Résumé
Objective To investigate the local immune response in condyloma acuminatum treated with aminolevulinic acid-photodynamic therapy (ALA-PDT).Methods In vitro and in vivo studies were performed.A previously established keratinocyte cell line human papilloma virus (HPV) 16E7/HaCaT which stably expresses HPV16E7 protein was used in this study.Peripheral blood mononuclear cells (PBMCs) were separated from 10 healthy volunteers.After pretreatment with ALA-PDT,HPV16E7/HaCaT cells were cocultured with the PBMCs for 3 hours in a Transwell chamber followed by the observation of chemotactic migration of PBMCs.Tissue samples were obtained from the lesions of 10 patients with condyloma acuminatum before,and at 1,2,3 and 48 hours after the first session of ALA-PDT.Immunohistochemistry was conducted to determine the number of CD4+ T cells,CD8+ T cells and CD68+ macrophages as well as CD4/CD8 T-cell ratio in the tissue samples.Results After 3-hour coculture with HPV16E7/HaCaT cells pretreated by ALA-PDT,PBMCs showed apparent chemotactic migration.Immunohistochemistry revealed a statistical increase in the number of CD4+ T cells,CD8+ T cells and CD4/CD8 T-cell ratio at 48 hours (all P ＜ 0.05),as well as in the number of CD68+ macrophages at 3 hours and 48 hours (both P ＜ 0.05) after the first session of ALA-PDT.Conclusion ALA-PDT may induce local antiviral immune response in condyloma acuminatum.
Résumé
AIM: Coding microsphere suspension chip is a novel protein chip technology, which is considered as the developing direction of medical tests. This study investigated the feasibility of coding microsphere suspension chip to detect coronary heart disease (CHD)-associated protein factors. METHODS: The serum samples of 30 patients with CHD were collected including 19 males and 11 females, with average age of (63?10) years in the Department of Cardiology, Zhujiang Hospital of Southern Medical University from August to September 2007. Patients did not have hepatic or renal dysfunction, cerebrovascular accident, acute infection or any anticoagulation medication. The regional ethics committee approved the study protocol and the informed consents were obtained from all subjects. The integrated detection method was established by coding microsphere suspension chip to detect CHD-associated protein factors including high sensitivity C reactive protein (hs-CRP), lipoprotein a (Lpa) and adiponectin (ADPN). Meanwhile, these three factors from 30 CHD cases were detected by the enzyme-linked immunosorbent assay (ELISA). The detection results by both methods were compared. RESULTS: The serum samples of 30 CHD cases were all included in final analysis. The detection results by coding microsphere suspension chip integrated detection method were hs-CRP (2.54?1.97) mg/L, Lpa (102.41?76.74) mg/L and ADPN (15.43? 9.87) mg/L. The detection results by ELISA were hs-CRP (3.93?2.52) mg/L, Lpa (208.63?81.23) mg/L, and ADPN (16.63? 8.21) mg/L. The detection results by coding microsphere suspension chip integrated detection method were correlated significantly to that of ELISA (hs-CRP: r=0.979, P