We report a case of eruptive metastases to the skin of the face and neck from a hitherto unknown gastric carcinoma, occurring in a fifty-two-year-old man (a regular blood donor), about six months after he contracted human immunodeficiency virus-1 infection. The eruption, consisting of more than thirty pea-sized cutaneous nodules appeared within about twenty days. The patient complained of epigastric pain and weight loss. Histologic examination showed signet-ring cells of gastric carcinoma metastases. Gastroscopic examination showed a widely infiltrating tumor. No metastases were found elsewhere after a careful screening. Immunologic variables were only slightly altered. This case and a brief review suggest that gastric carcinomas, possibly as well as other coincidental tumors, may present atypically during human immunodeficiency virus-1 infection.
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Adv Sci (Weinh)
January 2025
School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, China.
Despite substantial advances in the antitumor effects of annonaceous acetogenins (ACGs), the absence of a defined biological action mechanism remains a major barrier to their clinical application. Here, it is found that squamocin effectively depletes both EZH2 and MYC in multiple cancer cell lines, including head and neck squamous cell carcinoma, and gastric and colorectal cancer, demonstrating potent efficacy in suppressing these in vivo tumor models. Through the combination of surface plasmon resonance (SPR), differential scanning fluorimetry (DSF), and cellular thermal shift assay (CETSA), heat shock protein 90α (HSP90α) is identified as the direct binding target of squamocin.
View Article and Find Full Text PDFCureus
December 2024
Surgical Oncology, All India Institute of Medical Sciences, New Delhi, New Delhi, IND.
We report a rare case of adenosquamous carcinoma of the gall bladder (GB) causing portal vein tumor thrombus. A 40-year-old gentleman presented with acute-onset right upper abdominal pain. Ultrasonography revealed multiple calculi in the GB with wall thickening, suggesting acute cholecystitis.
View Article and Find Full Text PDFJ Med Virol
January 2025
The Wistar Institute, Philadelphia, Pennsylvania, USA.
Epstein-Barr virus (EBV) is a ubiquitous human ɣ-herpesvirus implicated in various malignancies, including Burkitt's lymphoma and gastric carcinomas. In most EBV-associated cancers, the viral genome is maintained as an extrachromosomal episome by the EBV nuclear antigen-1 (EBNA1). EBNA1 is considered to be a highly stable protein that interacts with the ubiquitin-specific protease 7 (USP7).
View Article and Find Full Text PDFJ Nucl Med
January 2025
Department of Nuclear Medicine, Medical University of Innsbruck, Innsbruck, Austria
Several exploratory studies have demonstrated the feasibility of cholecystokinin-2 receptor (CCK2R) targeting in patients with medullary thyroid carcinoma (MTC) and other neuroendocrine tumors (NETs). We report the results of a prospective phase I/IIA pilot study (clinicaltrials.gov NCT06155994) conducted at our center with the Ga-labeled peptide analog DOTA-DGlu-Ala-Tyr-Gly-Trp-(N-Me)Nle-Asp-1-Nal-Phe-NH (Ga-DOTA-MGS5).
View Article and Find Full Text PDFJ Gastrointest Oncol
December 2024
Department of Surgery, Chonnam National University Hwasun Hospital and Medical School, Hwasun, South Korea.
Background: Colorectal metastasis from gastric cancer is very rare, with existing literature limited to only a few case reports. This study was designed to investigate the clinicopathological features and prognosis of colorectal metastasis arising from gastric cancer.
Methods: Patients with colorectal metastasis from gastric cancer who underwent surgical intervention at a single tertiary hospital between January 2010 and June 2023 were included, and their clinicopathological characteristics and oncologic outcomes were analyzed.
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