<unk>  is an autoimmune disorder. Anti-RNP antibodies develop against RNP when RNP is found outside of the nucleus. RNP is immunologically protected due to its location, however if a cell dies and RNP is no longer contained in the nucleus and thus unprotected, the immune system can respond by forming antibodies due to cellular mimicry. Risk to develop<unk>  can increase if the body has exposed to molecules or viruses with a similar structure to RNP in the past. There are currently no known environmental factors or triggers contributing to<unk> .It has been associated with HLA-DR4.
Mixed connective tissue disease
Carnitine palmitoyltransferase II
Undifferentiated connective tissue disease
Scleroderma
Systemic scleroderma
Antisynthetase syndrome
CREST syndrome
Cryopyrin-associated periodic syndrome