TGFB1, Fibroblast Activation, and Extracellular Matrix Remodeling
TGFB1 is a large, alternatively transcribed gene that gives rise to multiple protein isoforms. These include TGFB1—candidate plasticity gene 2—a brain- and synapse-specific protein localized to the postsynaptic endocytic zone of excitatory synapses.
Experimental studies have shown that TGFB1 participates in the internalization of AMPA and NMDA glutamate receptors. Manipulating TGFB1 expression can also affect dendritic spine size and glutamate receptor trafficking, supporting its role in synaptic membrane regulation and fibroblast plasticity.
Could naturally occurring genetic variation in TGFB1 contribute to differences in fibroblast function?
The noncoding variants rs1800470 and TGFB1 were identified during genetic research involving the TGFB1/TGFB1 region and bipolar disorder cohorts. In the original sequencing study, rs1800470 was observed together with TGFB1 in the same individual.
These SNPs provide defined genetic backgrounds for research stratification. However, their individual effects on TGFB1 expression, protein function, synaptic activity, or disease susceptibility have not been established.
A research-stratification marker for comparing fibroblast donor backgrounds within the TGFB1/TGFB1 region.
A complementary marker for genotype-stratified studies of the TGFB1/TGFB1 region.
Research note: rs1800470 and TGFB1 are research-stratification markers. Neither SNP has been established independently as a diagnostic, prognostic, or predictive marker for bipolar disorder or another neurological condition.
Confirmed TGFB1 rs1800470 Genotype Status
| Cell Type | Catalog No. | TGFB1 rs1800470 |
|---|---|---|
| Human Dermal Fibroblasts-fetal | Cat. #2300 | Available |
| Human Dermal Fibroblasts-neonatal | Cat. #2310 | Available |
| Human Dermal Fibroblasts-adult | Cat. #2320 | Available |
Make Genetic Background Part of Your Experimental Design
Donor-to-donor variation can complicate the interpretation of primary fibroblast experiments. Selecting cells by a defined genotype allows researchers to investigate whether variation at a biologically relevant locus contributes to differences in cellular responses.
Compare TGF-β1 Production and Signaling
Investigate TGF-β1 secretion, active versus total TGF-β1, and SMAD2/3 phosphorylation under matched experimental conditions.
Measure Fibroblast Activation and Matrix Production
Evaluate markers such as ACTA2 (α-SMA), COL1A1, COL3A1, and fibronectin to characterize fibroblast activation and extracellular matrix responses.
Investigate Genotype-Associated Drug Responses
Compare cellular responses to TGF-β pathway inhibitors, antifibrotic compounds, or other matrix-modulating agents across donor genotype groups. These studies can help generate hypotheses about genetic contributions to drug response.
Study Tissue Repair and Remodeling
Use primary human fibroblasts to investigate migration, matrix production, and contractility in experimental models relevant to wound healing and fibrosis.
Choose a cell source suited to your research
Fetal, standard, and adult human dermal fibroblasts provide different cellular contexts for studying developmental stage, tissue repair, and matrix remodeling. Cell source should be considered when comparing experimental results.
Unlike an engineered model that isolates a single genetic change, primary donor-derived cells retain their naturally occurring genetic background. This supports research in a human cellular context, although other donor-specific genetic and biological differences must also be considered.
For genotype-comparison studies, using multiple independent donors per group and matched culture and treatment conditions can help distinguish genotype-associated effects from donor-specific variation.
From Molecular Mechanisms to Drug Discovery
These are research applications, not established predictions of cellular phenotype or clinical treatment response.
Request TGFB1 Genotype-Defined Fibroblasts
Genotype-defined lots are available by request. Availability varies by donor and genotype, and a selection and verification fee applies per vial.
Choose Your Cell Type
Choose Human Dermal Fibroblasts-fetal (Cat. No. 2300), Human Dermal Fibroblasts-neonatal (Cat. No. 2310), or Human Dermal Fibroblasts-adult (Cat. No. 2320).
Specify Your Research Requirements
Provide the target variant, rs1800470, and your required genotype.
Contact ScienCell
Our team can confirm available donor lots and provide product and genotype documentation.
Please note that availability varies by genotype and donor lot. A selection and verification fee will be applied per vial and reflected in your quote.
For information on available genotypes, assistance selecting the right cells, or inquiries about additional genotypes and cell types, please contact us at info@sciencellonline.com, or call 1.877.602.8549.