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Soares RN, Ximenes ECPDA, Araújo SB, Silva RLD, Souza VMOD, Coelho LCBB, Neto JLDF, Neto PJR, Araújo HDAD, Aires ADL, Albuquerque MCPDA. Evaluation of β-lapachone-methyl-β-cyclodextrin inclusion complex prepared by spray drying and its application against different developmental stages of Schistosoma mansoni in murine model. Chem Biol Interact 2023; 373:110374. [PMID: 36736872 DOI: 10.1016/j.cbi.2023.110374] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023]
Abstract
BACKGROUND β-lapachone (β-lap) is a naphthoquinone widely found in species of vegetables. However, its poor aqueous solubility limits its systemic administration and clinical applications in vivo. To overcome this limitation, several studies have been carried out in order to investigate techniques that can enhance the solubility and dissolution rate of β-lap, such as the use of inclusion complexes with cyclodextrin. PURPOSE To evaluate the in vivo effect of β-lap complexed in methyl-β-cyclodextrin (MβCD) on the evolutionary stages of Schistosoma mansoni in a murine model. METHODS The development and characterization of the physicochemical properties of the inclusion complex of β-lap in β-lap:MβCD was prepared by solubility and dissolution tests, FTIR, DSC, X-RD and SEM. The mice were infected and subsequently treated with β-lap:MβCD orally with 50 mg/kg/day and 100 mg/kg/day for 5 consecutive days, starting therapy on the 1st (skin schistosomula), 14th (pulmonary schistosomula), 28th (young worms) and 45th (adult worms) days after infection. Control groups were also formed; one infected untreated, treated with MβCD, and the other treated with PZQ. RESULTS The loss of the crystalline form of β-lap in the β-lap:MβCD complex obtained by spray drying was proven through physical-chemical characterization analyses. β-lap:MβCD caused reduction in the number of worms of the 33.56%, 35.7%, 35.45% and 36.45%, when the dose was at 50 mg/kg, and 65.00%, 60.34%, 52.72% and 65.01%, in the dose 100 mg/kg; when treatment was started in the 1st, 14th, 28th and 45th days after infection, respectively. It was also possible to observe a significant reduction in the number of immature eggs and an increase in the number of ripe and dead eggs and, consequently, a reduction in the damage caused by the egg antigens to the host tissue, where we attributed the reduction in the average diameter of the granulomas to the β-lap. CONCLUSION The dissolved content of β-lap:MβCD by spray drying reached almost 100%, serving for future formulations and delineation of the mechanisms of action of β-lap against S. mansoni.
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Affiliation(s)
- Risoleta Nogueira Soares
- Health Sciences Center, Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil; Keizo Asami Institute (iLIKA), Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | | | | | - Valdênia Maria Oliveira de Souza
- Health Sciences Center, Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil; Keizo Asami Institute (iLIKA), Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | - José Lourenço de Freitas Neto
- Health Sciences Center, Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Pedro José Rolim Neto
- Health Sciences Center, Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Hallysson Douglas Andrade de Araújo
- Keizo Asami Institute (iLIKA), Federal University of Pernambuco, Recife, Pernambuco, Brazil; Biosciences Center, Department of Biochemistry, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - André de Lima Aires
- Keizo Asami Institute (iLIKA), Federal University of Pernambuco, Recife, Pernambuco, Brazil; Center for Medical Sciences, Academic Area of Tropical Medicine, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Mônica Camelo Pessoa de Azevedo Albuquerque
- Health Sciences Center, Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil; Keizo Asami Institute (iLIKA), Federal University of Pernambuco, Recife, Pernambuco, Brazil; Center for Medical Sciences, Academic Area of Tropical Medicine, Federal University of Pernambuco, Recife, Pernambuco, Brazil.
