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Owen C, Fader KA, Hassanein M. Western blotting: evolution of an old analytical method to a new quantitative tool for biomarker measurements. Bioanalysis 2024; 16:319-328. [PMID: 38348662 DOI: 10.4155/bio-2023-0212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024] Open
Abstract
Western blotting (WB) is a widely used laboratory technique for detecting specific proteins in biological matrices. Recent advances in antibody production, automation, gel and membrane manufacturing and highly sensitive detection platforms have transformed WB from a labor-intensive and qualitative method into a highly reproducible and quantitative assay suitable for biomarker detection. Despite these significant improvements in the capabilities and efficiency of WB, there remain challenges that hinder its widespread application as a research, diagnostic (in two-tiered assays like Lyme disease testing) and drug development tool. This article describes recent innovations introduced to WB methodology and the remaining challenges that prevent its wider adoption for biomarker measurements throughout the drug development process.
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Affiliation(s)
- Carolina Owen
- Early Clinical Development, Precision Medicine, Pfizer Inc., 445 Eastern Point Rd, Groton, CT 06340, USA
| | - Kelly A Fader
- Early Clinical Development, Precision Medicine, Pfizer Inc., 445 Eastern Point Rd, Groton, CT 06340, USA
| | - Mohamed Hassanein
- Early Clinical Development, Precision Medicine, Pfizer Inc., 1 Portland St, Cambridge, MA 02139, USA
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Li J, Dai F, Kou X, Wu B, Xu J, He S. β-Actin: An Emerging Biomarker in Ischemic Stroke. Cell Mol Neurobiol 2023; 43:683-696. [PMID: 35556192 DOI: 10.1007/s10571-022-01225-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 04/10/2022] [Indexed: 11/03/2022]
Abstract
At present, the diagnosis of ischemic stroke mainly depends on neuroimaging technology, but it still has many limitations. Therefore, it is very important to find new biomarkers of ischemic stroke. Recently, β-actin has attracted extensive attention as a biomarker of a variety of cancers. Although several recent studies have been investigating its role in ischemic stroke and other cerebrovascular diseases, the understanding of this emerging biomarker in neurology is still limited. We examined human and preclinical studies to gain a comprehensive understanding of the literature on the subject. Most relevant literatures focus on preclinical research, and pay more attention to the role of β-actin in the process of cerebral ischemia, but some recent literatures reported that in human studies, serum β-actin increased significantly in the early stage of acute cerebral ischemia. This review will investigate the basic biology of β-actin, pay attention to the potential role of serum β-actin as an early diagnostic blood biomarker of ischemic stroke, and explore its potential mechanism in ischemic stroke and new strategies for stroke treatment in the future.
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Affiliation(s)
- Jiaqian Li
- Department of Neurology, School of Medicine, Zhoushan Hospital, Zhejiang University, Zhoushan, 316000, Zhejiang Province, China
| | - Fangyu Dai
- Department of Neurology, School of Medicine, Zhoushan Hospital, Zhejiang University, Zhoushan, 316000, Zhejiang Province, China
| | - Xuelian Kou
- Department of Neurology, School of Medicine, Zhoushan Hospital, Zhejiang University, Zhoushan, 316000, Zhejiang Province, China
| | - Bin Wu
- Department of Neurology, School of Medicine, Zhoushan Hospital, Zhejiang University, Zhoushan, 316000, Zhejiang Province, China
| | - Jie Xu
- Department of Neurology, School of Medicine, Zhoushan Hospital, Zhejiang University, Zhoushan, 316000, Zhejiang Province, China
| | - Songbin He
- Department of Neurology, School of Medicine, Zhoushan Hospital, Zhejiang University, Zhoushan, 316000, Zhejiang Province, China.
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Manaf NA, Wahab AA, Rasheed HA, Aziz MNC, Salim MIM, Sahalan M, Hum YC, Lai KW. Investigation of single beam ultrasound sensitivity as a monitoring tool for local hyperthermia treatment in breast cancer. MULTIMEDIA TOOLS AND APPLICATIONS 2023; 82:5011-5030. [DOI: 10.1007/s11042-021-11845-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 09/17/2021] [Accepted: 12/23/2021] [Indexed: 09/01/2023]
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Nguyen CD, Yoo J, An EJ, Sung CY, Jeong DH, Park SY, Kim JH, Lee G. Pharmacokinetic improvement provided by microneedle patch in delivering bee venom, a case study in combating scopolamine-induced neurodegeneration in mouse model. Drug Deliv 2022; 29:2855-2867. [PMID: 36065088 PMCID: PMC9448392 DOI: 10.1080/10717544.2022.2116129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Much research has shown Bee venom to be an effective neuroprotective agent. However, the usual transdermal injection of bee venom poses many pharmacokinetic disadvantages. Here, we compared the administration of bee venom via subcutaneous injection (SC) and via Microneedle patch (MN). Both administrated routes produce significant recovery effects, however: the MN significantly prolongs the bio-significant-and-yet-lower concentration of bee venom in mice bodies. In contrast, SC could produce only a short period of much higher bee venom levels in the blood and brain. We also see that due to the concentration-response-curve of bee venom (represented by melittin): mice bodies do not require much higher bee venom concentration (seen in the SC group) to produce a much more significant neuroprotective effect (than seen in those treated with the MN method). Therefore, a MN could maintain bee venom levels in mice bodies at lower-yet-more-efficient concentrations. This is important, as bee venom can cause more adverse effects and pain sensations, at higher concentrations. For the first time, we confirmed that the pharmacokinetic advantages of MN delivered bee venom also guarantee a holistic neuroprotection effect (which was shown by SC delivered bee venom in previous research). This was proven via the results of the water maze experiments for long-term learning memory assessment and protein analysis of key neuronal regulatory proteins: BDNF, p-CREB, iNOS, and mArhR 1. In conclusion, for situations where we ought to administrate drugs at a more downward amount, such as bee venom, MN can keep the therapeutic concentrations at a lower, yet interestingly, more-efficient level.
