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Home > Learning center > Stem Cell > ÀÚÁÖ ¹¯´Â Áú¹® > iPSC À¯·¡ Hepatocyte ºÐÈ­ ½Ã½ºÅÛ FAQs

iPSC À¯·¡ Hepatocyte ºÐÈ­ ½Ã½ºÅÛ FAQs

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Cellartis iPSC À¯·¡ Hepatocyte ºÐÈ­ ½Ã½ºÅÛ FAQs


Cellartis¢ç iPS Cell to Hepatocyte Differentiation System (Code Y30055)Àº functionalÇÑ hiPSC À¯·¡ hepatocyte¸¦ 3ÁÖ¸¸¿¡ Á¦ÀÛÇϱâ À§ÇÑ complete solutionÀ» Á¦°øÇÕ´Ï´Ù. ÀÌ Á¦Ç°À¸·Î hiPSC (human induced pluripotent stem cell)¿¡¼­ ºÐÈ­µÈ hepatocyte´Â drug-metabolizing enzymeÀ̳ª transporter¸¦ ÃæºÐÈ÷ ¹ßÇöÇÏ°í ÀÖ°í, À̸¦ ¹è¾ç Áß ¾ÈÁ¤ÀûÀ¸·Î À¯ÁöÇϱ⠶§¹®¿¡ primary hepatocyteÀÇ ´ëüÁ¦·Î »ç¿ëµÇ°í ÀÖ½À´Ï´Ù. ¶ÇÇÑ ÀÌ·± hiPSC À¯·¡ hepatocyte´Â »ç¶÷µé °£ÀÇ metabolic diversity¸¦ Á¤È®ÇÏ°Ô ¹Ý¿µÇÒ ¼ö Àִٴ Ư¡ÀÌ ÀÖ½À´Ï´Ù.

¾Æ·¡ÀÇ FAQ ÀÌ¿Ü Á¦Ç°¿¡ ´ëÇØ °ü·ÃµÈ ³»¿ëÀº Á¦Ç°ÆäÀÌÁö ¹× »ç¿ëÀڸŴº¾ó¿¡¼­ È®ÀÎÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù.

General FAQ


Q1. Cellartis¢ç iPS Cell to Hepatocyte Differentiation System (Code Y30055)´Â Cellartis¢ç Definitive Endoderm Diff Kit with DEF-CS (Code Y30035) + Cellartis¢ç Hepatocyte Diff Kit (Code Y30050) Á¦Ç°À» °¢°¢ ±¸¸ÅÇÏ´Â °Í°ú ¾î¶»°Ô ´Ù¸¥°¡¿ä?
Cellartis¢ç iPS Cell to Hepatocyte Differentiation System (Code Y30055)Àº Cellartis¢ç Definitive Endoderm Diff Kit with DEF-CS (Code Y30035)¿Í Cellartis¢ç Hepatocyte Diff Kit (Code Y30050)¸¦ °¢°¢ ±¸¸ÅÇÏ´Â °Í°ú °°Àº ±¸¼ºÇ°À» °¡Áö°í ÀÖ½À´Ï´Ù.

Q2. ¾î¶² Á¾·ùÀÇ pluripotent stem cellÀ» Àû¿ëÇÒ ¼ö ÀÖ³ª¿ä?
ÀÌ Á¦Ç°Àº ´ç»ç¿¡¼­ º¸À¯ÇÏ°í ÀÖ´Â 30Á¾ ÀÌ»óÀÇ ¸ðµç pluripotent stem cell line¿¡¼­ Àû¿ë °¡´ÉÇß½À´Ï´Ù. ´ç»ç¿¡¼­´Â ÆǸÅÇÏ°í ÀÖ´Â hiPSC¸¦ Á¦Ç°ÀÌ¿Ü¿¡µµ ¿¬±¸½Ç¿¡¼­ º¸À¯ÇÑ ÀÌ¿ÜÀÇ pluripotent stem cell ¿ª½Ã Àû¿ëÀÌ °¡´ÉÇÕ´Ï´Ù.

