1
|
Pivotto AP, de Souza Lima LB, Michelon A, Ferreira CZP, Gandra RF, Ayala TS, Menolli RA. Topical application of ozonated sunflower oil accelerates the healing of lesions of cutaneous leishmaniasis in mice under meglumine antimoniate treatment. Med Microbiol Immunol 2024; 213:4. [PMID: 38532203 DOI: 10.1007/s00430-024-00788-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 01/24/2024] [Indexed: 03/28/2024]
Abstract
Besides being scarce, the drugs available for treating cutaneous leishmaniasis have many adverse effects. Ozone is an option to enhance the standard treatment due to the wound-healing activity reported in the literature. In this study, we evaluated the efficiency of ozonated sunflower oil as an adjuvant in treating cutaneous lesions caused by Leishmania amazonensis. BALB/c mice were infected with L. amazonensis, and after the lesions appeared, they were treated in four different schedules using the drug treatment with meglumine antimoniate (Glucantime®), with or without ozonated oil. After thirty days of treatment, the lesions' thickness and their parasitic burden, blood leukocytes, production of NO and cytokines from peritoneal macrophages and lymph node cells were analyzed. The group treated with ozonated oil plus meglumine antimoniate showed the best performance, improving the lesion significantly. The parasitic burden showed that ozonated oil enhanced the leishmanicidal activity of the treatment, eliminating the parasites in the lesion. Besides, a decrease in the TNF levels from peritoneal macrophages and blood leukocytes demonstrated an immunomodulatory action of ozone in the ozonated oil-treated animals compared to the untreated group. Thus, ozonated sunflower oil therapy has been shown as an adjuvant in treating Leishmania lesions since this treatment enhanced the leishmanicidal and wound healing effects of meglumine antimoniate.
Collapse
Affiliation(s)
- Ana Paula Pivotto
- Laboratory of Applied Immunology, Center of Medical and Pharmaceutical Sciences, Western Parana State University, Cascavel, PR, Zip Code 85819-110, Brazil
| | - Lucas Bonatto de Souza Lima
- Laboratory of Applied Immunology, Center of Medical and Pharmaceutical Sciences, Western Parana State University, Cascavel, PR, Zip Code 85819-110, Brazil
| | - Alexandra Michelon
- Laboratory of Applied Immunology, Center of Medical and Pharmaceutical Sciences, Western Parana State University, Cascavel, PR, Zip Code 85819-110, Brazil
| | - Camilla Zottesso Pellon Ferreira
- Laboratory of Applied Immunology, Center of Medical and Pharmaceutical Sciences, Western Parana State University, Cascavel, PR, Zip Code 85819-110, Brazil
| | - Rinaldo Ferreira Gandra
- Laboratory of Microbiology, Western Parana University Hospital, Western Parana State University, Cascavel, PR, Brazil
| | - Thaís Soprani Ayala
- Laboratory of Applied Immunology, Center of Medical and Pharmaceutical Sciences, Western Parana State University, Cascavel, PR, Zip Code 85819-110, Brazil
| | - Rafael Andrade Menolli
- Laboratory of Applied Immunology, Center of Medical and Pharmaceutical Sciences, Western Parana State University, Cascavel, PR, Zip Code 85819-110, Brazil.
