Gum Arabic Modulates Redox–Ionic Microenvironments via Rheology and Kinetics to Induce Selective Cytotoxicity in Colorectal Cancer Cells
Yazarlar (12)
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı GELS (Q1)
Dergi ISSN 2310-2861 Dergi Bilgileri (2026)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 02-2026
Kabul Tarihi Yayınlanma Tarihi 03-02-2026
Cilt / Sayı / Sayfa 12 / 2 / 1–18 DOI 10.3390/gels12020139
Makale Linki https://www.mdpi.com/2310-2861/12/2/139
UAK Araştırma Alanları
Biyoteknoloji
Özet
Background Gum Arabic (GA) is a natural polysaccharide widely recognized for its antioxidant and anti-inflammatory properties; however, its functional behavior as a biopolymeric gel and the mechanisms underlying its selective effects on cancer-related redox microenvironments remain insufficiently characterized. It is imperative to note that the interaction between its physicochemical properties and its biological activity in colorectal cancer remains to be fully clarified. Methods This study aimed to evaluate the antineoplastic potential of GA in human colorectal cancer (CRC) cell lines (HT-29 and HCT-116) compared to normal fibroblasts (MRC-5) using the MTS assay. Oxidative stress-related molecular responses were assessed by quantitative PCR analysis of GPX4, GSTA2, CAT, NFKB, and SOD1 expression. In parallel, extracellular concentrations of key metal ions (Fe2+, Zn2+, Mn2+, Mg2+, Cu2+, and Al3+) were quantified following GA exposure. To establish its functional gel characteristics, rheological measurements were performed to assess viscosity and shear-dependent behavior, and USP-compliant in vitro kinetic studies were conducted to evaluate time-dependent release properties. Results GA induced dose-dependent cytotoxicity in HT-29 and HCT-116 colorectal cancer cells, while MRC-5 fibroblasts exhibited comparatively higher viability across the tested concentration range, indicating reduced sensitivity in normal cells. Rheological analysis revealed concentration- and ion-dependent viscoelastic behavior, identifying a 10% (w/w) GA formulation as optimal due to its balanced low-shear viscosity and controlled shear-thinning …
Anahtar Kelimeler
Gum Arabic | functional gels | rheology | kinetic behavior | redox modulation | colorectal cancer
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 1
Google Scholar 2
Gum Arabic Modulates Redox–Ionic Microenvironments via Rheology and Kinetics to Induce Selective Cytotoxicity in Colorectal Cancer Cells

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