Q3. DEF-CS culture mediumÀ» Ãß°¡·Î ±¸¸ÅÇØ¾ß Çϳª¿ä?
ÇÊ¿äÇÏÁö ¾Ê½À´Ï´Ù. ÀÌ Á¦Ç°¿¡´Â º¸À¯ÇϽŠhPS cell lineÀ» DEF-CS¿¡ ÀûÀÀ½ÃÅ°°í ºÐÈ­ Àü±îÁö È®´ë¹è¾çÇϱ⿡ ÃæºÐÇÑ ¾çÀÇ DEF-CS ¹èÁö°¡ Cellartis DEF-CS 100 Culture System¿¡ Æ÷ÇԵǾî ÀÖ½À´Ï´Ù.

Q4. ÀÌ Á¦Ç°À¸·Î ¾òÀ» ¼ö ÀÖ´Â definitive endodermÀÇ ÃÖÁ¾ purity´Â ¾ó¸¶Àΰ¡¿ä?
7ÀÏÂ÷¿¡ Æò±Õ 97%ÀÇ ¼¼Æ÷°¡ Sox17-positiveÀÔ´Ï´Ù.

Q5. ÀÌ Á¦Ç°À¸·Î ¾òÀ» ¼ö ÀÖ´Â hiPSC À¯·¡ hepatocyteÀÇ ÃÖÁ¾ purity´Â ¾ó¸¶Àΰ¡¿ä?
21Â÷¿¡ Æò±Õ 94%ÀÇ ¼¼Æ÷°¡ HNF4¥á-positiveÀÔ´Ï´Ù.

¹ø¿Ü. HNF4¥á-negativeÀÇ 6% ¼¼Æ÷´Â ¾î¶² ¼¼Æ÷Àΰ¡¿ä?
ÀÌ ¼¼Æ÷ÀÇ subpopulationÀº ´Ù¸¥ endodermal ¼¼Æ÷µéÀÇ mixture·Î ÃßÁ¤µË´Ï´Ù. ´Ù¸¸ Á¤È®ÇÑ ±¸¼ºÀº ¾Ë·ÁÁ® ÀÖÁö ¾Ê½À´Ï´Ù.

Q6. ÀÌ Á¦Ç°À» »ç¶÷ ¿Ü pluripotent stem cellÀÇ ºÐÈ­¿¡ »ç¿ëÇÒ ¼ö ÀÖ³ª¿ä?
´Ù¸¥ Á¾ÀÇ stem cell·ÎºÎÅÍ´Â ÀÌ Á¦Ç°Àº º°µµ·Î Å×½ºÆ®µÈ ¹Ù°¡ ¾ø½À´Ï´Ù.

Q7. hPS cell À¯·¡ÀÇ hepatocyte¸¦ 32ÀÏ ÀÌ»ó ¹è¾çÇÏ¸é ¾î¶»°Ô µÇ³ª¿ä? hepatocyteÀÇ È°¼ºÀ̳ª morphology¸¦ ÀҰųª Á׳ª¿ä?
Hepatocyte´Â Cellartis¢ç Hepatocyte Maintenance Medium (Code Y30051)À¸·Î 10ÀϱîÁö Ãß°¡·Î ¹è¾çµÉ ¼ö ÀÖ½À´Ï´Ù (ÃÖ´ë 42ÀÏ). 42ÀÏ ÀÌÈÄ¿¡´Â hepatocyteÀÇ È°¼ºÀ» ÀÒ°í, culture vessel¿¡¼­ ¶³¾îÁö¸ç, ¼¼Æ÷ÀÇ »ç¸êÀÌ ½ÃÀ۵Ǵ µîÀÇ ¹®Á¦°¡ ¹ß»ýÇÕ´Ï´Ù.

