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Yang JH, Liu G, Lu S, He J, Burotto M, Vincent S, Yin J, Ma X, Popat S. 319O ALTA-3: A randomized trial of brigatinib (BRG) vs alectinib (ALC) in crizotinib (CRZ)-refractory advanced ALK+ NSCLC. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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Hofman P, Su Z, Tong X, Bunn V, Jin S, Vincent S. 1087P Predictive value of Krebs von den Lungen-6 (KL-6) and surfactant protein D (SP-D) in patients (pts) with EGFR exon 20 insertion (ex20ins)-positive metastatic non-small cell lung cancer (mNSCLC) receiving mobocertinib therapy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Sudha P, Tun KS, Gupta M, Kumar G, Vincent S. Biocorrosion studies of a novel Mg70Al18Zn6Ca4Y2 low entropy multicomponent alloy in different simulated body fluids. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01685-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Brander EPA, Vincent S, McQuillan SK. Transverse Vaginal Septum Resection: Technique, Timing, and the Utility of Dilation. A Scoping Review of the Literature. J Pediatr Adolesc Gynecol 2022; 35:65-72. [PMID: 34517117 DOI: 10.1016/j.jpag.2021.09.002] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/03/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022]
Abstract
STUDY OBJECTIVE Transverse vaginal septae (TVS) are congenital, obstructive anomalies of the vagina typically presenting with abdominal pain and amenorrhea. Currently, the literature about surgical management is sparse. Postoperative complications are common. Vaginal dilation either pre- or postoperatively is sometimes recommended, the outcomes of which are poorly described. The aim of this scoping review was to guide surgical planning, namely, timing and postoperative care, to improve surgical outcomes. DESIGN, SETTING, PARTICIPANTS, AND MAIN OUTCOME MEASURES This scoping review followed the Joanna Briggs Institute framework. The population of interest was patients 21 years of age or younger with a TVS. MEDLINE, OVID and CINAHL databases were searched using the subject headings listed herein. Literature written in English and French were included. Excluded were reports on patients with concurrent urogenital anomalies or severe developmental disabilities. The resultant articles were reviewed by 2 independent researchers. A third researcher was used in cases of disagreement. Using a descriptive analytical method, data were extracted from the included articles. RESULTS We screened 1441 articles for eligibility; 41 articles met criteria, which described 152 cases of TVS. The most common management was simple vaginal excision. Five studies included outcomes from preoperative dilation, and 11 from postoperative dilation. There were 21 cases of postoperative vaginal stenosis; half (11/21) occurred without postoperative dilation. CONCLUSION The goal of this review was to describe how TVS are managed and provide guidance for management options. Although the literature was sparse, the authors believe that management in a tertiary center, and surgical delay until the patient is ready to participate in vaginal dilation will improve outcomes for patients with TVS. Further prospective studies are needed to guide surgical planning.
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Affiliation(s)
- E P A Brander
- Department of Obstetrics and Gynecology, Division of Pediatric and Adolescent Gynecology, Baylor College of Medicine, Houston, Texas.
| | - S Vincent
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario, Canada
| | - S K McQuillan
- Department of Obstetrics and Gynecology, University of Calgary, Calgary, Alberta, Canada
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Spira A, Ramalingam S, Neal J, Piotrowska Z, Mekhail T, Tsao A, Gentzler R, Riely G, Bazhenova L, Gadgeel S, Nguyen D, Johnson M, Vincent S, Jin S, Griffin C, Bunn V, Lin J, Churchill E, Mehta M, Janne P. OA15.01 Mobocertinib in EGFR Exon 20 Insertion–Positive Metastatic NSCLC Patients With Disease Control on Prior EGFR TKI Therapy. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Vincent S, Arokiyaraj S, Saravanan M, Dhanraj M. Molecular Docking Studies on the Anti-viral Effects of Compounds From Kabasura Kudineer on SARS-CoV-2 3CL pro. Front Mol Biosci 2020; 7:613401. [PMID: 33425994 PMCID: PMC7785853 DOI: 10.3389/fmolb.2020.613401] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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: 10/02/2020] [Accepted: 11/27/2020] [Indexed: 12/18/2022] Open
Abstract
The COVID-19 has now been declared a global pandemic by the World Health Organization. No approved drug is currently available; therefore, an urgent need has been developed for any antiviral therapy for COVID-19. Main protease 3CLpro of this novel Coronavirus (SARS-CoV-2) play a critical role in the disease propagation, and hence represent a crucial target for the drug discovery. Herein, we have applied a bioinformatics approach for drug repurposing to identify the possible potent inhibitors of SARS-CoV-2 main proteases 3CLpro (6LU7). In search of the anti-COVID-19 compound, we selected 145 phyto-compounds from Kabasura kudineer (KK), a poly-herbal formulation recommended by AYUSH for COVID-19 which are effective against fever, cough, sore throat, shortness of breath (similar to SARS-CoV2-like symptoms). The present study aims to identify molecules from natural products which may inhibit COVID-19 by acting on the main protease (3CLpro). Obtained results by molecular docking showed that Acetoside (−153.06), Luteolin 7 -rutinoside (−134.6) rutin (−133.06), Chebulagic acid (−124.3), Syrigaresinol (−120.03), Acanthoside (−122.21), Violanthin (−114.9), Andrographidine C (−101.8), myricetin (−99.96), Gingerenone -A (−93.9), Tinosporinone (−83.42), Geraniol (−62.87), Nootkatone (−62.4), Asarianin (−79.94), and Gamma sitosterol (−81.94) are main compounds from KK plants which may inhibit COVID-19 giving the better energy score compared to synthetic drugs. Based on the binding energy score, we suggest that these compounds can be tested against Coronavirus and used to develop effective antiviral drugs.
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Affiliation(s)
- Savariar Vincent
- Centre for Environmental Research and Development (CERD), Loyola College, Loyola Institute of Frontier Energy, Chennai, India
| | - Selvaraj Arokiyaraj
- Department of Food Science and Biotechnology, Sejong University, Seoul, South Korea
| | - Muthupandian Saravanan
- Division of Biomedical Science, Department of Medical Microbiology and Immunology, School of Medicine, College of Health Sciences, Mekelle University, Mekelle, Ethiopia
| | - Manoj Dhanraj
- Centre for Environmental Research and Development (CERD), Loyola College, Loyola Institute of Frontier Energy, Chennai, India
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Arokiaraj S, Vincent S, Vannam DK. Touting Traditional Knowledge and Herbal Medicine to Combat and Prevent COVID-19. Curr Pharm Biotechnol 2020; 21:1280-1281. [PMID: 33261538 DOI: 10.2174/138920102113201007102655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Selvaraj Arokiaraj
- Department of Food Science & Biotechnology, Sejong University, Seoul 05006, South Korea
| | - Savariar Vincent
- Centre for Environmental Research and Development (CERD), Loyola College, Nungambakkam, Chennai 600 034, India
| | - Dinesh K Vannam
- Centre for Environmental Research and Development (CERD), Loyola College, Nungambakkam, Chennai 600 034, India
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Riely G, Neal J, Camidge D, Spira A, Piotrowska Z, Horn L, Costa D, Tsao A, Patel J, Gadgeel S, Bazhenova L, Zhu V, West H, Vincent S, Zhu J, Jin S, Zhang S, Li S, Jänne P. P1.01-127 Antitumor Activity of the Oral EGFR/HER2 Inhibitor TAK-788 in NSCLC with EGFR Exon 20 Insertions. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Bray E, Vincent S, Anjum T. 37INTERMITTENT PNEUMATIC COMPRESSION STOCKINGS: REDUCING THE RISK OF VENOUS THROMBOEMBOLISM AND PULMONARY EMBOLISM ON THE ACUTE STROKE UNIT. Age Ageing 2019. [DOI: 10.1093/ageing/afz055.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- E Bray
- Abertawe Bro Morgannwyg University Health Board
| | - S Vincent
- Abertawe Bro Morgannwyg University Health Board
| | - T Anjum
- Abertawe Bro Morgannwyg University Health Board
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Nokman W, Benluvankar V, Maria Packiam S, Vincent S. Screening and molecular identification of heavy metal resistant Pseudomonas putida S4 in tannery effluent wastewater. Biocatalysis and Agricultural Biotechnology 2019. [DOI: 10.1016/j.bcab.2019.101052] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Vincent S, Sumit R, Bavithra S, Victoria V, Akhila N, Prabha J. Metallothionein Induced Time Dependent Histomorphometric Analysis of Clarias gariepinus Exposed to Cadmium. Bull Environ Contam Toxicol 2019; 102:32-38. [PMID: 30406814 DOI: 10.1007/s00128-018-2484-4] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 10/30/2018] [Indexed: 06/08/2023]
Abstract
Cadmium (Cd), an extremely toxic heavy metal is extensively used in modern era because of its constructive chemical and physical properties. Recently Cd contamination was estimated in India's major cities fresh water ecosystem, which may have firm impact on human health. Hence, this study was aimed to detect the time dependent effect of cadmium in fresh water fish C. gariepinus, a bioindicator species of water pollution. In a controlled environment, fishes were exposed to cadmium for different duration and analyzed for Cd accumulation. Cd induced toxicity was assessed by estimating metallothionein biomarker protein of heavy metal toxicity and histomorphometric changes in liver and kidney. Our results revealed that fish exposed to Cd induced apoptosis in fish tissues via induction of caspases and in contrast the metallothionein was also increased consistently with different doses of Cd exposure. Hence we conclude Cd induced structural damages to fishes are attributed to induction of caspases and estimating MT level in tissues can be effective biomarker to analyze the effect of acute environmental exposure to Cd.
