1
|
Tan FHP, Ting ACJ, Leow BG, Najimudin N, Watanabe N, Azzam G. Alleviatory effects of Danshen, Salvianolic acid A and Salvianolic acid B on PC12 neuronal cells and Drosophila melanogaster model of Alzheimer's disease. JOURNAL OF ETHNOPHARMACOLOGY 2021; 279:114389. [PMID: 34217797 DOI: 10.1016/j.jep.2021.114389] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 05/22/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Danshen water extract (DWE), obtained from the Salvia miltiorrhiza Bunge (Family Lamiaceae) root, is usually employed in Chinese traditional medicine as treatment to cardiovascular ailments and cerebrovascular diseases. Intriguingly, the extract was also found to contain vast beneficial properties in Alzheimer's disease (AD) treatment. AIM OF THE STUDY Alzheimer's disease is the most significant type of neurodegenerative disorder plaguing societies globally. Its pathogenesis encompasses the hallmark aggregation of amyloid-beta (Aβ). Of all the Aβ oligomers formed in the brain, Aβ42 is the most toxic and aggressive. Despite this, the mechanism behind this disease remains elusive. In this study, DWE, and its major components, Salvianolic acid A (SalA) and Salvianolic acid B (SalB) were tested for their abilities to attenuate Aβ42's toxic effects. METHODS The composition of DWE was determined via Ultra-Performance Liquid Chromatography (UPLC). DWE, SalA and SalB were first verified for their capability to diminish Aβ42 fibrillation using an in vitro activity assay. Since Aβ42 aggregation results in neuronal degeneration, the potential Aβ42 inhibitors were next evaluated on Aβ42-exposed PC12 neuronal cells. The Drosophila melanogaster AD model was then employed to determine the effects of DWE, SalA and SalB. RESULTS DWE, SalA and SalB were shown to be able to reduce fibrillation of Aβ42. When tested on PC12 neuronal cells, DWE, SalA and SalB ameliorated cells from cell death associated with Aβ42 exposure. Next, DWE and its components were tested on the Drosophila melanogaster AD model and their rescue effects were further characterized. The UPLC analysis showed that SalA and SalB were present in the brains and bodies of Drosophila after DWE feeding. When human Aβ42 was expressed, the AD Drosophila exhibited degenerated eye structures known as the rough eye phenotype (REP), reduced lifespan and deteriorated locomotor ability. Administration of DWE, SalA and SalB partially reverted the REP, increased the age of AD Drosophila and improved most of the mobility of AD Drosophila. CONCLUSION Collectively, DWE and its components may have therapeutic potential for AD patients and possibly other forms of brain diseases.
Collapse
Affiliation(s)
- Florence Hui Ping Tan
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia; USM-RIKEN International Centre for Ageing Science (URICAS), Universiti Sains Malaysia, 11800, Penang, Malaysia.
| | | | - Ban Guan Leow
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia.
| | - Nazalan Najimudin
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia; USM-RIKEN International Centre for Ageing Science (URICAS), Universiti Sains Malaysia, 11800, Penang, Malaysia.
| | - Nobumoto Watanabe
- USM-RIKEN International Centre for Ageing Science (URICAS), Universiti Sains Malaysia, 11800, Penang, Malaysia; Bioprobe Application Research Unit, RIKEN Centre for Sustainable Resource Science, RIKEN, Japan.
| | - Ghows Azzam
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia; USM-RIKEN International Centre for Ageing Science (URICAS), Universiti Sains Malaysia, 11800, Penang, Malaysia.
| |
Collapse
|
2
|
The Effect of Salvianolic Acid on Vascular Protection and Possible Mechanisms. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5472096. [PMID: 33062143 PMCID: PMC7533016 DOI: 10.1155/2020/5472096] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/24/2020] [Accepted: 09/01/2020] [Indexed: 01/29/2023]
Abstract
Salvia miltiorrhiza (Danshen), as an important traditional Chinese medicinal plant, has been used in China for the treatment of cardiovascular diseases for hundreds of years. Salvianolic acids (salvianolic acid A and salvianolic acid B) as the most abundant water-soluble component extracted from Salvia miltiorrhiza have attracted more and more attention from cardiovascular scientists due to its comprehensive cardiovascular actions. In vivo and in vitro studies have rendered salvianolic acid an excellent drug candidate for the treatment and prevention of cardiovascular diseases. In this review, we surveyed the protective effects of salvianolic acid A and salvianolic acid B against cardiovascular diseases and the pharmacological basis, providing a strong scientific rationale for elucidating the important role of Salvia miltiorrhiza in cardiovascular therapy. More importantly, we also hope to provide new inspiration and perspectives on the development and innovation of small-molecule cardiovascular drugs based on salvianolic acid.
Collapse
|
3
|
Functional Redox Proteomics Reveal That Salvia miltiorrhiza Aqueous Extract Alleviates Adriamycin-Induced Cardiomyopathy via Inhibiting ROS-Dependent Apoptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5136934. [PMID: 32963697 PMCID: PMC7501560 DOI: 10.1155/2020/5136934] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/14/2020] [Accepted: 08/19/2020] [Indexed: 01/03/2023]
Abstract
The anticancer agent adriamycin (ADR) has long been recognized to induce a dose-limiting cardiotoxicity, while Salvia miltiorrhiza (SM) is a Chinese herb widely used for the treatment of cardiovascular disorders and its aqueous extract (SMAE) has shown anticancer as well as antioxidant effects. In the current study, we aimed at investigating the synergistic effect and potent molecular mechanisms of SMAE with a focus on the cardioprotective benefit observed under ADR adoption. Histopathological analysis indicated that SMAE could substantially alleviate cardiomyopathy and cell apoptosis caused by ADR. Meanwhile, the two-dimensional electrophoresis (2-DE) oxyblots demonstrated that SMAE treatment could effectively reduce carbonylation of specific proteins associated with oxidative stress response and various metabolic pathways in the presence of ADR. SMAE application also showed protective efficacy against ADR-mediated H9c2 cell death in a dose-dependent manner without causing any cytotoxicity and significantly attenuated the reactive oxygen species production. Particularly, the simultaneous administration of ADR and SMAE could remarkably suppress the growth of breast cancer cells. We also noticed that there was a marked upregulation of detoxifying enzyme system in the presence of SMAE, and its exposure also contributed to an increase in Nrf2 and HO-1 content as well. SMAE also amended the ERK/p53/Bcl-xL/caspase-3 signaling pathways and the mitochondrial dysfunction, which eventually attribute to apoptotic cathepsin B/AIF cascades. Correspondingly, both the ERK1/2 inhibitor (U0126) and pan-caspase inhibitor (Z-VAD-FMK) could at least partially abolish the ADR-associated cytotoxicity in H9c2 cells. Collectively, these results support that ROS apoptosis-inducing molecule release is closely involved in ADR-induced cardiotoxicity while SMAE could prevent or mitigate the causative cardiomyopathy through controlling multiple targets without compromising the efficacy of chemotherapy.
