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¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±× |
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Introduction
¿À´Ã³¯ ¼¼Æ÷¹è¾ç¿¡ ³Î¸® »ç¿ëµÇ°í ÀÖ´Â ÀÏȸ¿ë bioreactor ´Â stirred single use bioreactor, airlift bioreactor ±×¸®°í paddle mixed bioreactor µî
´Ù¾çÇÑ ÇüÅ°¡ Àִµ¥ ÀÌ Áß¿¡¼ rocking motion system ¶Ç´Â wave-induced motion (WIM) system ÀÌ °³¹ßµÈ ÈÄ 10³â ³Ñ°Ô °¡Àå ¸¹ÀÌ »ç¿ëµÇ°í ÀÖ´Ù.
ÃÖÃÊÀÇ wave bioreactor ´Â ½ºÀ§½º Wave Biotech »ç°¡ °³¹ßÇÑ BioWave À̸ç Sartorius Biotech »ç°¡ 2007³â ÀÌ È¸»ç¸¦ ÀμöÇÑ ÀÌÈÄ BIOSTAT RM (figure 1, left)
À̸§À¸·Î Àü¼¼°è·Î °ø±ÞµÇ°í ÀÖ´Ù.
ÃÖ±Ù 2¼¼´ë rocking motion bioreactor ÀÎ BIOSTAT¢ç RM II (figure 1, right) °¡ °³¹ßµÇ¾ú´Âµ¥ ÀÌ bioreactor ´Â ¸¹Àº »õ·Î¿î ±â´ÉÀ» žÀçÇÏ°í ÀÖÀ¸¸ç
drive system °ú ¿Âµµ Á¶Àý ½Ã½ºÅÛÀº ±â´ÉÀÌ ´õ¿í Çâ»óµÇ¾ú´Ù.
±Û·Î¹ú ¹ÙÀÌ¿À.Á¦¾à ±â¾÷ÀÎ Merck »çÀÇ ÀÚȸ»çÀÎ Werthenstein BioPharma »ç´Â cell cultivation °øÁ¤À» ¸Å¿ì ¸¹ÀÌ ¼öÇàÇÏ´Â ¾÷¹«»ó ÇÊ¿ä¿¡ ÀÇÇØ BIOSTAT¢ç RM II
¿¡ ´ëÇÑ ¼º´É °ËÁõÀ» ½ÃÇàÇÏ¿´´Ù.
Aim of the study
2¼¼´ë BIOSTAT¢ç RM II ÁÖ¿ä Ư¡ Áß Çϳª´Â drive system ÀÌ ´ëÆø °³¼±µÇ¾ú´Âµ¥ ±×°ÍÀº rocking platform ¿¡ toothed belt ·Î ¿¬°áµÈ servo motor ¸¦ ÀåÂøÇÏ¿´´Ù´Â °ÍÀÌ´Ù.
ÀÌ servo motor ¿¡ ÀÇÇØ rocking angle À» ¸Å¿ì Á¤¹ÐÇÏ°Ô ÀüÀÚÀûÀ¸·Î Á¶ÀýÇÏ´Â °ÍÀÌ °¡´ÉÇØ Á³À¸¸ç ¼³Á¤µÈ rocking angle ÀÌ Ç×»ó ÀÏÁ¤ÇÏ°Ô ÀçÇöµÇ¹Ç·Î
cell cultivation °á°ú°¡ Ç×»ó ÀÏÁ¤ÇÏ°Ô ³ª¿Â´Ù´Â Å« ÀåÁ¡ÀÌ ÀÖ´Ù.
¶ÇÇÑ 2¼¼´ë BIOSTAT¢ç RM II ¿¡´Â air ¿Í CO©ü mixing À» ÇØÁÖ´Â gassing module ÀÌ ÀåÂøµÇ¾îÀÖ´Ù.
Werthenstein BioPharma »ç´Â 1¼¼´ë rocking motion bioreactor ÀÎ BioWave 20 SPS ¸ðµ¨°ú 2¼¼´ëÀÎ BIOSTAT¢ç RM II ¸¦ µ¿ÀÏÇÑ Á¶°Ç¿¡¼ mammalian CHO cell À» ¹è¾çÇÏ¿©
±× ¼º´ÉÀ» ºñ±³ÇÏ¿´´Ù.
