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Sanaul Islam M, Hoque A, Mohamed Yusuf Baig K, Sarmin M, Kole GK, Hoda M, Akhtarul Alam M. A zwitterionic probe for ratiometric fluorescent detection of aluminium(III) ion in aqueous medium and its application in bioimaging. Spectrochim Acta A Mol Biomol Spectrosc 2024; 311:124005. [PMID: 38341932 DOI: 10.1016/j.saa.2024.124005] [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: 10/09/2023] [Revised: 12/12/2023] [Accepted: 02/05/2024] [Indexed: 02/13/2024]
Abstract
In the present study, we have synthesized an aminobenzoic acid containing Schiff base (compound 1) and its structure was confirmed through single crystal X-ray study. Importantly, the compound 1 crystallizes in the zwitterionic form, with an anionic carboxylate group (-COO-) and a cationic iminium group (-C = NH+-). The compound 1 is highly soluble in water due to its zwitterionic feature in the solid state. Interestingly, compound 1 acts as a ratiometric fluorescent probe for the selective detection of Al3+ ion in aqueous solution without organic cosolvent. It can also detect Al3+ ion by visual colour change to bluish-green fluorescence under 365 nm UV light. The association constant between compound 1 with Al3+ ion was estimated to be 1.67 × 104 M-1. The lowest detection limit for Al3+ ion was calculated to be 7.05 × 10-8 M in water. Compound 1 in combination with Al3+ ion demonstrated fluorescent imaging potential of the nucleus of in RAW 264.7 murine macrophage cell line. In addition, the sensing model is developed as paper based sensor ''Test Kit' 'for its practical applicability.
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Affiliation(s)
- Md Sanaul Islam
- Department of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata 700160, India
| | - Anamika Hoque
- Department of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata 700160, India
| | - K Mohamed Yusuf Baig
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Monalisha Sarmin
- Nanotechnology and Applied Phytochemistry Laboratory, Department of Biological Sciences, Aliah University, Action Area IIA/27, New Town, Kolkata 700160, India
| | - Goutam Kumar Kole
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India.
| | - Muddasarul Hoda
- Nanotechnology and Applied Phytochemistry Laboratory, Department of Biological Sciences, Aliah University, Action Area IIA/27, New Town, Kolkata 700160, India.
| | - Md Akhtarul Alam
- Department of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata 700160, India.
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Poornima K, Francis AP, Hoda M, Eladl MA, Subramanian S, Veeraraghavan VP, El-Sherbiny M, Asseri SM, Hussamuldin ABA, Surapaneni KM, Mony U, Rajagopalan R. Implications of Three-Dimensional Cell Culture in Cancer Therapeutic Research. Front Oncol 2022; 12:891673. [PMID: 35646714 PMCID: PMC9133474 DOI: 10.3389/fonc.2022.891673] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 03/08/2022] [Accepted: 04/11/2022] [Indexed: 12/12/2022] Open
Abstract
Replicating the naturalistic biomechanical milieu of cells is a primary requisite to uncover the fundamental life processes. The native milieu is significantly not replicated in the two-dimensional (2D) cell cultures. Alternatively, the current three-dimensional (3D) culture techniques can replicate the properties of extracellular matrix (ECM), though the recreation of the original microenvironment is challenging. The organization of cells in a 3D manner contributes to better insight about the tumorigenesis mechanism of the in vitro cancer models. Gene expression studies are susceptible to alterations in their microenvironment. Physiological interactions among neighboring cells also contribute to gene expression, which is highly replicable with minor modifications in 3D cultures. 3D cell culture provides a useful platform for identifying the biological characteristics of tumor cells, particularly in the drug sensitivity area of translational medicine. It promises to be a bridge between traditional 2D culture and animal experiments and is of great importance for further research in tumor biology. The new imaging technology and the implementation of standard protocols can address the barriers interfering with the live cell observation in a natural 3D physiological environment.
