Internal medicine (Tokyo, Japan) · 2022
Chronic Enteropathy Associated with Solute Carrier Organic Anion Transporter Family, Member 2A1 (SLCO2A1) with Positive Immunohistochemistry for SLCO2A1 Protein.
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Ariake Chizuru, Hosoe Naoki, Sakurai Hinako, Tojo Anna, Hayashi Yukie, Jl Limpias Kamiya Kenji, Sujino Tomohisa, Takabayashi Kaoru, Kosaki Kenjiro, Seki Satowa, Hisamatsu Tadakazu, Ogata Haruhiko, Kanai Takanori
Аннотация
Chronic enteropathy associated with solute carrier organic anion transporter family, member 2A1 (SLCO2A1) (CEAS) is a rare autosomal recessive hereditary disease characterized by chronic persistent anemia and hypoproteinemia. Its diagnosis typically requires a genetic analysis. The efficacy of immunohistochemical staining with SLCO2A1 polyclonal antibody as a pre-diagnostic tool for CEAS has been previously reported. We herein report a patient with CEAS in whom immunohistochemical staining confirmed SLCO2A1 protein expression. The immunopositive results may have been due to nonsense-mediated RNA decay. As immunohistochemical staining of SLCO2A1 protein may show immunopositive results, a genetic analysis should also be performed when CEAS is strongly clinically suspected.