4. A study on gene editing by crispr/cas9 system in hematopoietic stem cell

Vu Thi Ha, Doan Thi Kim Phuong, Luong Thi Lan Anh, Nguyen Van Long, Bach Huy Anh, Dao Ngoc Bac, Tran Thi Huyen Trang, Nguyen Viet Trung, Tran Duc Phan

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Abstract

Hematopoietic stem cells are cells with many potential clinical applications for the treatment of blood diseases as well as cancers and autoimmune diseases treatment in general. Collecting, editing genes in stem cells, culturing, and proliferating stem cells as a premise for clinical trials are still a challenge of medicine. The Clustered Regularly Interspaced Short Palindromic Repeats and CRISPR-associated protein system is a highly efficient and promising gene editing tool for clinical application to control genes of interest. Stem cells are collected based on surface marker CD34+CD38- by flow cytometry system, targeted gene editing, mutated clone were cultured and proliferated through the aforementioned system. Result showed that ratio of hematopoietic stem cell in the cord blood cell were 0.3%. The efficiency of Spred1 editing by CRISPR/Cas9 systerm occured at the DNA and protein level. The research has successfully collected stem cells, stem cells after being edited with target genes proliferate, differentiate into independent cell lines and become a premise for further studies.

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References

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