Klotho (Kl), a gene recognized for its anti-aging properties, has garnered significant attention in the field of medical research due to its diverse physiological roles and potential therapeutic applications. Initially identified as an essential regulator of lifespan in mice, Kl exists in both membrane-bound and soluble forms, influencing various cellular processes including oxidative stress response, inflammation, and metabolic regulation. Its involvement in these fundamental biological pathways makes Kl particularly relevant in the context of age-related diseases, including those affecting the eyes.
Eye diseases such as diabetic retinopathy (DR), glaucoma, and age-related macular degeneration (AMD) are major causes of vision impairment and blindness worldwide. These conditions often share common pathological features, such as increased oxidative stress, chronic inflammation, and cellular apoptosis, all of which are areas where Kl has demonstrated regulatory capabilities. Research has shown that Kl levels are significantly altered in patients with these diseases, suggesting a potential role for Kl in their pathogenesis and progression.
In diabetic retinopathy, for instance, decreased serum levels of Kl have been linked to diseases severity, with Kl demonstrating protective effects on retinal cells by mitigating oxidative stress and inhibiting inflammatory responses. Similarly, in glaucoma, Kl's antioxidant and neuroprotective properties help preserve retinal ganglion cells and prevent apoptosis, offering a promising avenue for therapeutic intervention.
The potential of Kl as a biomarker for early detection and as a therapeutic target for treatment is an exciting prospect in the management of eye diseases. This introduction delves into the multifaceted roles of Kl in eye health, highlighting its significance in the prevention and treatment of prevalent eye conditions and setting the stage for further exploration into its clinical applications.
The Age-Regulating Protein Klotho Is Vital to Sustain Retinal
https://iovs.arvojournals.org/article.aspx?articleid=2202958Klotho Regulates Retinal Pigment Epithelial Functions and Protects Against Oxidative Stress
https://www.jneurosci.org/content/33/41/16346.shortThe neuroprotective effect of latanoprost acts via klotho-mediated suppression of calpain activation after optic nerve transection
https://onlinelibrary.wiley.com/doi/full/10.1111/jnc.13902The Anti-Aging Hormone Klotho Promotes Retinal Pigment Epithelium Cell Viability and Metabolism by Activating the AMPK/PGC-1α Pathway
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9952846/Klotho Regulates Retinal Pigment Epithelial Functions and Protects Against Oxidative Stress
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3810551/Klotho prevents transforming growth factor-β2-induced senescent-like morphological changes in the retinal pigment epithelium
https://www.nature.com/articles/s41419-023-05851-8Recombinant human klotho protects against hydrogen peroxide-mediated injury in human retinal pigment epithelial cells via the PI3K/Akt-Nrf2/HO-1 signaling pathway
https://www.tandfonline.com/doi/full/10.1080/21655979.2022.2071023#abstractThe HIF-1α/p53/miRNA-34a/Klotho axis in retinal pigment epithelial cells promotes subretinal fibrosis and exacerbates choroidal neovascularization
https://onlinelibrary.wiley.com/doi/full/10.1111/jcmm.16272Klotho (Kl), known for its anti-aging properties, has shown potential in influencing the pathophysiology of glaucoma, a leading cause of irreversible blindness characterized by progressive optic neuropathy and elevated intraocular pressure (IOP).
1. Oxidative Stress Reduction
2. Anti-Inflammatory Effects
3. Neuroprotection
4. Fibrosis and Autophagy
Biomarker Potential
Lower levels of Kl have been correlated with various age-related diseases, including glaucoma. Monitoring Kl levels could serve as an early biomarker for the onset and progression of glaucoma.
Therapeutic Target
Enhancing Kl function or levels might offer a novel therapeutic approach to manage glaucoma by mitigating oxidative stress, reducing inflammation, and protecting retinal neurons.
-**Gene Therapy**:
Investigations are considering the potential of gene therapy to increase Klotho expression in ocular tissues to protect against glaucoma.
-**Protein Supplementation**:
Research may also look at the delivery of recombinant Klotho protein directly to the eye to reduce intraocular pressure and oxidative stress.
-**Combination Therapies**:
Combining Klotho with other antioxidants or neuroprotective agents to enhance its protective effects against glaucoma.
In conclusion, Klotho's multifaceted role in reducing oxidative stress, inflammation, and apoptosis, along with its neuroprotective properties, positions it as a promising biomarker and therapeutic target for glaucoma management. Further research is needed to fully understand and harness Kl's potential in clinical settings for glaucoma patients.
