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Clear cell renal cell carcinoma (ccRCC) accounts for approximately 75-80% of all patients with renal cell carcinoma. Despite its prevalence, little is known regarding the key components involved in ccRCC metastasis. In this study, scRNA-seq analysis was employed to classify CD8 T cells into four sub-clusters based on their genetic profiles and immunofluorescence experiments were used to validate two key clusters. Through gene set enrichment analysis, these newly identified sub-clusters were found to exhibit distinct biological characteristics. Notably, TYMP, TOP2A, CHI3L2, CDKN3, CENPM, and RZH2 were highly expressed in these sub-clusters, indicating a correlation with poor prognosis. Among these sub-clusters, CD8 T cells (MT-ND4) were identified as potentially playing a critical role in mediating ccRCC metastasis. These results contribute to our understanding of CD8 T cell heterogeneity in ccRCC and shed light on the mechanisms underlying the loss of immune response against cancer.
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http://dx.doi.org/10.1002/2211-5463.13819 | DOI Listing |
Infect Agent Cancer
July 2025
Innovative Immunological Models Unit, Istituto Nazionale Tumori - IRCCS - "Fond G. Pascale", Via Mariano Semmola, 52, Naples, Italy.
We have previously reported that microorganism-associated antigens (MAAs) share high sequence and conformational homology with tumor-associated antigens (TAAs) as well as T cells cross-react with homologous MAA/TAA pairs. More recently, we have also shown that the SARS-CoV-2 preventive vaccine, besides the humoral response, is able to elicit also a T cell response which cross-react with homologous TAAs. In the present study we analyzed the mandatory pediatric vaccines, namely the hexavalent vaccine (Diphtheria, Tetanus, Pertussis (whooping cough), Polio, Haemophilus influenzae type b (Hib), Hepatitis B) and the MMR (measles, mumps and rubella), and the chickenpox vaccine.
View Article and Find Full Text PDFJ Immunother Cancer
July 2025
Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.
Background: Cancer immunotherapy includes vaccines generated through distinct approaches, each with advantages and limitations. Those made of autologous or allogeneic whole cells do not require prior identification of antigens, that is, immunize against undetermined (agnostic) tumor antigens. However, they often exhibit low adjuvanticity and modest antigenicity.
View Article and Find Full Text PDFFront Immunol
July 2025
Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, United States.
Introduction: Benign prostatic hyperplasia (BPH) is among the most common age-associated diseases in men. Prostatic immune cell infiltration is frequently observed with aging coincident with BPH; however, the contribution of age-related changes in immune cells to BPH is not clear. As T cells are the predominate immune cell in aged prostates, it is hypothesized that age-associated alterations in T cell subsets contribute to BPH symptoms.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
August 2025
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P.R. China.
Piezocatalytic therapy is a novel therapeutic strategy that uses mechanical energy to drive catalytic reactions to generate cytotoxic reactive oxygen species (ROS). However, existing materials are limited by low intrinsic catalytic efficiency and a single route to ROS production. This makes it difficult to break through the antioxidant barrier of the tumor microenvironment, which severely limits the antitumor efficacy.
View Article and Find Full Text PDFImmunotherapy
April 2025
Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Aim: The effectiveness of immunotherapy with tumor associated antigen vaccines can be enhanced by combining oncolytic viruses with immune checkpoint inhibitors. This study evaluates the efficacy of oncolytic reovirus in combination with an adenovector expressing carcinoembryonic antigen (Ad-CEA) and a programmed death-1/programmed death-ligand 1 (PD-1/PD-L1) inhibitor in a mouse model.
Methods: Mice bearing CEA-expressing CT26 tumor cells were immunized with Ad-CEA along with a PD-1/PD-L1 inhibitor.