Homogeneous staining of the nucleus with greater intensity at its outer rim and no staining at the metaphase and anaphase chromatin plates. There is a peculiar accentuation of the fluorescence at the points where adjacent cells touch each other. e.g. anti-lamin B.
lamins A,B,C, or lamin-associated proteins
SLE, SjS, seronegative arthritis
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The AC-11 pattern is infrequently found in routine autoantibody testing and has been described in autoimmune-cytopenias, autoimmune liver diseases, linear scleroderma, APS, and SARD; current information on clinical associations is based mainly on case reports and small cohorts.
Antigens recognized include lamins (A, B, C) and LAP-2; specific immunoassays for these autoantibodies are currently not commercially available.
Coppo P, Clauvel JP, Bengoufa D, et al. Autoimmune cytopenias associated with autoantibodies to nuclear envelope polypeptides. Am J Hematol 2004;77:241–9.
Konstantinov K, Foisner R, Byrd D, et al. Integral membrane proteins associated with the nuclear lamina are novel autoimmune antigens of the nuclear envelope. Clin Immunol Immunopathol 1995;74:89–99.
Reeves WH, Chaudhary N, Salerno A, et al. Lamin B autoantibodies in sera of certain patients with systemic lupus erythematosus. J Exp Med 1987;165:750–62.