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BRIEF RESEARCH REPORT article

Front. Immunol.

Sec. Vaccines and Molecular Therapeutics

This article is part of the Research TopicInnovative Immunological Strategies for Overcoming Antimicrobial Resistance and Enhancing Vaccine DevelopmentView all 11 articles

Plasmodium vivax infection-driven modulation of Sterol Carrier Protein reveals a metabolic link to reproductive physiology in Anopheles stephensi

Provisionally accepted
Pooja  YadavPooja YadavSeena  KumariSeena KumariNirmala  SankalaNirmala SankalaJYOTI  RANIJYOTI RANIGunjan  SharmaGunjan SharmaSanjay  TevatiyaSanjay TevatiyaRajnikant  DixitRajnikant Dixit*
  • ICMR - National Institute of Malaria Research, New Delhi, India

The final, formatted version of the article will be published soon.

Mosquitoes rely exclusively on blood-derived sterols, transported by Sterol Carrier Protein (SCP), for reproduction and metabolic regulation. SCP expression is strongly induced after blood feeding and dynamically modulated during Plasmodium vivax infection—upregulated in the midgut and salivary glands but suppressed in hemocytes— indicating that parasite infection modulate the host sterol transport and metabolism. RNAi-mediated knockdown of SCP significantly reduced mosquito fecundity, underscoring its vital role in reproductive physiology. These findings highlight SCP as a key metabolic regulator linking nutrient uptake to reproductive outcome while its plasmodium infection driven modulation may facilitate the parasite growth . While reproduction remains the primary physiological outcome, the metabolic modulation of SCP during infection also points to it as a possible transmission-blocking target in integrated malaria control strategies.

Keywords: mosquito, Sterol-carrier Protein, Nutritional physiology, Anti-PlasmodiumImmunity, Reproduction

Received: 11 Sep 2025; Accepted: 21 Nov 2025.

Copyright: © 2025 Yadav, Kumari, Sankala, RANI, Sharma, Tevatiya and Dixit. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Rajnikant Dixit, dixit2k@yahoo.com

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