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2015-新版-GMP标准制备间充质干细胞

2015-新版-GMP标准制备间充质干细胞
2015-新版-GMP标准制备间充质干细胞

Standard Operating Procedure for the Good Manufacturing Practice-Compliant Production of Human Bone Marrow

Mesenchymal Stem Cells

Livia Roseti,Marta Serra,and Alessandra Bassi Abstract

According to the European Regulation (EC 1394/2007),Mesenchymal Stem Cells expanded in culture for

clinical use are considered as Advanced Therapy Medicinal Products.As a consequence,they must be produced in compliance with Good Manufacturing Practice in order to ensure safety,reproducibility,and ef?cacy.Here,we report a Standard Operating Procedure describing the Good Manufacturing Practice-compliant production of Bone Marrow-derived Mesenchymal Stem Cells suitable for autologous implan-tation in humans.This procedure can be considered as a template for the development of investigational medicinal Mesenchymal Stem Cells-based product protocols to be enclosed in the dossier required for a clinical trial approval.Possible clinical applications concern local uses in the regeneration of bone tissue in nonunion fractures or in orthopedic and maxillofacial diseases characterized by a bone loss.

Keywords:Bone marrow,Mesenchymal stem cells,Good manufacturing practice,Quality control,Advanced therapy medicinal products,Bone regeneration

1

Introduction

Mesenchymal Stem Cells (MSCs)display a low density in bone

marrow,thus an in vitro expansion step is required in order to obtain a cell number suitable for clinical applications (1–3).Euro-pean regulations de?ne such expanded cells as Advanced Therapy Medicinal Products (ATMPs)that must be produced in accordance with the current Good Manufacturing Practice (GMP)(4,5).Those rules,which have been already encoded for conventional drugs,allow for the manufacture of medicinal products in a stan-dardized and controlled way minimizing,at the same time,con-tamination risks.

Here,we report a Standard Operating Procedure (SOP)describing the multistep GMP-compliant manual production of Bone Marrow-derived MSCs to be used for autologous implanta-tion in humans (6–8).MSCs,isolated from an eparinated (1,000I.U.of heparin)bone marrow sample harvested from the iliac crest of adult donors (9,10)(about 10–20ml),are expanded in monolayer

Methods in Molecular Biology (2015)1283:171–186DOI 10.1007/7651_2014_103

?Springer Science+Business Media New York 2014Published online:05August 2014

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up to 3weeks.The ?nal product is a small volume MSC suspension suitable for the clinical use only after passing proper quality con-trols.In fact,the procedure involves several GMP’s mandatory samplings for environmental and cell quality control analyses (3,11)that must be carried out by specialized laboratories and will not be described in detail.

Previous validation studies have stated ?nal product’s shelf-life (properly named stability):we demonstrated that MSC’s features (sterility,viability,and phenotype)are maintained at acceptable levels when the MSC suspension is stored at room temperature for a maximum of 72h.After this time the product expires and can no longer be transplanted.

To reach full GMP-compliance,the process generates two types of reference samples collected from the ?nal product—cells and supernatant—which should be both stored for at least 1year after implantation and analyzed if issues arise (12).

If implantation is delayed for organizational reasons or patient’s illness or if repeated doses at different times are required,cells are stored in liquid nitrogen as intermediate product.

This SOP can be utilized as a template for the development of investigational medicinal Mesenchymal Stem Cells-based product protocols to be enclosed in the dossier required for a clinical trial approval.Possible clinical applications concern local uses (cells alone or in combination with biomaterials and/or growth factors)for the regeneration of bone traumatic or degenerative damages,pseudoarthrosis and defects of consolidation,congenital disorders or maxillofacial injuries (13–15).

2

Materials

2.1

Raw Materials

Cell culture reagents suitable for cell therapy applications should be

purchased from Companies that guarantee their GMP compliance production.Sterility should be certi?ed by speci?c analyses,pre-formed in compliance with the requirements of the European Pharmacopoeia,current edition (16).

All reagents used in this protocols are:Dulbecco’s Modi?ed Eagle Medium (DMEM)low glucose (1g/l)(basal medium);Dul-becco’s Phosphate Buffered Saline (PBS)(1?);Fetal Bovine Serum (FBS)Pharma Grade,Australian Origin;L -Glutamine 200mM (recombinant origin)and Trypsin-Ethylenediaminetetraacetic acid (EDTA)(1:250)1?(porcine source).

Trypsin-EDTA and FBS must be also certi?ed to be free from porcine and bovine mycoplasmas and viruses,respectively.In addi-tion,FBS must be attested to be produced in a Bovine Spongiform Encephalopathy/Transmissible Spongiform Encephalopathy

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(BSE/TSE)free Country,such as Australia or New Zealand,and

screened for prion absence (17).

L -Glutamine’s recombinant origin must be clearly indicated and certi?ed too.

