Abdel Hamed Enas F, Mostafa Nahed E, Hassan Mohsen M, Ibrahim Mohamed N, Elraey Said Mahmoud, Radwan Mona, Al-Attar Al-Sayed R, Fawzy Eman M
Department of Medical Parasitology, Faculty of Medicine, Zagazig University, El Kawmia Square, Zagazig, Sharkia Governorate Egypt.
Clinical Laboratories Department, College of Applied Medical Sciences, Jouf University, Qurrayat, Kingdom of Saudi Arabia.
J Parasit Dis. 2022 Jun;46(2):491-501. doi: 10.1007/s12639-022-01476-4. Epub 2022 Mar 3.
The current study sought to investigate the potential role of infection in the treatment of -induced ileitis. Forty male Swiss albino mice were divided into four groups:a normal control group Igiven only phosphate-buffered saline (PBS), Group II givenPBS for 28 days then infected with cysts for the induction of gastroenteritis, Group III infected only with larvae, and Group IV concurrently infected with larvae, then 28 days post infection, enteritis was induced by oral inoculation with cysts. Histopathologicaland immunohistochemicalassessmentswere performed to determine the levels of inflammatory markers nuclear factor- κB (NF-κB) and myeloperoxidase in the ileum samples.Theconcentrations of cytokinesIFN-γ and IL10 were measured in successive serum samples. Histological assessment revealed severe inflammatory infiltrations in ileum samples of monoinfected mice. In addition, the immunological assessment revealed elevated levels of IFN-γ and decreased IL10 concentrations in blood samples. Clear improvement of inflammations, besidesthe decreasedlevels of IFN-γ and increased IL10 concentrations in blood samples were detected in coinfected animals.Theileal tissue revealed elevated expression of (NF-κB) and myeloperoxidase signaling, all of which were mitigated by coinfection. There is a possibility that regulatory T cells are immunomodulated, releasing anti-inflammatory cytokines while suppressing pro-inflammatory cytokines, causing its therapeutic impact. infection has the potential to be used for treatment of induced ileitis As a consequence of these encouraging results, crude and secretory-excretory antigens coated on nanoparticles are being studied in our future research.
本研究旨在探讨感染在治疗诱导性回肠炎中的潜在作用。将40只雄性瑞士白化小鼠分为四组:正常对照组(仅给予磷酸盐缓冲盐水(PBS));第二组给予PBS 28天,然后感染囊肿以诱发肠胃炎;第三组仅感染幼虫;第四组同时感染幼虫,感染后28天,通过口服接种囊肿诱发肠炎。进行组织病理学和免疫组织化学评估,以确定回肠样本中炎症标志物核因子-κB(NF-κB)和髓过氧化物酶的水平。在连续的血清样本中测量细胞因子IFN-γ和IL10的浓度。组织学评估显示,单感染小鼠的回肠样本中有严重的炎症浸润。此外,免疫学评估显示,血液样本中IFN-γ水平升高,IL10浓度降低。在合并感染的动物中,除了血液样本中IFN-γ水平降低和IL10浓度升高外,炎症明显改善。回肠组织显示(NF-κB)和髓过氧化物酶信号的表达升高,而合并感染可减轻所有这些变化。调节性T细胞有可能受到免疫调节,释放抗炎细胞因子,同时抑制促炎细胞因子,从而产生治疗作用。感染有可能用于治疗诱导性回肠炎。由于这些令人鼓舞的结果,我们未来的研究将对包被在纳米颗粒上的粗提抗原和分泌排泄抗原进行研究。