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Wang Y, Liu Y, Zhang Y, Zhang Z, Xu L, Wang J, Yang Y, Hu B, Yao Y, Wei M, Wang J, Tang B, Zhang K, Liu S, Yang G. Design, synthesis and evaluation of a pyrazolo[3,4-d]pyrimidine derivative as a novel and potent TGFβ1R1 inhibitor. Eur J Med Chem 2024; 271:116395. [PMID: 38626523 DOI: 10.1016/j.ejmech.2024.116395] [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] [Received: 02/23/2024] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 04/18/2024]
Abstract
The transforming growth factor β1 (TGFβ1)/SMAD signaling pathway regulates many vital physiological processes. The development of potent inhibitors targeting activin receptor-like kinase 5 (ALK5) would provide potential treatment reagents for various diseases. A significant number of ALK5 inhibitors have been discovered, and they are currently undergoing clinical evaluation at various stages. However, the clinical demands were far from being met. In this study, we utilized an alternative conformation-similarity-based virtual screening (CSVS) combined with a fragment-based drug designing (FBDD) strategy to efficiently discover a potent and active hit with a novel chemical scaffold. After structural optimization in the principle of group replacement, compound 57 was identified as the most promising ALK5 inhibitor. Compound 57 demonstrated significant inhibitory effects against the TGF-β1/SMAD signaling pathway. It could markedly attenuate the production of extracellular matrix (ECM) and deposition of collagen. Also, the lead compound showed adequate pharmacokinetic (PK) properties and good in vivo tolerance. Moreover, treatment with compound 57 in two different xerograph models showed significant inhibitory effects on the growth of pancreatic cancer cells. These results suggested that lead compound 57 refers as a promising ALK5 inhibitor both in vitro and in vivo, which merits further validation.
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Affiliation(s)
- Yubo Wang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, PR China
| | - Yulin Liu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, PR China
| | - Yan Zhang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, PR China
| | - Zixuan Zhang
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, The University of Nottingham Ningbo China, Ningbo, 315100, PR China
| | - Lei Xu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, 300050, PR China; Department of Urology, Zibo Central Hospital, Zibo, 255036, PR China
| | - Jiefu Wang
- Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, PR China
| | - Yijie Yang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, PR China
| | - Biyu Hu
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, The University of Nottingham Ningbo China, Ningbo, 315100, PR China
| | - Yuhong Yao
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, PR China
| | - Mingming Wei
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, PR China.
| | - Junfeng Wang
- Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, PR China.
| | - Bencan Tang
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, The University of Nottingham Ningbo China, Ningbo, 315100, PR China.
| | - Kun Zhang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, PR China.
| | - Shuangwei Liu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, PR China.
| | - Guang Yang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, PR China.
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Miyazawa K, Itoh Y, Fu H, Miyazono K. Receptor-activated transcription factors and beyond: multiple modes of Smad2/3-dependent transmission of TGF-β signaling. J Biol Chem 2024; 300:107256. [PMID: 38569937 PMCID: PMC11063908 DOI: 10.1016/j.jbc.2024.107256] [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] [Received: 01/19/2024] [Revised: 02/28/2024] [Accepted: 03/05/2024] [Indexed: 04/05/2024] Open
Abstract
Transforming growth factor β (TGF-β) is a pleiotropic cytokine that is widely distributed throughout the body. Its receptor proteins, TGF-β type I and type II receptors, are also ubiquitously expressed. Therefore, the regulation of various signaling outputs in a context-dependent manner is a critical issue in this field. Smad proteins were originally identified as signal-activated transcription factors similar to signal transducer and activator of transcription proteins. Smads are activated by serine phosphorylation mediated by intrinsic receptor dual specificity kinases of the TGF-β family, indicating that Smads are receptor-restricted effector molecules downstream of ligands of the TGF-β family. Smad proteins have other functions in addition to transcriptional regulation, including post-transcriptional regulation of micro-RNA processing, pre-mRNA splicing, and m6A methylation. Recent technical advances have identified a novel landscape of Smad-dependent signal transduction, including regulation of mitochondrial function without involving regulation of gene expression. Therefore, Smad proteins are receptor-activated transcription factors and also act as intracellular signaling modulators with multiple modes of function. In this review, we discuss the role of Smad proteins as receptor-activated transcription factors and beyond. We also describe the functional differences between Smad2 and Smad3, two receptor-activated Smad proteins downstream of TGF-β, activin, myostatin, growth and differentiation factor (GDF) 11, and Nodal.