Collapse
|
4
|
Type III intermediate filaments as targets and effectors of electrophiles and oxidants. Redox Biol 2020; 36:101582. [PMID: 32711378 PMCID: PMC7381704 DOI: 10.1016/j.redox.2020.101582] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/05/2020] [Accepted: 05/13/2020] [Indexed: 12/20/2022] Open
Abstract
Intermediate filaments (IFs) play key roles in cell mechanics, signaling and homeostasis. Their assembly and dynamics are finely regulated by posttranslational modifications. The type III IFs, vimentin, desmin, peripherin and glial fibrillary acidic protein (GFAP), are targets for diverse modifications by oxidants and electrophiles, for which their conserved cysteine residue emerges as a hot spot. Pathophysiological examples of these modifications include lipoxidation in cell senescence and rheumatoid arthritis, disulfide formation in cataracts and nitrosation in endothelial shear stress, although some oxidative modifications can also be detected under basal conditions. We previously proposed that cysteine residues of vimentin and GFAP act as sensors for oxidative and electrophilic stress, and as hinges influencing filament assembly. Accumulating evidence indicates that the structurally diverse cysteine modifications, either per se or in combination with other posttranslational modifications, elicit specific functional outcomes inducing distinct assemblies or network rearrangements, including filament stabilization, bundling or fragmentation. Cysteine-deficient mutants are protected from these alterations but show compromised cellular performance in network assembly and expansion, organelle positioning and aggresome formation, revealing the importance of this residue. Therefore, the high susceptibility to modification of the conserved cysteine of type III IFs and its cornerstone position in filament architecture sustains their role in redox sensing and integration of cellular responses. This has deep pathophysiological implications and supports the potential of this residue as a drug target. Type III intermediate filaments can be modified by many oxidants and electrophiles. Oxidative modifications of type III IFs occur in normal and pathological conditions. The conserved cysteine residue acts as a hub for redox/electrophilic modifications. Cysteine modifications elicit structure-dependent type III IF rearrangements. Type III intermediate filaments act as sensors for oxidative and electrophilic stress.
Collapse
|
5
|
Joung JY, Lee JS, Cho JH, Lee DS, Son CG. Acute and repeated toxicological study of Myelophil, an ethanol extract of a mixture of Astragali Radix and Salviae Miltiorrhizae Radix, in beagle dogs. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:166. [PMID: 31286942 PMCID: PMC6615141 DOI: 10.1186/s12906-019-2588-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 07/01/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND To evaluate the pharmaceutical safety of Myelophil, an ethanol extract of a mixture of Astragali Radix and Salviae Miltiorrhizae Radix, using both acute and repeated toxicological studies. METHODS A total of 40 beagle dogs (20 each male and female) were fed doses up to 5,000 mg/kg for the acute study and up to 1,250 mg/kg for the 13-week repeated dose toxicological study. Adverse effects were examined intensively by comparing the differences between normal and drug-administered groups using clinical signs, autopsies, histopathological findings, hematology, urinalysis, and biochemical analysis. RESULTS No mortality or drug-related clinical signs were observed in the Myelophil-treated groups, except for vomiting due to an excessive dose (5,000 mg/kg). Likewise, in the repeated toxicity test, compound-colored stools in the Myelophil-treated groups and soft stools in all groups, including the control, were observed. No drug-related abnormalities were found in the histopathology, hematology, urinalysis, and biochemical analyses for any doses of Myelophil. CONCLUSION These results support the safety of Myelophil with a no observed adverse effect level (NOAEL) of 1250 mg/kg in beagle dogs, which corresponds to a human equivalent dose (HED) of 694 g/kg.
Collapse
|
6
|
Ye W, Li Z, Tang T, Du J, Zhou X, Wu H, Li X, Qin G. ERp29 downregulation enhances lung adenocarcinoma cell chemosensitivity to gemcitabine by upregulating HSP27 phosphorylation. Exp Ther Med 2018; 17:817-823. [PMID: 30651868 DOI: 10.3892/etm.2018.7040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 10/26/2018] [Indexed: 12/23/2022] Open
Abstract
The aim of the current study was to assess the underlying mechanism of endoplasmic reticulum protein 29 (ERp29) in lung adenocarcinoma chemosensitivity to gemcitabine. Western blot analysis was performed to detect ERp29 expression following lung adenocarcinoma cell treatment with gemcitabine. The effects of gemcitabine in combination with ERp29 siRNA on cell apoptosis, cell cycle and heat shock protein 27 (HSP27) expression were assessed. The results demonstrated that ERp29 expression was increased on exposure to gemcitabine. The apoptotic rate of lung adenocarcinoma cells were also increased following gemcitabine treatment and the combined application of gemcitabine and ERp29 siRNA synergistically increased apoptotic rates further. It was also revealed that gemcitabine and ERp29 siRNA synergistically increased the ratio of phosphorylated to total HSP27 protein. In addition, downregulation of HSP27 significantly reduced lung adenocarcinoma chemosensitivity to gemcitabine. These data indicate that ERp29 affects lung adenocarcinoma cell chemosensitivity to gemcitabine by regulating phosphorylated HSP27. ERp29 is a novel target, which may be used to enhance the therapeutic effect of lung adenocarcinoma treatment with gemcitabine.
Collapse
Affiliation(s)
- Wu Ye
- Department of Respiratory Diseases, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Zhijun Li
- Department of Respiratory Diseases, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Tingyu Tang
- Department of Respiratory Diseases, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Jianzong Du
- Department of Respiratory Diseases, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Xiaoxi Zhou
- Department of Respiratory Diseases, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Haiyan Wu
- Department of Respiratory Diseases, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Xuefang Li
- Department of Cardiovascular Medicine, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Guangyue Qin
- Department of Respiratory Diseases, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| |
Collapse
|
7
|
Genotoxicity Evaluation of an Ethanol Extract Mixture of Astragali Radix and Salviae miltiorrhizae Radix. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:5684805. [PMID: 30402128 PMCID: PMC6198562 DOI: 10.1155/2018/5684805] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/02/2018] [Indexed: 12/13/2022]
Abstract
Myelophil, a combination of Astragali Radix and Salviae Radix, is one of the most commonly used remedies for disorders of Qi and blood in traditional Chinese medicine. Based on the clinical applications of these plants, in particular to pregnant woman, this study aimed to evaluate the genotoxic potential of an ethanol extract mixture of the above two herbs, called Myelophil. Following the Organization for Economic Cooperation and Development (OECD) Guideline methods, a genotoxicity test was conducted using a bacterial reverse mutation test with Salmonella typhimurium (TA98, TA100, TA1535, and TA1537) and Escherichia coli (WP2μvrA), an in vitro mammalian chromosome aberration test using a Chinese hamster ovary cell line (CHO-K1), and an in vivo mammalian erythrocyte micronucleus test using ICR mouse bone marrow. In the Ames test, for both types of mutations (base substitution and frameshift) under conditions with/without an S9 mix up to 5,000 μg/plate, Myelophil did not increase the number of revertant colonies of all S. typhimurium strains as well as E. coli strain. For both short (6 h) and long tests with/without S9 mix, the chromosome aberration test did not show any significant increase in the number of structural or numerical chromosome aberrations by Myelophil. In addition, no significant change in the number of micronucleated polychromatic erythrocytes or polychromatic erythrocytes was observed in the bone marrow of an ICR mouse administered Myelophil orally at 2,000 mg/kg/day for 2 days, respectively. These results are the first to provide experimental evidence that Myelophil, an ethanol extract mixture of Astragali Radix and Salviae Radix, has no risk of genotoxicity.
Collapse
|
8
|
Huang SC, Wang PW, Kuo PC, Hung HY, Pan TL. Hepatoprotective Principles and Other Chemical Constituents from the Mycelium of Phellinus linteus. Molecules 2018; 23:molecules23071705. [PMID: 30002357 PMCID: PMC6099599 DOI: 10.3390/molecules23071705] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/05/2018] [Accepted: 07/12/2018] [Indexed: 12/16/2022] Open
Abstract
In the dimethylnitrosamine (DMN)-induced hepatic fibrosis Wistar rat model, the mycelium extract of Phellinus linteus (PLE) (20 mg/Kg) displayed significant protection against hepatic fibrosis. The present investigation characterized eleven new ionone derivatives, phellinulins D–N (4–14), from the P. linteus mycelium extract and the relative stereochemical structures were constructed according to the spectroscopic and spectrometric analytical results. Some purified compounds were examined for their inhibitory effects on activated rat hepatic stellate cells (HSCs) and several isolates did exhibit significant protection. The results indicated that the mycelium of P. linteus could be explored as a hepatoprotective drug or healthy food candidate in the near future.
Collapse
Affiliation(s)
- Shiow-Chyn Huang
- Department of Pharmacy, Chia-Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| | - Pei-Wen Wang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan.
