دورية أكاديمية

Incomplete Plasmodium falciparum growth inhibition following piperaquine treatment translates into increased parasite viability in the in vitro parasite reduction ratio assay.

التفاصيل البيبلوغرافية
العنوان: Incomplete Plasmodium falciparum growth inhibition following piperaquine treatment translates into increased parasite viability in the in vitro parasite reduction ratio assay.
المؤلفون: Walz A; Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland.; University of Basel, Basel, Switzerland., Sax S; Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland.; University of Basel, Basel, Switzerland., Scheurer C; Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland.; University of Basel, Basel, Switzerland., Tamasi B; Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland.; University of Basel, Basel, Switzerland., Mäser P; Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland.; University of Basel, Basel, Switzerland., Wittlin S; Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland.; University of Basel, Basel, Switzerland.
المصدر: Frontiers in cellular and infection microbiology [Front Cell Infect Microbiol] 2024 Apr 30; Vol. 14, pp. 1396786. Date of Electronic Publication: 2024 Apr 30 (Print Publication: 2024).
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Frontiers Media SA Country of Publication: Switzerland NLM ID: 101585359 Publication Model: eCollection Cited Medium: Internet ISSN: 2235-2988 (Electronic) Linking ISSN: 22352988 NLM ISO Abbreviation: Front Cell Infect Microbiol Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Lausanne : Frontiers Media SA
مواضيع طبية MeSH: Plasmodium falciparum*/drug effects , Plasmodium falciparum*/growth & development , Quinolines*/pharmacology , Antimalarials*/pharmacology , Drug Resistance* , Inhibitory Concentration 50* , Malaria, Falciparum*/drug therapy , Malaria, Falciparum*/parasitology, Humans ; Parasitic Sensitivity Tests ; Pilot Projects ; Artemisinins/pharmacology
مستخلص: Antimalarial resistance to the first-line partner drug piperaquine (PPQ) threatens the effectiveness of artemisinin-based combination therapy. In vitro piperaquine resistance is characterized by incomplete growth inhibition, i.e. increased parasite growth at higher drug concentrations. However, the 50% inhibitory concentrations (IC 50 ) remain relatively stable across parasite lines. Measuring parasite viability of a drug-resistant Cambodian Plasmodium falciparum isolate in a parasite reduction ratio (PRR) assay helped to better understand the resistance phenotype towards PPQ. In this parasite isolate, incomplete growth inhibition translated to only a 2.5-fold increase in IC 50 but a dramatic decrease of parasite killing in the PRR assay. Hence, this pilot study reveals the potential of in vitro parasite viability assays as an important, additional tool when it comes to guiding decision-making in preclinical drug development and post approval. To the best of our knowledge, this is the first time that a compound was tested against a drug-resistant parasite in the in vitro PRR assay.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2024 Walz, Sax, Scheurer, Tamasi, Mäser and Wittlin.)
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فهرسة مساهمة: Keywords: 4-aminoquinoline; PRR assay; drug resistance; growth inhibition assay; parasite viability; piperaquine
تواريخ الأحداث: Date Created: 20240515 Date Completed: 20240515 Latest Revision: 20240516
رمز التحديث: 20240516
مُعرف محوري في PubMed: PMC11091375
DOI: 10.3389/fcimb.2024.1396786
PMID: 38746786
قاعدة البيانات: MEDLINE
الوصف
تدمد:2235-2988
DOI:10.3389/fcimb.2024.1396786