Cytotoxic T cells [cytotoxic lymphocytes (CTLs)] are crucial for adaptive immunity leading to prolonged survival and potential cures for cancer. Recent clinical data have shown that pharmacological in...

Building on their previous finding that supercentenarians possess a high fraction of CD4+ cytotoxic T cells (CD4+ CTLs) among their peripheral blood mononuclear cells (PBMCs), Hashimoto et al. now show that this unusual and rare subset of T cells, which possess the ability to kill tumour cells in a major histocompatibility complex class II (MHC II)-dependent manner in a range of cancer types, may contribute to cancer suppression. The authors began by profiling the transcriptome, surface proteins and T cell receptor (TCR) sequences of single T cells from the blood of donors in three age categories: aged 70–90, centenarians and supercentenarians. This revealed a consistent expansion in the proportion of CD4+ CTLs with age. However, this expansion was not specific to supercentenarians, with the highest proportion of CD4+ CTLs observed in a donor under the age of 100, indicating that CD4+ CTL expansion can also take place in younger individuals. Validating their finding, subsequent analysis of public single-cell datasets across a broad age range of 0 to 110 also showed that this immune cell population significantly increased at very advanced ages while remaining at a lower level in younger individuals...

Compact track loaders are workhorses, and manufacturers know it. CONEXPO-CON/AGG 2026 brought a new generation of CTLs to Las Vegas, each one shaped by the same forces: a changing workforce, growing attachment demands and a push to simplify ownership. Here’s a closer look at what’s new. The post Get to Know the Newest Compact Track Loaders on the Market in 2026 appeared first on Compact Equipment Magazine.

To clean tissue from tumorigenic and infected cells, cytotoxic T lymphocytes (CTLs) must navigate confined environments in vivo, locate the infected cells and eliminate them. Impaired CTL migration to...

YouTube video by Indisputable with Dr. Rashad Richey

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