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Tai-Long Pan
- School of Traditional Chinese Medicine, Chang Gung University; Research Center for Chinese Herbal Medicine and Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology; Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| |
Collapse
|
9
|
Oxidative Stress and Salvia miltiorrhiza in Aging-Associated Cardiovascular Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:4797102. [PMID: 27807472 PMCID: PMC5078662 DOI: 10.1155/2016/4797102] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 09/15/2016] [Indexed: 12/13/2022]
Abstract
Aging-associated cardiovascular diseases (CVDs) have some risk factors that are closely related to oxidative stress. Salvia miltiorrhiza (SM) has been used commonly to treat CVDs for hundreds of years in the Chinese community. We aimed to explore the effects of SM on oxidative stress in aging-associated CVDs. Through literature searches using Medicine, PubMed, EMBASE, Cochrane library, CINAHL, and Scopus databases, we found that SM not only possesses antioxidant, antiapoptotic, and anti-inflammatory effects but also exerts angiogenic and cardioprotective activities. SM may reduce the production of reactive oxygen species by inhibiting oxidases, reducing the production of superoxide, inhibiting the oxidative modification of low-density lipoproteins, and ameliorating mitochondrial oxidative stress. SM also increases the activities of catalase, manganese superoxide dismutase, glutathione peroxidase, and coupled endothelial nitric oxide synthase. In addition, SM reduces the impact of ischemia/reperfusion injury, prevents cardiac fibrosis after myocardial infarction, preserves cardiac function in coronary disease, maintains the integrity of the blood-brain barrier, and promotes self-renewal and proliferation of neural stem/progenitor cells in stroke. However, future clinical well-designed and randomized control trials will be necessary to confirm the efficacy of SM in aging-associated CVDs.
Collapse
|
10
|
Zhongdanyaozhi No. 1 and Zhongdanyaozhi No. 2 Are Hybrid Cultivars of Salvia miltiorrhiza with High Yield and Active Compounds Content. PLoS One 2016; 11:e0162691. [PMID: 27658029 PMCID: PMC5033597 DOI: 10.1371/journal.pone.0162691] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 08/27/2016] [Indexed: 12/15/2022] Open
Abstract
Salvia miltiorrhiza Bunge is an important medicinal plant used for the treatment of cardiovascular disease. Intraspecific hybridization between a male sterile line and inbred lines was followed by 39 F1 crossings. Cultivars “Zhongdanyaozhi No. 1” (ZD1) and “Zhongdanyaozhi No. 2” (ZD2) were obtained. In 2012 and 2013 tests in Beijing, the two cultivars were compared with three widely accepted types, SDCK, SXCK and HNCK from Shandong, Shanxi and Henan provinces. The yield of ZD1 and ZD2 exceeded the three CKs by more than 48.2% and 39.2%, respectively; the composition of the two hybrid cultivars was similar to the control, although the content of some compounds varied to some extent. The content of salvianolic acid B and tanshinone II A of both ZD1 and ZD2 could measure up the requirement of Chinese Pharmacopoeia. The former showed no obvious advantage than the three CKs, while the later’s tanshinone II A was 29.6% higher than the three CKs. Taken together, ZD1 is a high yielding and thick-root-type cultivar which is suitable for decoction pieces; while ZD2 is suitable for component especially lipophilic component extraction. ZD1 and ZD2 reported here are the first cultivars obtained by the hybridization of S. miltiorrhiza.
Collapse
|
11
|
Hung YC, Cheng YC, Muo CH, Chiu HE, Liu CT, Hu WL. Adjuvant Chinese Herbal Products for Preventing Ischemic Stroke in Patients with Atrial Fibrillation. PLoS One 2016; 11:e0159333. [PMID: 27428543 PMCID: PMC4948896 DOI: 10.1371/journal.pone.0159333] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 06/30/2016] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE Chinese herbal products (CHPs) are widely used for atrial fibrillation (AF) in Taiwan. We investigated the effect of adjuvant CHPs in preventing ischemic stroke in patients with AF. METHODS Taiwanese patients in the Health Insurance Database newly diagnosed with AF during 2000-2011 were enrolled. Medication treatment with/without CHPs was administered within 7 days after the AF diagnosis. The clinical endpoint was an ischemic stroke. The Chi-square test, Fisher's exact test, and Student t test were used to examine differences between the traditional Chinese medicine (TCM) and non-TCM cohorts. Cox proportional hazard regression was used to assess the risk for ischemic stroke between two cohorts. RESULTS Three hundred and eleven patients underwent TCM treatment and 1715 patients did not. Compared to non-TCM users, TCM users had a lower incidence of stroke (12.59% vs. 1.93%, respectively) and lower risk of stroke [CHA2DS2-VASc score = 0-2 (hazard ratio = 0.20; 95% confidence interval = 0.06-0.65)]. Compared to non-TCM users, the stroke risk was significantly lower in TCM users with AF who were female or younger than 65 years, but not in males, people more than 65 years old, or people with comorbidities. Compared to TCM users, non-TCM users who received conventional treatment had a higher ischemic stroke risk. The risk for AF-related hospitalization was significantly lower in TCM users (0.64%) than in non-TCM users (38.1%). CONCLUSIONS Users of TCM with AF have a lower risk of new-onset ischemic stroke. Therefore, adjuvant CHP therapy may have a protective effect and may be used in AF patients to prevent ischemic stroke.
Collapse
Affiliation(s)
- Yu-Chiang Hung
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
- School of Chinese Medicine for Post Baccalaureate, I-Shou University, Kaohsiung, Taiwan
- * E-mail: (YCH); (WLH)
| | - Yu-Chen Cheng
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chih-Hsin Muo
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Hsienhsueh Elley Chiu
- School of Chinese Medicine for Post Baccalaureate, I-Shou University, Kaohsiung, Taiwan
| | - Chun-Ting Liu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wen-Long Hu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
- Kaohsiung Medical University College of Medicine, Kaohsiung, Taiwan
- Fooyin University College of Nursing, Kaohsiung, Taiwan
- * E-mail: (YCH); (WLH)
| |
Collapse
|
12
|
Huang SC, Kuo PC, Hung HY, Pan TL, Chen FA, Wu TS. Ionone Derivatives from the Mycelium of Phellinus linteus and the Inhibitory Effect on Activated Rat Hepatic Stellate Cells. Int J Mol Sci 2016; 17:ijms17050681. [PMID: 27164091 PMCID: PMC4881507 DOI: 10.3390/ijms17050681] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 04/22/2016] [Accepted: 04/26/2016] [Indexed: 12/12/2022] Open
Abstract
Three new γ-ionylideneacetic acid derivatives, phellinulins A-C (1-3), were characterized from the mycelium extract of Phellinus linteus. The chemical structures were established based on the spectroscopic analysis. In addition, phellinulin A (1) was subjected to the examination of effects on activated rat hepatic stellate cells and exhibited significant inhibition of hepatic fibrosis.
Collapse
Affiliation(s)
- Shiow-Chyn Huang
- Department of Pharmacy, Chia-Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| | - Ping-Chung Kuo
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Hsin-Yi Hung
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Tai-Long Pan
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| | - Fu-An Chen
- Department of Pharmacy and Graduate Institute of Pharmaceutical Technology, Tajen University, Pingtung 907, Taiwan.
| | - Tian-Shung Wu
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
- Department of Pharmacy and Graduate Institute of Pharmaceutical Technology, Tajen University, Pingtung 907, Taiwan.
| |
Collapse
|
13
|
Su CY, Ming QL, Rahman K, Han T, Qin LP. Salvia miltiorrhiza: Traditional medicinal uses, chemistry, and pharmacology. Chin J Nat Med 2016; 13:163-82. [PMID: 25835361 DOI: 10.1016/s1875-5364(15)30002-9] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Indexed: 02/07/2023]
Abstract
Salvia miltiorrhiza Bunge (SM) is a very popular medicinal plant that has been extensively applied for many years to treat various diseases, especially coronary heart diseases and cerebrovascular diseases, either alone or in combination with other Chinese plant-based medicines. Although a large number of studies on SM have been performed, they are scattered across a variety of publications. The present review is an up-to-date summary of the published scientific information about the traditional uses, chemical constituents, pharmacological effects, side effects, and drug interactions with SM, in order to lay the foundation for further investigations and better utilization of SM. SM contains diverse chemical components including diterpenoid quinones, hydrophilic phenolic acids, and essential oils. Many pharmacological studies have been done on SM during the last 30 years, focusing on the cardiovascular and cerebrovascular effects, and the antioxidative, neuroprotective, antifibrotic, anti-inflammatory, and antineoplastic activities. The research results strongly support the notion that SM has beneficial therapeutic properties and has a potential of being an effective adaptogenic remedy.