Materials
- Raw Material
  - CHO K1 cell line
  - SAFC CHO standard medium
  - Supplements such as 200mM L-Glutamine Solution etc.
- Single Use Bioreactor Systems
  - Sartorius Biotech BioWave¢ç 20 SPS
  - Sartorius Biotech BIOSTAT¢ç RM II 20 basic
- Disposable Bioreactor Bag
  - Sartorius Biotech CultiBag RM 10 L basic and RM 20 L basic
- Analytical Devices for Inprocess-Control
  - Cedex HiRes (Roche Diagnostic) : Cell Counting
  - ABL-5 (Radiometer) : pH, pCO©ü, pO©ü
  - Bioprofile Flex (Nova) : Glucose, Lactate, Glutamine, Glutamate, Ammonia
- Disposable Shake Flask (Corning)
- Biosafety Cabinets
- CO©ü Shaker Incubator (Kuhner)
Methods
Preculture : CHO seed culture ¸¦ ÇÏ¿´À¸¸ç disposable shake flask ¸¦ ÀÌ¿ëÇÏ¿© scale up À» ÇÏ¿´´Ù.
Cultivation #1
ÀÏȸ¿ë bag ÀÎ CultiBag RM 20 L basic (ÃÖ´ë working volume Àº 10 Liter) À» rocker ÀÎ BIOSTAT¢ç RM || 20 basic system ¿¡ ¼³Ä¡ÇÏ°í
cell density °¡ 4.5 x 10^5 cells/ml ÀÎ 2 Liter ¼¼Æ÷¸¦ bag ¿¡ ³Ö°í ´ÙÀ½°ú °°Àº Á¶°Ç¿¡¼ ¼¼Æ÷¹è¾çÀ» ½ÃÀÛÇÑ´Ù.
- Aeration 5% CO©ü/air gasmix, controlled by the bioreactor
- Gas flow : 100 ml/min
- Temperature : 37.0 ¡É
- Rocking angle : 8 ¡Æ
- Rocking speed : 11 - 12 rpm
2ÀÏ°£ÀÇ ¹è¾ç ÈÄ fresh media ¿Í supplements ¸¦ Ãß°¡·Î ³Ö¾î ÃÑ 8 Liter final culture volume ÀÌ µÇµµ·Ï ÇÑ´Ù (1:4 dilution). ¸ÅÀÏ ½Ã·á¸¦ äÃëÇÏ¿©
pH, metabolites, cell density ±×¸®°í viability ¸¦ ÃøÁ¤ÇÏ¸é¼ 4ÀÏ°£ Ãß°¡·Î ¹è¾çÇÑ´Ù.
Cultivation #2
2°³ÀÇ CultiBag RM 10 L basic (ÃÖ´ë working volume Àº 5 Liter) À» ÇϳªÀÇ BIOSTAT¢ç RM || 20 basic rocker ¿¡ µ¿½Ã¿¡ ¼³Ä¡ÇÏ°í cell density °¡ 5 x 10^5 cells/ml ÀÎ
2 Liter ¼¼Æ÷¸¦ 2°³ÀÇ bag ¿¡ °¢°¢ ³Ö°í cultivation #1 °ú µ¿ÀÏÇÑ Á¶°Ç¿¡¼ ¼¼Æ÷¹è¾çÀ» ½ÃÀÛÇÑ´Ù.
2ÀÏ°£ÀÇ ¹è¾ç ÈÄ fresh media ¿Í supplements ¸¦ Ãß°¡·Î ³Ö¾î °¢°¢ ÃÑ 5 Liter final culture volume ÀÌ µÇµµ·Ï ÇÑ´Ù (1:2.5 dilution).
2°³ÀÇ ¹è¾ç bag À¸·ÎºÎÅÍ ¸ÅÀÏ ½Ã·á¸¦ äÃëÇÏ¿© pH, metabolites, cell density ±×¸®°í viability ¸¦ ÃøÁ¤ÇÏ¸é¼ 4ÀÏ°£ Ãß°¡·Î ¹è¾çÇÑ´Ù
Cultivation #control batch using the previous generation bioreactor
ÇϳªÀÇ CultiBag RM 20 L basic (ÃÖ´ë working volume Àº 10 Liter) bag À» 1¼¼´ë rocking system ÀÎ BioWave 20 SPS (ÃÖ´ë working volume Àº 10 Liter) ¿¡ ¼³Ä¡ÇÏ°í
cell density °¡ 4 x 10^5 cells/ml ÀÎ 2 Liter ¼¼Æ÷¸¦ bag ¿¡ ³Ö°í cultivation #1 °ú #2 ¿¡¼ »ç¿ëÇÑ Á¶°Ç°ú µ¿ÀÏÇÑ Á¶°Ç¿¡¼ ¼¼Æ÷¹è¾çÀ» ½ÃÀÛÇÑ´Ù.
