Parameter
| Biomarker | AKA | Full name | Antikeratin antibodies | Molecular Type | protein ( autoantibody ) |
|---|---|---|---|---|---|
| Molecular Formula | Molecular Weight | Core Functional Dimensions | Early diagnosis and bone erosion risk assessment | ||
| Disease | Rheumatoid Arthritis (RA) | Disease Subtypes | / | ||
| Organ | Joint (Synovium, Bone) | Test Sample / Technology Platform | Serum (Indirect Immunofluorescence) | ||
| Pathobiological Mechanisms | Identification of keratin protein antigens, associated with synovial fibroblast activation and osteoclast differentiation, can become positive 1-2 years prior to disease onset. | ||||
| Clinical Availability Status | Clinical auxiliary use | ||||
| Notes and Dynamics | Early bone erosion can be predicted; the detection method relies on subjective interpretation and is not used as a standalone first-line diagnostic indicator. | ||||