Distinct tumor-TAM interactions in IDH-stratified glioma microenvironments unveiled by single-cell and spatial transcriptomics DOI Creative Commons
Meysam Motevasseli, Maryam Darvishi, Alireza Khoshnevisan

et al.

Acta Neuropathologica Communications, Journal Year: 2024, Volume and Issue: 12(1)

Published: Aug. 16, 2024

Tumor-associated macrophages (TAMs) residing in the tumor microenvironment (TME) are characterized by their pivotal roles progression, antitumor immunity, and TME remodeling. However, a thorough comparative characterization of tumor-TAM crosstalk across IDH-defined categories glioma remains elusive, likely contributing to mixed outcomes clinical trials. We delineated phenotypic heterogeneity TAMs IDH-stratified gliomas. Notably, two TAM subsets with mesenchymal phenotype were enriched IDH-WT glioblastoma (GBM) correlated poorer patient survival reduced response anti-PD-1 immune checkpoint inhibitor (ICI). proposed SLAMF9 receptor as potential therapeutic target. Inference gene regulatory networks identified PPARG, ELK1, MXI1 master transcription factors BMD-TAMs. Our analyses reciprocal interactions revealed distinct tumors, including ANXA1-FPR1/3, FN1-ITGAVB1, VEGFA-NRP1, TNFSF12-TNFRSF12A known contribution immunosuppression, proliferation, invasion recruitment. Spatially resolved transcriptomics further elucidated architectural organization highlighted communications. Furthermore, we demonstrated significant upregulation ANXA1, FN1, NRP1, TNFRSF12A genes tumors using bulk RNA-seq RT-qPCR. Longitudinal expression analysis candidate no difference between primary recurrent indicating that interactive network malignant states does not drastically change upon recurrence. Collectively, our study offers insights into unique cellular composition communication TME, revealing novel vulnerabilities for interventions GBM.

Language: Английский

Counteracting Immunosenescence—Which Therapeutic Strategies Are Promising? DOI Creative Commons

Christoph Hieber,

Stephan Grabbe, Matthias Bros

et al.

Biomolecules, Journal Year: 2023, Volume and Issue: 13(7), P. 1085 - 1085

Published: July 6, 2023

Aging attenuates the overall responsiveness of immune system to eradicate pathogens. The increased production pro-inflammatory cytokines by innate cells under basal conditions, termed inflammaging, contributes impaired towards pathogen-mediated stimulation and limits antigen-presenting activity. Adaptive responses are attenuated as well due lowered numbers naïve lymphocytes their antigen-specific stimulation. Additionally, immunoregulatory cell types, comprising regulatory T myeloid-derived suppressor cells, that inhibit activity adaptive elevated. This review aims summarize our knowledge on cellular molecular causes immunosenescence while also taking into account senescence effects constitute evasion mechanisms in case chronic viral infections cancer. For tumor therapy numerous nanoformulated drugs have been developed overcome poor solubility compounds enable cell-directed delivery order restore functions, e.g., addressing dysregulated signaling pathways. Further, nanovaccines which efficiently address mount sustained anti-tumor clinically evaluated. senolytics selectively deplete senescent being tested a number clinical trials. Here we discuss potential use such improve anti-aging therapy.

Language: Английский

Citations

12

Transcriptomics Analysis Identifies the Decline in the Alveolar Type II Stem Cell Niche in Aged Human Lungs DOI
Xue Liu, Xuexi Zhang, Changfu Yao

et al.

American Journal of Respiratory Cell and Molecular Biology, Journal Year: 2024, Volume and Issue: 71(2), P. 229 - 241

Published: April 18, 2024

Aging poses a global public health challenge, which is linked to the rise of age-related lung diseases. The precise understanding molecular and genetic changes in aging that elevate risk acute chronic diseases remains incomplete. Alveolar type II (AT2) cells are stem maintain epithelial homeostasis repair after injury. AT2 progenitor function decreases with aging. maintenance requires niche support from other cell types, but little has been done characterize alveolar alterations niche. To systematically profile associated age, we present single-cell transcriptional atlas comprising nearly half million healthy lungs human subjects spanning various ages, sexes, smoking statuses. Most annotated lineages aged exhibit dysregulated programs. Specifically, demonstrate loss identities, heightened inflammaging characterized by increased expression AP-1 transcription factor chemokine genes, significantly cellular senescence. Furthermore, mesenchymal display remarkable decrease Collagen Elastin stemness. decline further exacerbated program macrophages communications between lungs. These findings highlight dysregulations observed both their supportive cells, potentially contributing susceptibility populations

Language: Английский

Citations

4

Single-cell and spatial transcriptomics analysis of human adrenal aging DOI Creative Commons
Norifusa Iwahashi, Hironobu Umakoshi, Masamichi Fujita

et al.

Molecular Metabolism, Journal Year: 2024, Volume and Issue: 84, P. 101954 - 101954

Published: May 6, 2024

The human adrenal cortex comprises three functionally and structurally distinct layers that produce layer-specific steroid hormones. With aging, the undergoes functional structural alteration or "adrenal aging", leading to unbalanced production of Given marked species differences in biology, underlying mechanisms aging have not been sufficiently studied. This study was designed elucidate linking alterations cortex. We conducted single-cell RNA sequencing spatial transcriptomics analysis aged data this suggest multiple signaling pathways underlie abnormal layered structure changes steroidogenic cells. also highlighted macrophages mediate age-related adrenocortical cell inflammation senescence. is first detailed at resolution helps mechanism thereby a better understanding pathophysiology disorders associated with aging.