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Affiliation(s)
- Cong Duc Nguyen
- College of Korean Medicine, Dongshin University, Naju, Korea
| | - Jaehee Yoo
- Department of Acupuncture and Moxibustion Medicine, College of Korean Medicine, Dongshin University, Naju,Gwangju, Korea
| | | | | | | | - Soo-Yeon Park
- Department of Ophthalmology, Otolaryngology & Dermatology, College of Korean Medicine, Dongshin University, Naju, Korea
| | - Jae-Hong Kim
- Department of Acupuncture and Moxibustion Medicine, College of Korean Medicine, Dongshin University, Naju,Gwangju, Korea
| | - Gihyun Lee
- College of Korean Medicine, Dongshin University, Naju, Korea
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Bagalagel AA, El-hawary SS, Alaaeldin R, Elmaidomy AH, Altemani FH, Waggas DS, Algehainy NA, Saeedi NH, Alsenani F, Mokhtar FA, Elrehany MA, Al-Sanea MM, Abdelmohsen UR. The Protective and Therapeutic Anti-Alzheimer Potential of Olea europaea L. cv. Picual: An In Silico and In Vivo Study. Metabolites 2022; 12:metabo12121178. [PMID: 36557216 PMCID: PMC9784889 DOI: 10.3390/metabo12121178] [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: 10/10/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/29/2022] Open
Abstract
LC-HRESIMS metabolomic profiling of Olea europaea L. cv. Picual (OEP) (Saudi Arabian olive cultivar, F. Oleacea) revealed 18 compounds. Using pharmacology networking to specify the targets of the identified compounds with a relationship to Alzheimer's disease, it was possible to identify the VEGFA, AChE, and DRD2 genes as the top correlated genes to Alzheimer's disease with 8, 8, and 6 interactions in the same order. The mechanism of action on cellular components, biological processes, and molecular functions was determined by gene enrichment analysis. A biological pathway comparison revealed 13 shared pathways between the identified genes and Alzheimer protein genes (beta-amyloid band tau proteins). The suggested extract's anti-Alzheimer potential in silico screening was confirmed through in vivo investigation in regressing the neurodegenerative features of Alzheimer's dementia in an aluminum-intoxicated rat model (protective and therapeutic effects, 100 mg/kg b.w.). In vivo results suggested that OEP extract significantly improved Alzheimer's rats, which was indicated by the crude extract's ability to improve T-maze performance; lower elevated serum levels of AChE, AB peptide, and Ph/T ratio; and normalize the reduced level of TAC during the study. The results presented in this study may provide potential dietary supplements for the management of Alzheimer's disease.
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Affiliation(s)
- Alaa A. Bagalagel
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Seham S. El-hawary
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Giza 11562, Egypt
| | - Rania Alaaeldin
- Department of Biochemistry, Faculty of Pharmacy, Deraya University, University Zone, New Minia City 61111, Egypt
| | - Abeer H. Elmaidomy
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Faisal H. Altemani
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Dania S. Waggas
- Pathological Sciences Departments, Fakeeh College for Medical Sciences, Jeddah 21461, Saudi Arabia
| | - Naseh A. Algehainy
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Nizar H. Saeedi
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Faisal Alsenani
- Department of Pharmacognosy, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Fatma A. Mokhtar
- Department of Pharmacognosy, Faculty of Pharmacy, ALSalam University, Kafr El Zayat 31616, Egypt
| | - Mahmoud A. Elrehany
- Department of Biochemistry, Faculty of Pharmacy, Deraya University, University Zone, New Minia City 61111, Egypt
| | - Mohammad M. Al-Sanea
- Pharmaceutical Chemistry Department, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, 7 Universities Zone, New Minia 61111, Egypt
- Correspondence:
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BlotIt—Optimal alignment of Western blot and qPCR experiments. PLoS One 2022; 17:e0264295. [PMID: 35947551 PMCID: PMC9365137 DOI: 10.1371/journal.pone.0264295] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 07/04/2022] [Indexed: 11/20/2022] Open
Abstract
Biological systems are frequently analyzed by means of mechanistic mathematical models. In order to infer model parameters and provide a useful model that can be employed for systems understanding and hypothesis testing, the model is often calibrated on quantitative, time-resolved data. To do so, it is typically important to compare experimental measurements over broad time ranges and various experimental conditions, e.g. perturbations of the biological system. However, most of the established experimental techniques such as Western blot, or quantitative real-time polymerase chain reaction only provide measurements on a relative scale, since different sample volumes, experimental adjustments or varying development times of a gel lead to systematic shifts in the data. In turn, the number of measurements corresponding to the same scale enabling comparability is limited. Here, we present a new flexible method to align measurement data that obeys different scaling factors and compare it to existing normalization approaches. We propose an alignment model to estimate these scaling factors and provide the possibility to adapt this model depending on the measurement technique of interest. In addition, an error model can be specified to adequately weight the different data points and obtain scaling-model based confidence intervals of the finally scaled data points. Our approach is applicable to all sorts of relative measurements and does not need a particular experimental condition that has been measured over all available scales. An implementation of the method is provided with the R package blotIt including refined ways of visualization.
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Sun W, Liu J, Zhao R, Yang T, Zheng Z, Zhang T, Wang G. Knockdown of IFNAR2 reduces the inflammatory response in mouse model of type 1 diabetes. Biochem Biophys Res Commun 2022; 619:9-14. [PMID: 35728283 DOI: 10.1016/j.bbrc.2022.06.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/08/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND and Purpose: To investigate the biological role of interferon α/β receptor 2 (IFNAR2) in type 1 diabetes (T1D). METHODS First, IFNAR2 mRNA and protein expression levels in serum of T1D patients and healthy controls were detected by RT-qPCR and Western blot. For experimental studies, 80 male C57BL/6 mice were randomly divided into 4 groups with 20 mice in each group: the control group, the T1D group, the T1D + ad-con group and the T1D + ad-si-IFNAR2 group. The T1D mouse model was generated by multiple intraperitoneal injections of small doses of streptozotocin (STZ). Body weight and blood glucose levels were measured weekly until 6 weeks. After 6 weeks, all mice were sacrificed and the levels of insulin (Ins), tumor necrosis factor α (TNF-α), interleukin 4 (IL-4), IL-6, and type I interferon γ (IFN-γ), IFNAR2 protein expression, the number of dendritic cells (DCs), and changes in islet β cells were assessed. RESULTS IFNAR2 mRNA and protein expression levels in serum of T1D patients were significantly higher than those in healthy controls (P < 0.05). Furthermore, IFNAR2 protein expression, number of DCs, and IFNAR2 mRNA, blood glucose, TNF-α, and IFN-γ levels were significantly upregulated in T1D mice compared with the control group (P < 0.05), while weight, and Ins, IL-6, and IL-4 levels were decreased (P < 0.05). However, knockdown of IFNAR2 reversed these trends. There was no significant difference in markers between the T1D + ad-con group and the T1D group (P > 0.05). CONCLUSIONS Knockdown of IFNAR2 reduced the inflammatory response and improved islet function of T1D mice.
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Affiliation(s)
- Wei Sun
- Department of Clinical Laboratory, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, The Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, JiangSu, 222061, China
| | - Jing Liu
- Management of Hospital Infection, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, The Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, JiangSu, 222061, China
| | - Renhao Zhao
- Department of Endocrinology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, The Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, JiangSu, 222061, China
| | - Teng Yang
- Department of Endocrinology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, The Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, JiangSu, 222061, China
| | - Zhichen Zheng
- Department of Endocrinology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, The Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, JiangSu, 222061, China
| | - Tongyu Zhang
- Department of Endocrinology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, The Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, JiangSu, 222061, China
| | - Guofeng Wang
- Department of Endocrinology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, The Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, JiangSu, 222061, China.
