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Primary myoepithelial carcinoma of the tibia: a close clinicoradiological mimicker of osteosarcoma.
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Pathology and Lab Medicine, AIIMS Jodhpur, Jodhpur, Rajasthan, India.
Myoepithelial tumours are rare and distinct entities with uncertain histogenesis. They occur primarily in major salivary glands and soft tissue around the head and neck. Bony involvement predominantly occurs in facial bones.
View Article and Find Full Text PDFIntroduction: Invasive Stratified Mucin-producing Carcinoma (ISMC) of the cervix is a newly named cervical adenocarcinoma associated with Human Papilloma virus (HPV). Due to its relative rarity, clinical data, pathological features, and molecular characteristics of ISMC are still under exploration. This study aims to retrospectively analyze the clinical data and pathological features of ISMC patients, summarizing the clinical and pathological morphological characteristics of ISMC.
View Article and Find Full Text PDFGenetic and biochemical characterization of a radical SAM enzyme required for post-translational glutamine methylation of methyl-coenzyme M reductase.
mBio
January 2025
Department of Microbiology, University of Illinois Urbana-Champaign, Champaign, Illinois, USA.
Methyl-coenzyme M reductase (MCR), the key catalyst in the anoxic production and consumption of methane, contains an unusual 2-methylglutamine residue within its active site. data show that a B12-dependent radical SAM (rSAM) enzyme, designated MgmA, is responsible for this post-translational modification (PTM). Here, we show that two different MgmA homologs are able to methylate MCR when expressed in , an organism that does not normally possess this PTM.
View Article and Find Full Text PDFT cell receptor (TCR) mimics offer a promising platform for tumor-specific targeting of peptide-MHC in cancer immunotherapy. Here, we designed a α-helical TCR mimic (TCRm) specific for the NY-ESO-1 peptide presented by HLA-A 02, achieving high on-target specificity with nanomolar affinity (K = 9.5 nM).
View Article and Find Full Text PDFNovel inclusion in the silvery hair syndromes: unravelling the mystery behind the silvery hair of homocystinuria.
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January 2025
Radiology, AIIMS Bibinagar, Hyderabad, India.
Homocystinuria is a disorder of methionine metabolism leading to abnormal accumulation of homocysteine and its metabolites in blood and urine. This condition presents with a wide range of cutaneous and systemic features. This case report focuses on the particular cutaneous finding of silvery hair in this patient and its examination under a microscope that reveals an unusual and not yet reported finding of melanin clumps.
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