期刊
GENES
卷 14, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/genes14101947
关键词
myelodysplastic neoplasms (MDS); germline (GL); KANK1; murine model; lymphoid dysregulation
KANK1 is a proposed tumour suppressor gene that is reduced or absent in several types of tumour tissue. A new germline loss of heterozygosity mutation in the KANK1 gene was found in a patient diagnosed with myelodysplastic neoplasm. KANK1 knockout mice showed altered colony forming and proliferative potential of bone marrow cells, as well as a decrease in hematopoietic stem and progenitor cells.
The KN Motif and AnKyrin Repeat Domain 1 (KANK1) is proposed as a tumour suppressor gene, as its expression is reduced or absent in several types of tumour tissue, and over-expressing the protein inhibited the proliferation of tumour cells in solid cancer models. We report a novel germline loss of heterozygosity mutation encompassing the KANK1 gene in a young patient diagnosed with myelodysplastic neoplasm (MDS) with no additional disease-related genomic aberrations. To study the potential role of KANK1 in haematopoiesis, we generated a new transgenic mouse model with a confirmed loss of KANK1 expression. KANK1 knockout mice did not develop any haematological abnormalities; however, the loss of its expression led to alteration in the colony forming and proliferative potential of bone marrow (BM) cells and a decrease in hematopoietic stem and progenitor cells (HSPCs) population frequency. A comprehensive marker expression analysis of lineage cell populations indicated a role for Kank1 in lymphoid cell development, and total protein analysis suggests the involvement of Kank1 in BM cells' cytoskeleton formation and mobility.
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