| |
Collapse
|
2
|
Araujo Flores GV, Sandoval Pacheco CM, Ferreira AF, Tomokane TY, Nunes JB, Colombo FA, Sosa-Ochoa WH, Zúniga C, Silveira FT, Corbett CEP, Laurenti MD. Leishmania (L.) infantum chagasi isolated from skin lesions of patients affected by non-ulcerated cutaneous leishmaniasis lead to visceral lesion in hamsters. Parasitol Int 2023; 93:102723. [PMID: 36566911 DOI: 10.1016/j.parint.2022.102723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/20/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
In Central America, Leishmania (L.) infantum chagasi infection causes visceral leishmaniasis (VL) and non-ulcerated cutaneous leishmaniasis (NUCL). The aim of the present study was to evaluate the course of an experimental infection in hamsters caused by L. (L.) infantum chagasi isolated from patients affected by NUCL compared with a strain isolated from a patient with VL. Stationary phase parasites in culture were inoculated through subcutaneous and intraperitoneal routes in hamsters. Following the post-infection times, a histopathological study, parasite load and cytokine determination in skin from the cutaneous inoculation site and viscera were performed. Animals subcutaneously infected with the different strains did not develop macroscopic lesions at the inoculation site, and the histopathological changes in the dermis were very slight. Regarding the histopathological study of the viscera, we observed the portal mononuclear inflammatory infiltrate, the presence of nodules in the hepatic parenchyma and the proliferation of macrophages in the spleen, which increased over the infection course. Overall, the parasite load in the liver and spleen and in the total IgG titres in the sera of infected hamster showed an increase with the time of infection, regardless of the route of inoculation. Regarding cellular immunity, we did not observe an increase or decrease in pro- and anti-inflammatory cytokines compared to the healthy control, except for IL-10, which was evident in the infected animals. The data showed that strains isolated from NUCL cause visceral lesions in the hamsters regardless of the route of inoculation, and they were similar to parasites isolated from VL humans.
Collapse
Affiliation(s)
- Gabriela V Araujo Flores
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Carmen M Sandoval Pacheco
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Aurea F Ferreira
- Laboratório de Investigação Médica, LIM50, Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo, HCFMUSP, SP, Brazil
| | - Thaise Yumie Tomokane
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | | | | | - Wilfredo H Sosa-Ochoa
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil; Instituto de Investigaciones en Microbiologia, Universidad Nacional Autónoma de Honduras, Tegucigalpa, Honduras
| | - Concepción Zúniga
- Departamento de Vigilancia de la Salud, Hospital Escuela, Tegucigalpa, Honduras
| | - Fernando T Silveira
- Instituto Evandro Chagas, Belém, PA, Brazil; Universidade Federal do Pará, Belém, PA, Brazil
| | - Carlos E P Corbett
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Márcia D Laurenti
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.
| |
Collapse
|
3
|
Sandoval Pacheco CM, Araujo Flores GV, Ferreira AF, da Matta VLR, de Castro Gomes CM, Sosa-Ochoa WH, Zúniga C, Silveira FT, Corbett CEP, Laurenti MD. Role of antigen-presenting cells in non-ulcerated skin lesions caused by Leishmania (Leishmania) infantum chagasi. Parasite Immunol 2023; 45:e12971. [PMID: 36695719 DOI: 10.1111/pim.12971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/26/2023]
Abstract
In Central America, infection by Leishmania (Leishmania) infantum chagasi causes visceral leishmaniasis and non-ulcerated cutaneous leishmaniasis (NUCL). This work aimed to evaluate the participation of subpopulations of antigen-presenting cells in skin lesions of patients affected by NUCL through double-staining immunohistochemistry using cellular and intracellular markers. Twenty-three skin biopsies from patients affected by NUCL were used. Histological sections stained by HE were used for histopathological study. Immunohistochemical studies were performed using primary antibodies against Langerhans cells, dermal dendritic cells, T lymphocytes, and the cytokines IL-12, IFN-γ, TNF-α, iNOS, and IL-10. The histopathological lesions were characterized by an inflammatory infiltrate, predominantly lymphohistiocytic, of variable intensity, with a diffuse arrangement associated with epithelioid granulomas and discreet parasitism. Double-staining immunohistochemistry showed higher participation of dendritic cells producing the proinflammatory cytokine IL-12 in relation to the other evaluated cytokines. Activation of the cellular immune response was marked by a higher density of CD8 Tc1-lymphocytes followed by CD4 Th1-lymphocytes producing mainly IFN-γ. The data obtained in the present study suggest that antigen-presenting cells play an important role in the in situ immune response through the production of proinflammatory cytokines, directing the cellular immune response preferentially to the Th1 and Tc1 types in NUCL caused by L. (L.) infantum chagasi.