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Taxifolin and Lucidin as Potential E6 Protein Inhibitors: p53 Function Re-Establishment and Apoptosis Induction in Cervical Cancer Cells. Cancers (Basel) 2022; 14:cancers14122834. [PMID: 35740499 PMCID: PMC9221127 DOI: 10.3390/cancers14122834] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/29/2022] [Accepted: 06/06/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Human papillomavirus (HPV)-related cancers continue to be a major medical concern, and there exists an urgent need to improve the current therapeutic approaches by combining strategies or proposing new compounds to offer more specific and less invasive treatments. The aim of this work was to discover potential inhibitors of the E6/E6AP/p53 complex formation. We started this work with an initial in silico approach including molecular docking and molecular dynamics simulations, and these tools allowed us to select potential inhibitors, using E6 protein as a target. In addition, we found that lucidin and taxifolin were able to selectively decrease the viability of HPV-positive cells to re-establish p53 protein levels and to induce apoptosis. These findings represent a promising starting point for the development of anti-HPV drugs. Abstract Cervical cancer is the fourth leading cause of death in women worldwide, with 99% of cases associated with a human papillomavirus (HPV) infection. Given that HPV prophylactic vaccines do not exert a therapeutic effect in individuals previously infected, have low coverage of all HPV types, and have poor accessibility in developing countries, it is unlikely that HPV-associated cancers will be eradicated in the coming years. Therefore, there is an emerging need for the development of anti-HPV drugs. Considering HPV E6’s oncogenic role, this protein has been proposed as a relevant target for cancer treatment. In the present work, we employed in silico tools to discover potential E6 inhibitors, as well as biochemical and cellular assays to understand the action of selected compounds in HPV-positive cells (Caski and HeLa) vs. HPV-negative (C33A) and non-carcinogenic (NHEK) cell lines. In fact, by molecular docking and molecular dynamics simulations, we found three phenolic compounds able to dock in the E6AP binding pocket of the E6 protein. In particular, lucidin and taxifolin were able to inhibit E6-mediated p53 degradation, selectively reduce the viability, and induce apoptosis in HPV-positive cells. Altogether, our data can be relevant for discovering promising leads for the development of specific anti-HPV drugs.
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Almuslehi MSM, Sen MK, Shortland PJ, Mahns DA, Coorssen JR. Histological and Top-Down Proteomic Analyses of the Visual Pathway in the Cuprizone Demyelination Model. J Mol Neurosci 2022; 72:1374-1401. [PMID: 35644788 PMCID: PMC9170674 DOI: 10.1007/s12031-022-01997-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 03/07/2022] [Indexed: 10/27/2022]
Abstract
Abstract
A change in visual perception is a frequent early symptom of multiple sclerosis (MS), the pathoaetiology of which remains unclear. Following a slow demyelination process caused by 12 weeks of low-dose (0.1%) cuprizone (CPZ) consumption, histology and proteomics were used to investigate components of the visual pathway in young adult mice. Histological investigation did not identify demyelination or gliosis in the optic tracts, pretectal nuclei, superior colliculi, lateral geniculate nuclei or visual cortices. However, top-down proteomic assessment of the optic nerve/tract revealed a significant change in the abundance of 34 spots in high-resolution two-dimensional (2D) gels. Subsequent liquid chromatography-tandem mass spectrometry (LC-TMS) analysis identified alterations in 75 proteoforms. Literature mining revealed the relevance of these proteoforms in terms of proteins previously implicated in animal models, eye diseases and human MS. Importantly, 24 proteoforms were not previously described in any animal models of MS, eye diseases or MS itself. Bioinformatic analysis indicated involvement of these proteoforms in cytoskeleton organization, metabolic dysregulation, protein aggregation and axonal support. Collectively, these results indicate that continuous CPZ-feeding, which evokes a slow demyelination, results in proteomic changes that precede any clear histological changes in the visual pathway and that these proteoforms may be potential early markers of degenerative demyelinating conditions.
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Chen Y, Li X, Lai W, Zhu F, Tan X, Xian W, Kang P, Wang H. [RIP1/RIP3-MLKL signaling pathway correlates with occurrence, progression and prognosis of chronic heart failure]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:1534-1539. [PMID: 34755669 DOI: 10.12122/j.issn.1673-4254.2021.10.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To detect plasma levels of receptor-interacting protein kinase 1 (RIP1), RIP3 and mixed lineage kinase domain-like protein (MLKL) in patients with chronic heart failure and explore the expression pattern of programmed necrosis signaling pathway RIP1/RIP3-MLKL in the progression of heart failure. METHODS The patients with chronic heart failure (NYHA class Ⅱ-Ⅳ) admitted in our hospital between February, 2020 and March, 2021 were prospectively enrolled in this study, with 21 healthy volunteers as the control group. The enrolled patients included 20 with grade Ⅱ, 33 with grade Ⅲ, and 43 with grade Ⅳ cardiac function. Fasting venous blood was collected from all the participants for detecting plasma levels of RIP1, RIP3, and MLKL and protein expressions of RIP1/RIP3-MLKL pathway using enzyme-linked immunosorbent assay (ELISA) and Western blotting. The patients with grade Ⅳ cardiac function were followed up for 5 months to evaluate the clinical prognostic indicators. RESULTS Compared with the healthy volunteers, the patients with grade Ⅱ, Ⅲ and Ⅳ cardiac function had significantly increased plasma levels of RIP1, RIP3, and MLKL (P < 0.01), and their levels were significantly higher in grade Ⅲ/Ⅳ patients than in those with grade Ⅱ cardiac function (P < 0.01); the plasma levels of RIP1 and MLKL were significantly higher in grade Ⅳ patients than in grade Ⅲ patients (P < 0.05). The results of Western blotting also showed increased expressions of the proteins in the RIP1/RIP3-MLKL pathway in patients with heart failure. Pearson correlation analysis suggested that in patients with heart failure, the expression levels of RIP1, RIP3, and MLKL were positively correlated with SCR, AST, LVEDD and NT-proBNP (P < 0.05). Follow-up study of the patients with grade Ⅳ cardiac function showed that higher expression levels of RIP1/RIP3-MLKL were associated with a poorer prognosis of the patients. CONCLUSION The expressions of RIP1, RIP3 and MLKL are significantly upregulated in patients with heart failure in positive correlation with the severity of the disease condition, and the activation of the RIP1/RIP3-MLKL signaling pathway may contribute to the occurrence, development and prognosis of chronic heart failure.
