Journal: Investigative Ophthalmology & Visual Science

Article Title: Corneal Nerves Promote Alkali Burn Repair by Modulating Macrophages and Neutrophils via Calcitonin Gene-Related Peptide

doi: 10.1167/iovs.67.4.60

Figure Lengend Snippet: CGRP suppresses corneal tissue inflammation following alkali burn. ( A ) The volcano plot displayed the upregulated and downregulated genes in the corneas of mice from the CGRP-treated group compared with the PBS-treated group at 7 days post-injury ( n = 3). ( B ) The heatmap showed the differentially expressed genes in the corneas of mice from the CGRP-treated group compared with the PBS-treated group at 7 days post-injury ( n = 3). ( C ) The mRNA expression of the inflammatory factors IL-1β, iNOS, MCP-1, MMP3, and MMP9 was detected by qPCR on day 7 post-injury following CGRP treatment ( n = 4). ( D, E ) Representative flow cytometry plots and bar charts of CD45+ cells in the cornea after 7 days of treatment with CGRP following injury. ( F, G ) Representative micrographs and bar charts of macrophages in the cornea after 7 days treatment with topical CGRP or PBS ( n = 4). ( H ) Corneal macrophages were determined by flow cytometry ( n = 4). ( I, J ) Representative flow cytometry plots and bar charts of CD206+ macrophages in the cornea of the CGRP treatment group ( n = 4). ( K, L ) Representative micrographs and bar charts of neutrophils in the cornea after 7 days treatment with topical CGRP or PBS ( n = 4). (M) Corneal neutrophils were determined by flow cytometry ( n = 4). Data are shown as mean ± SD. ns: not significant; * P < 0.05; ** P < 0.01; *** P < 0.001.

Article Snippet: We dissolved CGRP powder (HY-P0203; MedChenExpress) in sterile PBS to a final concentration of 50 μM, aliquoted it, and stored it at –80°C.

Techniques: Expressing, Flow Cytometry

Journal: Investigative Ophthalmology & Visual Science

Article Title: Corneal Nerves Promote Alkali Burn Repair by Modulating Macrophages and Neutrophils via Calcitonin Gene-Related Peptide

doi: 10.1167/iovs.67.4.60

Figure Lengend Snippet: Expression of the CGRP receptor in neutrophils and macrophages, and transcriptomic analysis of macrophages following CGRP treatment in vitro. ( A, B ) Light microscope image of bone marrow-derived macrophages and bone marrow-derived neutrophils ( n = 4). ( C ) CALCRL and RAMP1 expression was detected in bone marrow-derived macrophages and neutrophils using immunostaining. Green = CALCRL, red = RAMP1 ( n = 4). ( D ) Heatmap of selected significantly upregulated and downregulated genes depicting standardized gene expression values in CGRP-treated cells compared to PBS-treated cells. The colored circles next to the heatmap denote gene functions. ( E ) Volcano plot displaying upregulated and downregulated genes in macrophages from the CGRP-treated group versus the PBS-treated group. ( F ) GO enrichment analysis of significantly upregulated ( red ) and downregulated ( blue ) genes in CGRP-treated and saline-treated macrophages.

Article Snippet: We dissolved CGRP powder (HY-P0203; MedChenExpress) in sterile PBS to a final concentration of 50 μM, aliquoted it, and stored it at –80°C.

Techniques: Expressing, In Vitro, Light Microscopy, Derivative Assay, Immunostaining, Gene Expression, Saline

Journal: Investigative Ophthalmology & Visual Science

Article Title: Corneal Nerves Promote Alkali Burn Repair by Modulating Macrophages and Neutrophils via Calcitonin Gene-Related Peptide

