1
|
Long L, Luo H, Wang Y, Gu J, Xiong J, Tang X, Lv H, Zhou F, Cao K, Lin S. Kurarinone, a flavonoid from Radix Sophorae Flavescentis, inhibits RANKL-induced osteoclastogenesis in mouse bone marrow-derived monocyte/macrophages. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03100-z. [PMID: 38643449 DOI: 10.1007/s00210-024-03100-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/11/2024] [Indexed: 04/22/2024]
Abstract
Inflammation-induced osteoclast proliferation is a crucial contributor to impaired bone metabolism. Kurarinone (KR), a flavonoid extracted from the Radix Sophorae Flavescentis, exhibits notable anti-inflammatory properties. Nevertheless, the precise influence of KR on osteoclast formation remains unclear. This study's objective was to assess the impact of KR on osteoclast activity in vitro and unravel its underlying mechanism. Initially, a target network for KR-osteoclastogenesis-osteoporosis was constructed using network pharmacology. Subsequently, the intersecting targets were identified through the Venny platform and a PPI network was created using Cytoscape 3.9.1. Key targets within the network were identified employing topological algorithms. GO enrichment and KEGG pathway analysis were then performed on these targets to explore their specific functions and pathways. Additionally, molecular docking of potential core targets of KR was conducted, and the results were validated through cell experiments. A total of 83 target genes overlapped between KR and osteoclastogenesis-osteoporosis targets. Enrichment analysis revealed their role in inflammatory response, protein tyrosine kinase activity, osteoclast differentiation, and MAPK and NF-κB signaling pathways. PPI analysis and molecular docking demonstrate that key targets MAPK14 and MAPK8 exhibit more stable binding with KR compared to other proteins. In vitro experiments demonstrate that KR effectively inhibits osteoclast differentiation and bone resorption without cellular toxicity. It suppresses key osteoclast genes (NFATc1, c-Fos, TRAP, MMP9, Ctsk, Atp6v2), hinders IκB-α degradation, and inhibits ERK and JNK phosphorylation, while not affecting p38 phosphorylation. The results indicate that KR may inhibit osteoclast maturation and bone resorption by blocking NF-κB and MAPK signaling pathways, suggesting its potential as a natural therapeutic agent for osteoporosis.
Collapse
Affiliation(s)
- Ling Long
- Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, 332000, Jiangxi, China
| | - Hao Luo
- Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, 332000, Jiangxi, China
| | - Yi Wang
- Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, 332000, Jiangxi, China
| | - Jiaxiang Gu
- Orthopedic Hospital, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330209, Jiangxi, China
| | - Jiachao Xiong
- Orthopedic Hospital, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330209, Jiangxi, China
| | - Xiaokai Tang
- Orthopedic Hospital, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330209, Jiangxi, China
| | - Hao Lv
- Orthopedic Hospital, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330209, Jiangxi, China
| | - Faxin Zhou
- Orthopedic Hospital, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330209, Jiangxi, China
| | - Kai Cao
- Orthopedic Hospital, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330209, Jiangxi, China.
| | - Sijian Lin
- Rehabilitation Medicine Department, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, China.
| |
Collapse
|
2
|
Sriramareddy SN, Jamakhani M, Vilanova L, Brossel H, Staumont B, Hamaidia M. Selective inhibition of DNA ligase IV provides additional efficacy to the treatment of anaplastic thyroid cancer. Front Oncol 2024; 14:1323313. [PMID: 38380364 PMCID: PMC10876873 DOI: 10.3389/fonc.2024.1323313] [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: 10/17/2023] [Accepted: 01/19/2024] [Indexed: 02/22/2024] Open
Abstract
Background Although the incidence of anaplastic thyroid carcinoma (ATC) is low (2.5% of thyroid cancer cases), this cancer has a very poor prognosis (survival rates < 5 months) and accounts for 14-39% of deaths. Conventional therapies based on surgery in combination with radiotherapy or chemotherapy showed limited effectiveness primarily due to the robust and protective DNA damage response in thyroid cancer cells. Methods We used single-cell transcriptomic data from patients with different subtypes of thyroid cancer to study expression of genes involved in homologous recombination (HR) and non-homologous end joining (NHEJ) pathways. Then, we investigated the mechanisms of DNA damage and repair in anaplastic (C643 and Hth74) and papillary (TPC-1) thyroid cancer cell lines. The effect of caffeine (inhibitor of ATM and ATR) and UCN-01 (CHK1 inhibitor) was evaluated in cell cycle progression of thyroid cancer cells after γ-radiation or doxorubicin treatment. The DNA damage response was monitored after staining of phosphorylated γ-H2AX and 53BP1. Reporter plasmids were used to determine the efficacy of double-strand DNA breaks (DSBs) repair by HR and NHEJ in thyroid cancer cells. We evaluated the combination of selective inhibition of the DNA ligase IV by SCR7 and doxorubicin on cellular apoptosis and tumor growth in xenograft murine models of anaplastic thyroid cancer. Results Single-cell RNA-Seq showed that NHEJ- and HR-related genes are expressed in ATC and PTC patients. We showed that ATC cells undergo mitosis in the presence of unrepaired DNA damage caused by γ-radiation and doxorubicin treatment. To proliferate and survive, these cells efficiently repair DNA lesions using homologous recombination (HR) and non-homologous end joining (NHEJ). The combination of SCR7 with doxorubicin, significantly increased apoptosis and impaired ATC tumor growth in a xenograft mouse model compared to doxorubicin monotherapy. Conclusion This study shows the therapeutic value of the combination of a DNA ligase IV inhibitor and DNA-damaging agents (doxorubicin and/or γ-radiation) for the treatment of anaplastic thyroid cancer.