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Affiliation(s)
- Y Chen
- Department of Cardiology, First Affiliated Hospital, Bengbu Medical College, Bengbu 233000, China.,Cardiovascular and Cerebrovascular Disease Research Center, Bengbu Medical College, Bengbu 233000, China
| | - X Li
- Department of Cardiology, First Affiliated Hospital, Bengbu Medical College, Bengbu 233000, China.,Cardiovascular and Cerebrovascular Disease Research Center, Bengbu Medical College, Bengbu 233000, China
| | - W Lai
- Class 1, Grade 2017, School of Medical Imaging, Bengbu Medical College, Bengbu 233000, China
| | - F Zhu
- Department of Cardiology, First Affiliated Hospital, Bengbu Medical College, Bengbu 233000, China
| | - X Tan
- Department of Cardiology, First Affiliated Hospital, Bengbu Medical College, Bengbu 233000, China.,Cardiovascular and Cerebrovascular Disease Research Center, Bengbu Medical College, Bengbu 233000, China
| | - W Xian
- Department of Cardiology, First Affiliated Hospital, Bengbu Medical College, Bengbu 233000, China.,Cardiovascular and Cerebrovascular Disease Research Center, Bengbu Medical College, Bengbu 233000, China
| | - P Kang
- Department of Cardiology, First Affiliated Hospital, Bengbu Medical College, Bengbu 233000, China
| | - H Wang
- Department of Cardiology, First Affiliated Hospital, Bengbu Medical College, Bengbu 233000, China
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Zhou X, Sun H, Tan F, Yi R, Zhou C, Deng Y, Mu J, Zhao X. Anti-aging effect of Lactobacillus plantarum HFY09-fermented soymilk on D-galactose-induced oxidative aging in mice through modulation of the Nrf2 signaling pathway. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104386] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Adenosine and Metabotropic Glutamate Receptors Are Present in Blood Serum and Exosomes from SAMP8 Mice: Modulation by Aging and Resveratrol. Cells 2020; 9:cells9071628. [PMID: 32645849 PMCID: PMC7407497 DOI: 10.3390/cells9071628] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/27/2020] [Accepted: 07/02/2020] [Indexed: 12/23/2022] Open
Abstract
Adenosine (ARs) and metabotropic glutamate receptors (mGluRs) are G-protein coupled receptors (GPCRs) that are modulated in the brain of SAMP8 mice, an animal model of Alzheimer's disease (AD). In the present work, it is shown the presence of ARs and mGluRs in blood serum and derived exosomes from SAMP8 mice as well as its possible modulation by aging and resveratrol (RSV) consumption. In blood serum, adenosine A1 and A2A receptors remained unaltered from 5 to 7 months of age. However, an age-related decrease in adenosine level was observed, while 5'-Nucleotidase activity was not modulated. Regarding the glutamatergic system, it was observed a decrease in mGluR5 density and glutamate levels in older mice. In addition, dietary RSV supplementation caused an age-dependent modulation in both adenosinergic and glutamatergic systems. These GPCRs were also found in blood serum-derived exosomes, which might suggest that these receptors could be released into circulation via exosomes. Interestingly, changes elicited by age and RSV supplementation on mGluR5 density, and adenosine and glutamate levels were similar to that detected in whole-brain. Therefore, we might suggest that the quantification of these receptors, and their corresponding endogenous ligands, in blood serum could have predictive value for early diagnosis in combination with other distinctive hallmarks of AD.
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Siu WS, Shum WT, Cheng W, Wong CW, Shiu HT, Ko CH, Leung PC, Lam CWK, Wong CK. Topical application of Chinese herbal medicine DAEP relieves the osteoarthritic knee pain in rats. Chin Med 2019; 14:55. [PMID: 31827595 PMCID: PMC6902578 DOI: 10.1186/s13020-019-0278-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 12/03/2019] [Indexed: 12/26/2022] Open
Abstract
Background The potential adverse effects of conventional oral pharmacotherapy of osteoarthritis (OA) restrict their long-term use. Topical application of a Chinese herbal paste for relieving OA knee pain can be effective and safe. However, evidence-based scientific research is insufficient to support its application worldwide. The aim of this study was to investigate the in vivo efficacy of a topical Chinese herbal paste on relieving OA knee pain and its underlying mechanism. Methods An OA rat model was developed by anterior cruciate ligament transection (ACLT) followed by treadmill running. A herbal paste including Dipsaci Radix, Achyranthis Bidentatae Radix, Eucommiae Cortex and Psoraleae Fructus, named as DAEP, was applied topically on the knee joint of the rats (DAEP). The rats without DAEP treatment served as Control. Rats with surgery but without ACLT, treadmill running and DAEP treatment acted as Sham. The morphologic change of the knee joint was observed radiographically. Nociception from the knee of the rats was assessed using Incapacitent test and CatWalk gait system. The therapeutic mechanism was investigated by analyzing the gene and protein expression of inflammatory markers via qPCR and Western blot, respectively. Results Radiographic images showed less destruction at the posterior tibial plateau of the DAEP group compared with the Control after 2 weeks of treatment. The static weight ratio and the gait parameters of the Control were reduced significantly via Incapacitance test and CatWalk gait analysis, respectively. DAEP treatment increased the Print Area and Maximum Intensity significantly compared with the Control. DAEP significantly suppressed the upregulation of gene expression of interleukin (IL)-6, tumor necrosis factor (TNF)-α, and inducible nitric oxide synthase (iNOS). Conclusions DAEP exhibited its effect via the nuclear factor (NF)-κB pathway by suppressing the phosphorylation of IκB kinase αβ (p-IKKαβ) and cyclooxygenase-2 (COX-2) protein expression. This study provides scientific evidence to support the clinical application of the Chinese herbal paste on reliving OA pain.
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Affiliation(s)
- Wing Sum Siu
- 1Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China.,2State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China
| | - Wai Ting Shum
- 1Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China.,2State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China
| | - Wen Cheng
- 1Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China.,2State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China
| | - Chun Wai Wong
- 1Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China.,2State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China
| | - Hoi Ting Shiu
- 1Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China
| | - Chun Hay Ko
- 1Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China
| | - Ping Chung Leung
- 1Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China.,2State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China
| | - Christopher Wai Kei Lam
- Faculty of Medicine and State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Chun Kwok Wong
- 1Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China.,2State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, NT Hong Kong SAR, China.,Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT Hong Kong SAR, China.,5Li Dak Sum Yip Yio Chin R & D Centre for Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
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Functional Analysis of the Promoter Region of Japanese Flounder ( Paralichthys olivaceus) β-actin Gene: A Useful Tool for Gene Research in Marine Fish. Int J Mol Sci 2018; 19:ijms19051401. [PMID: 29738459 PMCID: PMC5983668 DOI: 10.3390/ijms19051401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/21/2018] [Accepted: 05/02/2018] [Indexed: 12/16/2022] Open
Abstract
A newly isolated Japanese flounder (Paralichthys olivaceus) β-actin promoter and its derivative compact construct Poβ-actinΔ−1080/−801Δ−500/−201 have recently been demonstrated to promote ectopic gene expression in cell lines. Different Poβ-actin promoter deletion mutants were constructed and functionally characterized. Mutational analyses by dual-luciferase detected that three regulatory elements, including one enhancer (−1399/−1081) and two silencers (−1080/−801, −500/−201) in the first intron. The sequence located at −1399/−1081 was determined to significantly affect promoter activity. Additionally, the first exon (−1489/−1400) could also remarkably promote the β-actin promoter activity. In the following transduction application, we removed the two silencers and generated a compact reconstruct promoter/enhancer (Poβ-actinΔ−1080/−801Δ−500/−201), which exhibited relatively stronger promoter activity compared with Poβ-actin. Furthermore, the green fluorescent protein (GFP) transgenic stable flounder cell line was obtained by the reconstructed Poβ-actinΔ−1080/−801Δ−500/−201 promoter. Our study provided the potential application of Japanese flounder β-actin, particularly Poβ-actinΔ−1080/−801Δ−500/−201, in ectopic gene expression in the future.
