Intralesional Immunotherapy for Warts Management
Summary
Intralesional immunotherapy has emerged as a targeted approach to wart treatment that harnesses the host’s own immune system to eradicate human papillomavirus–infected keratinocytes. By injecting antigenic or immunomodulatory agents directly into a lesion, this method aims to stimulate a local and systemic cellular immune response, promoting regression of both treated and distant warts. Unlike destructive modalities such as cryotherapy or ablative lasers, intralesional immunotherapy offers the potential for durable clearance with minimal scarring. A variety of agents—including microbial antigens, cytokine inducers and metal salts—have been explored, each exhibiting distinct efficacy and tolerability profiles. Clinical protocols vary in dosing, interval and number of sessions, reflecting ongoing efforts to optimise immunogenicity while minimising discomfort. Intralesional immunotherapy holds particular promise for recalcitrant warts and in immunocompromised populations, where standard therapies frequently fail. Nevertheless, standardisation of treatment schedules, a deeper understanding of underlying immunological mechanisms and rigorous comparative trials remain priorities for wider clinical adoption.
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Intralesional Immunotherapy for Warts Management publication trend
The graph below shows the total number of articles in intralesional immunotherapy for warts management across all publications each year (not limited to Nature Index journals).
Technical terms
Intralesional immunotherapy: Direct administration of immunogenic agents into a wart to provoke a local and systemic immune response against HPV.
Recalcitrant warts: Skin lesions that fail to respond to standard therapies or recur after apparent resolution.
Cytokines: Signalling proteins released by immune cells that orchestrate the cellular response to infection and inflammation.
References
- Advancements in Pharmacotherapy for Noncancerous Manifestations of HPV. Journal of Clinical Medicine (2015).
- The Clinical Effectiveness of Intralesional Injection of 2% Zinc Sulfate Solution in the Treatment of Common Warts. Scientifica (2016).
- Paediatric Cutaneous Warts and Verrucae: An Update. International Journal of Environmental Research and Public Health (2022).
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