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Bandyopadhayaya S, Yadav P, Sharma A, Dey SK, Nag A, Maheshwari R, Ford BM, Mandal CC. Oncogenic role of an uncharacterized cold-induced zinc finger protein 726 in breast cancer. J Cell Biochem 2023. [PMID: 37192271 DOI: 10.1002/jcb.30417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/29/2023] [Accepted: 04/18/2023] [Indexed: 05/18/2023]
Abstract
The unobtrusive cold environmental temperature can be linked to the development of cancer. This study, for the first time, envisaged cold stress-mediated induction of a zinc finger protein 726 (ZNF726) in breast cancer. However, the role of ZNF726 in tumorigenesis has not been defined. This study investigated the putative role of ZNF726 in breast cancer tumorigenic potency. Gene expression analysis using multifactorial cancer databases predicted overexpression of ZNF726 in various cancers, including breast cancer. Experimental observations found that malignant breast tissues and highly aggressive MDA-MB-231 cells showed an elevated ZNF726 expression as compared to benign and luminal A type (MCF-7), respectively. Furthermore, ZNF726 silencing decreased breast cancer cell proliferation, epithelial-mesenchymal transition, and invasion accompanied by the inhibition of colony-forming ability. Concordantly, ZNF726 overexpression significantly demonstrated opposite outcomes than ZNF726 knockdown. Taken together, our findings propose cold-inducible ZNF726 as a functional oncogene demonstrating its prominent role in facilitating breast tumorigenesis. An inverse correlation between environmental temperature and total serum cholesterol was observed in the previous study. Furthermore, experimental outcomes illustrate that cold stress elevated cholesterol content hinting at the involvement of the cholesterol regulatory pathway in cold-induced ZNF726 gene regulation. This observation was bolstered by a positive correlation between the expression of cholesterol-regulatory genes and ZNF726. Exogenous cholesterol treatment elevated ZNF726 transcript levels while knockdown of ZNF726 decreased the cholesterol content via downregulating various cholesterol regulatory gene expressions (e.g., SREBF1/2, HMGCoR, LDLR). Moreover, an underlying mechanism supporting cold-driven tumorigenesis is proposed through interdependent regulation of cholesterol regulatory pathway and cold-inducible ZNF726 expression.
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Affiliation(s)
- Shreetama Bandyopadhayaya
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer, Rajasthan, India
| | - Pooja Yadav
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer, Rajasthan, India
| | - Ankit Sharma
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer, Rajasthan, India
| | - Sanjay Kumar Dey
- Dr. B. R. Ambedkar Centre for Biomedical Research (ACBR), University of Delhi, Delhi, India
| | - Alo Nag
- Department of Biochemistry, University of Delhi South Campus, New Delhi, India
| | - Rekha Maheshwari
- Department of General Surgery, JLN Medical College, Ajmer, Rajasthan, India
| | - Bridget M Ford
- Department of Biology, University of the Incarnate Word, San Antonio, Texas, USA
| | - Chandi C Mandal
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer, Rajasthan, India
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Tumor Necrosis Factor Alpha: Implications of Anesthesia on Cancers. Cancers (Basel) 2023; 15:cancers15030739. [PMID: 36765695 PMCID: PMC9913216 DOI: 10.3390/cancers15030739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/27/2023] Open
Abstract
Cancer remains a major public health issue and a leading cause of death worldwide. Despite advancements in chemotherapy, radiation therapy, and immunotherapy, surgery is the mainstay of cancer treatment for solid tumors. However, tumor cells are known to disseminate into the vascular and lymphatic systems during surgical manipulation. Additionally, surgery-induced stress responses can produce an immunosuppressive environment that is favorable for cancer relapse. Up to 90% of cancer-related deaths are the result of metastatic disease after surgical resection. Emerging evidence shows that the interactions between tumor cells and the tumor microenvironment (TME) not only play decisive roles in tumor initiation, progression, and metastasis but also have profound effects on therapeutic efficacy. Tumor necrosis factor alpha (TNF-α), a pleiotropic cytokine contributing to both physiological and pathological processes, is one of the main mediators of inflammation-associated carcinogenesis in the TME. Because TNF-α signaling may modulate the course of cancer, it can be therapeutically targeted to ameliorate clinical outcomes. As the incidence of cancer continues to grow, approximately 80% of cancer patients require anesthesia during cancer care for diagnostic, therapeutic, or palliative procedures, and over 60% of cancer patients receive anesthesia for primary surgical resection. Numerous studies have demonstrated that perioperative management, including surgical manipulation, anesthetics/analgesics, and other supportive care, may alter the TME and cancer progression by affecting inflammatory or immune responses during cancer surgery, but the literature about the impact of anesthesia on the TNF-α production and cancer progression is limited. Therefore, this review summarizes the current knowledge of the implications of anesthesia on cancers from the insights of TNF-α release and provides future anesthetic strategies for improving oncological survival.