Collapse
Affiliation(s)
- Sathya Neelature Sriramareddy
- Molecular and Cellular Epigenetics, Interdisciplinary Cluster for Applied Genoproteomics (GIGA), University of Liège, Liège, Belgium
- Molecular Biology (TERRA), University of Liege, Gembloux, Belgium
| | - Majeed Jamakhani
- Molecular and Cellular Epigenetics, Interdisciplinary Cluster for Applied Genoproteomics (GIGA), University of Liège, Liège, Belgium
- Molecular Biology (TERRA), University of Liege, Gembloux, Belgium
| | - Léa Vilanova
- Molecular and Cellular Epigenetics, Interdisciplinary Cluster for Applied Genoproteomics (GIGA), University of Liège, Liège, Belgium
- Molecular Biology (TERRA), University of Liege, Gembloux, Belgium
| | - Hélène Brossel
- Molecular and Cellular Epigenetics, Interdisciplinary Cluster for Applied Genoproteomics (GIGA), University of Liège, Liège, Belgium
- Molecular Biology (TERRA), University of Liege, Gembloux, Belgium
| | - Bernard Staumont
- Molecular and Cellular Epigenetics, Interdisciplinary Cluster for Applied Genoproteomics (GIGA), University of Liège, Liège, Belgium
- Molecular Biology (TERRA), University of Liege, Gembloux, Belgium
| | - Malik Hamaidia
- Molecular and Cellular Epigenetics, Interdisciplinary Cluster for Applied Genoproteomics (GIGA), University of Liège, Liège, Belgium
- Molecular Biology (TERRA), University of Liege, Gembloux, Belgium
| |
Collapse
|
3
|
Huang X, Han Y, Yang J, Bu L, Cheng X, Zha X, Chen H, Huang Y, Qu S. Sex-dependent impact of obesity on aggressiveness of papillary thyroid cancer. Hormones (Athens) 2023:10.1007/s42000-023-00517-8. [PMID: 38112916 DOI: 10.1007/s42000-023-00517-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 12/08/2023] [Indexed: 12/21/2023]
Abstract
PURPOSE To investigate the impact of body mass index (BMI) on the aggressiveness of papillary thyroid cancer (PTC). METHODS A total of 1720 PTC patients with total thyroidectomy or lobectomy, from January 2017 to April 2020, were retrospectively evaluated. Based on BMI, they were divided into two groups, as follows: control (CON, < 24 kg/m2) and overweight and obesity (OB, ≥ 24 kg/m2), each sex being analyzed separately. RESULTS In the whole cohort, the OB group had significantly higher rates of extrathyroidal extension (21.5 vs. 16.8%, p = 0.013), multifocality (43.2 vs. 37.7%, p = 0.018), and BRAF-V600E mutation (82.9 vs. 79.3%, p = 0.015) than the CON group. In males, the OB group had increased rates of tumor size over 1cm (54.4 vs. 42.7%, p = 0.008), extrathyroidal extension (24.9 vs. 12.4%, p = 0.001), and multifocality (42.7 vs. 33.5%, p = 0.038). The OB group had significantly higher adjusted odds ratios (ORs) of 1.63 (1.14-2.33, p = 0.008), 2.12 (1.26-3.57, p = 0.005), and 1.56 (1.07-2.29, p = 0.022) for tumor size over 1cm, extrathyroidal extension, and multifocality compared with CON. Additionally, overweight and obesity were analyzed alone and the rates of extrathyroidal extension (30/100, 30.0%, p = 0.001) and tumor size over 1cm (65/100, 65.0%, p = 0.001) were significantly higher in the obesity group than in the overweight and CON groups. The obesity group had robust higher adjusted ORs of 2.51(1.50-4.20, p < 0.001), 2.93 (1.50-5.73, p = 0.002) and 1.89 (1.11-3.22, p = 0.020) for tumor size over 1cm, extrathyroidal extension, and multifocality compared with CON. CONCLUSIONS Overweight and obesity were predominant independent risk factors for PTC aggressiveness in males. These data indicated that the therapeutic treatment should be based on risk stratification by BMI in males.
Collapse
Affiliation(s)
- Xiu Huang
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China
- Shanghai Center of Thyroid Diseases, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China
| | - Yali Han
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China
- Shanghai Center of Thyroid Diseases, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China
| | - Jie Yang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
| | - Le Bu
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China
| | - Xiaoyun Cheng
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China
| | - Xiaojuan Zha
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China
- Shanghai Center of Thyroid Diseases, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China
| | - Haibing Chen
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China
| | - Yueye Huang
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China.
- Shanghai Center of Thyroid Diseases, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China.
| | - Shen Qu
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China.
- Shanghai Center of Thyroid Diseases, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China.
| |
Collapse
|
4
|
Li J, Cao H, Zhou X, Guo J, Zheng C. Advances in the study of traditional Chinese medicine affecting bone metabolism through modulation of oxidative stress. Front Pharmacol 2023; 14:1235854. [PMID: 38027015 PMCID: PMC10646494 DOI: 10.3389/fphar.2023.1235854] [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: 06/06/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
Bone metabolic homeostasis is dependent on coupled bone formation dominated by osteoblasts and bone resorption dominated by osteoclasts, which is a process of dynamic balance between bone formation and bone resorption. Notably, the formation of bone relies on the development of bone vasculature. Previous studies have shown that oxidative stress caused by disturbances in the antioxidant system of the whole organism is an important factor affecting bone metabolism. The increase in intracellular reactive oxygen species can lead to disturbances in bone metabolism, which can initiate multiple bone diseases, such as osteoporosis and osteoarthritis. Traditional Chinese medicine is considered to be an effective antioxidant. Cumulative evidence shows that the traditional Chinese medicine can alleviate oxidative stress-mediated bone metabolic disorders by modulating multiple signaling pathways, such as Nrf2/HO-1 signaling, PI3K/Akt signaling, Wnt/β-catenin signaling, NF-κB signaling, and MAPK signaling. In this paper, the potential mechanisms of traditional Chinese medicine to regulate bone me-tabolism through oxidative stress is summarized to provide direction and theoretical basis for future research related to the treatment of bone diseases with traditional Chinese medicine.
Collapse
Affiliation(s)
- Jiaying Li
- School of Sports and Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hong Cao
- School of Sports and Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Xuchang Zhou
- School of Sports and Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Jianmin Guo
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Chengqiang Zheng
- School of Sports and Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| |
Collapse
|
5
|
Alomar HA, Nadeem A, Ansari MA, Attia SM, Bakheet SA, Al-Mazroua HA, Alhazzani K, Assiri MA, Alqinyah M, Almudimeegh S, Ahmad SF. Mitogen-activated protein kinase inhibitor PD98059 improves neuroimmune dysfunction in experimental autoimmune encephalomyelitis in SJL/J mice through the inhibition of nuclear factor-kappa B signaling in B cells. Brain Res Bull 2023; 194:45-53. [PMID: 36646144 DOI: 10.1016/j.brainresbull.2023.01.003] [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: 06/19/2022] [Revised: 12/20/2022] [Accepted: 01/12/2023] [Indexed: 01/15/2023]
Abstract
Multiple sclerosis (MS) is a severe autoimmune disease leading to demyelination, followed by consequent axonal degeneration, causing sensory, motor, cognitive, and visual symptoms. Experimental autoimmune encephalomyelitis (EAE) is the most well-studied animal model of MS. Most current MS treatments are not completely effective, and severe side effects remain a great challenge. In this study, we report the therapeutic efficacy of PD98059, a potent mitogen-activated protein kinase inhibitor, on proteolipid protein (PLP)139-151-induced EAE in SJL/J mice. Following the induction of EAE, mice were intraperitoneally treated with PD98059 (5 mg/kg for 14 days) daily from day 14 to day 28. This study investigated the effects of PD98059 on C-C motif chemokine receptor 6 (CCR6), CD14, NF-κB p65, IκBα, GM-CSF, iNOS, IL-6, TNF-α in CD45R+ B lymphocytes using flow cytometry. Furthermore, we analyzed the effect of PD98059 on CCR6, CD14, NF-κB p65, GM-CSF, iNOS, IL-6, and TNF-α mRNA and protein expression levels using qRT-PCR analysis in brain tissues. Mechanistic investigations revealed that PD98059-treated in mice with EAE had reduced CD45R+CCR6+, CD45R+CD14+, CD45R+NF-κB p65+, CD45R+GM-CSF+, CD45R+iNOS+, CD45R+IL-6+, and CD45R+TNF-α+ cells and increased CD45R+IκBα+ cells compared with vehicle-treated control mice in the spleen. Moreover, downregulation of CCR6, CD14, NF-κB p65, GM-CSF, iNOS, IL-6, and TNF-α mRNA expression level was observed in PD98059-treated mice with EAE compared with vehicle-treated control mice in the brain tissue. The results of this study demonstrate that PD98059 modulates inflammatory mediators through multiple cellular mechanisms. The results of this study suggest that PD98059 may be pursued as a therapeutic agent for the treatment of MS.
