Background: Scavenger receptors (SRs) recognize endogenous molecules modified by pathological processes as well as components of diverse microorganisms. Mice deficient for both SR-AI and II are more susceptible to infections by a variety of bacterial and viral pathogens.
Results: Here we show that SR-A deficient mice and wild type mice are equally susceptible to malaria infection both during liver and blood stages. Moreover, like wild type mice, SR-A deficient mice are able to mount a protective immune response against radiation attenuated sporozoites.
Conclusion: Our results do not reveal a function of SR-A I and II receptors in the Plasmodium berghei ANKA infection, both in the development of CM and parasitemia control. Moreover, these receptors appear not to be required for the establishment of a protective immune response against the malaria liver stages.
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http://dx.doi.org/10.1186/1471-2180-6-73 | DOI Listing |
Open Life Sci
January 2025
Department of Medicine, Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, No. 411 Guogeli Street, Nangang District, Harbin, Heilongjiang, 150006, P.R. China.
The COVID-19 pandemic has raised concerns regarding its potential impact on premature ovarian insufficiency (POI). This overview examines the possible interactions between COVID-19 and POI, while also suggesting preventive measures. The viral infection's inflammatory response and immune dysregulation may adversely affect ovarian tissues, leading to inflammation and damage.
View Article and Find Full Text PDFiScience
January 2025
Microbiology and Immunology Department, School of Medicine, Faculty of Medical Science, Jinan University, Guangzhou 510632, Guangdong, China.
γδ T cells play protective roles in tuberculosis (TB). Our work demonstrated the therapeutic potential of allogeneic Vγ9Vδ2 T cells in TB patients. However, their functions in TB require further comprehensive evaluation.
View Article and Find Full Text PDFBMJ Oncol
August 2024
Cyrus Tang Medical Institute, State Key Laboratory of Radiation Medicine and Prevention, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, China.
Objective: Current biomarkers for predicting immunotherapy response in non-small-cell lung cancer (NSCLC) are derived from invasive procedures with limited predictive accuracy. Thus, identifying a non-invasive predictive biomarker would improve patient stratification and precision immunotherapy.
Methods And Analysis: In this retrospective multicohort study, the discovery cohort included 205 NSCLC patients screened from ORIENT-11 and an external validation (EV) cohort included 99 real-world NSCLC patients.
JMIRx Med
January 2025
Department of Biochemistry and Medical Genetics, Cancer Center, University of Illinois Chicago, 900 s Ashland, Chicago, IL, 60617, United States, 1 8479124216.
Background: The causes of breast cancer are poorly understood. A potential risk factor is Epstein-Barr virus (EBV), a lifelong infection nearly everyone acquires. EBV-transformed human mammary cells accelerate breast cancer when transplanted into immunosuppressed mice, but the virus can disappear as malignant cells reproduce.
View Article and Find Full Text PDFCommun Biol
January 2025
Department of Histology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
Tight junctions (TJs) between adjacent Sertoli cells are believed to form immunological barriers that protect spermatogenic cells expressing autoantigens from autoimmune responses. However, there is no direct evidence that Sertoli cell TJs (SCTJs) do indeed form immunological barriers. Here, we analyzed male mice lacking claudin-11 (Cldn11), which encodes a SCTJ component, and found autoantibodies against antigens of spermatocytes/spermatids in their sera.
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