Q8. ÀÌ Á¦Ç°À¸·Î ºÐÈ­ÇÑ hepatocyte´Â human primary hepatocyte¿Í ºñ±³Çؼ­ ¾î¶² Â÷ÀÌÁ¡ÀÌ ÀÖ³ª¿ä?
°¡Àå Å« Â÷ÀÌÁ¡Àº primary hepatocyte´Â ¹è¾ç Áß Å»ºÐÈ­ °úÁ¤À¸·Î ÀÎÇØ ºü¸£°Ô functionality°¡ °¨¼ÒÇÏ´Â ¹Ý¸é, ÀÌ Á¦Ç°À¸·Î Á¦ÀÛµÈ hepatocyte´Â ¼ö ÁÖÀÇ ¹è¾çµ¿¾È functionality°¡ À¯ÁöµÈ´Ù´Â Á¡ÀÔ´Ï´Ù. Ãß°¡·Î primary hepatocyte´Â »ç¶÷ °£ÀÇ È®¿¬ÇÑ metabolic diversity·Î ÀÎÇØ batchº°·Î donor variationÀÌ ÀÖ¾î ¿¬±¸ Áß ´Ù¸¥ batchÀÇ Á¦Ç°À» »ç¿ëÇØ¾ß ÇÏ´Â °æ¿ì ¹®Á¦°¡ ¹ß»ýÇÒ ¼ö ÀÖ½À´Ï´Ù. ÀÌ Á¦Ç°À¸·Î ºÐÈ­ÇÑ hepatocyte´Â hepatocyteÀÇ key function (e.g. LDL uptake µî)À» °¡Áö°í ÀÖÀ¸¸ç, primary hepatocyte¿Í À¯»çÇÕ´Ï´Ù. ´õ ÀÚ¼¼ÇÑ Á¤º¸´Â ´ç»çÀÇ tech note (¿µ¹®)¸¦ Âü°í ºÎŹµå¸³´Ï´Ù.

Q9. ¸î ÀÏÂ÷ºÎÅÍ hepatocyte¸¦ ½ÇÇè¿¡ »ç¿ëÇÒ ¼ö ÀÖ³ª¿ä?
ÀÌ Á¦Ç°À» »ç¿ëÇÏ´Â °æ¿ì, 21ÀÏÂ÷ºÎÅÍ hepatocyte·Î ºÐÈ­°¡ µÇ¾ú´Ù°í °£ÁÖÇÏ°í ÀÖ½À´Ï´Ù (21ÀÏ ÀÌÈÄ¿¡µµ hepatocyte´Â °è¼Ó maturationÀÌ ÁøÇàµË´Ï´Ù.). Fetal markerÀÎ AFP°¡ 21~39ÀÏÂ÷¿¡ Á¡Â÷ÀûÀ¸·Î °¨¼ÒÇϸç, 21ÀÏÂ÷ºÎÅÍ (hiPSC¿¡¼­ ºÐÈ­¸¦ ½ÃÀÛÇÑ ³¯Â¥ ±âÁØ; DE ¼¼Æ÷¿¡¼­ ºÐÈ­¸¦ ½ÃÀÛÇÑ °æ¿ì 14ÀÏÂ÷¿Í µ¿ÀÏ) hepatocyte¸¦ »ç¿ëÇÒ ¼ö ÀÖ´Ù°í »ý°¢µÇ°í ÀÖ½À´Ï´Ù. ´Ù¸¸, ¸ñÀûÇÏ´Â application°ú maturity requirement¿¡ µû¶ó ÃÖÀûÀÇ »ç¿ë ÀÏÀÚ´Â Á¶Á¤µÉ ¼ö ÀÖ½À´Ï´Ù.

Q10. ÀÌ Á¦Ç°À¸·Î ºÐÈ­µÈ hepatocyte´Â ¾î¶² Ư¡ÀÌ ÀÖ³ª¿ä?
Cellartis¢ç Enhanced hiPS-HEP v2 Kit (Code Y10133)´Â ÀÌ Á¦Ç°°ú µ¿ÀÏÇÑ ÇÁ·ÎÅäÄÝ·Î Á¦ÀÛµÈ ¼¼Æ÷À̸ç, ÀÌ Á¦Ç°À¸·Î ºÐÈ­µÈ hepatocyte´Â À§ Á¦Ç°°ú µ¿ÀÏÇÑ Æ¯Â¡ (e.g. CYP È°¼º µî)À» °¡Áú °ÍÀ¸·Î ±â´ëÇÕ´Ï´Ù. ´õ ÀÚ¼¼ÇÑ Á¤º¸´Â ´ç»çÀÇ tech note (¿µ¹®)¸¦ Âü°í ºÎŹµå¸³´Ï´Ù.

