COL14A1 encodes the alpha-1 chain of collagen XIV, a 193.5 kDa protein comprising 1,796 amino acids . It plays adhesive roles in collagen bundle integration and regulates fibrillogenesis, mechanical stress responses, and cell differentiation . COL14 is predominantly expressed in connective tissues, including lung, skin, and blood vessels .
COL14 antibodies are available in polyclonal and monoclonal forms, with the following specifications:
COL14 antibodies revealed that collagen XIV knockout mice (Col14a1⁻/⁻) exhibit disorganized dermal collagen fibrils and compromised tissue integrity, underscoring its role in fibril assembly .
In idiopathic pulmonary fibrosis (IPF), COL14 expression is proportionally reduced relative to collagen I (COL1). Single-cell RNA sequencing shows elevated COL14A1 in IPF stromal cells, yet its protein ratio to COL1 decreases, suggesting dysregulated ECM remodeling .
| Study | Finding | Citation |
|---|---|---|
| IPF vs. Non-IPF | COL14:COL1 ratio lower in IPF lungs (median 0.07 vs. 0.12 in controls) | |
| Mechanical Stress | COL14 localizes to high-stress regions (e.g., airways, blood vessels) |
COL14 is essential for cardiac interstitial formation. Embryonic Col14a1⁻/⁻ mice show ventricular wall thinning and impaired fibroblast proliferation .
Specificity: Validated via immunoblotting and collagenase digestion .
Cross-Reactivity: Confirmed in human, mouse, rat, and pig tissues .
Citations: Cited in studies investigating fibrosis , developmental defects , and fibrillogenesis .
Diagnostic Use: Restricted to research; not approved for clinical diagnostics .
Batch Variability: Polyclonal antibodies may exhibit lot-to-lot variability .
Current research leverages COL14 antibodies to explore therapeutic targeting in fibrotic diseases and tissue engineering. Ongoing studies focus on COL14’s interaction with TGF-β signaling pathways in IPF .