Journal: EJNMMI Research
Article Title: CXCR4-targeted PET imaging in rheumatoid arthritis: a novel approach for monitoring disease activity and therapeutic response
doi: 10.1186/s13550-025-01203-z
Figure Lengend Snippet: Expression analysis of CXCR4 in RA. ( a ) RT-qPCR assay of CXCR4 mRNA levels in articular RNA extracted from healthy control mice (HC) and CIA and CAIA mice ( n = 16). ( b ) Detection of expression of CXCR4 in joints of CIA and CAIA mice by immunohistochemistry. ( c ) Analysis of CXCR4 expression in RA ( n = 152), OA ( n = 22), and healthy control (HC) joints (n = 28) using human transcriptome sequencing data from the GEO (GSE89408) database. ( d , e ) Analysis of CXCR4 expression by ( d ) RT-qPCR and ( e ) immunohistochemistry in human synovial tissues isolated from RA and OA after joint replacement surgery ( n = 11). ( f ) CXCR4 expression in immune cells. Synovial tissues of the joints of healthy and CAIA arthritic mice were digested into single-cell suspensions by cathepsin, and CXCR4 expression in each immune cell subpopulation was analyzed by flow cytometry. All RT-qPCR results were normalized with GAPDH. Data are expressed as mean ± SEM. ** P <0.01; *** P <0.001
Article Snippet: Collagen antibody-induced arthritis (CAIA) was induced in DBA/1 mice using the following protocol: on day 0, the mice received an intraperitoneal (i.p.) injection of 4 mg of a 5-clone anti-collagen monoclonal antibody cocktail (Chondrex).
Techniques: Expressing, Quantitative RT-PCR, Control, Immunohistochemistry, Sequencing, Isolation, Flow Cytometry