Therapeutic effects of an azaphenothiazine derivative in mouse experimental colitis
Jolanta Artym , Maja Kocięba , Ewa Zaczyńska , Michał Zimecki , Wojciech Kałas , Leon Strządała , Alicja Pawlak , Małgorzata Jeleń , Beata Morak-Młodawska , Stanisław Pluta , Katarzyna Kaleta-Kuratewicz , Jan Madej , Piotr Kuropka , Jan Kuryszko
AbstractPhenothiazines represent a class of compounds of potential therapeutic utility. In this report we evaluated therapeutic value of an azaphenothiazine derivative, 6-acetylaminobutyl-9-chloroquino[3,2-b]benzo[1,4]thiazine (QBT), given intragastrically, in the model of dextran sodium sulfate-induced colitis in C57BL/6 mice using 5-aminosalicylic acid (5-ASA) as a reference drug. Colitis symptoms such as body weight loss, diarrhea and hematochezia (blood in stool) were observed and registered and disease activity index (DAI) was calculated. In addition, weight and cell numbers in the lymphatic organs and histological parameters of the colon wall were analyzed. The effects of QBT on viability of colon epithelial cell lines were also determined. We showed that weight and cell number of draining mesenteric lymph nodes were lower in mice treated with QBT in comparison to their control counterparts. The number of thymocytes, drastically reduced in control mice, was elevated in mice treated with the compounds with a significant effect of 5-ASA. In addition, an abnormal composition of blood cell types was partially corrected in these groups. Histological analysis of the colon revealed that the pathological changes were partially normalized by QBT and even to a higher degree by 5-ASA. In conclusion we demonstrated a therapeutic efficacy of the compound in amelioration of local and systemic pathological changes associated with chemically-induced colitis in mice. A possible mechanism of action of the compound is discussed.
|Journal series||Histology and Histopathology, ISSN 0213-3911, e-ISSN 1699-5848, (N/A 70 pkt)|
|Publication size in sheets||0.5|
|Score||= 70.0, 14-09-2020, ArticleFromJournal|
|Publication indicators||= 0; = 0; : 2018 = 0.583; : 2018 = 1.777 (2) - 2018=1.717 (5)|
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