Accession Number : ADA318581

Title :   Post-Chemotherapeutic Hematopoietic Reconstitution: A Transgenic Mouse Model.

Descriptive Note : Annual rept. 1 Aug 94-31 Jul 96,

Corporate Author : DUKE UNIV DURHAM NC

Personal Author(s) : Lee, David M. ; Haynes, Barton F.

PDF Url : ADA318581

Report Date : AUG 1996

Pagination or Media Count : 104

Abstract : To improve the treatment of breast cancer, it is imperative to address specific shortcomings in autologous bone marrow reconstitution, in particular the frequent failure to reconstitute specific hematopoietic lineages and the length of time required to restore immunocompetence after transplant. We have developed both CD7 transgenic mouse and CD7 knockout mice as in vivo models for studying hematopoietic progenitor cell differentiation and the cytokines which regulate proliferation and differentiation of these progenitors. Work has also been initiated for development of mouse CD7 antibodies. These antibodies will allow selection of mouse multipotent hematopoietic progenitor cell populations that express the CD7 gene and which in humans are not stem cells, yet are multipotent. Characterization of these cell populations and their growth and differentiation factors will allow both the transplant of more mature progenitor populations to speed engraftment. In addition, we have cloned and sequenced the recently described mouse CD7 gene, and have identified numerous conserved functional sequence elements. These models should provide clinically relevant information about control of hematopoiesis.

Descriptors :   *MODELS, *MICE, *HEMATOPOIETIC CELLS, *BREAST CANCER, HUMANS, PROTEINS, ANTIBODIES, GENES, CLONES, IMMUNOLOGY, IN VIVO ANALYSIS, CELLS(BIOLOGY), BONE MARROW, CHEMOTHERAPY, HEMATOPOIESIS, CYTOLOGY, BLOOD CELLS, SURGICAL TRANSPLANTATION.

Subject Categories : Biochemistry
      Genetic Engineering and Molecular Biology
      Biology
      Anatomy and Physiology
      Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE