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¸®½ºÆ®µ¹¾Æ°¡±â |
Application Note ¿ø¹®º¸±â | |
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(ÂüÁ¶³í¹®) A Nanostructured Lipid Carrier for Delivery of a Replicating Viral RNA Provides Single, Low-Dose Protection against Zika.  
Jesse H. Erasmus, et al. Molecular Therapy Volume 26, ISSUE 10, P2507-2522, October 03, 2018 |
INTRODUCTION
Â÷¼¼´ë RNA ¹é½ÅÀº 2000³â´ë ÃʺÎÅÍ ¹é½Å¿¬±¸ÀÇ ÁÖ°ü½É»ç¿´´Ù.
ÀÌ´Â antigen ÀÇ »ý»êÀÌ º¹ÀâÇÑ »ý»ê°úÁ¤À» °ÅÄ¡Áö ¾Ê±â ¶§¹®¿¡ ÆÒµ¥¹Í°ú °°Àº »óȲ¿¡¼´Â ƯÈ÷ À¯¿ëÇÑ tool ÀÌ´Ù.
±×·¯³ª RNS ÀÚü´Â ¹é½ÅÀ¸·Î¼ ¸Å¿ì ºÒ¾ÈÁ¤Çϱ⠶§¹®¿¡ Ưº°ÇÑ delivery system ÀÌ ÇÊ¿äÇѵ¥ À̸¦ À§ÇØ
´Ù¾çÇÑ ¹ÙÀÌ·¯½º¼º ¹éÅÍ¿Í ºñ¹ÙÀÌ·¯½º¼º nano particle À» carrier ·Î È°¿ëÇϱâ À§ÇÑ ¿¬±¸°¡ ¸¹ÀÌ ÀÌ·ç¾îÁ³´Ù.
Lipid nanoparticles (LNP), cationic nanoemulsions (CNE) ±×¸®°í nanostructured lipid carriers (NLC) µîÀÌ
°¡Àå È°¹ßÈ÷ ¿¬±¸°¡ ÀÌ·ç¾îÁ³À¸¸ç °¡Àå °¡´É¼ºÀÌ À־ÀδÙ.
RNA ºÐÀÚ¸¦ delivering Çϱâ À§ÇØ nanoparticle À» ÀÌ¿ëÇÒ °æ¿ì¿¡´Â in-situ encapsulation °ú post adsorption
µÎ°¡Áö ¹æ¹ýÀÌ ¸¹ÀÌ »ç¿ëµÈ´Ù. ÈÄÀÚÀÇ °æ¿ì¿¡´Â two-step À¸·Î ÁÖ·Î ÀÌ·ç¾îÁö¸ç ´ÙÀ½ ³í¹®¿¡¼ ÀÚ¼¼È÷ ¼Ò°³µÇ¾îÀÖ´Ù.
A Nanostructured Lipid Carrier for Delivery of a Replicating Viral RNA Provides Single, Low-Dose Protection against Zika.
ÀÌ application note ¿¡¼´Â ÀÌ ³í¹®À» ¿ä¾àÇÏ°í ¿Ö ÀÌ ¹æ¹ýÀÌ ¹é½Å ´ë·®»ý»ê°ú ÇöÀçÀÇ ÆÒµ¥¹Í »óȲ¿¡
´ëÀÀÇϱ⿡ °¡Àå ÀûÇÕÇÑ Áö¸¦ ¼Ò°³ÇÏ°íÀÚ ÇÑ´Ù.
RNA VACCINES
ÀüÅëÀûÀÎ ¹ÙÀÌ·¯½º ¹é½ÅÀº °è¶õ¿¡¼ ¹è¾çÇÏ´Â ¹æ½ÄÀÌ°í 2¼¼´ë ¹é½ÅÀº subunit protein ¹é½ÅÀÌ°í ÁÖ·Î ¹ÚÅ׸®¾Æ¼¼Æ÷¿¡¼ ¹è¾çµÈ´Ù.
ÀÌ·¯ÇÑ »ý»ê ¹æ¹ýµéÀº »ý»ê ¹× ÃßÃâ °øÁ¤À» optimization ÇϱⰡ ¾î·Æ°í ¶Ç validation Çϴµ¥ ±â°£ÀÌ ¸¹ÀÌ ¼Ò¿äµÈ´Ù.
