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¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±×
¸®½ºÆ®µ¹¾Æ°¡±â | Application Note ¿ø¹®º¸±â |
(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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