CryoSure-Dimethyl Sulfoxide (DMSO)is purchased from WAK–Chemie Medical GmbH,Germany.

Plastic material must be certi?ed to be sterile,pyrogen free (latex free whenever necessary)and tested for cell culture (or stem cell tested).Vented culture ?asks are recommended.

To manage high cell numbers we use a multilayer ?asks system (Hyper?ask vessels,Corning Life Sciences).Double or triple packages should be preferred to eliminate/reduce the need for alcohol wipe downs and similar procedures required in clean room production facilities.

Quality control sampling:

–BacT/ALERT 1Aerobic Culture Bottles (SA)(BioMerieux

Inc.,Marcy L’Etoile,Craponne,France)(18).

–BacT/ALERT 1

Anaerobic Culture Bottles (SN)(BioMerieux

Inc.,(Biomerieux Industry,Marcy L’Etoile,Craponne,France)(18).–Apirogenic Bottles for endotoxin testing (Charles River Labor-atoires,l’Arbresle,France).

–PCR tubes for Real time PCR detection of Mycoplasma contam-ination (Venor 1GeM-qDual Mycoplasma Detection Kit for Real-Time PCR,Minerva Biolabs GmbH,Berlin,Germany).

–Settle and contact plates for environmental microbiological con-trol and glove prints (Heipha Dr M €u

ller GmbH,Eppelnheim,Germany).

–Particle counter for environmental particle control.

2.2

Location

In Europe,a GMP-facility (Cell Factory)allowed to ATMP pro-duction by the competent authority is required (5).A GMP-facility

consists in environments where speci?c parameters such as air ?ltration and ventilation,temperature,relative humidity,differen-tial pressure,number of air particles,and bacterial colony forming units are standardized and continuously monitored.The structure includes clean rooms of different classi?cation up to A (the local zone for high-risk operations i.e.biohazard hood)in B work places (the background environment for the grade A zone),according to European current GMP (5).High-risk operations include manip-ulations where the cells are exposed to environment such as trypsi-nization and medium change.For lower-risk operations,such as medium warming or centrifugation,grade B areas are appropriate.Only trained and equipped personnel are admitted to the facility.

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Operator’s equipment includes protective and disposable clothes to

wear(Fig.1).Raw materials must be introduced separately from

personnel,through a clean pass box.

2.3Equipment Biohazard hood;CO2incubator(set at37 C temperature,5%

CO2and95%relative humidity);centrifuge;phase contrast micro-

scope;incubator(work chamber temperature of37 C);vortex;

chilling plate/refrigerated racks;cell counter;refrigerator/freezer;

liquid nitrogen tank.

3Method

3.1Cell Isolation and Seeding (See Notes1–4)

1.Warm/thaw basal medium,L-glutamine and FBS in the

incubator.

2.Under the biohazard hood prepare complete medium(basal

medium supplemented with10%FBS and4mM L-glutamine): discard by aspiration60ml from a500ml bottle of basal medium,add10ml L-glutamine and50ml FBS;resuspend with a pipette.

Fig.1Disposable sterile garments for cell manipulation.Cell manipulating operators as well as personnel must wear disposable garments that ensure biological products protection.Only trained and equipped operators can enter the GMP-facility

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3.Aspirate the eparinated bone marrow with a 18-G needle inserted in a syringe and transfer in sterile tube/s.

4.Resuspend and measure bone marrow amount with a pipette.

5.Dilute the bone marrow samples 1:4with complete medium

and resuspend.6.Harvest samples for microbiological control:

–1ml with a sterile syringe to inoculate in a BacT/ALERT 1

Aerobic Culture Bottle (SA)(Fig.2);–1ml with a sterile syringe to inoculate in a BacT/ALERT 1

Anaerobic Culture Bottle (SN)(Fig.2);–2ml to collect in PCR tube for mycoplasma detection.

Collected samples are then to be sent to the proper specialized

quality control laboratories that will perform the analyses (see Note 5).

7.Seed cells in culture ?asks,typically T75(7ml/T25;14ml/T75;28ml/T150;560ml/multilayer ?asks).8.Place the ?asks in the CO 2incubator.9.Store the complete medium at 4 C.

Fig.2Quality control sampling on Mesenchymal Stem Cells.To harvest

samples for microbiological control during critical steps,1ml of supernatant is inoculated into a BacT/ALERT ?Aerobic Culture Bottle (SA)and 1in a BacT/ALERT ?Anaerobic Culture Bottle (SN)with a sterile syringe (see Note 5).The bottles are then sent to a GMP-compliant Quality Control Laboratory for the analysis

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3.2First Medium Change(See Notes 1and2)

1.After3days,warm complete medium and PBS in the incubator.

2.Pull out the?asks from the CO2incubator and observe the

macroscopic appearance of the culture medium:

–if the medium is opaque or dense and yellow there is the suspect of a contamination.In this case the procedure is

stopped and sampling for microbiological control is

needed(see Section3.1);

–if the appearance is clear and the color red or dark red go on with this procedure.