Language: Английский

Citations

4

Molecular signatures of premature aging in Major Depression and Substance Use Disorders DOI Creative Commons
Anna Onisiforou, Panos Zanos, Polymnia Georgiou

et al.

Scientific Data, Journal Year: 2024, Volume and Issue: 11(1)

Published: June 26, 2024

Abstract Major depressive disorder (MDD) and substance-use disorders (SUDs) often lead to premature aging, increasing vulnerability cognitive decline other forms of dementia. This study utilized advanced systems bioinformatics identify aging “signatures” in MDD SUDs evaluated the potential for known lifespan-extending drugs target reverse these signatures. The results suggest that inhibiting transcriptional activation FOS gene family members holds promise mitigating SUDs. Conversely, antidepressant activating PI3K/Akt/mTOR pathway, a common mechanism rapid-acting antidepressants, may accelerate patients, making them unsuitable those with comorbid aging-related conditions like dementia Alzheimer’s disease. Additionally, this innovative approach identifies anti-aging interventions such as Deferoxamine, Resveratrol, Estradiol valerate, natural compounds zinc acetate, genistein, ascorbic acid, regardless anxiety disorders. These findings illuminate effects offer insights into treatment strategies patients conditions, including

Language: Английский

Citations

4

A multi-omics approach to reveal critical mechanisms of activator protein 1 (AP-1) DOI Open Access
Fei Li, Jiaqi Tian, Lin Zhang

et al.

Biomedicine & Pharmacotherapy, Journal Year: 2024, Volume and Issue: 178, P. 117225 - 117225

Published: July 30, 2024

The Activator Protein 1 (AP-1) transcription factor complex plays a pivotal role in the regulation of cancer-related genes, influencing cancer cell proliferation, invasion, migration, angiogenesis, and apoptosis. Composed multiple subunits, AP-1 has diverse roles across different types environmental contexts, but its specific mechanisms remain unclear. advent multi-omics approaches shed light on more comprehensive understanding AP-1's mechanism gene regulation. This review collates recent genome-wide data provides an overview expression, structure, function, interaction diseases. An examination these findings can illuminate intricate nature significant involvement progression Moreover, we discuss potential use as target for individual therapy explore various challenges associated with such approach. Ultimately, this valuable insights into biology therapeutic disease treatments.

Language: Английский

Citations

4

Niche-derived Semaphorin 4A safeguards functional identity of myeloid-biased hematopoietic stem cells DOI

Dorsa Toghani,

S. Gupte,

Sharon Zeng

et al.

Nature Aging, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Language: Английский

Citations

0

The single-cell Immune landscapes of HIV-associated aggressive B-cell lymphoma DOI Creative Commons
Xiaomei Zhang, Zailin Yang, Xiaoqing Xie

et al.

Journal of the National Cancer Center, Journal Year: 2025, Volume and Issue: 5(2), P. 221 - 235

Published: Feb. 12, 2025

Language: Английский

Citations

0

Magnolin ameliorates acetaminophen-induced liver injury in mice via modulating the MAPK pathway and lipid metabolism DOI
Ting Yao, Youhe Wu,

Liyun Fu

et al.

Toxicology and Applied Pharmacology, Journal Year: 2025, Volume and Issue: unknown, P. 117264 - 117264

Published: Feb. 1, 2025

Language: Английский

Citations

0

IL17A/F secreted by ASCT2-overexpression ovarian cancer cells contributes to immune escape through the suppression of natural killer (NK) cells cytotoxicity by the activation of c-JUN/ PTGS2 pathway DOI Creative Commons
Huixiang Zhang, Haohan Li, Yanyan Qi

et al.

International Immunopharmacology, Journal Year: 2025, Volume and Issue: 150, P. 114226 - 114226

Published: Feb. 14, 2025

Ovarian cancer (OC) is a deadly gynecologic associated with metastasis, recurrence, and treatment resistance. The expression of the alanine-serine-cysteine transporter 2 (ASCT2) has been linked to poor prognosis immune cell infiltration in OC tumors, but underlying mechanisms are unclear. Lentiviral constructs were used manipulate ASCT2 cells (SKOV-3). effects on SKOV-3 behaviors including proliferation, invasion, migration, apoptosis, cycle assessed using various assays. correlation between was analyzed Cancer Genome Atlas (TCGA) database. Co-culture experiments conducted evaluate impact overexpression NK cells, followed by transcriptomics cytokine analysis. levels characterized qPCR western blotting. significantly promoted percentage G1-phase while inhibiting apoptosis. silencing had opposite effect. negatively OC. led excessive IL-17A/F production inhibited antitumor activity possibly through activating IL-17 signaling pathway. core regulatory genes c-JUN/PTGS2 this pathway upregulated, cytokines decreased co-cultured resulting within tumor. Our results suggest that may play predominant role

Language: Английский

Citations

0

Treatment with cyclosporine attenuates the inflammatory process and severity of bisphosphonate-induced osteonecrosis of the jaws in rats DOI

Camila Costa Dias,

Caio Ferreira Freire Caetano,

Gabriella Alves Julião Costa

et al.

Inflammopharmacology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Language: Английский

Citations

0