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15
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Wang M, Zheng KY, Lv SW, Zou HF, Liu HS, Yan GL, Liu AD, Fei XF. Preparation and characterization of universal Fe3O4@SiO2/CdTe nanocomposites for rapid and facile detection and separation of membrane proteins. NEW J CHEM 2018. [DOI: 10.1039/c7nj04484d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The separation and enrichment of cell membrane proteins was achieved by the construction of bi-functional magnetic fluorescent nanoprobes.
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Affiliation(s)
- Min Wang
- Development and Molecular Pharmacology Laboratory of Active Polysaccharides
- School of Life Sciences
- Jilin University
- Changchun 130012
- China
| | - Ke-yan Zheng
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Shao-wu Lv
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- School of Life Sciences
- Jilin University
- Changchun 130012
- China
| | - Hai-feng Zou
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Hong-sen Liu
- Development and Molecular Pharmacology Laboratory of Active Polysaccharides
- School of Life Sciences
- Jilin University
- Changchun 130012
- China
| | - Gang-lin Yan
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- School of Life Sciences
- Jilin University
- Changchun 130012
- China
| | - Ai-dong Liu
- Third Affiliated Hospital of Changchun University of Traditional Chinese Medicine
- Changchun 130033
- China
| | - Xiao-fang Fei
- Development and Molecular Pharmacology Laboratory of Active Polysaccharides
- School of Life Sciences
- Jilin University
- Changchun 130012
- China
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16
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Ganaie IA, Naqvi SH, Jain SK, Wajid S. Reduced expression of SETD2 and SNX9 proteins in chemically induced mammary tumorigenesis in Wistar rats: a prognostic histological and proteomic study. PROTOPLASMA 2017; 254:1451-1466. [PMID: 27766425 DOI: 10.1007/s00709-016-1035-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 10/10/2016] [Indexed: 06/06/2023]
Abstract
Breast cancer is a major global health concern, appealing for precise prognostic approaches. Thus, the need is to have studies focusing on the identification and recognition of preliminary events leading to the disease. The present study reports the tracing of precancerous progression and serum proteomic analysis in a breast cancer model developed as a result of 7,12-dimethylbenz[a]anthracene (DMBA) administration. Mammary gland histological changes of prime importance were examined by histopathology, and immunohistochemical analysis with Ki-67 was performed to monitor enhanced cell proliferation, right from the onset of hyperplasia till neoplasia. Serum proteomics (one-dimensional (1D) and two-dimensional (2D) electrophoresis, followed by MALDI-TOF MS characterization) was performed to decipher the differentially expressed serum proteins in animals undergoing tumorigenesis vis-à-vis controls. The significance of our study lies in reporting the significantly reduced expression of two proteins: histone-lysine N-methyltransferase (SETD2) and sorting nexin-9 (SNX9) at very early stage (13 weeks) of tumorigenesis, while the full-fledged tumors developed after 6 months. The reduced expression of SETD2 and SNX9 was validated by western blotting and relative expression analysis using quantitative real-time PCR. These proteins may hence prove as potentially useful tools in search for prognostic markers for the early detection of mammary cancer.
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Affiliation(s)
- Ishfaq Ahmad Ganaie
- Department of Biotechnology, Faculty of Science, Hamdard University (Jamia Hamdard), New Delhi, 110062, India
| | | | - Swatantra Kumar Jain
- Department of Biochemistry, Hamdard Institute of Medical Sciences and Research, Hamdard University (Jamia Hamdard), New Delhi, 110062, India
| | - Saima Wajid
- Department of Biotechnology, Faculty of Science, Hamdard University (Jamia Hamdard), New Delhi, 110062, India.
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17
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Comprehensive and quantitative proteomic analyses of zebrafish plasma reveals conserved protein profiles between genders and between zebrafish and human. Sci Rep 2016; 6:24329. [PMID: 27071722 PMCID: PMC4829857 DOI: 10.1038/srep24329] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/24/2016] [Indexed: 02/08/2023] Open
Abstract
Omic approaches have been increasingly used in the zebrafish model for holistic understanding of molecular events and mechanisms of tissue functions. However, plasma is rarely used for omic profiling because of the technical challenges in collecting sufficient blood. In this study, we employed two mass spectrometric (MS) approaches for a comprehensive characterization of zebrafish plasma proteome, i.e. conventional shotgun liquid chromatography-tandem mass spectrometry (LC-MS/MS) for an overview study and quantitative SWATH (Sequential Window Acquisition of all THeoretical fragment-ion spectra) for comparison between genders. 959 proteins were identified in the shotgun profiling with estimated concentrations spanning almost five orders of magnitudes. Other than the presence of a few highly abundant female egg yolk precursor proteins (vitellogenins), the proteomic profiles of male and female plasmas were very similar in both number and abundance and there were basically no other highly gender-biased proteins. The types of plasma proteins based on IPA (Ingenuity Pathway Analysis) classification and tissue sources of production were also very similar. Furthermore, the zebrafish plasma proteome shares significant similarities with human plasma proteome, in particular in top abundant proteins including apolipoproteins and complements. Thus, the current study provided a valuable dataset for future evaluation of plasma proteins in zebrafish.
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18
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Zhu C, Yang X, Lv R, Li Z, Ding X, Tyler BM, Zhang X. Phytophthora capsici homologue of the cell cycle regulator SDA1 is required for sporangial morphology, mycelial growth and plant infection. MOLECULAR PLANT PATHOLOGY 2016; 17:369-87. [PMID: 26095317 PMCID: PMC6638425 DOI: 10.1111/mpp.12285] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
SDA1 encodes a highly conserved protein that is widely distributed in eukaryotic organisms. SDA1 is essential for cell cycle progression and organization of the actin cytoskeleton in yeasts and humans. In this study, we identified a Phytophthora capsici orthologue of yeast SDA1, named PcSDA1. In P. capsici, PcSDA1 is strongly expressed in three asexual developmental states (mycelium, sporangia and germinating cysts), as well as late in infection. Silencing or overexpression of PcSDA1 in P. capsici transformants affected the growth of hyphae and sporangiophores, sporangial development, cyst germination and zoospore release. Phalloidin staining confirmed that PcSDA1 is required for organization of the actin cytoskeleton. Moreover, 4',6-diamidino-2-phenylindole (DAPI) staining and PcSDA1-green fluorescent protein (GFP) fusions revealed that PcSDA1 is involved in the regulation of nuclear distribution in hyphae and sporangia. Both silenced and overexpression transformants showed severely diminished virulence. Thus, our results suggest that PcSDA1 plays a similar role in the regulation of the actin cytoskeleton and nuclear division in this filamentous organism as in non-filamentous yeasts and human cells.
