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¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±× |
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Introduction
Organoid ±â¼úÀÇ ¹ßÀüÀº Àΰ£ ÁúȯÀÇ Áß°³ ¿¬±¸, Áúº´ ¸ðµ¨¸µ, Àç»ý ÀÇÇÐ, ±×¸®°í ¿¹ÃøÀû Á¤¹Ð Ä¡·á¿¡ »õ·Î¿î ÁöÆòÀ» ¿°í ÀÖ½À´Ï´Ù.
Organoid´Â ´Ù¾çÇÑ Áٱ⼼Æ÷ (SCs)¸¦ ÀÌ¿ëÇØ 3Â÷¿ø ECM (Extracellular Matrix) ¿¡¼ in vivo ȯ°æ°ú À¯»çÇÏ°Ô ±¸Á¶Àû, À¯ÀüÀû ´Ù¾ç¼ºÀ» °®µµ·Ï ¸¸µç 1Â÷ ¹Ì¼¼ Á¶Á÷ (Primary Macro Tissues) ÀÔ´Ï´Ù.
¶ÇÇÑ Organoid ´Â self-organizing°ú self-renewing ÀÌ °¡´ÉÇÏ´Ù´Â ÀåÁ¡ÀÌ ÀÖ¾î, ±âÁ¸ÀÇ monolayer culture ¹æ½Äº¸´Ù ´Ù¾çÇÑ ÀÀ¿ë °¡´É¼º°ú ÀáÀç·ÂÀ» °¡Áö°í ÀÖ½À´Ï´Ù.
Organoid ¸¦ ±âÃÊ ¿¬±¸, Áúº´ ¸ðµ¨¸µ, ¾à¹° ½ºÅ©¸®´× µî¿¡ È¿°úÀûÀ¸·Î Ȱ¿ëÇϱâ À§Çؼ´Â ±¸Ã¼ÀûÀÌ°í ½Å·Ú¼º ÀÖ´Â in vitro ¹è¾ç ¹× ºÐ¼® ¹æ¹ýÀÌ ÇʼöÀûÀÔ´Ï´Ù.
ÇöÀç Organoid °¡ ½Ã°£¿¡ µû¶ó Çü¼ºµÇ°í ¼ºÀåÇÏ´Â °úÁ¤À» °´°üÀûÀ¸·Î ¸ð´ÏÅ͸µÇÏ´Â ¹æ¹ýÀÌ Á¦ÇÑÀûÀ̾î¼, ¹è¾ç¿¡ µû¸¥ Ư¼º ÆÄ¾Ç°ú ÃÖÀûȰ¡ ÃæºÐÈ÷ ÀÌ·ç¾îÁöÁö ¾Ê°í ÀÖ½À´Ï´Ù.
Incucyte¢ç Live-Cell Analysis System °ú Incucyte¢ç Organoid Analysis Software Module Àº organoid ¹è¾ç °úÁ¤ÀÇ Ç¥ÁØÈ, Ư¼ºÈ ¹× ÃÖÀûȸ¦ À§ÇÑ È¿°úÀûÀÎ ÇØ°áÃ¥À» Á¦°øÇÕ´Ï´Ù.
Incucyte¢ç Live-Cell Analysis System Àº ¸í½Ã¾ß Çö¹Ì°æÀ» ÅëÇØ Matrigel dome ¾È¿¡¼ ¹è¾ç ÁßÀÎ Organoid ÀÇ ½Ç½Ã°£ µ¿¿ªÇÐÀû À̹Ì¡À» ¼öÇàÇϸç, Organoid ÀÇ Å©±â, °³¼ö, ÇüÅÂÇÐÀû ÁöÇ¥¸¦
½Ã°£¿¡ µû¶ó ÀÚµ¿À¸·Î ¼öÁýÇÕ´Ï´Ù. À̸¦ ÅëÇØ ºÐÈ ¹× ¼¼Æ÷ ¼º¼÷ Ư¼º¿¡ ´ëÇÑ ºÐ¼®ÀÌ °¡´ÉÇÕ´Ï´Ù.
Monitoring and quantifying organoid growth in Matrigel¢ç domes.
Mouse Intestinal, Pancreatic, Hepatic Organoid ´Â Matrigel dome ³»ºÎ¿¡ ³Ö¾î 24 well plate ¿¡¼ ¹è¾çÇÏ¿´°í, 6½Ã°£¸¶´Ù À̹ÌÁö¸¦ ¾ò¾ú°í, Organoid ÀÇ ¼ºÀå, ºÐÈ ¹× ¼¼Æ÷ ¼º¼÷Àº ½Ã°£¿¡ µû¸¥
Organoid ÀÇ Å©±â º¯È¸¦ ÃßÀûÇÑ °á°ú¸¦ Åä´ë·Î Incucyte Organoid Software Analysis Module À» »ç¿ëÇØ ºÐ¼®ÇÏ¿´½À´Ï´Ù.