Collapse
Affiliation(s)
- Carmen M Sandoval Pacheco
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Gabriela V Araujo Flores
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Aurea F Ferreira
- Laboratorio de Investigação Médica, LIM50, Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo, HCFMUSP, São Paulo, SP, Brazil
| | - Vânia L R da Matta
- Laboratorio de Investigação Médica, LIM50, Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo, HCFMUSP, São Paulo, SP, Brazil
| | - Claudia M de Castro Gomes
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Wilfredo H Sosa-Ochoa
- Instituto de Investigaciones en Microbiologia, Universidad Nacional Autónoma de Honduras, Tegucigalpa, Honduras
| | - Concepción Zúniga
- Departamento de Vigilancia de la Salud, Hospital Escuela, Tegucigalpa, Honduras
| | - Fernando T Silveira
- Instituto Evandro Chagas, Belém, PA, Brazil.,Universidade Federal do Pará, Belém, PA, Brazil
| | - Carlos E P Corbett
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Márcia D Laurenti
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| |
Collapse
|
4
|
Rodrigues GF, Alcântara LS, Barros JPB, de Lima ACS, Campos MB, Moraes C, Ferreira AF, Matta VLR, Laurenti MD, Corbett CEP, Silveira FT, Gomes CMC. In situ expression of Th17 immunologic mediators in American cutaneous leishmaniasis caused by Leishmania (V.) braziliensis and Leishmania (L.) amazonensis in the Brazilian Amazon. FRONTIERS IN TROPICAL DISEASES 2023. [DOI: 10.3389/fitd.2023.1067595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
American cutaneous leishmaniasis (ACL) presents a wide spectrum of clinical and immunopathological manifestations. In Brazil, Leishmania (L.) amazonensis[La] and Leishmania(V.)braziliensis[Lb] show the highest pathogenic potential for humans causing different clinical forms: localized cutaneous leishmaniasis (LCL : Lb/La), anergic diffuse cutaneous leishmaniasis (ADCL : La) and mucocutaneous leishmaniasis (MCL : Lb). ADCL and MCL are the most severe forms and infection leads to a cellular immune response at the hyposensitivity and hypersensitivity poles. Th17-cells are involved in the ACL pathogenesis, are derived from naïve TCD4+ cells regulated by RORγt, differentiate in presence of IL-6, TGF-β, IL- 1β, IL-23 and express IL-17. Aim of this study was to characterize the cellular immune response mediated by Th17-profile cells through in situ determination of the expression of RORγt, IL-17, IL-6, TGF-β, IL-1β, and IL-23 in the ACL clinical-immunopathological spectrum caused by L.(L.)amazonensis and L.(V.)braziliensis. Biopsies of skin and mucosal lesions from forty patients including ADCL(n=8), LCL[La](n=17), LCL[Lb](n=9) and MCL(n=6), were examined by immunohistochemistry. The immunostained cells density (cells/mm2) was determined in image analysis system using AxionVision 4.8 software (Zeiss). As the disease evolution time (DET) was different among ACL patients, the effect of DET on the expression of immunological markers was evaluated in different clinical forms and histopathological changes, using ANCOVA. Our results showed significantly increased expression of RORγt, IL-17, IL-6, IL-1β and IL-23 in patients with ACL polar forms (ADCL and MCL); higher TGF-β expression was found in ADCL. DET influenced the expression of RORγt and IL-6 in: clinical forms of ACL and in categories of parasitism. DET also affected the production of RORγt, IL-17, IL-6, TGF-β and IL-1β in types of inflammatory infiltrate, evidencing that DET had effect on the expression of Th17 profile cytokines in ACL. Together, the expression of immunological mediators of Th17 profile in the ACL spectrum, as well as the DET effect, demonstrate the participation of this cell lineage in the immunopathogenesis of ACL, mainly in the polar and more severe forms of ACL spectrum. The dubious role played by Th17-cells may favors immune response suppression and parasitic persistence in ADCL, while in MCL it contributes to an exacerbated immune response and parasite scarcity.
