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Pan L, Liu C, Liu Q, Li Y, Du C, Kang X, Dong S, Zhou Z, Chen H, Liang X, Chu J, Xu Y, Zhang Q. Human Wharton's jelly-derived mesenchymal stem cells alleviate concanavalin A-induced fulminant hepatitis by repressing NF-κB signaling and glycolysis. Stem Cell Res Ther 2021; 12:496. [PMID: 34503553 PMCID: PMC8427901 DOI: 10.1186/s13287-021-02560-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 05/06/2021] [Accepted: 08/20/2021] [Indexed: 02/08/2023] Open
Abstract
Background Fulminant hepatitis is a severe life-threatening clinical condition with rapid progressive loss of liver function. It is characterized by massive activation and infiltration of immune cells into the liver and disturbance of inflammatory cytokine production. Mesenchymal stem cells (MSCs) showed potent immunomodulatory properties. Transplantation of MSCs is suggested as a promising therapeutic approach for a host of inflammatory conditions. Methods In the current study, a well-established concanavalin A (Con A)-induced fulminant hepatitis mouse model was used to investigate the effects of transplanting human umbilical cord Wharton's jelly-derived MSCs (hWJ-MSCs) on fulminant hepatitis. Results We showed that hWJ-MSCs effectively alleviate fulminant hepatitis in mouse models, primarily through inhibiting T cell immunity. RNA sequencing of liver tissues and human T cells co-cultured with hWJ-MSCs showed that NF-κB signaling and glycolysis are two main pathways mediating the protective role of hWJ-MSCs on both Con A-induced hepatitis in vivo and T cell activation in vitro. Conclusion In summary, our data confirmed the potent therapeutic role of MSCs-derived from Wharton's jelly of human umbilical cord on Con A-induced fulminant hepatitis, and uncovered new mechanisms that glycolysis metabolic shift mediates suppression of T cell immunity by hWJ-MSCs. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02560-x.
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Affiliation(s)
- Lijie Pan
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China.,Cell-Gene Therapy Translational Medicine Research Centre, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chang Liu
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China.,Cell-Gene Therapy Translational Medicine Research Centre, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Qiuli Liu
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China.,Cell-Gene Therapy Translational Medicine Research Centre, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yanli Li
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Cong Du
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Xinmei Kang
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Shuai Dong
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Zhuowei Zhou
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Huaxin Chen
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Xiaoqi Liang
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Jiajie Chu
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Yan Xu
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China.
| | - Qi Zhang
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China. .,Cell-Gene Therapy Translational Medicine Research Centre, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
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Kumar P, Kanjilal P, Das R, Dash TK, Mohanan M, Le TN, Rao NV, Mukhopadhyay B, Shunmugam R. 1,6-heptadiynes based cyclopolymerization functionalized with mannose by post polymer modification for protein interaction. Carbohydr Res 2021; 508:108397. [PMID: 34280802 DOI: 10.1016/j.carres.2021.108397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 12/15/2022]
Abstract
Carbohydrate functionalized polymers or Glycopolymers have earned a great deal of interest in recent times for their potential biomedical applications. In the present study, a mannose containing glycopolymer was synthesized by cyclopolymerization of malonic acid derivative using second generation Hoveyda Grubbs' catalyst. Post-polymerization modification was done to install a propargyl moiety. Finally, functionalization of the propargylated polymer with 2-azidoethyl mannoside using azide-alkyne "click chemistry" furnished the target glycopolymer which was successfully characterized using NMR, FT-IR, mass spectroscopy and advanced polymer chromatography. The glycopolymer was found to self-assemble into capsule and spherical shape in water and DMSO respectively and these morphologies were observed through SEM and TEM. Upon interaction with Con A, the mannose containing glycopolymer showed an increment in aggregation induced fluorescence with increasing concentration of the lectin. In vitro cytotoxicity studies on MCF 7 cell line showed 90% cell viability up to glycopolymer concentration of 500 μg/mL.
