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Home > Learning center > RetroNectin > ½ÇÇè °¡À̵å > RetroNectin ¿À¹öºä

RetroNectin ¿À¹öºä

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RetroNectin¢ç - Viral transduction & T-cell expansion enhancer

Hematopoietic cell°ú °°Àº ÀϺΠ¼¼Æ÷´Â ³ôÀº ¿ª°¡ÀÇ lentivirus ȤÀº retrovirus ¿¡¼­µµ transductionÀÌ Àß µÇÁö ¾Ê´Â ¹®Á¦°¡ ÀÖ´Ù. ÀÌ·¯ÇÑ ³·Àº transduction È¿À²Àº viral receptorÀÇ ³·Àº ºÐÆ÷, ¼¼Æ÷¿Í ¹ÙÀÌ·¯½º °£ ¾àÇÑ »óÈ£ÀÛ¿ë, transduction inhibitorÀÇ Á¸Àç ȤÀº µ¶¼º µî¿¡ ¹Î°¨ÇÑ target ¼¼Æ÷ µî¿¡ ÀÇÇÑ ¿µÇâÀ¸·Î ÃßÁ¤µÈ´Ù. RetroNectin¢çÀ» »ç¿ëÇϸé lentivirus ȤÀº retrovirus¿Í target ¼¼Æ÷ÀÇ °Å¸®¸¦ ¹°¸®ÀûÀ¸·Î Á¼Çô (colacalization) transduction È¿À²À» ±ØÀûÀ¸·Î °³¼±ÇÒ ¼ö ÀÖ´Ù.

What is RetroNectin¢ç?
RetroNectin¢çÀº 3°³ÀÇ domain (cell-binding domain, heparin-binding domain, CS-1 sequence)À¸·Î ±¸¼ºµÈ ÀçÁ¶ÇÕ human fibronectin fragment (rFN-CH-296)À¸·Î, lentivirus/retrovirus transduction È¿À² ¶Ç´Â T cell È®´ë¹è¾ç È¿À²À» ³ôÀ̱â À§ÇØ »ç¿ëÇÒ ¼ö ÀÖ´Ù.

Á¦Ç° ¿ø¸® µ¿¿µ»ó


RetroNectin¢ç Á¦Ç° ¸®½ºÆ®

Code

Á¦Ç°¸í

¿ë·®

T100A

RetroNectin¢ç (Recombinant Human Fibronectin Fragment)

0.5 §· (0.5 §¢)

T100B

RetroNectin¢ç (Recombinant Human Fibronectin Fragment)

2.5 §· (2.5 §¢)

T110A

RetroNectin¢ç Dish (RetroNectin Pre-coated Dish, 35 mm¥õ)

10 dishes

T202

RetroNectin¢ç GMP grade (Recombinant Human Fibronectin Fragment CH-296)

2.5 §· (2.5 §¢)


How does RetroNectin¢ç work?

±×¸² 1. RetroNectin¢çÀÇ ±¸Á¶ ¹× transduction enhancement ¸ÅÄ¿´ÏÁò °¡¼³.

RetroNectin¢çÀº lentivirus ¶Ç´Â retrovirus¸¦ ÀÌ¿ëÇÑ transduction ½Ã ¹ÙÀÌ·¯½º¿Í target ¼¼Æ÷ÀÇ colocalizationÀ» µµ¿Í transduction È¿À²À» ³ô¿©ÁØ´Ù. À̶§ ¹ÙÀÌ·¯½º´Â RetroNectin¢çÀÇ H-domain¿¡ °áÇÕÇÏ°í, target ¼¼Æ÷ÀÇ integrin receptor°¡ RetroNectin¢ç°ú °áÇÕ (¼¼Æ÷ÀÇ VLA-4¿Í fibronectin CS-1 site °£ °áÇÕ ¶Ç´Â ¼¼Æ÷ÀÇ VLA-5¿Í fibronectin C-domain °£ °áÇÕ)ÇÔ¿¡ µû¶ó ¼¼Æ÷¿Í ¹ÙÀÌ·¯½º°¡ ¹°¸®ÀûÀ¸·Î °¡±î¿öÁ®¼­ VLA-4 ¶Ç´Â VLA-5 integrin receptors ¹ßÇö ¼¼Æ÷ÀÇ viral-mediated gene transfer È¿À²À» ³ôÀδÙ.
  • VLA-4 ¹ßÇö¼¼Æ÷ - T-cells, B-cells, ´ÜÇÙ¹éÇ÷±¸ (monocytes), NK cells, È£»ê±¸ (eosinophils), °ñ¼ö ´ÜÇÙ¼¼Æ÷ (bone marrow mononuclear cells), ¸²ÇÁ±¸ Àü±¸¼¼Æ÷ (lymphoid progenitor) µî
  • VLA-5 ¹ßÇö¼¼Æ÷ - Èä¼±¼¼Æ÷ (thymocytes), activated T-cells, ºñ¸¸¼¼Æ÷ (mast cells) µî