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Affiliation(s)
- S Vincent
- Centre for Environmental Research & Development Loyola Institute of Frontier Energy, Loyola College, Chennai, 600 034, India.
| | - R Sumit
- Department of Zoology, Presidency College, Chennai, 600005, India
| | - S Bavithra
- Centre for Environmental Research & Development Loyola Institute of Frontier Energy, Loyola College, Chennai, 600 034, India
| | - V Victoria
- Centre for Environmental Research & Development Loyola Institute of Frontier Energy, Loyola College, Chennai, 600 034, India
| | - N Akhila
- Centre for Environmental Research & Development Loyola Institute of Frontier Energy, Loyola College, Chennai, 600 034, India
| | - J Prabha
- Centre for Environmental Research & Development Loyola Institute of Frontier Energy, Loyola College, Chennai, 600 034, India
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12
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Kovendan K, Meyyalazhagan A, Jebanesan A, Vincent S. Identification of chromosomal aberrations using fluorescence in situ hybridization (fish) in bladder cancer patients of south Indian region. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy047.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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13
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Kovendan K, Chandramohan B, Govindarajan M, Jebanesan A, Kamalakannan S, Vincent S, Benelli G. Orchids as Sources of Novel Nanoinsecticides? Efficacy of Bacillus sphaericus and Zeuxine gracilis-Fabricated Silver Nanoparticles Against Dengue, Malaria and Filariasis Mosquito Vectors. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1331-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Sivasubramanian S, Chandrasekar G, Svensson Akusjärvi S, Thangam R, Sathuvan M, Kumar RBS, Hussein H, Vincent S, Madhan B, Gunasekaran P, Kitambi SS. Phenotypic Screening Identifies Synergistically Acting Natural Product Enhancing the Performance of Biomaterial Based Wound Healing. Front Pharmacol 2017; 8:433. [PMID: 28769790 PMCID: PMC5513901 DOI: 10.3389/fphar.2017.00433] [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: 05/05/2017] [Accepted: 06/16/2017] [Indexed: 11/13/2022] Open
Abstract
The potential of multifunctional wound heal biomaterial relies on the optimal content of therapeutic constituents as well as the desirable physical, chemical, and biological properties to accelerate the healing process. Formulating biomaterials such as amnion or collagen based scaffolds with natural products offer an affordable strategy to develop dressing material with high efficiency in healing wounds. Using image based phenotyping and quantification, we screened natural product derived bioactive compounds for modulators of types I and III collagen production from human foreskin derived fibroblast cells. The identified hit was then formulated with amnion to develop a biomaterial, and its biophysical properties, in vitro and in vivo effects were characterized. In addition, we performed functional profiling analyses by PCR array to understand the effect of individual components of these materials on various genes such as inflammatory mediators including chemokines and cytokines, growth factors, fibroblast stimulating markers for collagen secretion, matrix metalloproteinases, etc., associated with wound healing. FACS based cell cycle analyses were carried out to evaluate the potential of biomaterials for induction of proliferation of fibroblasts. Western blot analyses was done to examine the effect of biomaterial on collagen synthesis by cells and compared to cells grown in the presence of growth factors. This work demonstrated an uncomplicated way of identifying components that synergistically promote healing. Besides, we demonstrated that modulating local wound environment using biomaterials with bioactive compounds could enhance healing. This study finds that the developed biomaterials offer immense scope for healing wounds by means of their skin regenerative features such as anti-inflammatory, fibroblast stimulation for collagen secretion as well as inhibition of enzymes and markers impeding the healing, hydrodynamic properties complemented with other features including non-toxicity, biocompatibility, and safety.
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Affiliation(s)
| | - Gayathri Chandrasekar
- Department of Microbiology, Tumor and Cell Biology, Karolinska InstitutetSolna, Sweden
| | | | - Ramar Thangam
- Department of Virology, King Institute of Preventive Medicine and ResearchChennai, India.,Council of Scientific and Industrial Research - Central Leather Research InstituteChennai, India
| | - Malairaj Sathuvan
- Department of Virology, King Institute of Preventive Medicine and ResearchChennai, India
| | - R B S Kumar
- Department of Virology, King Institute of Preventive Medicine and ResearchChennai, India
| | - Hawraa Hussein
- Department of Microbiology, Tumor and Cell Biology, Karolinska InstitutetSolna, Sweden
| | - Savariar Vincent
- Center for Environmental Research and Development, Loyola Institute of Frontier Energy, Loyola CollegeChennai, India
| | - Balaraman Madhan
- Council of Scientific and Industrial Research - Central Leather Research InstituteChennai, India
| | - Palani Gunasekaran
- Department of Virology, King Institute of Preventive Medicine and ResearchChennai, India
| | - Satish S Kitambi
- Department of Microbiology, Tumor and Cell Biology, Karolinska InstitutetSolna, Sweden
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15
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Shomali M, Cheng J, Koundinya M, Weinstein M, Malkova N, Sun F, Hebert A, Cindachao M, Hoffman D, McManus J, Levit M, Pollard J, Vincent S, Besret L, Adrian F, Winter C, El-Ahmad Y, Halley F, Hsu K, Lager J, Garcia-Echeverria C, Bouaboula M. Abstract P3-04-05: Identification of SAR439859, an orally bioavailable selective estrogen receptor degrader (SERD) that has strong antitumor activity in wild-type and mutant ER+ breast cancer models. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p3-04-05] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Estrogen receptor positive (ER+) breast cancer accounts for 70% of all breast cancers and is primarily treated with endocrine therapy. Approximately 40% of patients on endocrine therapy will become resistant via a number of mechanisms. There is evidence that in many cases ER continues to play a central role, including mutations in ER leading to a constitutively active receptor. Estrogen receptor degraders like fulvestrant are effective in shutting down ER signaling; however, poor pharmaceutical properties limit fulvestrant clinical activity and prevent it from achieving maximum receptor blockade.