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Affiliation(s)
- Pawan Kumar
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Nadia, West Bengal, 741246, India
| | - Pintu Kanjilal
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Nadia, West Bengal, 741246, India
| | - Rituparna Das
- Sweet Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246, India
| | - Tapan K Dash
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Nadia, West Bengal, 741246, India
| | - Manikandan Mohanan
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Nadia, West Bengal, 741246, India
| | - Trong-Nghia Le
- Medicinal Polymer Chemistry Lab, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - N Vijayakameswara Rao
- Medicinal Polymer Chemistry Lab, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Balaram Mukhopadhyay
- Sweet Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246, India.
| | - Raja Shunmugam
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Nadia, West Bengal, 741246, India.
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3
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Khaghanzadeh N, Samiei A, Mojtahedi Z, Ramezani M, Hosseinzadeh M, Ghaderi A. Umbelliprenin induced both anti-inflammatory and regulatory cytokines in C57/BL6 mice. Iran J Basic Med Sci 2017; 20:829-834. [PMID: 28852449 PMCID: PMC5569593 DOI: 10.22038/ijbms.2017.9021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective(s): Umbelliprenin is a prenyloxy-coumarin with pharmacologically polyvalent activity. Several studies have shown Several studies have been shown its anti-inflammatory, anti-tumor, antioxidant, and antigenotoxic activities. However, the exact mechanism of action of this compound on the immune response has not yet been shown. Here, we investigated umbelliprenin effects on the predominance of Th1 and Th2 responses in normal C57/BL6 mice. Materials and Methods: Umbelliprenin (2.5 mg/200 µl IP) were administered to six C57/BL6 mice every other day for 8 days. Paraffin and PBS-injected mice were enrolled as solvent and control groups, respectively (n=6 mice/group). IL-10, IFN-γ, and IL-4 levels were determined in sera and also in splenocytes culture supernatants in the presence of Con A (3 µg/ml) after 72 hr. H&E staining of paraffin embedded blocks was performed for lung and liver tissues of mice. Results: Umbelliprenin could significantly increase the secretion of IFN-γ and IL-4 in sera and IL-10 in splenocytes cultures. Comparison of IFN-γ/IL-4 in the sera and splenocytes culture supernatants showed lower ratios in umbelliprenin treated mice than in solvent and untreated groups. Conclusion: The in vivo study showed that umbelliprenin could induce anti-inflammatory responses via the predominance of Th2 cells and some regulatory responses in C57/BL6 mice.
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Affiliation(s)
- Narges Khaghanzadeh
- Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.,Department of Immunology, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Afshin Samiei
- Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.,Department of Immunology, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Zahra Mojtahedi
- Shiraz Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Abbas Ghaderi
- Shiraz Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran
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Liu H, Hai L, Tian J, Xiang J, Fan Y, Zhang H, Liu J, Zhang X. Anti-CD24 neutralizing antibody exacerbates Concanavalin A-induced acute liver injury in mice via liver M1 macrophages. Immunol Lett 2016; 181:87-93. [PMID: 27919748 DOI: 10.1016/j.imlet.2016.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 09/09/2016] [Revised: 11/07/2016] [Accepted: 11/30/2016] [Indexed: 01/22/2023]
Abstract
Liver largely relies on its innate immunity to initiate quick and effective defense against potentially toxic agents, and innate immune cells are major players in this process. However, excessive inflammation due to out-of-control immune response may eventually cause liver injury. Thus, it is important to fully understand the regulatory mechanisms associated with liver inflammation. Here we showed that anti-CD24 neutralizing antibody exacerbated hepatic inflammation in a Con A-induced acute liver injury murine model. Our results supported that hepatic macrophages were required for anti-CD24 neutralizing antibody-aggravated liver inflammation, as depletion of macrophages significantly alleviated Con A-induced inflammation. M1 macrophages, but not M2 macrophages, were specifically induced by Con A, and more greatly by Con A in combination with anti-CD24 neutralizing antibody. The combined treatment further promoted M1 hepatic macrophages to express TNF-α, which increased hepatocytes apoptosis. Taken together, these data suggest that anti-CD24 neutralizing antibody plays an important role in aggravating inflammation in the process of Con A-induced acute liver injury in mice. The possible mechanism might involve the enhanced secretion of TNF-α by hepatic M1 macrophages. This study also implicates a role for CD24 in negative regulation of Con A-induced liver inflammation.