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Chen X, Yao J, Zhang MY, Li R, Liu X, Qu YQ. IDO1 Promotes the Progression of NSCLC by Regulating the Polarization of M2 Macrophages. Int J Gen Med 2023; 16:1713-1733. [PMID: 37187591 PMCID: PMC10178912 DOI: 10.2147/ijgm.s398908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 05/02/2023] [Indexed: 05/17/2023] Open
Abstract
Purpose Non-small cell lung cancer (NSCLC) is currently a problem in the clinic and in society. Tumor-related macrophages (TAMs) in the tumor microenvironment (TME) play a vital role in the development of NSCLC. Patients and Methods Bioinformatics was used to analyze the role of Indoleamine 2,3-dioxygenase 1 (IDO1) in NSCLC and the correlation of its expression with CD163 expression. The expression of CD163 and IDO1 was measured by immunohistochemistry, and their colocalization was assessed by immunofluorescence. M2 macrophage polarization was induced, and a coculture model of NSCLC cells and macrophages was established. Results Bioinformatics analysis showed that IDO1 promoted the metastasis and differentiation of NSCLC and inhibited DNA repair. Moreover, the expression of IDO1 was positively correlated with CD163 expression. We discovered that IDO1 expression was related to M2 macrophage differentiation. In vitro, we showed that increased IDO1 expression promoted the invasion, proliferation, and metastasis of NSCLC cells. Conclusion In conclusion, we determined that IDO1 can regulate the M2 polarization of TAMs and promote the progression of NSCLC, which provides partial theoretical evidence for the use of IDO1 inhibitors in the treatment of NSCLC.
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Affiliation(s)
- Xiao Chen
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
- Department of Respiratory Medicine, Tai’an City Central Hospital, Tai’an, People’s Republic of China
| | - Jie Yao
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Meng-Yu Zhang
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Rui Li
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Xiao Liu
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
| | - Yi-Qing Qu
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, People’s Republic of China
- Correspondence: Yi-Qing Qu, Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Wenhuaxi Road 107#, Jinan, 250012, People’s Republic of China, Tel +86 531 8216 9335, Fax +86 531 8296 7544, Email
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Lemecha M, Chalise JP, Takamuku Y, Zhang G, Yamakawa T, Larson G, Itakura K. Lcn2 mediates adipocyte-muscle-tumor communication and hypothermia in pancreatic cancer cachexia. Mol Metab 2022; 66:101612. [PMID: 36243318 PMCID: PMC9596731 DOI: 10.1016/j.molmet.2022.101612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/22/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Adipose tissue is the largest endocrine organ. When activated by cancer cells, adipocytes secrete adipocytokines and release fatty acids, which are then transferred to cancer cells and used for structural and biochemical support. How this metabolic symbiosis between cancer cells and adipocytes affects skeletal muscle and thermogenesis during cancer cachexia is unknown. Cancer cachexia is a multiorgan syndrome and how the communication between tissues is established has yet to be determined. We investigated adipose tissue secretory factors and explored their role in crosstalk of adipocytes, muscle, and tumor during pancreatic cancer cachexia. METHODS We used a pancreatic cancer cachexia mouse model generated by syngenic implantation of pancreatic ductal adenocarcinoma (PDAC) cells (KPC) intraperitoneally into C57BL/6 mice and Lcn2-knockout mice. For in vitro studies, adipocytes (3T3-L1 and primary adipocytes), cachectic cancer cells (Panc0203), non-cachectic cancer cells (Du145 cells), and skeletal muscle cells (C2C12 myoblasts) were used. RESULTS To identify molecules involved in the crosstalk