¹Ý¸é ÇÙ»ê ±â¹ÝÀÇ ¹é½ÅµéÀº ÈξÀ ºü¸¥ ½Ã°£¿¡ °³¹ß »ý»êÇÒ ¼ö ÀÖ´Ù´Â ÀåÁ¡ÀÌ ÀÖÀ¸³ª ÀÌ ¹é½Å¹°ÁúµéÀº ÀÎü³»¿¡¼
¸Å¿ì ºÒ¾ÈÁ¤ÇϹǷΠÀÌ ¹é½Å¹°ÁúÀ» ÀÎü³»·Î ¾ÈÀüÇÏ°Ô Àü´ÞÇÏ´Â delivery system °³¹ßÀÌ ¸Å¿ì Áß¿äÇÏ´Ù.
DELIVERY OF RNA WITH NANOSTRUCTURED LIPID CARRIERS (NLCs)
LNPs, CNEs, ±×¸®°í NLCs ¿Í °°Àº ´Ù¾çÇÑ lipid-based nanoformulations µéÀº direct encapsulation ¶Ç´Â post adsorption
¹æ¹ý Áß Çϳª¸¦ ÀÌ¿ëÇÏ¿© RNA delivery ¿¡ »ç¿ëµÇ°í ÀÖ´Ù.
encapsulation ¹æ¹ýÀº LNP °¡ ¹é½Å¹°Áú°ú ÇÔ²² µ¿ÀÏÇÑ vial ¿¡¼ Á¦Á¶µÇ´Âµ¥ ÀÌ·Î ÀÎÇØ formulation ÀÇ stability ¿Í scalability ¿¡ ¹®Á¦°¡ ÀÖ´Ù.
adsorption ¹æ¹ýÀº delivery system À» ´ë·®À¸·Î »ý»êÇÒ ¼ö ÀÖ°í ÆÒµ¥¹ÍÀ» ´ëºñÇÏ¿© ÀúÀåÇÒ ¼ö µµ ÀÖ´Ù.
pathogen ÀÌ Æ¯Á¤µÇ¾îÁö¸é RNA antigen À» °³¹ßÇÏ¿© ´ë·®À¸·Î ¸¸µé ¼ö ÀÖ´Ù.
±×¸®°í ³ª¼ RNA ¸¦ NLC formulation ¿¡ ³Ö°ÔµÇ¸é RNA ´Â particle Ç¥¸é¿¡ binding ÇÏ°Ô µÈ´Ù.
ÀÌ·¯ÇÑ two-step ¹æ¹ýÀº LNP ¹æ¹ý¿¡ ºñÇØ ´õ ´Ù¾çÇÑ ´ë¾ÈÀÌ µÉ ¼ö ÀÖÀ¸¸ç ÆÒµ¥¹Í »óȲ¿¡ ½Å¼ÓÈ÷ ´ëÀÀÇÒ ¼ö ÀÖ´Â
°¡Àå ÀÌ»óÀûÀÎ ¹æ¹ýÀÌ´Ù.
ÀúÀÚ´Â Zika ¹é½ÅÀÇ delivery system À¸·Î¼ Nonstructured Lipid Carrier (NLC) ¸¦ Ç÷§ÆûÀ¸·Î °³¹ßÇÏ¿´´Ù.
NLC FORMULATION
ÀÌ ³í¹®¿¡¼ °³¹ßµÈ NLC ´Â ´ÙÀ½ ¼ººÐÀ¸·Î ±¸¼ºµÈ hybrid formulation ÀÌ´Ù.
- ½ºÄí¾Ë·» ¿ÀÀÏ : NLC ÀÇ core ·Î ÀÛ¿ëÇϸç squalene-based emulsion Á¦Á¶¿¡ ¼ö½Ê³â°£ »ç¿ëµÇ¾î ¿Â
Microfluidizer Àåºñ¸¦ ÀÌ¿ëÇÏ¿© Á¦Á¶ÇÏ¿´´Ù.
- Dynasan 114 : solid phase lipid ·Î¼ ÀÎü³»¿¡¼ circulation time À» Áõ´ë½ÃÅ°´Â ±â´ÉÀ» ÇÑ´Ù.
