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Antiproliferative Effect of Phellodendron amurense Rupr. Based on Angiogenesis. Life (Basel) 2022; 12:life12050767. [PMID: 35629433 PMCID: PMC9143060 DOI: 10.3390/life12050767] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/14/2022] [Accepted: 05/16/2022] [Indexed: 11/24/2022] Open
Abstract
Phellodendron amurense Rupr. is medicinal plant used for supplemental therapy of various diseases based on their positive biological activities. The aim of this study was evaluated the main metabolite, safety of application and anticancer potential. Berberine was determined by HPLC as main alkaloid. Harmful character was determined by irritation test in ovo. The potential cancerogenic effect was studied in vitro on a cellular level, in ovo by CAM assay and in vivo on whole organism Artemia franciscana. Extract from the bark of Phellodendron amurense showed antiproliferative and antiangiogenic effects. The results of our work showed promising anticancer effects based also on the inhibition of angiogenesis with minimum negative effects.
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Alam S, Mandal P, Jagdale PR, Ayanur A, Ansari KM. Safety studies of Nexrutine, bark extract of Phellodendron amurense through repeated oral exposure to rats for 28 days. Heliyon 2021; 7:e07654. [PMID: 34386623 PMCID: PMC8342906 DOI: 10.1016/j.heliyon.2021.e07654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/26/2021] [Accepted: 07/20/2021] [Indexed: 11/30/2022] Open
Abstract
Nexrutine (NX), a marketable herbal extract from a traditional Chinese herbal plant, Phellodendron amurense, is majorly used for the resolution of inflammation, gastroenteritis, and some tissue-specific cancer. Strategies for the identification of the safety of anticancer solutions of plant origin are an important area of study. The present investigation assesses the single and repeated dose (28 days) toxicity of NX following OECD guidelines 425 and 407, respectively. Briefly, to identify acute toxic properties of NX, a dose of 2000 mg/kg b. wt was administered once orally. Simultaneously, repeated dose toxicity was evaluated through daily administration of the three different doses (250, 500, 750 mg/kg b. wt) of NX for 28days. The single administration of NX showed no signs of toxicity and morbidity, suggesting LD50 of NX more than 2000 mg/kg b. wt. Furthermore, repeated dose exposure of NX for 28 days did not show any sign of toxicity. Hematology, serum biochemistry, and histopathological analysis also did not show any significant abnormalities. However, a marginal decrease in triglyceride, cholesterol, and glucose levels along with mild tubular degeneration in the kidney was also noticed in the high dose NX treatment group. Overall, the findings of the study suggest that NX is safe for use up to 500 mg/kg b.wt. Single dose toxicity confirms LD50 of NX to be greater than 2000 mg/kg b. wt. Repeated dose toxicity study used three doses of NX (250, 500, 750 mg/kg b. wt). Minimal aberrations in hematology and biochemical parameters. Histopathology depicts mild tubular degeneration at a high dose in the kidney. No morbidity or mortality was recorded in both the experimental setups.
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Affiliation(s)
- Shamshad Alam
- Food Toxicology Laboratory, Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Payal Mandal
- Food Toxicology Laboratory, Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Pankaj Ramji Jagdale
- Pathology Facility, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, P.O. Box#80, Lucknow, 226001, Uttar Pradesh, India
| | - Anjaneya Ayanur
- Pathology Facility, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, P.O. Box#80, Lucknow, 226001, Uttar Pradesh, India
| | - Kausar Mahmood Ansari
- Food Toxicology Laboratory, Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
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Suppression of FAK by nexrutine inhibits gastric cancer progression. Life Sci 2020; 257:118100. [PMID: 32679149 DOI: 10.1016/j.lfs.2020.118100] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/06/2020] [Accepted: 07/11/2020] [Indexed: 01/03/2023]
Abstract
AIM Nexrutine, an herbal extract of Phellodendron amurense, has been found to play a tumor-suppressive role in many cancers. However, its role in the pathogenesis of gastric cancer remains unclear. MATERIALS AND METHODS Gastric cancer cells (SGC-7901 and MGC-803) were treated with nexrutine, and cell proliferation, invasion and apoptosis were analyzed. And the MGC-803 cells-derived xenograft mouse models were fed pelleted diet containing 600 mg/kg nexrutine for 21 days after inoculation. Mechanically, we focused on the influences of nexrutine on the levels and activation of STAT3 and NF-κB as well as their upstream regulator FAK. Additionally, we further verified whether nexrutine affected the proliferation, invasion and apoptosis of gastric cancer cells via FAK by upregulating FAK expression before nexrutine treatment. KEY FINDINGS We found nexrutine inhibited the viability, invasion, and expression levels of PCNA, CyclinD1 and Bcl-2, promoted the apoptosis and Bax expression, decreased levels of STAT3, phospho-STAT3, NF-κB p65, phospho-p65, FAK and phospho-FAK in gastric cancer cells. Overexpression of FAK reversed the impacts of nexrutine on the levels of STAT3, phospho-STAT3, NF-κB p65, phospho-p65, as well as the malignant characteristics of gastric cancer cells. Moreover, nexrutine suppressed tumor volumes and weights, and decreased expression and phosphorylation of FAK, STAT3 and NF-κB p65 in vivo. SIGNIFICANCE Nexrutine inhibited the malignant progression of gastric cancer via negatively regulating STAT3/NF-κB signaling pathway by suppressing FAK expression and activation.