Q11. ÀÌ Á¦Ç°À¸·Î ¾ó¸¶³ª ¸¹Àº ¼¼Æ÷¸¦ ¾òÀ» ¼ö ÀÖ³ª¿ä?
´ë·« 5 x 106ÀÇ hepatocyte¸¦ ¾òÀ» ¼ö ÀÖ½À´Ï´Ù (¾à 50 cm2ÀÇ confluent hepatocytes). ÀÌ´Â 96 well plateÀÇ 150 well°ú °°°í, 24 well plate´Â 24 well°ú °°½À´Ï´Ù.

Q12. ÀÌ Á¦Ç°À¸·Î hiPSC¿¡¼­ ºÐÈ­µÈ hepatocyte´Â adult hepatocyteÀÇ marker¸¦ ¹ßÇöÇϳª¿ä?
¿¹. ÀÌ Á¦Ç°À¸·Î Á¦ÀÛµÈ hiPSC À¯·¡ÀÇ hepatocyte´Â albumin, PXR, CYP1A3, CYP2C9, and CYP3A4µîÀÇ adult hepatocyte marker¸¦ ¹ßÇöÇÕ´Ï´Ù.

Q13. CYP enzyme È°¼ºÀº ¾î¶² ¹æ¹ýÀ¸·Î Å×½ºÆ®µÇ¾ú³ª¿ä?
Specific metabolite (acetaminophen (CYP1A), 4-OH-Diclofenac (CYP2C9), OH-Bufuralol (CYP2D6), 1-OH-Midazolam (CYP3A))ÀÇ ¹ßÇöÀ» È®ÀÎÇϱâ À§ÇØ Liquid chromatography/mass spectrometry (LC/MS)¸¦ »ç¿ëÇß½À´Ï´Ù. ´õ ÀÚ¼¼ÇÑ Á¤º¸´Â ´ç»çÀÇ tech note (¿µ¹®)¸¦ Âü°í ºÎŹµå¸³´Ï´Ù.

Q14. hiPSC¿¡¼­ ºÐÈ­µÈ hepatocyte´Â drug metabolism È°¼ºÀ» º¸À̳ª¿ä?
¿¹. ÀÌ Á¦Ç°À¸·Î Á¦ÀÛµÈ hiPSC À¯·¡ÀÇ hepatocyte°¡ basal CYP enzyme È°¼ºÀ» º¸ÀÌ´Â °ÍÀ» LC/MS (CYP1A, CYP3A, CYP2C09, CYP2C19)·Î È®ÀÎÇß½À´Ï´Ù.

Q15. ÀÌ Á¦Ç°À¸·Î hiPSC¿¡¼­ ºÐÈ­µÈ hepatocyte´Â ¸ð¼¼´ã°ü (bile canaliculi) ÇüŸ¦ º¸À̳ª¿ä?
´ç»ç¿¡¼­´Â ¸ð¼¼´ã°ü (bile canaliculi)ÀÇ Çü¼ºÀ» º°µµ·Î Å×½ºÆ® ÇØ º¸Áö ¾Ê¾Ò½À´Ï´Ù. ´Ù¸¸, °í°´ÀÇ ½ÇÇè¿¡¼­ ÀÌ·¯ÇÑ Àû¿ë¼ºÀ» È®ÀÎÇÑ »ç·Ê°¡ ÀÖ½À´Ï´Ù.

Q16. ÀÌ Á¦Ç°À¸·Î hiPSC¿¡¼­ ºÐÈ­µÈ hepatocyteÀ¸·Î CYP enzyme È°¼º À¯µµ°¡ °¡´ÉÇϳª¿ä?
¿¹. ÀÌ Á¦Ç°À¸·Î Á¦ÀÛµÈ hiPSC À¯·¡ÀÇ hepatocyte´Â ¸î °¡Áö ÁÖ¿äÇÑ CYP enzymeÀ» ±âº»ÀûÀÎ ¼öÁØÀ¸·Î ¹ßÇöÇÕ´Ï´Ù. ´Ù¸¸, CYP À¯µµÀÇ °æ¿ì ³·Àº ¼öÁØÀ¸·Î¸¸ °üÂûµÇ¾ú½À´Ï´Ù.