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Affiliation(s)
- Chunyuan Zhu
- Department of Plant Pathology, Shandong Agricultural University, 61, Daizong Street, Tai'an, Shandong, 271018, China
| | - Xiaoyan Yang
- Department of Plant Pathology, Shandong Agricultural University, 61, Daizong Street, Tai'an, Shandong, 271018, China
| | - Rongfei Lv
- Department of Plant Pathology, Shandong Agricultural University, 61, Daizong Street, Tai'an, Shandong, 271018, China
| | - Zhuang Li
- Department of Plant Pathology, Shandong Agricultural University, 61, Daizong Street, Tai'an, Shandong, 271018, China
| | - Xiaomeng Ding
- Department of Plant Pathology, Shandong Agricultural University, 61, Daizong Street, Tai'an, Shandong, 271018, China
| | - Brett M Tyler
- Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR, 97331, USA
| | - Xiuguo Zhang
- Department of Plant Pathology, Shandong Agricultural University, 61, Daizong Street, Tai'an, Shandong, 271018, China
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19
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Huang W, Cen S, Kang XL, Wang WF, Wang Y, Chen X. TGF-β1-induced Fascin1 promotes cell invasion and metastasis of human 786-0 renal carcinoma cells. Acta Histochem 2016; 118:144-51. [PMID: 26749573 DOI: 10.1016/j.acthis.2015.12.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 12/16/2015] [Accepted: 12/16/2015] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To investigate the effect of transforming growth factor-β1 (TGF-β1) on the expression of Fascin1 protein and its impact on cell invasion and metastasis in human renal carcinoma. METHODS Renal tissue slices of 52 cases when undergoing radical nephrectomy were collected to be the observation group, and the normal renal tissues of 23 cases when undergoing nephrectomy due to trauma were collected to be the control group. The expressions of TGF-β1 and Fascin1 were measured by immunohistochemical staining. Human renal carcinoma 786-0 cell line was selected as the study subject. The cells were divided into six groups including NT (no transfection), si-NC (transfection with pGenesil-1-con) si-Fascin1 (transfection with pGen-1-FSCN1) groups, and three corresponding groups: NT, si-NC and si-Fascin1 groups treated with TGF-β1. RT-qPCR, Western-Blot, Transwell, and flow cytometry method were used in this study. RESULTS The expressions of TGF-β1 and Fascin1 in the observation group were significantly higher than those in the control group. The expression of TGF-β1 was positively correlated with that of Fascin1. After 24 and 48h of treatment with TGF-β1 (10ng/mL), the invasive and metastatic abilities of the 786-0 cells in the NT and si-NC groups were higher than those before the treatment (P<0.05). Comparing the three groups before TGF-β1 treatment, the invasive and metastatic ability of 786-0 cells in the si-Fascin1 were significantly lower than those in the NT group and si-NC group (P<0.05). CONCLUSION TGF-β1 could induce the expressions of 786-0 Fascin1 mRNA and protein and thus improve the invasive and metastatic ability of human 786-0 renal carcinoma cell.
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Affiliation(s)
- Wei Huang
- Department of Urology, Xiangya Hospital Central South University, Hunan, PR China
| | - Son Cen
- Department of Urology, Hainan Provincial People's Hospital, Hainan, PR China
| | - Xin-Li Kang
- Department of Urology, Hainan Provincial People's Hospital, Hainan, PR China
| | - Wei-Fu Wang
- Department of Urology, Hainan Provincial People's Hospital, Hainan, PR China
| | - Yang Wang
- Department of Urology, Hainan Provincial People's Hospital, Hainan, PR China
| | - Xiang Chen
- Department of Urology, Xiangya Hospital Central South University, Hunan, PR China.
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20
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Wang Q, Du J, Yu P, Bai B, Zhao Z, Wang S, Zhu J, Feng Q, Gao Y, Zhao Q, Liu C. Hepatic steatosis depresses alpha-1-antitrypsin levels in human and rat acute pancreatitis. Sci Rep 2015; 5:17833. [PMID: 26634430 PMCID: PMC4669469 DOI: 10.1038/srep17833] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 11/06/2015] [Indexed: 12/11/2022] Open
Abstract
Hepatic steatosis (HS) can exacerbate acute pancreatitis (AP). This study aimed to investigate the relation between α1-antitrypsin (AAT) and acute pancreatitis when patients have HS. Using proteomic profiling, we identified 18 differently expressed proteins pots in the serum of rats with or without HS after surgical establishment of AP. AAT was found to be one of the significantly down-regulated proteins. AAT levels were significantly lower in hepatic steatosis acute pancreatitis (HSAP) than in non-HSAP (NHSAP) (P < 0.001). To explore the clinical significance of these observations, we measured the levels of AAT in the serum of 240 patients with HSAP, NHSAP, fatty liver disease (FLD), or no disease. Compared with healthy controls, serum AAT levels in patients with NHSAP were significantly higher (P < 0.01), while in patients with HSAP serum AAT levels were significantly lower (P < 0.01). Further studies showed that acute physiology and chronic health evaluation (APACHE-II) scores were negatively correlated with serum AAT levels (r = −0.85, P < 0.01). In conclusion, low serum levels of AAT in patients with HSAP are correlated with disease severity and AAT may represent a potential target for therapies aiming to improve pancreatitis.