Figure 2. Acquisition and quantification of organoid growth in Matrigel¢ç domes.
Mouse intestinal (1:3 split, 50% Matrigel), pancreatic (1:5 split, 100% Matrigel¢ç) and hepatic organoids (1:40 split, 100% Matrigel¢ç) were
embedded in Matrigel¢ç domes in 24-well plates and imaged every 6 h in an Incucyte. Brightfield (BF) images of the entire Matrigel¢ç dome (top)
show organoid maturation 6 days post seeding. Note accurate segmentation (yellow outline mask) and distinct phenotypes of mature
organoids (bottom). Time-course plots showing the individual well total BF area (¥ìm2) over time (h) demonstrate cell type specific organoid
growth. All images captured at 4X magnification. Each data point represents mean ¡¾ SEM, n = 4 wells.
Incucyte ¸¦ ÅëÇØ Matrigel dome ¾È¿¡¼ ¹è¾çÁßÀÎ Organoid ¸¦ ´ÜÀÏ ÃÊÁ¡ÀÇ 2Â÷¿ø À̹ÌÁö·Î ½Ã°¢ÈÇÒ ¼ö ÀÖ¾ú°í, È®´ëÇÑ ¸í½Ã¾ß Çö¹Ì°æ À̹ÌÁö¿Í ½Ã°£¿¡ µû¸¥ ¼¼Æ÷ÀÇ ÇüÅÂÇÐÀû Ư¡°ú
¼ºÀå ¾ç»óÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú½À´Ï´Ù (Fig 2).
¼º¼÷ÇÑ hepatic ¹× pancreatic Organoid ´Â ºü¸£°Ô Å©±â°¡ Ä¿Áö´Â °ÍÀ» °üÂûÇÒ ¼ö ÀÖ¾ú°í, Àå Organoid ´Â Å©±â´Â »ó´ëÀûÀ¸·Î ÀÛÁö¸¸ ±â°ü ƯÀ¯ÀÇ Ç¥ÇöÇüÀÌ
³ªÅ¸³ª´Â °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú½À´Ï´Ù.
Optimization and characterization of organoid cultures using real-time kinetic measurements.
Measuring proliferation to optimize growth conditions and seeding densities
Organoid seeding density¸¦ ÃÖÀûÈÇϱâ À§ÇØ, mouse hepatic Organoid¸¦ Matrigel domes¿¡ 1:10¿¡¼ 1:40±îÁö ´Ù¾çÇÑ ºñÀ²·Î seeding ÇÏ¿´½À´Ï´Ù.
¸í½Ã¾ß Çö¹Ì°æ À̹ÌÁö¿Í OrganoidÀÇ ¸éÀûÀ» Á¤·®È ÇÑ °á°ú, OrganoidÀÇ ¼ºÀå ¼Óµµ¿Í Å©±â´Â seeding ÇÑ ¼¼Æ÷ÀÇ ¼ö¿¡ ºñ·ÊÇÏ´Â °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú½À´Ï´Ù (Fig 3).
Figure 3. Determine optimal conditions for maximal organoid expansion.
Mouse hepatic organoids were embedded in Matrigel¢ç domes (100%) in 48-well plates at multiple seeding densities. BF Images (5 d post seeding)
and time-courses of individual well area and count demonstrate density-dependent organoid growth. Data were collected over 168 h at 6 h intervals.
All images captured at 4X magnification. Each data point represents mean ¡¾ SEM, n=14 wells.
Measuring morphological features to define optimal organoid maturation phase
Organoid passaging À» ÃÖÀûÈ Çϱâ À§ÇØ, Mouse hepatic Organoid ¸¦ Martrigel domes ¿¡¼ 8Àϰ£ ¹è¾çÇϸç Incucyte·Î °üÂûÇÏ¿´½À´Ï´Ù.
Seeding 2ÀÏ ÈÄ ´ëºÎºÐÀÇ Organoid ´Â Á÷°æÀÌ 100 ¥ìm ¹Ì¸¸À̾ú°í, lumen ÀÌ ¶Ñ·ÇÀÌ Çü¼ºµÈ °ÍÀ» ¸í½Ã¾ß Çö¹Ì°æ À̹ÌÁö¸¦ ÅëÇØ °üÂûÇÒ ¼ö ÀÖ¾ú½À´Ï´Ù.