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Affiliation(s)
- Kolluri Poornima
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Pondicherry, India
| | - Arul Prakash Francis
- Centre of Molecular Medicine and Diagnostics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Muddasarul Hoda
- Department of Biological Sciences, Aliah University, Kolkata, India
| | - Mohamed Ahmed Eladl
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Srividya Subramanian
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Pondicherry, India
| | - Vishnu Priya Veeraraghavan
- Centre of Molecular Medicine and Diagnostics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Mohamed El-Sherbiny
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
| | - Saad Mohamed Asseri
- Department of Clinical Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
| | | | - Krishna Mohan Surapaneni
- Departments of Biochemistry, Molecular Virology, Research, Clinical Skills, and Simulation, Panimalar Medical College Hospital and Research Institute, Chennai, India
| | - Ullas Mony
- Centre of Molecular Medicine and Diagnostics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Rukkumani Rajagopalan
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Pondicherry, India
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Perris A, Bhattacharya S, Jawed JJ, Hoda M. Oncotherapeutic Application of Resveratrol-based Inorganic Nanoparticles. Pharm Nanotechnol 2021; 9:271-280. [PMID: 34488608 DOI: 10.2174/2211738509666210906164727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/30/2021] [Accepted: 07/09/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Potential therapeutic benefits of natural phytoconstituents and the emergence of nano-structured drug delivery systems have expanded the scope of enhanced chemotherapy with minimal adverse effects. Various in vivo and in vitro studies have revealed Resveratrol to be a potent anti-carcinogenic agent. Researchers are currently applying the concept of nano-science for enhancing the delivery of phyto-drugs like resveratrol, in order to carry the drug to the affected tissues and organs of cancer patients with much ease and efficiency. METHODS The current review emphasizes the use of inorganic nanoparticles for enhancing the delivery and efficacy of resveratrol into otherwise inaccessible tumorigenic tissues. CONCLUSION The present review work summarizes a comprehensive update on the mechanism of actions of the resveratrol-based inorganic nanocomposite particles that are currently being studied against various cancer models. This work may be significant in laying the foundation for the future of metallic nanoparticles-based delivery and efficacy of phytochemicals in general and resveratrol in specific against non-invasive metastatic cancer.
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Affiliation(s)
- Angela Perris
- Department of Microbiology, St. Xavier\'s College, 30 Mother Teresa Sarani Kolkata 700016, West Bengal, India
| | - Sanchari Bhattacharya
- Guru Nanak Institute of Pharmaceutical Sciences and Technology, 157/F Nilgunj Road, Panihati, Kolkata-700114, India
| | - Junaid Jibran Jawed
- School of Biotechnology, Presidency University 2nd Campus, Kolkata- 700156, India
| | - Muddasarul Hoda
- Department of Biological Sciences, Aliah University, Kolkata-700160, India
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Hoda M. Potential Alternatives to Conventional Cancer Therapeutic Approaches: The Way Forward. Curr Pharm Biotechnol 2021; 22:1141-1148. [PMID: 33069195 DOI: 10.2174/1389201021666201016142408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/31/2020] [Accepted: 09/24/2020] [Indexed: 11/22/2022]
Abstract
onventional cancer therapeutic approaches broadly include chemotherapy, radiation therapy and surgery. These established approaches have evolved over several decades of clinical experience. For a complex disease like cancer, satisfactory treatment remains an enigma for the simple fact that the causal factors for cancer are extremely diverse. In order to overcome existing therapeutic limitations, consistent scientific endeavors have evolved several potential therapeutic approaches, majority of which focuses essentially on targeted drug delivery, minimal concomitant ramification, and selective high cytotoxicity. The current review focuses on highlighting some of these potential alternatives that are currently in various stages of in vitro, in vivo, and clinical trials. These include physical, chemical and biological entities that are avidly being explored for therapeutic alternatives. Some of these entities include suicide gene, micro RNA, modulatory peptides, ultrasonic waves, free radicals, nanoparticles, phytochemicals, and gene knockout, and stem cells. Each of these techniques may be exploited exclusively and in combination with conventional therapeutic approaches thereby enhancing the therapeutic efficacy of the treatment. The review intends to briefly discuss the mechanism of action, pros, and cons of potential alternatives to conventional therapeutic approaches.
