12,815 results match your criteria: "Carcinogenesis[Journal]"

Although genome-wide association studies (GWASs) have identified dozens of loci associated with colorectal cancer (CRC) susceptibility, the causal genes or risk variants within these loci and their biological functions often remain elusive. Recently, the genomic locus 12p13.32, with the tag SNP rs10774214, was identified as a crucial CRC risk locus in Asian populations.

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The role of Interleukin 17 (IL17) in cancer: A systematic review.

Carcinogenesis

December 2024

Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar.

Interleukin 17 (IL17) is a cytokine involved in immune regulation and has been increasingly recognized for its role in cancer progression. This systematic review aims to integrate data on IL17's role in various tumors to better understand its implications for cancer prognosis and treatment. The review included 105 studies (27.

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Testicular tumors are the most common malignancy of young men and tumors affecting the testis are caused by somatic mutations in germ or germ-like cells. The PI3K pathway is constitutively activated in about one third of testicular cancers. To investigate the role of the PI3K pathway in transforming stem-like cells in the testis, we investigated tumors derived from mice with post-natal, constitutive activation of PI3K signaling and homozygous deletion of tumor suppressor Pten, targeted to nestin expressing cells.

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Germline Alteration Analysis Reveals EPHB4R91H Mutation as a Key Player in Multiple Primary Lung Tumors.

Carcinogenesis

November 2024

Priority Research Centre for Healthy Lungs, School of Biomedical Sciences and Pharmacy, Faculty of Health and Hunter Medical Research Institute, University of Newcastle, Callaghan, Australia.

Multiple primary lung tumor is garnering attention from clinicians, with adenocarcinoma emerging as the predominant histological type. Because of the heterogeneity and diffuse distribution of lesions in the same patient, the treatment of multiple primary lung adenocarcinoma (MPLA) is a significant challenge. As a kind of variation unaffected by tumor heterogeneity, germline alterations may play a key role in the development of MPLA.

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Ultra-low-pass whole-genome sequencing (ULP-WGS) (≤0.5× coverage) of plasma cell-free DNA (cfDNA) has emerged as a low-cost promising tool to assess circulating tumor DNA (ctDNA) fraction. This meta-analysis aims to summarize the current findings and comprehensively investigate the prognostic value of baseline ctDNA detected by ULP-WGS in solid tumors.

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New-onset diabetes (NOD) is a common condition among patients with pancreatic adenocarcinoma (PAAD) and is related to poor clinical outcomes. The potential impact of NOD on PAAD progression and the tumor microenvironment remains unclear. Here, we revealed that NOD in PAAD was associated with metabolic disorders.

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Exogenous or in situ vaccination to trigger clinical responses in pancreatic cancer.

Carcinogenesis

November 2024

The Sidney Kimmel Comprehensive Cancer Center, The Bloomberg Kimmel Institute for Immunotherapy, The Cancer Convergence Institute, Johns Hopkins University School of Medicine, 4M07 Bunting Blaustein Cancer Research Building, 1650 Orleans Street, Baltimore, MD 21287, United States.

Article Synopsis
  • Pancreatic ductal adenocarcinoma (PDA) is a deadly cancer known for its strong resistance to traditional treatments, partly due to an immune-suppressive tumor environment.
  • The review examines two types of vaccination strategies: exogenous vaccines (like whole-cell and peptide vaccines) and in situ vaccination, which uses existing therapies to stimulate the immune response against the tumor.
  • While in situ vaccination shows promise in preclinical studies, more research is needed to refine these approaches and enhance anti-tumor immunity in patients with PDA.
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CAFomics: convergence to translation for precision stroma approaches.

Carcinogenesis

November 2024

Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, 450 West Drive, Chapel Hill, NC 27599, United States.

Article Synopsis
  • Pancreatic ductal adenocarcinoma (PDAC) is characterized by a dense tumor microenvironment with a complex stroma that affects tumor behavior and treatment response.
  • Early assumptions suggested that this dense stroma was protective for tumors, but recent clinical trials have shown disappointing results, indicating a need for reevaluation.
  • Research is increasingly focused on the diverse subpopulations of cancer-associated fibroblasts (CAFs) and their role in the tumor microenvironment, which will be crucial for developing targeted therapies in precision oncology for PDAC.
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From precursor to cancer: decoding the intrinsic and extrinsic pathways of pancreatic intraepithelial neoplasia progression.

Carcinogenesis

November 2024

Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21231, United States.

This review explores the progression of pancreatic intraepithelial neoplasia (PanIN) to pancreatic ductal adenocarcinoma through a dual lens of intrinsic molecular alterations and extrinsic microenvironmental influences. PanIN development begins with Kirsten rat sarcoma viral oncogene (KRAS) mutations driving PanIN initiation. Key additional mutations in cyclin-dependent kinase inhibitor 2A (CDKN2A), tumor protein p53 (TP53), and mothers against decapentaplegic homolog 4 (SMAD4) disrupt cell cycle control and genomic stability, crucial for PanIN progression from low-grade to high-grade dysplasia.

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Redefining pancreatic cancer management with tumor-agnostic precision medicine.

Carcinogenesis

November 2024

Early-Phase Drug Development, Sarah Cannon Research Institute, 335 24th Avenue North Suite 300, Nashville, TN 37203, United States.

