Porcine Trabecular Meshwork Cell: PTMC Top: Phase-contrast, Bottom Left: PTMC immunostained for alpha-Smooth Muscle Actin (green), Bottom Right: Fibronectin (green), nuclei are stained with DAPI.
Porcine Trabecular Meshwork Cells: PTMC
Description
Porcine Trabecular Meshwork Cells (PTMC) are primary cells derived from pig eyes. PTMC are cultured in Porcine Trabecular Meshwork Cell Growth Medium and are able to propagate to 10 population doublings when cultured under the recommended conditions. Trabecular Meshwork cells are endothelial-like cells in a sponge-like connective tissue located near the front of the eye and are responsible for regualting eye pressure by controlling drainage of fluid into tubes that flow into the bloodstream. Outflow is mediated by alterations in contractility and tension of TM, which also serve as a self-cleaning filter due to their phagocytic nature. Live cell imaging of the cytoskeleton provides valuable information on actin dynamics in PTMC. Other research aims to identify treatments that relax TM contraction to increase fluid outflow and lower eye pressure. Specific targeting of TM could also play a clinical role by increasing therapeutic efficacy of nanoparticles for gene delivery. Damage and dysfunction of TM have clinical significance. For instance, hypoxia increases DNA methylation, accompanied by altered gene expression, whereas during the normal aging process, TM number decreases, and senescent cells accumulate.
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In Glaucoma, a leading cause of irreversible blindness, decreased fluid outflow causes an elevation of intraocular pressure and progressive loss of retinal ganglion cells. Physical changes to the TM include increased fibrosis, fibronectin accumulation, and expression of ECM cross-linking enzymes. This cytoskeletal reorganization and cell loss causes the TM to become rigid and stiff. Other glaucoma-related dysfunctions include mitochondrial defects, altered signaling pathways, elevated TGF-β2, genomic DNA defects, and oxidation damage.
Details
| Tissue | Normal healthy porcine cornea | |
|---|---|---|
| QC | No bacteria, yeast, fungi, mycoplasma, virus | |
| Bioassay | Attach, spread, proliferate in Growth Med | |
| Cryovial | 500,000 PTMC frozen in Basal Medium w/ 10% FBS, 10% DMSO | |
| Kit | Cryovial frozen PTMC (P634-05), Growth Medium (P631-500), Subculture Rgnt Kit (090K) | |
| Proliferating | Shipped in Tsfr Med, flasks or plates | |
| Doublings | At least 17 | |
| Applications | Laboratory research use only (RUO). Not for human, clinical, diagnostic or veterinary use. |
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