Abstract

Malaria remained a leading cause of morbidity and mortality in tropical regions, with Anopheles mosquitoes serving 
as the primary vectors. Traditional vector control methods faced challenges including insecticide resistance and 
operational limitations. Gene drive technology represented a novel approach that harnesses molecular mechanisms 
to spread desired genetic modifications through mosquito populations at accelerated rates, offering potential 
paradigm shifts in vector control strategies. This review examined the molecular mechanisms underlying gene drive 
systems in Anopheles mosquitoes, evaluated their safety profiles and ecological implications, and explored the ethical 
dimensions surrounding their potential deployment for malaria control. A comprehensive literature search of peer
reviewed journals, regulatory documents, and expert consensus statements published between 2010 and 2025 was 
conducted, focusing on CRISPR-based gene drives, ecological modeling, biosafety assessments, and bioethics 
frameworks. CRISPR Cas9-mediated gene drives demonstrated high transmission rates through mosquito 
populations, with several designs, including population suppression and modification approaches, showing efficacy 
in laboratory settings. Molecular mechanisms involved targeted gene disruption or trait insertion with super
Mendelian inheritance patterns. Safety concerns encompassed unintended ecological effects, resistance evolution, 
and transboundary spread. Ethical considerations centered on informed consent, environmental justice, and 
governance frameworks for testing and deployment. Current evidence indicates substantial technical progress but 
reveals significant gaps in ecological risk assessment, long-term stability evaluation, and consensus on regulatory 
pathways. Gene drive technology demonstrated considerable promise for Anopheles control, yet successful 
implementation requires rigorous safety testing, robust governance structures, and meaningful community 
engagement before field deployment can be ethically justified.