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Zhang H, Jiang H, Zhang H, Liu J, Hu X, Chen L. Anti-tumor efficacy of phellamurin in osteosarcoma cells: Involvement of the PI3K/AKT/mTOR pathway. Eur J Pharmacol 2019; 858:172477. [DOI: 10.1016/j.ejphar.2019.172477] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 06/17/2019] [Accepted: 06/18/2019] [Indexed: 11/29/2022]
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Park JE, Kim DH, Ha E, Choi SM, Choi JS, Chun KS, Joo SH. Thymoquinone induces apoptosis of human epidermoid carcinoma A431 cells through ROS-mediated suppression of STAT3. Chem Biol Interact 2019; 312:108799. [PMID: 31433961 DOI: 10.1016/j.cbi.2019.108799] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 08/07/2019] [Accepted: 08/17/2019] [Indexed: 12/21/2022]
Abstract
Black seed (Nigella sativa) oil has been used in various dermatological applications, and its major constituent, thymoquinone (TQ) has been shown to exhibit antiproliferative activity against various cancer cells. In this study, we tried to provide a mechanistic basis of apoptosis induced by TQ. Skin squamous carcinoma A431 cells were treated with TQ to monitor the apoptosis induced by TQ. Western blot analysis was performed to detect expression of apoptotic or anti-apoptotic proteins. Cell viability and apoptosis were measured by using the MTT test and FACS analysis, respectively. The induction of intracellular reactive oxygen species (ROS) by TQ was evaluated by 2',7'-dichlorofluorescein diacetate staining. In vivo xenograft study was followed to confirm the antiproliferative effect of TQ. Treatment of A431 cells with TQ-induced apoptosis, which was associated with the induction of p53 and Bax, inhibition of Mdm2, Bcl-2, and Bcl-xl expression, and activation of caspase-9, -7, and -3. TQ inhibited the constitutive phosphorylation and DNA binding activity of signal transducer and activator of transcription-3 (STAT3) in A431 cells by blocking the phosphorylation of the upstream kinase, Src. Moreover, the expression of STAT3 target gene products, cyclin D1 and survivin, was attenuated by TQ treatment. The generation of ROS was increased during TQ-induced apoptosis, and the pretreatment of N-acetyl cysteine, a ROS scavenger, reversed the apoptotic effect of TQ. In vivo study with NOD scid gamma (NSG) mice confirmed the inhibitory effect of TQ on the growth of A431 cells. Our results provide the first demonstration that TQ induces the apoptosis of A431 cells through generation of ROS and inhibition of STAT3 signaling.
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Affiliation(s)
- Ji Eun Park
- College of Pharmacy, Keimyung University, Daegu, 42601, South Korea
| | - Do-Hee Kim
- College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Eunyoung Ha
- Department of Biochemistry, Keimyung University School of Medicine, South Korea
| | - Seung Mi Choi
- College of Pharmacy, Keimyung University, Daegu, 42601, South Korea
| | - Joon-Seok Choi
- Department of Pharmacy, Daegu Catholic University, Gyeongbuk, 38430, South Korea
| | - Kyung-Soo Chun
- College of Pharmacy, Keimyung University, Daegu, 42601, South Korea.
| | - Sang Hoon Joo
- Department of Pharmacy, Daegu Catholic University, Gyeongbuk, 38430, South Korea.
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Alternariol induced proliferation in primary mouse keratinocytes and inflammation in mouse skin is regulated via PGE 2/EP2/cAMP/p-CREB signaling pathway. Toxicology 2018; 412:79-88. [PMID: 30503586 DOI: 10.1016/j.tox.2018.11.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 11/19/2018] [Accepted: 11/28/2018] [Indexed: 01/23/2023]
Abstract
Alternariol (AOH) is a mycotoxin that contaminates various food stuffs as well as animal feed and may cause toxicity after consumption. However, a dermal toxic potential of AOH has not been explored so far. In the present study, skin toxicity after topical exposure of AOH and the involved mechanism/s are revealed. Single topical application of different AOH doses (12.5, 25, 50 μg/animal) caused increased bi-fold thickness as well as hyperplasia and higher production of prostaglandin E2 (PGE2) along with cAMP in the skin demonstrating its inflammatory potential. Western blot analysis showed that exposure of AOH lead to phosphorylation of CREB and increased the expression of COX-2, cyclin D1 as well as prostanoid EP2 receptor. Further studies on primary mouse keratinocytes (PMK) revealed that very low concentrations of AOH (50-500 nM) resulted in significant PMK proliferation. Additionally, using specific antagonist or agonist of prostanoid receptors, we delineated that EP2 receptor play a key role in AOH-induced PMKs proliferation. Collectively, our findings show that AOH can lead to dermal toxicity in mice by activating the EP2/cAMP/p-CREB signaling cascade.
