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Adly E, Shehata MG, El-Demerdash E, Alfarraj S, Ali Alharbi S, Soliman DE. Impact of anti-sandfly saliva antibodies on biological aspects of Phlebotomus papatasi (Diptera: Psychodidae), vector of cutaneous leishmaniasis. Saudi J Biol Sci 2021; 28:2695-2700. [PMID: 34025155 PMCID: PMC8117046 DOI: 10.1016/j.sjbs.2021.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 10/26/2022] Open
Abstract
Sandflies are the main vectors of Leishmania parasites in tropical and subtropical areas. The immunization of vertebrate hosts with vector components through repeated bites may offer an alternative method for sandfly control. Aliquots of female Phlebotomus papatasi (Scopoli) (Diptera: Psychodidae) were weekly blood fed on 12 individual hamsters throughout 18 successive weeks. Significant biological and biochemical changes resulting from antibodies developed by immunized host sera against repeated biting were observed in sandfly females. Blood feeding and fertility rates of females significantly gradually declined to the end of the study period. No appreciable difference was observed in mortality rates among flies repeatedly fed on individual hamsters throughout weeks 9 and 18, compared to flies fed on naïve hamsters. Total salivary gland proteins of female sandflies were compared to proteins in sera of sensitized hamsters. SDS-page revealed bands common to both flies and hosts, indicating the development of anti-saliva antibodies in hamster sera. The importance of anti-sandfly saliva antibodies as a potential tool for vector control leading to the interruption of leishmaniasis is discussed.
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Affiliation(s)
- Eslam Adly
- Department of Entomology, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Magdi G Shehata
- Department of Entomology, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Ebtehal El-Demerdash
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Ain Shams University, Abbassia 11566, Cairo, Egypt
| | - Saleh Alfarraj
- Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany & Microbiology, College of Science, King Saud University, P.O Box 2455, Riyadh 11451, Saudi Arabia
| | - Doaa E Soliman
- Department of Entomology, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
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Pushpanjali, Ahmed G, Thakur AK, Snehil, Jamal F, Singh MK, Kumar A, Singh SK, Bimal S, Das P, Narayan S. Exploring new immunological insight on SP15 (∼14 kDa) family protein in saliva of Indian sand-fly (Phlebotomus argentipes) in experimental visceral leishmaniasis. Cell Immunol 2018; 332:51-57. [PMID: 30049412 DOI: 10.1016/j.cellimm.2018.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/18/2018] [Accepted: 07/17/2018] [Indexed: 11/26/2022]
Abstract
Visceral leishmaniasis (VL) is a disease caused by protozoan species of the genus Leishmania and is transmitted through bites from the Phlebotomus sand fly; it is associated with considerable morbidity and mortality in many parts of world, including India. Reports on the protective role played by saliva proteins of Lutozomyia longipalpis, Phlebotomus papatasi and Phlebotomus duboscqi. are available. However, no studies have explored the salivary proteins of P. argentipes, which is the known proven vector for the transmission of VL in the Indian sub-continent. Herein we revealed the presence of two proteins of 14.2 and one protein of 13.6 kDa in Indian strain P. argentipes which is absolute identical to previously reported protein of SP15 family (PagSP01, PagSP02 and PagSP07) of P. argentipes of NIH colony, USA. In an experimental study on P. argentipes from Bihar, India, we demonstrated that a strong humoral and cellular immune response was triggered to reduce the concomitant Leishmania load in groups of immunized mice. The immunized group produced a considerable amount of IgG antibodies, and their splenocytes generated TH1 cytokines (IL-12, IFN-γ) with the support of delayed-type hypersensitivity (DTH) reactivity in such mice at the challenged site. We summarize from our data that some identical proteins to previous from SP15 family protein of 14.2 and 13.6 kDa molecular size, derived from Indian P. argentipes and reported its first time, can also be significant in resolution of VL infection after modulation of host protective T cell response in VL.
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Affiliation(s)
- Pushpanjali
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Ghufran Ahmed
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Ajit K Thakur
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Snehil
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Fauzia Jamal
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Manish K Singh
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Ajay Kumar
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Subhankar K Singh
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Sanjiva Bimal
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Pradeep Das
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India
| | - Shyam Narayan
- Rajendra Memorial Research Institute of Medical Sciences, (Indian Council of Medical Research) Agam Kuan, Patna, 800 007, India.
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