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Liu J, Zhang W, Jin S, Zhang H, Xu Y, Xiong P, Qin X, Jia B. Plant-derived inducers in tumor differentiation therapy:A systematic review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155749. [PMID: 38763009 DOI: 10.1016/j.phymed.2024.155749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 02/27/2024] [Accepted: 05/14/2024] [Indexed: 05/21/2024]
Abstract
BACKGROUND Differentiation therapy, a highly regarded treatment method in tumor research, aims to induce tumor cells to differentiate back to normal cells, deviating from the malignant pathway and returning to a benign state. Its development relies on the continuous discovery of efficient and low-toxic differentiation inducers, including plant-derived active components that offer significant biological utilization and therapeutic potential. For this reason, the exploration of plant-derived inducers, particularly in their application in differentiation therapy, holds great promise in advancing cancer treatment strategies toward more effective and safer alternatives. PURPOSE This paper aims to provide a valuable reference for researchers seeking to identify natural, efficient, and low-toxic differentiation inducers from plants and highlights a promising research direction for the application of differentiation therapy in malignant tumor treatment. METHODS For the collection of pertinent information, an extensive search was conducted across diverse literature and electronic databases, including PubMed, ScienceDirect, Wiley, ACS, CNKI, Springer, Taylor & Francis, Web of Science, Google Scholar, and Baidu Scholar. This comprehensive approach aimed to retrieve and include all relevant literature from 1985 to 2023. Primary keywords such as "Natural medicinal plant," "Differentiation therapy," and "Differentiation inducer" were utilized, supplemented by secondary search terms including "Cancer," "Tumor," "Herbal medicine," "Induced differentiation," and "Cancer treatment." RESULTS This study systematically evaluated the application of plant-derived inducers in tumor-induced differentiation therapy. Through extensive literature review, specific plant components with confirmed differentiation-inducing properties were identified. Furthermore, potential molecular mechanisms underlying this process were outlined, shedding light on the future development of differentiation therapy in cancer treatment. CONCLUSION Plant-derived active components exhibit substantial biological utility and therapeutic potential. Delving deeper into the research on these components as differentiation inducers holds promise for the selection of novel cancer drugs and the unveiling of novel pathways for cancer treatment. These results emphasize the importance of continued exploration and in-depth research into natural, efficient, and low-toxic differentiation inducers from plants, which could significantly advance cancer treatment strategies. Moreover, the highlighted research direction underscores the relevance of differentiation therapy in the context of malignant tumor treatment, indicating its potential as a safer and more effective alternative in cancer therapy.
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Affiliation(s)
- Junyu Liu
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Wei Zhang
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Shenrui Jin
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Hua Zhang
- Nanbu Hospital of County Chinese Medicine, Nanchong, Sichuan, 637399, China
| | - Yi Xu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Peiyu Xiong
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Xuhua Qin
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China.
| | - Bo Jia
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China.
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Silva de Carvalho V, Melo Lima KM, Calandrini de Azevedo LF, Panarra Ferreira Gomes das Neves PA, Borges RDS, Nagamachi CY, Pieczarka JC. New derivative of trans-dehydrocrotonin isolated from Croton cajucara shows reduced cytotoxic and genotoxic effects in hepatocellular carcinoma (HepG2) cell line. Toxicon 2022; 220:106940. [DOI: 10.1016/j.toxicon.2022.106940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/11/2022] [Accepted: 10/05/2022] [Indexed: 11/06/2022]
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Jünior SFP, Conserva LM, Filho JMB. Clerodane Diterpenes from Croton Species: Distribution and a Compilation of their 13C NMR Spectral Data. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0600100410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The present work is a review of the literature of clerodane diterpenes from Croton species. It contains a compilation of 13C NMR data of 83 of these diterpenoids and their biological activities. This review covers a period from 1969 to October 2005 and 224 references are cited.