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Affiliation(s)
- Qian Wang
- Department of Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Jianjun Du
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Pengfei Yu
- Department of Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Bin Bai
- Department of Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Zhanwei Zhao
- Department of Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Shiqi Wang
- Department of Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Junjie Zhu
- Department of Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Quanxin Feng
- Department of Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Yun Gao
- Department of Surgery, China PLA 323323 Hospital, Beijing, 100853, China
| | - Qingchuan Zhao
- Department of Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Chaoxu Liu
- Department of General Surgery, Huashan Hospital North, Fudan University, Shanghai, 201907, China.,Department of Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xian, 710032, China
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Pang L, Zhao X, Liu W, Deng J, Tan X, Qiu L. Anticancer Effect of Ursodeoxycholic Acid in Human Oral Squamous Carcinoma HSC-3 Cells through the Caspases. Nutrients 2015; 7:3200-18. [PMID: 25951128 PMCID: PMC4446747 DOI: 10.3390/nu7053200] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 03/07/2015] [Accepted: 04/22/2015] [Indexed: 12/16/2022] Open
Abstract
Bear bile was used as a traditional medicine or tonic in East Asia, and ursodeoxycholic acid (UDCA) is the most important compound in bear bile. Further, synthetic UDCA is also used in modern medicine and nutrition; therefore, its further functional effects warrant research, in vitro methods could be used for the fundamental research of its anticancer effects. In this study, the apoptotic effects of UDCA in human oral squamous carcinoma HSC-3 cells through the activation of caspases were observed by the experimental methods of MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide) assay, DAPI (4’,6-diamidino-2-phenylindole) staining, flow cytometry analysis, RT-PCR (reverse transcription-polymerase chain reaction) assay and Western blot assay after HSC-3 cells were treated by different concentrations of UDCA. With 0 to 400 μg/mL UDCA treatment, UDCA had strong growth inhibitory effects in HSC-3 cells, but had almost no effect in HOK normal oral cells. At concentrations of 100, 200 and 400 μg/mL, UDCA could induce apoptosis compared to untreated control HSC-3 cells. Treatment of 400 μg/mL UDCA could induce more apoptotic cancer cells than 100 and 200 μg/mL treatment; the sub-G1 DNA content of 400 μg/mL UDCA treated cancer cells was 41.3% versus 10.6% (100 μg/mL) and 22.4% (200 μg/mL). After different concentrations of UDCA treatment, the mRNA and protein expressions of caspase-3, caspase-8, caspase-9, Bax, Fas/FasL (Fas ligand), TRAIL (TNF-related apoptosis-inducing ligand), DR4 (death receptor 4) and DR5 (death receptor 5) were increased in HSC-3 cells, and mRNA and protein expressions of Bcl-2 (B-cell lymphoma 2), Bcl-xL (B-cell lymphoma-extra large), XIAP (X-linked inhibitor of apoptosis protein), cIAP-1 (cellular inhibitor of apoptosis 1), cIAP-2 (cellular inhibitor of apoptosis 2) and survival were decreased. Meanwhile, at the highest concentration of 400 μg/mL, caspase-3, caspase-8, caspase-9, Bax, Fas/FasL, TRAIL, DR4, DR5, and IκB-α expression levels were the highest, and Bcl-2, Bcl-xL, XIAP, cIAP-1, cIAP-2, survival, and NF-κB expression levels were the lowest. These results proved that UDCA could induce apoptosis of HSC-3 cancer cells through caspase activation, and the higher concentration of UDCA had stronger effects in vitro. UDCA might be a good nutrient for oral cancer prevention.
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Affiliation(s)
- Liang Pang
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China.
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing 401147, China.
| | - Xin Zhao
- Department of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China.
- Institute of Functional Ecological Food, Chongqing University of Education, Chongqing 400067, China.
| | - Weiwei Liu
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, China.
| | - Jiang Deng
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China.
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing 401147, China.
| | - Xiaotong Tan
- Department of Food Science and Nutrition, Pusan National University, Busan 609-735, Korea.
| | - Lihua Qiu
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China.
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
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Muradashvili N, Benton RL, Saatman KE, Tyagi SC, Lominadze D. Ablation of matrix metalloproteinase-9 gene decreases cerebrovascular permeability and fibrinogen deposition post traumatic brain injury in mice. Metab Brain Dis 2015; 30:411-26. [PMID: 24771110 PMCID: PMC4213324 DOI: 10.1007/s11011-014-9550-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 04/15/2014] [Indexed: 12/14/2022]
Abstract
Traumatic brain injury (TBI) is accompanied with enhanced matrix metalloproteinase-9 (MMP-9) activity and elevated levels of plasma fibrinogen (Fg), which is a known inflammatory agent. Activation of MMP-9 and increase in blood content of Fg (i.e. hyperfibrinogenemia, HFg) both contribute to cerebrovascular disorders leading to blood brain barrier disruption. It is well-known that activation of MMP-9 contributes to vascular permeability. It has been shown that at an elevated level (i.e. HFg) Fg disrupts blood brain barrier. However, mechanisms of their actions during TBI are not known. Mild TBI was induced in wild type (WT, C57BL/6 J) and MMP-9 gene knockout (Mmp9(-/-)) homozygous, mice. Pial venular permeability to fluorescein isothiocyanate-conjugated bovine serum albumin in pericontusional area was observed 14 days after injury. Mice memory was tested with a novel object recognition test. Increased expression of Fg endothelial receptor intercellular adhesion protein-1 and formation of caveolae were associated with enhanced activity of MMP-9 causing an increase in pial venular permeability. As a result, an enhanced deposition of Fg and cellular prion protein (PrP(C)) were found in pericontusional area. These changes were attenuated in Mmp9(-/-) mice and were associated with lesser loss of short-term memory in these mice than in WT mice. Our data suggest that mild TBI-induced increased cerebrovascular permeability enhances deposition of Fg-PrP(C) and loss of memory, which is ameliorated in the absence of MMP-9 activity. Thus, targeting MMP-9 activity and blood level of Fg can be a possible therapeutic remedy to diminish vasculo-neuronal damage after TBI.
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Affiliation(s)
- Nino Muradashvili
- Department of Physiology and Biophysics, University of Louisville, School of Medicine, Louisville, KY
| | - Richard L. Benton
- Department of Anatomical Sciences and Neurobiology and Kentucky Spinal Cord Injury Research Center (KSCIRC), University of Louisville, School of Medicine, Louisville, KY
| | - Kathryn E. Saatman
- Department of Physiology and Neurosurgery and Spinal Cord & Brain Injury Research Center (SCoBIRC), University of Kentucky, Lexington, KY, USA
| | - Suresh C. Tyagi
- Department of Physiology and Biophysics, University of Louisville, School of Medicine, Louisville, KY
| | - David Lominadze
- Department of Physiology and Biophysics, University of Louisville, School of Medicine, Louisville, KY
- Corresponding Author: David Lominadze, Ph. D., University of Louisville, Dept. of Physiology & Biophysics, School of Medicine, Bldg. A, Room 1115, 500 South Preston Street, Louisville, KY 40202, Phone (502) 852-4902, Fax (502) 852-6239,
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23
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Zeng L, Guo J, Xu HB, Huang R, Shao W, Yang L, Wang M, Chen J, Xie P. Direct Blue 71 staining as a destaining-free alternative loading control method for Western blotting. Electrophoresis 2014; 34:2234-9. [PMID: 23712695 DOI: 10.1002/elps.201300140] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 04/10/2013] [Accepted: 04/10/2013] [Indexed: 11/07/2022]
Abstract
In Western blotting, a suitable loading control is indispensable for correcting errors in the total amount of loaded protein. Immunodetection of housekeeping proteins and total protein staining have traditionally been used as loading control methods. Direct Blue 71 (DB71) staining-a novel, sensitive, dye-binding staining method compatible with immunodetection-may offer advantages over these traditional loading control methods. Three common neuroscientific samples (human plasma, human oligodendrocytes, and rat brain) were employed to assess DB71 staining as a loading control method for Western blotting. DB71, CBB, one traditional housekeeping protein, and one protein of interest were comparatively assessed for reliability and repeatability and linear dynamic range over 2.5-40 μg of protein loaded. DB71's effect on the reliability and repeatability and linear dynamic range of immunoreaction were also assessed. Across all three sample types, DB71 was either equivalent or superior to CBB and housekeeping protein-based methods in terms of reliability and repeatability and linear dynamic range. Across all three sample types, DB71 staining did not impair the reliability and repeatability or linear dynamic range of immunoreaction. Our results demonstrate that the DB71 staining can be used as a destaining-free alternative loading control method for Western blotting.
