RESUMO
Ovarian cancer(OC)is an aggressive and fatal cancer. A growing number of studies have shown that the tumor mi-croenvironment(TME)is involved in the promotion and development of ovarian cancer,immunosuppression and inflammatory response through various mechanisms. TME includes tumor blood vessels and lymphatic vessels,as well as cancer cells,mesenchymal cells,im-mune cells,and extracellular matrix(ECM). Based on recent literature reports,this paper reviews the commonly used three-dimen-sional(3D)cell culture model of ovarian tumor microenvironment,and summarizes many 3D models that do not contain primitive stro-mal cells,aiming to find new approaches for ovarian cancer treatment.
RESUMO
Objective To prepare a peptide monoclonal antibody (McAb)against human papillomavirus 18E6 separately,and identify its specificity and pathogenicity.Metheds The advantage epitope peptide was designed and synthesized by ABCpred and Bcepred,and then used to immunize BALB/c mice after coupling with bovine serum albumin (BSA).And the McAb was prepared by hybridoma technique.HPV18E6 gene was amplified from cervical swab specimen containing HPV18 and insert-ed into expression vector pET-28a.The constructed recombinant plasmid was transformed to E.coli BL21(DE3)for expres-sion under induction of isopropyl thio-β-D-galactoside.The expressed protein was used to identified the McAb had been pre-pared.Results The hybridoma cell lines could constantly produce MAbs against HPV18E6 peptides.Sequencing proved that recombinant plasmid pET-28a-HPV18E6 was constructed correctly.Western blotting showed that the anti-HPV18E6 pep-tides antibody could specifically recognize HPV18E6.Conclusion A monoclonal antibody against the advantage epitope pep-tide of human papillomavirus 18E6 prepared could specifically recognize HPV18E6 specifically.