Phone
  ´ëÇ¥ÀüÈ­ 1577-7956  
  º»     »ç 031-457-9187  
  ´ë     Àü 042-932-1265

Web Site Visitors
  Today 502    
  Yesterday 747    
  Since 2006 1,942,342    


¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±×
 
[Sartorius Application Note]       ¿øº»º¸±â : Application Note       Application Note List ·Î µ¹¾Æ°¡±â





Introduction

CAR-T ¸é¿ªÄ¡·áÁ¦´Â ¿©·¯ ¾Ç¼º ¾Ï Ä¡·á¿¡ ´ëÇØ ±àÁ¤ÀûÀÎ È¿°ú°¡ ³ªÅ¸³ª°í ÀÖ´Ù. 2017³â ÀÌÈÄ·Î ´ÙÀ½ 3Á¾·ùÀÇCAR-T ¼¼Æ÷ Ä¡·áÁ¦°¡ ½ÂÀεǾúÀ¸¸ç ÇöÀç 100°³ ÀÌ»óÀÇ ±â¾÷µéÀÌ CAR-T Ä¡·áÁ¦¸¦ °³¹ßÇÏ°í ÀÖ´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Ù.

1. Kymriah¢â for B-cell precursor acute lymphoblastic leukemia in 2017 and for relapsed or refractory large B-cell lymphoma in 2018
2. Yescarta¢â for relapsed or refractory large B-cell lymphoma in 2017
3. Tecartus¢â for relapsed or refractory mantle cell lymphoma in 2020

¿©±â¼­´Â Sartorius »çÀÇ T-Cell Expansion Solution Àº aurologous CAR-T expansion °³¹ß°ú Á¦Á¶¿¡ ¸Å¿ì È¿°úÀûÀ̶ó´Â °ÍÀ» È®ÀÎÇÏ°íÀÚ ÇÑ´Ù.

Sartorius »çÀÇ T-Cell Expansion Solution Àº ´ÙÀ½°ú °°ÀÌ ÀÌ·ç¾î Á® ÀÖÀ¸¸ç ¸Å¿ì °æÁ¦ÀûÀ̸ç È¿°ú°¡ Ź¿ùÇÏ°í Ç×»ó ÀÏÁ¤ÇÑ T-cell expansion À» °¡´ÉÇÏ°Ô ÇÑ´Ù.
- Sartorius Biostat¢ç RM TX Twin bioreactor
- Flexsafe¢ç RM TX bag
- 4Cell¢ç Nutri-T medium


Material & Methods

Materials
- Biostat¢ç B Twin controller unit
- Biostat¢ç RM TX Twin system
- Flexsafe¢ç RM TX bags (2L) with perfusion membrane and single-use pH and DO sensors
- 4Cell¢ç Nutri-T mediu

Cells
Human primary T-cells Àº ³Ãµ¿º¸°üµÈ PBMC (peripheral blood mononuclear cell, donor 1 & donor 2) ¸¦ ÀÌ¿ëÇÏ¿´À¸¸ç ÀÌ cell À» Çص¿½ÃŲ ÈÄ T-cell culture medium (4Cell¢ç Nutri-T medium supplemented with 600 U/mL IL-2) ¿¡¼­ 37¡É 5% CO©ü incubator ¿¡¼­ 2 x 10^6 cells/ml cell density ·Î seed culture ÇÏ¿´´Ù. ±× ´ÙÀ½³¯ ¼¼Æ÷¸¦ new flask ¿¡ ¿Å±ä ÈÄ 1 x 10^6 cells/ml cell density ¿¡¼­ 1:100 TransActTM À» ÀÌ¿ëÇÏ¿© ¼¼Æ÷¸¦ activation ÇÏ¿´´Ù.

Transduction
24½Ã°£ activation ÇÑ ÈÄ anti-CD19 CAR ¿Í truncated form of the epidermal growth factor receptor (EGFRt) ¸¦ coding ÇÏ´Â VSV-G pseudotyped lentiviral vectors ¸¦ T-cell ¿¡ transduction ÇÏ¿´´Ù. EGFRt ´Â transduction marker ·Î »ç¿ëµÈ´Ù.
Lentivirus infection ÀÌƲ ÈÄ ¹è¾ç medium À» »õ medium À¸·Î °¥¾ÆÁÖ¾ú´Ù.

CAR T-cell expansion in the Biostat¢ç RM TX Twin system
Two donors ÀÇ cell À» ÀÌ¿ëÇϹǷΠµÎ °³ÀÇ ¼¼Æ÷¸¦ µ¿½Ã¿¡ °¡µ¿ÇÒ ¼ö ÀÖ´Â Biostat RM TX Twin bioreactor system À» »ç¿ëÇÏ¿´À¸¸ç ¿©±â¿¡ »ç¿ëµÇ´Â culture bag Àº 1.2§­ perfusion membrane À» ÀåÂøÇÑ Flexsafe RM TX ÀÏȸ¿ë 2L bag À» »ç¿ëÇÏ¿´°í ¶ÇÇÑ ÀÏȸ¿ë pH & DO ¼¾¼­¸¦ ÀÌ¿ëÇÏ¿´´Ù.

