“Here, we report a chronic wound healing model that can be used to decipher the paradoxical role of cellular senescence in acute versus chronic wound healing.”
Credit: 2023 Wyles et al.
“Here, we report a chronic wound healing model that can be used to decipher the paradoxical role of cellular senescence in acute versus chronic wound healing.”
BUFFALO, NY- May 1, 2023 – A new research paper was published on the cover of Aging (listed by MEDLINE/PubMed as “Aging (Albany NY)” and “Aging-US” by Web of Science) Volume 15, Issue 8, entitled, “A chronic wound model to investigate skin cellular senescence.”
Wound healing is an essential physiological process for restoring normal skin structure and function post-injury. The role of cellular senescence, an essentially irreversible cell cycle state in response to damaging stimuli, has emerged as a critical mechanism in wound remodeling. Transiently-induced senescence during tissue remodeling has been shown to be beneficial in the acute wound healing phase. In contrast, persistent senescence, as observed in chronic wounds, contributes to delayed closure.
In this new study, researchers Saranya P. Wyles, Parisa Dashti, Tamar Pirtskhalava, Burak Tekin, Christina Inman, Lilian Sales Gomez, Anthony B. Lagnado, Larissa Prata, Diana Jurk, João F. Passos, Tamar Tchkonia, and James L. Kirkland from Mayo Clinic in Rochester, Minnesota, describe a chronic wound murine model and its cellular senescence profile, including the senescence-associated secretory phenotype.
“Herein we hypothesize that persistent senescent cell accumulation contributes to delayed healing in chronic wounds.”
This study presents a novel oxidative stress-induced chronic murine wound mouse model in which there is capacity to target aberrant senescent cell expression. Pharmacological manipulation of oxidative stress can influence wound healing and result in delayed wound closure, which offers the opportunity to characterize cellular senescence in late stages of wound healing. The molecular and histological profiles of senescent cells in the epidermis and dermis demonstrate the adverse influence of SASP factors in the chronic wound bed, a new avenue for root-cause, targeted therapeutic interventions.
“To our knowledge, this study is the first chronic wound murine model to profile the effects of the chronic cellular senescence that is linked to delayed wound healing. This may have implications for developing interventions that target cellular senescence for chronic or stalled wounds as a root cause-driven therapeutic strategy.”
Read the full study: DOI: https://doi.org/10.18632/aging.204667
Corresponding Authors: James L. Kirkland, Tamar Tchkonia – [email protected], [email protected]
Keywords: wound healing, cellular senescence, chronic wound re-epithelization, skin
Sign up for free Altmetric alerts about this article: https://aging.altmetric.com/details/email_updates?id=10.18632%2Faging.204667
About Aging-US:
Launched in 2009, Aging (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 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.
Please visit our website at www.Aging-US.com and connect with us:
- SoundCloud
- YouTube
- LabTube
Click here to subscribe to Aging publication updates.
For media inquiries, please contact [email protected].
Aging (Aging-US) Journal Office
6666 E. Quaker Str., Suite 1B
Orchard Park, NY 14127
Phone: 1-800-922-0957, option 1
###
Journal
Aging-US
DOI
10.18632/aging.204667
Method of Research
Experimental study
Subject of Research
Animals
Article Title
A chronic wound model to investigate skin cellular senescence
Article Publication Date
21-Apr-2023