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Affiliation(s)
- Hongyu Liu
- Department of Immunology, School of Basic Medical Sciences, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, Tianjin Medical University, Tianjin 300070, China; Department of Laboratory Medicine, Xiqing Hospital of Tianjin, Tianjin 300380, China
| | - Lei Hai
- Department of Immunology, School of Basic Medical Sciences, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, Tianjin Medical University, Tianjin 300070, China
| | - Jingqi Tian
- Department of Breast and Thyroid Surgery, Shaoxing People's Hospital and Shaoxing Hospital of Zhejiang University, Shaoxing 312000, China
| | - Jie Xiang
- Department of Immunology, School of Basic Medical Sciences, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, Tianjin Medical University, Tianjin 300070, China
| | - Yatong Fan
- Department of Immunology, School of Basic Medical Sciences, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, Tianjin Medical University, Tianjin 300070, China
| | - Hua Zhang
- Department of Clinical Laboratory, College of Stomatology, Tianjin Medical University, Tianjin 300070, China
| | - Jianhui Liu
- School of Medical English and Health Communication, Tianjin Medical University, Tianjin 300070, China
| | - Xuejun Zhang
- Department of Immunology, School of Basic Medical Sciences, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Educational Ministry of China, Tianjin Medical University, Tianjin 300070, China.
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5
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Yoshizumi Y, Yukawa H, Iwaki R, Fujinaka S, Kanou A, Kanou Y, Yamada T, Nakagawa S, Ohara T, Nakagiri K, Ogihara Y, Tsutsui Y, Hayashi Y, Ishigami M, Baba Y, Ishikawa T. Immunomodulatory Effects of Adipose Tissue-Derived Stem Cells on Concanavalin A-Induced Acute Liver Injury in Mice. Cell Med 2016; 9:21-33. [PMID: 28174672 DOI: 10.3727/215517916x693159] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cell therapy with adipose tissue-derived stem cells (ASCs) is expected to be a candidate for the treatment of fulminant hepatic failure (FHF), which is caused by excessive immune responses. In order to evaluate the therapeutic effects of ASCs on FHF, the in vitro and in vivo immunomodulatory effects of ASCs were examined in detail in the mouse model. The in vitro effects of ASCs were examined by assessing their influence on the proliferation of lymphomononuclear cells (LMCs) stimulated with three kinds of mitogens: phorbol 12-myristate 13-acetate (PMA) plus ionomycin, concanavalin A (ConA), and lipopolysaccharide (LPS). The proliferation of LMCs was efficiently suppressed in a dose-dependent manner by ASCs in the cases of PMA plus ionomycin stimulation and ConA stimulation, but not in the case of LPS stimulation. The in vivo effects of transplanted ASCs were examined in the murine FHF model induced by ConA administration. The ALT levels and histological inflammatory changes in the ConA-administered mice were apparently relieved by the transplantation of ASCs. The analysis of mRNA expression patterns in the livers indicated that the expressions of the cytokines such as Il-6, Il-10, Ifn-γ, and Tnf-α, and the cell surface markers such as Cd3γ, Cd4, Cd8α, Cd11b, and Cd11c were downregulated in the ASC-transplanted mice. The immunomodulatory and therapeutic effects of ASCs were confirmed in the mouse model both in vitro and in vivo. These suggest that the cell therapy with ASCs is beneficial for the treatment of FHF.