3.Under the biohazard hood?lter the amount of complete

medium required for processing with a vacuum?ltration sys-tems(or with a?lter and a syringe).

4.Aspirate medium from the?asks and place it in sterile tubes.

5.Centrifuge the medium at500?g for7min,at room

temperature.

6.In the meantime add to the?asks the PBS solution(5ml for

T25?asks,10ml for T75?asks,20ml for T150?asks,100ml for multilayer?asks)in order to wash out stromal matrix debris and red blood cells(see Note6and Fig.3a).

7.Close the?asks and placed them horizontally for1min,gently

shaking.

8.Aspirate and discard the PBS.

9.Run a second wash(only steps7and8).

10.Evaluate the cultures under a phase-contrast microscope

(Fig.3b),noting the following parameters:cell adhesion (absent,present,partial,poor);cell density(con?uence,non-con?uence,next to the con?uence);cells in the supernatant (presence,absence);matrix/red blood cells(presence, absence);unusual morphology.

11.Transfer the?asks under the biohazard hood and discard

the PBS.

12.Transfer the centrifuged tubes under the biohazard hood,

aspirate half supernatant volume of that normally used to each?ask(3.5ml for the T25?asks,7ml for T75?asks, 14ml for T150?asks,280ml for multilayer?asks)(see Note6).

13.Add to the?asks the same amount of complete fresh medium

and resuspend.

14.Place the?asks in the CO2incubator.

15.Store reagents at4 C.

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3.3Trypsinization

and Intermediate Product Freezing

(See Notes 1,2,and 7)

1.After 3–4days,macroscopically evaluate culture medium,not-ing the following parameters:clarity/turbidity,color (red orange,red violet,yellow).

2.Check the cells under a phase-contrast microscope noting the

following parameters:cell adhesion (present,absent,poor);con?uence (70–80%con?uent,noncon?uent,next to the con?uence);cell presence or absence in the supernatant;matrix/red blood cells (presence,absence);unusual morphology.

3.Make a decision based on both observations (see steps 4,5,6,

and 7).

Fig.3Phase-contrast microscope morphological observation of Mesenchymal Stem Cells at different steps of the Standard Operating Procedure.(a )Three days after seeding (First medium change )red blood cells and matrix hamper observation.(b)Adherent cells become more visible only after two PBS washes .Matrix debris and/or red blood cells are still evident and should disappear in a few days.(c)Cells have reached 70–80%con?uence and trypsinization is recommended.(d)Full cell detachment occurs as a suspension of cells with round morphology after Trypsin-EDTA incubation.All images were taken with a digital camera (magni?cation ?4)

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4.If 70–80%con?uence is not reached,trypsinization should be delayed until reached and a medium change is needed.

5.In particular,change the culture medium with complete medium in the case of red medium color and/or adhesion;change the culture medium with a 20%FBS supplement in the case of violet medium color and/or poor adhesion:–warm complete medium and FBS (if necessary);–prepare 10or 20%FBS medium;

–transfer the cultures under the biohazard hood;

–?lter the needed amount of medium,depending on ?asks size and number;

–aspirate the medium from the ?asks and add proper

medium—complete or with 20%FBS—(7ml for T25?asks,14ml for T75?asks,28ml for T150?asks;560ml for multilayer ?asks);–close and place ?asks in the CO 2incubator.

6.Trypsinization and freezing can be performed in case of about

70–80%con?uence (Fig.3c ):–prepare complete medium if necessary;

–warm complete medium and PBS in the incubator;–thaw Trypsin-EDTA in the incubator;

–?lter the amount of reagents required for processing;–transfer the cultures under the biohazard hood;–aspirate and discard the supernatants;

–add the PBS wash solution (5ml for T25?asks,10ml for T75?asks,20ml for T150?asks,and 100ml for multilayer ?asks);–close and place horizontally the ?asks,gently shaking for 30–60s;–run a second wash;

–add the Trypsin-EDTA solution (4ml for T25?asks,7ml for T75?asks,14ml for T150?asks,and 100ml for multilayer ?asks);

–close and place the ?asks in the CO 2incubator for 15min to

allow cell detachment;–pick the ?asks and check the cells under the phase-contrast microscope to verify cell detachment (which occurs as a suspension of cells with round morphology)(Fig.3d );

–if some cells are still adherent to the substrate,put the ?asks

again in the CO 2incubator for 3–5min to allow full detachment;

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–if detachment is completed,inactivate the Trypsin-EDTA solution by adding complete medium to the?asks under the biohazard hood(8ml for T25?asks,14ml for T75?asks, 28ml for T150?asks,and200ml for multilayer?asks);

–resuspend and transfer to50ml tubes;

–collect a0.5ml sample for cell counting;

–centrifuge7min at500?g,at room temperature;

