Invitrogen™ FSTL1 Polyclonal Antibody

Catalog No.	Quantity
PIPA5100097	100 μL

Catalog No. PIPA5100097

Supplier: Invitrogen™ PA5100097

Description

Rabbit Polyclonal Antibody

Antibody detects endogenous levels of total FSTL1.

Follistatin-like protein 1 (FSTL1) is a widely-expressed, extracellular glycoprotein that is homologously grouped into the osteonectin (BM-40/SPARC) family of secreted proteins based on its possession of both a follistatin-like and extracellular calcium-binding domain. Initially identified as a TGF-beta-inducible protein in a cloned mouse osteoblast cell line, FSTL1 has since been implicated in an array of cell-type-specific functions, such as the regulation of proliferation, differentiation, apoptosis and migration, as well as a number of biological processes, including embryonic development, inflammatory response, angiogenesis, tumorigenesis, and immune disease pathogenesis. Highly conserved across mammalian species and widely expressed in human tissues, FSTL1 can be upregulated through signaling mediators of the innate immune system,such as TLR4 agonists and the arthritogenic cytokine IL-1beta via NFkappaB pathways, to stimulate the expression and secretion of pro-inflammatory cytokines, including TNF-alpha, IL-1beta, IL-6 and IL-8. While cells of mesenchymal lineage are capable of FSTL1 production, FSTL1 expression is notably absent from cells of hematopoietic lineage under normal physiological conditions. Macrophages and monocytes are, however, capable of taking up FSTL1 at sites of inflammation where FSTL1 stimulation can cause the expression of caspase-1 and its resultant enzymatic cleavage of active IL-1beta from pro-IL-1beta. Whereas the overexpression of FSTL1 has been noted as a substantial contributor to the progression of immune diseases like rheumatoid arthritis (RA) and osteoarthritis (OA), diminished FSTL1 serum levels have been identified as playing a significant part in both ovarian and endometrial carcinogenesis, where it directly affects cell proliferation, migration and invasion.

Specifications

• Antigen: FSTL1
• Applications: Immunohistochemistry (Paraffin), Western Blot, Immunocytochemistry
• Classification: Polyclonal
• Concentration: 1 mg/mL
• Conjugate: Unconjugated
• Formulation: PBS with 50% glycerol and 0.02% sodium azide; pH 7.4
• Gene: Fstl1
• Gene Accession No.: Q12841, Q62632
• Gene Alias: AI316791; AW107808; FLJ50214; FLJ52277; follistatin like 1; follistatin-like 1; follistatin-like protein 1; Follistatin-related protein 1; FRP; FSL1; Fstl; FSTL1; MIR198; OCC1; OCC-1; TGF-beta-inducible protein TSC-36; tsc36; TSC-36
• Gene Symbols: Fstl1
• Host Species: Rabbit
• Immunogen: A synthesized peptide derived from human FSTL1(Accession Q12841), corresponding to amino acid residues E41-Q91.
• Purification Method: Affinity chromatography
• Quantity: 100 μL
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 11167, 79210
• Target Species: Human, Rat
• Content And Storage: -20°C
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG