CENPS and systemic sclerosis: Among these autoantibodies, anti-scleroderma 70 (anti-Scl-70) or anti-double-stranded DNA topoisomerase 1 (anti-TOPO-1), and anti-centromere proteins (anti-CENPs) are the marker autoantibodies of the patients with SSc and its variant, CREST syndrome (acronymed from calcinosis, Raynaud’s phenomenon, esophageal dysmotility, sclerodactidy, and telangiectasis).