Evaluation of serum and aqueous humor klotho levels in pseudo exfoliation syndrome, pseudo exfoliation and primary open-angle glaucoma
https://link.springer.com/article/10.1007/s10792-021-01790-5Klotho and Endothelin-1 in Pseudoexfoliation Syndrome and Glaucoma
https://journals.lww.com/glaucomajournal/abstract/2016/12000/klotho_and_endothelin_1_in_pseudoexfoliation.1.aspxKlotho (Kl) is recognized as an anti-aging gene, primarily due to its inhibition of insulin-like growth factor-1 signalling. It exists in both full-length transmembrane and soluble forms (sKl). The soluble form, sKl, influences various organs and tissues by regulating pathways involved in diseases linked to oxidative and inflammatory states.
In diabetic patients, serum levels of Kl are significantly lower compared to healthy individuals and correlate with the duration of diabetes. Specifically, in diabetic retinopathy (DR), a common microvascular complication of type 2 diabetes, lower serum Kl levels are associated with diseases progression.
Kl plays a crucial role in maintaining homeostasis and functions of retinal cells through mechanisms such as phagocytosis, calcium signalling, secretion of vascular endothelial growth factor A (VEGF-A), redox status maintenance, and melanin biosynthesis. Experimental data show that Kl positively affects several mechanisms involved in the onset and progression of DR by:
Due to these effects, Kl has potential as a novel biomarker and therapeutic candidate for the treatment of diabetic retinopathy.
Klotho: A new therapeutic target in diabetic retinopathy?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10401458/α-Klotho Prevents Diabetic Retinopathy by Reversing the Senescence of Macrophages
https://www.researchsquare.com/article/rs-3715255/v1Serum α-Klotho and fibroblast growth factor 23 levels are not associated with non-proliferative diabetic retinopathy in type 1 diabetes mellitus
https://www.nature.com/articles/s41598-024-54788-1Klotho's impact on diabetic nephropathy and its emerging connection to diabetic retinopathy
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10151763/Low levels of circulating anti-ageing hormone Klotho predict the onset and progression of diabetic retinopathy
https://journals.sagepub.com/doi/full/10.1177/1479164120970901Protective potential of klotho protein on diabetic retinopathy: Evidence from clinical and in vitro studies
https://onlinelibrary.wiley.com/doi/pdf/10.1111/jdi.13100The KL-VS polymorphism of KLOTHO gene is protective against retinopathy incidence in patients with type 1 diabetes
https://www.sciencedirect.com/science/article/pii/S0925443917304647
Klotho Levels are Decreased and Associated with Enhanced Oxidative Stress and Inflammation in the Aqueous Humor in Patients with Exudative Age-related Macular Degeneration
https://pubmed.ncbi.nlm.nih.gov/33048602/Loss of anti-aging gene possible culprit in age-related macular degeneration
https://www.sciencedaily.com/releases/2013/10/131008182343.htmThe Expressions of Klotho Family Genes in Human Ocular Tissues and in Anterior Lens Capsules of Age-Related Cataract
https://www.tandfonline.com/doi/abs/10.1080/02713683.2016.1259421Klotho ameliorates the onset and progression of cataract via suppressing oxidative stress and inflammation in the lens in streptozotocin-induced diabetic rats
https://www.sciencedirect.com/science/article/abs/pii/S1567576919329522Absence of the Klotho Function Causes Cornea Degeneration with Specific Features Resembling Fuchs Endothelial Corneal Dystrophy and Bullous Keratopathy
https://www.mdpi.com/2079-7737/13/3/133The HIF-1α/p53/miRNA-34a/Klotho axis in retinal pigment epithelial cells promotes subretinal fibrosis and exacerbates choroidal neovascularization
https://onlinelibrary.wiley.com/doi/full/10.1111/jcmm.16272Retinitis Pigmentosa: over-expression of anti-ageing protein Klotho in degenerating photoreceptors
https://pubmed.ncbi.nlm.nih.gov/23796581/Klotho (Kl) plays a critical role in eye health, particularly in the context of age-related and diabetes-related eye diseases such as diabetic retinopathy (DR) and glaucoma. Its antioxidant, anti-inflammatory, and neuroprotective properties contribute significantly to mitigating oxidative stress, reducing inflammation, and preventing apoptosis in retinal cells. Lower levels of Kl have been associated with the progression of these diseases, indicating its potential as a biomarker for early detection and as a therapeutic target.
In DR, Kl helps maintain retinal cell homeostasis and function, thereby slowing diseases progression. In glaucoma, Kl's ability to protect retinal ganglion cells and reduce subretinal fibrosis highlights its therapeutic promise. Overall, the multifaceted actions of Kl underscore its importance in eye diseases management, presenting new avenues for both preventative and therapeutic strategies aimed at preserving vision and eye health. Further research is essential to fully harness Kl's potential in clinical applications for eye diseases.
KLOTHO: THE SECRET TO LONGEVITY, ANTI-AGING, AND TRANSFORMATIVE HEALTH.
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