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Affiliation(s)
| | - Lucia M. Conserva
- Departamento de Química, Universidade Federal de Alagoas, 57072-970, Maceió–AL, Brazil
| | - José Maria Barbosa Filho
- Laboratório de Tecnologia Farmacêutica, Universidade Federal da Paraíba, 58051-970, João Pessoa–PB, Brazil
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Du R, Liu J, Sun P, Li H, Wang J. Inhibitory effect and mechanism of Tagetes erecta L. fungicide on Fusarium oxysporum f. sp. niveum. Sci Rep 2017; 7:14442. [PMID: 29089546 PMCID: PMC5663927 DOI: 10.1038/s41598-017-14937-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 10/18/2017] [Indexed: 11/30/2022] Open
Abstract
Botanical fungicides comprise attractive alternatives to chemical fungicides because of their environmental compatibility. Flavonoids extracted from Tagetes erecta L. have an inhibitory effect on fusarium wilt in watermelons caused by Fusarium oxysporum f. sp. niveum (FON). In this study, we synthesized one of these flavonoids, 2,5-dicyclopentylidene cyclopentanone (Tagetes erecta L. fungicide (TEF)) and assessed its activity against FON. In vitro, TEF inhibited FON growth and killed FON cells directly. TEF also affected FON cell physiology and mycelial structure. In watermelon plants with fusarium wilt, TEF protected the leaf cell structure and improved the germination rate of infected seeds while increasing overall plant resistance. A TEF-resistant mutant (FONM) was created by chemical mutagenesis. FON and FONM were analysed using iTRAQ and RNA-Seq, which identified 422 differentially expressed proteins and 7817 differentially expressed mRNAs in the proteome and transcriptome, respectively. The FONM mutations caused changes in the cell membrane and cell wall, which may constitute the site of action of TEF. Together, these results demonstrate that TEF could effectively control the watermelon fusarium wilt caused by FON, possibly through the inhibition of sterol biosynthesis. The data presented here suggest that TEF represents a new potential botanical anti-fungal drug.
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Affiliation(s)
- Ruochen Du
- College of Animal Science and Veterinary Medicine, Shanxi Agriculture University, Taigu, Shanxi, 030801, P.R. China
| | - Jiandong Liu
- College of Life Science, Shanxi Agriculture University, Taigu, Shanxi, 030801, P.R. China
| | - Panpan Sun
- College of Animal Science and Veterinary Medicine, Shanxi Agriculture University, Taigu, Shanxi, 030801, P.R. China
| | - Hongquan Li
- College of Animal Science and Veterinary Medicine, Shanxi Agriculture University, Taigu, Shanxi, 030801, P.R. China.
| | - Jinsheng Wang
- College of Life Science, Shanxi Agriculture University, Taigu, Shanxi, 030801, P.R. China.
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Peng HY, Lin CC, Wang HY, Shih Y, Chou ST. The melanogenesis alteration effects of Achillea millefolium L. essential oil and linalyl acetate: involvement of oxidative stress and the JNK and ERK signaling pathways in melanoma cells. PLoS One 2014; 9:e95186. [PMID: 24743745 PMCID: PMC3990609 DOI: 10.1371/journal.pone.0095186] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Accepted: 03/24/2014] [Indexed: 01/16/2023] Open
Abstract
The mitogen-activated protein kinase (MAPK) family, including extracellular signal-regulated kinase (ERK)1/2, c-Jun N-terminal kinase (JNK)1/2 and p38 MAPK, is known to be activated by ultraviolet (UV) radiation in melanocytes to regulate melanin production. Reactive oxygen species (ROS) play important roles in the pathway of ERK and JNK activation. It has been established that the essential oil of Achillea millefolium L. (AM-EO) has activities that suppress the oxidative stress and inflammatory responses. Thus, we analyzed the effects of AM-EO on melanogenesis in melanocyte stimulating hormone (α-MSH) treated melanoma cells. The results demonstrated that AM-EO suppresses melanin production by decreasing tyrosinase activity through the regulation of the JNK and ERK signaling pathways. This effect might be associated with the AM-EO activity leading to the suppression of ROS, and linalyl acetate is its major functional component. Therefore, we propose that AM-EO has the potential to treat hyperpigmentation in the future.