Collapse
Affiliation(s)
- Chun-Yan Su
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
| | - Qian-Liang Ming
- Department of Pharmacognosy, School of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Khalid Rahman
- Faculty of Science, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Ting Han
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Lu-Ping Qin
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| |
Collapse
|
14
|
Increased expression of endoplasmic reticulum protein 29 in lung adenocarcinoma is associated with chemosensitivity to gemcitabine. Anticancer Drugs 2015; 26:612-9. [PMID: 25734833 DOI: 10.1097/cad.0000000000000225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Lung adenocarcinoma is the leading cause of cancer-related death worldwide. The aim of the present study was to investigate the potential function of endoplasmic reticulum protein 29 (ERp29) in lung adenocarcinoma. We examined the expression of ERp29 in 75 patients with lung adenocarcinoma by immunohistochemical analysis, as well as its association with clinicopathological features. We further tested the effects of inhibiting ERp29 on cell proliferation, migration ability, and chemosensitivity to gemcitabine in human lung adenocarcinoma cell lines. ERp29 was significantly overexpressed in lung adenocarcinoma when compared with matched nontumor tissues. However, we did not observe significant associations of ERp29 with any of the clinicopathologic characteristics, including sex, age, differentiation, tumor, node, and metastasis stage, T stage, and lymph node metastasis. Downregulation of ERp29 by small interfering RNA did not affect cell growth, but impaired cell migration of lung adenocarcinoma cells. Inhibition of ERp29 significantly enhanced the chemosensitivity of lung adenocarcinoma cells to gemcitabine. These results support a probable treatment combination of gemcitabine and inhibition of ERp29 overexpression for lung adenocarcinoma to promote the clinical curative effects.
Collapse
|
15
|
Hung YC, Tseng YJ, Hu WL, Chen HJ, Li TC, Tsai PY, Chen HP, Huang MH, Su FY. Demographic and Prescribing Patterns of Chinese Herbal Products for Individualized Therapy for Ischemic Heart Disease in Taiwan: Population-Based Study. PLoS One 2015; 10:e0137058. [PMID: 26322893 PMCID: PMC4556444 DOI: 10.1371/journal.pone.0137058] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Accepted: 08/13/2015] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE Combinations of Chinese herbal products (CHPs) are widely used for ischemic heart disease (IHD) in Taiwan. We analyzed the usage and frequency of CHPs prescribed for patients with IHD. METHODS A nationwide population-based cross-sectional study was conducted, 53531 patients from a random sample of one million in the National Health Insurance Research Database (NHIRD) from 2000 to 2010 were enrolled. Descriptive statistics, the multiple logistic regression method and Poisson regression analysis were employed to estimate the adjusted odds ratios (aORs) and adjusted risk ratios (aRRs) for utilization of CHPs. RESULTS The mean age of traditional Chinese medicine (TCM) nonusers was significantly higher than that of TCM users. Zhi-Gan-Cao-Tang (24.85%) was the most commonly prescribed formula CHPs, followed by Xue-Fu-Zhu-Yu-Tang (16.53%) and Sheng-Mai-San (16.00%). The most commonly prescribed single CHPs were Dan Shen (29.30%), Yu Jin (7.44%), and Ge Gen (6.03%). After multivariate adjustment, patients with IHD younger than 29 years had 2.62 times higher odds to use TCM than those 60 years or older. Residents living in Central Taiwan, having hyperlipidemia or cardiac dysrhythmias also have higher odds to use TCM. On the contrary, those who were males, who had diabetes mellitus (DM), hypertension, stroke, myocardial infarction (MI) were less likely to use TCM. CONCLUSIONS Zhi-Gan-Cao-Tang and Dan Shen are the most commonly prescribed CHPs for IHD in Taiwan. Our results should be taken into account by physicians when devising individualized therapy for IHD. Further large-scale, randomized clinical trials are warranted in order to determine the effectiveness and safety of these herbal medicines.
Collapse
Affiliation(s)
- Yu-Chiang Hung
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and School of Traditional Chinese Medicine, Chang Gung University College of Medicine, No.123, Dapi Rd., Niaosong Dist., Kaohsiung 833, Taiwan
- School of Chinese Medicine for Post Baccalaureate, I-Shou University, No.1, Sec. 1, Syuecheng Rd., Dashu District, Kaohsiung City 84001, Taiwan
| | - Ying-Jung Tseng
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and School of Traditional Chinese Medicine, Chang Gung University College of Medicine, No.123, Dapi Rd., Niaosong Dist., Kaohsiung 833, Taiwan
| | - Wen-Long Hu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and School of Traditional Chinese Medicine, Chang Gung University College of Medicine, No.123, Dapi Rd., Niaosong Dist., Kaohsiung 833, Taiwan
- Fooyin University College of Nursing, No.151, Chinhsueh Rd., Ta-liao Dist., Kaohsiung City 831, Taiwan
- Kaohsiung Medical University College of Medicine, No.100, Shihcyuan 1st Rd., Sanmin Dist., Kaohsiung City 807, Taiwan
| | - Hsuan-Ju Chen
- Management Office for Health Data, China Medical University Hospital, No.2 Yude Road, Taichung 40447, Taiwan
- College of Medicine, China Medical University, No.91, Hsueh-Shih Road, Taichung 40402, Taiwan
| | - Tsai-Chung Li
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, No.91, Hsueh-Shih Road, Taichung 40402, Taiwan
- Department of Healthcare Administration, College of Health Science, Asia University, No.500, Lioufeng Rd., Wufeng, Taichung 41354, Taiwan
| | - Pei-Yuan Tsai
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and School of Traditional Chinese Medicine, Chang Gung University College of Medicine, No.123, Dapi Rd., Niaosong Dist., Kaohsiung 833, Taiwan
| | - Hsin-Ping Chen
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and School of Traditional Chinese Medicine, Chang Gung University College of Medicine, No.123, Dapi Rd., Niaosong Dist., Kaohsiung 833, Taiwan
| | - Meng-Hsuan Huang
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and School of Traditional Chinese Medicine, Chang Gung University College of Medicine, No.123, Dapi Rd., Niaosong Dist., Kaohsiung 833, Taiwan
| | - Fang-Yen Su
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and School of Traditional Chinese Medicine, Chang Gung University College of Medicine, No.123, Dapi Rd., Niaosong Dist., Kaohsiung 833, Taiwan
| |
Collapse
|
16
|
Effect of Salvia miltiorrhiza polysaccharides on boar spermatozoa during freezing–thawing. Anim Reprod Sci 2015; 159:25-30. [DOI: 10.1016/j.anireprosci.2015.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 03/29/2015] [Accepted: 05/07/2015] [Indexed: 12/24/2022]
|
17
|
ERp29 deficiency affects sensitivity to apoptosis via impairment of the ATF6-CHOP pathway of stress response. Apoptosis 2014; 19:801-15. [PMID: 24370996 DOI: 10.1007/s10495-013-0961-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Endoplasmic reticulum protein 29 (ERp29) belongs to the redox-inactive PDI-Dβ-subfamily of PDI-proteins. ERp29 is expressed in all mammalian tissues examined. Especially high levels of expression were observed in secretory tissues and in some tumors. However, the biological role of ERp29 remains unclear. In the present study we show, by using thyrocytes and primary dermal fibroblasts from adult ERp29(-/-) mice, that ERp29 deficiency affects the activation of the ATF6-CHOP-branch of unfolded protein response (UPR) without influencing the function of other UPR branches, like the ATF4-eIF2α-XBP1 signaling pathway. As a result of impaired ATF6 activation, dermal fibroblasts and adult thyrocytes from ERp29(-/-) mice display significantly lower apoptosis sensitivities when treated with tunicamycin and hydrogen peroxide. However, in contrast to previous reports, we could demonstrate that ERp29 deficiency does not alter thyroglobulin expression levels. Therefore, our study suggests that ERp29 acts as an escort factor for ATF6 and promotes its transport from ER to Golgi apparatus under ER stress conditions.