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Kumar JP, Alam S, Jain AK, Ansari KM, Mandal BB. Protective Activity of Silk Sericin against UV Radiation-Induced Skin Damage by Downregulating Oxidative Stress. ACS APPLIED BIO MATERIALS 2018; 1:2120-2132. [DOI: 10.1021/acsabm.8b00558] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jadi Praveen Kumar
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati781039, Assam, India
| | | | | | | | - Biman B. Mandal
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati (IITG), Guwahati781039, Assam, India
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Alam S, Pal A, Singh D, Ansari KM. Topical application of Nexrutine inhibits ultraviolet B-induced cutaneous inflammatory responses in SKH-1 hairless mouse. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2017; 34:82-90. [PMID: 28857273 DOI: 10.1111/phpp.12348] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/24/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND Ultraviolet B (UVB) radiation is the major contributor to skin inflammation which leads to the development of skin cancer. Hence, in this study, we studied the effect of Nexrutine (NX) on UVB-induced cutaneous inflammation and its mediators. METHODS Ultraviolet absorption spectra of NX were measured by spectrophotometer. To conduct the photoprotective studies, SKH-1 hairless mice were topically treated with NX, 30 minutes before to the UVB (180 mJ/cm2 ) exposure. Twenty hours of post-UVB irradiation, mouse skin was used for edema measurements, H & E staining, myeloperoxidase (MPO) activity, and estimation of plasma cytokines. In addition, expression levels of inflammatory cytokines, cyclooxygenase-2 (COX-2), and inducible nitric oxide synthase (iNOS) were also determined by Western blot analysis. RESULTS Nexrutine displayed absorbance over the UVB spectrum. NX significantly decreased the UVB-induced epidermal edema, skin thickness, leukocyte infiltration, number of the sunburn, and TUNEL-positive cells. NX treatment also decreased the number of mast cells, MPO activity, expression of pro-inflammatory cytokines, and inflammation mediator protein in mouse skin. CONCLUSION These results provide evidences that NX inhibits the UVB-induced cutaneous inflammatory responses in SKH-1 mouse skin.
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Affiliation(s)
- Shamshad Alam
- Environmental Carcinogenesis Laboratory, Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Anu Pal
- Environmental Carcinogenesis Laboratory, Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Dhirendra Singh
- Animal House Facility, CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Kausar Mahmood Ansari
- Environmental Carcinogenesis Laboratory, Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
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Zheng Y, Zhang Y, Geng S, Xu M, Yin Q, Song L, Zhuang P, Zhang Y. Identification of the constituents and metabolites in rats after oral administration of Zi Shen Formula by UPLC-Q-TOF/MS combined pattern recognition analysis. Biomed Chromatogr 2017; 32. [DOI: 10.1002/bmc.4060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 07/30/2017] [Accepted: 08/04/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Yanchao Zheng
- School of Chinese Materia Medica, Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin People's Republic of China
| | - Yidan Zhang
- School of Chinese Materia Medica, Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin People's Republic of China
| | - Shihan Geng
- School of Chinese Materia Medica, Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin People's Republic of China
| | - Mengxi Xu
- School of Chinese Materia Medica, Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin People's Republic of China
| | - Qingshen Yin
- School of Chinese Materia Medica, Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin People's Republic of China
| | - Lili Song
- School of Chinese Materia Medica, Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin People's Republic of China
| | - Pengwei Zhuang
- School of Chinese Materia Medica, Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin People's Republic of China
| | - Yanjun Zhang
- School of Chinese Materia Medica, Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin People's Republic of China
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Madhunapantula SV, Robertson GP. Targeting protein kinase-b3 (akt3) signaling in melanoma. Expert Opin Ther Targets 2017; 21:273-290. [PMID: 28064546 DOI: 10.1080/14728222.2017.1279147] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Deregulated Akt activity leading to apoptosis inhibition, enhanced proliferation and drug resistance has been shown to be responsible for 35-70% of advanced metastatic melanomas. Of the three isoforms, the majority of melanomas have elevated Akt3 expression and activity. Hence, potent inhibitors targeting Akt are urgently required, which is possible only if (a) the factors responsible for the failure of Akt inhibitors in clinical trials is known; and (b) the information pertaining to synergistically acting targeted therapeutics is available. Areas covered: This review provides a brief introduction of the PI3K-Akt signaling pathway and its role in melanoma development. In addition, the functional role of key Akt pathway members such as PRAS40, GSK3 kinases, WEE1 kinase in melanoma development are discussed together with strategies to modulate these targets. Efficacy and safety of Akt inhibitors is also discussed. Finally, the mechanism(s) through which Akt leads to drug resistance is discussed in this expert opinion review. Expert opinion: Even though Akt play key roles in melanoma tumor progression, cell survival and drug resistance, many gaps still exist that require further understanding of Akt functions, especially in the (a) metastatic spread; (b) circulating melanoma cells survival; and
