PMID- 26012218 OWN - NLM STAT- MEDLINE DCOM- 20150702 LR - 20191113 IS - 1110-0583 (Print) IS - 1110-0583 (Linking) VI - 45 IP - 1 DP - 2015 Apr TI - Studies on the role of tumor necrosis factor- alpha (TNF-alpha) in hepatocytes induced apoptosis in vaccinated, Schistosoma mansoni-challenged mice. PG - 47-60 AB - Tumour Necrosis Factor-alpha (TNF-alpha) plays a complex role in pathophysiological changes caused by schistosomiasis in the liver cells as induced apoptosis. So, The highlighted experimentally the role of TNF-alpha in hepatocytes apoptosis, using that as an assessment of the efficacy of antischistosomal vaccination by mixed crude antigens preparations [Cercarial antigen preparation (CAP) + soluble worm antigen preparation (SWAP) + soluble egg antigen(SEA)] by parasitological, histo-pathological and histochemical studies using Feulgen stain of hepatoytes DNA, a serological study also of serum TNF-alpha level by ELISA. Fifty two laboratory bred Albino male mice, were used in this study. They were classified into four groups (13 mice in each group), G1: normal control, G2 as infected control while G3 supported by Freund's Adjuvant (F. Adj) then infected and G4 vaccinated with combined antigens (CAP, SWAP and SEA) + F. Adj, then infected. Mice were sacrificed by cervical dislocation 9 weeks post infection, parasitological (Kato-Katz thick smear for egg count), histopathologial haematoxylin and eosin (H&E) staining of hepatic sections, histochemical (feulgen staining of hepatocytes DNA) and ELISA to estimate serum TNF-alpha level were performed. The data showed that vaccination with combined antigens showed protective effect on vaccinated then Schistosoma challenged mice, hepatocytes induced apoptosis was directly proportional with the TNF-alpha serum level, and the protection degree of potential combined vaccine was inversely proportional with serum TNF-alpha level and induced apoptosis. FAU - Etewa, Samia E AU - Etewa SE FAU - Abd El-Aal, Naglaa F AU - Abd El-Aal NF FAU - Abdel-Rahman, Sara A AU - Abdel-Rahman SA FAU - Abd El Bary, Eman H AU - Abd El Bary EH FAU - El-Shafei, Mahmoud A AU - El-Shafei MA LA - eng PT - Journal Article PL - Egypt TA - J Egypt Soc Parasitol JT - Journal of the Egyptian Society of Parasitology JID - 8102141 RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (Vaccines) SB - IM MH - Animals MH - Apoptosis/*physiology MH - Hepatocytes/immunology/*physiology MH - Male MH - Mice MH - Schistosoma mansoni/*immunology MH - Schistosomiasis mansoni/*prevention & control MH - Tumor Necrosis Factor-alpha/genetics/*metabolism MH - Vaccines/*immunology EDAT- 2015/05/28 06:00 MHDA- 2015/07/03 06:00 CRDT- 2015/05/28 06:00 PHST- 2015/05/28 06:00 [entrez] PHST- 2015/05/28 06:00 [pubmed] PHST- 2015/07/03 06:00 [medline] AID - 10.12816/0010849 [doi] PST - ppublish SO - J Egypt Soc Parasitol. 2015 Apr;45(1):47-60. doi: 10.12816/0010849.