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Therapeutic efficacy of a newly synthesized benzimidazole compound BTP-OH against murine schistosomiasis mansoni. J Helminthol 2020; 94:e172. [PMID: 32665046 DOI: 10.1017/s0022149x20000541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Because of the increasingly emerging praziquantel resistance, there is a crucial need to develop new anti-schistosomal agents. This work was conducted to assess the therapeutic efficacy of a new benzimidazole compound (BTP-OH) in mice experimentally infected with Schistosoma mansoni. A total of 40 Swiss albino female mice were divided into an infected untreated group and three infected treated groups (using praziquantel and BTP-OH). The compound activity was evaluated through parasitological, histopathological and scanning electron microscopy studies. Praziquantel and BTP-OH at both doses significantly reduced male (75%, 42.67% and 61.08%, respectively), female (71.45%, 48.94% and 68.13%, respectively) and total worm burden (75.21%, 42.42% and 62.28%, respectively), as well as tissue egg load in the liver (71.22%, 42.12% and 66.04%, respectively). In oogram, praziquantel significantly increased the percentage of dead eggs (65.89%), while BTP-OH significantly reduced the percentage of immature eggs (30.43% and 19.64%). BTP-OH significantly diminished granuloma count (33.87% and 44.77%) and diameter (39.23% and 49.40%), and caused ultrastructural changes in the tegument of adult schistosomes. This study provides evidence for the schistosomicidal efficacy of BTP-OH. However, future studies are needed to elucidate the full mechanisms of action and effects of BTP-OH on other human schistosomes.
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Silva JCS, Bernardes MVADS, Melo FL, Sá MPBO, Carvalho BM. Praziquantel versus praziquantel associated with immunomodulators in mice infected with schistosoma mansoni: A systematic review and meta-analysis. Acta Trop 2020; 204:105359. [PMID: 31987779 DOI: 10.1016/j.actatropica.2020.105359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 01/16/2020] [Accepted: 01/23/2020] [Indexed: 01/21/2023]
Affiliation(s)
- Juliana Carla Serafim Silva
- Faculty of Medical Sciences - University of Pernambuco (FCM/UPE), Rua Arnóbio Marques, 310, Santo Amaro, Recife, Pernambuco, Brazil, CEP: 50.100-130
| | | | - Fábio Lopes Melo
- Aggeu Magalhães Institute (IAM), Campus da UFPE - Av. Prof. Moraes Rego, s/n - Cidade Universitária, Recife, Pernambuco, Brazil, CEP 50.670-420
| | - Michel Pompeu Barros Oliveira Sá
- Faculty of Medical Sciences - University of Pernambuco (FCM/UPE), Rua Arnóbio Marques, 310, Santo Amaro, Recife, Pernambuco, Brazil, CEP: 50.100-130
| | - Bruno Melo Carvalho
- Faculty of Medical Sciences - University of Pernambuco (FCM/UPE), Rua Arnóbio Marques, 310, Santo Amaro, Recife, Pernambuco, Brazil, CEP: 50.100-130; Institute of Biological Sciences - University of Pernambuco (ICB/UPE), Rua Arnóbio Marques, 310, Santo Amaro, Recife, Pernambuco, Brazil. CEP: 50.100-130.
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Alhusseiny SM, El-Beshbishi SN, Abu Hashim MM, El-nemr HEDE, Handoussa AE. Effectiveness of vinpocetine and isosorbide-5-mononitrate on experimental schistosomiasis mansoni: Biochemical and immunohistochemical study. Acta Trop 2018; 186:16-23. [PMID: 29963994 DOI: 10.1016/j.actatropica.2018.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 06/08/2018] [Accepted: 06/11/2018] [Indexed: 02/06/2023]
Abstract
Schistosomiasis is one of the most important tropical and subtropical devastating diseases, where praziquantel is the sole drug of choice. Praziquantel effectively kills the adult worms, however, drug resistance has been repeatedly reported. Moreover, there is currently no efficient anti-fibrotic therapy available for chronic schistosomiasis. So, novel drugs which exert anti-fibrotic efficacy are urgently needed. This research is complementary to our previous work that evaluated the anti-schistosomal effects of the anti-inflammatory vinpocetine, as well as the vasodilator and the anti-oxidant isosorbide-5-mononitrate. In the present study, we assessed the therapeutic efficacies of drugs in Swiss albino female mice experimentally infected with an Egyptian strain of Schistosoma mansoni, using some biochemical and immunohistochemical parameters. Our results revealed that both vinpocetine and isosorbide-5-mononitrate monotherapy significantly decreased hepatic nuclear factor-kappaB, 10 weeks post infection. The best effects were seen in mice administered praziquantel combined with isosorbide-5-mononitrate, as detected by reduction in hydroxyproline and collagen contents of the liver, and significant increase in the hepatic nitric oxide content. The data provides insight into the potential effects of the assessed drugs with isosorbide-5-mononitrate being more superior to vinpocetine, hence it can be used as novel adjuvant to praziquantel to alleviate schistosomal hepatic fibrosis. However, molecular mechanism/s and clinical trials are worthy to be scrutinized.
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