Collapse
|
18
|
Fu J, Fan HB, Guo Z, Wang Z, Li XD, Li J, Pei GX. Salvianolic acid B attenuates spinal cord ischemia-reperfusion-induced neuronal injury and oxidative stress by activating the extracellular signal-regulated kinase pathway in rats. J Surg Res 2013; 188:222-30. [PMID: 24387840 DOI: 10.1016/j.jss.2013.11.1118] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/22/2013] [Accepted: 11/27/2013] [Indexed: 11/25/2022]
Abstract
BACKGROUND Salvianolic acid B (SalB), the main bioactive compound isolated from the traditional Chinese medicinal herb broad Radix Salviae Miltiorrhizae exerts a spectrum of pharmacologic activities. We investigated the effects of SalB treatment in a rat model of spinal cord ischemia and reperfusion (I/R) injury and the underlying mechanism. MATERIALS AND METHODS SalB was administered at 1, 10, or 50 mg/kg after spinal cord ischemia. The potential protective effects on spinal cord injury were determined by spinal cord edema, infarct volume, and motor function assessment of the hind limbs. RESULTS SalB treatment significantly decreased spinal cord edema and infarct volume and preserved motor function of the hind limbs in a dose-dependent manner. SalB administration ameliorated the generation of oxidative products and preserved antioxidant defense activities in the injured spinal cord at both 4 and 24 h after I/R injury. Moreover, SalB prolonged the I/R injury-induced activation of extracellular signal-regulated kinase (ERK), and blocking ERK activation with PD98059 partially prevented the neuroprotective effects of SalB. CONCLUSIONS These findings demonstrate the neuroprotective effects of SalB in a spinal cord I/R injury model and suggest that SalB-induced neuroprotection was mediated by ERK activation.
Collapse
Affiliation(s)
- Jun Fu
- Department of Orthopaedic Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Hong-bin Fan
- Department of Orthopaedic Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zheng Guo
- Department of Orthopaedic Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Zhen Wang
- Department of Orthopaedic Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Xiang-dong Li
- Department of Orthopaedic Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jing Li
- Department of Orthopaedic Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Guo-xian Pei
- Department of Orthopaedic Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| |
Collapse
|
19
|
Tu Q, Wang R, Ding B, Zhong W, Cao H. Protective and antioxidant effect of Danshen polysaccharides on cerebral ischemia/reperfusion injury in rats. Int J Biol Macromol 2013; 60:268-71. [DOI: 10.1016/j.ijbiomac.2013.05.035] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 05/18/2013] [Accepted: 05/29/2013] [Indexed: 01/07/2023]
|
20
|
Pan TL, Wu TH, Wang PW, Leu YL, Sintupisut N, Huang CH, Chang FR, Wu YC. Functional proteomics reveals the protective effects of saffron ethanolic extract on hepatic ischemia-reperfusion injury. Proteomics 2013; 13:2297-2311. [DOI: 10.1002/pmic.201200551] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Tai-Long Pan
- School of Traditional Chinese Medicine; Chang Gung University; Taoyuan Taiwan
- Chinese Herbal Medicine Research Team, Healthy Aging Research Center; Chang Gung University; Taoyuan Taiwan
| | - Tung-Ho Wu
- Graduate Institute of Natural Products; Kaohsiung Medical University; Kaohsiung Taiwan
- Division of Cardiovascular Surgery, Veterans General Hospital; Kaohsiung Taiwan
| | - Pei-Wen Wang
- School of Traditional Chinese Medicine; Chang Gung University; Taoyuan Taiwan
| | - Yann-Lii Leu
- Chinese Herbal Medicine Research Team, Healthy Aging Research Center; Chang Gung University; Taoyuan Taiwan
- Graduate Institute of Natural Products; Chang Gung University; Taoyuan Taiwan
| | | | - Chun-Hsun Huang
- Research Center for Industry of Human Ecology; Chang Gung University of Science and Technology; Taoyuan Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products; Kaohsiung Medical University; Kaohsiung Taiwan
| | - Yang-Chang Wu
- Graduate Institute of Natural Products; Kaohsiung Medical University; Kaohsiung Taiwan
- Graduate Institute of Integrated Medicine, College of Chinese Medicine; China Medical University; Taichung Taiwan
- Natural Medicinal Products Research Center and Center for Molecular Medicine; China Medical University Hospital; Taichung Taiwan
| |
Collapse
|
21
|
Aqueous extract of danshen (Salvia miltiorrhiza Bunge) protects ovariectomized rats fed with high-fat diet from endothelial dysfunction. Menopause 2013; 20:100-9. [PMID: 22914206 DOI: 10.1097/gme.0b013e31825b512d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Cardiovascular disease (CVD) is a leading cause of morbidity and mortality in postmenopausal women. Danshen, the dried root of Salvia miltiorrhiza Bunge, has been used clinically in China to treat CVD and dyslipidemia in postmenopausal women, and its major active ingredients have been found to have an estrogenic effect. The aim of this study was to elucidate the underlying mechanism of danshen's protective effects on vascular function in an ovariectomized (OVX) hyperlipidemic rat model. METHODS Thirty-five 6-month-old female Sprague-Dawley rats were randomly divided into five groups: sham-operated rats with low-fat control diet + vehicle, sham-operated rats with high-fat diet (HFD) + vehicle, OVX rats with HFD + vehicle, OVX rats with HFD + 17β-estradiol (1 mg kg d, PO), and OVX rats with HFD + danshen aqueous extract (600 mg kg d, PO). After 12 weeks of treatment, gains in body weight and serum lipid profile levels in rats were measured and histological examination of livers was carried out. Vascular function was evaluated by measuring relaxation responses. Molecular mechanisms were also analyzed in isolated aorta. RESULTS Treatment with danshen aqueous extract reduced body weight gain, improved serum lipid profiles, and prevented formation of fatty liver induced by HFD and OVX. In addition, danshen could increase endothelial-dependent vasorelaxation and displayed vasoprotection in OVX rats fed with HFD, primarily by stimulating nitric oxide (NO) production, up-regulating the mRNA expression of endothelial NO synthase, and down-regulating the mRNA expression of tumor necrosis factor α, intercellular cell adhesion molecule-1, and vascular cell adhesion molecule-1 in the isolated aortas. CONCLUSIONS We conclude for the first time that danshen aqueous extract could protect OVX rats fed with HFD from endothelial dysfunction. Its effect may be related to its abilities to normalize serum lipid profiles and enhance NO availability in the vascular system. Our findings indicate that danshen aqueous extract could be a promising natural supplement for postmenopausal women for preventing CVD.
