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Updated: Dec 21, 2025

Author Spotlight: Development and Evaluation of a Compound Acne Rodent Model Using C. acnes and Oleic Acid
Published on: November 1, 2024
Acne treatments: future trajectories
1Department of Dermatology, A. Syggros Hospital, University of Athens, Athens, Greece.
Abstract:
Current acne treatments present several limitations, posing the need for new effective therapies for long-term administration for recalcitrant or relapsing acne. Key players in acne that may emerge as targets for future acne treatments include the cutaneous loss of diversity of Cutibacterium (formerly Propionibacterium) acnes phylotypes and the insulin-like growth factor-1 signalling pathway. New data about the loss of diversity of microbiota in acne provides the rationale for the potential use of oral or topical probiotics. Another therapeutic approach to modulate the microbiota could be topical formulation of C. acnes bacteriophages to target specifically the pathogenic 'acnegenic' C. acnes phylotypes. Insulin-sensitizing agents such as metformin, myo-inositol and d-chiro-inositol represent promising agents, but to date there have been only limited studies and much heterogeneity in the methods of assessing acne efficacy outcomes. Moving towards a holistic approach for patients with acne is the future, by taking into account both internal and external factors, such as pollution, stress, acne family history, age, smoking habits and diet, and addressing quality of life and the psychological impact of acne.
Insights
New acne therapies are needed for persistent cases. Future treatments may target skin microbiota diversity and insulin pathways, alongside holistic patient care addressing lifestyle and psychological factors.
Area of Science:
- Dermatology and Microbiology
- Endocrinology
Background:
- Current acne treatments have limitations for long-term management of recalcitrant or relapsing acne.
- Key factors in acne pathogenesis include alterations in Cutibacterium acnes phylotypes and the insulin-like growth factor-1 (IGF-1) signaling pathway.
Purpose of the Study:
- To explore novel therapeutic targets and approaches for acne treatment.
- To discuss the potential of modulating the skin microbiota and insulin signaling for acne management.
- To highlight the importance of a holistic approach considering internal and external factors affecting acne.
Main Methods:
- Review of current literature on acne pathogenesis and treatment limitations.
- Analysis of emerging therapeutic strategies targeting microbial diversity and metabolic pathways.
- Discussion of the role of lifestyle, environmental, and psychological factors in acne.
Main Results:
- Loss of skin microbiota diversity and dysregulation of the IGF-1 pathway are potential therapeutic targets.
- Oral or topical probiotics and bacteriophages targeting specific C. acnes phylotypes show promise.
- Insulin-sensitizing agents like metformin and inositols are potential treatments, though further research is needed.
- A holistic approach integrating internal and external factors is crucial for comprehensive acne management.
Conclusions:
- Novel therapeutic strategies for acne involve targeting microbial dysbiosis and metabolic pathways.
- Probiotics, bacteriophages, and insulin-sensitizing agents represent promising avenues for future acne treatments.
- A comprehensive, patient-centered approach addressing lifestyle and psychological well-being is essential for effective acne management.
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