We describe the discovery of SAR439859, a novel, orally bioavailable SERD that is a potent antagonist and degrader of ER both in vitro and in vivo. SAR439859 has robust activity in multiple ER+ breast cancer cell lines including cells that are resistant to tamoxifen as well as cell lines harboring ER mutants. Across a large panel of ER+ cells, SAR439859 demonstrated broad and superior ER degradation activity than most SERDs undergoing clinical testing. This leads to a profound inhibition of ER signaling, better inhibition of cell growth and results in improved in vivo efficacy. SAR439859 demonstrated tumor regression in all ER+ BC models including MCF7-ESR1 mutant-Y537S model, as well as patient-derived xenograft model that is resistant to endocrine therapies. Furthermore, SAR439859 displays limited cross-resistance with other class of SERDs.
Taken together, these results suggest that SAR439859 would be of therapeutic benefit in metastatic BC setting for patients harboring wild type or mutant ER. SAR439859 is being advanced toward the clinic.
Citation Format: Shomali M, Cheng J, Koundinya M, Weinstein M, Malkova N, Sun F, Hebert A, Cindachao M, Hoffman D, McManus J, Levit M, Pollard J, Vincent S, Besret L, Adrian F, Winter C, El-Ahmad Y, Halley F, Hsu K, Lager J, Garcia-Echeverria C, Bouaboula M. Identification of SAR439859, an orally bioavailable selective estrogen receptor degrader (SERD) that has strong antitumor activity in wild-type and mutant ER+ breast cancer models [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P3-04-05.
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Affiliation(s)
- M Shomali
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - J Cheng
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - M Koundinya
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - M Weinstein
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - N Malkova
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - F Sun
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - A Hebert
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - M Cindachao
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - D Hoffman
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - J McManus
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - M Levit
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - J Pollard
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - S Vincent
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - L Besret
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - F Adrian
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - C Winter
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - Y El-Ahmad
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - F Halley
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - K Hsu
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - J Lager
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | | | - M Bouaboula
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
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Brindha S, Sundaramurthi JC, Velmurugan D, Vincent S, Gnanadoss JJ. Docking-based virtual screening of known drugs against murE of Mycobacterium tuberculosis towards repurposing for TB. Bioinformation 2016; 12:359-367. [PMID: 28275291 PMCID: PMC5312000 DOI: 10.6026/97320630012368] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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: 10/25/2016] [Accepted: 11/08/2016] [Indexed: 01/04/2023] Open
Abstract
Repurposing has gained momentum globally and become an alternative avenue for drug discovery because of its better success rate,
and reduced cost, time and issues related to safety than the conventional drug discovery process. Several drugs have already been
successfully repurposed for other clinical conditions including drug resistant tuberculosis (DR-TB). Though TB can be cured
completely with the use of currently available anti-tubercular drugs, emergence of drug resistant strains of Mycobacterium tuberculosis
and the huge death toll globally, together necessitate urgently newer and effective drugs for TB. Therefore, we performed virtual
screening of 1554 FDA approved drugs against murE, which is essential for peptidoglycan biosynthesis of M. tuberculosis. We used
Glide and AutoDock Vina for virtual screening and applied rigid docking algorithm followed by induced fit docking algorithm in
order to enhance the quality of the docking prediction and to prioritize drugs for repurposing. We found 17 drugs binding strongly
with murE and three of them, namely, lymecycline, acarbose and desmopressin were consistently present within top 10 ranks by both
Glide and AutoDock Vina in the induced fit docking algorithm, which strongly indicates that these three drugs are potential
candidates for further studies towards repurposing for TB.
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Affiliation(s)
| | | | - Devadasan Velmurugan
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai - 600025, Tamil Nadu, India
| | - Savariar Vincent
- Loyola College, Nungambakkam, Chennai - 600034, Tamil Nadu, India
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Sundaramurthi JC, Hanna LE, Selvaraju S, Brindha S, Joel Gnanadoss J, Vincent S, Singh H, Swaminathan S. TBDRUGS – Database of drugs for tuberculosis. Tuberculosis (Edinb) 2016; 100:69-71. [DOI: 10.1016/j.tube.2016.06.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Revised: 06/13/2016] [Accepted: 06/30/2016] [Indexed: 10/21/2022]
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Vincent S, Kovendan K, Chandramohan B, Kamalakannan S, Kumar PM, Vasugi C, Praseeja C, Subramaniam J, Govindarajan M, Murugan K, Benelli G. Swift Fabrication of Silver Nanoparticles Using Bougainvillea glabra: Potential Against the Japanese Encephalitis Vector, Culex tritaeniorhynchus Giles (Diptera: Culicidae). J CLUST SCI 2016. [DOI: 10.1007/s10876-016-1038-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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19
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Piaton E, Fabre M, Goubin-Versini I, Bretz-Grenier MF, Courtade-Saïdi M, Vincent S, Belleannée G, Thivolet F, Boutonnat J, Debaque H, Fleury-Feith J, Vielh P, Egelé C, Bellocq JP, Michiels JF, Cochand-Priollet B. Guidelines for May-Grünwald-Giemsa staining in haematology and non-gynaecological cytopathology: recommendations of the French Society of Clinical Cytology (SFCC) and of the French Association for Quality Assurance in Anatomic and Cytologic Pathology (AFAQAP). Cytopathology 2016; 27:359-68. [PMID: 27146425 DOI: 10.1111/cyt.12323] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Since the guidelines of the International Committee for Standardisation in Haematology (ICSH) in 1984 and those of the European Committee for External Quality Assessment Programmes in Laboratory Medicine (EQALM) in 2004, no leading organisation has published technical recommendations for the preparation of air-dried cytological specimens using May-Grünwald-Giemsa (MGG) staining. DATA SOURCES Literature data were retrieved using reference books, baseline-published studies, articles extracted from PubMed/Medline and Google Scholar, and online-available industry datasheets. RATIONALE The present review addresses all pre-analytical issues concerning the use of Romanowsky's stains (including MGG) in haematology and non-gynaecological cytopathology. It aims at serving as actualised, best practice recommendations for the proper handling of air-dried cytological specimens. It, therefore, appears complementary to the staining criteria of the non-gynaecological diagnostic cytology handbook edited by the United Kingdom National External Quality Assessment Service (UK-NEQAS) in February 2015.
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Affiliation(s)
- E Piaton
- Centre de Pathologie Est, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, Bron, France. .,Société Française de Cytologie Clinique (SFCC), Paris, France.