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Affiliation(s)
- SubbaRao V Madhunapantula
- a Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR), Department of Biochemistry , JSS Medical College, Jagadguru Sri Shivarathreeshwara University (Accredited 'A' Grade by NAAC and Ranked 35 by National Institutional Ranking Framework (NIRF)-2015, Ministry of Human Resource Development, Government of India) , Mysuru , India
| | - Gavin P Robertson
- b Department of Pharmacology , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,c Department of Pathology , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,d Department of Dermatology , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,e Department of Surgery , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,f The Melanoma Center , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,g The Melanoma Therapeutics Program , The Pennsylvania State University College of Medicine , Hershey , PA , USA
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Abbas S, Alam S, Pal A, Kumar M, Singh D, Ansari KM. UVB exposure enhanced benzanthrone-induced inflammatory responses in SKH-1 mouse skin by activating the expression of COX-2 and iNOS through MAP kinases/NF-κB/AP-1 signalling pathways. Food Chem Toxicol 2016; 96:183-90. [DOI: 10.1016/j.fct.2016.07.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 07/18/2016] [Accepted: 07/28/2016] [Indexed: 12/16/2022]
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12
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Alam S, Pal A, Kumar R, Mir SS, Ansari KM. Nexrutine inhibits azoxymethane-induced colonic aberrant crypt formation in rat colon and induced apoptotic cell death in colon adenocarcinoma cells. Mol Carcinog 2016; 55:1262-74. [PMID: 26259065 DOI: 10.1002/mc.22368] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 06/23/2015] [Accepted: 07/06/2015] [Indexed: 12/18/2022]
Abstract
Colon cancer is the third most common cause of death in the United States. Therefore, new preventive strategies are warranted for preventing colon cancer. Nexrutine (NX), an herbal extract from Phellodendron amurense, has been shown to have anti-inflammatory, anti-microbial and anti-cancer activity for various tissue specific cancers, but its chemopreventive efficacy has not been evaluated against colon cancer. Here, we explored the mechanism of chemopreventive/chemotherapeutic efficacy of NX against colon cancer. We found that dietary exposure of NX significantly reduced the number of azoxymethane (AOM)-induced aberrant crypt foci (ACF) in rats. In addition, significant inhibition in AOM-induced cell proliferation and reduced expression of the inflammatory markers COX-2, iNOS as well as the proliferative markers PCNA and cyclin D1 were also seen. Moreover, NX exposure significantly enhanced apoptosis in the colon of AOM treated rats. Furthermore, in in vitro studies, NX (2.5, 5, 10 μg/ml, 48 h) decreased cell survival and colony formation while inducing G0/G1 cell cycle arrest and apoptosis in colon adenocarcinoma cells COLO205 and HCT-15. However, NX had minimal cytotoxic effect on IEC-6 normal rat intestinal cells, suggesting its high therapeutic index. NX treatment also modulates the level of Bax and Bcl-2 proteins along with cytochrome c release, cleavage and enhanced expression of poly (adenosine diphosphate-ribose) polymerase as well as the catalytic activity of caspase 3 and caspase 9 in both COLO205 and HCT-15 cells. Based on these in vivo and in vitro findings, we suggest that NX could be useful candidate agent for colon cancer chemoprevention and treatment. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Shamshad Alam
- Environmental Carcinogenesis Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, India
- Department of Bio-engineering, Integral University, Lucknow, India
| | - Anu Pal
- Environmental Carcinogenesis Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, India
| | - Rahul Kumar
- Food Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, India
| | - Snober S Mir
- Department of Bio-engineering, Integral University, Lucknow, India
| | - Kausar M Ansari
- Environmental Carcinogenesis Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, India