Precision oncology and tumor-agnostic drug development provide hope for enhancing outcomes among patients with pancreatic cancer. Tumor-agnostic therapies have emerged across various tumor types, driven by insights into shared biomarkers. In the case of pancreatic cancer, the prevalence of the KRAS gene mutation is noteworthy.

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Phospholipase D (PLD) plays a critical role in cancer progression. However, its role in pancreatic cancer remains unclear. Thus, we evaluated the role of PLD1, one of two classical isoforms of PLD, in pancreatic carcinogenesis in vivo.

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Article Synopsis
  • Researchers previously found that benzo[a]pyrene (B[a]P), a carcinogen in tobacco smoke, caused significantly more DNA damage in smokers' buccal cells compared to non-smokers, indicating a link to oral squamous cell carcinoma (OSCC).
  • A Phase 0 clinical study involving 27 smokers tested the effects of black raspberry (BRB) lozenges on reducing B[a]P-induced DNA damage over an 8-week period.
  • Results showed a significant reduction in DNA damage at various points during and after BRB administration, suggesting its potential as a chemopreventive agent against tobacco-related OSCC.
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USP49 promotes adenocarcinoma of the esophagogastric junction malignant progression via activating SHCBP1-β-catenin-GPX4 axis.

Carcinogenesis

September 2024

Department of Oncology, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi province, 330006, China.

Adenocarcinoma of the esophagogastric junction (AEG) has received widespread attention because of its increasing incidence. However, the molecular mechanism underlying tumor progression remains unclear. Here, we report that the downregulation of Ubiquitin-specific peptidase 49 (USP49) promotes ferroptosis in OE33 and OE19 cells, thereby inhibiting cell proliferation in vitro and in vivo, whereas the overexpression of USP49 had the opposite effect.

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Article Synopsis
  • Maintaining balanced lipid levels is crucial for preventing lipotoxicity in tumors like colorectal cancer (CRC).
  • The RNA-binding protein HuR appears to enhance the expression of the vitamin D receptor (VDR), which helps regulate triglyceride (TG) and total cholesterol (TC) levels in CRC.
  • Targeting HuR could be a promising therapeutic strategy, as it affects VDR expression and lipid metabolism, ultimately influencing CRC growth.
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The BAG3-IFITM2 Axis Enhances Pancreatic Ductal Adenocarcinoma Growth via the MAPK Signaling Pathway.

Carcinogenesis

August 2024

West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China.

Pancreatic ductal adenocarcinoma (PDAC), a highly lethal malignancy, exhibits escalating incidence and mortality rates, underscoring the urgent need for the identification of novel therapeutic targets and strategies. The BAG3 protein, a multifunctional regulator involved in various cellular processes, notably plays a crucial role in promoting tumor progression and acts as a potential "bridge" between tumors and the tumor microenvironment. In this study, we demonstrate that PDAC cells secrete BAG3 (sBAG3), which engages the IFITM2 receptor to activate the MAPK signaling pathway, specifically enhancing pERK activity, thereby propelling PDAC growth.

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Tumor-associated macrophages (TAMs) take on pivotal and complex roles in the tumor microenvironment (TME); however, their heterogeneity in the TME remains incompletely understood. ETS proto-oncogene 1 (ETS1) is a transcription factor that is mainly expressed in lymphocytes. However, its expression and immunoregulatory role in colorectal cancer (CRC)-associated macrophages remain unclear.

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ADRA2A promotes the classical/progenitor subtype and reduces disease aggressiveness of pancreatic cancer.

Carcinogenesis

November 2024

Pancreatic Cancer Section, Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, United States.

Article Synopsis
  • Pancreatic ductal adenocarcinoma (PDAC) has different molecular subtypes, including a more aggressive basal-like/squamous subtype and a less aggressive classical/progenitor subtype.
  • A study identified that the adrenoceptor alpha 2A (ADRA2A) gene is downregulated in the aggressive subtype and its lower expression correlates with worse patient outcomes, including more metastasis and decreased survival.
  • Experimental results showed that increasing ADRA2A levels can reduce characteristics of the aggressive subtype while enhancing those of the less aggressive subtype, suggesting it could be a valuable target for diagnosis and treatment in PDAC.
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Allura Red AC is a xenobiotic. Is it also a carcinogen?

Carcinogenesis

October 2024

Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, 29208, United States.

Merriam-Webster and Oxford define a xenobiotic as any substance foreign to living systems. Allura Red AC (a.k.

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High circulating vitamin D levels and supplementation may lower prostate cancer mortality. To probe for direct effects of vitamin D signaling in the primary tumor, we assessed how activation of intratumoral vitamin D signaling in prostate cancer is associated with lethal prostate cancer during long-term follow-up. Among 404 participants with primary prostate cancer in the Health Professionals Follow-up Study and the Physicians' Health Study, we defined a gene score of expected activated intratumoral vitamin D signaling consisting of transcriptionally upregulated (CYP27A1, CYP2R1, RXRA, RXRB, and VDR) and downregulated genes (CYP24A1 and DHCR7).

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As a preventable disease, cervical cancer (cervical squamous cell carcinoma and endocervical adenocarcinoma - CESC) remains a tumor with high morbidity and mortality worldwide, underscoring the pressing need for effective treatment strategies. This research identified Golgi transport 1B (GOLT1B) as a critical gene involved in the development of cervical cancer. Gene Expression Omnibus (GEO) datasets were investigated to determine the upregulation of GOLT1B in cervical cancer tissue compared to normal tissue.

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