Will RetroNectin¢ç reagent work for any cell type?
RetroNectin¢çÀº À§¿¡¼­ ³ª¿Â ¿¹½Ã¿Í °°Àº VLA-4 ȤÀº VLA-5 integrinÀ» ¹ßÇöÇÏ´Â ¼¼Æ÷¿¡¼­ ¸Å¿ì È¿°úÀûÀ̸ç, target ¼¼Æ÷°¡ VLA-4 ¶Ç´Â VLA-5À» ¹ßÇöÇÏ´Â °ÍÀÌ Áß¿äÇÏ´Ù.

Cell transduction efficiency with RetroNectin reagent

¼¼Æ÷ type

Gene transfer È¿À² (%)

TF-1

53.3

HEL

28.1

NIH/3T3

80.5

CD34+ BMC*

86.9

Mouse BM MNC**

29.2

K-562

93.5

HL-60

89.4

* Bone marrow cells
** Bone marrow-derived mononuclear cells

Does RetroNectin¢ç reagent improve transduction when receptor expression is low?
¾Æ·¡ÀÇ Ç¥´Â ¼¼ Á¾·ùÀÇ stem cell (human hematopoietic stem cells; hCD34+, human adipose-derived stem cells; hADSC, human mesenchymal stem cells; hMSC)¿¡¼­ GaLV envelopeÀÇ receptorÀÎ Pit 1°ú VLA-4 integrin, VLA-5 integrinÀÇ À¯ÀüÀÚÀÇ ¹ßÇö Á¤µµ¸¦ º¸¿©ÁØ´Ù. ÀÌ·¯ÇÑ ¼¼Æ÷¿¡ ´Ù¾çÇÑ transduction enhancer¸¦ »ç¿ëÇÏ´Â ¹æ¹ý (RetroNectin¢ç, Polybrene, Protamine)ÀÇ transduction È¿À²À» ÀçÁ¶ÇÕ Çü±¤ ´Ü¹éÁúÀ» ¹ßÇöÇÏ´Â ¹ÙÀÌ·¯½º¸¦ È°¿ëÇÏ¿© ºñ±³ÇÏ¿´´Ù. ±× °á°ú RetroNectin¢çÀº GaLV envelopeÀÇ receptorÀÎ Pit 1ÀÇ ¹ßÇöÀÌ ³·Àº hCD34+ ¿Í hADSC °°Àº stem cell¿¡¼­µµ ¹ÙÀÌ·¯½ºÀÇ transduction È¿À²ÀÌ ¸Å¿ì ³ô¾Ò´Ù.

VLA-4, VLA-5, Pit 1 À¯ÀüÀÚÀÇ ¹ßÇö

 

hCD34+

hMSC

hADSC

VLA-4

+

-

+

VLA-5

+

+

+

Pit 1*

0.36

1.00

0.31

* hMSC ´ëºñ Pit 1 À¯ÀüÀÚ ¹ßÇö


±×¸² 2. Human stem cell¿¡ ´Ù¾çÇÑ transduction enhancerÀÇ retrovirus¸¦ »ç¿ëÇÑ gene transfer È¿À² ºñ±³
RetroNectin¢çÀº ´Ù¾çÇÑ envelopeÀÇ lentivirus ȤÀº retrovirus¿¡ »ç¿ëÀÌ °¡´ÉÇÏ¿© VSV-G, ecotropic, amphotropicÀÇ retrovirus ¹× lentivirus¿¡ Àû¿ëÀÌ °¡´ÉÇϸç, ÀÌ¿Ü GALV-type envelopeÀÇ retrovirus¿¡µµ Àû¿ëÀÌ °¡´ÉÇÏ´Ù.