Collapse
Affiliation(s)
- Hatun A Alomar
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mushtaq A Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saleh A Bakheet
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Haneen A Al-Mazroua
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Khalid Alhazzani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed A Assiri
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed Alqinyah
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sultan Almudimeegh
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sheikh F Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
| |
Collapse
|
6
|
Zerfaoui M, Tsumagari K, Toraih E, Errami Y, Ruiz E, Elaasar MSM, Krzysztof M, Sholl AB, Magdeldin S, Soudy M, Abd Elmageed ZY, Boulares AH, Kandil E. Nuclear interaction of Arp2/3 complex and BRAF V600E promotes aggressive behavior and vemurafenib resistance of thyroid cancer. Am J Cancer Res 2022; 12:3014-3033. [PMID: 35968344 PMCID: PMC9360225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 05/12/2022] [Indexed: 04/22/2023] Open
Abstract
The presence of mutant BRAF V600E correlates with the risk of recurrence in papillary thyroid cancer (PTC) patients. However, not all PTC patients with BRAF V600E are associated with poor prognosis. Thus, understanding the mechanisms by which certain PTC patients with nuclear BRAF V600E become aggressive and develop resistance to a selective BRAF inhibitor, PLX-4032, is urgently needed. The effect of nuclear localization of BRAFV600E using in vitro studies, xenograft mouse-model and human tissues was evaluated. PTC cells harboring a nuclear localization signal (NLS) of BRAFV600E were established and examined in nude mice implanted with TPC1-NLS-BRAFV600E cells followed by PLX-4032 treatment. Immunohistochemical (IHC) analysis was performed on 100 PTC specimens previously confirmed that they have BRAFV600E mutations. Our results demonstrate that 21 of 100 (21%) PTC tissues stained with specific BRAFV600E antibody had nuclear staining with more aggressive features compared to their cytosolic counterparts. In vitro studies show that BRAFV600E is transported between the nucleus and the cytosol through CRM1 and importin (α/β) system. Sequestration of BRAFV600E in the cytosol sensitized resistant cells to PLX-4032, whereas nuclear BRAFV600E was associated with aggressive phenotypes and developed drug resistance. Proteomic analysis revealed Arp2/3 complex members, actin-related protein 2 (ACTR2 aliases ARP2) and actin-related protein 3 (ACTR3 aliases ARP3), as the most enriched nuclear BRAFV600E partners. ACTR3 was highly correlated to lymph node stage and extrathyroidal extension and was validated with different functional assays. Our findings provide new insights into the clinical utility of the nuclear BRAFV600E as a prognostic marker for PTC aggressiveness and determine the efficacy of selective BRAFV600E inhibitor treatment which opens new avenues for future treatment options.
Collapse
Affiliation(s)
- Mourad Zerfaoui
- Department of Surgery, Tulane University School of MedicineUSA
| | - Koji Tsumagari
- Department of Surgery, Tulane University School of MedicineUSA
| | - Eman Toraih
- Department of Surgery, Tulane University School of MedicineUSA
| | - Youssef Errami
- Department of Surgery, Tulane University School of MedicineUSA
| | - Emmanuelle Ruiz
- Department of Surgery, Tulane University School of MedicineUSA
| | | | - Moroz Krzysztof
- Department of Pathology, Tulane University School of MedicineUSA
| | - Andrew B Sholl
- Department of Otolaryngology, Tulane University School of MedicineUSA
| | - Sameh Magdeldin
- Proteomics Research Program Unit, Basic Research Department, Children Cancer Hospital CairoEgypt
- Department of Physiology, Faculty of Veterinary Medicine, Suez Canal UniversityIsmailia 41522, Egypt
| | - Mohamed Soudy
- Proteomics Research Program Unit, Basic Research Department, Children Cancer Hospital CairoEgypt
| | - Zakaria Y Abd Elmageed
- Department of Surgery, Tulane University School of MedicineUSA
- Department of Pharmacology, Edward Via College of Osteopathic Medicine, University of LouisianaMonroe, USA
| | - A Hamid Boulares
- Department of Pharmacology, LSU Health Sciences CenterNew Orleans, LA, USA
| | - Emad Kandil
- Department of Surgery, Tulane University School of MedicineUSA
| |
Collapse
|
7
|
Functional regulations between genetic alteration-driven genes and drug target genes acting as prognostic biomarkers in breast cancer. Sci Rep 2022; 12:10641. [PMID: 35739271 PMCID: PMC9226112 DOI: 10.1038/s41598-022-13835-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/30/2022] [Indexed: 12/19/2022] Open
Abstract
Differences in genetic molecular features including mutation, copy number alterations and DNA methylation, can explain interindividual variability in response to anti-cancer drugs in cancer patients. However, identifying genetic alteration-driven genes and characterizing their functional mechanisms in different cancer types are still major challenges for cancer studies. Here, we systematically identified functional regulations between genetic alteration-driven genes and drug target genes and their potential prognostic roles in breast cancer. We identified two mutation and copy number-driven gene pairs (PARP1-ACSL1 and PARP1-SRD5A3), three DNA methylation-driven gene pairs (PRLR-CDKN1C, PRLR-PODXL2 and PRLR-SRD5A3), six gene pairs between mutation-driven genes and drug target genes (SLC19A1-SLC47A2, SLC19A1-SRD5A3, AKR1C3-SLC19A1, ABCB1-SRD5A3, NR3C2-SRD5A3 and AKR1C3-SRD5A3), and four copy number-driven gene pairs (ADIPOR2-SRD5A3, CASP12-SRD5A3, SLC39A11-SRD5A3 and GALNT2-SRD5A3) that all served as prognostic biomarkers of breast cancer. In particular, RARP1 was found to be upregulated by simultaneous copy number amplification and gene mutation. Copy number deletion and downregulated expression of ACSL1 and upregulation of SRD5A3 both were observed in breast cancers. Moreover, copy number deletion of ACSL1 was associated with increased resistance to PARP inhibitors. PARP1-ACSL1 pair significantly correlated with poor overall survival in breast cancer owing to the suppression of the MAPK, mTOR and NF-kB signaling pathways, which induces apoptosis, autophagy and prevents inflammatory processes. Loss of SRD5A3 expression was also associated with increased sensitivity to PARP inhibitors. The PARP1-SRD5A3 pair significantly correlated with poor overall survival in breast cancer through regulating androgen receptors to induce cell proliferation. These results demonstrate that genetic alteration-driven gene pairs might serve as potential biomarkers for the prognosis of breast cancer and facilitate the identification of combination therapeutic targets for breast cancers.