–in the meantime count the cells;

–under the biohazard hood open the centrifuged tubes,care-fully discard the supernatants and gently shake the pellets (see Note8);

–set the number of cryovials to use for freezing:1cryovial up to3?106?0.5?106MSCs;

–place the empty cryovials in a refrigerated rack;

–prepare the cell freezing mixture in a tube:0.9ml of com-plete medium,0.2ml of DMSO and0.9ml of FBS(mixture for one cryovial)(see Note7);

–resuspend,?lter,and place the mixture in the refrigerated rack;

–carefully discard the supernatant of the centrifuged tubes and gently resuspend the cell pellet(see Note8);

–add1.6ml of the freezing mix to each pellet,drop by drop, using a sterile pipette while gently shaking the tubes with the other hand;

–gently resuspend and transfer into the cryovials;

–close the cryovials and house them in a storage box that enables a slow decrease of the temperature(about1 C per minute);

–exit the cleanroom and place the container into a freezer set at a75 C temperature;

–after about24h place the cryovials in the vapor phase of a liquid nitrogen tank(see Note7).

7.Collect samples for microbiological tests in case of suspected

contamination(yellow color,unusual morphology)as in Section3.1and stop the procedure until results(see Note5).

3.4Intermediate Product Thawing and Seeding(See Notes1, 2,5,and7)1.Open the liquid nitrogen tank and harvest the cryovials,check-

ing their integrity and identity.

2.Get samples in the cleanroom(through the pass box)within a

refrigerated rack.

3.Prepare and warm a20%FBS supplemented medium.

4.Place the cryovials in the incubator.

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5.After3–4min check if the cell suspension appears thawed.

6.If small ice chunks are still evident put the samples again in the

incubator for30–60s.

7.When no more ice residues are visible,place the cryovials under

the biohazard hood and transfer each cell suspension in a tube containing18ml of the20%FBS medium.

8.Close the tubes and vortex the solution for about10s.

9.Centrifuge at500?g for7min,at room temperature.

10.Transfer the supernatant into sterile tubes for quality control

sampling as in Section3.1.

11.Gently shake the pellets,add20%FBS medium(7ml for T25

?asks,14ml for T75?asks,28ml for T150?asks,560ml for multilayer?asks)and resuspend(see Note8).

12.Seed at low density in an adequate number of culture?asks(see

Note9).

13.Check cell presence under the phase-contrast microscope.

14.Place the?asks in the CO2incubator.

3.5Expansion(See Notes1,2,and10)1.Pull out?asks from the CO2incubator.

2.Macroscopically evaluate culture medium,noting the following

parameters:clarity/turbidity,color(red orange,red violet, yellow).

3.Check the cells under a phase-contrast microscope noting the

following parameters:cell adhesion(present,absent,poor);

con?uence(con?uent,noncon?uent,next to the con?uence);

cell presence or absence in the supernatant;matrix/red blood cells(presence,absence);unusual morphology.

4.Make a decision based on both observations as detailed below.

5.Change the culture medium with complete medium in the case

of red medium color and/or cell adhesion;change the culture medium with a20%FBS supplement in the case of violet medium color and/or poor adhesion,as described in Section3.3.

6.Trypsinization in case of about70–80%con?uence(see

Note10)(Fig.3c)or if matrix debris and/or red blood cells are still evident(see Note6)(Fig.3a,b):

–trypsinize(until centrifugation step)and count the cells,as detailed in Section3.3

–add to the pellets the necessary amount of complete medium in order to allow a low density seeding,resuspend and place in culture?asks(14ml for T75?asks,28ml for T150?asks,560for the multilayer?asks)(see Note9);

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–check cell presence in the?asks under the phase-contrast microscope;

–place the?asks in the CO2incubator.

7.Collect samples for microbiological tests in case of suspected

contamination(yellow color,unusual morphology)as in Sec-tion3.1and stop the procedure until results(see Note5).

3.6Final Product Packaging and Reference Samples Generation(See Notes 1and2)1.Warm reagents and prepare?nal medium:basal medium sup-

plemented with L-glutamine(no FBS)(see Note11).

2.Trypsinize and count the cells as detailed in Section

3.3,until

centrifugation step.

3.Gently shake the pellets and add40m?nal medium(see Note8).

4.Centrifuge7min at500?g,at room temperature.

5.Repeat steps3and4(see Note11).

6.Under the biohazard hood transfer the supernatant into sterile

tubes from which to collect the following samples that are then to be sent to the proper specialized laboratories of quality control:

–1ml with a sterile syringe to inoculate in a BacT/ALERT1 Aerobic Culture Bottle(SA);

–1ml with a sterile syringe to inoculate in a BacT/ALERT1 Anaerobic Culture Bottle(SN)(see Note5);

–2ml with a sterile pipette to be placed in a proper tube for PCR mycoplasma detection;

–0.5ml with a sterile pipette to inoculate in an a-pyrogenic Bottle for endotoxin testing;

–0.5ml with a sterile pipette to be placed in a tube and frozen as counter sample atà80 C.