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Affiliation(s)
- Muddasarul Hoda
- Department of Biological Sciences, Aliah University, IIA/27-Newtown, Kolkata 700160, India
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Sufi SA, Hoda M, Pajaniradje S, Mukherjee V, Coumar SM, Rajagopalan R. Enhanced drug retention, sustained release, and anti-cancer potential of curcumin and indole-curcumin analog-loaded polysorbate 80-stabilizied PLGA nanoparticles in colon cancer cell line SW480. Int J Pharm 2020; 588:119738. [DOI: 10.1016/j.ijpharm.2020.119738] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 12/18/2022]
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Ahmad I, Hoda M. Molecular mechanisms of action of resveratrol in modulation of diabetic and non-diabetic cardiomyopathy. Pharmacol Res 2020; 161:105112. [PMID: 32758636 DOI: 10.1016/j.phrs.2020.105112] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 07/22/2020] [Accepted: 07/22/2020] [Indexed: 12/18/2022]
Abstract
Cardiomyopathy is among the major clinical manifestations of heart diseases that triggers malfunctioning of the cardiovascular system. Some of the major causal factors of cardiomyopathy includes myocardial ischemia, drug-toxicity, genetic aberrations, abnormal depositions of essential elements, and redox imbalance. Diabetes, being the major comorbid of cardiovascular diseases and vice versa, further contributes to the progression of cardiomyopathy. The molecular mechanisms of action suggest that oxidative stress is among the primary factors that triggers cascading impact on cardiomyopathy. Resveratrol, a phenolic antioxidant, has the potential to quench the excessive free radicals. It is a potent antioxidant supplement that may as well be a therapeutic molecule. The review focuses on the various molecular mechanisms of action that resveratrol potentiates in reversing or attenuating the progress of diabetic and non-diabetic cardiomyopathy triggered by wide range of factors. Additionally, resveratrol also tends to preserve the healthy heart from potential damage that may be triggered by oxidative stress.
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Affiliation(s)
- Irshad Ahmad
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Muddasarul Hoda
- Department of Biological Sciences, Aliah University, IIA/27, Newtown, Kolkata, 700160, India.
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Hoque M, Ali S, Hoda M. Current status of G-protein coupled receptors as potential targets against type 2 diabetes mellitus. Int J Biol Macromol 2018; 118:2237-2244. [DOI: 10.1016/j.ijbiomac.2018.07.091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 06/09/2018] [Accepted: 07/14/2018] [Indexed: 12/15/2022]
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Shakya G, Balasubramanian S, Hoda M, Rajagopalan R. Inhibition of metastasis and angiogenesis in Hep-2 cells by wheatgrass extract - an in vitro and in silico approach. Toxicol Mech Methods 2017; 28:205-218. [PMID: 29160133 DOI: 10.1080/15376516.2017.1388460] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 01/17/2023]
Abstract
Metastasis is the major hindrance in the treatment of all cancers, including laryngeal squamous cell carcinoma. Intensive researches are under way to identify the effective natural polyphenols with anti-metastatic ability for cancer treatment. Wheatgrass, an herbal plant has been reported to show anticancer effects. Hence, in this study, we aimed to analyze the anti-metastatic effect of methanol extract of wheatgrass (MEWG). The levels of metastatic marker proteins were determined by western blot. PI3K and AKT levels were determined by real time (RT)-PCR analysis. In silico molecular docking was done to check the interaction of the 14 components (identified by HPLC/GCMS) of MEWG with PI3K and AKT. MEWG effectively decreased the metastatic protein expressions, namely VEGF, MMP-9 and COX-2 and increased TIMP-2. RT-PCR results showed reduced m-RNA levels of both PI3K and AKT when compared to control. Molecular docking studies revealed interaction of most of the identified compounds of the extract with the important residues of PI3K and AKT. These findings indicate that MEWG inhibits metastasis and angiogenesis in Hep-2 cells possibly via PI3K/AKT due to the cumulative effect of polyphenols and other constituent present in extract. The compounds of the extract were also found to be directly involved in inhibition of AKT/PI3K, thus could help to restrain metastasis.