| | - M Fabre
- Société Française de Cytologie Clinique (SFCC), Paris, France.,Service d'Anatomie et Cytologie Pathologiques, Hôpital Universitaire Necker Enfants Malades, Université Paris Descartes, Paris, France
| | - I Goubin-Versini
- Société Française de Cytologie Clinique (SFCC), Paris, France.,Laboratoire d'Anatomo-Pathologie, Centre Hospitalier René Dubos, Cergy Pontoise, France
| | - M-F Bretz-Grenier
- Société Française de Cytologie Clinique (SFCC), Paris, France.,Cabinet de Pathologie, Strasbourg, France
| | - M Courtade-Saïdi
- Société Française de Cytologie Clinique (SFCC), Paris, France.,Département d'Anatomie et Cytologie Pathologiques, IUC Toulouse Oncopôle, Toulouse, France
| | - S Vincent
- Unité de Cytopathologie, Gustave Roussy, Villejuif, France
| | - G Belleannée
- Société Française de Cytologie Clinique (SFCC), Paris, France.,Service d'Anatomie et Cytologie Pathologiques, Hôpital Haut-Lévêque (CHU de Bordeaux), Pessac, France
| | - F Thivolet
- Centre de Pathologie Est, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, Bron, France.,Société Française de Cytologie Clinique (SFCC), Paris, France
| | - J Boutonnat
- Société Française de Cytologie Clinique (SFCC), Paris, France.,UF de Cytologie Pathologique, Institut de Biologie et de Pathologie, CHU de Grenoble, Grenoble, France
| | - H Debaque
- Société Française de Cytologie Clinique (SFCC), Paris, France.,Cabinet de Pathologie, SCP des Drs Bloget et Declerck, Avon, France
| | - J Fleury-Feith
- Société Française de Cytologie Clinique (SFCC), Paris, France.,Service d'Anatomie et Cytologie Pathologiques, Hôpital Tenon, Paris, France
| | - P Vielh
- Société Française de Cytologie Clinique (SFCC), Paris, France.,Unité de Cytopathologie, Gustave Roussy, Villejuif, France
| | - C Egelé
- Association Française d'Assurance Qualité en Anatomie et Cytologie Pathologiques (AFAQAP), Strasbourg, France.,Département de Pathologie, Hôpital de Hautepierre, CHU de Strasbourg, Strasbourg, France
| | - J-P Bellocq
- Association Française d'Assurance Qualité en Anatomie et Cytologie Pathologiques (AFAQAP), Strasbourg, France.,Département de Pathologie, Hôpital de Hautepierre, CHU de Strasbourg, Strasbourg, France
| | - J-F Michiels
- Association Française d'Assurance Qualité en Anatomie et Cytologie Pathologiques (AFAQAP), Strasbourg, France.,Service d'Anatomie et Cytologie Pathologiques, Hôpital Pasteur, CHU de Nice, Nice, France
| | - B Cochand-Priollet
- Société Française de Cytologie Clinique (SFCC), Paris, France.,Association Française d'Assurance Qualité en Anatomie et Cytologie Pathologiques (AFAQAP), Strasbourg, France.,Service d'Anatomie et Cytologie Pathologiques, Université Paris Descartes, Hôpitaux Universitaires Paris Centre, site Cochin, AP-HP, Paris, France
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Vivek R, Thangam R, Kumar SR, Rejeeth C, Senthil Kumar G, Sivasubramanian S, Vincent S, Gopi D, Kannan S. Correction to HER2 Targeted Breast Cancer Therapy with Switchable "Off/On" Multifunctional "Smart" Magnetic Polymer Core-Shell Nanocomposites. ACS Appl Mater Interfaces 2016; 8:10048. [PMID: 27049328 DOI: 10.1021/acsami.6b01968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Arokiyaraj S, Vincent S, Saravanan M, Lee Y, Oh YK, Kim KH. Green synthesis of silver nanoparticles using Rheum palmatum root extract and their antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa. Artificial Cells, Nanomedicine, and Biotechnology 2016; 45:372-379. [DOI: 10.3109/21691401.2016.1160403] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Selvaraj Arokiyaraj
- Institute of Green Bioscience and Technology, Seoul National University, Pyeongchang, Republic of Korea
| | - Savariar Vincent
- Centre for Environmental Research and Development, Loyola College, Chennai, India
| | - Muthupandian Saravanan
- Department of Medical Microbiology and Immunology, Institute of Biomedical Sciences, Mekelle University, Mekelle, Ethiopia
| | - Yoonseok Lee
- Institute of Green Bioscience and Technology, Seoul National University, Pyeongchang, Republic of Korea
| | - Young Kyoon Oh
- Department of Animal Nutrition and Physiology, National Institute of Animal Science, RDA, Jeonju, Republic of Korea
| | - Kyoung Hoon Kim
- Institute of Green Bioscience and Technology, Seoul National University, Pyeongchang, Republic of Korea
- Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang, Republic of Korea
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Vivek R, Thangam R, Kumar SR, Rejeeth C, Kumar GS, Sivasubramanian S, Vincent S, Gopi D, Kannan S. HER2 Targeted Breast Cancer Therapy with Switchable "Off/On" Multifunctional "Smart" Magnetic Polymer Core-Shell Nanocomposites. ACS Appl Mater Interfaces 2016; 8:2262-2279. [PMID: 26771508 DOI: 10.1021/acsami.5b11103] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Multifunctional magnetic polymer nanocombinations are gaining importance in cancer nanotheranostics due to their safety and their potential in delivering targeted functions. Herein, we report a novel multifunctional core-shell magnetic polymer therapeutic nanocomposites (NCs) exhibiting pH dependent "Off-On" release of drug against breast cancer cells. The NCs are intact in blood circulation ("Off" state), i.e., at physiological pH, whereas activated ("On" state) at intracellular acidic pH environment of the targeted breast cancer cells. The NCs are prepared by coating the cannonball (iron nanocore) with hydrophobic nanopockets of pH-responsive poly(d,l-lactic-co-glycolic acid) (PLGA) polymer nanoshell that allows efficient loading of therapeutics. Further, the nanocore-polymer shell is stabilized by poly(vinylpyrrolidone) (PVP) and functionalized with a targeting HER2 ligand. The prepared Her-Fe3O4@PLGA-PVP nanocomposites facilitate packing of anticancer drug (Tamoxifen) without premature release in the bloodstream, recognizing the target cells through binding of Herceptin antibody to HER2, a cell surface receptor expressed by breast cancer cells to promote HER2 receptor mediated endocytosis and finally releasing the drug at the intracellular site of tumor cells ("On" state) to induce apoptosis. The therapeutic efficiency of hemo/cytocompatible NCs drug delivery system (DDS) in terms of targeted delivery and sustained release of therapeutic agent against breast cancer cells was substantiated by in vitro and in vivo studies. The multifunctional properties of Her-Tam-Fe3O4@PLGA-PVP NCs may open up new avenues in cancer therapy through overcoming the limitations of conventional cancer therapy.
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Affiliation(s)
- Raju Vivek
- Proteomics & Molecular Cell Physiology Laboratory, Department of Zoology, Bharathiar University , Coimbatore 641 046, Tamil Nadu, India
| | - Ramar Thangam
- Proteomics & Molecular Cell Physiology Laboratory, Department of Zoology, Bharathiar University , Coimbatore 641 046, Tamil Nadu, India
- King Institute of Preventive Medicine & Research , Guindy, Chennai 600 032, Tamil Nadu, India
| | - Selvaraj Rajesh Kumar
- Department of Nanoscience and Technology, Bharathiar University , Coimbatore 641 046, Tamil Nadu, India
| | - Chandrababu Rejeeth
- Proteomics & Molecular Cell Physiology Laboratory, Department of Zoology, Bharathiar University , Coimbatore 641 046, Tamil Nadu, India
| | | | | | - Savariar Vincent
- Loyola Institute of Frontier Energy (LIFE), Loyola College , Chennai 600 034 Tamil Nadu, India
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Kovendan K, Chandirasekar R, Murugan K, Vincent S. Occupational exposure to organic solvents and welding fumes and risk of Parkinson's disease. Parkinsonism Relat Disord 2016. [DOI: 10.1016/j.parkreldis.2015.10.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abeysekara AU, Archambault S, Archer A, Aune T, Barnacka A, Benbow W, Bird R, Biteau J, Buckley JH, Bugaev V, Cardenzana JV, Cerruti M, Chen X, Christiansen JL, Ciupik L, Connolly MP, Coppi P, Cui W, Dickinson HJ, Dumm J, Eisch JD, Errando M, Falcone A, Feng Q, Finley JP, Fleischhack H, Flinders A, Fortin P, Fortson L, Furniss A, Gillanders GH, Griffin S, Grube J, Gyuk G, Hütten M, Håkansson N, Hanna D, Holder J, Humensky TB, Johnson CA, Kaaret P, Kar P, Kelley-Hoskins N, Khassen Y, Kieda D, Krause M, Krennrich F, Kumar S, Lang MJ, Maier G, McArthur S, McCann A, Meagher K, Moriarty P, Mukherjee R, Nieto D, Bhróithe AOD, Ong RA, Otte AN, Park N, Perkins JS, Petrashyk A, Pohl M, Popkow A, Pueschel E, Quinn J, Ragan K, Ratliff G, Reynolds PT, Richards GT, Roache E, Rousselle J, Santander M, Sembroski GH, Shahinyan K, Smith AW, Staszak D, Telezhinsky I, Todd NW, Tucci JV, Tyler J, Vassiliev VV, Vincent S, Wakely SP, Weiner OM, Weinstein A, Wilhelm A, Williams DA, Zitzer B, Smith PS, Holoien TWS, Prieto JL, Kochanek CS, Stanek KZ, Shappee B, Hovatta T, Max-Moerbeck W, Pearson TJ, Reeves RA, Richards JL, Readhead ACS, Madejski GM, Djorgovski SG, Drake AJ, Graham MJ, Mahabal A. GAMMA-RAYS FROM THE QUASAR PKS 1441+25: STORY OF AN ESCAPE. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/2041-8205/815/2/l22] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Arokiyaraj S, Dinesh Kumar V, Elakya V, Kamala T, Park SK, Ragam M, Saravanan M, Bououdina M, Arasu MV, Kovendan K, Vincent S. Biosynthesized silver nanoparticles using floral extract of Chrysanthemum indicum L.--potential for malaria vector control. Environ Sci Pollut Res Int 2015; 22:9759-9765. [PMID: 25637241 DOI: 10.1007/s11356-015-4148-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 01/19/2015] [Indexed: 06/04/2023]