Collapse
|
22
|
Systems biology of meridians, acupoints, and chinese herbs in disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:372670. [PMID: 23118787 PMCID: PMC3483864 DOI: 10.1155/2012/372670] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 09/26/2012] [Indexed: 02/07/2023]
Abstract
Meridians, acupoints, and Chinese herbs are important components of traditional Chinese medicine (TCM). They have been used for disease treatment and prevention and as alternative and complementary therapies. Systems biology integrates omics data, such as transcriptional, proteomic, and metabolomics data, in order to obtain a more global and complete picture of biological activity. To further understand the existence and functions of the three components above, we reviewed relevant research in the systems biology literature and found many recent studies that indicate the value of acupuncture and Chinese herbs. Acupuncture is useful in pain moderation and relieves various symptoms arising from acute spinal cord injury and acute ischemic stroke. Moreover, Chinese herbal extracts have been linked to wound repair, the alleviation of postmenopausal osteoporosis severity, and anti-tumor effects, among others. Different acupoints, variations in treatment duration, and herbal extracts can be used to alleviate various symptoms and conditions and to regulate biological pathways by altering gene and protein expression. Our paper demonstrates how systems biology has helped to establish a platform for investigating the efficacy of TCM in treating different diseases and improving treatment strategies.
Collapse
|
23
|
Sun L, Zhao R, Zhang L, Zhang T, Xin W, Lan X, Huang C, Du G. Salvianolic acid A inhibits PDGF-BB induced vascular smooth muscle cell migration and proliferation while does not constrain endothelial cell proliferation and nitric oxide biosynthesis. Molecules 2012; 17:3333-47. [PMID: 22418933 PMCID: PMC6268737 DOI: 10.3390/molecules17033333] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 03/03/2012] [Accepted: 03/06/2012] [Indexed: 11/16/2022] Open
Abstract
Proliferation and migration of vascular smooth muscle cells (VSMCs) are critical events in the initiation and development of restenosis upon percutaneous transluminal coronary angioplasty (PTCA). Polyphenols have been suggested to ameliorate post-angioplasty restenosis. Salvianolic A (SalA) is one of the most abundant polyphenols extracted from salvia. In this study, we investigated the effect of salvianolic A (SalA) on the migration and proliferation of VSMCs. We found a preferential interaction of SalA with cellular systems that rely on the PDGF signal, but not on the EGF and bFGF signal. SalA inhibits PDGF-BB induced VSMC proliferation and migration in the concentration range from 0.01 to 0.1 μM. The inhibition of SalA on VSMC proliferation is associated with cell cycle arrest. We also found that SalA inhibits the PDGFRβ-ERK1/2 signaling cascade activated by PDGF-BB in VSMCs. In addition, SalA does not influence the proliferation of endothelial cells, the synthesis of NO and eNOS protein expression. Our results suggest that SalA inhibits migration and proliferation of VSMCs induced by PDGF-BB via the inhibition of the PDGFRβ-ERK1/2 cascade, but that it does not constrain endothelial cell proliferation and nitric oxide biosynthesis. Thus, the present study suggests a novel adjunct pharmacological strategy to prevent angioplasty-related restenosis.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Guanhua Du
- Author to whom correspondence should be addressed; ; Tel./Fax: +86-10-6316-5184
| |
Collapse
|
24
|
Pan TL, Wang PW, Leu YL, Wu TH, Wu TS. Inhibitory effects of Scutellaria baicalensis extract on hepatic stellate cells through inducing G2/M cell cycle arrest and activating ERK-dependent apoptosis via Bax and caspase pathway. JOURNAL OF ETHNOPHARMACOLOGY 2012; 139:829-837. [PMID: 22210104 DOI: 10.1016/j.jep.2011.12.028] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 12/14/2011] [Accepted: 12/16/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The bioactive components extracted from Scutellaria baicalensis Georgi (SB) have been widely used for anti-cancer, anti-oxidation, anti-inflammation and modulating the immune response. AIM OF THE STUDY The purpose of this study is to verify the inhibitory effect and the underlying mechanisms of Scutellaria baicalensis ethanol extract (SBEE) on activated hepatic stellate cells which play a central role in liver fibrogenesis. MATERIALS AND METHODS Dimethylnitrosamine (DMN)-administrated rat model was applied to evaluate the anti-fibrotic effect of SBEE in vivo. Flow cytometric analysis and immunoblotting were then used to further investigate the molecular mechanisms by which Scutellaria baicalensis extract induces HSC-T6 cell death. RESULTS Hepatic collagen contents and alpha-smooth muscle actin levels were remarkably reduced by treating with SBEE. 100 μg/mL SBEE-induced apoptosis of HSC-T6 cell was characterized with elevated levels of activated caspase-3, poly-(ADP-ribose) polymerase (PARP) cleavage, and release of cytochrome c into the cytosol in a time-dependent manner. A 24h treatment of SBEE induced G(2)/M cell cycle arrest with increased expression of p21 and downregulation of cdc2 and cyclin B1 protein levels. Again, SBEE induced bax expression with concomitant decrease of bcl-2 and upregulated the p53 and MAPK signaling in HSC-T6 cells. CONCLUSIONS These findings demonstrated that SBEE could prevent hepatic fibrosis by promoting ERK-p53 pathways which may in turn cause G(2)/M cell cycle arrest and activate caspase system resulting in final apoptosis of HSC-T6 cells.
Collapse
Affiliation(s)
- Tai-Long Pan
- School of Traditional Chinese Medicine,Chang Gung University; Liver Research Center,Chang Gung Memorial Hospital,Taoyuan,Taiwan.
| | | | | | | | | |
Collapse
|
25
|
Wu CY, Hsieh CY, Huang KE, Chang C, Kang HY. Cryptotanshinone down-regulates androgen receptor signaling by modulating lysine-specific demethylase 1 function. Int J Cancer 2011; 131:1423-34. [PMID: 22052438 DOI: 10.1002/ijc.27343] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Accepted: 10/25/2011] [Indexed: 11/08/2022]
Abstract
Development and progression of prostate cancer are intimately associated with androgen receptor (AR) signaling. The emergence of hormone-refractory prostate cancer and consequent failure of conventional androgen deprivation therapies make it necessary to bypass hormonal resistance by targeting the same signaling pathway at new intervention points. In our study, we showed that cryptotanshinone inhibited the growth of AR-positive prostate cancer cells, suggesting that cryptotanshinone affected AR function. Cryptotanshinone also profoundly inhibited the transcriptional activity of AR and suppressed the expression of several AR-target genes at the mRNA and the protein levels. At the molecular level, cryptotanshinone disrupted the interaction between AR and lysine-specific demethylase 1 (LSD1), and inhibited the complex of AR and LSD1 to the promoter of AR target genes without affecting the protein degradation and translocation of AR. Cryptotanshinone increased the mono-methyl and di-methylation of Histone H3 lysine 9 (H3K9), a repressive histone marker which is demethylated and activated by LSD1. These data suggest that cryptotanshinone functions via inhibition of LSD1, a protein that promotes AR-dependent transcriptional activity via derepression of H3K9. In summary, we describe a novel mechanism whereby cryptotanshinone down-regulates AR signaling via functional inhibition of LSD1-mediated demethylation of H3K9 and represses the transcriptional activity of AR. Our data suggest that cryptotanshinone can be developed as a potential therapeutic agent for prostate cancer.
Collapse
Affiliation(s)
- Ching-Yuan Wu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | | | | | | | | |
Collapse
|
26
|
Wu P, Zhang H, Qi L, Tang Q, Tang Y, Xie Z, Lv Y, Zhao S, Jiang W. Identification of ERp29 as a biomarker for predicting nasopharyngeal carcinoma response to radiotherapy. Oncol Rep 2011; 27:987-94. [PMID: 22160175 PMCID: PMC3583588 DOI: 10.3892/or.2011.1586] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Accepted: 11/15/2011] [Indexed: 12/24/2022] Open
Abstract
Radioresistance continues to be a major problem in the treatment of nasopharyngeal carcinoma (NPC). This study aimed to identify novel proteins associated with NPC radio-resistance. We used a mass spectrometry driven-proteomic strategy to identify novel proteins associated with NPC radio-resistance, and differential proteins were subsequently processed by bio-informatic analysis. As a result, twelve proteins were identified with aberrant expression in radioresistant (RR) NPC tissues compare to radiosensitive (RS) NPC tissues. Among these proteins, ERp29, Mn-SOD, HSP27 and GST ω1 were found to be significantly up-regulated in RR NPC tissues, and ERp29 was selected for further validation. Immunohistochemistry analysis confirmed that ERp29 was overexpressed in RR NPC tissues compared with RS NPC tissues. To prove the role of ERp29 in the induction of NPC radioresistance, ERp29 was down-regulated in the ERp29 enriched NPC cells CNE-1 and 6-10B by specific shRNA. Radiosensitivity was measured using cell proliferation assay and clonogenic survival assay, and cell apoptosis was measured using flow cytometric analysis. We found that ERp29 knockdown attenuated CNE-1 and 6-10B cell radioresistance and enhanced cell apoptosis. These results suggest that ERp29 associates with radioresistance in NPC, and ERp29 could be a potential biomarker for predicting NPC response to radiotherapy.