How does the use of RetroNectin¢ç reagent avoid cell exposure to transduction inhibitors and other toxic substances from viral supernatants?
RetroNectin¢ç Àº ´ÙÀ½ÀÇ µÎ °¡Áö ¹æ¹ý Áß Çϳª¸¦ ¼±ÅÃÇؼ­ »ç¿ëÇÑ´Ù.
  • Supernatant (SN) infection method - ¼¼Æ÷¿Í virus supernatant¸¦ ¼¯¾î RetroNectin¢çÀÌ ÄÚÆÃµÈ plate¿¡ ³Ö¾îÁÖ´Â ¹æ¹ý
  • RetroNectin¢ç-bound virus (RBV) infection method - RetroNectin¢çÀÌ ÄÚÆÃµÈ plate¿¡ retrovirus ¶Ç´Â lentivirus¸¦ ¸ÕÀú °áÇÕ½ÃŲ ´ÙÀ½ virus supernatant¸¦ Á¦°ÅÇÏ°í ¼¼Æ÷¸¦ Ãß°¡ÇÏ´Â ¹æ¹ý

RBV ¹æ¹ýÀ» ÀÌ¿ëÇÒ °æ¿ì, supernatant¸¦ ¸ÕÀú Á¦°ÅÇÏ°í target ¼¼Æ÷¸¦ Ãß°¡ÇÔÀ¸·Î viral-mediated gene transductionÀ» ÀúÇØÇÏ´Â ¹ÙÀÌ·¯½ºÀÇ packaging cell À¯·¡ ´Ù¾çÇÑ ÀúÇع°Áú (proteoglycans, ¿ÜÇǴܹéÁú µî)À» Á¦°ÅÇÏ¿© transduction È¿À²À» ³ôÀÏ ¼ö ÀÖ´Ù´Â ÀåÁ¡ÀÌ ÀÖ´Ù.


±×¸² 3. RBV infection method workflow ÀÌ·¯ÇÑ ¹æ¹ýÀº ƯÈ÷ ±âÁ¸ ¹æ¹ýÀ¸·Î´Â ¾î·Á¿ü´ø ½ÇÇèÀÇ transduction È¿À²À» ±ØÀûÀ¸·Î ³ôÀδÙ.

Do you sell Clinical Grade RetroNectin¢ç reagent for ex vivo gene therapy?
RetroNectin¢ç GMP Grade´Â ÀÓ»ó½ÃÇè¿ëÀǾàÇ° (Investigational Product)À» À§ÇØ GMP °¡À̵å¶óÀÎÀ» ÁؼöÇÑ ½Ã¼³¿¡¼­ »ý»êµÈ °íÇ°Áú ½Ã¾àÀ¸·Î º°µµÀÇ ¹°Áú ÀÌÀü°è¾à (Material Transfer Agreement; MTA)¾øÀÌ ex vivo ÀÓ»ó½ÃÇè¿¡ »ç¿ëÇÒ ¼ö ÀÖ´Ù. ¶ÇÇÑ, ¹Ì±¹½ÄÇ°ÀǾ౹ (U.S. Food and Drug Administration)¿¡ Drug Master File (DMF) Á¦ÃâÀÌ ¿Ï·áµÈ Á¦Ç°À¸·Î, Àü ¼¼°èÀûÀ¸·Î 44óÀÇ ±â°ü¿¡¼­ ¾à 68°Ç ÀÌ»óÀÇ gene therapy ÀÓ»ó½ÇÇèÀÌ ÁøÇàµÇ¾ú´Ù.


±×¸² 4. À¯ÀüÀÚ Ä¡·áÁ¦ ºÐ¾ß¿¡¼­ÀÇ RetroNectin¢ç