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Recent studies have identified Torquetenovirus (TTV) as a promising biomarker of immune competence, particularly in assessing the vaccine response of solid organ transplant (SOT) recipients. However, ...

Recent studies have identified Torquetenovirus (TTV) as a promising biomarker of immune competence, particularly in assessing the vaccine response of solid organ transplant (SOT) recipients. However, ...

In recent years, Torquetenovirus (TTV) load has emerged as a potential biomarker of immune competence across various clinical contexts, albeit its significance in cancer patients undergoing immunotherapy remains largely unexplored. This study aimed to investigate the level of TTV viral load in non-small cell lung cancer (NSCLC) patients treated with immune checkpoint inhibitors (ICIs). A total of 64 NSCLC patients were enrolled. Serum TTV DNA levels were quantified by real-time PCR at baseline (T0) and after three months of ICI therapy (T1). As control, TTV levels were also measured in a cohort of healthy donors at a single time point. Statistical analyses were performed to compare TTV copy numbers across groups and time points. At baseline, cancer patients exhibited significantly higher TTV viral loads than healthy donors, consistent with an immunocompromised status. Following ICI treatment, a significant decline in TTV levels was observed in the oncologic cohort, reaching values comparable to those of healthy individuals, with a more pronounced decrease observed in patients responsive to therapy. This study provides the first evidence that TTV viral load decreases following immunotherapy in NSCLC patients, potentially reflecting a restoration of immune competence. These findings support the hypothesis that TTV monitoring could serve as a surrogate marker of immune function during ICI treatment. Further large-scale, longitudinal studies are warranted to validate its clinical meaning in oncologic settings.

In recent years, mNGS has emerged as an unbiased molecular diagnostic tool for detecting and studying microorganisms in biological samples, greatly improving the comparability and reliability of test results between different laboratories24,25,26. In this study, we used mNGS to detect...

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Study delves into the relationships between various sexually transmitted infections, including Neisseria gonorrhoeae, Chlamydia trachomatis, Torquetenovirus, and high-risk HPV, and their effects on th...