Collapse
Affiliation(s)
- Ping Wu
- Department of Otolaryngology, Xiangya Hospital, Central South University, Changsha 410008, PR China
| | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Evaluation of the antioxidant potential of Salvia miltiorrhiza ethanol extract in a rat model of ischemia-reperfusion injury. Molecules 2011; 16:10002-12. [PMID: 22138858 PMCID: PMC6264289 DOI: 10.3390/molecules161210002] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 11/24/2011] [Accepted: 11/25/2011] [Indexed: 12/03/2022] Open
Abstract
The present study was undertaken to evaluate the protection potential of ethanol extract of Salvia miltiorrhiza (SMEE) against oxidative injury in the ischemia-reperfusion (I/R) model of rats in vivo. Rats were divided into six groups of 10 rats each. Group I/R model and sham were fed with a standard rat chow, groups SMEE I and SMEE II were fed with a standard rat chow and 400 or 800 mg/kg b.w. ethanol extract for 12 days before the beginning of I/R studies. Positive control group was fed with a standard rat chow and salvianolic acid B (55 mg/kg b.w.) or tanshinone II-A (55 mg/kg b.w.) for 12 days before the beginning of I/R studies. To produce I/R, the left anterior descending artery (LAD) was occluded in anesthetized rats for 15 min, followed by 120 min reperfusion. Infarct sizes were found significantly decreased in SMEE-treated and positive control groups compared to I/R model group. Serum AST, LDH and CK-MB activities were significantly reduced and myocardium Na+-K+ ATPase, Ca2+-Mg2+ ATPase activities and antioxidant enzyme activities (SOD, CAT, GSH-Px) were markedly increased in SMEE-treated and salvianolic acid B or tanshinone II-A positive control groups compared to the I/R model group. Pretreatment of S. miltiorrhiza ethanol extract and salvianolic acid B or tanshinone II-A dose-dependently reduced significantly myocardium MDA level, ROS and NOS activities and enhanced myocardium GSH level in I/R rats compared to I/R rats model. In conclusion, we clearly demonstrated that S. miltiorrhiza ethanol extract pretreatment can decrease oxidative injury in rats subjected to myocardial I/R.
Collapse
|
28
|
Ho JHC, Hong CY. Salvianolic acids: small compounds with multiple mechanisms for cardiovascular protection. J Biomed Sci 2011; 18:30. [PMID: 21569331 PMCID: PMC3113734 DOI: 10.1186/1423-0127-18-30] [Citation(s) in RCA: 184] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Accepted: 05/11/2011] [Indexed: 12/14/2022] Open
Abstract
Salvianolic acids are the most abundant water-soluble compounds extracted from Radix Salvia miltiorrhiza (Danshen). In China, Danshen has been wildly used to treat cardiovascular diseases for hundreds of years. Salvianolic acids, especially salvianolic acid A (Sal A) and salvianolic acid B (Sal B), have been found to have potent anti-oxidative capabilities due to their polyphenolic structure. Recently, intracellular signaling pathways regulated by salvianolic acids in vascular endothelial cells, aortic smooth muscle cells, as well as cardiomyocytes, have been investigated both in vitro and in vivo upon various cardiovascular insults. It is discovered that the cardiovascular protection of salvianolic acids is not only because salvianolic acids act as reactive oxygen species scavengers, but also due to the reduction of leukocyte-endothelial adherence, inhibition of inflammation and metalloproteinases expression from aortic smooth muscle cells, and indirect regulation of immune function. Competitive binding of salvianolic acids to target proteins to interrupt protein-protein interactions has also been found to be a mechanism of cardiovascular protection by salvianolic acids. In this article, we review a variety of studies focusing on the above mentioned mechanisms. Besides, the target proteins of salvianolic acids are also described. These results of recent advances have shed new light to the development of novel therapeutic strategies for salvianolic acids to treat cardiovascular diseases.
Collapse
Affiliation(s)
- Jennifer Hui-Chun Ho
- Graduate Institute of Clinical Medicine, Taipei Medical University, and Department of Ophthalmology, Wang Fang Hospital, Taipei, Taiwan
| | | |
Collapse
|
29
|
Qian Q, Qian S, Fan P, Huo D, Wang S. Effect of Salvia miltiorrhiza Hydrophilic Extract on Antioxidant Enzymes in Diabetic Patients with Chronic Heart Disease: A Randomized Controlled Trial. Phytother Res 2011; 26:60-6. [PMID: 21544882 DOI: 10.1002/ptr.3513] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2010] [Revised: 03/22/2011] [Accepted: 03/22/2011] [Indexed: 02/02/2023]
Affiliation(s)
- Qingwen Qian
- Department of Medicine, 1st Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China.
| | | | | | | | | |
Collapse
|
30
|
Inhibiting ERp29 expression enhances radiosensitivity in human nasopharyngeal carcinoma cell lines. Med Oncol 2011; 29:721-8. [PMID: 21479953 DOI: 10.1007/s12032-011-9929-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Accepted: 03/22/2011] [Indexed: 01/23/2023]
Abstract
ERp29 is an endoplasmic reticulum (ER) stress-inducible protein. It was found that ERp29 was highly expressed in several cancers and associated with resistance to oxidative and radiation stress, which may serve as a novel target for nasopharyngeal carcinoma (NPC) anticancer approach. In this study, we used immunohistochemistry to detect ERp29 expression in radioresistant and radiosensitive NPC tissues. As a result, ERp29 was up-regulated in radioresistant NPC tissues compared to radiosensitive NPC tissues. We also found that ERp29 knockdown attenuated radioresistance of NPC CNE-1 cells and ERp29 overexpression enhanced radioresistance of NPC CNE-2 cells. When exposed to radiation, ERp29 knockdown CNE-1 cells increased radiation-induced cell apoptosis and ERp29 overexpression CNE-2 cells reduced radiation-induced cell apoptosis. Further, we demonstrated that ERp29 up-regulated the expression of Hsp27. In conclusion, our study supports ERp29 could potentiate resistance to radiation in NPC cells, targeting of ERp29 is a rational strategy in treating radioresistant NPC.
Collapse
|
31
|
Yang TL, Lin FY, Chen YH, Chiu JJ, Shiao MS, Tsai CS, Lin SJ, Chen YL. Salvianolic acid B inhibits low-density lipoprotein oxidation and neointimal hyperplasia in endothelium-denuded hypercholesterolaemic rabbits. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2011; 91:134-141. [PMID: 20824680 DOI: 10.1002/jsfa.4163] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Revised: 07/24/2010] [Accepted: 08/11/2010] [Indexed: 05/29/2023]
Abstract
BACKGROUND Atherosclerosis and restenosis are inflammatory responses involving free radicals and lipid peroxidation and may be prevented/cured by antioxidant-mediated lipid peroxidation inhibition. Salvianolic acid (Sal B), a water-soluble antioxidant obtained from a Chinese medicinal herb, is believed to have multiple preventive and therapeutic effects against human vascular diseases. In this study the in vitro and in vivo inhibitory effects of Sal B on oxidative stress were determined. RESULTS In human aortic endothelial cells (HAECs), Sal B reduced oxidative stress, inhibited low-density lipoprotein (LDL) oxidation and reduced oxidised LDL-induced cytotoxicity. Sal B inhibited Cu(2+) -induced LDL oxidation in vitro (with a potency 16.3 times that of probucol) and attenuated HAEC-mediated LDL oxidation as well as reactive oxygen species (ROS) production. In cholesterol-fed New Zealand White rabbits (with probucol as positive control), Sal B intake reduced Cu(2+) -induced LDL oxidation, lipid deposition in the thoracic aorta, intimal thickness of the aortic arch and thoracic aorta and neointimal formation in the abdominal aorta. CONCLUSION The data obtained in this study suggest that Sal B protects HAECs from oxidative injury-mediated cell death via inhibition of ROS production. The antioxidant activity of Sal B may help explain its efficacy in the treatment of vascular diseases.