2ÀÏ°£ÀÇ ¹è¾ç ÈÄ fresh media ¿Í supplements ¸¦ Ãß°¡·Î ³Ö¾î ÃÑ 8 Liter final culture volume ÀÌ µÇµµ·Ï ÇÑ´Ù (1:4 dilution). ¸ÅÀÏ ½Ã·á¸¦ äÃëÇÏ¿©
pH, metabolites, cell density ±×¸®°í viability ¸¦ ÃøÁ¤ÇÏ¸é¼ 4ÀÏ°£ Ãß°¡·Î ¹è¾çÇÑ´Ù.
Results
ÀÌ ½ÇÇèÀÇ ¸ñÀûÀº 2¼¼´ë rocking motion bioreactor ÀÎ BIOSTAT¢ç RM II system ÀÌ 1¼¼´ë bioreactor ÀÎ BioWave 20 SPS ¿¡¼ÀÇ °á°ú µ¿ÀÏÇÏ´Ù´Â °ÍÀ» Áõ¸íÇÏ´Â °ÍÀÌ´Ù.
Graphics
Figure 1 Àº ¹è¾ç #1, #2, #control batch ÀÇ ½Ã°£¿¡ µû¸¥ viable cell density ¸¦ º¸¿©ÁÖ°í Àִµ¥ BIOSTAT¢ç RM II system À» ÀÌ¿ëÇÏ´Â #1, #2 ÀÇ cell density ´Â
BioWave 20 SPS ¸¦ ÀÌ¿ëÇÏ´Â #control batch ÀÇ cell density ¿Í °ÅÀÇ À¯»çÇÏ´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ´Ù. ±×·¡ÇÁ¿¡¼ ¾à°£ÀÇ Â÷ÀÌ°¡ ³ªÅ¸³ª´Â °ÍÀº deeding density °¡ ¾à°£ ´Ù¸£±â ¶§¹®ÀÌ´Ù.
Figure 2 ´Â #1, #2, #control batch ÀÇ ½Ã°£¿¡ µû¸¥ glucose ¿Í lactate ÀÇ ³óµµ º¯È¸¦ ³ªÅ¸³»´Âµ¥ BIOSTAT¢ç RM II system ÀÇ ¼¼Æ÷ ¹è¾ç ¼º´ÉÀº BioWave 20 SPS ¿Í °ÅÀÇ µ¿ÀÏÇÏ´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ´Ù
Conclusion
»ç¿ëÀÌ Æí¸®ÇÏ°í °£´ÜÇÏ¸ç ¶ÇÇÑ ÀçÇö¼ºÀÌ ÁÁÀº BIOSTAT RM Àº mammalian cell ÀÇ ¹è¾ç¿¡ °¡Àå ÀÌ»óÀûÀ̶ó ÇÒ ¼ö ÀÖ´Ù.
Touch screen panel À» ÅÍÄ¡ÇÏ¿© control ÇϹǷΠÁ¶ÀÛÀÌ ¸Å¿ì Æí¸®ÇÏ´Ù.
CO©ü gasmix °¡ ³»ÀåµÇ¾î ¿ÜºÎÀÇ gas mixing system ÀÇ µµ¿ò¾øÀÌ Á÷Á¢ Æí¸®ÇÏ°Ô CO©ü ¸¦ ¸Å¿ì Á¤È®ÇÏ°Ô Á¶ÀýÇÒ ¼ö ÀÖ´Ù.
ÀÌ ½ÇÇèÀ» ÅëÇØ ÃֽŠ¹öÀüÀÎ BIOSTAT¢ç RM rocking bioreactor ´Â ¼¼Æ÷¸¦ ¼ºÀå½ÃÅ°´Â ´É·Â°ú cell density ¸¦ Áõ°¡½ÃÅ°´Â ´É·ÂÀÌ ¸Å¿ì Ź¿ùÇÏ´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
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