of adipose tissue with muscle and tumors, we treated 3T3-L1 adipocytes with conditioned medium (CM) from cancer cells. Upon screening the secretomes from PDAC-induced adipocytes, several adipocytokines were identified, including lipocalin 2 (Lcn2). We investigated Lcn2 as a potential mediator of cachexia induced by adipocytes in response to PDAC. During tumor progression, mice exhibited a decline in body weight gain, which was accompanied by loss of adipose and muscle tissues. Tumor-harboring mice developed drastic hypothermia because of a dramatic loss of fat in brown adipose tissue (BAT) and suppression of the thermogenesis pathway. We inhibited Lcn2 with an anti-Lcn2 antibody neutralization or genomic ablation in mice. Lcn2 deficiency significantly improved body temperature in tumor-bearing mice, which was supported by the increased expression of Ucp1 and β3-adrenergic receptor in BAT. In addition, Lcn2 inhibition abrogated the loss of fat and muscle in tumor-bearing mice. In contrast to tumor-bearing WT mice, the corresponding Lcn2-knockout mice showed reduced ATGL expression in iWAT and decreased the expression of muscle atrophy molecular markers MuRF-1 and Fbx32. CONCLUSIONS This study showed that Lcn2 is causally involved in the dysregulation of adipose tissue-muscle-tumor crosstalk during pancreatic cancer cachexia. Therapeutic targets that suppress Lcn2 may minimize the progression of cachexia.
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Affiliation(s)
- Mengistu Lemecha
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA,Corresponding author. Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope 1500 E Duarte Rd, Duarte, CA 91010, USA.
| | - Jaya Prakash Chalise
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Yuki Takamuku
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA,Department of Central Research Institute, Wakunaga Pharmaceutical Co., Ltd., Akitakata, Hiroshima, Japan
| | - Guoxiang Zhang
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Takahiro Yamakawa
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Garrett Larson
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Keiichi Itakura
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
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Macrophage Stimulated by Low Ambient Temperature Hasten Tumor Growth via Glutamine Production. Biomedicines 2020; 8:biomedicines8100381. [PMID: 32993179 PMCID: PMC7600495 DOI: 10.3390/biomedicines8100381] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/08/2020] [Accepted: 09/24/2020] [Indexed: 12/25/2022] Open
Abstract
Ambient temperature can regulate the immune response and affect tumor growth. Although thermoneutral caging reduces tumor growth via immune activation, little attention has been paid to the tumorigenic effect of low temperature. In the present study, tumor growth was higher at low ambient temperature (4 °C for 8 h/d) than at the standard housing temperature (22 °C) in allograft models. Low temperature-stimulated tumor growth in mice was reduced by monocyte depletion using clodronate liposomes. Proliferation was considerably greater in cancer cells treated with 33 °C-cultured RAW264.7 cell-conditioned media (33CM) than in cells treated with 37 °C-cultured RAW264.7 cell-conditioned media (37CM). Additionally, glutamine levels were markedly higher in 33CM-treated cells than in 37CM-treated cells. We further confirmed that the addition of glutamine into 37CM enhanced its effects on cancer cell proliferation and glutamine uptake inhibition ameliorated the accelerated proliferation induced by 33CM. Consistently, the inhibition of glutamine uptake in the allograft model exposed to low temperature, effectively reduced tumor volume and weight. Collectively, these data suggest that the secretion and utilization of glutamine by macrophages and cancer cells, respectively, are key regulators of low temperature-enhanced cancer progression in the tumor microenvironment.