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Affiliation(s)
- Hsin-Yi Peng
- Department of Food and Nutrition, Providence University, Taichung, Taiwan
| | - Chih-Chien Lin
- Department of Cosmetic Science, Providence University, Taichung, Taiwan
| | | | - Ying Shih
- Department of Cosmetic Science, Providence University, Taichung, Taiwan
- * E-mail: (S-TC); (YS)
| | - Su-Tze Chou
- Department of Food and Nutrition, Providence University, Taichung, Taiwan
- * E-mail: (S-TC); (YS)
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Chou ST, Peng HY, Hsu JC, Lin CC, Shih Y. Achillea millefolium L. essential oil inhibits LPS-induced oxidative stress and nitric oxide production in RAW 264.7 Macrophages. Int J Mol Sci 2013; 14:12978-93. [PMID: 23797659 PMCID: PMC3742169 DOI: 10.3390/ijms140712978] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 05/30/2013] [Accepted: 06/07/2013] [Indexed: 01/27/2023] Open
Abstract
Achillea millefolium L. is a member of the Asteraceae family and has been used in folk medicine in many countries. In this study, 19 compounds in A. millefolium essential oil (AM-EO) have been identified; the major components are artemisia ketone (14.92%), camphor (11.64%), linalyl acetate (11.51%) and 1,8-cineole (10.15%). AM-EO can suppress the inflammatory responses of lipopolysaccharides (LPS)-stimulated RAW 264.7 macrophages, including decreased levels of cellular nitric oxide (NO) and superoxide anion production, lipid peroxidation and glutathione (GSH) concentration. This antioxidant activity is not a result of increased superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) activities, but rather occurs as a result of the down-regulation of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and heme oxygenase-1 (HO-1) expression, thus reducing the inflammatory response. Therefore, AM-EO can be utilized in many applications, including the treatment of inflammatory diseases in the future.
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Affiliation(s)
- Su-Tze Chou
- Department of Food and Nutrition, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan; E-Mails: (S.-T.C.); (H.-Y.P.)
| | - Hsin-Yi Peng
- Department of Food and Nutrition, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan; E-Mails: (S.-T.C.); (H.-Y.P.)
| | - Jaw-Cherng Hsu
- Department of Applied Cosmetology, Hung Kuang University, 1018, Sec. 6, Taiwan Boulevard, Shalu Dist., Taichung 43302, Taiwan; E-Mail:
| | - Chih-Chien Lin
- Department of Cosmetic Science, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan
- Authors to whom correspondence should be addressed; E-Mails: (C.-C.L.); (Y.S.); Tel.: +886-4-2632-8001 (ext. 15409) (C.-C.L.); +886-4-2632-8001 (ext. 15470) (Y.S.); Fax: +886-4-2631-1167 (C.-C.L. & Y.S.)
| | - Ying Shih
- Department of Cosmetic Science, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan
- Authors to whom correspondence should be addressed; E-Mails: (C.-C.L.); (Y.S.); Tel.: +886-4-2632-8001 (ext. 15409) (C.-C.L.); +886-4-2632-8001 (ext. 15470) (Y.S.); Fax: +886-4-2631-1167 (C.-C.L. & Y.S.)
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Chou ST, Lai CP, Lin CC, Shih Y. Study of the chemical composition, antioxidant activity and anti-inflammatory activity of essential oil from Vetiveria zizanioides. Food Chem 2012. [DOI: 10.1016/j.foodchem.2012.02.131] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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8
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Wu Y, Xu Y, Shen Y, Wang C, Guo G, Hu T. Tetramethylpyrazine potentiates arsenic trioxide activity against HL-60 cell lines. Braz J Med Biol Res 2012; 45:187-96. [PMID: 22331136 DOI: 10.1590/s0100-879x2012007500017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Accepted: 01/19/2012] [Indexed: 02/01/2023] Open
Abstract
The objective of this study was to evaluate the effects of tetramethylpyrazine (TMP) in combination with arsenic trioxide (As2O3) on the proliferation and differentiation of HL-60 cells. The HL-60 cells were treated with 300 µg/mL TMP, 0.5 µM As2O3, and 300 µg/mL TMP combined with 0.5 µM As2O3, respectively. The proliferative inhibition rates were determined with MTT. Differentiation was detected by the nitroblue tetrazolium (NBT) reduction test, Wright's staining and the distribution of CD11b and CD14. Flow cytometry was used to analyze cell cycle distribution. RT-PCR and Western blot assays were employed to detect the expressions of c-myc, p27, CDK2, and cyclin E1. Combination treatment had synergistic effects on the proliferative inhibition rates. The rates were increased gradually after the combination treatment, much higher than those treated with the corresponding concentration of As2O3 alone. The cells exhibited characteristics of mature granulocytes and a higher NBT-reducing ability, being a 2.6-fold increase in the rate of NBT-positive ratio of HL-60 cells within the As2O3 treatment versus almost a 13-fold increase in the TMP + As2O3 group. Cells treated with both TMP and As2O3 expressed far more CD11b antigens, almost 2-fold compared with the control group. Small doses of TMP potentiate As2O3-induced differentiation of HL-60 cells, possibly by regulating the expression and activity of G0/G1 phase-arresting molecules. Combination treatment of TMP with As2O3 has significant synergistic effects on the proliferative inhibition of HL-60 cells.