doi: 10.1167/iovs.67.4.60

Figure Lengend Snippet: CGRP suppresses corneal tissue inflammation following alkali burn. ( A ) The volcano plot displayed the upregulated and downregulated genes in the corneas of mice from the CGRP-treated group compared with the PBS-treated group at 7 days post-injury ( n = 3). ( B ) The heatmap showed the differentially expressed genes in the corneas of mice from the CGRP-treated group compared with the PBS-treated group at 7 days post-injury ( n = 3). ( C ) The mRNA expression of the inflammatory factors IL-1β, iNOS, MCP-1, MMP3, and MMP9 was detected by qPCR on day 7 post-injury following CGRP treatment ( n = 4). ( D, E ) Representative flow cytometry plots and bar charts of CD45+ cells in the cornea after 7 days of treatment with CGRP following injury. ( F, G ) Representative micrographs and bar charts of macrophages in the cornea after 7 days treatment with topical CGRP or PBS ( n = 4). ( H ) Corneal macrophages were determined by flow cytometry ( n = 4). ( I, J ) Representative flow cytometry plots and bar charts of CD206+ macrophages in the cornea of the CGRP treatment group ( n = 4). ( K, L ) Representative micrographs and bar charts of neutrophils in the cornea after 7 days treatment with topical CGRP or PBS ( n = 4). (M) Corneal neutrophils were determined by flow cytometry ( n = 4). Data are shown as mean ± SD. ns: not significant; * P < 0.05; ** P < 0.01; *** P < 0.001.

Article Snippet: We dissolved CGRP powder (HY-P0203; MedChenExpress) in sterile PBS to a final concentration of 50 μM, aliquoted it, and stored it at –80°C.

Techniques: Expressing, Flow Cytometry

Journal: Investigative Ophthalmology & Visual Science

Article Title: Corneal Nerves Promote Alkali Burn Repair by Modulating Macrophages and Neutrophils via Calcitonin Gene-Related Peptide

doi: 10.1167/iovs.67.4.60

Figure Lengend Snippet: Expression of the CGRP receptor in neutrophils and macrophages, and transcriptomic analysis of macrophages following CGRP treatment in vitro. ( A, B ) Light microscope image of bone marrow-derived macrophages and bone marrow-derived neutrophils ( n = 4). ( C ) CALCRL and RAMP1 expression was detected in bone marrow-derived macrophages and neutrophils using immunostaining. Green = CALCRL, red = RAMP1 ( n = 4). ( D ) Heatmap of selected significantly upregulated and downregulated genes depicting standardized gene expression values in CGRP-treated cells compared to PBS-treated cells. The colored circles next to the heatmap denote gene functions. ( E ) Volcano plot displaying upregulated and downregulated genes in macrophages from the CGRP-treated group versus the PBS-treated group. ( F ) GO enrichment analysis of significantly upregulated ( red ) and downregulated ( blue ) genes in CGRP-treated and saline-treated macrophages.

Article Snippet: We dissolved CGRP powder (HY-P0203; MedChenExpress) in sterile PBS to a final concentration of 50 μM, aliquoted it, and stored it at –80°C.

Techniques: Expressing, In Vitro, Light Microscopy, Derivative Assay, Immunostaining, Gene Expression, Saline

Journal: Frontiers in Cell and Developmental Biology

Article Title: CGRP-mediated neuro-vascular-pulp cell crosstalk is essential for dental pulp repair

doi: 10.3389/fcell.2026.1793692

Figure Lengend Snippet: CGRP Promotes Angiogenesis in HUVECs and Pulp Repair via Upregulation of CD31/VEGFA (A) Representative images of tube formation assays using HUVECs treated with or without CGRP. Scale bar, 500 µm. (n = 3, *p < 0.05, **p < 0.01 vs. NC group). (B) ​ Representative images of scratch wound healing assays of HUVECs at 0,12 and 24 h post-CGRP treatment and quantitative analysis of wound closure rate. Scale bar, 100 µm. (n = 3, *p < 0.05 vs. NC group). (C) ​ qRT-PCR and Western blot analysis of CD31 and VEGFA levels in HUVECs. (n = 3, **p < 0.01, ***p < 0.001 vs. NC group). (D) ​ Representative immunofluorescence images showing CD31 + blood vessels (red) in the injured pulp region of mice treated with either vehicle (NC) or the CGRP receptor antagonist BIBN4096BS. Nuclei are counterstained with DAPI (blue). Scale bar, 50 µm. Green dashed line, dentin injury (cavity). Green arrow, region of interest (ROI) in the pulp horn beneath the injury site, where vascular changes were analyzed. (E) ​ CGRP-activated endothelial cells promote the mineralization of DPSCs via a paracrine mechanism. (n = 3, **p < 0.01vs. NC group).

Article Snippet: The CGRP receptor antagonist BIBN4096BS was purchased from Shanghai Haoyuan Chemexpress Co. (Shanghai, China).

Techniques: Quantitative RT-PCR, Western Blot, Immunofluorescence