Proteomic analysis of human osteoarthritis synovial fluid

Lavanya Balakrishnan, Raja Sekhar Nirujogi, Sartaj Ahmad, Mitali Bhattacharjee, Srikanth S Manda, Santosh Renuse, Dhanashree S Kelkar, Yashwanth Subbannayya, Rajesh Raju, Renu Goel, Joji Kurian Thomas, Navjyot Kaur, Mukesh Dhillon, Shantal Gupta Tankala, Ramesh Jois, Vivek Vasdev, YL Ramachandra, Nandini A Sahasrabuddhe, TS Keshava Prasad, Sujatha Mohan, Harsha Gowda, Subramanian Shankar, Akhilesh Pandey

Osteoarthritis is a chronic musculoskeletal disorder characterized mainly by progressive degradation of the hyaline cartilage. Patients with osteoarthritis often postpone seeking medical help, which results in the diagnosis being made at an advanced stage of cartilage destruction. Sustained efforts are needed to identify specific markers that might help in early diagnosis, monitoring disease progression and in improving therapeutic outcomes. We employed a multipronged proteomic approach, which included multiple fractionation strategies followed by high resolution mass spectrometry analysis to explore the proteome of synovial fluid obtained from osteoarthritis patients. In addition to the total proteome, we also enriched glycoproteins from synovial fluid using lectin affinity chromatography.