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Affiliation(s)
- Yuni Wu
- Key Laboratory of Developmental Diseases in Childhood, Department of Hematology, Affiliated Children’s Hospital, Chongqing Medical University, No. 136 Zhongshan 2nd Road, Yuzhong District, Chongqing, China.
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Chung JG, Peng HY, Chu YC, Hsieh YM, Wang SD, Chou ST. Anti-invasion and apoptosis induction of chlorella (Chlorella sorokiniana) in Hep G2 human hepatocellular carcinoma cells. J Funct Foods 2012. [DOI: 10.1016/j.jff.2011.12.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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10
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PMS-1077, a PAF antagonist, induced differentiation of HL-60 cells with its novel activity. Cell Biol Int 2010; 34:1227-30. [DOI: 10.1042/cbi20100168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zambuzzi WF, Milani R, Teti A. Expanding the role of Src and protein-tyrosine phosphatases balance in modulating osteoblast metabolism: lessons from mice. Biochimie 2010; 92:327-32. [PMID: 20083150 DOI: 10.1016/j.biochi.2010.01.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Accepted: 01/06/2010] [Indexed: 10/20/2022]
Abstract
The widespread nature of protein phosphorylation/dephosphorylation underscores its key role in cell signaling metabolism, growth and differentiation. Tyrosine phosphorylation of cytoplasmic proteins is a critical event in the regulation of intracellular signaling pathways activated by external stimuli. An adequate balance in protein phosphorylation is a major factor in the regulation of osteoclast and osteoblast activities involved in bone metabolism. However, although phosphorylation is widely recognized as an important regulatory pathway in skeletal development and maintenance, the mechanisms involved are not fully understood. Among the putative protein-tyrosine kinases (ptk) and protein-tyrosine phosphatases (ptp) involved in this phenomenon there is increasing evidence that Src and low molecular weight-ptps play a central role in a range of osteoblast activities, from adhesion to differentiation. A role for Src in bone metabolism was first demonstrated in Src-deficient mice and has since been confirmed using low molecular weight Src inhibitors in animal models of osteoporosis. Several studies have shown that Src is important for cellular proliferation, adhesion and motility. In contrast, few studies have assessed the importance of the ptk/ptp balance in driving osteoblast metabolism. In this review, we summarize our current knowledge of the functional importance of the ptk/ptp balance in osteoblast metabolism, and highlight directions for future research that should improve our understanding of these critical signaling molecules.
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Affiliation(s)
- Willian F Zambuzzi
- Department of Biochemistry, University of Campinas, Campinas, SP, Brazil.
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Xing ML, Wang XF, Zhu X, Zhou XD, Xu LH. Morphological and biochemical changes associated with apoptosis induced by okadaic acid in human amniotic FL cells. ENVIRONMENTAL TOXICOLOGY 2009; 24:437-445. [PMID: 18937299 DOI: 10.1002/tox.20446] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The marine toxin okadaic acid (OA) is an apoptosis inducer and a tumor promoter. During recent years, extensive studies have demonstrated that OA can induce apoptosis in a wide variety of cell types. In contrast to the relatively longer incubation time or higher treatment concentrations of OA in apoptosis shown previously, relatively lower concentrations (<or=100 nM) and shorter time (4 h) were designed in the current study to observe the toxic effects of OA in human amniotic cells (FL cells). The present study was undertaken to determine the morphological and biochemical changes of FL cells induced by OA. Results indicated that externalization of phosphatidylserine, cytoskeletal disruption, DNA strand breaks and decrease of Bcl-2 protein expression levels as well as increase of PP2A-A subunit protein were all involved in the apoptosis of FL cells induced by OA. This work not only provided further evidence of apoptosis induced by OA but also suggested that PP2A might play a pivotal role in apoptosis induced by protein phosphatases inhibitors.
