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NRS grants target rosacea’s underlying mechanisms


 

Two new studies being funded by 2022 National Rosacea Society grants will examine the role of cellular-level signaling and the postlaser skin microbiome in the pathophysiology of rosacea, according to an announcement by the NRS.

Persistent erythema in a woman with rosacea. National Rosacea Society

Persistent erythema in a woman with rosacea.

As part of the NRS research grants program, the organization recently awarded $10,000 to Emanual Maverakis, MD, professor of dermatology, University of California, Davis, and research fellow Samantha Herbert, MSPH. Their project will characterize rosacea pathophysiology using single-cell RNA sequencing. This novel analytical technique provides specific information on the signals expressed by different cell types and will help researchers better understand the role each subtype may play in rosacea, along with how these cells interact with each other, according to the NRS press release. New knowledge in the foregoing areas may fuel development of better therapies, the release added.

The NRS awarded its second new-research grant to Arisa Ortiz, MD, director of laser and cosmetic dermatology and associate professor of dermatology, University of California, San Diego. She was awarded $5,000 to examine whether laser therapy affects the skin microbiome, the complex ecosystem of bacteria and other microorganisms that reside on the skin. Studies have detected significant differences – such as higher levels of Demodex folliculorum and Staphylococcus epidermidis and lower levels of Cutibacterium acnes – in the microbiome of skin with rosacea compared with healthy skin. Dr. Ortiz’s research also will probe how blood vessels, which laser therapy often target, contribute to the rosacea disease process.

An individual with ocular rosacea. National Rosacea Society

An individual with ocular rosacea.

The NRS also renewed its support of an ongoing study led by Sezen Karakus, MD, assistant professor of ophthalmology at the Johns Hopkins Wilmer Eye Institute, Baltimore. She is studying the role of the ocular-surface microbiome in rosacea pathogenesis. Because ocular rosacea can lead to vision-threatening corneal complications, Dr. Karakus said in the press release, identifying microorganisms present on the ocular surface may spur development of targeted treatment strategies.

A second ongoing study for which the NRS renewed funding is investigating whether certain intracellular signals recently found to be elevated in rosacea lesions may drive skin inflammation, which may be a root cause of rosacea. Emmanuel Contassot, PhD, project leader in the dermatology department at the University Hospital of Basel, Switzerland, is leading the study.

To date, the NRS research grants program has awarded more than $1.6 million to research designed to further elucidate potential causes and other key aspects of rosacea with the goal of advancing treatment, prevention, or potential cure of rosacea.

For interested researchers, the deadline to submit proposals for next year’s grants is June 16, 2023. Forms and instructions are available through the research grants section of the NRS website or by contacting the NRS at 4619 N. Ravenswood Ave., Suite 103, Chicago, IL 60640; 888-662-5874; or info@rosacea.org.

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