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Affiliation(s)
- Yasuma Yoshizumi
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Hiroshi Yukawa
- †ImPACT Research Center for Innovative Nanobiodevices, Nagoya University, Chikusa-ku, Nagoya, Japan; ‡Department of Applied Chemistry, Nagoya University Graduate School of Engineering, Chikusa-ku, Nagoya, Japan
| | - Ryoji Iwaki
- § Kinuura-Tobu Health Care Center , Kariya , Japan
| | - Sanae Fujinaka
- ¶ Department of Clinical Laboratories, Aichi Cancer Center Hospital , Chikusa-ku, Nagoya , Japan
| | - Ayano Kanou
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Yuki Kanou
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Tatsuya Yamada
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Shingo Nakagawa
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Tomomi Ohara
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Kenta Nakagiri
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Yusuke Ogihara
- ‡ Department of Applied Chemistry, Nagoya University Graduate School of Engineering , Chikusa-ku, Nagoya , Japan
| | - Yoko Tsutsui
- † ImPACT Research Center for Innovative Nanobiodevices, Nagoya University , Chikusa-ku, Nagoya , Japan
| | - Yumi Hayashi
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
| | - Masatoshi Ishigami
- # Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine , Showa-ku, Nagoya , Japan
| | - Yoshinobu Baba
- †ImPACT Research Center for Innovative Nanobiodevices, Nagoya University, Chikusa-ku, Nagoya, Japan; ‡Department of Applied Chemistry, Nagoya University Graduate School of Engineering, Chikusa-ku, Nagoya, Japan
| | - Tetsuya Ishikawa
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine , Higashi-ku, Nagoya , Japan
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Abe J, Hori S, Sato M, Sekimoto H. Concanavalin A Disrupts the Release of Fibrous Material Necessary for Zygote Formation of a Unicellular Charophycean Alga, Closterium peracerosum-strigosum-littorale Complex. Front Plant Sci 2016; 7:1040. [PMID: 27468295 PMCID: PMC4942458 DOI: 10.3389/fpls.2016.01040] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/01/2016] [Indexed: 05/06/2023]
Abstract
The Closterium peracerosum-strigosum-littorale (C. psl.) complex is the best characterized charophycean alga with respect to the processes of sexual reproduction. We examined the effect of concanavalin A (Con A) on physiological and ultrastructural changes during the conjugation of the C. psl. complex. Two heterothallic gametangial cells formed a sexual pair as usual; however, the release of gametes was completely blocked by the addition of Con A. Fluorescein isothiocyanate-labeled Con A bound to the outermost layer of the conjugation papillae of paired cells. In the absence of Con A, the disruption of outer cell walls on the conjugation papillae and the secretion of fibrous materials from the conjugation papillae were observed using a transmission electron microscope, but Con A-treated cells did not show these changes. Instead, a highly electron-dense layer was observed in the outermost papillae, and the excess fibrous materials remained at the inside of the layer. These results suggest that an unknown molecule(s) recognized by Con A is essential for the diffusion of fibrous materials at the conjugation papillae, which is an indispensable step for gamete release during conjugation of the C. psl. complex.
