Direct observation of hematopoietic progenitor chimerism in fetal freemartin cattle

Chromosome studies on heterosexual twins in cattle. II. Significance of sex-chromosome chimerism (XX-XY) in early diagnosis of freemartin.

Blood chimerism in a girl with Down syndrome and possible freemartin effect leading to aplasia of the Müllerian derivatives.

Cytogenetic and molecular genetic analysis in a case of sex-discordant dizygotic twins revealed blood chimerism in the girl (46,XY in blood and 47,XX, + 21 in fibroblasts) caused by feto-fetal transfusion from her healthy brother. The girl presented with Down syndrome, aplasia of the uterus and the Fallopian tubes and normal female external genitalia. We propose that the lack of Müllerian struc...

Fates of blood : Studies on stem cell differentiation potential and B lymphocyte generation in chimeric cattle

Stem cells exist in most adult tissues. Some of these somatic stem cells may be more plastic than expected, not limited to generating new cells for the tissue of their origin. While such findings suggest a revolution in regenerative medicine, they remain controversial. Most stem cell research is based on transplantation experiments of isolated and often cultured cells in mice, and the results m...

Specification of Hemato-Endothelial-Like Structures and Generation of Hematopoietic Progenitor Cells from Human Pluripotent Stem Cells

 Background and purpose: Human pluripotent stem cells (hPSCs) with the ability to differentiate into adult cells have provided a new perspective for treatment of some diseases. But, the efficiency of differentiation methods to generate hematopoietic progenitor cells (HPCs) is faced with multiple challenges. In the present study, we investigated the formation of hemato-endothelial-like structure...

Relationship between Molecular Chimerism and Graft Versus Host Disease after Allogenic Hematopoietic Stem Cell Transplantation

Background: Bone marrow transplantation (BMT) is considered as a curative therapy for a broad range of diseases. However, complications such as relapse and graft versus host disease (GVHD) may be observed following BMT. Chimerism analysis serves as a reliable indicator of transplant outcome. Complete chimerism refers to the complete replacement of hematopoietic system by donor cells, while mixe...