cytokine production in healthy controls versus patients with quiescent CD.

<p>Cytokine levels (pg/ml) are presented as medians with the interquartile range [IQR]. TNF-α, Tumor necrosis factor alpha; IL, Interleukin; IQR, interquartile range; CD, Crohn's disease.</p><p>cytokine production in healthy controls versus patients with quiescent CD.</p

Cytokine production and disease characteristics.

<p>Cytokine levels (pg/ml) are presented as medians with the interquartile range [IQR]. HC, Healthy control; TNF-α, Tumor necrosis factor alpha; IL, Interleukin; L1, ileal disease; L2, colonic disease; L3, ileocolonic disease; P-, no peri-anal disease; P+, peri-anal disease; IQR, interquartile range.</p><p>Cytokine production and disease characteristics.</p

Primer sequences and conditions for the TNF-α promoter gene.

<p>Mg_: Magnesium concentration.</p><p>Primer sequences and conditions for the TNF-α promoter gene.</p

Relation between cytokine production and disease severity.

<p>Values are presented as medians (pg/ml) with the interquartile range. For the number of bowel resections and treatment exposure patients were dichotomized in a low and high group according to the number of resections or the percentage of years in which they were treated with steroids, thiopurines, biologicals, methotrexate or cyclosporine, corrected for disease duration. Two patients were excluded for the analysis for treatment exposure, because no complete drug history was available. TNF-α, Tumor necrosis factor alpha; IL, Interleukin; L1, ileal disease; L3, ileocolonic disease; P-, no fistulas; P+, fistulating disease.</p

Baseline characteristics of the included patients with CD and HC.

<p>CD, Crohn’s disease; HC, healthy controls; SD, standard deviation; 5-ASA, 5-aminosalicylic acid.</p><p>Baseline characteristics of the included patients with CD and HC.</p

Galectin-1 induces a tumor-associated macrophage phenotype and upregulates indoleamine 2,3-dioxygenase-1

Summary: Galectins are a group of carbohydrate-binding proteins with a presumed immunomodulatory role and an elusive function on antigen-presenting cells. Here we analyzed the expression of galectin-1 and found upregulation of galectin-1 in the extracellular matrix across multiple tumors. Performing an in-depth and dynamic proteomic and phosphoproteomic analysis of human macrophages stimulated with galectin-1, we show that galectin-1 induces a tumor-associated macrophage phenotype with increased expression of key immune checkpoint protein programmed cell death 1 ligand 1 (PD-L1/CD274) and immunomodulator indoleamine 2,3-dioxygenase-1 (IDO1). Galectin-1 induced IDO1 and its active metabolite kynurenine in a dose-dependent manner through JAK/STAT signaling. In a 3D organotypic tissue model system equipped with genetically engineered tumorigenic epithelial cells, we analyzed the cellular source of galectin-1 in the extracellular matrix and found that galectin-1 is derived from epithelial and stromal cells. Our results highlight the potential of targeting galectin-1 in immunotherapeutic treatment of human cancers