7.Gently shake the pellets,add?nal medium in order to reach a

1–2?106cell concentration.

Resuspend and collect the following samples which are then to be sent to the proper specialized laboratories of quality control (see Notes5and12):

– 1.2?106cells in micro-tubes for the phenotypical analysis (immuno-phenotype and tri-lineage ability);

– 2.0?106cells for karyotyping;

– 1.0?106cells in a tube as a counter sample to be frozen as in Section3.3.

8.Transfer cell suspension into proper,identi?ed tubes(primary

container)(Fig.4a)

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9.Close each tube and put it in a secondary plastic sterile bag

(secondary container)(Fig.4a ).

10.Close and insert in outer jar container (Fig.4b ).

11.Put a label on the outer container,which must contain

(Fig.4b ):

–identi?cation of the Manufacturer;–identi?cation of the product;–indication of the use (i.e.autologous use only);–batch number;

–identi?cation code of the patient;–expiration date;

signature of the person in charge.

12.Exit the Cleanroom and store the ?nal product at room tem-perature for a maximum of 72h.13.For the shipment use a container with lock (Fig.4c ).

4Notes

1.To avoid the risk of cross-contamination during manipulation it is required to use disposable materials and not to share reagents between cultures.Moreover,it is not possible to simultaneously process cultures from different patient,but only sequentially and after decontamination of the biohazard hood and relative equipment.

2.Sampling for environmental (microbiological and particles)control is required during each phase of the process.At the

Fig.4Final product packaging.The ?nal cellular products is transferred into proper tubes (primary container,

a ),then put it into secondary sterile bags (secondary container,a ).The product is then inserted in a plastic jar,properly labeled (a and

b ).For the shipment a container with lock is utilized (

c )

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end of cell manipulation,each operator should take glove prints

on agar plates.Recommended limits for contamination are indicated in EudraLex-Volume 4GMP Guidelines (5).

3.A peripheral blood sample from each patient is needed in order to evaluate the presence of transmissible pathologies (Acquired Immune De?ciency Syndrome,Hepatitis B and C,and syphilis)(12).If a GMP-facility does not have the possibility to manipu-late the infected cells in separated areas,positive patients must be excluded.Therefore,manipulation can start only after nega-tivity is stated.This usually takes 1or 2days.In the meantime the bone marrow samples can be stored at 5?3 C.

4.Density-gradient separation method is considered a standard

step for MSC isolation from bone marrow.However,such a procedure is time consuming and reagents are not often approved for clinical use.Therefore many GMP-facilities are trying to develop alternative methods,such as direct or diluted bone marrow seeding (9).

5.Microbiological control and Mycoplasma analysis are per-formed in the critical steps of isolation,thawing,and ?nal product packaging.Isolation and thawing criticism have been established by our GMP-facility on the basis that cell material is newly introduced or reintroduced in the cleanroom,respec-tively.Being “?nal product packaging”the most critical step since cells are then implanted in the patient,additional sam-pling for quality control analyses are required,such as for endotoxin detection,viability,phenotype,and genotype stabil-ity evaluation (4,5,7).If a cell contamination is detected,the process must be stopped.Since the here described orthopedic applications are not lifesaving,contaminated cells cannot be sterilized by irradiation or other treatments and must be discarded.

6.In the “?rst medium change step”matrix and red blood cells

presence (Fig.3a )should be reduced by two PBS washes.This makes also possible to check cell presence under the phase-contrast microscope (Fig.3b ).Usually,debris gradually reduces until disappearance in 7-8days.However,if residues still persist in the cultures,a trypsinization,which in general dissolves all of them,is recommended.The ?rst medium change is then per-formed using half of the centrifuged supernatants of the isola-tion step and half fresh complete medium.The supernatants,centrifuged in order to remove matrix debris and red blood cells,are utilized since rich of soluble factor produced by the cells themselves that can be useful for adhesion and growth.On the other hand,since it can carry also catabolic factors,fresh medium is added to enhance cell metabolism.

GMP Production of Mesenchymal Stem Cells

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7.If the intermediate product is not to be frozen,it is possible to switch directly out 3.2Section to 3.5one.Freezing procedure should be slow in order to lead to the deposition of ice in the extracellular environment.In fact,the rapid freezing leads to the formation of ice crystals within the cells,leading to the rupture of the plasma membrane at the time of thawing.Since the DMSO makes cell membranes permeable,the freezing mixture encloses also FBS at high concentration in order to maintain cell integrity.To avoid contamination (for example,mycoplasma),and for safety reasons,it is recommended to store cell cryovials in the upper gas phase and not to soak them in liquid nitrogen.Moreover,if the cryovials are stored by immersion in liquid nitrogen,the nitrogen may penetrate the samples.As a consequence,during defrosting,the vapor-ized nitrogen can generate a high pressure resulting in an explosion and release of material.During handling of cryogenic frozen vials,adequate protection measures should always be followed by wearing safety glasses and gloves and working on a suitable work surface.

