DDR2 alleviates retinal vaso-obliteration and pathological neovascularization by modulating microglia M1/M2 phenotypic polarization in a mouse model of proliferative retinopathy DOI Creative Commons
Qinjin Dai, Wenqi Su, Zhongcheng Zhou

et al.

Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease, Journal Year: 2025, Volume and Issue: 1871(5), P. 167787 - 167787

Published: March 9, 2025

Retinopathy of prematurity (ROP), a leading cause blindness in premature infants, is characterized by retinal vaso-obliteration during hyperoxia and pathological neovascularization (NV) relative hypoxia phase. Current treatments, which focus on the late stages neovascularization, are associated with numerous side effects. Studies demonstrated that discoidin domain receptor 2 (DDR2), collagen-binding tyrosine kinase, inhibits experimental choroidal participates tumor angiogenesis. However, role DDR2 ROP underlying mechanisms unclear. In this study, we initially found expressed mouse physiological vascular development significantly decreased phase followed increase oxygen-induced retinopathy (OIR) model. Early upregulation before attenuates vaso-obliteration, reduces promotes maturation. Additionally, increased number microglia around blood vessels induced anti-inflammatory M2 polarization. Furthermore, STAT6/TGF-β signaling pathway suppressed was activated after upregulation. conclusion, attenuated inhibited switching polarization from M1 to phenotype via OIR. This suggests could be novel target for early treatment ROP.

Language: Английский

In-situ porcine corneal matrix hydrogel as ocular surface bandage DOI Creative Commons
Ghasem Yazdanpanah,

Ritu Shah,

Sri Raghurama R Somala

et al.

The Ocular Surface, Journal Year: 2021, Volume and Issue: 21, P. 27 - 36

Published: April 22, 2021

Language: Английский

Citations

30

Enhancing Corneal Sensitivity in Diabetic Patients Through an Innovative Ophthalmic Solution: In Vivo and Vitro Results DOI Open Access
Fabio Scarinci, Giovanna De Simone, Chiara Ciancimino

et al.

Journal of Clinical Medicine, Journal Year: 2025, Volume and Issue: 14(1), P. 245 - 245

Published: Jan. 3, 2025

Background/Objectives: Diabetes is a well-recognised factor inducing plethora of corneal alterations ranging from dry eye to reduced sensibility, epithelial defects, and cicatrisation. This cohort study aimed assess the efficacy novel ophthalmic solution combining cross-linked hyaluronic acid (CHA), chondroitin sulfate (CS), inositol (INS) in managing diabetes-induced alterations. Specifically, it evaluated solution’s impact on tear breakup time (TBUT), ocular surface disease index (OSDI), sensitivity after three months treatment. Additionally, potential promote wound healing was examined. Methods: Two different populations were retrieved database; first one composed 20 diabetic subjects treated for with CAH-CS (OPHTAGON srl, Rome, Italy), while second group who did not want use any lubricant or other The outcome measures TBUT, OSDI score, measured using Cochet–Bonnet aesthesiometer. To investigate wound-healing properties, vitro tests conducted two cell lines, comparing results scratch without solution. Results: indicate that CHA-CS significantly improved film stability, as evidenced by an increased TBUT reduction symptoms reflected lower scores. Moreover, associated enhanced patients. In assays, promoted motility, suggesting supportive role tissue repair compared untreated cells. Conclusions: Collectively, suggest could serve innovative tool treatment patients delayed sensitivity. Clinical trial registration number: Trial.gov NCT06573606.

Language: Английский

Citations

0

CD44/Integrin β1 Association Drives Fast Motility on Hyaluronic Acid Substrates DOI
Tanusri Roy, Sarbajeet Dutta, Swetlana Ghosh

et al.

Journal of Cellular Physiology, Journal Year: 2025, Volume and Issue: 240(1)

Published: Jan. 1, 2025

ABSTRACT In addition to proteins such as collagen (Col) and fibronectin, the extracellular matrix (ECM) is enriched with bulky proteoglycan molecules hyaluronic acid (HA). However, how ECM proteoglycans collectively regulate cellular processes has not been adequately explored. Here, we address this question by studying cytoskeletal focal adhesion organization dynamics on cells cultured polyacrylamide hydrogels functionalized Col, HA a combination of Col (Col/HA). We show that fastest migration substrates attributed presence smaller weaker adhesions. Integrin 1 co‐localization its association CD44—which receptor for HA, insensitivity cell spreading RGD suggests adhesions are formed via integrin bound CD44. Consistent this, formation motility were inhibited when CD44 was knocked out. Collectively, our results suggest drives fast substrates.

Language: Английский

Citations

0

Identification of an Immunoglobulin Paratope Binding to Keratan Sulfate and Expression of a Single-Chain Derivative for Imaging DOI Creative Commons
Burak Boyraz, R Tauber, Jens Dernedde

et al.