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Gong J, Muñoz AR, Pingali S, Payton-Stewart F, Chan DE, Freeman JW, Ghosh R, Kumar AP. Downregulation of STAT3/NF-κB potentiates gemcitabine activity in pancreatic cancer cells. Mol Carcinog 2016; 56:402-411. [PMID: 27208550 DOI: 10.1002/mc.22503] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 05/03/2016] [Accepted: 05/13/2016] [Indexed: 12/23/2022]
Abstract
There is an unmet need to develop new agents or strategies against therapy resistant pancreatic cancer (PanCA). Recent studies from our laboratory showed that STAT3 negatively regulates NF-κB and that inhibition of this crosstalk using Nexrutine® (Nx) reduces transcriptional activity of COX-2. Inhibition of these molecular interactions impedes pancreatic cancer cell growth as well as reduces fibrosis in a preclinical animal model. Nx is an extract derived from the bark of Phellodendron amurense and has been utilized in traditional Chinese medicine as antidiarrheal, astringent, and anti-inflammatory agent for centuries. We hypothesized that "Nx-mediated inhibition of survival molecules like STAT3 and NF-κB in pancreatic cancer cells will improve the efficacy of the conventional chemotherapeutic agent, gemcitabine (GEM)." Therefore, we explored the utility of Nx, one of its active constituents berberine and its derivatives, to enhance the effects of GEM. Using multiple human pancreatic cancer cells we found that combination treatment with Nx and GEM resulted in significant alterations of proteins in the STAT3/NF-κB signaling axis culminating in growth inhibition in a synergistic manner. Furthermore, GEM resistant cells were more sensitive to Nx treatment than their parental GEM-sensitive cells. Interestingly, although berberine, the Nx active component used, and its derivatives were biologically active in GEM sensitive cells they did not potentiate GEM activity when used in combination. Taken together, these results suggest that the natural extract, Nx, but not its active component, berberine, has the potential to improve GEM sensitivity, perhaps by down regulating STAT3/NF-κB signaling. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jingjing Gong
- Department of Pharmacology, University of Texas Health Science Center, San Antonio, Texas
| | - Amanda R Muñoz
- Department of Urology, University of Texas Health Science Center, San Antonio, Texas
| | - Subramanya Pingali
- Department of Chemistry, Xavier University of Louisiana, New Orleans, Los Angeles
| | | | - Daniel E Chan
- Division of Medical Oncology, University of Colorado, Aurora, Colorado
| | - James W Freeman
- Division of Medical Oncology, University of Texas Health Science Center, San Antonio, Texas.,Cancer Therapy and Research Center, University of Texas Health Science Center, San Antonio, Texas.,South Texas Veterans Health Care System, San Antonio, Texas
| | - Rita Ghosh
- Department of Pharmacology, University of Texas Health Science Center, San Antonio, Texas.,Department of Urology, University of Texas Health Science Center, San Antonio, Texas.,Cancer Therapy and Research Center, University of Texas Health Science Center, San Antonio, Texas.,Department of Molecular Medicine, University of Texas Health Science Center, San Antonio, Texas
| | - Addanki P Kumar
- Department of Pharmacology, University of Texas Health Science Center, San Antonio, Texas.,Department of Urology, University of Texas Health Science Center, San Antonio, Texas.,Cancer Therapy and Research Center, University of Texas Health Science Center, San Antonio, Texas.,South Texas Veterans Health Care System, San Antonio, Texas.,Department of Molecular Medicine, University of Texas Health Science Center, San Antonio, Texas
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Law BYK, Mok SWF, Wu AG, Lam CWK, Yu MXY, Wong VKW. New Potential Pharmacological Functions of Chinese Herbal Medicines via Regulation of Autophagy. Molecules 2016; 21:359. [PMID: 26999089 PMCID: PMC6274228 DOI: 10.3390/molecules21030359] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 02/29/2016] [Accepted: 03/09/2016] [Indexed: 12/12/2022] Open
Abstract
Autophagy is a universal catabolic cellular process for quality control of cytoplasm and maintenance of cellular homeostasis upon nutrient deprivation and environmental stimulus. It involves the lysosomal degradation of cellular components such as misfolded proteins or damaged organelles. Defects in autophagy are implicated in the pathogenesis of diseases including cancers, myopathy, neurodegenerations, infections and cardiovascular diseases. In the recent decade, traditional drugs with new clinical applications are not only commonly found in Western medicines, but also highlighted in Chinese herbal medicines (CHM). For instance, pharmacological studies have revealed that active components or fractions from Chaihu (Radix bupleuri), Hu Zhang (Rhizoma polygoni cuspidati), Donglingcao (Rabdosia rubesens), Hou po (Cortex magnoliae officinalis) and Chuan xiong (Rhizoma chuanxiong) modulate cancers, neurodegeneration and cardiovascular disease via autophagy. These findings shed light on the potential new applications and formulation of CHM decoctions via regulation of autophagy. This article reviews the roles of autophagy in the pharmacological actions of CHM and discusses their new potential clinical applications in various human diseases.