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Bandyopadhayaya S, Ford B, Mandal CC. Cold-hearted: A case for cold stress in cancer risk. J Therm Biol 2020; 91:102608. [PMID: 32716858 DOI: 10.1016/j.jtherbio.2020.102608] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/25/2020] [Accepted: 04/25/2020] [Indexed: 02/07/2023]
Abstract
A negative correlation exists between environmental temperature and cancer risk based on both epidemiological and statistical analyses. Previously, cold stress was reported to be an effective cause of tumorigenesis. Several studies have demonstrated that cold temperature serves as a potential risk factor in cancer development. Most recently, a link was demonstrated between the effects of extreme cold climate on cancer incidence, pinpointing its impact on tumour suppressor genes by causing mutation. The underlying mechanism behind cold stress and its association with tumorigenesis is not well understood. Hence, this review intends to shed light on the role of associated factors, genetic and/or non-genetic, which are modulated by cold temperature, and eventually influence tumorigenic potential. While scrutinizing the effect of cold exposure on the body, the expression of certain genes, e.g. uncoupled proteins and heat-shock proteins, were elevated. Biological chemicals such as norepinephrine, thyroxine, and cholesterol were also elevated. Brown adipose tissue, which plays an essential role in thermogenesis, displayed enhanced activity upon cold exposure. Adaptive measures are utilized by the body to tolerate the cold, and in doing so, invites both epigenetic and genetic changes. Unknowingly, these adaptive strategies give rise to a lethal outcome i.e., genesis of cancer. Concisely, this review attempts to draw a link between cold stress, genetic and epigenetic changes, and tumorigenesis and aspires to ascertain the mechanism behind cold temperature-mediated cancer risk.
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Affiliation(s)
| | - Bridget Ford
- Department of Biology, University of the Incarnate Word, San Antonio, TX, 78209, USA
| | - Chandi C Mandal
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, 305817, India.
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Watanabe J, Kagami N, Kawazoe M, Arata S. A simplified enriched environment increases body temperature and suppresses cancer progression in mice. Exp Anim 2019; 69:207-218. [PMID: 31852850 PMCID: PMC7220712 DOI: 10.1538/expanim.19-0099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Mice housed in an enriched environment (EE) have inhibited tumor development because of
eustress (positive stress) stimulation. However, the mechanisms underlying increased
cancer resistance in EEs remain unclear; this may be due to poor reproducibility of the
results because of the complicated EE assembly requirements. In this study, we examined
the effects of a simplified EE (sEE) model, consisting only of a nesting shelter and a
running wheel, on cancer development in mice. We found that, similar to the complex EE,
the sEE promoted motor function and alleviated anxiety in mice. Moreover, the mice housed
in the sEE showed inhibited tumor growth and metastasis in addition to a higher average
body temperature (especially at the point of transition from light to darkness).
Furthermore, mice in the sEE had a decreased brown adipose tissue (BAT) mass, with a
significant upregulation of the Ucp1 and Adrb3 genes
(which encode uncoupling protein 1 and β-adrenergic receptor, respectively) observed in
the BAT at the point of transition from light to darkness. An antibody against the immune
checkpoint protein programmed cell death 1 was also found to have an additive effect with
the sEE against tumor development. Our findings indicate that the established sEE model
may be a useful tool for studying the antitumor effects of eustress and can potentially
introduce new avenues for cancer prevention and treatment.
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Affiliation(s)
- Jun Watanabe
- Center for Biotechnology, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Tokyo, Japan.,Center for Laboratory Animal Science, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Nobuyuki Kagami
- Center for Laboratory Animal Science, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Mamiko Kawazoe
- Center for Laboratory Animal Science, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Satoru Arata
- Center for Biotechnology, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Tokyo, Japan.,Center for Laboratory Animal Science, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.,Department of Biochemistry, Faculty of Arts and Sciences, Showa University, 4562 Kamiyoshida, Fujiyoshida-shi, Yamanashi 403-0005, Japan
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Subbarayan K, Seliger B. Tumor-dependent Effects of Proteoglycans and Various Glycosaminoglycan Synthesizing Enzymes and Sulfotransferases on Patients’ Outcome. Curr Cancer Drug Targets 2019; 19:210-221. [DOI: 10.2174/1568009618666180706165845] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 05/31/2018] [Accepted: 06/13/2018] [Indexed: 12/11/2022]
Abstract
