Fishes have been recently recognized as a suitable model organism to study vertebrate physiological processes, in particular skeletal development and tissue mineralization. However, there is a lack of well characterized in vitro cell systems derived from fish calcified tissues. We describe here a protocol that was successfully used to develop the first calcified tissue-derived cell cultures of fish origin. Vertebra and branchial arches collected from young gilthead seabreams were fragmented then submitted to the combined action of collagenase and trypsin to efficiently release cells embedded in the collagenous extracellular matrix. Primary cultures were maintained under standard conditions and spontaneously transformed to form continuous cell lines suitable for studying mechanisms of tissue mineralization in seabream. This simple and inexpensive protocol is also applicable to other calcified tissues and species by adjusting parameters to each particular case.
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http://dx.doi.org/10.1007/s10616-007-9098-8 | DOI Listing |
Sci Rep
January 2025
Medical Physics, University of Wisconsin School of Medicine and Public Health (UW-SMPH), Madison, USA.
Carotid plaques-the buildup of cholesterol, calcium, cellular debris, and fibrous tissues in carotid arteries-can rupture, release microemboli into the cerebral vasculature and cause strokes. The likelihood of a plaque rupturing is thought to be associated with its composition (i.e.
View Article and Find Full Text PDFCardiovasc Ther
January 2025
Institute of Medicine, Hubei Key Laboratory of Diabetes, Hubei University of Science and Technology, Xianning, China.
Objective: We investigated the effects of resveratrol (Res) and MCC950 on the pyroptosis of vascular smooth muscle cells (VSMCs) and the potential pathway.
Methods And Results: Compared with the control (Con) group, the atherosclerosis (AS) group showed calcified nodules, which suggested that the calcification medium induced the calcification of VSMCs. VSMCs showed proliferative activity and significantly attenuated calcification under treatment with 10 mol/L Res.
J Histotechnol
December 2024
Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
Bone tissue poses critical roadblocks for spatial transcriptomics and molecular pathology due to a combination of its dense, calcified matrix and inadequate preservation of biomolecules in conventional decalcification. Decalcification is a complex and nuanced histological process to concomitantly preserve nucleic acids, proteins, and tissue architecture, ensuring molecular integrity for downstream assays. However, commonly used agents like formic and hydrochloric acids, while efficient, can degrade biomolecules to varying extents, complicating assays such as PCR, sequencing, immunohistochemistry, and hybridization.
View Article and Find Full Text PDFJ Med Case Rep
December 2024
Department of General Medicine, INHS Asvini, Mumbai, India.
Background: Cysticercosis, a parasitic infection caused by the larval stages of the pork tapeworm, Taenia solium, predominantly affects cerebral and ocular tissues. The subcutaneous manifestation of this disease is a relatively uncommon clinical occurrence. Previously very few or no cases of cysticercosis presenting as subcutaneous solitary painful swelling have been reported in the literature.
View Article and Find Full Text PDFProc (Bayl Univ Med Cent)
September 2024
Texas A&M University, Temple, Texas, USA.
A 13-year-old boy was referred to orthopedic surgery for chronic intermittent pain and swelling of the left knee. Initial imaging was consistent with osteochondritis dissecans of the femoral condyle. Follow-up imaging demonstrated unexpected progression, with a mass extending into the notch, replacing the anterior cruciate ligament, and eroding the femoral and tibial condyles.
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