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Affiliation(s)
- Betty Yuen Kwan Law
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
| | - Simon Wing Fai Mok
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
| | - An Guo Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
| | - Christopher Wai Kei Lam
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
| | - Margaret Xin Yi Yu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
| | - Vincent Kam Wai Wong
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
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Patil S, Paradeshi J, Chaudhari B. Anti-melanoma and UV-B protective effect of microbial pigment produced by marine Pseudomonas aeruginosa GS-33. Nat Prod Res 2016; 30:2835-2839. [PMID: 26961322 DOI: 10.1080/14786419.2016.1154057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Bioactivity of a microbial pigment, extracted from fermented broth of culture marine Pseudomonas aeruginosa was screened for anticancer activity against human skin melanoma cell line SK-MEL-2. Upon characterisation, the pigment was confirmed as Phenazine-1-carboxylic acid (PCA). The PCA was found effective against SK-MEL-2 cell line at low concentration (GI50 value <10 μg/mL). Reduced cell density and cell shrinkage with typical morphological changes such as rounding of cells with loss/breaking of cell membrane were seen in SK-MEL-2 cells treated with PCA and Adriamycin. The pigment exhibited UV-B protecting activity as calculated by in vitro spectrophotometric assay and potentiated sun protection factor of commercial sunscreen lotion. Moreover, the pigment was non-toxic up to concentration of 100 ppm as assessed erythrocyte haemolysis assay. These results suggest that microbial pigment PCA could be effective and promising in the treatment as well as prevention of melanoma skin cancers.
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Affiliation(s)
- Sandeep Patil
- a Department of Microbiology, School of Life Sciences , North Maharashtra University , Jalgaon, India
| | - Jayasinh Paradeshi
- a Department of Microbiology, School of Life Sciences , North Maharashtra University , Jalgaon, India
| | - Bhushan Chaudhari
- a Department of Microbiology, School of Life Sciences , North Maharashtra University , Jalgaon, India
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Hambright HG, Batth IS, Xie J, Ghosh R, Kumar AP. Palmatine inhibits growth and invasion in prostate cancer cell: Potential role for rpS6/NFκB/FLIP. Mol Carcinog 2015; 54:1227-34. [PMID: 25043857 PMCID: PMC4490121 DOI: 10.1002/mc.22192] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 05/09/2014] [Accepted: 05/22/2014] [Indexed: 12/17/2022]
Abstract
Novel agents are desperately needed for improving the quality of life and 5-year survival to more than 30% for metastatic castrate-resistant prostate cancer. Previously we showed that Nexrutine, Phellodendron amurense bark extract, inhibits prostate tumor growth in vitro and in vivo. Subsequently using biochemical fractionation we identified butanol fraction contributes to the observed biological activities. We report here that palmatine, which is present in the butanol fraction, selectively inhibits growth of prostate cancer cells without significant effect on non-tumorigenic prostate epithelial cells. By screening receptor tyrosine kinases in a protein kinase array, we identified ribosomal protein S6, a downstream target of p70S6K and the Akt/mTOR signaling cascade as a potential target. We further show that palmatine treatment is associated with decreased activation of NFκB and its downstream target gene FLIP. These events led to inhibition of invasion. Similar results were obtained using parent extract Nexrutine (Nx) suggesting that palmatine either in the purified form or as one of the components in Nx is a potent cytotoxic agent with tumor invasion inhibitory properties. Synergistic inhibition of rpS6/NFκB/FLIP axis with palmatine may have therapeutic potential for the treatment of prostate cancer and possibly other malignancies with their constitutive activation. These data support a biological link between rpS6/NFκB/FLIP in mediating palmatine-induced inhibitory effects and warrants additional preclinical studies to test its therapeutic efficacy.
