Objective: Histamine plays an important role in a series of processes including inflammation, allergy, gastric acid secretion, neurotransmission, embryogenesis and in various tumours. Histidine decarboxylase (HDC), the enzyme solely responsible for generation of histamine is expressed in many cells including regenerating and tumour cells. HDC expression is regulated by multiple tissue factors, e.g. various cytokines and growth hormones. In this study the effect of interferon alpha and interferon gamma on the expression of HDC and on cell proliferation in vitro on melanoma cell line.
Methods: We used recombinant human interferon alpha, interferon gamma and human melanoma cell line HT168.
Results: Our data show that both IFNalpha and IFNgamma decreased the HDC mRNA and protein expression, though with dissimilar kinetics. IFNgamma strongly suppresses the proliferation at 72 h, while IFNalpha has a more moderate effect.
Conclusions: Since previously the inhibitory effect of histamine on gene expression of interferon gamma was detected, a reciprocal inhibition between histamine and IFNgamma is proposed.
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http://dx.doi.org/10.1007/s000110050606 | DOI Listing |
J Pharm Anal
October 2024
Department of Dermatology, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China.
Tetrandrine (TET), a natural bisbenzyl isoquinoline alkaloid extracted from S. Moore, has diverse pharmacological effects. However, its effects on melanoma remain unclear.
View Article and Find Full Text PDFInt J Nanomedicine
January 2025
Department of Medical Chemistry, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland.
Introduction: This article describes the invention of graphene oxide (GO) or reduced graphene oxide (rGO) functionalised with 2-methoxy estradiol. The presence of polar hydroxyl groups enables the binding of 2-ME to GO/rGO through hydrogen bonds with epoxy and hydroxyl groups located on the surface and carbonyl and carboxyl groups located at the edges of graphene flake sheets.
Methods: The patented method of producing the subject of the invention and the research results regarding its anticancer effectiveness via cytotoxicity in an in vivo model (against A375 melanoma and 143B osteosarcoma cells) are described.
Stem Cell Res Ther
January 2025
Key Laboratory of Resource Biology and Biotechnology in Western China, Provincial Key Laboratory of Biotechnology, College of Life Sciences, Ministry of Education, Northwest University, Xi'an, China.
Background: The senescence of bone marrow mesenchymal stem cells (BMMSCs) is increasingly recognized as a critical factor contributing to the pathophysiology of age-related diseases. Recent studies suggest that small extracellular vesicles (sEVs) derived from the serum of elderly individuals may play a pivotal role in promoting BMMSC senescence. Glycoprotein non-metastatic melanoma protein B (GPNMB), a type I transmembrane glycoprotein, is upregulated during cellular senescence and can regulate stem cell ageing.
View Article and Find Full Text PDFBMC Cancer
January 2025
Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, 210029, People's Republic of China.
Background: Hepatocellular carcinoma (HCC) is one of the most common tumors worldwide. Various factors in the tumor environment (TME) can lead to the activation of endoplasmic reticulum stress (ERS), thereby affecting the occurrence and development of tumors. The objective of our study was to develop and validate a radiogenomic signature based on ERS to predict prognosis and systemic combination therapy response.
View Article and Find Full Text PDFEur J Nucl Med Mol Imaging
January 2025
A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, #07-01, Nanos, Singapore, 138669, Republic of Singapore.
Purpose: Basal Cell Carcinoma (BCC), the most common subtype of non-melanoma skin cancers (NMSC), is prevalent worldwide and poses significant challenges due to their increasing incidence and complex treatment considerations. Existing clinical approaches, such as Mohs micrographic surgery, are time-consuming and labour-intensive, requiring meticulous layer-by-layer excision and examination, which can significantly extend the duration of the procedure. Current optical imaging solutions also lack the necessary spatial resolution, penetration depth, and contrast for effective clinical use.
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