To assess the severity of aGvHD, special markers may be considered, such as fecal alpha-1 antitrypsin, fecal calprotectin, TIM3, sTNFR1, ST2,
IL26, and Reg3alpaa (19).
The former is specific for the IFNL receptor (IFNLR), while the latter is shared with the type II cytokine receptors for IL-10, IL-22, and
IL26 [45].
In addition, the expression of 7 cytokines genes (IL-22, VEGFA,
IL26, CXCL14, BMPER, IL-17D, and CCL20) and 16 receptor genes (IL-22RA1, CXCR3, IL-17RC, IL-1RAPL2, IFITM5, NRG2, TNFRSF14, LEPREL2, IL-11RA, LTBP2, ILDR1, IL-17RD, MC1R, IL-22RA2, LEPREL1, and LILRA5) were significantly downregulated by 3.6- to 5.7-fold and 2.14- to 9.12-fold, respectively with p < 0.01 and fold [greater than or equal to] 2 (Figures 4 and 5).
Nearby genes implicated as possibly playing a role in ulcerative colitis include the ring finger protein 186 (RNF186), OTU domain containing 3 (OTUD3), and phospholipase A2, group IIE (PLA2G2E) - genes on chromosome 1p36, and the interferon, gamma (IFNG), interleukin 26 (
IL26), and interleukin 22 (IL22) genes on chromosome 12q15 that play an important role in inflammation.
Human T17 cells express retinoic acid receptor-related orphan receptor (ROR)C and produce, besides IL-17A, also IL-17F, IL-21, IL-22, and
IL26 [7, 8].
According to them, nearby genes implicated as possibly playing a role in ulcerative colitis include the ring finger protein 186 (RNF186), OTU domain containing 3 (OTUD3), and phospholipase A2, group IIE (PLA2G2E) - genes on chromosome 1p36, and the interferon, gamma (IFNG), interleukin 26 (
IL26), and interleukin 22 (IL22) genes on chromosome 12q15.