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Affiliation(s)
- Heather G Hambright
- Department of Urology, School of Medicine, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Izhar Singh Batth
- Department of Urology, School of Medicine, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Jianping Xie
- Department of Urology, School of Medicine, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Rita Ghosh
- Department of Urology, School of Medicine, University of Texas Health Science Center, San Antonio, Texas, USA
- Department of Pharmacology, School of Medicine, University of Texas Health Science Center, San Antonio, Texas, USA
- Cancer Therapy and Research Center, San Antonio, Texas, USA
| | - Addanki Pratap Kumar
- Department of Urology, School of Medicine, University of Texas Health Science Center, San Antonio, Texas, USA
- Department of Pharmacology, School of Medicine, University of Texas Health Science Center, San Antonio, Texas, USA
- Cancer Therapy and Research Center, San Antonio, Texas, USA
- South Texas Veterans Health Care System, San Antonio, Texas, USA
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Hambright HG, Meng P, Kumar AP, Ghosh R. Inhibition of PI3K/AKT/mTOR axis disrupts oxidative stress-mediated survival of melanoma cells. Oncotarget 2015; 6:7195-208. [PMID: 25749517 PMCID: PMC4466678 DOI: 10.18632/oncotarget.3131] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 01/09/2015] [Indexed: 12/17/2022] Open
Abstract
Elevated oxidative stress in cancer cells contributes to hyperactive proliferation and enhanced survival, which can be exploited using agents that increase reactive oxygen species (ROS) beyond a threshold level. Here we show that melanoma cells exhibit an oxidative stress phenotype compared with normal melanocytes, as evidenced by increased total cellular ROS, KEAP1/NRF2 pathway activity, protein damage, and elevated oxidized glutathione. Our overall objective was to test whether augmenting this high oxidative stress level in melanoma cells would inhibit their dependence on oncogenic PI3K/AKT/mTOR-mediated survival. We report that NexrutineR augmented the constitutively elevated oxidative stress markers in melanoma cells, which was abrogated by N-acetyl cysteine (NAC) pre-treatment. NexrutineR disrupted growth homeostasis by inhibiting proliferation, survival, and colony formation in melanoma cells without affecting melanocyte cell viability. Increased oxidative stress in melanoma cells inhibited PI3K/AKT/mTOR pathway through disruption of mTORC1 formation and phosphorylation of downstream targets p70S6K, 4EBP1 and rpS6. NAC pre-treatment reversed inhibition of mTORC1 targets, demonstrating a ROS-dependent mechanism. Overall, our results illustrate the importance of disruption of the intrinsically high oxidative stress in melanoma cells to selectively inhibit their survival mediated by PI3K/AKT/mTOR.
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Affiliation(s)
- Heather G. Hambright
- Department of Urology, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
| | - Peng Meng
- Department of Urology, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
- Life Sciences Division, Lawrence Berkley National Laboratory, Berkley, California, 94710, USA
| | - Addanki P. Kumar
- Department of Urology, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
- Department of Pharmacology, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
- Department of Molecular Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
- Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
- South Texas Veterans Health Care System, San Antonio, Texas, 78229, USA
| | - Rita Ghosh
- Department of Urology, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
- Department of Pharmacology, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
- Department of Molecular Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
- Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
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Hussain SS, Patel D, Ghosh R, Kumar AP. Extracting the Benefit of Nexrutine® for Cancer Prevention. ACTA ACUST UNITED AC 2015; 1:365-372. [DOI: 10.1007/s40495-015-0029-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Gong J, Muñoz AR, Chan D, Ghosh R, Kumar AP. STAT3 down regulates LC3 to inhibit autophagy and pancreatic cancer cell growth. Oncotarget 2015; 5:2529-41. [PMID: 24796733 PMCID: PMC4058024 DOI: 10.18632/oncotarget.1810] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The dismal 5-year survival (<5%) for pancreatic cancer (PanCA) underscores the need for developing effective therapeutic options. Recent studies from our laboratory have shown that Nexrutine® (Nx), a bark extract from Phellodendron amurense exhibits excellent anticancer activity in human pancreatic cancer cells through inhibition of inflammatory signaling via STAT3/NFκB/Cox-2. Given the apparent high oxidative stress and autophagic activity in pancreatic tumors, we investigated the potential of Nx to modulate autophagy, reactive oxygen species (ROS), and their crosstalk. Our results show that Nx inhibits autophagy and decreases ROS generation. Pharmacological inhibition of autophagy led to decreased ROS generation and proliferation with no significant effect on apoptosis. Further, using combination index analysis we also found that combination of late-stage autophagy inhibitor with Nx exhibited a moderate synergistic to additive effect. Additionally, genetic or pharmacological inactivation of STAT3 reduced LC3-II levels and expression indicating a possible role for STAT3 in transcriptional regulation of autophagy. Since both inflammatory and oxidative stress signaling activate STAT3, our data implicates that STAT3 plays a vital role in the regulation of autophagy through its contributions to the positive feedback loop between ROS and autophagy. Overall, our findings reveal an important role for STAT3/LC3/ROS in Nx-mediated anti-pancreatic cancer effects.
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Affiliation(s)
- Jingjing Gong
- Department of Urology, The University of Texas Health Science Center, San Antonio, TX
| | | | | | | | - Addanki P Kumar
- Cancer Therapy and Research Center, The University of Texas Health Science Center, San Antonio, TX
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Alam S, Yadav RS, Pal A, Purshottam SK, Chaudhari BP, Das M, Ansari KM. Dietary administration of Nexrutine inhibits rat liver tumorigenesis and induces apoptotic cell death in human hepatocellular carcinoma cells. Toxicol Rep 2014; 2:1-11. [PMID: 28962332 PMCID: PMC5598519 DOI: 10.1016/j.toxrep.2014.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 11/04/2014] [Accepted: 11/04/2014] [Indexed: 01/14/2023] Open
Abstract
Nexrutine has anti-tumor potential in Solt-Farber rat liver tumorigenesis model. Nexrutine caused decreased cell proliferation in the DEN/2-AAF treated rats. It decreases cell viability of liver cancer cells and modulates pro- and anti-apoptotic markers. Nexrutine modulates the cell cycle regulatory proteins and MAPKs.