Collapse
Affiliation(s)
- Tung-Lin Yang
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Cecchettini A, Rocchiccioli S, Boccardi C, Citti L. Vascular smooth-muscle-cell activation: proteomics point of view. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2011; 288:43-99. [PMID: 21482410 DOI: 10.1016/b978-0-12-386041-5.00002-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Vascular smooth-muscle cells (VSMCs) are the main component of the artery medial layer. Thanks to their great plasticity, when stimulated by external inputs, VSMCs react by changing morphology and functions and activating new signaling pathways while switching others off. In this way, they are able to increase the cell proliferation, migration, and synthetic capacity significantly in response to vascular injury assuming a more dedifferentiated state. In different states of differentiation, VSMCs are characterized by various repertories of activated pathways and differentially expressed proteins. In this context, great interest is addressed to proteomics technology, in particular to differential proteomics. In recent years, many authors have investigated proteomics in order to identify the molecular factors putatively involved in VSMC phenotypic modulation, focusing on metabolic networks linking the differentially expressed proteins. Some of the identified proteins may be markers of pathology and become useful tools of diagnosis. These proteins could also represent appropriately validated targets and be useful either for prevention, if related to early events of atherosclerosis, or for treatment, if specific of the acute, mid, and late phases of the pathology. RNA-dependent gene silencing, obtained against the putative targets with high selective and specific molecular tools, might be able to reverse a pathological drift and be suitable candidates for innovative therapeutic approaches.
Collapse
|
33
|
Wang HC, Brumaghim JL. Polyphenol Compounds as Antioxidants for Disease Prevention: Reactive Oxygen Species Scavenging, Enzyme Regulation, and Metal Chelation Mechanisms in E. coliand Human Cells. ACS SYMPOSIUM SERIES 2011. [DOI: 10.1021/bk-2011-1083.ch005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hsiao C. Wang
- Chemistry Department, Clemson University, Clemson, South Carolina 29634-0973
| | - Julia L. Brumaghim
- Chemistry Department, Clemson University, Clemson, South Carolina 29634-0973
| |
Collapse
|
34
|
Zhang D, Richardson DR. Endoplasmic reticulum protein 29 (ERp29): An emerging role in cancer. Int J Biochem Cell Biol 2010; 43:33-6. [PMID: 20920593 DOI: 10.1016/j.biocel.2010.09.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2010] [Revised: 09/15/2010] [Accepted: 09/24/2010] [Indexed: 12/17/2022]
Abstract
The endoplasmic reticulum protein 29 (ERp29) is a molecule that facilitates processing and transport of proteins in the early secretory pathway. Structural and functional analyses have suggested a biological role as a putative chaperone in the endoplasmic reticulum. The N-terminal domain of ERp29 resembles the thioredoxin domain of protein disulfide isomerase, but lacks its redox-active function due to the absence of an active motif consisting of double cysteines. In the context of carcinogenesis, the role of ERp29 in cancer progression has not been fully elucidated. However, recent studies indicate that high expression of ERp29 inversely correlates to tumor progression. In addition, over-expression of ERp29 significantly inhibits proliferation and suppresses tumorigenesis by modulating ER stress signaling and the mesenchymal-epithelial transition in breast cancer cells. In this review, we summarize the biological properties of ERp29 and its novel function as a tumor suppressor.
Collapse
Affiliation(s)
- Daohai Zhang
- Iron Metabolism and Chelation Program, Department of Pathology and Bosch Institute, School of Medical Sciences, University of Sydney, Sydney, New South Wales 2006, Australia.
| | | |
Collapse
|
35
|
Prins JM, George KM, Thompson CM. Paraoxon-induced protein expression changes to SH-SY5Y cells. Chem Res Toxicol 2010; 23:1656-62. [PMID: 20931991 DOI: 10.1021/tx100192f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
SH-SY5Y neuroblastoma cells were examined to determine changes in protein expression following exposure to the organophosphate paraoxon (O,O-diethyl-p-nitrophenoxy phosphate). Exposure of SH-SY5Y cells to paraoxon (20 μM) for 48 h showed no significant change in cell viability as established using an MTT assay. Protein expression changes from the paraoxon-treated SH-SY5Y cells were determined using a comparative, subproteome approach by fractionation into cytosolic, membrane, nuclear, and cytoskeletal fractions. The fractionated proteins were separated by 2D-PAGE, identified by MALDI-TOF mass spectrometry, and expression changes determined by densitometry. Over 400 proteins were separated from the four fractions, and 16 proteins were identified with altered expression ≥1.3-fold including heat shock protein 90 (-1.3-fold), heterogeneous nuclear ribonucleoprotein C (+2.8-fold), and H(+) transporting ATP synthase beta chain (-3.1-fold). Western blot analysis conducted on total protein isolates confirmed the expression changes in these three proteins.
Collapse
Affiliation(s)
- John M Prins
- The Center for Structural and Functional Neuroscience, Department of Biomedical and Pharmaceutical Sciences, The University of Montana, Missoula, Montana 59812, USA
| | | | | |
Collapse
|
36
|
Zhang D, Putti TC. Over-expression of ERp29 attenuates doxorubicin-induced cell apoptosis through up-regulation of Hsp27 in breast cancer cells. Exp Cell Res 2010; 316:3522-31. [PMID: 20833165 DOI: 10.1016/j.yexcr.2010.08.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 08/27/2010] [Accepted: 08/29/2010] [Indexed: 12/15/2022]
Abstract
The endoplasmic reticulum protein 29 (ERp29) has a critical role in regulating protein folding, maturation and secretion. However, its role in carcinogenesis remains elusive. Recently, we reported that ERp29 is a novel tumor suppressor and regulates mesenchymal-epithelial transition in MDA-MB-231 breast cancer cells. Here, we investigated whether ERp29 plays a role in the response of breast cancer cells to chemotherapeutic agents. We found that expression of ERp29 increased the resistance to doxorubicin, but not cisplatin and paclitaxel, and decreased the doxorubicin-induced cell apoptosis in MDA-MB-231 cells, whereas knockdown of ERp29 in MCF-7 cells increased the doxorubicin cytotoxicity. A proteomics study identified up-regulation of Hsp27 and down-regulation of stathmin-1, galectin and prohibitin in the doxorubicin-resistant, ERp29 over-expressing MDA-MB-231 cells. Further, we demonstrated that ERp29 up-regulated expression of Hsp27 by down-regulating eukaryotic translational initiation factor 2α (eIF2α). When Hsp27 was knocked down by siRNA in the doxorubicin-resistant, ERp29 over-expressing MDA-MB-231 cells and parental MCF-7 cells, cell viability was significantly decreased and doxorubicin-induced cell apoptosis was enhanced. These results indicate that Hsp27 is involved in the ERp29-mediated resistance to doxorubicin. Therefore, targeting of Hsp27, with a combination of other chemotherapeutic agents, is a rational strategy in treating doxorubicin-resistant cancer cells.
Collapse
Affiliation(s)
- Daohai Zhang
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
| | | |
Collapse
|