Handling FAQs


Q1. Cellartis¢ç iPS Cell to Hepatocyte Differentiation System (Code Y30055)Àº ¾î¶»°Ô ¹è¼ÛµÇ³ª¿ä?
ÀÌ Á¦Ç°ÀÇ ±¸¼ºÇ°ÀÎ Cellartis¢ç DEF-CS 100 Culture System¿¡ ÀϺδ 4¡É (³ÃÀå¼ö¼Û)·Î ¹è¼ÛµÇ°í ³ª¸ÓÁö´Â µå¶óÀ̾ÆÀ̽º¿Í ÇÔ²² ¹è¼ÛµË´Ï´Ù. ÀÌ¿Ü ±¸¼ºÇ°ÀÎ Cellartis¢ç Definitive Endoderm Differentiation Kit¿Í Cellartis¢ç Hepatocyte Differentiation Kit´Â ¸ðµÎ µå¶óÀ̾ÆÀ̽º¿Í ÇÔ²² ¹è¼ÛµË´Ï´Ù.

Q2. DE´Â ¸î passage±îÁö À¯ÁöµÇ³ª¿ä? DE ¼¼Æ÷´Â È®´ë¹è¾çÇÒ ¼ö ÀÖ³ª¿ä?
DE ¼¼Æ÷´Â proliferative capacity¸¦ °¡Áö°í ÀÖ´Ù°í ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù. ¾Æ·¡¿Í °°ÀÌ 2013³â DE ¼¼Æ÷¸¦ È®´ë¹è¾çÇÏ°í foregut endodermÀ¸·Î ºÐÈ­½ÃÅ°´Â ÇÁ·ÎÅäÄÝÀÌ ¹ßÇ¥µÈ »ç·Ê°¡ ÀÖ½À´Ï´Ù. (Hannan et al.). ´Ù¸¸, ´ç»ç¿¡¼­´Â º°µµ·Î ´ç»ç ÇÁ·ÎÅäÄÝÀ» »ç¿ëÇØ Á¦ÀÛµÈ DE ¼¼Æ÷·Î È®´ë¹è¾ç °¡´É ¿©ºÎ¸¦ Å×½ºÆ® ÇØ º¸Áö ¾Ê¾ÒÀ¸¸ç, DE ¼¼Æ÷ÀÇ À¯Áö ¹× È®´ë¹è¾çÀ» À§ÇÑ ¹èÁö ¿ª½Ã ÆǸÅÇÏ°í ÀÖÁö ¾Ê½À´Ï´Ù.

Q3. Hepatocyte¸¦ È®´ë¹è¾ç ÇÒ ¼ö ÀÖ³ª¿ä?
¾Æ´Ï¿ä. ÀÌ Á¦Ç°À» »ç¿ëÇØ Á¦ÀÛµÈ hepatocyte´Â ¿ÏÀüÈ÷ ºÐÈ­°¡ ³¡³­ ¼¼Æ÷À̱⠶§¹®¿¡ È®´ë¹è¾çÀÌ ºÒ°¡´ÉÇÕ´Ï´Ù.

Q4. ¾î¶² culture vesselÀ» »ç¿ëÇÒ ¼ö ÀÖ³ª¿ä?
DE ºÐÈ­¸¦ À§Çؼ­´Â culture flask¸¦ »ç¿ëÇÏ´Â °ÍÀ» °¡Àå ÃßõÇÕ´Ï´Ù. À̶§, ´õ ÀÛÀº culture vesselÀÌ ÇÊ¿äÇÑ °æ¿ì 6-well plate¸¦ ÃßõÇÕ´Ï´Ù.
Hepatocyte ºÐÈ­¸¦ À§Çؼ­´Â 24-well plate ȤÀº 96-well plate¸¦ ÃßõÇÕ´Ï´Ù. À̶§, ´õ Å« culture vesselÀÌ ÇÊ¿äÇÑ °æ¿ì¿¡´Â culture flaskµµ »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù.