Collapse
|
8
|
Korunes KL, Liu J, Huang R, Xia M, Houck KA, Corton JC. A gene expression biomarker for predictive toxicology to identify chemical modulators of NF-κB. PLoS One 2022; 17:e0261854. [PMID: 35108274 PMCID: PMC8809623 DOI: 10.1371/journal.pone.0261854] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 12/12/2021] [Indexed: 11/29/2022] Open
Abstract
The nuclear factor-kappa B (NF-κB) is a transcription factor with important roles in inflammation, immune response, and oncogenesis. Dysregulation of NF-κB signaling is associated with inflammation and certain cancers. We developed a gene expression biomarker predictive of NF-κB modulation and used the biomarker to screen a large compendia of gene expression data. The biomarker consists of 108 genes responsive to tumor necrosis factor α in the absence but not the presence of IκB, an inhibitor of NF-κB. Using a set of 450 profiles from cells treated with immunomodulatory factors with known NF-κB activity, the balanced accuracy for prediction of NF-κB activation was > 90%. The biomarker was used to screen a microarray compendium consisting of 12,061 microarray comparisons from human cells exposed to 2,672 individual chemicals to identify chemicals that could cause toxic effects through NF-κB. There were 215 and 49 chemicals that were identified as putative or known NF-κB activators or suppressors, respectively. NF-κB activators were also identified using two high-throughput screening assays; 165 out of the ~3,800 chemicals (ToxCast assay) and 55 out of ~7,500 unique compounds (Tox21 assay) were identified as potential activators. A set of 32 chemicals not previously associated with NF-κB activation and which partially overlapped between the different screens were selected for validation in wild-type and NFKB1-null HeLa cells. Using RT-qPCR and targeted RNA-Seq, 31 of the 32 chemicals were confirmed to be NF-κB activators. These results comprehensively identify a set of chemicals that could cause toxic effects through NF-κB.
Collapse
Affiliation(s)
- Katharine L. Korunes
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America
- Biology Department, Duke University, Durham, North Carolina, United States of America
| | - Jie Liu
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America
| | - Ruili Huang
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Menghang Xia
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Keith A. Houck
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America
| | - J. Christopher Corton
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America
- * E-mail:
| |
Collapse
|
9
|
Xiao L, Zhong M, Huang Y, Zhu J, Tang W, Li D, Shi J, Lu A, Yang H, Geng D, Li H, Wang Z. Puerarin alleviates osteoporosis in the ovariectomy-induced mice by suppressing osteoclastogenesis via inhibition of TRAF6/ROS-dependent MAPK/NF-κB signaling pathways. Aging (Albany NY) 2020; 12:21706-21729. [PMID: 33176281 PMCID: PMC7695364 DOI: 10.18632/aging.103976] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 08/01/2020] [Indexed: 04/29/2023]
Abstract
In this study, we investigated the mechanisms by which puerarin alleviates osteoclast-related loss of bone mass in ovariectomy (OVX)-induced osteoporosis model mice. Puerarin-treated OVX mice exhibited higher bone density, fewer tartrate-resistant acid phosphatase (TRAcP)-positive osteoclasts, and levels of lower reactive oxygen species (ROS) within bone tissues than vehicle-treated OVX mice. Puerarin suppressed in vitro osteoclast differentiation, hydroxyapatite resorption activity, and expression of osteoclastogenesis-related genes, such as NFATc1, MMP9, CTSK, Acp5 and c-Fos, in RANKL-induced bone marrow macrophages (BMMs) and RAW264.7 cells. It also reduced intracellular ROS levels by suppressing expression of TRAF6 and NADPH oxidase 1 (NOX1) and increasing expression of antioxidant enzymes such as heme oxygenase-1 (HO-1). Puerarin inhibited TRAF6/ROS-dependent activation of the MAPK and NF-κB signaling pathways in RANKL-induced RAW264.7 cells, and these effects were partially reversed by HO-1 silencing or TRAF6 overexpression. These findings suggest puerarin alleviates loss of bone mass in the OVX-model mice by suppressing osteoclastogenesis via inhibition of the TRAF6/ROS-dependent MAPK/NF-κB signaling pathway.
Collapse
Affiliation(s)
- Long Xiao
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Mengdan Zhong
- Department of Endocrinology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Yu Huang
- Department of Gynecology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
- Department of Gynecology, The First People's Hospital of Zhangjiagang, Soochow University, Zhangjiagang 215600, China
| | - Jie Zhu
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Wenkai Tang
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Danyong Li
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Jiandong Shi
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Aiqing Lu
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Huilin Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Hong Li
- Department of Endocrinology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Zhirong Wang
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| |
Collapse
|
10
|
Abdraboh ME, Essa ZS, Abdelrazzak AB, El-Far YM, Elsherbini Y, El-Zayat MM, Ali DA. Radio-sensitizing effect of a cocktail of phytochemicals on HepG2 cell proliferation, motility and survival. Biomed Pharmacother 2020; 131:110620. [PMID: 32892028 DOI: 10.1016/j.biopha.2020.110620] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/28/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023] Open
Abstract
Radio-resistance is a major hurdle challenging oncologist worldwide. Despite their anti-cancer characteristics, the implication of phytochemicals in clinical trials is still limited. This study is designed to evaluate the anticancer characteristics and radio-sensitizing effect of a cocktail of seven phytochemicals on HepG2 cells. Characterization of phytochemicals combination phenolic and flavonoids content as well as their scavenging activity were tested. The effective concentration of BSG that will be used as a radio-sensitizing dose was calculated using AlamarBlue assay. Treatment of HepG2 cells with BSG and/or ionizing radiations led to significant downregulation at cell proliferation as indicated by the decrease of colony formation ratio, proliferation marker (Ki67) expression as well as G2/M cell cycle arrest. The combined treatment stimulated P53-dependent apoptosis which was indicated by the significant increase of early apoptosis marker (Annexin V) expression, DNA fragmentation, expression of P53 & Bax and downregulation of Bcl2 expression. Combined treatment significantly attenuated HepG2 cell motility which was validated using wound healing migration assay and the significant reduction at CD95 expression. This study demonstrates the anti-cancer effect of BSG and its fundamental role in provoking cell responsiveness to IR leading to a significant inhibition at HepG2 cell proliferation, survival and migration.
Collapse
Affiliation(s)
- Mohamed E Abdraboh
- Associate Professor of Molecular Cell Biology, Department of Zoology, Faculty of Science, Mansoura University, Egypt.