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Affiliation(s)
- Jun Abe
- Department of Chemical and Biological Sciences, Faculty of Science, Japan Women’s University, TokyoJapan
- *Correspondence: Jun Abe, Hiroyuki Sekimoto,
| | - Sachie Hori
- Division of Material and Biological Sciences, Graduate School of Science, Japan Women’s University, TokyoJapan
| | - Mamiko Sato
- Laboratory of Electron Microscopy, Japan Women’s University, TokyoJapan
| | - Hiroyuki Sekimoto
- Department of Chemical and Biological Sciences, Faculty of Science, Japan Women’s University, TokyoJapan
- Division of Material and Biological Sciences, Graduate School of Science, Japan Women’s University, TokyoJapan
- *Correspondence: Jun Abe, Hiroyuki Sekimoto,
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Abstract
Concanavalin A is a legume lectin which preferentially agglutinates transformed cells and shows antitumor effects on human breast carcinoma cells in vitro and in vivo. It is considered as a new potential antineoplastic agent targeting apoptosis, autophagy, and anti-angiogenesis in preclinical or clinical trials for cancer therapeutics, which has recently become the object of intensive study. In the present investigation, we show the capacity of the lectin to bind manganese, gold, iron, and zinc porphyrins: all potential anticancer agents. The interaction of the legume lectin with the studied compounds has been investigated by tryptophan fluorescence, showing conformational changes within the quaternary and tertiary structures of the protein. The binding of Con A with manganese, gold, and iron porphyrins, as well as adenine, was studied by fluorescence quenching. In contrast, the interaction of Con A with zinc porphyrin caused an increase in Trp fluorescence and a red shift of 10 nm of the emission maximum position. However, the binding of Con A to iron porphyrin was accompanied by a 5 nm blue shift of the emission maximum, and a kD of 0.95 ± 0.13 μM was calculated, respectively. The sigmoidal shape of the curve showed cooperative interactions, which indicated the presence of more than one class of binding site within the Con A molecule for iron porphyrin, confirmed by the Hill slope (h = 1.89±0.46). We have found that the legume lectin interacts with porphyrins and adenine with an affinity (0.14–1.89 µM) similar to that of the non-legume lectin, wheat germ agglutinin. In conclusion, the protein Con A shows new binding activity towards porphyrins with anticancer activities and could find prospective application as a drug delivery molecule that specifically targets cancer cells.
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Affiliation(s)
- Vanya Petkova Bogoeva
- Institute of Molecular Biology "Roumen Tsanev", Bulgarian Academy of Sciences, "Acad. G. Bonchev" Str. Bl. 21, 1113, Sofia, Bulgaria
| | - Lidiya Plamenova Petrova
- Institute of Molecular Biology "Roumen Tsanev", Bulgarian Academy of Sciences, "Acad. G. Bonchev" Str. Bl. 21, 1113, Sofia, Bulgaria
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Roy B, Pattanaik AK, Das J, Bhutia SK, Behera B, Singh P, Maiti TK. Role of PI3K/Akt/mTOR and MEK/ERK pathway in Concanavalin A induced autophagy in HeLa cells. Chem Biol Interact 2014; 210:96-102. [PMID: 24434245 DOI: 10.1016/j.cbi.2014.01.003] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [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: 08/16/2013] [Revised: 12/13/2013] [Accepted: 01/07/2014] [Indexed: 12/31/2022]
Abstract
Concanavalin A (Con A), a mannose or glucose specific legume lectin, is well known for its anti-proliferative and cytotoxic effect on different types of cancer cells, through its binding to the membrane receptors leading to a major stimulus for the induction of distinct metabolic responses. Recently it has been also been proved that, Con A induces autophagy in hepatoma cells through internalization and mitochondria mediated pathway involving a mitochondrial interacting protein named Bcl2/E1B-19kDa protein-interacting protein 3 (BNIP3). Through this current endeavor, we propose a membrane associated pathway involved in Con A induced autophagy, taking Human cervical cancer (HeLa) cell as a cancer model. Here, we deciphered the role of membrane mediated phosphatidylinositol 3 kinase (PI3K)/Akt/mTOR (mammalian target of rapamycin) and MEK/Extracellular signal-regulated kinases (ERK) pathway in Con A induced autophagy in HeLa cells. Subsequently, we found that Con A treatment suppresses the PI3K/Akt/mTOR and up regulates the MEK/ERK pathway leading to the activation of autophagy. This study will further help us to understand the mechanism behind the autophagic pathway induced by Con A and simultaneously it will strengthen its effective use as a prospective cancer chemo-therapeutic.
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Affiliation(s)
- Bibhas Roy
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Arup K Pattanaik
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Joyjyoti Das
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sujit K Bhutia
- Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Birendra Behera
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Prashant Singh
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Tapas K Maiti
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
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