title: Regulation of the extracellular matrix remodeling by lutein in dermal fibroblasts, melanoma cells, and ultraviolet radiation exposed fibroblasts.
abstract: With aging and cancer there is increased expression or activity of matrix metalloproteinases (MMPs) that degrade and remodel the structural extracellular matrix (ECM). In addition, exposure of skin to ultraviolet (UV) radiation (photoaging) leads to loss of cell viability, membrane damage, and deposition of excessive elastotic material. Lutein has antioxidant, anti-inflammatory, photoprotective, and anti-carcinogenic properties. The goal of this research was to investigate lutein's anti-aging and anti-carcinogenic effects via the regulation of the extracellular matrix remodeling. To this purpose, the effects of lutein on the expression of MMPs and their inhibitors (TIMPs, tissue inhibitors of metalloproteinases) in dermal fibroblasts (intrinsic aging) and melanoma cells were examined. Further, for lutein's photoprotective effects, the regulation of cell viability, membrane integrity, and elastin expression in the non-irradiated, and UVA or UVB radiation exposed fibroblasts were analyzed. Lutein significantly inhibited MMP-1 expression, transcriptionally, and MMP-2 protein levels in dermal fibroblasts, without altering TIMPs expression. It significantly inhibited MMP-1 expression in melanoma cells while stimulating TIMP-2. Lutein did not alter fibroblast or melanoma cell viability or membrane integrity. In ultraviolet radiation exposed fibroblasts, lutein improved cell viability, membrane integrity and inhibited elastin expression, though more significantly in the UVB exposed fibroblasts. In summary, the mechanism to lutein's anti-aging and anti-carcinogenic effects include the inhibition of MMP to TIMP ratio in dermal fibroblasts and melanoma cells, and the inhibition of cell loss, membrane damage and elastin expression in ultraviolet radiation exposed fibroblasts.
authors: School of Science and Mathematics, Georgian Court University, Lakewood, NJ, USA. nphilips@fdu.edu
authors: Neena
authors: N
authors: Philips
authors: Thomas
authors: T
authors: Keller
authors: Cynthia
authors: C
authors: Hendrix
authors: Shannon
authors: S
authors: Hamilton
authors: Rosemarie
authors: R
authors: Arena
authors: Marvin
authors: M
authors: Tuason
authors: Salvador
authors: S
authors: Gonzalez
mesh_terms: D002462:Cell Membrane / Q000187:drug effects / Q000528:radiation effects; D002470:Cell Survival / Q000187:drug effects / Q000528:radiation effects; D020405:Dermis / Q000166:cytology / Q000187:drug effects / Q000528:radiation effects; D004549:Elastin / Q000378:metabolism; D005109:Extracellular Matrix / Q000187:drug effects / Q000378:metabolism / Q000528:radiation effects; D005347:Fibroblasts / Q000166:cytology / Q000187:drug effects / Q000528:radiation effects; D006801:Humans; D066298:In Vitro Techniques; D014975:Lutein / Q000494:pharmacology*; D020781:Matrix Metalloproteinase 1 / Q000235:genetics / Q000378:metabolism; D020778:Matrix Metalloproteinase 2 / Q000378:metabolism; D008545:Melanoma / Q000473:pathology*; D011401:Promoter Regions, Genetic / Q000502:physiology; D015595:Skin Aging / Q000187:drug effects* / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology*; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000378:metabolism; D019716:Tissue Inhibitor of Metalloproteinase-2 / Q000378:metabolism; D014407:Tumor Cells, Cultured; D014466:Ultraviolet Rays / Q000009:adverse effects*
chemical_list: D019715:Tissue Inhibitor of Metalloproteinase-1; D019716:Tissue Inhibitor of Metalloproteinase-2; D004549:Elastin; D020778:Matrix Metalloproteinase 2; D020781:Matrix Metalloproteinase 1; D014975:Lutein