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Affiliation(s)
- Keiji Miyazawa
- Department of Biochemistry, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan.
| | - Yuka Itoh
- Department of Biochemistry, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hao Fu
- Department of Biochemistry, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kohei Miyazono
- Department of Applied Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Laboratory for Cancer Invasion and Metastasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
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3
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Richardson L, Wilcockson SG, Guglielmi L, Hill CS. Context-dependent TGFβ family signalling in cell fate regulation. Nat Rev Mol Cell Biol 2023; 24:876-894. [PMID: 37596501 DOI: 10.1038/s41580-023-00638-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2023] [Indexed: 08/20/2023]
Abstract
The transforming growth factor-β (TGFβ) family are a large group of evolutionarily conserved cytokines whose signalling modulates cell fate decision-making across varying cellular contexts at different stages of life. Here we discuss new findings in early embryos that reveal how, in contrast to our original understanding of morphogen interpretation, robust cell fate specification can originate from a noisy combination of signalling inputs and a broad range of signalling levels. We compare this evidence with novel findings on the roles of TGFβ family signalling in tissue maintenance and homeostasis during juvenile and adult life, spanning the skeletal, haemopoietic and immune systems. From these comparisons, it emerges that in contrast to robust developing systems, relatively small perturbations in TGFβ family signalling have detrimental effects at later stages in life, leading to aberrant cell fate specification and disease, for example in cancer or congenital disorders. Finally, we highlight novel strategies to target and amend dysfunction in signalling and discuss how gleaning knowledge from different fields of biology can help in the development of therapeutics for aberrant TGFβ family signalling in disease.
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Affiliation(s)
- Louise Richardson
- Developmental Signalling Laboratory, The Francis Crick Institute, London, UK
| | - Scott G Wilcockson
- Developmental Signalling Laboratory, The Francis Crick Institute, London, UK
| | - Luca Guglielmi
- Developmental Signalling Laboratory, The Francis Crick Institute, London, UK
- Division of Cell Biology, MRC Laboratory of Molecular Biology, Cambridge, UK
| | - Caroline S Hill
- Developmental Signalling Laboratory, The Francis Crick Institute, London, UK.
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4
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Krzysiek-Maczka G, Brzozowski T, Ptak-Belowska A. Helicobacter pylori-activated fibroblasts as a silent partner in gastric cancer development. Cancer Metastasis Rev 2023; 42:1219-1256. [PMID: 37460910 PMCID: PMC10713772 DOI: 10.1007/s10555-023-10122-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/20/2023] [Indexed: 12/18/2023]
Abstract
The discovery of Helicobacter pylori (Hp) infection of gastric mucosa leading to active chronic gastritis, gastroduodenal ulcers, and MALT lymphoma laid the groundwork for understanding of the general relationship between chronic infection, inflammation, and cancer. Nevertheless, this sequence of events is still far from full understanding with new players and mediators being constantly identified. Originally, the Hp virulence factors affecting mainly gastric epithelium were proposed to contribute considerably to gastric inflammation, ulceration, and cancer. Furthermore, it has been shown that Hp possesses the ability to penetrate the mucus layer and directly interact with stroma components including fibroblasts and myofibroblasts. These cells, which are the source of biophysical and biochemical signals providing the proper balance between cell proliferation and differentiation within gastric epithelial stem cell compartment, when exposed to Hp, can convert into cancer-associated fibroblast (CAF) phenotype. The crosstalk between fibroblasts and myofibroblasts with gastric epithelial cells including stem/progenitor cell niche involves several pathways mediated by non-coding RNAs, Wnt, BMP, TGF-β, and Notch signaling ligands. The current review concentrates on the consequences of Hp-induced increase in gastric fibroblast and myofibroblast number, and their activation towards CAFs with the emphasis to the altered communication between mesenchymal and epithelial cell compartment, which may lead to inflammation, epithelial stem cell overproliferation, disturbed differentiation, and gradual gastric cancer development. Thus, Hp-activated fibroblasts may constitute the target for anti-cancer treatment and, importantly, for the pharmacotherapies diminishing their activation particularly at the early stages of Hp infection.