Seed culture µÈ T- cell À» 0.3 Liter ÀÇ 4Cell¢ç Nutri-T medium (supplemented with 600 U/mL IL-2) ¿¡ 0.5 x 10^6 cells/ml ÀÇ density ·Î inoculation ÇÏ¿´´Ù.
ÇÏ·ç¿Í ÀÌƲ µÚ¿¡ °¢°¢ ÃÑ volume ÀÌ 0.6L, 1.0L °¡ µÇµµ·Ï medium À» Ãß°¡ÇÏ¿´´Ù.
3ÀÏ°ºÎÅÍ 5ÀÏ°±îÁö 4Cell¢ç Nutri-T medium ¸¦ ÀÌ¿ëÇÏ¿© 600ml/d ÀÌ µÇµµ·Ï perfusion À» ½ÃÇàÇÏ¿´´Ù.




Determination of transduced cells
¹è¾çµÈ ¼¼Æ÷ Áß¿¡ lentivirus ¿¡ infection µÈ Transduced cell ÀÌ ¾î´À Á¤µµÀÎÁö È®ÀÎÇϱâ À§ÇØ anti-human EGFR phycoerythrin - conjugated antibody ¸¦ ÀÌ¿ëÇÏ¿© È®ÀÎÇÏ¿´´Ù.

Cell count & viability measurement
Trypan blue ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© transduced¼¼Æ÷¼ö¿Í viability ¸¦ ÃøÁ¤ÇÏ¿´´Ù.


Results

Monitoring of CAR-T expansion
¹è¾ç 5ÀÏÀÌ Áö³­ ÈÄ two donor ÀÇ total cell density ´Â 7.7 - 7.8 x 10^9 cells/L °¡ µÇ¾ú°í Viability ´Â 90% ÀÌ»óÀÌ µÇ¾ú´Ù.
ÀÌ´Â ¼¼Æ÷µéÀÌ bioreactor ÀÇ rocking motion ¿¡ Àß ÀûÀÀÇÏ¿´°í ¶ÇÇÑ ½ÇÇàÇÑ process parameter ¿Í feeding regime ÀÌ cell viability ÀÇ È¸º¹¿¡ È¿°ú°¡ ÁÁ¾Ò´Ù´Â °ÍÀ» ÀǹÌÇÑ´Ù.




¹è¾çµÈ ¼¼Æ÷¿¡¼­ CAR-T cell ÀÇ ¼ö¸¦ ÃøÁ¤ÇÑ °á°ú ¹è¾ç 5ÀÏ°¿¡ donor 1 Àº 1.5 x 10^8 ÀÌ°í donor 2 ´Â 5.2 x 10^7 ·Î¼­ donor 1 ÀÇ CAR-T cell ÀÌ donor 2 º¸´Ù ¾à 3¹è ´õ ¸¹¾Ò´Ù. ÀÌ´Â donor 1 ¿¡¼­ÀÇ transduction efficiency °¡ ´õ ÁÁ¾Ò±â ¶§¹®ÀÏ °ÍÀ¸·Î »ý°¢µÈ´Ù.




Online monitoring of pH and DO
ÀÌ case study ¿¡¼­´Â 5% CO2 ¿Í 95% air Á¶°Ç¿¡¼­ CAR-T cell À» ¹è¾çÇÏ¿´À¸¸ç Flexsafe RM TX single-use 2 L bag ¿¡ ÀåÂøµÈ pH, DO ÀÏȸ¿ë ¼¾¼­¸¦ ÀÌ¿ëÇÏ¿© ¿¬¼ÓÀûÀ¸·Î pH ¿Í DO ¸¦ ÃøÁ¤ÇÏ¿´´Ù