8.After each centrifugation the supernatants are discarded and a ?rst cell resuspension is performed by gently shaking the pellets (or giving little shots to the tube).In fact small volumes allow the resuspension to occur without forming aggregates.The proper volume of medium can be then added and cells will be more easily resuspended with a pipette.

9.Increasing evidence in the literature suggests that MSC seeding

density affects their proliferation rate and required functions (6).Some clinical trials have involved high cell density,but some studies highlighted that lower densities have faster prolif-eration than those cultured at higher densities.However,low or very low densities requires wide culture surface and can be dif?cult to manage.A plating density of 1,000cells/cm 2has

been suggested by Sensebe

`et al.(6)for a high number of harvested cells.However,it is important for each GMP-facility to investigate and identify the “optimal”cell density condition,taking into account cell type and target,clinical protocol,appli-cation (local o systemic),and equipment/technology.

10.In the expansion phase,cells are checked twice a week and,

depending on their density status,a medium change or a trypsinization occurs.Based on our experience and given cell’s biological variability,the number of trypsinization may vary between 1and 2.

11.FBS,besides animal origin related problems,may imply

immune responses in patients.We justify our choice to use FBS in monolayer conditions because it allowed a better cell growth standardization.However,since its potentially danger-ous action could not be ignored,we decided to avoid FBS

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presence in the?nal products.Therefore,in order to reduce/

minimize FBS presence,cells are centrifuged twice and the?nal

product is resuspended in a serum free medium.However,it is

possible that FBS residues remain in the suspension and this

must be highlighted in the accompanying documentation.

12.The problem with living cells products is that they need to be

implanted before most quality control results are completed.

Therefore,a robust process validation must be performed

before starting the clinical trial and a careful risk analysis must

be carried out in order to assess the corrective actions to be

taken if the results are out of speci?cation(e.g.,the administra-

tion of antibiotics to a patient in case of microbial contamina-

tion).As a precaution we decided to routinely give the

permission to implantation only after24h occur from product

preparation,time that allows at least endotoxin results to be

already available.

Acknowledgments

This work was supported by the grant“Progetto di Medicina

Rigenerativa”from“Regione Emilia Romagna”(Delibera di

Giunta n.2233/2008).

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新质量标准化要求及考核办法

第5部分掘进 一、基本条件 生产矿井不应存在以下情况: (1)开拓煤量、准备煤是、回采煤量不满足规定要求:(2)使用明令禁止使用或者淘汰的设备、工艺。二、基本要求 1、生产组织 生产组织应符合以下要求: (1)按采煤工作面相对集中、效能最大的生产布局进行组织,实行 集约生产;(2)科学进行劳动组织;(3)采掘关系合理; (4)掘进工作面的生产运输系统合理、简单。 2、设备配置 设备配置应符合以下要求: (1)无国家明令淘汰、禁止使用的危及生产安全的设备; (2)运输系统设备配置合理,不应有制约因素,材料应采用机械运 输; (3)具备条件的应使用综合机械化掘进。 3、技术保障 技术保障应符合以下要求: (1)技术管理体系健全,有矿压观测、分析、预报制度;(2)按规定设置机构和人员,配齐仪器仪表; (3)作业规程和安全技术措施针对性、可操作性强,审批手续完备, 贯彻、考核和签字记录齐全,作业规程每2个月至少组织1次复审并有复审意见; (4)作业场所有规范的施工图牌板; (5)在支护、生产组织等方面应开展技术创新。 4、岗位规范 岗位规范应符合以下要求: (1)进行岗位人员培训,其能力符合相应岗位要求; (2)操作规范,无违章指挥、无违章作业、无违反劳动纪律的行为;(3)管理和技术人员应掌握专业技术,作业人员应熟知本岗位作业 规程和安全技术措施; (4)作业前进行隐患排查,并实行闭合管理。 5、工程质量 工程质量应符合以下要求: (1)临时支护措施到位,安全设施齐全可靠;(2)无不合格工程; (3)规格质量、内在质量、附属工程质量、工程观感质量按GB50213 中对应的支护方式或施工形式验收,未明确规定的支护方式或施工形式参照执行。 6、 文明生产 作业场所卫生整洁,照明适度,工具、材料等放置整齐,设备设施保持良好状态。作业范围内支护完好,无失修巷道。三、评分方法 按表5-1评分、总分为100分。全部掘进工作面按所检查存在的问题进行扣分(不同工作面中出现的同样问题不重复扣分),小项分数扣完为止。项目内容中有缺项时按下列计算公式进行折算: A=B/B-C×D 式中A——本项折合分数; B——本项标准分数; C——缺项标准分数; D——本项检查实得分数。 表5-1煤矿掘进安全质量标准化评分表