| | - Zaidoon Shaker Essa
- MSc of Molecular Cell Biology, Department of Zoology, Faculty of Science, Mansoura University, Egypt
| | - Abdelrazek B Abdelrazzak
- Associate Professor of Biophysics, Spectroscopy Department, Physics Research Division, National Research Center, Egypt
| | - Yousra M El-Far
- Lecturer of Biochemistry, Faculty of Pharmacy, Mansoura University, Egypt
| | | | - Mustafa M El-Zayat
- Unit of Genetic Engineering and Biotechnology, Mansoura University, Mansoura, Egypt
| | - Doaa A Ali
- Associate Professor of Histology and Cell Biology, Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
| |
Collapse
|
11
|
Yin Y, Che K, Hu J, Hua H, Dong A, Wang J, Yu J, Zhang Q, Zhao S, Zhao Y, Wang P, Wang F, Wang Y, Chi J, Sun W. Hypermethylation of the RSK4 promoter associated with BRAF V600E promotes papillary thyroid carcinoma. Int J Oncol 2020; 56:1284-1293. [PMID: 32319586 DOI: 10.3892/ijo.2020.4999] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/06/2020] [Indexed: 11/06/2022] Open
Abstract
Ribosomal S6 kinase 4 (RSK4) is a putative tumor suppressor gene which is inactivated by epigenetic events in a number human malignancies; however, its role in papillary thyroid carcinoma (PTC) remains largely unknown. The aim of this study was to explore the methylation status of the RSK4 promoter in PTC, and to determine its potential role in thyroid carcinogenesis. Reverse transcription‑quantitative PCR (RT‑qPCR) and western blot analyses were performed to examine the RSK4 mRNA and protein levels, respectively. Methylation‑specific PCR (MSP) and bisulfite genomic sequencing (BGS) were used to analyze methylation status of the RSK4 gene. Sanger sequencing was further carried out to detect the BRAF V600E mutation. Cell proliferation assay was finally performed to evaluate the role of hypermethylation in the growth of PTC cells. The association between RSK4 methylation and the clinicopathological characteristics of patients with PTC was assessed. The methylation frequency of the RSK4 promoter in PTC tissues was higher than that in paired paracancerous tissues. Coincidentally, the RSK4 mRNA levels were also downregulated in PTC tissues when compared with the paracancerous counterparts. The hypermethylation of RSK4 was associated with tumor size and lymph node metastasis. Furthermore, the BRAF V600E mutation may influence RSK4 expression and methylation. Moreover, RSK4 hypermethylation was observed in thyroid cancer cell lines, which was consistent with a lack of RSK4 expression. Upon the 5‑Aza‑deoxycytidine treatment of thyroid cancer cells, RSK4 expression was significantly upregulated, while cell proliferation was inhibited. On the whole, the findings of the present study demonstrate that the hypermethylation of the RSK4 promoter may be one of the mechanisms responsible for the poor RSK4 expression in PTC. Thus, these data suggest that RSK4 may serve as a molecular target for the early diagnosis and treatment of PTC.
Collapse
Affiliation(s)
- Yanan Yin
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Kui Che
- Qingdao Key Laboratory of Thyroid Diseases, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jianxia Hu
- Qingdao Key Laboratory of Thyroid Diseases, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Hui Hua
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Anbing Dong
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jueru Wang
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jiarui Yu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Qing Zhang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Shihua Zhao
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Yuhang Zhao
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Ping Wang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Fei Wang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Yangang Wang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jingwei Chi
- Qingdao Key Laboratory of Thyroid Diseases, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Wenhai Sun
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| |
Collapse
|
12
|
VCAM-1 Upregulation Contributes to Insensitivity of Vemurafenib in BRAF-Mutant Thyroid Cancer. Transl Oncol 2020; 13:441-451. [PMID: 31911278 PMCID: PMC6948368 DOI: 10.1016/j.tranon.2019.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/11/2019] [Accepted: 10/14/2019] [Indexed: 12/13/2022] Open
Abstract
Vemurafenib, an inhibitor of mutant BRAF activity, is a promising anticancer agent for patients with BRAF-mutant metastatic melanoma. However, it is less effective in BRAF-mutant thyroid cancer, and the reason for this discrepancy is not yet fully elucidated. By RNA sequencing analysis, we identified vascular cell adhesion molecular-1 (VCAM-1) to be highly upregulated in both time- and dose-dependent manners during BRAF inhibition (BRAFi) in a BRAF-mutant papillary thyroid cancer cell line (BCPAP). Cell cytotoxicity and apoptosis assays showed that knockdown of the induced VCAM-1 in BCPAP cells augmented the antitumor effects of vemurafenib, with decreased IC50 values of 1.4 to 0.8 μM. Meanwhile, overexpression of VCAM-1 in a BRAF-mutant anaplastic thyroid cancer cell line (FRO) reduced the sensitivity to vemurafenib, with increased IC50 values of 1.9 to 5.8 μM. Further investigation showed that PI3K-Akt-mTOR pathway was activated during BRAFi. Co-treatment with Akt signaling inhibitor MK2206 decreased the induced expression of VCAM-1 during BRAFi. This combination further improved the efficacy of vemurafenib. Moreover, VCAM-1 promoted migration and invasion in thyroid cancer cells in vitro, which was also indicated in thyroid cancer patients. The present study is the first to demonstrate that VCAM-1 is upregulated in thyroid cancer cells treated with vemurafenib and contributes to vemurafenib resistance in BRAF-mutant thyroid cancer cells. Targeting the PI3K-Akt-mTOR pathway–mediated VCAM-1 response may be an alternative strategy to sensitize BRAF-mutant thyroid cancers to vemurafenib.
Collapse
|
13
|
Comprehensive Analysis of ERK1/2 Substrates for Potential Combination Immunotherapies. Trends Pharmacol Sci 2019; 40:897-910. [DOI: 10.1016/j.tips.2019.09.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 09/10/2019] [Accepted: 09/13/2019] [Indexed: 12/25/2022]
|
14
|
Li Z, Lu J, Zeng G, Pang J, Zheng X, Feng J, Zhang J. MiR-129-5p inhibits liver cancer growth by targeting calcium calmodulin-dependent protein kinase IV (CAMK4). Cell Death Dis 2019; 10:789. [PMID: 31624237 PMCID: PMC6797732 DOI: 10.1038/s41419-019-1923-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 04/10/2019] [Accepted: 04/29/2019] [Indexed: 02/06/2023]
Abstract
This study was designed to investigate the mechanism by which miR-129-5p affects the biological function of liver cancer cells. The expression levels of miR-129–5p in liver cancer tissues and cells were, respectively, determined. Crystal violet staining and flow cytometry were used to detect cell proliferation and apoptosis. Wound healing assay and transwell assay were performed to test cell migration and invasion. The target gene of miR-129–5p was analyzed and verified by bioinformatics analysis and luciferase reporter assay. Tumorigenicity assays in nude mice were used to test the antitumor ability of calcium calmodulin-dependent protein kinase IV (CAMK4). miR-129–5p was found to be underexpressed in hepatocellular cancer tissues and cells and also to inhibit liver cells proliferation, migration, and invasion and promote apoptosis. CAMK4 was a direct target for miR-129–5p and was lowly expressed in liver cancer tissues and cells. CAMK4 was also found to inhibit liver cells proliferation, migration and invasion, and promote apoptosis. CAMK4 might exert an antitumor effect by inhibiting the activation of mitogen-activated protein kinase (MAPK). MiR-129–5p was a tumor suppressor with low expression in liver cancer tissues and cells. CAMK4, which is a direct target gene of miR-129–5p, could inhibit tumor by inhibiting the activation of MAPK signaling pathway.