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Affiliation(s)
- Ming-luan Xing
- Department of Biochemistry and Genetics, School of Medicine, Zhejiang University, Hangzhou 310058, China
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Poersch A, dos Santos FV, Maciel MAM, de Câmara JKP, de Castro Dantas TN, de Syllos Cólus IM. Protective effect of DCTN (trans-dehydrocrotonin) against induction of micronuclei and apoptosis by different mutagenic agents in vitro. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2007; 629:14-23. [PMID: 17276134 DOI: 10.1016/j.mrgentox.2007.01.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2005] [Revised: 12/14/2006] [Accepted: 01/02/2007] [Indexed: 11/27/2022]
Abstract
The use of medicinal plants to combat diseases has increased in the last years despite the little information available with regard to the possible health risks they represent. The aim of the present study was to determine in vitro the possible clastogenic, apoptotic and cytotoxic effects of the active principle of Croton cajucara, trans-dehydrocrotonin (DCTN), and determine its protective effect against three mutagenic agents using the micronucleus test (MN) and apoptosis index in CHO-K1 cells. Three DNA damage inducing agents were utilized in the clastogenicity and anticlastogenicity tests (methylmethane sulfonate (MMS), mitomycin C (MMC) and doxorubicin (DXR); a negative control (PBS) and solvent control were also included. DCTN at concentrations of 400, 320, 240, 160 and 80microM did not show clastogenic activity in cultured CHO-K1 cells in the micronucleus test, did not induce apoptosis and showed negligible cytotoxicity in all cases. DCTN at concentrations of 240 and 400microM was tested for protective activity using three treatment protocols in relation to positive controls: pre-treatment, simultaneous treatment and post-treatment. The micronucleus test showed a protective effect for DCTN which varied among the different treatment protocols and with regard to the different DNA damage inducing agents. In the apoptosis test, DCTN was seen to have a protective effect under the following conditions: (I) at both concentrations in relation to MMS, in all three treatment protocols; (II) at both concentrations against damage caused by MMC with pre-treatment and at the higher concentration with simultaneous treatment; (III) at both concentrations against DXR with simultaneous treatment. Therefore, DCTN itself is not a clastogenic or cytotoxic substance, and does not induce apoptosis the in vitro system used. These results together with findings reported for DCTN in vivo, support the indication of this active principle at these concentrations for therapeutic use.
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Affiliation(s)
- Aline Poersch
- Departamento de Biologia Geral, CCB, Centro de Ciências Biológicas, Universidade Estadual de Londrina (UEL), Campus Universitário, CEP 86051.970 - Londrina (PR), Brazil
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Luo LY, Huang J, Gou BD, Zhang TL, Wang K. Induction of human promyelocytic leukemia HL-60 cell differentiation into monocytes by arsenic sulphide: Involvement of serine/threonine protein phosphatases. Leuk Res 2006; 30:1399-405. [PMID: 16650894 DOI: 10.1016/j.leukres.2006.03.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2005] [Revised: 03/13/2006] [Accepted: 03/13/2006] [Indexed: 10/24/2022]
Abstract
The clinical efficacy of arsenic sulfide (As(4)S(4)), also known as realgar, in the treatment of leukemia in China is prompting people to explore the underlying mechanism. We examined the realgar-induced differentiation in human promyelocytic leukemia cell line HL-60. Cells exhibited proliferation inhibition when treated with 0.10-1.5 microM of realgar, and underwent monocytic differentiation as indicated by morphological changes, NBT reduction assay, and cytofluorometric analyses of the cell surface antigens, CD11b and CD14. Accompanying the differentiation, the activity of serine/threonine protein phosphatase type 1 (PP1) and type 2A (PP2A) were enhanced, whereas the activity of PP2B remained virtually the same compared to the control. When cells were treated with realgar in the presence of an inhibitor of PP1 and 2A or an inhibitor of PP2B, the differentiation of the cells was partially suppressed as revealed by NBT reduction assay and the expression of CD14. Our data demonstrate that realgar induces monocytic differentiation in HL-60 cells and that some serine/threonine protein phosphatases may be involved in the process.
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Affiliation(s)
- Li-Yun Luo
- Department of Chemical Biology, Peking University School of Pharmaceutical Sciences, 38 Xue Yuan Road, Beijing 100083, PR China
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Yu Z, Yang X, Wang K. Metal ions induced heat shock protein response by elevating superoxide anion level in HeLa cells transformed by HSE-SEAP reporter gene. Toxicology 2006; 223:1-8. [PMID: 16595161 DOI: 10.1016/j.tox.2006.02.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2005] [Revised: 02/24/2006] [Accepted: 02/27/2006] [Indexed: 10/24/2022]
Abstract
The aim of this work is to define the relationship between heat shock protein (HSP) and reactive oxygen species (ROS) in the cells exposed to different concentrations of metal ions, and to evaluate a new method for tracing the dynamic levels of cellular reactive oxygen species using a HSE-SEAP reporter gene. The expression of heat shock protein was measured using a secreted alkaline phosphatase (SEAP) reporter gene transformed into HeLa cell strain, the levels of superoxide anion (O(2)(-)) and hydrogen peroxide (H(2)O(2)) were determined by NBT reduction assay and DCFH staining flow cytometry (FCM), respectively. The experimental results demonstrated that the expression of heat shock protein induced by metal ions was linearly related to the cellular superoxide anion level before cytotoxic effects were observed, but not related to the cellular hydrogen peroxide level. The experimental results suggested that metal ions might induce heat shock protein by elevating cellular superoxide anion level, and thus the expression of heat shock protein indicated by the HSE-SEAP reporter gene can be an effective model for monitoring the dynamic level of superoxide anion and early metal-induced oxidative stress/cytotoxicity.
