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| We tested the viability of hES and hiPS cells plated on Matrigel-coated plates in mTeSR at clonal density, which is an initial critical hurdle in the establishment of individual clonal lines. |
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Description: Endothelial cell growth factor (ECGF) is an extract of bovine brain containing growth promoting factors for vascular endothelial cells of mammalian origin. ECGF has also been reported to be beneficial as a media supplement for the fusion and growth of hybridoma cells in monoclonal antibody production. Endothelial cell growth factor is prepared using a modification of the method of Maciag, et al. (1979) lyophilized from a sterile solution containing NaCl and streptomycin sulfate. Endothelial cells from human umbilical vein (HUVEC) can be established as primary cultures by traditional methods. The serial propagation of these cells has proved to be difficult. The long-term propagation of these cells in vitro can be achieved with an extract prepared from bovine brain. The introduction of a fibronectin or collagen matrix to the cell culture system allows to cultivate endothelial cells at clonal densities. With ECGF, the FCS requirement can be reduced. Heparin potentiates the mitogenic activity of crude preparations of ECGF. ECGF has also been reported to eliminate the need for feeder cells in the clonal growth of hybridomas and other cell types. ÃèÊö: ÄÚÆ¤Ï¸°ûÉú³¤Òò×Ó£¨ECGF£©ÊÇÒ»ÖÖ´ÓÅ£´óÄÔÖÐÌáÈ¡³öÀ´µÄ£¬º¬ÓÐÄܹ»´Ù½ø²¸È鶯ÎïѪ¹ÜÄÚÆ¤Ï¸°ûÉú³¤µÄÒò×Ó¡£ Ò²Óб¨µÀ³ÆECGF¶ÔÓÃÓÚµ¥¿Ë¡¿¹ÌåÉú²úµÄÔÓ½»Áöϸ°ûµÄÈںϺÍÉú³¤ÓÐÒ»¶¨µÄ¸¨Öú×÷Óá£ÖƱ¸ÄÚÆ¤Ï¸°ûÉú³¤Òò×ӵķ½·¨ÊǸù¾ÝMaciagµÈµÄ·½·¨£¨1979£©½øÐиĽøµÄ£¬ÊÇ´Óº¬ÓÐÂÈ»¯ÄƺÍÁòËáÁ´Ã¹ËصÄÃð¾úÈÜÒºÖж³¸É¶øÀ´¡£ ÈËÆê¾²ÂöÄÚÆ¤Ï¸°û£¨HUVEC£©¿ÉÒÔÓô«Í³µÄ·½·¨½øÐÐÔ´úÅàÑø¡£µ«ÕâЩϸ°ûµÄ³ÖÐøÔöÖ³ÅàÑøÒѱ»Ö¤Ã÷ÊǷdz£À§Äѵġ£Å£ÄÔÖеÄÌáÈ¡Îï¿ÉÒÔ±£Ö¤ÕâЩϸ°ûµÄ³¤ÆÚÌåÍâÔöÖ³¡£ÔÚϸ°ûÅàÑøÏµÍ³ÖмÓÈëÏËάÁ¬½Óµ°°×»ò½ºÔ»ùÖÊ¿ÉÒÔÅàÑøÄÚÆ¤Ï¸°û¡£µ±¼ÓÈëECGFºó£¬ÔÚϸ°ûÅàÑøÒºÖмÓÈë̥ţѪÇåµÄÁ¿¿ÉÒÔ¼õÉÙ¡£¸ÎËØ¿ÉÒÔÌá¸ßECGFÓÐË¿·ÖÁѵĻîÐÔ¡£ Ò²Óб¨µÀ³ÆÔÚÔÓ½»ÁöºÍÆäËûÀàÐÍϸ°ûµÄÔöֳʱ£¬¼ÓÈëECGFºó¿ÉÒÔ²»ÓüÓÈëËÇÑø²ãϸ°û¡£ ÒÔÉÏÊÇÍøÉÏµÄÆ½ÐÐÎı¾£¬µ«Î´ÄÜÖ¸³ö¾ßÌåµÄÒâ˼¡£ ¶Ô·ÖÑ¡µÄ£¨Ö×Áö£©¸Éϸ°û·ÖÑ¡ºó£¬½øÐÐÏ¡ÊÍ£¬Ï¡Ê͵½Ã¿¿×Ò»¸öϸ°û¡£ÏȼÆÊý£¬±ÈÈçÿºÁÉý1000¸ö£¬ÄÇÄã¾ÍÓÃ96¿×°å£¬Ã¿´Îÿ¸ö¿×°å¼Ó1ulϸ°ûÐüÒº£¬½øÐб¶±ÈÏ¡ÊÍ£¬È»ºóÔÙÔÚ¾µÏ¹۲ìÿ¸ö¿×£¬Ö»ÓÐÒ»¸öϸ°ûµÄÄǸö¿×ÓñÊȦÆðÀ´¾ÍÐÐÁË£¬È»ºó½øÐÐÅàÑø¡£ ÎÒÀí½â¾ÍÕâÒâ˼£¡ |

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