Collapse
Affiliation(s)
- Zhengzhao Li
- Department of Emergency, the Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Junyu Lu
- Department of Intensive Care Unit, the Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Guang Zeng
- Department of Emergency, the Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jielong Pang
- Department of Emergency, the Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaowen Zheng
- Department of Emergency, the Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jihua Feng
- Department of Emergency, the Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jianfeng Zhang
- Department of Emergency, the Second Affiliated Hospital of Guangxi Medical University, Nanning, China.
| |
Collapse
|
15
|
Dang Q, Chen L, Xu M, You X, Zhou H, Zhang Y, Shi W. The γ-secretase inhibitor GSI-I interacts synergistically with the proteasome inhibitor bortezomib to induce ALK+ anaplastic large cell lymphoma cell apoptosis. Cell Signal 2019; 59:76-84. [PMID: 30878517 DOI: 10.1016/j.cellsig.2019.03.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 03/11/2019] [Accepted: 03/12/2019] [Indexed: 12/21/2022]
Abstract
Single agent treatment of the γ-secretase inhibitor (GSI-I) or proteasome inhibitor in anaplastic lymphoma kinase positive anaplastic large cell lymphoma (ALK+ ALCL) shows limited response and considerable toxicity. Here, we examined the effects of the combination of low dose GSI-I and the proteasome inhibitor bortezomib (BTZ) in ALK+ ALCL cells in vivo and in vitro. We found that ALK+ ALCL cells treated with the BTZ and GSI-I combination treatment showed elevated apoptosis, consistent with increased caspase activation, compared with BTZ or GSI-I alone. The combination treatment also inhibited AKT and extracellular signal-related kinase pathways, as well as stress-related cascades, including the c-jun N-terminal kinase and stress-activated kinases. Moreover, combined treatment in a murine xenograft model resulted in increased apoptosis in tumor tissues and reduced tumor growth. Our results reveal the synergistic anti-tumor effects of low dose inhibitors against γ-secretase and the proteasome and suggest the potential application of the tolerable BTZ/GSI-I combined agents in treating ALK+ ALCL in future clinical treatment.
Collapse
Affiliation(s)
- Qingxiu Dang
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Lili Chen
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Mengqi Xu
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Xuefen You
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Hong Zhou
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Yaping Zhang
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China.
| | - Wenyu Shi
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China.
| |
Collapse
|
16
|
Yin DT, He H, Yu K, Xie J, Lei M, Ma R, Li H, Wang Y, Liu Z. The association between thyroid cancer and insulin resistance, metabolic syndrome and its components: A systematic review and meta-analysis. Int J Surg 2018; 57:66-75. [PMID: 30081182 DOI: 10.1016/j.ijsu.2018.07.013] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 06/15/2018] [Accepted: 07/28/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Thyroid cancer is rapidly increasing in incidence worldwide in the past several decades, same as the incidence of metabolic syndrome. We performed a system review and meta-analysis of the association between metabolic syndrome, its components and insulin resistance and thyroid cancer incidence. METHODS We searched several computer-assisted databases PUBMED, EMBASE and ISI Web of Science to identify studies published before 31st January 2018. Every study must report either risk estimates of thyroid cancer incidence with 95% confidence interval (CI) or related data can speculate. Two investigators independently identified eligible studies and extracted data. Evaluating the summaries of relative risk estimates use both fixed and random effects methods. RESULTS We found 42 articles met the inclusion criteria of this review. There is an increased risk for thyroid cancer for patients with insulin resistance (relative risk [RR] = 1.59, 95%confidence interval [CI] = 1.12-2.27, P = 0.01), dysglycemia (RR = 1.40, 95%CI = 1.15-1.70,P < 0.001), high BMI (RR = 1.35,95%CI = 1.23-1.48,P < 0.001) and hypertension(RR = 1.34,95%CI = 1.22-1.47, p < 0.001). However, patients with dyslipidemia, both total cholesterol (RR = 1.09, 95%CI = 0.98-1.21, P = 0.13) and triglyceride (RR = 1.01, 95%CI = 0.91-1.12, P = 0.82) was not associated with thyroid cancer. CONCLUSIONS Our meta-analysis showed Insulin Resistance, dysglycemia, high BMI and hypertension significantly increased the thyroid cancer risk. These results may help identify people with high risk of thyroid cancer and change to healthy life style.
Collapse
Affiliation(s)
- De-Tao Yin
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China; Key Discipline Laboratory of Clinical Medicine Henan, Zhengzhou, 450052, PR China.
| | - Huanan He
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China; Key Discipline Laboratory of Clinical Medicine Henan, Zhengzhou, 450052, PR China; Department of General Surgery, the First People's Hospital of Pingdingshan, Pingdingshan, 467000, PR China
| | - Kun Yu
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China; Key Discipline Laboratory of Clinical Medicine Henan, Zhengzhou, 450052, PR China
| | - Jing Xie
- Center for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, Australia
| | - Mengyuan Lei
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China; Key Discipline Laboratory of Clinical Medicine Henan, Zhengzhou, 450052, PR China
| | - Runsheng Ma
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China; Key Discipline Laboratory of Clinical Medicine Henan, Zhengzhou, 450052, PR China
| | - Hongqiang Li
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China; Key Discipline Laboratory of Clinical Medicine Henan, Zhengzhou, 450052, PR China
| | - Yongfei Wang
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China; Key Discipline Laboratory of Clinical Medicine Henan, Zhengzhou, 450052, PR China
| | - Zhen Liu
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China; Key Discipline Laboratory of Clinical Medicine Henan, Zhengzhou, 450052, PR China
| |
Collapse
|
17
|
Das TK, Esernio J, Cagan RL. Restraining Network Response to Targeted Cancer Therapies Improves Efficacy and Reduces Cellular Resistance. Cancer Res 2018; 78:4344-4359. [DOI: 10.1158/0008-5472.can-17-2001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 10/04/2017] [Accepted: 05/21/2018] [Indexed: 11/16/2022]
|
18
|
Prognostic Role of BRAF V600E Cellular Localization in Melanoma. J Am Coll Surg 2018; 226:526-537. [PMID: 29369798 DOI: 10.1016/j.jamcollsurg.2017.12.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 01/27/2023]
Abstract
BACKGROUND Approximately half of cutaneous melanoma tissues harbor BRAFV600E mutations, resulting in a constitutive activation of the mitogen-activated protein kinase (MAPK) pathway. Nuclear-cytoplasmic transport machinery is dysregulated in neoplastic cells and alters the key regulatory proteins that can lead to tumor progression and drug resistance. The significance of nuclear localization of BRAFV600E has not been fully understood. We examined the clinical significance of intracellular localization of BRAFV600E in cutaneous melanoma. STUDY DESIGN Immunohistochemical analysis of BRAFV600E was performed on formalin-fixed, paraffin-embedded specimens of cutaneous melanoma (n = 91). Staining intensity was graded in a blinded manner. Correlations to clinical factors were analyzed by Fisher's exact test and 2-tailed t-test. Localization of BRAFV600E was determined in melanoma cells, and we investigated their resistance to BRAFV600E-specific inhibitor according to nuclear localization in both in vitro and in vivo models. RESULTS We included 91 patients, of whom 32% (29 of 91) had cytoplasmic BRAFV600E. Nuclear BRAFV600E was observed in 30% (27 of 91). Overall, BRAFV600E expression correlated with TNM stage (p = 0.011), mitotic activity (p = 0.010), and ulceration (p = 0.045). Nuclear BRAFV600E expression correlated with overall clinical stage (p < 0.001), tumor size (p < 0.001), regional lymph node (p < 0.017), depth of invasion (p = 0.005), Clark level (p < 0.001), mitotic activity (p < 0.001), ulceration (p < 0.001), and margin status (p = 0.017). On a cellular level, BRAFV600E was identified in the nucleus, and its translocation was serum dependent. Our in vitro and in vivo data revealed sequestration of BRAFV600E in the cytosol-sensitized resistant cells to vemurafenib; nuclear retention of BRAFV600E was associated with aggressiveness and drug resistance. CONCLUSIONS Nuclear localization of BRAFV600E is associated with melanoma aggressiveness. Further multi-institutional studies are warranted to confirm the clinical relevance of nuclear localization of BRAFV600E.