Epidemiological studies suggested that plant-based dietary supplements can reduce the risk of liver cancer. Nexrutine (NX), an herbal extract from Phellodendronamurense, has been shown to have anti-inflammatory, anti-microbial and anti-tumor activities. In the present study, we have shown the anti-tumor potential of NX against Solt-Farber model with elimination of PH, rat liver tumor induced by diethylnitrosoamine (DEN) as carcinogen and 2-acetylaminofluorene (2-AAF) as co-carcinogen. The elucidation of mechanistic pathways was explored in human liver cancer cells. Dietary intake of NX significantly decreased the cell proliferation and inflammation, as well as increased apoptosis in the liver sections of DEN/2-AAF-treated rats. Moreover, NX (2.5–10 μg/ml) exposure significantly decreased the viability of liver cancer cells and modulated the levels of Bax and Bcl-2 proteins levels. NX treatment resulted in increased cytochrome-c release and cleavage of caspases 3 and 9. In addition, NX decreased the expression of CDK2, CDK4 and associated cyclins E1 and D1, while up-regulated the expression of p21, p27 and p53 expression. NX also enhanced phosphorylation of the mitogen-activated protein kinases (MAPKs) ERK1/2, p38 and JNK1/2. Collectively, these findings suggested that NX-mediated protection against DEN/2-AAF-induced liver tumorigenesis involves decrease in cell proliferation and enhancement in apoptotic cell death of liver cancer cells.
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Affiliation(s)
- Shamshad Alam
- Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Mahatma Gandhi Marg, P.O. Box#80, Lucknow 226001, India
| | - Ravi S Yadav
- Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Mahatma Gandhi Marg, P.O. Box#80, Lucknow 226001, India
| | - Anu Pal
- Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Mahatma Gandhi Marg, P.O. Box#80, Lucknow 226001, India
| | - Shakendra K Purshottam
- Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Mahatma Gandhi Marg, P.O. Box#80, Lucknow 226001, India
| | - Bhushan P Chaudhari
- Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Mahatma Gandhi Marg, P.O. Box#80, Lucknow 226001, India
| | - Mukul Das
- Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Mahatma Gandhi Marg, P.O. Box#80, Lucknow 226001, India
| | - Kausar M Ansari
- Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Mahatma Gandhi Marg, P.O. Box#80, Lucknow 226001, India
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Wang L, Yan G, Zhang A, Shi H, Sun H, Wang X. Fingerprinting and Simultaneous Determination of Alkaloids and Limonins in Phellodendri Amurensis Cortex From Different Locations by High-Performance Liquid Chromatography with Diode Array Detection. J Chromatogr Sci 2014; 53:161-6. [DOI: 10.1093/chromsci/bmu034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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22
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Alam S, Pal A, Kumar R, Dwivedi PD, Das M, Ansari KM. EGFR-mediated Akt and MAPKs signal pathways play a crucial role in patulin-induced cell proliferation in primary murine keratinocytes via modulation of Cyclin D1 and COX-2 expression. Mol Carcinog 2013; 53:988-98. [PMID: 23813870 DOI: 10.1002/mc.22060] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 05/21/2013] [Accepted: 06/03/2013] [Indexed: 12/31/2022]
Abstract
Patulin (PAT), a present day major contaminant of commercial apple and apple products is reported to be carcinogenic, embryotoxic, and immunotoxic. While oral and inhalation are considered to be the most prevalent routes of exposure to this toxin, exposure through skin is now being extensively investigated. Our previous study showed that short-term dermal exposure to PAT resulted in toxicological injury to the skin, while long-term exposure induced skin tumorigenesis. In this study, we explore the mechanism involve in proliferation of mouse keratinocytes by PAT. Our study revealed that PAT rapidly induces phosphorylation of EGFR, activation of the Ras/MAPKs, and Akt pathways. This in-turn leads to the activation of NF-κB/AP-1 transcription factors which then binds to the promoter region of the cell growth regulatory genes Cyclin D1 and COX-2 inducing their expression leading ultimately to PMKs proliferation. Inhibition of EGFR or the Ras/MAPKs, PI3/Akt pathways with different pharmacological inhibitors or knockdown of NF-κB, c-jun, c-fos, Cyclin D1, and COX-2 with siRNA inhibited PAT-induced PMKs proliferation.
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Affiliation(s)
- Shamshad Alam
- Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, Uttar Pradesh, India
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