Figure 4 ¿¡¼­ º¸µíÀÌ µÎ sample ÀÇ pH, DO º¯È­´Â À¯»çÇÑ ÆÐÅÏÀ» º¸ÀδÙ.
pH ÀÇ °æ¿ì inoculation ÈÄ 7.6±îÁö »ó½ÂÇß´Ù°¡ ¼­¼­È÷ ÇÏ°­ÇÏ¿© ¹è¾ç ¸¶Áö¸· ´Ü°è¿¡¼­ 7.2 - 7.3 ¿¡ ¸Ó¹°·¶´Ù. DO ´Â ¹è¾ç 2ÀÏ°±îÁö ¾à°£ÀÇ °¨¼Ò°¡ Àִµ¥ ÀÌ°ÍÀº ÀÌ ±â°£Áß¿¡ fed-batch mode ¿¡ °ø±ÞµÇ´Â medium fed ´Â DO ¸¦ ÀÏÁ¤ÇÏ°Ô À¯ÁöÇϴµ¥ ÃæºÐÇÏ´Ù´Â °ÍÀ» ÀǹÌÇÑ´Ù. 3ÀÏ° ºÎÅÍ´Â perfusion mode °¡ ½ÃÀ۵ǰí À̶§ºÎÅÍ DO ´Â ÇöÀúÈ÷ °¨¼ÒÇϱ⠽ÃÀÛÇϴµ¥ ÀÌ´Â ÀÌ ½Ã±â¿¡ ¼¼Æ÷°¡ ±Þ°ÝÇÏ°Ô Áõ°¡ÇÔ¿¡ µû¸¥ DO ¼Ò¸ð¸¦ perfused fresh medium ÀÌ º¸ÃæÇÏÁö ¸øÇÏ°í ÀÖ´Ù´Â °ÍÀ» ÀǹÌÇÑ´Ù.

°á·ÐÀûÀ¸·Î ¾Æ¹«°Íµµ Á¶ÀýÇÏÁö ¾Ê±â ¶§¹®¿¡ ¿¹»óÇÑ´ë·Î pH ¿Í DO ´Â °¨¼ÒÇÑ´Ù. ±×·¯³ª Èï¹Ì·Ó°Ôµµ ÀÌ ½Ã°£µ¿¾È ¼¼Æ÷¼ö¿Í viability ´Â Áõ°¡¼¼¸¦ À¯ÁöÇϴµ¥ ÀÌ´Â Àû¿ëÇÏ°í ÀÖ´Â parameter °¡ ¼¼Æ÷ ¹è¾ç¿¡ ÃæºÐÇÏ´Ù´Â °ÍÀ» ÀǹÌÇÑ´Ù.


Discussion

À̹ø case study ¿¡¼­ ¿ì¸®´Â ´ÙÀ½°ú °°Àº ³»¿ëÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.

Sartorius T-Cell Expansion Solution Àº CAR-T cell À» ¼º°øÀûÀ¸·Î expansion ÇÏ¿´´Ù.

Ãʱâ inoculation ÇÒ ¶§¿¡ cell viability °¡ 55-65% ·Î ³·Àº »óÅ¿´Áö¸¸ expansion À» ÇÒ ¶§¿¡´Â 90% ÀÌ»óÀÇ cell viability ¸¦ º¸¿´´Ù.

ÀåÂøµÇ¾î ÀÖ´Â ÀÏȸ¿ë optical pH & DO sensor ´Â expansion Àü °úÁ¤¿¡¼­ pH ¿Í DO ¸¦ ¿¬¼ÓÀûÀ¸·Î monitoring ÇÒ ¼ö ÀÖ¾ú´Ù.

Ãʱ⿡´Â pH ¿Í DO ÀÇ °¨¼Ò°¡ ÀÖ¾úÁö¸¸ cell number ¿Í viability ´Â ¼º°øÀûÀ¸·Î À¯Áö µÇ¾ú´Ù.


Conclusion

Sartorius T-Cell Expansion Solution Àº CAR T-cell expansion ½Ã½ºÅÛ °³¹ß¿¡ ¸Å¿ì È¿À²ÀûÀÌ°í »ç¿ëÀÌ ¸Å¿ì Æí¸®ÇÑ solution ÀÌ´Ù.

T-cell yield ´Â ÀÓ»ó¿¡ ÀûÇÕÇÑ 1 x 10^8 ÀÌ»óÀ̾ú´Ù




 
(ÁÖ)¿µÁøÄÚÆÛ·¹ÀÌ¼Ç   |   ´ëÇ¥ : ÀÌÇü¿­   |   »ç¾÷ÀÚµî·Ï¹øÈ£ : 138-81-34745
±º Æ÷ º» »ç   |   (15853) °æ±âµµ ±ºÆ÷½Ã ÇѼ¼·Î 48 ³²¿øºôµù 2Ãþ   |   ÀüÈ­ : 1577-7956 (1)   |   Æѽº : 031-457-9188   |   À̸ÞÀÏ : info@yjcorp.co.kr
´ë Àü Áö »ç   |   (34036) ´ëÀü½Ã À¯¼º±¸ Å×Å©³ë10·Î 29 ÆÄÅ©ÆÓ¸®½º 2Ãþ   |   ÀüÈ­ : 1577-7956 (2)   |   Æѽº : 042-932-1266   |   À̸ÞÀÏ : info@yjcorp.co.kr