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008 170930s2017 ua do f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.08.06.Ph.D.2017.Sa.U
100 0 _aSafaa Abdelsalam Ezzeldeen Ibrahim
245 1 0 _aUnderstanding the molecular mechanisms involved in the regulation of the immune response to cancer-related inflammation /
_cSafaa Abdelsalam Ezzeldeen Ibrahim ; Supervised Magdy A. Amin , Kenneth D. Beaman
246 1 5 _aفهم الآليات الجزيئية المشاركة فى تنظيم الاستجابة المناعية للالتهابات ذات الصلة بالسرطان
260 _aCairo :
_bSafaa Abdelsalam Ezzeldeen Ibrahim ,
_c2017
300 _a124 P. :
_bcharts , photographs ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Pharmacy - Department of Microbiology and Immunology
520 _aTumors are characterized by persistent inflammation that have important roles in progression of tumors and survival of cancer patients. Inflammatory immune cells specifically tumor-associated neutrophils (TAN) are considered essential components in the tumor microenvironment. In invasive breast cancer, TAN represent a significant portion of the tumor mass and are associated with increased angiogenesis and metastasis. Identifying the regulatory factors that control TAN behavior will help in developing new and specific therapeutic targets for cancer treatment. Vacuolar ATPases (V-ATPases), multi-subunit proton pumps, are highly expressed in metastatic breast cancer cells. A cleaved peptide from a2 isoform V-ATPase (a2NTD) has immunomodulatory role in tumor microenvironment. In this study, we report for the first time the role of V-ATPase in neutrophils modulation. In invasive breast cancer cells, a2NTD was detected and a2V was highly expressed on the surface. Immunohistochemical analysis in invasive breast cancer tissues revealed that increased neutrophil recruitment and blood vessel density were correlated with increased a2NTD levels. In order to determine the direct regulatory role of a2NTD on neutrophils, recombinant a2NTD was used for the treatment of neutrophils isolated from the peripheral blood of healthy volunteers. Neutrophils treated with a2NTD (a2Neu{u0278}) showed increased secretion of IL-1RA, IL-10, CCL-2 and IL-6 that are important in cancer related inflammation
530 _aIssued also as CD
653 4 _aBreast cancer
653 4 _aNeutrophils
653 4 _aVaculoar
700 0 _aKenneth D. Beaman ,
_eSupervisor
700 0 _aMagdy A. Amin ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c62603
_d62603