Collapse
|
5
|
Segura GBR, Ochoa WHS, da Matta VLR, Martínez M, Tercero CR, Gonzalez RR, Pacheco CMS, Flores GVA, Silveira FT, Henriquez MMR, Laurenti MD. Can domestic dogs be considered a good reservoir of Leishmania (L.) infantum chagasi in an endemic area of nonulcerated cutaneous leishmaniasis in Southern Honduras? Rev Inst Med Trop Sao Paulo 2023; 65:e24. [PMID: 36995877 PMCID: PMC10041965 DOI: 10.1590/s1678-9946202365024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 02/03/2023] [Indexed: 03/30/2023] Open
Abstract
Dogs are considered to be the main domestic reservoir associated with the transmission of Leishmania (L.) infantum chagasi to humans in endemic areas of visceral leishmaniasis in America. However, little is known about the role of canines as a source of infection in endemic areas of nonulcerated cutaneous leishmaniasis (NUCL). Therefore, the objective of the present study was to investigate the role of dogs as a possible reservoir of the parasite in Southern Honduras. Dogs (n = 107) living with individuals affected by NUCL were clinically examined and biological material was collected for parasitological and immunological diagnosis. Most animals showed a healthy appearance and a few presented slight weight loss (64%), alopecia (7%), onychogryphosis (5%) and skin lesions (1%). The overall seroprevalence of Leishmania infection based on the DDP ® quick test and/or in-house ELISA serological test was 41%. The presence of the parasite’s DNA was confirmed in 94% of the dogs; however, the average parasite load in the buffy coat was low at 6.09 parasites/µL, ranging between 0.221 and 50.2. The skin of seropositive dogs examined by histopathology using paraffin sections stained by hematoxylin and immunohistochemistry did not show cutaneous lesions or parasite amastigotes. Based on the absence of parasites in the skin and the low parasite load detected in the buffy coat, it seems that the dog does not represent a good source of infection for the vector in the endemic area of NUCL transmission in Southern Honduras. Other domestic and/or wild animals should be investigated.
Collapse
Affiliation(s)
- Gabriela Beatriz Rodriguez Segura
- Universidad Nacional Autónoma de Honduras , Instituto de Investigaciones en Microbiologia , Tegucigalpa , Honduras
- Universidad Nacional Autónoma de Honduras , Posgrado en Salud Pública , Tegucigalpa , Honduras
| | - Wilfredo Humberto Sosa Ochoa
- Universidad Nacional Autónoma de Honduras , Instituto de Investigaciones en Microbiologia , Tegucigalpa , Honduras
| | - Vânia Lúcia Ribeiro da Matta
- Universidade de São Paulo , Faculdade de Medicina , Hospital das Clínicas , Laboratório de Investigação Médica (LIM-50), São Paulo , São Paulo , Brazil
| | - Mercedes Martínez
- Universidad Nacional Autónoma de Honduras , Posgrado en Salud Pública , Tegucigalpa , Honduras
| | - Carol Rodriguez Tercero
- Universidad Nacional Autónoma de Honduras , Instituto de Investigaciones en Microbiologia , Tegucigalpa , Honduras
| | - Raquel Romero Gonzalez
- Universidad Nacional Autónoma de Honduras , Instituto de Investigaciones en Microbiologia , Tegucigalpa , Honduras
| | - Carmen M. Sandoval Pacheco
- Universidade de São Paulo , Faculdade de Medicina , Laboratório de Patologia de Moléstias Infecciosas , São Paulo , São Paulo , Brazil
| | - Gabriela V. Araujo Flores
- Universidade de São Paulo , Faculdade de Medicina , Laboratório de Patologia de Moléstias Infecciosas , São Paulo , São Paulo , Brazil