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Affiliation(s)
- Garima Shakya
- a Department of Biochemistry and Molecular Biology, School of Life Sciences , Pondicherry University , Kalapet , Puducherry , India
| | - Sangeetha Balasubramanian
- b Centre for Bioinformatics, School of Life Sciences , Pondicherry University , Kalapet , Puducherry , India
| | - Muddasarul Hoda
- a Department of Biochemistry and Molecular Biology, School of Life Sciences , Pondicherry University , Kalapet , Puducherry , India
| | - Rukkumani Rajagopalan
- a Department of Biochemistry and Molecular Biology, School of Life Sciences , Pondicherry University , Kalapet , Puducherry , India
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Gerstmayr J, Lang E, Falch D, Pirker C, Laszlo V, Dome B, Klepetko W, Hoda M, Berger W, Grusch M. MA 19.07 Does Loss of Smad7 Lead to Increased Aggressiveness of Malignant Pleural Mesothelioma? J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.639] [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: 11/29/2022]
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Brcic L, Jakopovic M, Kern I, Mohorcic K, Seiwerth S, Grusch M, Rajer M, Buder A, Klikovits T, Laszlo V, Dome B, Hegedus B, Klepetko W, Kolek V, Pirker R, Hoda M, Filipits M. P2.09-004 PD-L1 Protein Expression Is Negative Prognostic Factor in Malignant Pleural Mesothelioma in Central Europe. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1329] [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: 10/18/2022]
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Hoda M, Cavuturu BM, Iqbal S, Shakya G, Rajagopalan R. Disulfiram and disulfiram-loaded poly-[lactide-co-glycolic acid] nanoparticles modulate metastatic markers and proteasomal activity in hepatocarcinoma Hep3b cell line. European Journal of Nanomedicine 2017. [DOI: 10.1515/ejnm-2017-0013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractHepatocellular carcinoma (HCC) results in significantly high mortality rates due to its subtle metastatic expressions. Exorbitant costs of anticancer drugs have lead to the concept of repositioning standard drugs for their anticancer potential. One such antialcoholic drug, disulfiram (DSF), has been reported to show significant cytotoxicity (IC
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Waseda R, Hoda M, Benazzo A, Jaksch P, Klikovits T, Lang G, Taghavi S, Klepetko W. De Novo Solid Organ Malignancies After Lung Transplantation: A 25-Year Single Center Experience. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.241] [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: 11/27/2022] Open
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Hoda M, Pajaniradje S, Shakya G, Mohankumar K, Rajagopalan R. Anti-proliferative and apoptosis-triggering potential of disulfiram and disulfiram-loaded polysorbate 80-stabilized PLGA nanoparticles on hepatocellular carcinoma Hep3B cell line. Nanomedicine 2016; 12:1641-50. [PMID: 27013133 DOI: 10.1016/j.nano.2016.02.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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: 10/20/2015] [Revised: 01/15/2016] [Accepted: 02/08/2016] [Indexed: 01/30/2023]
Abstract
There is an emerging trend to restudy known drugs for their anti-cancer potential. One such anti-alcoholic drug, disulfiram, with significant anti-cancer potential was studied for its efficacy against Hep3B cell lines, an in vitro model of hepatocellular carcinoma. Simultaneously, we intended to study the effect of polysorbate 80-stabilized PLGA nanoparticles and its DSF-loaded counterpart. Cell and nuclear staining, comet assay, flow cytometry and Western blots were performed. Results suggest that cell proliferation was inhibited by DSF and its PLGA nanoparticles through cell cycle arrest, triggering activation of apoptotic pathways that culminates with cell death. DSF loaded nanoparticles when compared with free DSF, showed significantly lesser effect due to its sustained drug-releasing property, while empty nanoparticles showed negligible influence on Hep3B cells. Our results suggest that DSF alone contributes to cell death, while polysorbate 80-stabilized PLGA nanoparticles show sustained drug release patterns that would potentially lower dosage regimens.
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Affiliation(s)
- Muddasarul Hoda
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Sankar Pajaniradje
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Garima Shakya
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Kumaravel Mohankumar
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Rukkumani Rajagopalan
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry, India; Interdisciplinary Programme for Life Sciences, Pondicherry University, Puducherry, India; Department of Biotechnology, University of Madras, Guindy Campus, Chennai, Tamilnadu, India.