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Affiliation(s)
- Gracjana Krzysiek-Maczka
- Department of Physiology, the Faculty of Medicine, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Kraków, Poland.
| | - Tomasz Brzozowski
- Department of Physiology, the Faculty of Medicine, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Kraków, Poland.
| | - Agata Ptak-Belowska
- Department of Physiology, the Faculty of Medicine, Jagiellonian University Medical College, 16 Grzegorzecka Street, 31-531, Kraków, Poland
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Wang W, Li F, Wang J, Liu Z, Tian M, Wang Z, Li H, Qu J, Chen Y, Hou L. Disrupting Hedgehog signaling in melanocytes by SUFU knockout leads to ocular melanocytosis and anterior segment malformation. Dis Model Mech 2023; 16:dmm050210. [PMID: 37577930 PMCID: PMC10481947 DOI: 10.1242/dmm.050210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 08/07/2023] [Indexed: 08/15/2023] Open
Abstract
Hedgehog (Hh) signaling is well known for its crucial role during development, but its specific role in individual cell lineages is less well characterized. Here, we disrupted Hh signaling specifically in melanocytes by using Cre-mediated cell-type-specific knockout of the Hh regulator suppressor of fused (Sufu). Interestingly, corresponding mice were fully pigmented and showed no developmental alterations in melanocyte numbers or distribution in skin and hair follicles. However, there were ectopic melanoblasts visible in the anterior chamber of the eye that eventually displayed severe malformation. Choroidal melanocytes remained unaltered. Surprisingly, the abnormal accumulation of anterior uveal melanoblasts was not the result of increased cell proliferation but of increased migration to ectopic locations such as the cornea. In melanoblasts in vitro, Sufu knockdown replicated the increase in cell migration without affecting proliferation and was mediated by an increased level of phosphorylated-ERK brought about by a reduction in the levels of the repressor form of GLI3. These results highlight the developmental divergence of distinct melanocyte subpopulations and may shed light on the pathogenesis of human ocular melanocytosis.
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Affiliation(s)
- Weizhuo Wang
- Laboratory of Developmental Cell Biology and Disease, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Feiyang Li
- Laboratory of Developmental Cell Biology and Disease, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Jing Wang
- Laboratory of Developmental Cell Biology and Disease, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Zuimeng Liu
- Laboratory of Developmental Cell Biology and Disease, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Meiyu Tian
- Laboratory of Developmental Cell Biology and Disease, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Zhenhang Wang
- Laboratory of Developmental Cell Biology and Disease, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Huirong Li
- Laboratory of Developmental Cell Biology and Disease, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Jia Qu
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Yu Chen
- Laboratory of Developmental Cell Biology and Disease, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Ling Hou
- Laboratory of Developmental Cell Biology and Disease, State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
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Circular RNA CREBBP modulates cartilage degradation by activating the Smad1/5 pathway through the TGFβ2/ALK1 axis. Exp Mol Med 2022; 54:1727-1740. [PMID: 36224344 PMCID: PMC9636424 DOI: 10.1038/s12276-022-00865-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 07/05/2022] [Accepted: 07/25/2022] [Indexed: 12/29/2022] Open
Abstract
Osteoarthritis, characterized by articular cartilage degradation, is the leading cause of chronic disability in older adults. Studies have indicated that circular RNAs are crucial regulators of chondrocyte development and are involved in the progression of osteoarthritis. In this study, we investigated the function and mechanism of a circular RNA and its potential for osteoarthritis therapy. The expression levels of circCREBBP, screened by circular RNA sequencing during chondrogenic differentiation in adipose tissue-derived stem cells, and TGFβ2 were significantly increased in the cartilage of patients with osteoarthritis and IL-1β-induced chondrocytes. circCREBBP knockdown increased anabolism in the extracellular matrix and inhibited chondrocyte degeneration, whereas circCREBBP overexpression led to the opposite effects. Luciferase reporter assays, rescue experiments, RNA immunoprecipitation, and RNA pulldown assays confirmed that circCREBBP upregulated TGFβ2 expression by sponging miR-1208, resulting in significantly enhanced phosphorylation of Smad1/5 in chondrocytes. Moreover, intra-articular injection of adeno-associated virus-sh-circCrebbp alleviated osteoarthritis in a mouse model of destabilization of the medial meniscus. Our findings reveal a critical role for circCREBBP in the progression of osteoarthritis and provide a potential target for osteoarthritis therapy.
