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Pillai VS, Kundargi RR, Edathadathil F, Nair S, Thilak J, Mathew RA, Xavier T, Shenoy P, Menon KN. Identification of prolargin expression in articular cartilage and its significance in rheumatoid arthritis pathology. Int J Biol Macromol 2018; 110:558-566. [PMID: 29402456 DOI: 10.1016/j.ijbiomac.2018.01.141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 01/10/2018] [Accepted: 01/20/2018] [Indexed: 10/18/2022]
Abstract
Qualitative 2D gel-electrophoresis (2DE) protein profiling for osteoarthritis (OA) and rheumatoid arthritis (RA) is challenging because of selective protein loss due to discrepancies in protein precipitation methodologies. Thus, we aimed at developing qualitative protein representation from OA/RA articular cartilage without protein precipitation towards identification of clinically relevant proteins. Chondroitinase digested human articular cartilages from RA patients were subjected to protein extraction using guanidinium hydrochloride (GuHCl) or 8 M urea with 10 or 2% ASB-14-4 or 0.45 M urea with 2% ASB-14-4 with cetylpyridinium chloride (CPC). The GuHCl extract is further protein precipitated with acetone or ammonium acetate-methanol or centricon-fractionated using 100 kDa cut filters and protein precipitated using ethanol. Processed extracts were subjected to 2DE to identify protein profiles. Poor proteins representations were observed in 2D gels with protein precipitated samples compared to qualitative protein representations seen in 2D gels of 0.45 M urea and 2%ASB-14-4 extraction procedure reproducibly. The strategy circumventing protein precipitation generated qualitative 2D gels. RA vs OA gel comparison showed elevated prolargin levels in RA with biglycan levels remaining unaltered. Up regulation of prolargin in RA suggests the likelihood of an adaptive mechanism to control the increased osteoclastogenesis in RA and may have therapeutic value in controlling the disease.
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Affiliation(s)
- Vinod Soman Pillai
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Amrita Lane, Ponekkara, Kochi, 682041, Kerala, India
| | - Rameshwari R Kundargi
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Amrita Lane, Ponekkara, Kochi, 682041, Kerala, India
| | - Fabia Edathadathil
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Amrita Lane, Ponekkara, Kochi, 682041, Kerala, India
| | - Sreepriya Nair
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Amrita Lane, Ponekkara, Kochi, 682041, Kerala, India
| | - Jai Thilak
- Department of Orthopaedics, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Amrita Lane, Ponekkara, Kochi, 682041, Kerala, India
| | - Roshini Anney Mathew
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Amrita Lane, Ponekkara, Kochi, 682041, Kerala, India
| | - Tessy Xavier
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Amrita Lane, Ponekkara, Kochi, 682041, Kerala, India
| | - Padmanabha Shenoy
- Department of Rheumatology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Amrita Lane, Ponekkara, Kochi, 682041, Kerala, India.
| | - Krishnakumar N Menon
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Amrita Lane, Ponekkara, Kochi, 682041, Kerala, India.
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Rasaputra KS, Liyanage R, Lay JO, McCarthy FM, Rath NC. Tibial Dyschondroplasia–Associated Proteomic Changes in Chicken Growth Plate Cartilage. Avian Dis 2010; 54:1166-71. [DOI: 10.1637/9384-050110-reg.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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