| | - Fernando Tobias Silveira
- Instituto Evandro Chagas , Laboratório de Leishmanioses , Belém , Pará , Brazil
- Universidade Federal do Pará , Núcleo de Medicina Tropical , Belém , Pará , Brazil
| | | | - Márcia Dalastra Laurenti
- Universidade de São Paulo , Faculdade de Medicina , Laboratório de Patologia de Moléstias Infecciosas , São Paulo , São Paulo , Brazil
| |
Collapse
|
6
|
Baharvandi Z, Salimi A, Arjmand R, Jelowdar A, Rafiei A. Development, Characterization, and In Vitro Biological Performance of Amphotericin B and Terbinafine Microemulsions Against Leishmania major. Curr Microbiol 2022; 79:386. [DOI: 10.1007/s00284-022-03075-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 10/04/2022] [Indexed: 11/06/2022]
|
7
|
Joorabloo A, Liu T. Recent advances in nanomedicines for regulation of macrophages in wound healing. J Nanobiotechnology 2022; 20:407. [PMID: 36085212 PMCID: PMC9463766 DOI: 10.1186/s12951-022-01616-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 08/30/2022] [Indexed: 11/10/2022] Open
Abstract
Macrophages are essential immune cells and play a major role in the immune response as pro-inflammatory or anti-inflammatory agents depending on their plasticity and functions. Infiltration and activation of macrophages are usually involved in wound healing. Herein, we first described macrophage polarization and their critical functions in wound healing process. It is addressed how macrophages collaborate with other immune cells in the wound microenvironment. Targeting macrophages by manipulating or re-educating macrophages in inflammation using nanomedicines is a novel and feasible strategy for wound management. We discussed the design and physicochemical properties of nanomaterials and their functions for macrophages activation and anti-inflammatory signaling during wound therapy. The mechanism of action of the strategies and appropriate examples are also summarized to highlight the pros and cons of those approaches. Finally, the potential of nanomedicines to modulate macrophage polarization for skin regeneration is discussed.
Collapse
Affiliation(s)
- Alireza Joorabloo
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, 2145, Australia
| | - Tianqing Liu
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, 2145, Australia.
| |
Collapse
|
8
|
Zhang T, Zhang Y, Yang Z, Jiang Y, Sun L, Huang D, Tian M, Shen Y, Deng J, Hou J, Ma Y. Echinococcus multilocularis protoscoleces enhance glycolysis to promote M2 Macrophages through PI3K/Akt/mTOR Signaling Pathway. Pathog Glob Health 2022; 117:409-416. [PMID: 35876088 PMCID: PMC10177676 DOI: 10.1080/20477724.2022.2104055] [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: 10/16/2022] Open
Abstract
Alveolar Echinococcosis (AE) is a zoonotic parasitic disease caused by Echinococcus multilocularis, but its pathogenesis remains unclear. The primary objective of this study is to explore whether Echinococcus multilocularis protoscoleces (PSCs) regulate macrophage polarization and glucose metabolism by PI3K/Akt/mTOR signaling pathway. We found that large numbers of CD68+ macrophages gathered in close liver issue from the lesion in AE patients. PSCs preferentially differentiated into M2 macrophages and the expressions of HK1, PFKL, PKM2, PI3K, Akt, p-Akt, mTOR and p-mTOR increased. The above results show that Echinococcus multilocularis protoscoleces enhance glycolysis to promote M2 macrophages through PI3K/Akt/mTOR signaling pathway.