Biomolecules, Journal Year: 2025, Volume and Issue: 15(2), P. 178 - 178

Published: Jan. 25, 2025

Keratan sulfate (KS) is a negatively charged carbohydrate linked to proteins. Several KS-bearing structural glycosaminoglycans participate maintain the homeostasis of functional extracellular matrix. Dysfunction its biochemical composition and structure might therefore lead pathological situations. For this reason, imaging KS in tissues an important diagnostic tool. Here, we describe identification paratope derived from ancestral anti-KS IgG mAb MZ15, as well engineering, recombinant expression E. coli, purification single-chain variable fragment (ScFv). The ScFv enabled vitro cryosections rat cornea by immunofluorescence microscopy comparable MZ15.

Language: Английский

Citations

0

Heterodimeric vipoxin and its individual monomeric subunits display a dynamic structure-function relationship on RPE cells DOI

Yulia Petsevа,

Kirilka Mladenova, María Ganeva

et al.

Archives of Biochemistry and Biophysics, Journal Year: 2025, Volume and Issue: 768, P. 110351 - 110351

Published: Feb. 18, 2025

Language: Английский

Citations

0

Effect of Decorin and Aligned Collagen Fibril Topography on TGF-β1 Activation of Corneal Keratocytes DOI Creative Commons
Nathaniel S. Tjahjono, Divya Subramanian,

Tarik Shihabeddin

et al.

Bioengineering, Journal Year: 2025, Volume and Issue: 12(3), P. 259 - 259

Published: March 5, 2025

During corneal wound healing, transforming growth factor-beta 1 (TGF-β1) causes differentiation of quiescent keratocytes into myofibroblasts. Decorin has been investigated as a promising anti-fibrotic therapeutic for healing due to its interaction with TGF-β1, collagen, and cell surface receptors. In this study, novel microfluidic method coating aligned collagen fibrils decorin was developed mimic the presence within stroma. found bind selectively remained bound at least five days. To investigate effects coatings on keratocyte activation, primary rabbit were cultured in TGF-β1 5 days substrates or without stained α-smooth muscle actin (α-SMA). The expression α-SMA reduced by similar amounts monomeric (40%), random (32%), (32%) coated controls. However, differentially expressed between not decorin, significantly lower uncoated compared monomers. Addition directly culture media, had limited effect reducing myofibroblast differentiation. Taken together, these results demonstrate importance topography ECM composition activation.

Language: Английский

Citations

0

Influence of the Silkworm-Derived (Bombyx mori) Functional Substance (Silkrose-BM) on the Fish Meat Quality of Yellowtail (Seriola quinqueradiata) DOI Creative Commons

Athira Athira,

H. Nishiguchi, Daichi Hayashi

et al.

Fishes, Journal Year: 2025, Volume and Issue: 10(3), P. 130 - 130

Published: March 17, 2025

Popular foods such as sushi and sashimi depend on the quality of raw fish meat to maintain consumer satisfaction. Recently, dietary insect meal insect-derived substances have been extensively studied for application in aquaculture a protein alternative or immunostimulant. However, impact functional teleosts remains unclear. Here, we investigated influence inclusion silkrose-BM, novel bioactive polysaccharide derived from silkworm, Bombyx mori, yellowtail (Seriola quinqueradiata). This study was conducted by comparing two groups given different feeds, commercial EP feeds containing Silkrose-BM (0.1%), after culture period six months separate floating-net cages. The were specifically cut into loins several parameters observed, including proximate, color changes, total collagen, drip loss, muscle histology, gene expression (qRT-PCR). results color-change analysis showed that discoloration red feed group occurred faster than silkrose-BM group, indicating an antioxidant property silkrose-BM. Dietary also significantly reduced loss increased collagen content meat. Furthermore, qRT-PCR genes related lipid degradation downregulated muscles fed In contrast, proximate indicated no significant change nutritional composition between groups. Taken together, our suggest could improve minimizing denaturation inhibiting oxidation during storage.

Language: Английский

Citations

0

Yellow lupine extract modulates diabetes-induced extracellular matrix changes in ocular tissue DOI Creative Commons

Maha Sayari,

Kais Abderrahim,

Abdelmajid Khabir

et al.

DELETED, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Language: Английский

Citations

0

Ocular surface glycocalyx in health and disease DOI Creative Commons
Rafael Martínez-Carrasco, Ajay Sharma

Frontiers in Cell and Developmental Biology, Journal Year: 2025, Volume and Issue: 13

Published: March 27, 2025

The glycocalyx is a dynamic carbohydrate-enriched structure that forms dense coating on the surface of animal cells, including those at ocular surface. It plays critical role in maintaining cellular functions and it has significant influence disease processes. At surface, glycoproteins such as mucins are essential for hydration, lubrication, barrier protection. Proteoglycans glycolipids contribute to cell signaling, mediate interactions with pathogens. Alterations implicated spectrum conditions, dry eye disease, allergies, infections, systemic diseases Graft-versus-host (GVHD) diabetes mellitus. Research revealed alterations mucin expression aberrant glycosylation but many aspects how these processes remain poorly understood. Advancing our knowledge composition function offers valuable insights into pathophysiology presents opportunities novel glycocalyx-targeted therapeutic strategies mitigate progression enhance patient care. This review explores current glycocalyx, emphasizing its implications disease.

Language: Английский

Citations

0

Contribution of Proteoglycans to the Multiscale Structure and Function of Soft Tissues DOI
Bélâ Suki, Matthew A. Nugent

Published: Jan. 1, 2025

Language: Английский

Citations

0