Collapse
|
19
|
Ali I, Manzoor Z, Koo JE, Kim JE, Byeon SH, Yoo ES, Kang HK, Hyun JW, Lee NH, Koh YS. 3-Hydroxy-4,7-megastigmadien-9-one, isolated from Ulva pertusa, attenuates TLR9-mediated inflammatory response by down-regulating mitogen-activated protein kinase and NF-κB pathways. PHARMACEUTICAL BIOLOGY 2017; 55:435-440. [PMID: 27937044 PMCID: PMC6130523 DOI: 10.1080/13880209.2016.1246574] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
CONTEXT Seaweeds are rich in bioactive compounds in the form of vitamins, phycobilins, polyphenols, carotenoids, phycocyanins and polysaccharides; many of these are known to have advantageous applications in human health. 3-Hydroxy-4,7-megastigmadien-9-one (comp) was isolated from Ulva pertusa (U. pertusa) Kjellman (Ulvaceae), which is a familiar edible green seaweed. OBJECTIVE This study evaluates the anti-inflammatory activity of comp in CpG DNA-stimulated bone marrow-derived dendritic cells (BMDCs). MATERIALS AND METHODS For evaluating the effect of comp on cytokines production, BMDCs were treated with doses of comp (0, 0.5, 1, 2, 5, 10, 25 and 50 μM) for 1 h before stimulation with CpG DNA (1 μM). Cytokine production was measured by ELISA. Western blotting was conducted for evaluating effect of comp (50 μM) on MAPKs and NF-κB pathways. Luciferase reporter gene assay was conducted for effect of comp (0, 5, 10 and 25 μM) on transcriptional activity of AP-1 and NF-κB. RESULTS Comp exhibited strong inhibition of interleukin (IL)-12 p40, IL-6 and TNF-α cytokine production with IC50 values of 6.02 ± 0.35, 27.14 ± 0.73, and 7.56 ± 0.21 μM, respectively. It blocked MAPKs and NF-κB pathways by inhibiting the phosphorylation of ERK1/2, JNK1/2, p38 and IκBα. In addition, it strongly inhibited the transcriptional activity of AP-1 and NF-κB with IC50 values of 8.74 ± 0.31 and 12.08 ± 0.24 μM, respectively. DISCUSSION AND CONCLUSION Taken together, these data suggest that comp has a significant anti-inflammatory property and warrants further studies concerning the potential of comp for medicinal use.
Collapse
Affiliation(s)
- Irshad Ali
- School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, South Korea
- Institute of Medical Science, Jeju National University, Jeju, South Korea
| | - Zahid Manzoor
- School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, South Korea
- Institute of Medical Science, Jeju National University, Jeju, South Korea
| | - Jung-Eun Koo
- School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, South Korea
- Institute of Medical Science, Jeju National University, Jeju, South Korea
| | - Jung-Eun Kim
- Department of Chemistry and Cosmetics, College of Natural Sciences, Jeju National University, Jeju, South Korea
| | - Sang-Hee Byeon
- Department of Chemistry and Cosmetics, College of Natural Sciences, Jeju National University, Jeju, South Korea
| | - Eun-Sook Yoo
- School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, South Korea
- Institute of Medical Science, Jeju National University, Jeju, South Korea
| | - Hee-Kyoung Kang
- School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, South Korea
- Institute of Medical Science, Jeju National University, Jeju, South Korea
| | - Jin-Won Hyun
- School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, South Korea
- Institute of Medical Science, Jeju National University, Jeju, South Korea
| | - Nam-Ho Lee
- Department of Chemistry and Cosmetics, College of Natural Sciences, Jeju National University, Jeju, South Korea
| | - Young-Sang Koh
- School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, South Korea
- Institute of Medical Science, Jeju National University, Jeju, South Korea
- CONTACT Young-Sang KohDepartment of Microbiology and Immunology, Jeju National University School of Medicine, 102 Jejudaehakno, Jeju63243, South Korea
| |
Collapse
|
20
|
Du Q, Wang Y, Liu C, Wang H, Fan H, Li Y, Wang J, Zhang X, Lu J, Ji H, Hu R. Chemopreventive activity of GEN-27, a genistein derivative, in colitis-associated cancer is mediated by p65-CDX2-β-catenin axis. Oncotarget 2017; 7:17870-84. [PMID: 26910375 PMCID: PMC4951256 DOI: 10.18632/oncotarget.7554] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 02/11/2016] [Indexed: 02/06/2023] Open
Abstract
Nonresolving inflammation in the intestine predisposes individuals to colitis-associated colorectal cancer (CAC), which leads to high morbidity and mortality. Here we show that genistein-27 (GEN-27), a derivative of genistein, inhibited proliferation of human colorectal cancer cells through inhibiting β-catenin activity. Our results showed that GEN-27 increased expressions of adenomatous polyposis coli (APC) and axis inhibition protein 2 (AXIN2), and reduced β-catenin nuclear localization, which resulted from the inhibition of NF-κB/p65 nuclear localization and up-regulation of caudal-related homeobox transcription factor 2 (CDX2). Furthermore, GEN-27 decreased binding of p65 to the silencer region of CDX2 and increased binding of CDX2 to the promoter regions of APC and AXIN2, thus inhibiting the activation of β-catenin induced by TNF-α. Importantly, GEN-27 protected mice from azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced colon carcinogenesis, with reduced mortality, tumor number and tumor volume. Histopathology, immunohistochemistry and flow cytometry revealed that dietary GEN-27 significantly decreased secretion of proinflammatory cytokines and macrophage infiltration. Moreover, GEN-27 inhibited AOM/DSS-induced p65 and β-catenin nuclear translocation, while promoted the expression of CDX2, APC, and AXIN2. Taken together, our findings demonstrate that the anti-proliferation effect of GEN-27 in vitro and the prevention of CAC in vivo is mediated by p65-CDX2-β-catenin axis via inhibiting β-catenin target genes. Our results imply that GEN-27 could be a promising candidate for the chemoprevention of CAC.