Abstract
Mosquitoes transmit serious human diseases, causing millions of deaths every year. The use of synthetic insecticides to control vector mosquitoes has caused physiological resistance and adverse environmental effects in addition to high operational cost. Insecticides synthesized of natural products for vector control have been a priority in this area. In the present study, silver nanoparticles (Ag NPs) were green-synthesized using a floral extract of Chrysanthemum indicum screened for larvicidal and pupicidal activity against the first to fourth instar larvae and pupae of the malaria vector Anopheles stephensi mosquitoes. The synthesized Ag NPs were characterized by using UV-vis absorption, X-ray diffraction, transmission electron microscopy, and energy-dispersive X-ray spectroscopy techniques. The textures of the yielded Ag NPs were found to be spherical and polydispersed with a mean size in the range of 25-59 nm. Larvae and pupae were exposed to various concentrations of aqueous extract of C. indicum and synthesized Ag NPs for 24 h, and the maximum mortality was observed from the synthesized Ag NPs against the vector A. stephensi (LC50 = 5.07, 10.35, 14.19, 22.81, and 35.05 ppm; LC90 = 29.18, 47.15, 65.53, 87.96, and 115.05 ppm). These results suggest that the synthesized Ag NPs have the potential to be used as an ideal eco-friendly approach for the control of A. stephensi. Additionally, this study provides the larvicidal and pupicidal properties of green-synthesized Ag NPs with the floral extract of C. indicum against vector mosquito species from the geographical location of India.
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Affiliation(s)
- Selvaraj Arokiyaraj
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang, Republic of Korea
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Murali KS, Sivasubramanian S, Vincent S, Murugan SB, Giridaran B, Dinesh S, Gunasekaran P, Krishnasamy K, Sathishkumar R. Anti-chikungunya activity of luteolin and apigenin rich fraction from Cynodon dactylon. ASIAN PAC J TROP MED 2015; 8:352-8. [PMID: 26003593 DOI: 10.1016/s1995-7645(14)60343-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To obtain luteolin and apigenin rich fraction from the ethanolic extract of Cynodon dactylon (L.) (C. dactylon) Pers and evaluate the fraction's cytotoxicity and anti-Chikungunya potential using Vero cells. METHODS The ethanolic extract of C. dactylon was subjected to silica gel column chromatography to obtain anti-chikungunya virus (CHIKV) fraction. Reverse phase-HPLC and GC-MS studies were carried out to identify the major phytochemicals in the fraction using phytochemical standards. Cytotoxicity and the potential of the fraction against CHIKV were evaluated in vitro using Vero cells. Reduction in viral replication was assessed by reverse transcriptase-polymerase chain reaction (RT-PCR) after treating the viral infected Vero cells with the fraction. RESULTS Reverse Phase-HPLC and GC-MS studies confirmed the presence of flavonoids, luteolin and apigenin as major phytochemicals in the anti-CHIKV ethanolic fraction of C. dactylon. The fraction was found to exhibit potent viral inhibitory activity (about 98%) at the concentration of 50 µg/mL as observed by reduction in cytopathic effect, and the cytotoxic concentration of the fraction was found to be 250 µg/mL. RT-PCR analyses indicated that the reduction in viral mRNA synthesis in fraction treated infected cells was much higher than the viral infected control cells. CONCLUSIONS Luteolin and apigenin rich ethanolic fraction from C. dactylon can be utilized as a potential therapeutic agent against CHIKV infection as the fraction does not show cytotoxicity while inhibiting the virus.
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Affiliation(s)
- Krishnan Saravana Murali
- Plant Genetic Engineering Lab, Department of Biotechnology, Bharathiar University, Coimbatore, Tamilnadu, India; Department of Virology, King Institute of Preventive Medicine and Research, Chennai-600032, Tamilnadu, India
| | - Srinivasan Sivasubramanian
- Centre for Environmental Research and Development and Loyola Institute of Frontier Energy, Loyola College, Chennai-600034, Tamilnadu, India
| | - Savariar Vincent
- Centre for Environmental Research and Development and Loyola Institute of Frontier Energy, Loyola College, Chennai-600034, Tamilnadu, India
| | - Shanmugaraj Bala Murugan
- Plant Genetic Engineering Lab, Department of Biotechnology, Bharathiar University, Coimbatore, Tamilnadu, India
| | - Bupesh Giridaran
- Department of Virology, King Institute of Preventive Medicine and Research, Chennai-600032, Tamilnadu, India
| | - Sundaram Dinesh
- Vellore Institute of Technology, Vellore-632001, Tamilnadu, India
| | - Palani Gunasekaran
- Department of Virology, King Institute of Preventive Medicine and Research, Chennai-600032, Tamilnadu, India
| | - Kaveri Krishnasamy
- Department of Virology, King Institute of Preventive Medicine and Research, Chennai-600032, Tamilnadu, India
| | - Ramalingam Sathishkumar
- Plant Genetic Engineering Lab, Department of Biotechnology, Bharathiar University, Coimbatore, Tamilnadu, India.
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Girard F, Meillot E, Vincent S, Bianchi L, Caltagirone JP. Mechanisms of heat transfer between a droplet and a plasma jet in Suspension Plasma Spraying. ACTA ACUST UNITED AC 2014. [DOI: 10.1088/1742-6596/550/1/012022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Meetze K, Vincent S, Tyler S, Mazsa E, Delpero A, Bottega S, McIntosh D, Gyuris J, Weng Z. 374 Neuregulin 1 (NRG1) expression is a predictive biomarker for response to AV-203, an ERBB3 inhibitory antibody, in human tumor models. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70500-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kroiss A, Vincent S, Decaussin-Petrucci M, Meugnier E, Viallet J, Ruffion A, Chalmel F, Samarut J, Allioli N. Androgen-regulated microRNA-135a decreases prostate cancer cell migration and invasion through downregulating ROCK1 and ROCK2. Oncogene 2014; 34:2846-55. [PMID: 25065599 DOI: 10.1038/onc.2014.222] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 06/12/2014] [Accepted: 06/15/2014] [Indexed: 12/20/2022]
Abstract
Androgen signaling, via the androgen receptor (AR), is crucial in mediating prostate cancer (PCa) initiation and progression. Identifying new downstream effectors of the androgens/AR pathway will allow a better understanding of these mechanisms and could reveal novel biomarkers and/or therapeutic agents to improve the rate of patient survival. We compared the microRNA expression profiles in androgen-sensitive LNCaP cells stimulated or not with 1 nM R1881 by performing a high-throughput reverse transcriptase-quantitative PCR and found that miR-135a was upregulated. After androgen stimulation, we showed that AR directly activates the transcription of miR-135a2 gene by binding to an androgen response element in the promoter region. Our findings identify miR-135a as a novel effector in androgens/AR signaling. Using xenograft experiments in chick embryos and adult male mice, we showed that miR-135a overexpression decreases in vivo invasion abilities of prostate PC-3 cells. Through in vitro wound-healing migration and invasion assays, we demonstrated that this effect is mediated through downregulating ROCK1 and ROCK2 expression, two genes that we characterized as miR-135a direct target genes. In human surgical samples from prostatectomy, we observed that miR-135a expression was lower in tumoral compared with paired adjacent normal tissues, mainly in tumors classified with a high Gleason score (⩾8). Moreover, miR-135a expression is lower in invasive tumors, showing extraprostatic extension, as compared with intraprostatic localized tumors. In tumor relative to normal glands, we also showed a more frequently higher ROCK1 protein expression determined using a semi-quantitative immunohistochemistry analysis. Therefore, in tumor cells, the lower miR-135a expression could lead to a higher ROCK1 protein expression, which could explain their invasion abilities. The highlighted relationship between miR-135a expression level and the degree of disease aggressiveness suggests that miR-135a may be considered as a prognostic marker in human PCa.