¶ÇÇÑ, seeding ÈÄ 24½Ã°£ À̳»¿¡ Organoid °¡ Çü¼ºµÇ°í, ½Ã°£ÀÌ Áö³¯¼ö·Ï Æí½É·ü (eccentricity) ÀÌ °¨¼ÒÇÏ´Â °ÍÀ» °üÂûÇÒ ¼ö ÀÖ¾ú½À´Ï´Ù.
Seeding ÈÄ 4ÀÏ~5ÀÏÀÌ Áö³ ½ÃÁ¡¿¡¼ Organoid ´Â ÃÖ´ë Å©±â¿¡ µµ´ÞÇß°í, µÕ±Ù ÇüŸ¦ Çü¼ºÇÑ °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
6ÀÏÀÌ Áö³ µÚ Organoid°¡ ºØ±«Çϸç Á¡Â÷ ¾îµÎ¿öÁö´Â °ÍÀ» °üÂûÇÒ ¼ö ÀÖ¾ú´Ù.
À̸¦ ÅëÇØ Organoid °è´ë ¹è¾çÀÇ ÃÖÀû ½ÃÁ¡Àº 4ÀÏ~5ÀÏ »çÀ̶ó´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú½À´Ï´Ù (Fig 4).
Figure 4. Define cell-type specific passage frequency using integrated morphology metrics.
Hepatic organoids were embedded in 100% Matrigel¢ç domes (1:10 split) in 24-well plates. Tracking changes in organoid eccentricity (object roundness) and
darkness (object brightness) enabled rapid assessment of optimal culture passage periods. Images (day 6) and time-course data demonstrate that organoids
that reached maximal size collapsed (increased eccentricity) and darkened (increased darkness). Data were collected over 192 h at 6 h intervals.
All images captured at 4x magnification. Each data point represents mean ¡¾ SEM, n=6 wells.
Tracking organoid differentiation and growth efficiency through passages
Passage ¿¡ µû¸¥ intestinal Organoid ÀÇ ¼ºÀå È¿À²À» Æò°¡ÇÏ¿´½À´Ï´Ù.
Seeding µÈ ¼¼Æ÷ÀÇ ¼ö°¡ °°´Ù¸é, intestinal Organoid ´Â passage ¿¡ °ü°è ¾øÀÌ À¯»çÇÑ °³¼ö, ¸éÁ¢, Æí½É·ü, ¾ÏÈæµµ (darkness) °¡ ÃøÁ¤ µÇ´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú½À´Ï´Ù (Fig 5).
¶ÇÇÑ, intestinal Organoid ƯÀ¯ÀÇ Ç¥ÇöÇü ¿ª½Ã passage ¿¡ °ü°è ¾øÀÌ °üÂû µÇ¾ú½À´Ï´Ù.
Figure 5. Assess growth and differentiation efficiency of organoids across multiple passages.
Intestinal organoids were embedded in 50% Matrigel¢ç domes (1:3 split, 24-well plate) over multiple passages and evaluated for growth and differentiation consistency over time.
BF images (7 days post seeding) and corresponding plots show comparable morphology and growth across passages.
Data were collected over 192 h at 6 h intervals. All images captured at 4X magnification.
Each datapoint represents mean ¡¾ SEM, n=6 wells.
Conclusions
À̹ø Application Note ¿¡¼´Â Incucyte¢ç Live-Cell Analysis System °ú Incucyte¢ç Organoid Analysis Software Module À» ÅëÇØ Organoid Çü¼º°ú ¼ºÀåÀ» µ¿¿ªÇÐÀûÀ¸·Î Æò°¡ÇÏ¿´½À´Ï´Ù.
À̸¦ ÅëÇØ ´ÙÀ½À» ÀÔÁõÇÒ ¼ö ÀÖ¾ú½À´Ï´Ù.
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24 well, 48 well plate ¸ðµÎ¿¡¼ Matrigel domes ¿¡ ¹è¾çÇÑ Organoid ¸¦ ºÐ¼®ÇÒ ¼ö ÀÖ´Â ´É·Â. |
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Real-time, label-free ·Î ¹è¾ç Á¶°Ç°ú ¹æ¹ýÀ» ÃÖÀûÈÇÏ´Â ¹æ¹ý. |
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ÇüÅÂÇÐÀû ¸Å°³º¯¼ö¸¦ ±â¹ÝÀ¸·Î Organoid ÀÇ Passaging ¶Ç´Â extension ÀÇ ÃÖÀû ½ÃÁ¡À» °áÁ¤. |
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Àå±â°£ °è´ë ¹è¾çÀ» À̾î¿Â Organoid ÀÇ »óŸ¦ Æò°¡Çϴµ¥ Ȱ¿ëµÉ ¼ö ÀÖÀ½. |
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