- Span 60 & Tween 80 : nanoparticle À» ¾ÈÁ¤È½ÃÅ°°í ±×°ÍÀÇ bioavailability ¸¦ Çâ»ó½ÃÅ°´Â ¿ªÇÒÀ» ÇÑ´Ù.
- DOTAP (cationic phospolipid Dioleoyl-3-trimethylammonium propane) : ¾çÀüÇϸ¦ ¶è RNA °¡ Àß binding ÇÒ ¼ö ÀÖ°Ô ¸¸µå´Â ±â´É.
ÀÌ hybrid core formulation Àº nanoparticle ÀÇ stability °¡ ¸Å¿ì Ź¿ùÇÏ¿© Á¦Á¶°¡ ¸Å¿ì ¿ëÀÌÇÏ´Ù.
NLC FABRICATION
nanoparticle Á¦Á¶¿¡¼ °¡Àå ÀÌ»óÀûÀÎ ¹æ¹ýÀº ´ÙÀ½°ú °°Àº Ư¼ºÀ» °¡Áö°í ÀÖ¾î¾ß ÇÑ´Ù.
- ¿øÇÏ´Â ÀÔÀÚÅ©±â¸¦ ½±°Ô ¸¸µé¼ö ÀÖ¾î¾ß ÇÑ´Ù.
- stability °¡ Ź¿ùÇØ¾ß ÇÏ´Ù.
- filter ¸¦ ÇÏ¿´À» ¶§ ¸ê±Õ󸮰¡ °¡´ÉÇØ¾ß ÇÑ´Ù.
- ´Ù¾çÇÑ »ý¸®ÈÇÐÀû Ư¼ºÀ» °¡Áø NLC Á¦Á¶°¡ °¡´ÉÇØ¾ß ÇÑ´Ù.
- ´ë·®»ý»êÀÌ °¡´ÉÇØ¾ß ÇÏ´Ù.
Microfluidizer¢ç Technology ´Â ÀÌ·¯ÇÑ ¸ðµç ¿ä±¸Á¶°ÇÀ» ¸ðµÎ ÃæÁ·½Ãų ¼ö ÀÖ´Ù.
À̹ø ¿¬±¸¿¡¼ ¸ðµç NLC formulation Àº M110P Microfluidizer¢ç ¸¦ ÀÌ¿ëÇÏ¿© Á¦À۵ǾúÀ¸¸ç
30,000psi ¿¡¼ 5 pass Á¶°ÇÀ» ÀÌ¿ëÇÏ¿´´Ù.
Figure 1 - M110P Microfluidizer processor
RESULTS
¸ðµç sample ¿¡¼ Æò±ÕÀÔÀÚÅ©±â°¡ 100nm ÀÌÇÏÀÎ ¸Å¿ì ±ÕÀÏÇÑ NLC ¸¦ ±¸ÇÏ¿´À¸¸ç filter ¸¦ ÀÌ¿ëÇÏ¿© ¸ê±ÕÇÏ¿´´Ù.
self-replicating RNA-encoding Zika virus antigent À» ¸¸µç ÈÄ ÀÌ RNA ¸¦ final NLC ¿¡ adding ÇÏ¿´´Ù.
Figure 2 - Schematic representation of RNA surface adsorbed to NLC nanoparticle post-admixture
NLC Á¦Á¶ °øÁ¤ÀÌ È®¸³µÈ ÈÄ Á¶¼º ¼ººÐµéÀÇ loading capacity ¿Í safety & immunogenecity µéÀ» optimization ÇÏ¿´´Âµ¥
10mg/ml ³óµµ¿¡¼ RNA binding ÀÌ 100% ÀÌ·ç¾îÁ³´Ù.
ÀÌ article Àº 10ng ÀÇ ¾ÆÁÖ ±Ø¼Ò·®ÀÇ RNA ¸¦ ÇÔÀ¯ÇÑ dose single ¿¡ ÀÇÇؼµµ Zika virus °¨¿°À» ¹æÁöÇÒ ¼ö ÀÖ´Â
ÃæºÐÇÑ ¸é¿ª·ÂÀ» À¯µµÇÒ ¼ö ÀÖ´Ù´Â °ÍÀ» º¸¿©ÁÖ¾ú´Ù.
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