02534nas a2200253 4500000000100000008004100001260002300042653001600065653001900081100001400100700001700114700001300131700001500144700001300159700001300172700001900185700001500204245010400219856016900323300001200492490000900504520175300513022001402266 2020 d bInforma UK Limited10aDermatology10aFlow Cytometry1 aFarag AGA1 aEl Askary SA1 aFathy WM1 aElbassal F1 aAzzam AA1 aTayel NR1 aAbdul Karim SS1 aShehata WA00aRelationship Between sCD163 and mCD163 and Their Implication in the Detection and Typing of Leprosy uhttps://www.dovepress.com/front_end/cr_data/cache/pdf/download_1592480001_5eeb510139d78/ccid-240420-relationship-between-scd163-and-mcd163-and-their-implication.pdf a379-3890 v20203 aBackground: Leprosy is a chronic contagious disease caused by Mycobacterium lepraea. CD163 is a monocyte trans-membrane glycoprotein receptor (mCD163) that sheds from the cell surface and circulates as a soluble (serum) form (sCD163). Changes in the mCD163 and sCD163 levels could mirror the categorization of inflammatory procedure, demonstrating a possible use of CD163 as a diagnostic indicator of inflammation.

Objective: To investigate the possible role of CD163 (sCD163 and mCD163) in leprosy pathogenesis and to assess whether CD163 is a helpful inflammatory marker of leprosy development and typing.

Patients and Methods: This case control study included 70 leprosy patients and 30 healthy controls. Leprosy patients were classified according to the Madrid criteria (1953) into: tuberculoid leprosy (TT), border-line leprosy (BL), and lepromatous leprosy (LL). For all participants, complete blood count (CBC), serum CD163 using ELISA and monocytes positive for CD163 using flow cytometry were done.

Results: Leprosy patients had significantly low WBCs and platelet counts (p< 0.001) and had significantly higher sCD163 (p=0.025) and mCD163 (p=0.042) that were highest in LL followed by BL, then TT patients (p< 0.001). There was a significant positive correlation between mCD163 and sCD163 levels in leprosy patients (r=0.896, p< 0.001). ROC analysis revealed a significant role of serum sCD163 and of mCD163 positive monocytes in the detection (p< 0.001) and typing of leprosy (p=0.002 and p< 0.001, respectively).

Conclusion: Both sCD163 and mCD163 positive monocytes may have an active role in leprosy pathogenesis. They could be potential biomarkers for leprosy detection and typing. a1178-7015