TET2 and type 1 diabetes mellitus: However, there was increased TET2 expression in the nuclear and cytoplasm in β cells from a patient with autoimmune pancreatitis (with cellular immune infiltrates) (Fig. 2a(b)), as well as a patient with T1D autoantibodies but not diagnosed with T1D (Fig. 2a(c)), and patients with recent-onset T1D (Fig. 2a(d)).