Journal: Translational Lung Cancer Research
Article Title: Pleural mesothelioma patients and ex-exposed asbestos workers are immunologically poor responders to oncogenic Merkel cell polyomavirus
doi: 10.21037/tlcr-2025-198
Figure Lengend Snippet: OS analysis, seroprevalence and serological profiles of anti-MCPyV IgG antibodies evaluated in PM patients, and total IgG concentration in sera. (A) Kaplan-Meier model was used to longitudinally evaluate an association between MCPyV seropositivity and PM (n=108) patient’s OS during 99 months follow up. No significant differences were observed between MCPyV-seropositive and seronegative PMs (P>0.05). (B) Seroprevalences were compared in epithelioid (n=40), sarcomatoid (n=24), and biphasic (n=43) PM histotypes. (C,D) Serological profiles of serum antibody reactivity to VP1 S (C) and VP2 F (D) peptides were evaluated in the three PM histotypes. Immunologic data are reported as OD value readings at λ 405 nm for sera analyzed in immunoassay. In the scatter dot plot, each dot represents the dispersion of ODs of each sample. The median is indicated by the line inside the scatter plot with the IQR in PM epithelioid (n=40), sarcomatoid (n=24), and biphasic (n=43). (E) Total IgG concentration values in serum samples from CaP-PM (n=19), M-PM (n=11), P-PM (n=8), CiP-PM (n=5), and no-PM (n=17), reported as mg/mL. Data are presented as IgG mean values and their ranges marked by short horizontal lines. (F) Seroprevalences were compared in PM patients under CaP-PM (n=19), M-PM (n=11), P-PM (n=8), CiP-PM (n=5), and no-PM (n=17). (G,H) Serological profiles of serum antibody reactivity to VP1 S (G) and VP2 F (H) peptides were evaluated in PM patients undergoing different therapeutic regimens. (C,D,G,H) Immunologic data are reported as OD value readings at λ 405 nm for sera analyzed in immunoassay. In the scatter dot plot, each dot represents the dispersion of ODs of each sample. The dashed line indicates the cut-off value. *, P<0.05; ***, P<0.001. CaP-PM, PM patients under carboplatin + pemetrexed; CiP-PM, PM patients under cisplatin + pemetrexed; IgG, immunoglobulin G; IQR, interquartile range; M-PM, PM patients under mixed therapy; MCPyV, Merkel cell polyomavirus; no-PM, PM patients under no chemotherapy; OD, optical density; OS, overall survival; P-PM, PM patients under pemetrexed alone; PM, pleural mesothelioma; VP, viral protein.
Article Snippet: Total serum IgG concentration was determined using the human IgG total enzyme-linked immunosorbent assay (ELISA) kit (Thermo, Milan, Italy).
Techniques: Concentration Assay, Dispersion