Background: The small leucine-rich proteoglycans (SLRPs) biglycan (BGN) and decorin (DCN) linked with sulfated glycosaminoglycan (GAG) chains exhibit oncogenic or tumor suppressive potentials depending on the cellular context and association with GAGs. </P><P> Objective: We hypothesized that structural alterations and expression levels of BGN, DCN and their associated chondroitin sulfate (CS) polymerizing enzymes, dermatan sulfate (DS) epimerases and various sulfatases might be correlated with the tumor (sub)type and patients’ survival. </P><P> Methods: We acquired breast cancer (BC) and glioma patients’ datasets from cBioPortal and R2 Genomics. Structural alterations and the expression pattern of CS polymerizing enzymes, DS epimerases and carbohydrate sulfotransferases (CHST) were compared to that of BGN and DCN and correlated to their clinical relevance. </P><P> Results: In BC, no mutations, but amplifications (0.2 – 2.1 %) and deletions (0.05 – 0.4 %) were found in BGN, DCN and CS/DS enzymes. In contrast, missense and/or truncated mutations (0.1 – 0.5 %), but a reduced amplification rate (0 – 1.5 %) were found in glioma. When compared to BC, the structural abnormalities caused altered mRNA expression levels of BGN, DCN, GAG synthesizing enzymes and CHST. Mutations in SLPRs, CHSY1, CHST4 and CHSY3 were correlated with a poor prognosis in glioma, while lack of mutations and copy number variations in the SLRPs, CHSY3, CHST15 and DSE displayed an increased survival in BC. </P><P> Conclusion: A distinct association of BGN and DCN with CHST, CS polymerizing enzymes and DS epimerases was found in BC and glioma. Thus, a unique pattern of structural alterations and expression, which has clinical relevance, was found for PGs and GAG synthesizing enzymes and CHST in BC and glioma, which might help to identify high-risk patients and to develop personalized therapeutics.
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Affiliation(s)
- Karthikeyan Subbarayan
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, 06112 Halle/ Saale, Germany
| | - Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, 06112 Halle/ Saale, Germany
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OCF can repress tumor metastasis by inhibiting epithelial-mesenchymal transition involved in PTEN/PI3K/AKT pathway in lung cancer cells. PLoS One 2017; 12:e0174021. [PMID: 28301605 PMCID: PMC5354425 DOI: 10.1371/journal.pone.0174021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 03/02/2017] [Indexed: 01/31/2023] Open
Abstract
A component formula with definite compositions provides a new approach to treat various diseases. Salvia miltiorrhiza and Panax ginseng are widely used in China because of their antitumor properties. In the previous study, the optimizing component formula (OCF), prepared with salvianolic acids, ginsenosides, and ginseng polysaccharides (5, 10, and 5 mg·L−1, respectively) extracted from S. miltiorrhiza and P. ginseng on the basis of IC50 in lung cancer A549 cells and damage minimization on human bronchial epithelial cells in vitro. Currently, we also have demonstrated the inhibitory effect of OCF on A549 cell migration and invasion in vitro. According to Lewis lung cancer cells (LLC) allograft in C57BL/6 mice and A549 xenograft in nude mice experiment, we found that the anti-tumor and anti-metastasis effects of OCF treatment were related to the inhibition of epithelial–mesenchymal transition (EMT). Further studies showed that the inhibitory effect of OCF on EMT was associated with the PTEN/PI3K/AKT pathway. Therefore, all studies revealed that OCF could prevent cancer progression and tumor metastasis by inhibiting EMT involved PTEN/PI3K/AKT signaling pathway in lung cancer cells.
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Continuous intake of the Chaga mushroom (Inonotus obliquus) aqueous extract suppresses cancer progression and maintains body temperature in mice. Heliyon 2016; 2:e00111. [PMID: 27441282 PMCID: PMC4946216 DOI: 10.1016/j.heliyon.2016.e00111] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 04/20/2016] [Accepted: 05/06/2016] [Indexed: 12/30/2022] Open
Abstract
AIMS Cancer is a leading cause of morbidity and mortality worldwide; therefore, effective measures for cancer prevention and treatment are in constant demand. The extracts of Inonotus obliquus (Chaga mushroom) demonstrate potent anti-tumor activities and have been used to treat cancer in several countries; however, the actual effect and underlying mechanisms are still unclear. In the present study, we aimed to investigate the effects of continuous intake of aqueous extract from I. obliquus on tumor suppression. MAIN METHODS Anticancer activity of the I. obliquus extract was examined in mouse models of Lewis lung carcinoma growth and spontaneous metastasis after 3 weeks of continuous extract intake at the dose of 6 mg/kg/day, which corresponded to that ingested daily with Chaga infusion in Japan. KEY FINDINGS The extract of I. obliquus caused significant tumor suppressive effects in both models. Thus, in tumor-bearing mice, 60% tumor reduction was observed, while in metastatic mice, the number of nodules decreased by 25% compared to the control group. Moreover, I. obliquus extract-treated mice demonstrated the increase in tumor agglomeration and inhibition of vascularization. Interestingly, I. obliquus intake decreased body weight in middle-aged mice and increased body temperature in response to light-dark switching in mature adult mice. Furthermore, I. obliquus prevented temperature drop in mice after tumor implantation. SIGNIFICANCE Our findings suggest that the I. obliquus extract could be used as a natural remedy for cancer suppression by promoting energy metabolism.