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Affiliation(s)
- A Kroiss
- Université de Lyon, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Institut de Génomique Fonctionnelle de Lyon (IGFL), Lyon, France
| | - S Vincent
- Université de Lyon, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Institut de Génomique Fonctionnelle de Lyon (IGFL), Lyon, France
| | - M Decaussin-Petrucci
- 1] Université de Lyon, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Institut de Génomique Fonctionnelle de Lyon (IGFL), Lyon, France [2] Faculté de Médecine et de Maïeutique Lyon-Sud-Charles Mérieux, Université Claude Bernard Lyon 1, Pierre-Bénite, France [3] Service d'Anatomie et de Cytologie Pathologiques, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - E Meugnier
- Laboratoire CarMen, INSERM U1060, INRA1362, Université Claude Bernard Lyon 1, Faculté de Médecine et de Maïeutique Lyon-Sud-Charles Mérieux, Oullins, France
| | - J Viallet
- In Ovo, Institut Albert Bonniot, CRI INSERM/UJF U823, Université de Grenoble, La Tronche Cedex, France
| | - A Ruffion
- 1] Université de Lyon, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Institut de Génomique Fonctionnelle de Lyon (IGFL), Lyon, France [2] Faculté de Médecine et de Maïeutique Lyon-Sud-Charles Mérieux, Université Claude Bernard Lyon 1, Pierre-Bénite, France [3] Service d'Urologie, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - F Chalmel
- GERHM, INSERM U1085-Irset, Université Rennes 1, Rennes, France
| | - J Samarut
- 1] Université de Lyon, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Institut de Génomique Fonctionnelle de Lyon (IGFL), Lyon, France [2] Faculté de Médecine et de Maïeutique Lyon-Sud-Charles Mérieux, Université Claude Bernard Lyon 1, Pierre-Bénite, France [3] Service de Biochimie Biologie Moleculaire Sud, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - N Allioli
- 1] Université de Lyon, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Institut de Génomique Fonctionnelle de Lyon (IGFL), Lyon, France [2] Institut des Sciences Pharmaceutiques et Biologiques (ISPB)-Faculté de Pharmacie de Lyon, Université Claude Bernard Lyon 1, Lyon, France
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Anitha C, Kabilan S, Rajinish N, Kumar AS, Krishnan P, Rasikan I, Senthilkumar S, Vincent S, Senthamarai S, Sivasankari S, Gunasekaran P, Sikhamani R, Pushkala M. Molecular characterization of Pseudomonas sp. isolated from lower respiratory tract infection in HIV and non-HIV population by 16S rDNA and ARDRA. BMC Infect Dis 2014. [PMCID: PMC4080358 DOI: 10.1186/1471-2334-14-s3-p17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Malardé L, Gratas-Delamarche A, Le Douairon-Lahaye S, Zguira MS, Vincent S, Lemoine-Morel S, Groussard C. Endurance training and insulin therapy need to be associated to fully exert their respective beneficial effects on oxidant stress and glycemic regulation in diabetic rats. Free Radic Res 2014; 48:412-9. [DOI: 10.3109/10715762.2014.880428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Arokiyaraj S, Arasu MV, Vincent S, Prakash NU, Choi SH, Oh YK, Choi KC, Kim KH. Rapid green synthesis of silver nanoparticles from Chrysanthemum indicum L and its antibacterial and cytotoxic effects: an in vitro study. Int J Nanomedicine 2014; 9:379-88. [PMID: 24426782 PMCID: PMC3890422 DOI: 10.2147/ijn.s53546] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [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] [Indexed: 01/21/2023] Open
Abstract
The present work reports a simple, cost-effective, and ecofriendly method for the synthesis of silver nanoparticles (AgNPs) using Chrysanthemum indicum and its antibacterial and cytotoxic effects. The formation of AgNPs was confirmed by color change, and it was further characterized by ultraviolet-visible spectroscopy (435 nm). The phytochemical screening of C. indicum revealed the presence of flavonoids, terpenoids, and glycosides, suggesting that these compounds act as reducing and stabilizing agents. The crystalline nature of the synthesized particles was confirmed by X-ray diffraction, as they exhibited face-centered cubic symmetry. The size and morphology of the particles were characterized by transmission electron microscopy, which showed spherical shapes and sizes that ranged between 37.71-71.99 nm. Energy-dispersive X-ray spectroscopy documented the presence of silver. The antimicrobial effect of the synthesized AgNPs revealed a significant effect against the bacteria Klebsiella pneumonia, Escherichia coli, and Pseudomonas aeruginosa. Additionally, cytotoxic assays showed no toxicity of AgNPs toward 3T3 mouse embryo fibroblast cells (25 μg/mL); hence, these particles were safe to use.
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Affiliation(s)
- Selvaraj Arokiyaraj
- Department of Animal Nutrition and Physiology, National Institute of Animal Science, Rural Development Administration, Suwon, Republic of Korea
| | - Mariadhas Valan Arasu
- Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Seonghwan-Eup, Cheonan-Si, Chungnam, Republic of Korea
| | - Savariar Vincent
- Center for Environmental Research and Development, Loyola College, Chennai, India
| | | | - Seong Ho Choi
- Department of Animal Science, Chungbuk National University, Chungbuk, Republic of Korea
| | - Young-Kyoon Oh
- Department of Animal Nutrition and Physiology, National Institute of Animal Science, Rural Development Administration, Suwon, Republic of Korea
| | - Ki Choon Choi
- Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Seonghwan-Eup, Cheonan-Si, Chungnam, Republic of Korea
| | - Kyoung Hoon Kim
- Department of Animal Nutrition and Physiology, National Institute of Animal Science, Rural Development Administration, Suwon, Republic of Korea ; Department of Animal Science, Seoul National University, Pyeongchang, Republic of Korea
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Kovendan K, Shanthakumar SP, Praseeja C, Kumar PM, Murugan K, Vincent S. Mosquitocidal properties of Morinda citrifolia L. (Noni) (Family: Rubiaceae) leaf extract and Metarhizium anisopliae against malaria vector, Anopheles stephensi Liston. (Diptera: Culicidae). Asian Pacific Journal of Tropical Disease 2014. [DOI: 10.1016/s2222-1808(14)60435-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Malardé L, Rebillard A, Le Douairon-Lahaye S, Vincent S, Zguira MS, Lemoine-Morel S, Gratas-Delamarche A, Groussard C. Superoxide production pathways in aortas of diabetic rats: beneficial effects of insulin therapy and endurance training. Mol Cell Biochem 2013; 389:113-8. [PMID: 24374791 DOI: 10.1007/s11010-013-1932-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 12/18/2013] [Indexed: 12/31/2022]
Abstract
Superoxide (O 2 (·-) ) overproduction, by decreasing the nitric oxide ((·)NO) bioavailability, contributes to vascular complications in type 1 diabetes. In this disease, the vascular O 2 (·-) can be produced by the NADPH oxidase (NOX), nitric oxide synthase (NOS), and xanthine oxidase (XO). This study aimed to determine the contribution of each enzymatic pathway in hyperglycemia-induced O 2 (·-) overproduction, and the effects of an endurance training program and insulin therapy, associated or not, on the O 2 (·-) production (amount and related enzymes) in diabetic rats. Forty male Wistar rats were divided into diabetic (D), diabetic treated with insulin (D-Ins), diabetic trained (D-Tr), or diabetic insulin-treated and trained (D-Ins + Tr) groups. An additional healthy group was used as control. Insulin therapy (Glargine Lantus, Sanofi) and endurance training (treadmill run: 60 min/day, 25 m/min, 5 days/week) started 1 week after diabetes induction by streptozotocin (45 mg/kg), and lasted for 8 weeks. At the end of the protocol, the O 2 (·-) production in aorta rings was evaluated by histochemical analyses (DHE staining). Each production pathway was studied by inhibiting NOX (apocynin), NOS (L-Name), or XO (allopurinol) before DHE staining. Diabetic rats exhibited hyperglycemia-induced O 2 (·-) overproduction, resulting from NOX, NOS, and XO activation. Insulin therapy and endurance training, associated or not, decreased efficiently and similarly the O 2 (·-) overproduction. Insulin therapy reduced the hyperglycemia and decreased the three enzymatic pathways implicated in the O 2 (·-) production. Endurance training decreased directly the NOS and XO activity. While both therapeutic strategies activated different pathways, their association did not reduce the O 2 (·-) overproduction more significantly.