Collapse
Affiliation(s)
- Tao Zhang
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai province, China.,Key Laboratory of Application of High Altitude Medicine in Qinghai, Qinghai University, Xining, Qinghai province, China.,Department of Rehabilitation Medicine, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Yaogang Zhang
- Central Laboratory of Qinghai University Affiliated Hospital, Qinghai University Affiliated Hospital, Xining, Qinghai province, China.,Qinghai Province Research Key Laboratory of Echinococcosis, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Zihan Yang
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai province, China.,Key Laboratory of Application of High Altitude Medicine in Qinghai, Qinghai University, Xining, Qinghai province, China.,Department of Neurology, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Yuan Jiang
- Central Laboratory of Qinghai University Affiliated Hospital, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Li Sun
- Central Laboratory of Qinghai University Affiliated Hospital, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Dengliang Huang
- Central Laboratory of Qinghai University Affiliated Hospital, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Meiyuan Tian
- Central Laboratory of Qinghai University Affiliated Hospital, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Yinhong Shen
- Department of Pediatrics, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Jun Deng
- Department of Pediatrics, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Jing Hou
- Central Laboratory of Qinghai University Affiliated Hospital, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| | - Yanyan Ma
- Central Laboratory of Qinghai University Affiliated Hospital, Qinghai University Affiliated Hospital, Xining, Qinghai province, China.,Qinghai Province Research Key Laboratory of Echinococcosis, Qinghai University Affiliated Hospital, Xining, Qinghai province, China.,Department of Pediatrics, Qinghai University Affiliated Hospital, Xining, Qinghai province, China
| |
Collapse
|
9
|
Monteiro J, Passero LFD, Jesus JA, Laurenti MD, Lago JHG, Soares MG, Batista ANL, Batista JM, Sartorelli P. Absolute configuration and antileishmanial activity of (-)-cyclocolorenone isolated from Duguetia lanceolata (Annonaceae). Curr Top Med Chem 2022; 22:1626-1633. [PMID: 35796444 DOI: 10.2174/1568026622666220707095718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/13/2022] [Accepted: 05/26/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND The fractionation of the n-hexane phase of the EtOH extract from the leaves of Duguetia lanceolata (Annonaceae) led to the identification of the sesquiterpene (-)- cyclocolorenone. OBJECTIVE Chemical characterization, including determination of the absolute stereochemistry, and in vitro evaluation of antileishmanial activity of the sesquiterpene (-)-cyclocolorenone, isolated from D. lanceolata were carried out. METHODS (-)-Cyclocolorenone was isolated from D. lanceolata leaves using different chromatographic steps and its structure was defined by analysis of NMR and ESI-HRMS data. Additionally, the absolute configuration of (-)-cyclocolorenone was ambiguously assigned by means of vibrational circular dichroism (VCD). Antileishmanial activity of (-)-cyclocolorenone was evaluated on promastigote and amastigote forms of Leishmania (Leishmania) amazonensis. The integrity of the cell membrane of L. (L.) amazonensis was analyzed using the SYTOX green probe. RESULTS (-)-(1R,6S,7R,10R)-Cyclocolorenone displayed activity against promastigotes and amastigotes forms of L. (L.) amazonensis with IC50 of 4.54 and 28.44 , respectively. Furthermore, this compound was non-toxic in J774 macrophage cells (CC50 > 458.71 ) with a selectivity index > 100 (promastigotes) and > 32.2 (amastigotes). Additionally, (-)-cyclocolorenone was observed to target the parasite cell membrane. CONCLUSION Obtained data suggested that (-)-cyclocolorenone, in which absolute configuration was determined, can be considered as a scaffold for the development of new drugs for the treatment of leishmaniasis.
