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For: Wanji S, Chunda VC, Fombad FF, Jélil Njouendou A, Gandjui NVT, Ritter M, Enyong PA, Mackenzie C, Taylor MJ, Hoerauf A, Turner JD. Advances in preclinical platforms of Loa loa for filarial neglected tropical disease drug and diagnostics research. Front Trop Dis 2021;2:778724. [PMID: 38654889 PMCID: PMC7615857 DOI: 10.3389/fitd.2021.778724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open

For:	Wanji S, Chunda VC, Fombad FF, Jélil Njouendou A, Gandjui NVT, Ritter M, Enyong PA, Mackenzie C, Taylor MJ, Hoerauf A, Turner JD. Advances in preclinical platforms of Loa loa for filarial neglected tropical disease drug and diagnostics research. Front Trop Dis 2021;2:778724. [PMID: 38654889 PMCID: PMC7615857 DOI: 10.3389/fitd.2021.778724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open

Number

Cited by Other Article(s)

Chunda VC, Fombad FF, Kien CA, Ebai R, Esofi F, Ntuh AN, Ouam E, Gandjui NVT, Ekanya R, Nietcho F, Nchang LC, Magha C, Njouendou AJ, Enyong P, Hoerauf A, Wanji S, Ritter M. Comparative development of human filariae Loa loa, Onchocerca volvulus and Mansonella perstans in immunocompromised mouse strains. FRONTIERS IN TROPICAL DISEASES 2024;5:1293632. [PMID: 38655273 PMCID: PMC7615855 DOI: 10.3389/fitd.2024.1293632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open

Abstract

Introduction

Mouse models of human filarial infections are not only urgently needed to investigate the biology of the nematodes and their modulation of the host's immunity, but will also provide a platform to screen and test novel anti-filarial drugs. Recently, murine Loa loa infection models have been stablished using immunocompromised mouse strains, whereas murine Mansonella perstans infections have not been implemented until now.

Methods

Therefore, we aim to establish experimental M. perstans infections using the immunocompromised mouse strains RAG2IL-2Rγ-/- (lack B, T and natural killer cells), IL-4Rα/IL-5-/- (impaired IL-4/5 signalling and eosinophil activation) and NOD.Cg-PrkdcscidIl2rgtm1Wj l/SzJ (NOD scid gamma, NSG) BALB/c mice (lack mature lymphocytes) through subcutaneous (s.c.) or intraperitoneal (i.p.) inoculation of infective stage 3 larvae (L3) isolated from engorged vectors.

Results

In total, 145 immunocompromised mice have been inoculated with 3,250 M. perstans, 3,337 O. volvulus, and 2,720 Loa loa L3 to comparatively analyse which immunocompromised mouse strain is susceptible to human filarial infections. Whereas, no M. perstans and O. volvulus L3 could be recovered upon 2-63 days post-inoculation, a 62-66% Loa loa L3 recovery rate could be achieved in the different mouse strains. Gender of mice, type of inoculation (s.c. or i.p.) or time point of analysis (2-63 days post inoculation) did not interfere with the success of L3 recovery. In addition, administration of the immune suppressants hydrocortisone, prednisolone and cyclophosphamide did not restore M. perstans L3 recovery rates.

Discussion

These findings show that RAG2IL-2Rg-/-BALB/c and C57BL/6, IL-4Rα/IL-5-/- BALB/c and NSG mice were not susceptible to M. perstans and O. volvulus L3 inoculation using the applied methods, whereas Loa loa infection could be maintained. Further studies should investigate if humanized immunocompromised mice might be susceptible to M. perstans. and O. volvulus.

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Affiliation(s)

Valerine C. Chunda Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Fanny Fri Fombad Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Chi Anizette Kien Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Rene Ebai Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Frederick Esofi Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Anna Ning Ntuh Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Emmanuel Ouam Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Narcisse Victor Tchamatchoua Gandjui Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Relindis Ekanya Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Franck Nietcho Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Lucy Cho Nchang Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Chefor Magha Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Abdel Jelil Njouendou Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Peter Enyong Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Achim Hoerauf Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn (UKB), Bonn, Germany German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany German-West African Centre for Global Health and Pandemic Prevention (G-WAC), Partner Site Bonn, Bonn, Germany
Samuel Wanji Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon Research Foundation for Tropical Diseases and the Environment (REFOTDE), Buea, Cameroon
Manuel Ritter Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn (UKB), Bonn, Germany