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Affiliation(s)
- L Malardé
- Laboratoire M2S, Université Rennes 2 - ENS Cachan, Avenue Robert Schuman, 35170, Bruz, France,
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Abstract
Epidemiological data indicate that physical inactivity, a main factor of global energetic imbalance, is involved in the worldwide epidemic of obesity and metabolic disorders such as insulin resistance. Although the complex pathogenesis of insulin resistance is not fully understood, literature data accumulated during the past decades clearly indicate that the activation of the oxidative-inflammatory loop plays a major role. By activating the oxidative-inflammatory loop in insulin-sensitive tissues, fat gain and adipose tissue dysfunction likely contribute to induce insulin resistance during chronic and prolonged physical inactivity. However, in the past years, evidence has emerged showing that early insulin resistance also occurs after very short-term exposure to physical inactivity (1-7 days) without any fat gain or energetic imbalance. The possible role of liver disturbances or endothelial dysfunction is suggested, but further studies are necessary to really conclude. Inactive skeletal muscle probably constitutes the primary triggering tissue for the development of early insulin resistance. In the present review, we discuss on the current knowledge about the effect of physical inactivity on whole-body and peripheral insulin sensitivity, and how local inflammation and oxidative stress arising with physical inactivity could potentially induce insulin resistance. We assume that early muscle insulin resistance allows the excess nutrients to shift in the storage tissues to withstand starvation through energy storage. We also consider when chronic and prolonged, physical inactivity over an extended period of time is an underestimated contributor to pathological insulin resistance and hence indirectly to numerous chronic diseases.
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Affiliation(s)
- A Gratas-Delamarche
- University Rennes 2 - ENS Cachan - Antenne de Bretagne, Laboratory "Movement, Sport and Health Sciences" (M2S) , Rennes , France
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Goanvec C, Blat S, Vincent S, Pichon L, Poupon G, Feray A, Guerrero F, Mansourati J. The effect of food-derived bioactives peptides on myocardial function in swine after detraining, with and without high fat diet. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Affiliation(s)
- G. Simpson
- Department of Thoracic Medicine; Cairns Base Hospital; Cairns; Queensland; Australia
| | - S. Vincent
- Department of Thoracic Medicine; Cairns Base Hospital; Cairns; Queensland; Australia
| | - J. Ferns
- Department of Thoracic Medicine; Cairns Base Hospital; Cairns; Queensland; Australia
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Vincent S, Turque N, Plaza S, Dhellemmes P, Hladky J, Assaker R, Ruchoux M, Saule S. Differential expression between PAX-6 and EN proteins in medulloblastoma. Int J Oncol 2012; 8:901-10. [PMID: 21544444 DOI: 10.3892/ijo.8.5.901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A collection of 28 medulloblastomas was analyzed for expression of the developmental control genes PAX-6 and EN by immunohistochemical staining. Sixteen medulloblastomas expressed both EN and PAX-6 but, when differentiation could be assessed in the positive areas, PAX-6 is expressed in the less differentiated cells. Since Drosophila en encodes a negative regulator, we overexpressed the chicken en-1 in retinal pigmented epithelium cells. This resulted in Pax-6 down regulation. These results suggest a regulatory loop between PAX-6 and EN, two molecular markers of medulloblastoma.
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Affiliation(s)
- S Vincent
- CHRU LILLE,DEPT NEUROSURG,F-59037 LILLE,FRANCE. CHRU LILLE,DEPT NEUROPATHOL,F-59037 LILLE,FRANCE. INST PASTEUR,CNRS,EP56,LAB DIFFERENCIAT CELLULAIRE & MOL,F-59019 LILLE,FRANCE
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41
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Carol D, Karpagam S, Kingsley SJ, Vincent S. Synergistic effect of calcium stearate and photo treatment on the rate of biodegradation of low density polyethylene spent saline vials. Indian J Exp Biol 2012; 50:497-501. [PMID: 22822530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The biodegradation of spent saline bottles, a low density polyethylene product (LDPE) by two selected Arthrobacter sp. under in vitro conditions is reported. Chemical and UV pretreatment play a vital role in enhancing the rate of biodegradation. Treated LDPE film exhibits a higher weight loss and density when compared to untreated films. Arthrobacter oxydans and Arthrobacter globiformis grew better in medium containing pretreated film than in medium containing untreated film. The decrease in density and weight loss of LDPE was also more for pretreated film when compared to untreated film indicating the affect of abiotic treatment on mechanical properties of LDPE. The decrease in the absorbance corresponding to carbonyl groups and double bonds that were generated during pretreatment suggest that some of the double bonds were cut by Arthrobacter species. Since Arthrobacter sp. are capable of degrading urea, splitting of urea group were also seen in FTIR spectrum indicating the evidence of biodegradation after microbial incubation. The results indicated that biodegradation rate could be enhanced by exposing LDPE to calcium stearate (a pro-oxidant) which acts as an initiator for the oxidation of the polymers leading to a decrease of molecular weight and formation of hydrophilic group. Therefore, the initial step for biodegradation of many inert polymers depends on a photo-oxidation of those polymers. The application in sufficient details with improved procedures utilizing recombinant microorganism with polymer degradation capacity can lead to a better plastic waste management in biomedical field. The present plastic disposal trend of waste accumulation can be minimized with this promising eco-friendly technique.
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Affiliation(s)
- D Carol
- Department of Plant Biology and Biotechnology, Loyola College Chennai 600 034, India.