2021新版工资总额与安全质量标准化等级挂钩制度

2021新版工资总额与安全质量标准化等级挂钩制度Safety management refers to ensuring the smooth and effective progress of social and economic activities and production on the premise of ensuring social and personal safety. ( 安全管理) 单位:_______________________ 部门:_______________________ 日期:_______________________ 本文档文字可以自由修改

2021新版工资总额与安全质量标准化等 级挂钩制度 煤矿安全质量标准化工作是搞好安全生产的重要基础,是建立安全生产长效机制的根本途径。为进一步改善安全标准化工作,不断提高矿井安全质量标准化等级,保证职工的收入稳定增长,现特制定工资总额与安全质量标准化等级挂钩制度。 一、安全质量标准化等级分为两级:一级质量标准化矿井和二级质量标准化矿井。 二、努力达到二级质量标准化矿井,力争达到一级质量标准化矿井。 三、安全质量标准化矿井必须与工资总额挂钩。

四、每月从工资总额中提取出20%用于质量标准化的奖惩。达到一级质量标准化矿井奖工资总额的30%,达不到一级质量标准化矿井罚工资总额的20%。达到二级质量标准化矿井奖工资总额的20%,达不到二级质量标准化矿井,罚工资总额的30%. 五、安全质量标准化的的考核工作由调度室考核。调度室必须派专人负责次项工作。 六、对每次的考核结果必须及时记录,公布,并根据具体情况对达标科室和有突出贡献的人员进行奖励,对没有达标的科室及不积极主动的人员进行处罚。 七、每月由分管质量标准化的分管矿长主持,组织相关科室对矿井的各个小项进行打分并记录存档,作为评先的条件之一。 可在本位置填写公司名或地址 YOU CAN FILL IN THE COMPANY NAME OR ADDRESS IN THIS POSITION

2017新版煤矿安全生产质量标准化--采煤

第6部分采煤 一、工作要求 1.基础管理 (1)采区回采率达到设计要求。采煤工作面回采率符合规定,其中薄煤层工作面不低于97%,中厚煤层工作面不低于95%,厚煤层工作面不低于93%(综采放顶煤工作面不低于85%); (2)有批准的采(盘)区设计,采(盘)区内同时生产的采煤工作面个数符合《煤矿安全规程》的规定;按规定编制《采煤工作面作业规程》; (3)采煤工艺符合国家规定,持续提高采煤机械化水平; (4)有支护质量、顶板动态监测制度,技术管理体系健全。 2.岗位规范 (1)操作规范,无违章指挥、违章作业、违反劳动纪律(以下简称“三违”)行为; (2)管理人员、技术人员掌握采煤工作面作业规程,作业人员熟知本岗位操作规程、作业规程及安全技术措施相关内容; (3)作业前进行安全确认。 3.质量与安全 (1)工作面的支护形式、支护参数符合作业规程要求; (2)工作面出口畅通,进、回风巷作业范围内支护完好,无失修巷道,巷道断面满足通风、运输、行人、设备安装、检修的需要;

(3)工作面通信、监测监控设备运行正常; (4)工作面安全防护设施和安全措施符合规定。 4.机电设备 (1)设备能力匹配,系统无制约因素; (2)不使用国家明令淘汰的设备; (3)设备完好,保护齐全; (4)乳化液泵站压力和乳化液浓度符合要求,并有现场检测手段。 5.文明生产 (1)作业场所卫生整洁,照明符合规定; (2)工具、材料等摆放整齐,管线吊挂规范,图牌板内容准确、清晰。 二、重大事故隐患判定 本部分存在以下重大事故隐患: (1)矿井全年原煤产量超过矿井核定生产能力110%的,或者矿井月产量超过矿井核定生产能力10%的; (2)矿井开拓、准备、回采煤量可采期小于有关标准规定的最短时间组织生产、造成接续紧张的,或者采用“剃头下山”开采的。 (3)超出采矿许可证规定开采煤层层位或者标高而进行开采的; (4)超出采矿许可证载明的坐标控制范围而开采的; (5)擅自开采保安煤柱的。

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When the lives of employees or national property are endangered, production activities are stopped to rectify and eliminate dangerous factors. (安全管理) 单位:___________________ 姓名:___________________ 日期:___________________ 煤矿安全质量标准化考核评级办 法、评分办法(新版)