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Gunderson EL, Bryant C, Bulman CA, Fischer C, Luo M, Vogel I, Lim KC, Jawahar S, Tricoche N, Voronin D, Corbo C, Ayiseh RB, Manfo FPT, Mbah GE, Cho-Ngwa F, Beerntsen B, Renslo AR, Lustigman S, Sakanari JA. Pyrvinium Pamoate and Structural Analogs Are Early Macrofilaricide Leads. Pharmaceuticals (Basel) 2022;15:189. [PMID: 35215301 PMCID: PMC8880385 DOI: 10.3390/ph15020189] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 12/05/2022] Open

Affiliation(s)

Emma L. Gunderson Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; (E.L.G.); (C.B.); (C.A.B.); (C.F.); (M.L.); (I.V.); (K.-C.L.); (A.R.R.)
Clifford Bryant Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; (E.L.G.); (C.B.); (C.A.B.); (C.F.); (M.L.); (I.V.); (K.-C.L.); (A.R.R.)
Christina A. Bulman Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; (E.L.G.); (C.B.); (C.A.B.); (C.F.); (M.L.); (I.V.); (K.-C.L.); (A.R.R.)
Chelsea Fischer Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; (E.L.G.); (C.B.); (C.A.B.); (C.F.); (M.L.); (I.V.); (K.-C.L.); (A.R.R.)
Mona Luo Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; (E.L.G.); (C.B.); (C.A.B.); (C.F.); (M.L.); (I.V.); (K.-C.L.); (A.R.R.)
Ian Vogel Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; (E.L.G.); (C.B.); (C.A.B.); (C.F.); (M.L.); (I.V.); (K.-C.L.); (A.R.R.)
Kee-Chong Lim Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; (E.L.G.); (C.B.); (C.A.B.); (C.F.); (M.L.); (I.V.); (K.-C.L.); (A.R.R.)
Shabnam Jawahar Molecular Parasitology, New York Blood Center, Lindsley F. Kimball Research Institute, New York, NY 10065, USA; (S.J.); (N.T.); (D.V.)
Nancy Tricoche Molecular Parasitology, New York Blood Center, Lindsley F. Kimball Research Institute, New York, NY 10065, USA; (S.J.); (N.T.); (D.V.)
Denis Voronin Molecular Parasitology, New York Blood Center, Lindsley F. Kimball Research Institute, New York, NY 10065, USA; (S.J.); (N.T.); (D.V.)
Christopher Corbo Department of Biological Sciences, Wagner College, Staten Island, NY 10301, USA;
Rene B. Ayiseh ANDI Centre of Excellence for Onchocerciasis Drug Research, Biotechnology Unit, Faculty of Science, University of Buea, Buea P.O. Box 63, Cameroon; (R.B.A.); (F.P.T.M.); (G.E.M.); (F.C.-N.)
Faustin P. T. Manfo ANDI Centre of Excellence for Onchocerciasis Drug Research, Biotechnology Unit, Faculty of Science, University of Buea, Buea P.O. Box 63, Cameroon; (R.B.A.); (F.P.T.M.); (G.E.M.); (F.C.-N.)
Glory E. Mbah ANDI Centre of Excellence for Onchocerciasis Drug Research, Biotechnology Unit, Faculty of Science, University of Buea, Buea P.O. Box 63, Cameroon; (R.B.A.); (F.P.T.M.); (G.E.M.); (F.C.-N.) Higher Teacher Training College (HTTC), The University of Bamenda, Bamenda P.O. Box 39, Cameroon
Fidelis Cho-Ngwa ANDI Centre of Excellence for Onchocerciasis Drug Research, Biotechnology Unit, Faculty of Science, University of Buea, Buea P.O. Box 63, Cameroon; (R.B.A.); (F.P.T.M.); (G.E.M.); (F.C.-N.)
Brenda Beerntsen Department of Veterinary Pathobiology, University of Missouri-Columbia, Columbia, MO 65211, USA;
Adam R. Renslo Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; (E.L.G.); (C.B.); (C.A.B.); (C.F.); (M.L.); (I.V.); (K.-C.L.); (A.R.R.)
Sara Lustigman Molecular Parasitology, New York Blood Center, Lindsley F. Kimball Research Institute, New York, NY 10065, USA; (S.J.); (N.T.); (D.V.)
Judy A. Sakanari Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; (E.L.G.); (C.B.); (C.A.B.); (C.F.); (M.L.); (I.V.); (K.-C.L.); (A.R.R.)

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