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Affiliation(s)
- Li Zeng
- Department of Neurology, First Affiliated Hospital, Chongqing Medical University, Chongqing, PR China
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Degasperi A, Birtwistle MR, Volinsky N, Rauch J, Kolch W, Kholodenko BN. Evaluating strategies to normalise biological replicates of Western blot data. PLoS One 2014; 9:e87293. [PMID: 24475266 PMCID: PMC3903630 DOI: 10.1371/journal.pone.0087293] [Citation(s) in RCA: 147] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 12/27/2013] [Indexed: 12/01/2022] Open
Abstract
Western blot data are widely used in quantitative applications such as statistical testing and mathematical modelling. To ensure accurate quantitation and comparability between experiments, Western blot replicates must be normalised, but it is unclear how the available methods affect statistical properties of the data. Here we evaluate three commonly used normalisation strategies: (i) by fixed normalisation point or control; (ii) by sum of all data points in a replicate; and (iii) by optimal alignment of the replicates. We consider how these different strategies affect the coefficient of variation (CV) and the results of hypothesis testing with the normalised data. Normalisation by fixed point tends to increase the mean CV of normalised data in a manner that naturally depends on the choice of the normalisation point. Thus, in the context of hypothesis testing, normalisation by fixed point reduces false positives and increases false negatives. Analysis of published experimental data shows that choosing normalisation points with low quantified intensities results in a high normalised data CV and should thus be avoided. Normalisation by sum or by optimal alignment redistributes the raw data uncertainty in a mean-dependent manner, reducing the CV of high intensity points and increasing the CV of low intensity points. This causes the effect of normalisations by sum or optimal alignment on hypothesis testing to depend on the mean of the data tested; for high intensity points, false positives are increased and false negatives are decreased, while for low intensity points, false positives are decreased and false negatives are increased. These results will aid users of Western blotting to choose a suitable normalisation strategy and also understand the implications of this normalisation for subsequent hypothesis testing.
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Affiliation(s)
- Andrea Degasperi
- Systems Biology Ireland, University College Dublin, Dublin, Republic of Ireland
| | - Marc R. Birtwistle
- Department of Pharmacology and Systems Therapeutics, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Natalia Volinsky
- Systems Biology Ireland, University College Dublin, Dublin, Republic of Ireland
| | - Jens Rauch
- Systems Biology Ireland, University College Dublin, Dublin, Republic of Ireland
| | - Walter Kolch
- Systems Biology Ireland, University College Dublin, Dublin, Republic of Ireland
- Conway Institute of Biomolecular & Biomedical Research, University College Dublin, Dublin, Republic of Ireland
- School of Medicine and Medical Science, University College Dublin, Dublin, Republic of Ireland
| | - Boris N. Kholodenko
- Systems Biology Ireland, University College Dublin, Dublin, Republic of Ireland
- Conway Institute of Biomolecular & Biomedical Research, University College Dublin, Dublin, Republic of Ireland
- School of Medicine and Medical Science, University College Dublin, Dublin, Republic of Ireland
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Wang X, Zhu X, Tooley P, Zhang X. Cloning and functional analysis of three genes encoding polygalacturonase-inhibiting proteins from Capsicum annuum and transgenic CaPGIP1 in tobacco in relation to increased resistance to two fungal pathogens. PLANT MOLECULAR BIOLOGY 2013; 81:379-400. [PMID: 23334855 DOI: 10.1007/s11103-013-0007-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 01/01/2013] [Indexed: 05/10/2023]
Abstract
Polygalacturonase-inhibiting proteins (PGIPs) are plant cell wall glycoproteins that can inhibit fungal endopolygalacturonases (PGs). The PGIPs directly reduce the aggressive potential of PGs. Here, we isolated and functionally characterized three members of the pepper (Capsicum annuum) PGIP gene family. Each was up-regulated at a different time following stimulation of the pepper leaves by Phytophthora capcisi and abiotic stresses including salicylic acid, methyl jasmonate, abscisic acid, wounding and cold treatment. Purified recombinant proteins individually inhibited activity of PGs produced by Alternaria alternata and Colletotrichum nicotianae, respectively, and virus-induced gene silencing in pepper conferred enhanced susceptibility to P. capsici. Because three PGIP genes acted similarily in conferring resistance to infection by P. capsici, and because individually purified proteins showed consistent inhibition against PG activity of both pathogens, CaPGIP1 was selected for manipulating transgenic tobacco. The crude proteins from transgenic tobacco exhibited distinct enhanced resistance to PG activity of both fungi. Moreover, the transgenic tobacco showed effective resistance to infection and a significant reduction in the number of infection sites, number of lesions and average size of lesions in the leaves. All results suggest that CaPGIPs may be involved in plant defense response and play an important role in a plant's resistance to disease.
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Affiliation(s)
- Xiuju Wang
- Department of Plant Pathology, Shandong Agricultural University, No. 61, Daizong street, Tai'an, 271018, Shandong, China
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Gürtler A, Kunz N, Gomolka M, Hornhardt S, Friedl AA, McDonald K, Kohn JE, Posch A. Stain-Free technology as a normalization tool in Western blot analysis. Anal Biochem 2012; 433:105-11. [PMID: 23085117 DOI: 10.1016/j.ab.2012.10.010] [Citation(s) in RCA: 300] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Revised: 10/04/2012] [Accepted: 10/08/2012] [Indexed: 10/27/2022]
Abstract
Western blots are used to specifically measure the relative quantities of proteins of interest in complex biological samples. Quantitative measurements can be subject to error due to process inconsistencies such as uneven protein transfer to the membrane. These non-sample-related variations need to be compensated for by an approach known as normalization. Two approaches to data normalization are commonly employed: housekeeping protein (HKP) normalization and total protein normalization (TPN). In this study, we evaluated the performance of Stain-Free technology as a novel TPN tool for Western blotting experiments in comparison with glyceraldehyde-3-phosphate dehydrogenase (GAPDH) as a representative of the HKP normalization strategy. The target protein (TP) used for this study was MCM7, a DNA licensing replication factor, which was shown previously to be down-regulated by 20% in irradiated lymphoblastoid cell lines (LCLs). We studied the regulation of MCM7 with a multiplex Western blotting approach based on fluorescently labeled secondary antibodies and found that Stain-Free technology appears to be more reliable, more robust, and more sensitive to small effects of protein regulation when compared with HKP normalization with GAPDH. Stain-Free technology offers the additional advantages of providing checkpoints throughout the Western blotting process by allowing rapid visualization of gel separation and protein transfer.
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Affiliation(s)
- Anne Gürtler
- Department of Radiation Oncology, LMU, 81377 Munich, Germany
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