The authors present a very rare case of primary lung acinic cell carcinoma with carcinoid component in a 53-year-old man.
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Atrophic meibomian gland dysfunction induced by eyelid margin cryotherapy with liquid nitrogen.
Sci Rep
January 2025
Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
To develop an atrophic Meibomian Gland Dysfunction (MGD) animal model via liquid nitrogen cryotherapy, the eyelid edges of C57 mice exposure to liquid nitrogen for 30 s. Morphology of MG and ocular surface were assessed using stereomicroscopy and a slit lamp microscope at multiple time points post-injury. Acinar loss and atrophy were observed from day 7, with increased inflammation and apoptosis, and decreased proliferation in acinar cells.
View Article and Find Full Text PDFExploratory study on the efficacy of topical pan-JAK inhibitor in ocular and skin GVHD in a sclerodermatous GVHD mouse model.
Sci Rep
January 2025
Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-0016, Japan.
Systemic administration of Janus kinase (JAK) inhibitors is effective in treating chronic graft-versus-host disease (cGVHD) but is associated with side effects. Topical drug administration effectively minimizes side effects. We aimed to investigate potential trends of the efficacy of topical delgocitinib administration in a mouse model.
View Article and Find Full Text PDFEZH2 deletion does not impact acinar regeneration but restricts progression to pancreatic cancer in mice.
JCI Insight
December 2024
Department of Physiology and Pharmacology, University of Western Ontario, London, Canada.
Enhancer of Zeste Homologue 2 (EZH2) is part of the Polycomb Repressor Complex 2, which promotes trimethylation of lysine 27 on histone 3 (H3K27me3) and genes repression. EZH2 is overexpressed in many cancers and studies in mice attributed both pro-oncogenic and tumor suppressive functions to EZH2 in pancreatic ductal adenocarcinoma (PDAC). EZH2 deletion enhances de novo KRAS-driven neoplasia following pancreatic injury, while increased EZH2 expression in PDAC patients is correlated to poor prognosis, suggesting a context-dependant effect for EZH2 in PDAC progression.
View Article and Find Full Text PDFImpact of acute schistosomiasis mansoni and concurrent type 1 diabetes on pancreatic architecture in mice.
Exp Parasitol
December 2024
Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Medical Sciences College (FCM), Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil.
It is not well understood how type 1 diabetes (T1D) and concomitant acute schistosomiasis mansoni affect pancreatic architecture. Male Swiss mice were administered streptozotocin (single 100 mg/kg i.p.
View Article and Find Full Text PDFTuft cells transdifferentiate to neural-like progenitor cells in the progression of pancreatic cancer.
Dev Cell
December 2024
Department of Surgery, Henry Ford Health, Detroit, MI, USA; Department of Pharmacology and Toxicology, Michigan State University, Lansing, MI, USA. Electronic address:
Pancreatic ductal adenocarcinoma (PDA) is partly initiated through the transdifferentiation of acinar cells to metaplasia, which progresses to neoplasia and cancer. Tuft cells (TCs) are chemosensory cells not found in the normal pancreas but arise in cancer precursor lesions and diminish during progression to carcinoma. These metaplastic TCs (mTCs) suppress tumor progression through communication with the tumor microenvironment, but their fate during progression is unknown.
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