Q5. ½ÇÇè ÇÁ·ÎÅäÄÝ¿¡¼­ ¸ÅÀÏ ¹èÁö ±³È¯À» 12~18½Ã°£ °¡·® delay ½ÃÅ°´Â µîÀÇ ÀϺΠÆíÂ÷·Î hepatocyteÀÇ ±â´É¿¡ ¿µÇâÀÌ ÀÖÀ» ¼ö ÀÖ´Â °¡Àå Áß¿äÇÑ step Àº ¹«¾ùÀΰ¡¿ä?
ºÐÈ­ ½ÇÇèÀÇ ÃÖ´ë È¿À²À» À§Çؼ­´Â Àüü ÇÁ·ÎÅäÄÝÀ» Á¤È®ÇÏ°Ô ÁؼöÇØ¾ß ÇÕ´Ï´Ù. Hepatocyte ºÐÈ­ ÇÁ·ÎÅäÄÝ¿¡¼­ °¡Àå Áß¿äÇÑ stepÀº ´ç»çÀÇ Tips & Tricks ÆäÀÌÁö¸¦ Âü°í ºÎŹµå¸³´Ï´Ù.

Q6. Automated cell counter¸¦ cell counting¿¡ »ç¿ëÇÒ ¼ö ÀÖ³ª¿ä?
µ¿ÀÏÇÑ ¹è¾ç Á¶°Ç°ú Á¤È®ÇÑ seeding density¸¦ »ç¿ëÇÏ´Â °ÍÀÌ ¼º°øÀûÀÎ ½ÇÇèÀ» À§ÇØ ¸Å¿ì Áß¿äÇÕ´Ï´Ù. µû¶ó¼­ hiPSC¸¦ DEF-CS·Î Á¢Á¾ÇÒ ¶§ Á¤È®ÇÏ°Ô cellÀ» countingÇÏ´Â °ÍÀÌ Áß¿äÇÕ´Ï´Ù (Á¤È®ÇÑ ³»¿ëÀº ´ç»çÀÇ Tips & Tricks ÆäÀÌÁö¸¦ Âü°í ºÎŹµå¸³´Ï´Ù). À̶§, automated cell counter´Â ¼¼Æÿ¡ µû¶ó countingÀÌ ºÎÁ¤È®ÇÑ °æ¿ì°¡ ÀÖ¾î hemocytometer/Burker chamber¸¦ »ç¿ëÇÏ´Â °ÍÀ» ÃßõÇÕ´Ï´Ù. Automated cell counter¸¦ »ç¿ëÇÏ´Â °æ¿ì hemocytometer/Burker chamber¸¦ control·Î »ç¿ëÇØ ¼¼ÆÃÀ» Á¶Á¤ÇÏ´Â °ÍÀ» ÃßõÇÕ´Ï´Ù.

Q7. 3D¿¡¼­ ÀÌ Á¦Ç°À¸·Î HepatocyteÀÇ ºÐÈ­¸¦ ÁøÇàÇÒ ¼ö ÀÖ³ª¿ä?
¾Æ´Ï¿ä. ÀÌ Á¦Ç°ÀÇ ÇÁ·ÎÅäÄÝ°ú ¹èÁö´Â 2D¿¡¼­ÀÇ ºÐÈ­¿¡¸¸ Àû¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù.

Q8. DE ¼¼Æ÷¸¦ dissociation ÈÄ reseedÇÒ ¼ö ÀÖ³ª¿ä?
¿¹. DE cellÀº hepatocyte ºÐÈ­¸¦ ½ÃÀÛÇϱâ Àü¿¡ dissociation ÈÄ reseed¸¦ ÇÒ ¼ö ÀÖ½À´Ï´Ù.

Q9. DE ¼¼Æ÷¸¦ dissociationÈÄ freeze ½Ãų ¼ö ÀÖ³ª¿ä?
¿¹. »ç¿ëÀÚ ¸Å´º¾ó¿¡¼­ DE ¼¼Æ÷ÀÇ cryopreservation protocolÀ» È®ÀÎÇÒ ¼ö ÀÖ½À´Ï´Ù.