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Affiliation(s)
- Zhanjiang Yu
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100083, PR China
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Anazetti MC, Melo PS, Durán N, Haun M. Dehydrocrotonin and its derivative, dimethylamide-crotonin induce apoptosis with lipid peroxidation and activation of caspases-2, -6 and -9 in human leukemic cells HL60. Toxicology 2004; 203:123-37. [PMID: 15363588 DOI: 10.1016/j.tox.2004.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2003] [Revised: 06/03/2004] [Accepted: 06/04/2004] [Indexed: 11/30/2022]
Abstract
A variety of stimuli can induce cells to undergo apoptosis, with one of the most reproducible inducers being mild oxidative stress following exposure to anticancer agents. Apoptosis involves events mediated by cysteine proteases (caspases) that are classified as initiators (-8, -9 and -12) or executors (-2, -3, -6 and -7). In this study, we examined the mechanisms of apoptosis induced by dehydrocrotonin (DHC), a diterpene lactone isolated from the Amazonian plant Croton cajucara, and its synthetic derivative, dimethylamide-crotonin (DCR), in human HL60 promyelocytic leukemia cells. Flow cytometric analysis of HL60 cells after treatment for 72 h showed that DCR- and DHC-induced apoptosis, with maximum cell death at a concentration of 250 microM for both compounds. DCR and DHC were effective in triggering the activation of caspases-2, -6 and -9. The level of reduced glutathione (GSH) decreased, whereas there was an increase in thiobarbituric acid-reactive substance (TBARS) production and in mitochondrial swelling. These effects on mitochondrial swelling, GSH content and lipid peroxidation were abolished by cyclosporine A, an inhibitor of the membrane permeability transition. The cytotoxicity of DHC and DCR was prevented by a high concentration of GSH (15 mM) in the culture medium. These results indicate that DCR and DHC produced apoptosis partly by oxidative stress-induced lipid peroxidation, which triggered the caspase cascade, that lead to apoptotic cell death in HL60 cells. Based on the pattern of caspase activation, on the increase in mitochondrial swelling and on the inhibitory action of cyclosporine A, we conclude that DCR and DHC triggered apoptosis in HL60 cells probably through cytochrome c release and apoptosome formation.
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Affiliation(s)
- Maristella C Anazetti
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas, CP 6109, SP, 13083-970, Brazil
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Anazetti MC, Melo PS, Durán N, Haun M. Comparative cytotoxicity of dimethylamide-crotonin in the promyelocytic leukemia cell line (HL60) and human peripheral blood mononuclear cells. Toxicology 2003; 188:261-74. [PMID: 12767696 DOI: 10.1016/s0300-483x(03)00089-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Dehydrocrotonin (DHC) is a diterpene lactone obtained from Croton cajucara (Sacaca). Dimethylamide-crotonin (DCR), a DHC derivative, has a similar inhibitory effect on leukemic HL60 cells than its parent compound evaluated by different endpoints of cytotoxicity. No cytotoxicity or morphological alterations associated with apoptosis were detected in human peripheral blood mononuclear cells (PBMC) after treatment with up to 400 micro M DCR in presence of phytohemaglutinin (5 micro g/ml). Based on morphological changes and the pattern of DNA fragmentation, DHC and DCR were found to induce apoptosis and terminal differentiation (assessed by nitro blue tetrazolium reduction) in HL60 cells, but these compounds did not show any toxic effect in PBMC. Thus, DCR and DHC inhibit HL60 cell growth in vitro partly by inducing apoptosis and cell differentiation, but does not cause serious damage to immune cells according to our experimental conditions.
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Affiliation(s)
- Maristella Conte Anazetti
- Departamento de Bioqui;mica, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109, Campinas, SP, 13083-970, Brazil
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