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Durairaj V, Hoda M, Shakya G, Babu SPP, Rajagopalan R. Phytochemical screening and analysis of antioxidant properties of aqueous extract of wheatgrass. ASIAN PAC J TROP MED 2014; 7S1:S398-404. [DOI: 10.1016/s1995-7645(14)60265-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 05/19/2014] [Accepted: 06/23/2014] [Indexed: 11/28/2022] Open
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Shakya G, Manjini S, Hoda M, Rajagopalan R. Hepatoprotective role of kaempferol during alcohol- and ΔPUFA-induced oxidative stress. J Basic Clin Physiol Pharmacol 2014; 25:73-79. [PMID: 23893680 DOI: 10.1515/jbcpp-2013-0051] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 07/01/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND The present study aimed to analyze the effect of kaempferol on oxidative stress induced by alcohol and thermally oxidized polyunsaturated fatty acid (ΔPUFA) in male albino Wistar rats. METHODS The rats were divided into four groups. The animals in group 1 served as the normal group (standard diet), group 2 served as the hepatotoxic group (alcohol+ΔPUFA), group 3 served as the treated group (alcohol+ΔPUFA+kaempferol), and group 4 served as kaempferol control. The levels of marker enzyme γ-glutamyl transferase (GGT), lipid peroxidation markers [thiobarbituric acid reactive substances (TBARS) and lipid hydroperoxides (LH)], enzymatic antioxidants (catalase, superoxide dismutase, and glutathione peroxidase), and nonenzymatic antioxidants (reduced glutathione, vitamin E, and vitamin C) were analyzed in liver to evaluate the effects of kaempferol. RESULTS The levels of GGT, TBARS, and LH were significantly increased in liver of the alcohol+ΔPUFA group and were found to be reduced on treatment with kaempferol. The levels of both enzymatic and nonenzymatic antioxidants were decreased in liver of the alcohol+ΔPUFA group and were found to be restored on treatment with kaempferol. CONCLUSIONS From the results obtained, we conclude that kaempferol protects the liver against alcohol- and ΔPUFA- induced oxidative stress.
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Hoda M, Ghanim B, Klikovits T, Hegedus B, Dome B, Arns M, Pohl W, Filipits M, Klepetko W, Berger W. 108P THE VALUE OF THE GLASGOW PROGNOSTIC SCORE IN PATIENTS UNDERGOING SURGERY FOR MALIGNANT PLEURAL MESOTHELIOMA. Lung Cancer 2013. [DOI: 10.1016/s0169-5002(13)70327-1] [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: 11/26/2022]
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Hoda M, Hamza A, Fischer K, Wagner S, Schneider J, Heynemann H, Fornara P. [Obesity as a risk factor for prostate cancer: role for adipocytokines and involvement of tyrosine kinase pathway]. Aktuelle Urol 2010; 41:178-83. [PMID: 20446247 DOI: 10.1055/s-0030-1247348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE Obesity is considered to be a risk factor for prostate cancer. Mitogenic actions of leptin, an adipocyte-derived hormone in a variety of cancer cell types have been identified. We have investigated the proliferative effects of leptin on human prostate cancer cells and assessed the role of tyrosine kinase signalling in mediating these actions. MATERIALS AND METHODS Two human androgen-resistant prostate cancer cell lines and one androgen-sensitive human prostate adenocarcinoma cell line were treated with leptin (5-100 ng / mL) for up to 48 hours. Under serum-free conditions, cell proliferation was measured using an enzyme-linked colorimetric assay. Furthermore, phosphorylation of a downstream component of MAPK (ERK1 / 2) was detected by Western blotting and a specific inhibitor of MAPK (PD98059; 40 microM) was used to evaluate the role of this signalling pathway. RESULTS Leptin dose-dependently increased the cell number in both androgen-resistant cell lines after 24 h and 48 h of incubation (percent of control: DU145 = 194.6 +/- 5.9 %, PC-3 = 177.9 +/- 6.8 %; 100 ng / mL leptin; 48 h; p < 0.001). Conversely, leptin's proliferative effect on the androgen-sensitive cell line was less pronounced (percent of control: LNCaP = 112.3 +/- 6.1 %; 100 ng / mL leptin; 48 h). Leptin also caused dose-dependent ERK1 / 2 phosphorylation in both androgen-resistant cell lines. In addition, pre-treatment with PD98059 inhibited these responses and attenuated leptin's mitogenic action. CONCLUSIONS Data from this in vitro study suggest an association between obesity-associated hyperleptinemia and an increased risk for prostate cancer. Further investigations are necessary to clarify whether these data have clinical relevance regarding the use as a prognostic marker for predicting the timing of the occurrence of androgen resistency.
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Kotani Y, Hamaguchi T, Koyama S, Hoda M. [Delayed skin prophyria]. Acta Dermatol Kyoto Engl Ed 1967; 62:103-6. [PMID: 5630431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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