integument
• mice exhibit a failure of nerve-vessel alignment in developing limb skin compared with wild-type mice
• however, vascular density is normal
|
mortality/aging
• about half of the homozygous embryos die between E15.5 and E18.5
|
• homozygotes die within 1 hour of birth
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cardiovascular system
• mice exhibit a failure of nerve-vessel alignment in developing limb skin compared with wild-type mice
• however, vascular density is normal
|
• the large vessels of the stomach arising from the mesenchymal vessels are absent
• the small vascular network that surrounds the stomach and the vasculature of other organs are normal
|
• disorganized branching patterns in developing limb skin
|
• reduced smooth muscle cell coverage of small diameter branched vessels
• however, coverage of large diameter veins is normal
|
• homozygotes have a defect in the membranous portion of the ventricular septum
|
hematopoietic system
• pro-B cell numbers are severely reduced in the fetal livers of mutants compared to wild-type mice
|
• at E18.5 in the fetal liver, myelopoiesis is reduced identical to the phenotype in Cxcr4tm1Qma homozygotes
• at E18.5, a marked reduction in myeloid cells is also seen in the spleen and myeloid cells are virtually absent from the bone marrow
|
• on E17.5 hematopoietic cells are virtually absent from the bone marrow
(J:34750)
• B-cell lymphopoiesis is also absent in the bone marrow
(J:34750)
• at E18.5, myeloid cells are virtually absent from the bone marrow
(J:49070)
|
• by E16.5 pre-B cell numbers are severely reduced in the fetal livers of mutants compared to wild-type mice
|
nervous system
N |
• mice exhibit normal innervation accompanied by migrating Schwann cells
|
• at E18.5, the cerebellum is disorganized
|
• at E18.5, the external granule cell layer is attenuated
|
immune system
• pro-B cell numbers are severely reduced in the fetal livers of mutants compared to wild-type mice
|
• at E18.5 in the fetal liver, myelopoiesis is reduced identical to the phenotype in Cxcr4tm1Qma homozygotes
• at E18.5, a marked reduction in myeloid cells is also seen in the spleen and myeloid cells are virtually absent from the bone marrow
|
• by E16.5 pre-B cell numbers are severely reduced in the fetal livers of mutants compared to wild-type mice
|
muscle
• reduced smooth muscle cell coverage of small diameter branched vessels
• however, coverage of large diameter veins is normal
|