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Mandal CC, Sharma A, Panwar MS, Radosevich JA. Is cholesterol a mediator of cold-induced cancer? Tumour Biol 2016; 37:9635-48. [DOI: 10.1007/s13277-016-4799-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 01/06/2016] [Indexed: 01/11/2023] Open
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12
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Inadvertent Perianesthetic Hypothermia in Small Animal Patients. Vet Clin North Am Small Anim Pract 2015; 45:983-94. [DOI: 10.1016/j.cvsm.2015.04.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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A link between cold environment and cancer. Tumour Biol 2015; 36:5953-64. [PMID: 25736923 DOI: 10.1007/s13277-015-3270-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 02/17/2015] [Indexed: 12/22/2022] Open
Abstract
Many risk factors such as smoking and change of life style have been shown to promote genetic and adaptive epigenetic changes responsible for tumorigenesis. This study brings environmental temperature as a cancer causing factor to light. The cancer mortality rate (CMR) of a country was correlated with 17 different variables. Multivariate analysis of a total of 188 countries found that the average annual temperature (AAT) of a country might have a significant contribution to cancer death when compared with other factors such as alcohol and meat consumption. Univariate analysis found a negative correlation between AAT and CMR. All these countries were categorized into three temperature zones (zone I, -2 to 11.5 °C; number of countries, 38; zone II, 11.6 to 18.6 °C; number of countries, 32; and zone III, 18.7 to 30 °C; number of countries, 118). Out of the top-most 50 countries having the highest CMR, 26 (68.42 %), 10 (31.25 %), and 14 (11.66 %) belong to zone I, zone II, and zone III, respectively. Out of the least 50 countries having the lowest CMR, 1 (2.63 %), 4 (12.5 %), and 45 (37.5 %) belong to zone I, zone II, and zone III, respectively. CMR is low in those countries situated near to the Torrid zone (33(°) N to 23.5(°)S), but it is high for those countries situated away from these two latitudes. These data indicate that cold temperature may have a contribution in increasing tumorigenesis. High metabolic stress, which is the result of maintaining our body temperature against a cold environment, could be the possible cause for the higher cancer mortality.
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Yamaoka M, Maeda N, Takayama Y, Sekimoto R, Tsushima Y, Matsuda K, Mori T, Inoue K, Nishizawa H, Tominaga M, Funahashi T, Shimomura I. Adipose hypothermia in obesity and its association with period homolog 1, insulin sensitivity, and inflammation in fat. PLoS One 2014; 9:e112813. [PMID: 25397888 PMCID: PMC4232416 DOI: 10.1371/journal.pone.0112813] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 10/15/2014] [Indexed: 12/12/2022] Open
Abstract
Visceral fat adiposity plays an important role in the development of metabolic syndrome. We reported previously the impact of human visceral fat adiposity on gene expression profile of peripheral blood cells. Genes related to circadian rhythm were highly associated with visceral fat area and period homolog 1 (PER1) showed the most significant negative correlation with visceral fat area. However, regulation of adipose Per1 remains poorly understood. The present study was designed to understand the regulation of Per1 in adipose tissues. Adipose Per1 mRNA levels of ob/ob mice were markedly low at 25 and 35 weeks of age. The levels of other core clock genes of white adipose tissues were also low in ob/ob mice at 25 and 35 weeks of age. Per1 mRNA was mainly expressed in the mature adipocyte fraction (MAF) and it was significantly low in MAF of ob/ob mice. To examine the possible mechanisms, 3T3-L1 adipocytes were treated with H2O2, tumor necrosis factor-α (TNF-α), S100A8, and lipopolysaccharide (LPS). However, no significant changes in Per1 mRNA level were observed by these agents. Exposure of cultured 3T3-L1 adipocytes to low temperature (33°C) decreased Per1 and catalase, and increased monocyte chemoattractant protein-1 (Mcp-1) mRNA levels. Hypothermia also worsened insulin-mediated Akt phosphorylation in 3T3-L1 adipocytes. Finally, telemetric analysis showed low temperature of adipose tissues in ob/ob mice. In obesity, adipose hypothermia seems to accelerate adipocyte dysfunction.
