As described recently in Nature Communications, Michigan Medicine researchers have developed a new variant of the much-touted tool CRISPR-Cas9, which improves both safety and effectiveness when editing DNA.
Today, safety and efficacy continue to hold CRISPR-Cas9 gene targeting back from its full clinical potential.
The new CRISPR-Cas9 variant improves efficiency when inserting a gene or DNA fragment to a precise location in the genome, known as ¡°knocking in.¡± It also reduces the rate of unintended insertions or deletions of base pairs, known as ¡°indels,¡± that often happen while gene editing.
The new variant is called ¡°meticulous integration Cas9,¡± or miCas9, to reflect its extraordinary capacity to enable maximum integration and create minimal indels.
The team previously reported discoveries about Cas9 genome editing techniques in 2014 and they reported beneficial effects of a RAD51 agonist, called RS-1, in gene editing in 2016.
References
Nature Communications, November 2020, ¡°MiCas9 Increases Large Size Gene Knock-in Rates and Reduces Undesirable On-target and Off-target Indel Edits,¡± by Linyuan Ma, et al. © 2020 Springer Nature Limited. All rights reserved.
To view or purchase this article, please visit:
MiCas9 increases large size gene knock-in rates and reduces undesirable on-target and off-target indel edits chr(124)_pipe Nature Communications
ÃÖ±Ù ¡¸³×ÀÌó Ä¿¹Â´ÏÄÉÀÌ¼Ç Nature Communications¡¹¿¡ µû¸£¸é ¹Ì½Ã°Ç ÀÇ°ú´ëÇÐ(Michigan Medicine) ¿¬±¸ÁøÀÌ DNA ÆíÁý½Ã ¾ÈÀü¼º°ú È¿À²¼ºÀ» ¸ðµÎ Çâ»ó½ÃÅ°´Â ÀαâÀÖ´Â µµ±¸ Å©¸®½ºÆÛ(CRISPR-Cas9) À¯ÀüÀÚ °¡À§ÀÇ »õ·Î¿î À¯ÇüÀ» °³¹ßÇß´Ù.
¿À´Ã³¯ Å©¸®½ºÆÛ À¯ÀüÀÚ °¡À§ÀÇ ¾ÈÀü¼º°ú È¿´ÉÀº °è¼Ó À¯ÁöµÇ°í Àִµ¥, À¯ÀüÀÚ Ç¥ÀûÈ¿¡ ÀÖ¾î ±× ÀáÀç·ÂÀÌ »ó´çÇϱ⠶§¹®ÀÌ´Ù.
´õ±º´Ù³ª À̹ø¿¡ °³¹ßµÈ ÀÌ »õ·Î¿î CRISPR-Cas9 À¯ÇüÀº À¯ÀüÀÚ ¶Ç´Â DNA ´ÜÆíÀ» Á¤È®ÇÑ À§Ä¡¿¡ »ðÀÔ ÇÒ ¶§ - À̸¦ ¼ÒÀ§ ¡®³ëÅ·ÀÎ(knocking in)¡¯À̶ó ÇÑ´Ù - ±× È¿À²¼ºÀ» Çâ»ó½ÃÄ×´Ù. ¶ÇÇÑ À¯ÀüÀÚ ÆíÁý Áß¿¡ Á¾Á¾ ¹ß»ýÇÏ´Â Àε¨(indel)·Î ¾Ë·ÁÁø ¡®¿°±â½ÖÀÇ ÀǵµÇÏÁö ¾ÊÀº »ðÀÔ ¶Ç´Â Á¦°Å¡¯ÀÇ ºñÀ²À» °¨¼Ò½ÃÄ×´Ù.
ÀÌ »õ·Î¿î À¯ÇüÀÇ Å©¸®½ºÆÛ À¯ÀüÀÚ °¡À§´Â ¡®¼¶¼¼ÇÑ ÅëÇÕ Cas9¡¯ ¶Ç´Â ¡®miCas9¡¯À¸·Î ºÒ¸®°í, À¯ÀüÀÚ ÅëÇÕ¿¡ À־ ÃÖ´ëÇÑÀÇ È¿°ú¸¦, ±×·¯¸é¼µµ Àε¨Àº ÃÖ¼ÒÈ´Â ³î¶ó¿î ´É·ÂÀ» º¸¿©ÁÖ°í ÀÖ´Ù.
¿¬±¸ÁøÀº 2014³â Cas9 °Ô³ð ÆíÁý ±â¼ú¿¡ ´ëÇÑ ¹ß°ßÀ» º¸°íÇÑ ¹Ù ÀÖÀ¸¸ç, 2016³â À¯ÀüÀÚ ÆíÁý¿¡¼ RS-1À̶ó´Â RAD51 ÀÛ¿ëÁ¦ÀÇ À¯ÀÍÇÑ È¿°úµµ ¹ß°ßÇÏ¿© Çа迡 ¹ßÇ¥ÇÑ ¹Ù°¡ ¹Ù°¡ ÀÖ´Ù.
- Nature Communications, November 2020, ¡°MiCas9 Increases Large Size Gene Knock-in Rates and Reduces Undesirable On-target and Off-target Indel Edits,¡± by Linyuan Ma, et al. © 2020 Springer Nature Limited. All rights reserved.
To view or purchase this article, please visit:
MiCas9 increases large size gene knock-in rates and reduces undesirable on-target and off-target indel edits chr(124)_pipe Nature Communications