Journal
CLONING AND STEM CELLS
Volume 11, Issue 2, Pages 281-285Publisher
MARY ANN LIEBERT, INC
DOI: 10.1089/clo.2008.0067
Keywords
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Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Ministry of Health, Labor and Welfare of Japan
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In the present study, we investigated the suitability of two methods for the transplantation of cells into ovine fetuses. The first method was an ultrasound-guided cell injection via the uterine wall. The second involved hysterotomic cell injection with an incision in the uterine wall exposing the amnion. Monkey embryonic stem (ES) cell-derived hematopoietic cells were used as donor cells. After transplantation, the abortion rate associated with the hysterotomic injection method was significantly higher than that of the ultrasound-guided injection method (8/13 versus 4/24; P < 0.01). The fetuses were delivered to examine the engraftment of transplanted monkey hematopoietic cells. Monkey cells were detected in one of the five animals (20%) in the hysterotomic injection group, and 14 of 20 animals (70%, P < 0.05) in the ultrasound-guided injection group. Therefore, the ultrasound-guided method was effectively shown to be minimally invasive for in utero transplantation and can produce a higher rate of engraftment for transplanted cells.
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