Collapse
Affiliation(s)
- Qianming Du
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
| | - Yajing Wang
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
| | - Chao Liu
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
| | - Hong Wang
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
| | - Huimin Fan
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
| | - Yan Li
- Department of Chronic Communicable Disease, Jiangsu Provincial Center for Disease Prevention and Control, Jiangsu, Nanjing, P.R.China
| | - Jianing Wang
- Neurobiology Laboratory, Jiangsu Center for Drug Screening, China Pharmaceutical University, Jiangsu, Nanjing, P.R.China
| | - Xu Zhang
- College of Clinical Medicine, Chengdu University of TCM, Chengdu, P.R. China
| | - Jinrong Lu
- Department of Organic Chemistry, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
| | - Hui Ji
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
| | - Rong Hu
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
| |
Collapse
|
21
|
Yang B, Yang YS, Yang N, Li G, Zhu HL. Design, biological evaluation and 3D QSAR studies of novel dioxin-containing pyrazoline derivatives with thiourea skeleton as selective HER-2 inhibitors. Sci Rep 2016; 6:27571. [PMID: 27273260 PMCID: PMC4897788 DOI: 10.1038/srep27571] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 05/23/2016] [Indexed: 12/31/2022] Open
Abstract
A series of novel dioxin-containing pyrazoline derivatives with thiourea skeleton have been designed, synthesized and evaluated for their EGFR/HER-2 inhibitory and anti-proliferation activities. A majority of them displayed selective HER-2 inhibitory activity against EGFR inhibitory activity. Compound C20 displayed the most potent activity against HER-2 and MDA-MB-453 human breast cancer cell line (IC50 = 0.03 μM and GI50 = 0.15 μM), being slightly more potent than the positive control Erlotinib (IC50 = 0.16 μM and GI50 = 1.56 μM) and comparable with Lapatinib (IC50 = 0.01 μM and GI50 = 0.03 μM). It is a more exciting result that C20 was over 900 times more potent against HER-2 than against EGFR while this value was 0.19 for Erlotinib and 1.00 for Lapatinib, indicating high selectivity. The results of docking simulation indicate that the dioxin moiety occupied the exit of the active pocket and pushed the carbothioamide deep into the active site. QSAR models have been built with activity data and binding conformations to begin our work in this paper as well as to provide a reliable tool for reasonable design of EGFR/HER-2 inhibitors in future.
Collapse
Affiliation(s)
- Bing Yang
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yu-Shun Yang
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.,State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China
| | - Na Yang
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.,State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China
| | - Guigen Li
- Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China
| |
Collapse
|
22
|
Du Q, Wang Q, Fan H, Wang J, Liu X, Wang H, Wang Y, Hu R. Dietary cholesterol promotes AOM-induced colorectal cancer through activating the NLRP3 inflammasome. Biochem Pharmacol 2016; 105:42-54. [DOI: 10.1016/j.bcp.2016.02.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 02/23/2016] [Indexed: 12/12/2022]
|
23
|
Zhao Z, Wang F, Fang C, Wang G, Shuang J, Chu G, Hu S, Chen L, Du J. A possible role of GDDR in the development of Helicobacter pylori-associated gastric cancer. Tumour Biol 2016; 37:10303-15. [PMID: 26842925 DOI: 10.1007/s13277-016-4862-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 01/13/2016] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori (H. pylori) infection plays an important part in the development of gastric carcinoma. GDDR has been confirmed as a tumor suppressor gene in gastric tumorigenesis. However, the underlying mechanism of GDDR in H. pylori-induced carcinogenesis is not well known. The aim of this study is to investigate the clinicopathological significance and possible molecular mechanism of GDDR in gastric cancer associated with H. pylori. Western blot, real-time quantitative PCR (qRT-PCR), and immunohistochemistry were used to detect the expression level of GDDR with or without H. pylori infection. The function and possible related molecular mechanisms of GDDR were further explored in vitro and in vivo. The variability of GDDR expression appeared in the early stage of gastric carcinogenesis with positive H. pylori infection status. GDDR might inhibit the progression of normal gastric epithelial cells to cancer cells by suppressing NF-kappaB signaling pathway, which in turn could be regulated by H. pylori infection. Our results suggested, for the first time, that the gradual change in GDDR expression might not only be directly related to H. pylori infection but also be an early molecular event in the development of gastric carcinoma.
Collapse
Affiliation(s)
- Zhanwei Zhao
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi Province, 710032, China
| | - Fei Wang
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi Province, 710032, China
| | - Cheng Fang
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi Province, 710032, China
| | - Gang Wang
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi Province, 710032, China
| | - Jianbo Shuang
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi Province, 710032, China
| | - Guanghui Chu
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi Province, 710032, China
| | - Sijun Hu
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi Province, 710032, China
| | - Lin Chen
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi Province, 710032, China
| | - Jianjun Du
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 127 Changle Western Road, Xi'an, Shaanxi Province, 710032, China.
| |
Collapse
|
24
|
Ali I, Manzoor Z, Koh YS. 3-Hydroxy-4,7-megastigmadien-9-one, Isolated fromUlva pertusaKjellman, Inhibits LPS-Induced Inflammatory Response by Down-Regulating Mitogen-Activated Protein Kinase and NF-κB Pathways. ACTA ACUST UNITED AC 2016. [DOI: 10.4167/jbv.2016.46.3.167] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Irshad Ali
- Department of Microbiology and Immunology, School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, Korea
- Institute of Medical Science, Jeju National University, Jeju, Korea
| | - Zahid Manzoor
- Department of Microbiology and Immunology, School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, Korea
- Institute of Medical Science, Jeju National University, Jeju, Korea
| | - Young-Sang Koh
- Department of Microbiology and Immunology, School of Medicine and Brain Korea 21 PLUS Program, Jeju National University, Jeju, Korea
- Institute of Medical Science, Jeju National University, Jeju, Korea
| |
Collapse
|
25
|
Simultaneous Increases in Proliferation and Apoptosis of Vascular Smooth Muscle Cells Accelerate Diabetic Mouse Venous Atherosclerosis. PLoS One 2015; 10:e0141375. [PMID: 26488175 PMCID: PMC4619075 DOI: 10.1371/journal.pone.0141375] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 10/06/2015] [Indexed: 12/20/2022] Open
Abstract
Aims This study was designed to demonstrate simultaneous increases in proliferation and apoptosis of vascular smooth muscle cells (VSMCs) leading to accelerated vein graft remodeling and to explore the underlying mechanisms. Methods Vein grafts were performed in non-diabetic and diabetic mice. The cultured quiescent VSMCs were subjected to mechanical stretch stress (SS) and/or advanced glycosylation end products (AGEs). Harvested vein grafts and treated VSMCs were used to detect cell proliferation, apoptosis, mitogen-activated protein kinases (MAPKs) activation and SM-α-actin expression. Results Significantly thicker vessel walls and greater increases in proliferation and apoptosis were observed in diabetic vein grafts than those in non-diabetic. Both SS and AGEs were found to induce different activation of three members of MAPKs and simultaneous increases in proliferation and apoptosis of VSMCs, and combined treatment with both had a synergistic effect. VSMCs with strong SM-α-actin expression represented more activated JNKs or p38MAPK, and cell apoptosis, while the cells with weak SM-α-actin expression demonstrated preferential activation of ERKs and cell proliferation. In contrast, inhibition of MAPKs signals triggered significant decreases in VSMC proliferation, and apoptosis. Treatment of the cells with RNA interference of receptor of AGEs (RAGE) also resulted in significant decreases in both proliferation and apoptosis. Conclusions Increased pressure-induced SS triggers simultaneous increases in proliferation and apoptosis of VSMCs in the vein grafts leading to vein arterializations, which can be synergistically accelerated by high glucose-induced AGEs resulting in vein graft atherosclerosis. Either SS or AGEs and their combination induce simultaneous increases in proliferation and apoptosis of VSMCs via different activation of three members of MAPKs resulting from different VSMC subtypes classified by SM-α-actin expression levels.
Collapse
|