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Microfluidizer Á¾ÇÕÄ«´Ù·Î±× |
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¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±× |
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INTRODUCTION
liposome Àº ¾à¹°Áú°ú ¹é½Å¹°ÁúÀ» Àü´ÞÇϴµ¥ ³Î¸® »ç¿ëµÇ°í ÀÖ´Ù.
ÀüÅëÀûÀÎ liposome Á¦Á¶´Â sovent ¸¦ ÀÌ¿ëÇÏ´Â °ÍÀε¥ ÀÌ °æ¿ì solvent ¸¦ Á¦°ÅÇÏ´Â ¸î°¡Áö °øÁ¤ÀÌ Ãß°¡µÇ´Âµ¥ ÀÎü¿¡ ´ëÇÑ À¯Çؼº°ú ¾ÈÀü¼º¿¡ ¹®Á¦°¡ µÉ ¼ö ÀÖ´Ù.
ÃÖ±Ù solvent ¸¦ »ç¿ëÇÏÁö ¾Ê´Â »õ·Î¿î ¹æ¹ýÀÌ °³¹ßµÇ¾ú´Âµ¥ ÀÌ ³»¿ëÀ» ¼Ò°³ÇÏ°íÀÚ ÇÑ´Ù. (ÆäÀÌÁö »ó´Ü ÂüÁ¶³í¹® È®ÀÎ)
ÀÌ paper ¿¡¼´Â °íÈ¿À² drug encapsulation level À» À¯ÁöÇϸ鼵µ solvent-free mass production ¹æ¹ýÀ» ¼³¸íÇÏ°í ÀÖ´Ù.
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THE PROBLEM
ÀüÅëÀûÀÎ liposome Á¦Á¶ ¹æ½ÄÀº À¯±â¿ë¸Å¸¦ »ç¿ëÇÏ´Â °ÍÀÌ´Ù.
±×·¯³ª À¯±â¿ë¸ÅÀÇ »ç¿ëÀº ¾ÈÀü¼º°ú ÀÎü À¯Çؼº ±×¸®°í ȯ°æ µîÀÇ ¹®Á¦°¡ ¸¹¾Æ ¹Ù¶÷Á÷ÇÑ °ÍÀº ¾Æ´Ï´Ù.
Á¦¾àºÐ¾ß¿¡¼ Çã¿ëµÇ´Â À¯±â¿ë¸ÅÀÇ »ç¿ë·®Àº ICH Q3 guideline ¿¡ Á¤Àǵǰí ÀÖ´Ù.
liposome Á¦Á¶¿¡ ³Î¸® »ç¿ëµÇ´Â Ŭ·Î·ÎÆ÷¸§°ú ¸Þź¿Ã °°Àº À¯±â¿ë¸Å´Â class 2 solvent ·Î¼ ICH Q3 guideline ¿¡¼´Â »ç¿ë ±ÝÁö·Î ºÐ·ùµÇ°í ÀÖ´Ù.
±×¸®°í Àúµ¶¼º À¯±â¿ë¸Å·Î ºÐ·ùµÇ´Â ¿¡Åº¿Ã °°Àº °æ¿ìµµ 5000ppm ¶Ç´Â 0.5% ÀÌ»óÀ» ÃÊ°úÇؼ´Â ¾ÈµÈ´Ù.
THE SOLUTION
ÃÖ±Ù Strathclyde ´ëÇб³ÀÇ ¿¬±¸ÁøµéÀÌ À¯±â¿ë¸Å¸¦ »ç¿ëÇÏÁö ¾Ê´Â liposome Á¦Á¶¹æ¹ýÀ» °³¹ßÇÏ¿´´Ù.
ÀÌ ¹æ¹ýÀº microfluidizer technology ¸¦ ÀÌ¿ëÇÏ´Â °ÍÀÌ´Ù.
¸ÕÀú powdered lipid ¸¦ aqueous buffer ¿¡ ³Ö°í mixing ÇÑ ÈÄ Microfluidizer M110P ¸¦ ÀÌ¿ëÇÏ¿© ó¸®ÇÏ´Â °ÍÀ¸·Î
°³·«ÀûÀÎ °øÁ¤µµ´Â ´ÙÀ½°ú °°´Ù.
Microfluidizer Àåºñ¸¦ ÀÌ¿ëÇϸé Å©±â°¡ ¸Å¿ì ¹Ì¼¼Çϸ鼵µ Å©±â°¡ ÀÏÁ¤ÇÑ liposome vesicle À» ¸¸µé ¼ö ÀÖÀ¸¸é ¶ÇÇÑ ´ë·® »ý»êµµ Æí¸®ÇÏ°Ô ÇÒ ¼ö ÀÖ´Ù´Â ÀåÁ¡ÀÌ ÀÖ´Ù.
Figure 1 - Schematic representation of liposome manufacture, buffer exchange/purification, drug loading and sterilization
THE RESULTS
Table 1 - Physicochemical characterizations of doxorubicin-loaded and amphotericin B-loaded liposomes prepared via the solvent-free method
ÀÌ·¯ÇÑ sovent-free °øÁ¤À» ÀÌ¿ëÇÏ¿© doxorubicin-loaded PEGylated liposome °ú amphotericin B-loaded liposome Á¦Á¶ÇÑ °á°ú
µÎ°³ ¸ðµÎ liposome Å©±â°¡ 100-110nm À̾úÀ¸¸ç ÀÔµµ±ÕÀϵµ¸¦ Ç¥½ÃÇÏ´Â polydispersity index (Pdi) ´Â < 0.2 ÀÌÇϷμ liposome Å©±â°¡
¸Å¿ì ±ÕÀÏÇÏ°Ô Á¦Á¶ µÇ¾ú´Ù´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
¶ÇÇÑ encapsulation efficiency ¿ª½Ã 90% ÀÌ»óÀ¸·Î È®ÀεǾú´Ù.
Figure 2 - CryoTEM image of doxorubicin-loaded liposome vesicles produced by a Microfluidizer¢ç processor using the solvent-free approach
Fig 2 ´Â ¾à¹°Áú doxorubicin ÀÌ excapsulation µÇ¾îÁø unilamellar liposome vessicle ÀÌ ¸Å¿ì ±ÕÀÏÇÑ Å©±â·Î Á¸ÀçÇÏ°í ÀÖ´Ù´Â °ÍÀ» º¸¿©ÁÖ´Â »çÁøÀÌ´Ù.
¿¬±¸ÆÀµéÀº tangetial flow filtration °ú sterile filtration °úÁ¤À» Æ÷ÇÔÇÏ´Â Àüü Á¦Á¶ °øÁ¤¿¡¼ liposome ÀÇ ÀÔÀÚÅ©±â, PDI ±×¸®°í ¾à¹°ÁúÀÇ loading »óÅ°¡
º¯ÇÏÁö ¾Ê°í ¾ÈÁ¤ÇÏ°Ô À¯ÁöµÇ¾ú´Ù°í À̾߱â ÇÑ´Ù.
¶ÇÇÑ doxorubicin-loaded liposome ÀÇ drug-release testing °á°ú 6½Ã°£ °æ°ú ÈÄ 60% ÀÇ doxorubicin release ¸¦ È®ÀÎÇÏ¿´´Ù.
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