Efficacy and safety of cadonilimab in previously treated recurrent or metastatic nasopharyngeal carcinoma(COMPASSION-06): A phase II multicenter study.

Objective: This study was designed to assess the efficacy and safety of cadonilimab monotherapy, a first-in-class, bi-specific PD-1/CTLA-4 antibody, in patients with previously treated recurrent or metastatic nasopharyngeal carcinoma (R/M-NPC).

Patients And Methods: This multicenter, open-label, single-arm, phase II clinical trial enrolled patients with R/M-NPC who had failed first-line platinum-based chemotherapy and second-line single agent or combined chemotherapy, and immunotherapy-naive. Patients received cadonilimab for 6 mg/kg once every 2 weeks (Q2W).

Detection of nasopharyngeal carcinoma susceptibility with single nucleotide polymorphism analysis using next-generation sequencing technology.

Nasopharyngeal carcinoma (NPC) is a head and neck cancer with high incidence in South China and East Asia. To provide a theoretical basis for NPC risk screening and early prevention, we conducted a meta-analysis of relevant literature on the association of single nucleotide polymorphisms (SNP)s with NPC susceptibility. Further, expression of 15 candidate SNPs identified in the meta-analysis was evaluated in a cohort of NPC patients and healthy volunteers using next-generation sequencing technology.

[Regulating human interferon-gamma gene expression in marrow stromal cells in mice by Tet-off system].

Background & Objective: We have constructed plasmid "pTre-IFN-gamma" and proved that the Tet-off system could regulate the expression of human interferon-gamma (IFN-gamma) gene in murine marrow stromal cells in vitro. This study was to investigate the regulatory reversibility of Tet-off system and its effect on the expression of human IFN-gamma gene in murine marrow stromal cells in mice.

Methods: Plasmids pTet-off and pTre-IFN-gamma were co-transfected into murine marrow stromal cells.

[Correlation of hepatitis B virus infection to non-Hodgkin's lymphoma].

Background & Objective: Previous studies showed that the infection rate of hepatitis B virus (HBV) is higher in non-Hodgkin's lymphoma (NHL) patients than in non-primary liver cancer solid tumor patients and general population in the same region, but the correlation of HBV infection to NHL is inconclusive. This study was to compare HBV infection rate of NHL patients with that of non-primary liver cancer solid tumor patients, and explore the correlation of HBV infection to NHL.

Methods: The infection of hepatitis B virus surface antigen (HBsAg) in 109 NHL patients and 128 colorectal carcinoma patients was detected.