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建筑施工安全质量标准化管理实施细则最新版.doc

建筑施工安全质量标准化管理实施细则 青岛一建集团有限公司

建筑施工安全质量标准化管理实施细则 第一章 总则 第一条 为了提高公司建筑施工现场安全生产、文明施工管理水平,促进施工现场管理科学化、规范化和标准化,依据《建筑法》《安全生产法》和《建设工程安全生产管理条例》等有关法律、法规,按照国家建设部《关于开展建筑施工安全质量标准化工作的指导意见》要求,结合公司在建工程实际情况,制定本实施细则。 第二条 本实施细则适用于本公司建筑工程的施工现场管理。 第三条 公司安全部对公司建筑活动实施统一管理,负责建设工程安全生产的监督,指导项目部开展建筑施工安全质量标准化工作。安全部具体监督落实和管理施工现场安全质量标准化工作,定期检查和日常巡查施工现场安全质量标准化工作和安全施工措施的落实执行情况。 第四条 加强综合整治,安全部联合工程部、生产计划部等部门按照各自的职责分工,共同做好施工现场监督检查工作。 第五条 本实施细则是规范建筑施工现场各方责任主体行为,明确建设各方责任主体的职责和要求,考核建筑施工现场标准化管理的基本依据。 第六条 建筑施工现场管理,除应遵循本实施细则外,还应符合国家、省、青岛市有关法律法规和规范性文件要求。 第七条 项目部各方责任主体应建立和完善组织机构,并设专人负责施工现场标准化管理工作。 第八条 项目部各方责任主体应加强科学技术研究和先进技术的推广应用,推进建筑工程的科学管理。 第九条 本实施细则为管理性标准,有关技术要求应执行相应的技术标准和规范。 第二章安全管理基本术语 第十条 安全生产——为预防生产过程中发生事故而采取的各种措施和活动。本实施细则是指建筑施工过程中的安全生产。即为了确保职工在施工过程中的安全和设备、设施的安全可靠而采取的安全技术措施和安全管理活动。 第十一条 安全技术措施——为实现安全生产,在防护上、技术上和管理上采取的措施,所有建筑工程的施工组织设计(施工方案),都必须有安全技术措施。

2017年新安全质量标准化基本要求及评分办法

附件2 煤矿安全生产标准化基本要求及评分方法 (试行) 第1部分总则 一、基本条件 安全生产标准化达标煤矿应具备以下基本条件: 1.采矿许可证、安全生产许可证、营业执照齐全有效; 2.矿长、副矿长、总工程师、副总工程师(技术负责人)在规定的时间内参加由煤矿安全监管部门组织的安全生产知识和管理能力考核,并取得考核合格证; 3.不存在各部分所列举的重大事故隐患; 4.建立矿长安全生产承诺制度,矿长每年向全体职工公开承诺,牢固树立安全生产“红线意识”,及时消除事故隐患,保证安全投入,持续保持煤矿安全生产条件,保护矿工生命安全。 二、等级设定 煤矿安全生产标准化等级分为一级、二级、三级。一级为最高级。 三、工作要求 1.建立和保持 煤矿是创建并持续保持标准化动态达标的责任主体。应通过实施安全风险分级管控和事故隐患排查治理、规范行为、控制质量、提高装备和管理水平、强化培训,使煤矿达到并持续保持安全生产标准化等级标准,保障安全生产。 2.目标与计划 制定安全生产标准化创建年度计划,并分解到相关部门严格执行和考核。 3.组织机构与职责

有负责安全生产标准化工作的机构,各单位、部门和人员的安全生产标准化工作职责明确。 4.安全生产标准化投入 保障安全生产标准化经费,持续改进和完善安全生产条件。 5.技术保障 健全技术管理体系,完善工作制度,开展技术创新;作业规程、操作规程及安全技术措施编制符合要求,审批手续完备,贯彻执行到位。 6.现场管理和过程控制 加强各生产环节的过程管控和现场管理,定期开展安全生产标准化达标自检工作。 7.持续改善 煤矿取得的安全生产标准化等级,是煤矿安全生产标准化工作主管部门在考核定级时,对煤矿安全生产标准化工作现状的测评,是对煤矿执行《安全生产法》等相关规定组织开展安全生产标准化建设情况的考核认定。取得等级的煤矿应在取得的等级基础上,有目的、有计划地持续改进工艺技术、设备设施、管理措施,规范员工安全行为,进一步改善安全生产条件,使煤矿持续保持考核定级时的安全生产条件,并不断提高安全生产标准化水平,建立安全生产标准化长效机制。 四、煤矿安全生产标准化体系 1.井工煤矿 (1)安全风险分级管控。考核内容执行本方法第2部分“安全风险分级管控”的规定; (2)事故隐患排查治理。考核内容执行本方法第3部分“事故隐患排查治理”的规定。 (3)通风。考核内容执行本方法第4部分“通风”的规定。 (4)地质灾害防治与测量。考核内容执行本方法第5部分“地质灾害防治与测量”的规定。 (5)采煤。考核内容执行本方法第6部分“采煤”的规定。 (6)掘进。考核内容执行本方法第7部分“掘进”的规定。 (7)机电。考核内容执行本方法第8部分“机电”的规定。 (8)运输。考核内容执行本方法第9部分“运输”的规定。 (9)职业卫生。考核内容执行本方法第10部分“职业卫生”

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