Journal: Bioactive Materials

Article Title: Dynamic feedback BacGuard anchors microbial metabolism to host symbiosis in real-time ulcerative colitis therapy

doi: 10.1016/j.bioactmat.2026.05.060

Figure Lengend Snippet: BacGuard promotes colon tissue repairment. a) Scheme of microbiota-dependent epithelial repair mechanism orchestrated by BacGuard. b) Short-chain fatty acid (SCFA) profile alterations. n = 6. c) BacGuard-induced probiotic proliferation and d) quantitative results. n = 3. e) Immunofluorescence analysis of ILC3 (ROR γt + CD3 − cells) in colon tissue. f) Flow cytometric analysis of lamina propria lymphocytes (ROR γt + ). n = 3. g) Concentration of IL-22 in MNK-3 cells. n = 3. h) Representative PAS-staining (upper panel) and MUC-2 immunohistochemistry (lower panel) images of colon tissues. n = 5. ns, not significant; ∗p < 0.05, ∗∗p < 0.01 and ∗∗∗p < 0.001.

Article Snippet: For the detection of IL-22 and LPS concentrations, the Mouse IL-22 Precoated ELISA Kit (DAKEWE, China) and Mouse LPS ELISA Kit (JONLNBIO, China) were employed correspondingly.

Techniques: Immunofluorescence, Concentration Assay, Staining, Immunohistochemistry

Journal: Molecular Biomedicine

Article Title: Activating Cannabinoid receptor 2 alleviates iron overload-induced liver damage via dual modulation of STAT3/hepcidin and Nrf2/FPN1 pathways

doi: 10.1186/s43556-026-00541-1

Figure Lengend Snippet: Pharmacological CB2R activation limits hepatic iron accumulation by modulating the hepcidin-FPN1 axis. a Representative Prussian blue staining of liver sections from pharmacological treatment groups (black arrows indicate positive blue iron deposits; scale bars = 100 and 20 µm). b Liver iron concentrations quantified using a ferrozine-based assay ( n = 4). c Serum ferritin levels determined using ELISA ( n = 5). d Serum hepcidin levels using ELISA ( n = 6). e Hepatic HAMP mRNA expression determined by qRT-PCR ( n = 5). f Representative Western blots of iron-related proteins FPN1, FTH, and FTL in the liver across different treatment groups, with β-actin as the loading control. * P < 0.05, ** P < 0.01, *** P < 0.001. Data are presented as the mean ± SD for each group. Individual data points are displayed as dots

Article Snippet: The mouse serum Ferritin elisa kit (41-FERMS-E01) was purchased from ALPCO (Beijing, China).

Techniques: Activation Assay, Staining, Ferrozine Assay, Enzyme-linked Immunosorbent Assay, Expressing, Quantitative RT-PCR, Western Blot, Control

Journal: Non-coding RNA Research

Article Title: CircSMAD4 shapes matrix-remodeling TAMs in lung adenocarcinoma

doi: 10.1016/j.ncrna.2026.03.003

Figure Lengend Snippet: circSMAD4 drives tumor-educated M2-like polarization of macrophages and promotes tumor-cell aggressiveness. (A) Workflow for generating TC-hMDMs and TC-BMDMs, circSMAD4 knockdown, and downstream functional assays. (B) RT–qPCR analysis of M1-associated markers (MHC-II [HLA-DRA in TC-hMDMs; H2-Ab1 in TC-BMDMs], NOS2, and CD86) and M2-associated markers (CD163, CD206, and ARG1) in TC-hMDMs and TC-BMDMs. (C) Representative flow-cytometry histograms for HLA-DR, iNOS, CD86, CD163, CD206, and ARG1 in TC-hMDMs. Gating strategy and marker thresholds were defined based on FMO controls (see ). (D) Flow-cytometry quantification of marker-positive cells in TC-hMDMs and TC-BMDMs. (E) ELISA of IL-10, TGF-β, and iNOS in culture supernatants. (F) CCK-8 assays of A549 and LLC cells. (G) Colony-formation assays of A549 and LLC cells with quantification. (H) Bioluminescence-based growth readouts of patient-derived LUAD organoids (PDO #1 and PDO #2) after co-culture with TC-hMDMs. (I) Immunoblot analysis of EMT-related proteins (E-cadherin, N-cadherin, Vimentin) in A549 and LLC cells. (J) Transwell migration and invasion assays of A549 and LLC cells with quantification. Scale bar, 50 μm. ∗P < 0.05; ∗∗P < 0.01; ∗∗∗P < 0.001; ∗∗∗∗P < 0.0001; ns, not significant.

Article Snippet: For mouse experiments, mouse IL-10 was measured using the Mouse IL-10 ELISA Kit (R&D Systems, Cat# M1000B), and mouse TGF-β1 was measured using the Mouse TGF beta-1 ELISA Kit (Invitrogen, Cat# BMS608-4), following the manufacturers’ instructions.

Techniques: Knockdown, Functional Assay, Quantitative RT-PCR, Flow Cytometry, Marker, Enzyme-linked Immunosorbent Assay, CCK-8 Assay, Derivative Assay, Co-Culture Assay, Western Blot, Migration

Journal: Bioactive Materials

Article Title: Glucose/ROS-responsive and redox-gated adaptive hydrogel dressing for accelerating diabetic wound repair via synergistic cGAS/STING pathway inhibition and oxidative stress alleviation

doi: 10.1016/j.bioactmat.2026.03.025

Figure Lengend Snippet: Angiogenesis and collagen deposition in diabetic wound tissues following HPSL@SG hydrogel treatment. (A) Dihydroethidium (DHE) immunofluorescence staining and (B) semi-quantitative analysis of wound tissues from each treatment group on day 7, scale bar = 100 μm. Immunofluorescence staining of (C) MMP-9, IL-6, and IL-10, and (D) CD31, VEGF-A, and collagen I in wound tissue sections from each treatment group on day 7, scale bar = 100 μm. (E-J) Mean relative fluorescence intensity of each indicator in wound tissue sections from each treatment group on day 7, scale bar = 100 μm. All data are shown as mean ± SEM (n = 6).

Article Snippet: IL-6 and IL-10-specific antibodies were purchased from Bosterbio (Wuhan, China).

Techniques: Immunofluorescence, Staining, Fluorescence