Collapse
Affiliation(s)
- Jackson Monteiro
- Department of Chemistry, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
| | - Luiz Felipe D Passero
- Instituto de Biociências, Universidade Estadual Paulista, São Vicente, Brazil.,Institute for Advanced Studies of Ocean, UNESP, São Vicente, Brazil
| | - Jéssica A Jesus
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Márcia D Laurenti
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - João H G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Marisi G Soares
- Instituto de Química, Universidade Federal de Alfenas, Alfenas, Brazil
| | | | - João M Batista
- Instituto de Ciência e Tecnologia, Universidade Federal de São Paulo, São José dos Campos, Brazil
| | - Patricia Sartorelli
- Department of Chemistry, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
| |
Collapse
|
10
|
Li D, Ma H, Shu Q, Wang T, Li L, Huang P, Lou K, Xu H. Arsenite inhibits M2a polarization of macrophages through downregulation of peroxisome proliferator-activated receptor gamma. Toxicol Appl Pharmacol 2022; 450:116142. [PMID: 35777529 DOI: 10.1016/j.taap.2022.116142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 06/08/2022] [Accepted: 06/23/2022] [Indexed: 11/28/2022]
Abstract
Arsenite (As+3) is a group one human carcinogen, which has been associated with many diseases. Previous studies indicated that As+3 could inhibit wound healing and repair. M2a cells are known as tissue remodeling macrophages, which play an important role in wound repair process. Peroxisome proliferator-activated receptor gamma (PPAR-γ), a key regulator of lipid and glucose metabolism, was found to mediate the IL-4-dependent M2a polarization of macrophages. In the present study, As+3 induced dose-dependent inhibition of M2a polarization starting from 0.1 μM in THP-1-derived macrophages stimulated with 20 ng/mL IL-4. Increased lipid accumulation and decreased PPAR-γ expression were also observed in As+3-treated M2a macrophages. Rosiglitazone (RSG), a potent PPAR-γ agonist, alleviated the suppressions of PPAR-γ and M2a polarization induced by 2 μM As+3. Collectively, these results not only demonstrated that As+3 was able to inhibit polarization of M2a cells through PPAR-γ suppression, but also indicated that PPAR-γ could be utilized as a target for the prevention and treatment of As+3-induced immunotoxicity.
Collapse
Affiliation(s)
- Dan Li
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Huijuan Ma
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Qi Shu
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Tingqian Wang
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Linyi Li
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Ping Huang
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Kaiyan Lou
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
| | - Huan Xu
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
| |
Collapse
|
11
|
Arumugam S, Scorza BM, Petersen C. Visceral Leishmaniasis and the Skin: Dermal Parasite Transmission to Sand Flies. Pathogens 2022; 11:610. [PMID: 35745464 PMCID: PMC9228576 DOI: 10.3390/pathogens11060610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/12/2022] [Accepted: 05/19/2022] [Indexed: 12/10/2022] Open
Abstract
Visceral leishmaniasis is a parasitic disease with significant dermal tropism. The skin is an important site of infection contributing to parasite transmission to naïve sand flies, but understanding how parasitism of host skin and the related immune microenvironment supports or prevents skin parasite replication is now the focus of major investigation in the field of leishmaniasis research. Here, we review dermatoimmunology during visceral leishmaniasis (VL), dermal Leishmania parasite burden, and the role of skin parasitism in transmissibility to sand fly vectors. First, we discuss the epidemiology of VL amongst dogs, the primary zoonotic reservoir for human infection. We explore the association between spatial distribution and the burden of parasites in the skin in driving outward transmission. Factors associated with parasite persistence in the skin are examined. We discuss systemic immunity during VL and what is known about immunological correlates in the skin microenvironment. Finally, we touch on factors egested into the skin during Leishmania inoculation by sand flies. Throughout, we discuss factors associated with the early and chronic establishment of Leishmania parasites in the skin and the role of the dermal immune response.
Collapse
Affiliation(s)
- Sahaana Arumugam
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA 52242, USA; (S.A.); (B.M.S.)
- Immunology Program, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Breanna M. Scorza
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA 52242, USA; (S.A.); (B.M.S.)
- Center for Emerging Infectious Diseases, University of Iowa Research Park, Coralville, IA 52241, USA
| | - Christine Petersen
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA 52242, USA; (S.A.); (B.M.S.)
- Immunology Program, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
- Center for Emerging Infectious Diseases, University of Iowa Research Park, Coralville, IA 52241, USA
| |
Collapse
|