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Involvement of CD44, “a molecule with thousand faces”, in autoimmune diseases Nathalie Assayag-Asherie, Itshak Golan, Lola Weiss, Lora Eshkar Sebban, Shimon Slavin, Itamar Raz and David Naor Supported by: D Cure Diabetes care in Israel and The Israel Academy of Sciences
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Involvement of CD44, “a molecule with thousand faces”, in autoimmune diseases Nathalie Assayag-Asherie, Itshak Golan, Lola Weiss, Lora Eshkar Sebban, Shimon Slavin, Itamar Raz and David Naor Supported by: D Cure Diabetes care in Israel and The Israel Academy of Sciences Israel Science Foundation
In collaboration with Professor Yehiel Zick The Weizmann Institute
CD44 FUNCTIONS *Cell-cell and cell-matrix interactions * Support of cell migration * Signal delivery for cell growth and cell differentiation * Transmission of apoptotic signals * Signal delivery for cell survival * Signal delivery for production of cytokines and chemokines * Presentation of chemokines and growth factors to cells with corresponding receptors * Docking of proteolytic enzymes on the cell surface and their presentation to relevant substrates * Internalization and degradation of hyaluronic acid
Anti-CD44 mAbs reduce pathological activities in the following experimental diseases:
Dr Lola Weiss Department of Bone Marrow Transplantation and Cancer Research Laboratory, Hadassah University Hospital, Jerusalem, Israel
Nathalie Assayag Asherie The Lautenberg Center for General and Tumor Immunology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
Anti-CD44 mAb reduces insulitis in NOD micehistopathological analysis PNAS,97:285,2000
Sequence of V4-V5 junction in CD44v3-v10 of Keratinocytes in normal donors 4 5 VARIANT EXON VARIANT EXON AT GTA GAC ATG ACT G V D M T D J. Clin . Invest. 111:1211 - 1220 (2003)
Binding of F8:33 Anti - CD44vRA mAb to Synovial Fluid Cells of an RA Patient but not to his own PBLs
Question Is the binding of anti-CD44 mAb to cell surface CD44 delivers intracellular signaling leading to a functional outcome, such as apoptosis ?
Anti-CD44vRA mAb + Anti-CD44vRA mAb +