A glomangioma (glomus tumor) arising in the pituitary region is described. The histologic and ultrastructural features were characteristic. The tumor was composed of epithelioid cells arranged in an organoid fashion around vascular channels and contained scattered mast cells. Electron microscopy revealed tumor cells that showed features of smooth muscle differentiation. Immunocytology demonstrated the presence of actin, desmin, and myoglobin within tumor cells and basement membrane antigen surrounding them; factor VIII was localized in endothelial cells and not within tumor cells. Pituitary hormones were not detected in the tumor by the immunoperoxidase technique. This is the first report of a glomangioma of the sella turcica. The gomitoli of the hypophyseal portal vessels are structures that resemble glomera found in other sites. Derivation of this tumor from gomitoli is suggested.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3109/01913128409141853 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Inflammation and Immune Escape in Ovarian Cancer: Pathways and Therapeutic Opportunities.
J Inflamm Res
January 2025
Precision Medicine Laboratory, School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, People's Republic of China.
Ovarian cancer (OC) remains one of the most lethal gynecological malignancies, largely due to its late-stage diagnosis and high recurrence rates. Chronic inflammation is a critical driver of OC progression, contributing to immune evasion, tumor growth, and metastasis. Inflammatory cytokines, including IL-6, TNF-α, and IL-8, as well as key signaling pathways such as nuclear factor kappa B (NF-kB) and signal transducer and activator of transcription 3 (STAT3), are upregulated in OC, promoting a tumor-promoting environment.
View Article and Find Full Text PDFMechanistic exploration of Traditional Chinese Medicine regulation on tumor immune microenvironment in the treatment of triple-negative breast cancer: based on CiteSpace and bioinformatics analysis.
Front Immunol
January 2025
Department of Breast and Thyroid Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
Background: Triple-negative breast cancer (TNBC) is a highly aggressive subtype of breast cancer, characterized by frequent recurrence, metastasis, and poor survival outcomes despite chemotherapy-based treatments. This study aims to investigate the mechanisms by which Traditional Chinese Medicine (TCM) modulates the tumor immune microenvironment in TNBC, utilizing CiteSpace and bioinformatics analysis.
Methods: We employed CiteSpace to analyze treatment hotspots and key TCM formulations, followed by bioinformatics analysis to identify the main active components, targets, associated pathways, and their clinical implications in TNBC treatment.
Generation and characterization of OX40-ligand fusion protein that agonizes OX40 on T-Lymphocytes.
Front Immunol
January 2025
Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan.
OX40, a member of the tumor necrosis factor (TNF) receptor superfamily, is expressed on the surface of activated T cells. Upon interaction with its cognate ligand, OX40L, OX40 transmits costimulatory signals to antigen-primed T cells, promoting their activation, differentiation, and survivalprocesses essential for the establishment of adaptive immunity. Although the OX40-OX40L interaction has been extensively studied in the context of disease treatment, developing a substitute for the naturally expressed membrane-bound OX40L, particularly a multimerized OX40L trimers, that effectively regulates OX40-driven T cell responses remains a significant challenge.
View Article and Find Full Text PDFPan-cancer analysis of Arp2/3 complex subunits: focusing on ARPC1A's role and validating the ARPC1A/c-Myc axis in non-small cell lung cancer.
Front Immunol
January 2025
Department of Laboratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
Background: The Arp2/3 complex is a key regulator of tumor metastasis, and targeting its subunits offers potential for anti-metastatic therapy. However, the expression profiles, prognostic relevance, and diagnostic value of its subunits across cancers remain poorly understood. This study aims to investigate the clinical relevance of Arp2/3 complex subunits, particularly ARPC1A, in pan-cancer, and to further analyze the potential biological mechanisms of ARPC1A, as well as its association with immune infiltration and chemotherapy drug sensitivity.
View Article and Find Full Text PDFm5C methylation modification may be an accomplice in colorectal cancer escaping from anti-tumor effects of innate immunity-type I/III interferon.
Front Immunol
January 2025
Traditional Chinese Medicine Department of Orthopaedic and Traumatic, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
Colorectal cancer (CRC) is one of the most prevalent malignant tumors in the world, and its occurrence and development are closely related to the complex immune regulatory mechanisms. As the first barrier of the body's defense, innate immunity plays a key role in tumor immune surveillance and anti-tumor response, in which type I/III interferon (IFN) is an important mediator with significant antiviral and anti-tumor functions. 5-methylcytosine (m5C) modification of RNA is a key epigenetic regulation that promotes the expression of CRC oncogenes and immune-related genes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!