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Affiliation(s)
- Masaya Yamaoka
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Norikazu Maeda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- * E-mail:
| | - Yasunori Takayama
- Division of Cell Signaling, Okazaki Institute for Integrative Bioscience (National Institute for Physiological Sciences), National Institutes of Natural Sciences, Okazaki, Aichi, 444-8787, Japan
| | - Ryohei Sekimoto
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yu Tsushima
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Keisuke Matsuda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Takuya Mori
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Kana Inoue
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Hitoshi Nishizawa
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Makoto Tominaga
- Division of Cell Signaling, Okazaki Institute for Integrative Bioscience (National Institute for Physiological Sciences), National Institutes of Natural Sciences, Okazaki, Aichi, 444-8787, Japan
- Department of Physiological Sciences, The Graduate University for Advanced Studies, Okazaki, Aichi, 444-8585, Japan
| | - Tohru Funahashi
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Iichiro Shimomura
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
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MicroRNA-21 (miR-21) regulates cellular proliferation, invasion, migration, and apoptosis by targeting PTEN, RECK and Bcl-2 in lung squamous carcinoma, Gejiu City, China. PLoS One 2014; 9:e103698. [PMID: 25084400 PMCID: PMC4118890 DOI: 10.1371/journal.pone.0103698] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Accepted: 07/07/2014] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND In South China (Gejiu City, Yunnan Province), lung cancer incidence and associated mortality rate is the most prevalent and observed forms of cancer. Lung cancer in this area is called Gejiu squamous cell lung carcinoma (GSQCLC). Research has demonstrated that overexpression of miR-21 occurs in many cancers. However, the unique relationship between miR-21 and its target genes in GSQCLC has never been investigated. The molecular mechanism involved in GSQCLC must be compared to other non-small cell lung cancers in order to establish a relation and identify potential therapeutic targets. METHODOLOGY/PRINCIPAL FINDINGS In the current study, we initially found overexpression of miR-21 occurring in non-small cell lung cancer (NSCLC) cell lines when compared to the immortalized lung epithelial cell line BEAS-2B. We also demonstrated that high expression of miR-21 could increase tumor cell proliferation, invasion, viability, and migration in GSQCLC cell line (YTMLC-90) and NSCLC cell line (NCI-H157). Additionally, our results revealed that miR-21 could suppress YTMLC-90 and NCI-H157 cell apoptosis through arresting cell-cycle at G2/M phase. Furthermore, we demonstrated that PTEN, RECK and Bcl-2 are common target genes of miR-21 in NSCLC. Finally, our studies showed that down-regulation of miR-21 could lead to a significant increase in PTEN and RECK and decrease in Bcl-2 at the mRNA and protein level in YTMLC-90 and NCI-H157 cell lines. However, we have not observed any remarkable difference in the levels of miR-21 and its targets in YTMLC-90 cells when compared with NCI-H157 cells. CONCLUSIONS/SIGNIFICANCE miR-21 simultaneously regulates multiple programs that enhance cell proliferation, apoptosis and tumor invasiveness by targeting PTEN, RECK and Bcl-2 in GSQCLC. Our results demonstrated that miR-21 may play a vital role in tumorigenesis and progression of lung squamous cell carcinoma and suppression of miR-21 may be a novel approach for the treatment of lung squamous cell carcinoma.
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