The lacrimal gland, found in the upper outer part of the eye’s hollow area, is an important gland that makes tears to protect the eye from infections. It’s split into two parts: one near the inside of the eyelid that can be seen when the eyelid is flipped, and another part with ducts lower in the eye that connects to its counterpart. In their fully functioning status, these ducts release fluid onto the surface of the eye. As humans age (especially women), the lacrimal gland gradually becomes infiltrated by aberrant immune cells and can ultimately lead to an uncomfortable condition known as dry eye disease.

“Burning and redness in the eyes, grittiness and blurry vision make life miserable and currently, eye drops with a variety of lubricant components and in the most severe cases, immunosuppressors, are the only therapies approved for this disease.”

In a well-written new editorial paper, researchers Claudia M. Trujillo-Vargas and Cintia S. de Paiva from the Department of Ophthalmology at Baylor College of Medicine artfully discuss their recent studies which shed light on the immune system’s role in dry eye disease. On August 11, 2023, their editorial was published in Aging’s Volume 15, Issue 15, entitled, “Our search of immune invaders in the aged lacrimal gland.”

Full blog - https://aging-us.org/2023/08/dry-eyes-it-may-be-immune-infiltration-in-aging-lacrimal-glands/

Paper DOI - https://doi.org/10.18632/aging.204651

Corresponding author - Cintia S. de Paiva - [email protected]

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Keywords - aging, lacrimal gland, ectopic lymphoid structures, immune invasion

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Launched in 2009, Aging-US publishes papers of general interest and biological significance in all fields of aging research and age-related diseases, including cancer—and now, with a special focus on COVID-19 vulnerability as an age-dependent syndrome. Topics in Aging-US go beyond traditional gerontology, including, but not limited to, cellular and molecular biology, human age-related diseases, pathology in model organisms, signal transduction pathways (e.g., p53, sirtuins, and PI-3K/AKT/mTOR, among others), and approaches to modulating these signaling pathways.

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