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Kovendan K, Murugan K, Shanthakumar SP, Vincent S, Hwang JS. Larvicidal activity of Morinda citrifolia L. (Noni) (Family: Rubiaceae) leaf extract against Anopheles stephensi, Culex quinquefasciatus, and Aedes aegypti. Parasitol Res 2012; 111:1481-90. [PMID: 22740293 DOI: 10.1007/s00436-012-2984-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Accepted: 05/21/2012] [Indexed: 11/30/2022]
Abstract
Morinda citrifolia leaf extract was tested for larvicidal activity against three medically important mosquito vectors such as malarial vector Anopheles stephensi, dengue vector Aedes aegypti, and filarial vector Culex quinquefasciatus. The plant material was shade dried at room temperature and powdered coarsely. From the leaf, 1-kg powder was macerated with 3.0 L of hexane, chloroform, acetone, methanol, and water sequentially for a period of 72 h each and filtered. The yield of extracts was hexane (13.56 g), chloroform (15.21 g), acetone (12.85 g), methanol (14.76 g), and water (12.92 g), respectively. The extracts were concentrated at reduced temperature on a rotary vacuum evaporator and stored at a temperature of 4°C. The M. citrifolia leaf extract at 200, 300, 400, 500, and 600 ppm caused a significant mortality of three mosquito species. Hexane, chloroform, acetone, and water caused moderate considerable mortality; however, the highest larval mortality was methanolic extract, observed in three mosquito vectors. The larval mortality was observed after 24-h exposure. No mortality was observed in the control. The third larvae of Anopheles stephensi had values of LC(50) = 345.10, 324.26, 299.97, 261.96, and 284.59 ppm and LC(90) = 653.00, 626.58, 571.89, 505.06, and 549.51 ppm, respectively. The Aedes aegypti had values of LC(50) = 361.75, 343.22, 315.40, 277.92, and 306.98 ppm and LC(90) = 687.39, 659.02, 611.35, 568.18, and 613.25 ppm, respectively. The Culex quinquefasciatus had values of LC(50) = 382.96, 369.85, 344.34, 330.42, and 324.64 ppm and LC(90) = 726.18, 706.57, 669.28, 619.63, and 644.47 ppm, respectively. The results of the leaf extract of M. citrifolia are promising as good larvicidal activity against the mosquito vector Anopheles stephensi, Aedes aegypti, and Culex quinquefasciatus. This is a new eco-friendly approach for the control of vector control programs. Therefore, this study provides first report on the larvicidal activities against three species of mosquito vectors of this plant extracts from India.
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Affiliation(s)
- Kalimuthu Kovendan
- Division of Entomology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India.
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Kovendan K, Arivoli S, Maheshwaran R, Baskar K, Vincent S. Larvicidal efficacy of Sphaeranthus indicus, Cleistanthus collinus and Murraya koenigii leaf extracts against filarial vector, Culex quinquefasciatus Say (Diptera: Culicidae). Parasitol Res 2012; 111:1025-35. [DOI: 10.1007/s00436-012-2927-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Accepted: 04/10/2012] [Indexed: 12/22/2022]
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Crackower M, Moy L, Jia Y, Yu H, Vincent S, Miller J, Lieber G, Fernandez X, Caniga M, Gil M, Wilhelm A, Houshyar H, Northrup A, Chapman R, Abraham W, Kelly N, Hickey E, Miller T. Characterization of a Novel, Potent and Selective Small Molecule Spleen Tyrosine Kinase (SYK) Inhibitor in In Vitro and In Vivo Models of Asthma. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Manimaran A, Cruz MMJJ, Muthu C, Vincent S, Ignacimuthu S. Larvicidal and knockdown effects of some essential oils against <i>Culex quinquefasciatus</i> Say, <i>Aedes aegypti</i> (L.) and <i>Anopheles stephensi</i> (Liston). ACTA ACUST UNITED AC 2012. [DOI: 10.4236/abb.2012.37106] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kovendan K, Murugan K, Panneerselvam C, Aarthi N, Kumar PM, Subramaniam J, Amerasan D, Kalimuthu K, Vincent S. Antimalarial activity of Carica papaya (Family: Caricaceae) leaf extract against Plasmodium falciparum. Asian Pacific Journal of Tropical Disease 2012. [DOI: 10.1016/s2222-1808(12)60171-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kovendan K, Murugan K, Shanthakumar S, Vincent S. Evaluation of larvicidal and pupicidal activity of Morinda citrifolia L. (Noni) (Family: Rubiaceae) against three mosquito vectors. Asian Pacific Journal of Tropical Disease 2012. [DOI: 10.1016/s2222-1808(12)60182-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Murugan K, Kovendan K, Vincent S, Barnard DR. Biolarvicidal and pupicidal activity of Acalypha alnifolia Klein ex Willd. (Family: Euphorbiaceae) leaf extract and Microbial insecticide, Metarhizium anisopliae (Metsch.) against malaria fever mosquito, Anopheles stephensi Liston. (Diptera: Culicidae). Parasitol Res 2011; 110:2263-70. [PMID: 22200954 DOI: 10.1007/s00436-011-2758-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2011] [Accepted: 12/05/2011] [Indexed: 12/21/2022]
Abstract
The present study was to establish of Acalypha alnifolia leaf extract and microbial insecticide, Metarizhium anisopliae on larvicidal and pupicidal properties of against the malaria fever mosquito, Anopheles stephensi. The leaf extract showed larvicidal and pupicidal effects after 24 h of exposure; however, the highest larval and pupal mortality was found in the leaf extract of ethanol A. alnifolia against the 1st to 4th instar larvae and pupae of values LC(50) value of 1st instar was 5.388%, 2nd instar was 6.233%, 3rd instar was 6.884%, 4th instar was 8.594%, and pupae was 10.073%, respectively, and microbial insecticide, M. anisopliae against the 1st to 4th instar larvae and pupae of values LC(50) value of 1st instar was 7.917%, 2nd instar was 10.734%, 3rd instar was 17.624%, 4th instar was 26.590%, and pupae was 37.908%, respectively. Moreover, combined treatment of values of LC(50) value of 1st instar was 3.557%, 2nd instar was 4.373%, 3rd instar was 5.559%, 4th instar was 7.223%, and pupae was 8.542%, respectively. No mortality was observed in the control. The results that the leaves extract of A. alnifolia and microbial insecticide, M. anisopliae is promising as good larvicidal and pupicidal properties of against malaria fever mosquito, A. stephensi. This is an ideal eco-friendly approach for the control of malarial vector, A. stephensi as a vector control programs. Therefore, this study provides first report on the combined effect of mosquitocidal efficacy of this plant extract and fungal pathogen of M. anisopliae against A. stephensi from Southern India.
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Affiliation(s)
- Kadarkarai Murugan
- Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
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Kovendan K, Murugan K, Panneerselvam C, Mahesh Kumar P, Amerasan D, Subramaniam J, Vincent S, Barnard DR. Laboratory and field evaluation of medicinal plant extracts against filarial vector, Culex quinquefasciatus Say (Diptera: Culicidae). Parasitol Res 2011; 110:2105-15. [PMID: 22146997 DOI: 10.1007/s00436-011-2736-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2011] [Accepted: 11/24/2011] [Indexed: 12/21/2022]
Abstract
The present study explored the effects of Jatropha curcas, Hyptis suaveolens, Abutilon indicum, and Leucas aspera tested against third instar larvae of filarial vector, Culex quinquefasciatus. The dried plant materials were powdered by an electrical blender. From each sample, 500 g powder was macerated with 1.5 L of hexane, chloroform, ethyl acetate, and methanol 8h, using Soxhlet apparatus, and filtered. The extracts were concentrated at reduced temperature on a rotary evaporator and stored at a temperature of 4°C. The yield of crude extract was 11.4, 12.2, 10.6, and 13.5 g in hexane, chloroform, ethyl acetate, and methanol, respectively. The hexane, chloroform, ethyl acetate, and methanol extract of J. curcas with LC(50) values of 230.32, 212.85, 192.07, and 113.23 ppm; H. suaveolens with LC(50) values of 213.09, 217.64, 167.59, and 86.93 ppm; A. indicum with LC(50) values of 204.18, 155.53, 166.32, and 111.58 ppm; and L. aspera with LC(50) values of 152.18, 118.29, 111.43, and 107.73 ppm, respectively, against third instar larvae of C. quinquefasciatus. The larval mortality was observed after 24 h of exposure. Maximum larvicidal activity was observed in the methanolic extract followed by ethyl acetate, chloroform, and hexane extract. No mortality was observed in the control. The observed mortality were statistically significant at P < 0.05 level. L. aspera showed the highest mortality rate against the mosquito larvae in laboratory and field. The larval density was decreased after the treatment of plant extracts at the breeding sites (sewage water), and hence, these plant extracts of the suitable alternatives of synthetic insecticides for the mosquito vector management. The present results suggest that the medicinal plants extract was an excellent potential for controlling filarial vector, C. quinquefasciatus.
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Affiliation(s)
- Kalimuthu Kovendan
- Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India.
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