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Shonibare Z, Monavarian M, O’Connell K, Altomare D, Shelton A, Mehta S, Jaskula-Sztul R, Phaeton R, Starr MD, Whitaker R, Berchuck A, Nixon AB, Arend RC, Lee NY, Miller CR, Hempel N, Mythreye K. Reciprocal SOX2 regulation by SMAD1-SMAD3 is critical for anoikis resistance and metastasis in cancer. Cell Rep 2022; 40:111066. [PMID: 35905726 PMCID: PMC9899501 DOI: 10.1016/j.celrep.2022.111066] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 05/05/2022] [Accepted: 06/16/2022] [Indexed: 02/07/2023] Open
Abstract
Growth factors in tumor environments are regulators of cell survival and metastasis. Here, we reveal the dichotomy between TGF-β superfamily growth factors BMP and TGF-β/activin and their downstream SMAD effectors. Gene expression profiling uncovers SOX2 as a key contextual signaling node regulated in an opposing manner by BMP2, -4, and -9 and TGF-β and activin A to impact anchorage-independent cell survival. We find that SOX2 is repressed by BMPs, leading to a reduction in intraperitoneal tumor burden and improved survival of tumor-bearing mice. Repression of SOX2 is driven by SMAD1-dependent histone H3K27me3 recruitment and DNA methylation at SOX2's promoter. Conversely, TGF-β, which is elevated in patient ascites, and activin A can promote SOX2 expression and anchorage-independent survival by SMAD3-dependent histone H3K4me3 recruitment. Our findings identify SOX2 as a contextual and contrastingly regulated node downstream of TGF-β members controlling anchorage-independent survival and metastasis in ovarian cancers.
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Affiliation(s)
- Zainab Shonibare
- Department of Pathology, O’Neal Comprehensive Cancer Center, University of Alabama School of Medicine, Birmingham, AL, USA,Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Mehri Monavarian
- Department of Pathology, O’Neal Comprehensive Cancer Center, University of Alabama School of Medicine, Birmingham, AL, USA
| | - Kathleen O’Connell
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Diego Altomare
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC 29208, USA
| | - Abigail Shelton
- Department of Pathology, O’Neal Comprehensive Cancer Center, Comprehensive Neuroscience Center, University of Alabama School of Medicine, Birmingham, AL, USA
| | - Shubham Mehta
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Renata Jaskula-Sztul
- Department of Surgery, University of Alabama School of Medicine, Birmingham, AL, USA
| | - Rebecca Phaeton
- Department of Obstetrics and Gynecology, and Microbiology and Immunology, College of Medicine, Pennsylvania State University, Hershey, PA, USA
| | - Mark D. Starr
- Department of Medicine and Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Regina Whitaker
- Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, USA
| | - Andrew Berchuck
- Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, USA
| | - Andrew B. Nixon
- Department of Medicine and Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Rebecca C. Arend
- Department of Gynecology Oncology, University of Alabama School of Medicine, Birmingham, AL, USA
| | - Nam Y. Lee
- Department of Chemistry and Biochemistry, Department of Pharmacology, University of Arizona, Tucson, AZ 85721, USA
| | - C. Ryan Miller
- Department of Pathology, O’Neal Comprehensive Cancer Center, Comprehensive Neuroscience Center, University of Alabama School of Medicine, Birmingham, AL, USA
| | - Nadine Hempel
- Department of Pharmacology, and Obstetrics and Gynecology, College of Medicine, Pennsylvania State University, Hershey, PA, USA; Department of Medicine, Division of Hematology Oncology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15213, USA.
| | - Karthikeyan Mythreye
- Department of Pathology, O'Neal Comprehensive Cancer Center, University of Alabama School of Medicine, Birmingham, AL, USA; Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA.
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Fu G, Huang J, Wu Z, Zhao L. Sevoflurane Suppresses the Growth, Metastasis, and Invasion of Endometrial Carcinoma Cells via miR-195-5p/JAK2 Axis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:2398101. [PMID: 35242202 PMCID: PMC8888040 DOI: 10.1155/2022/2398101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/11/2021] [Accepted: 12/22/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND Highly invasive and destructive endometrioma is one of the most familiar primary malignant tumors among women. It has been studied that sevoflurane can influence the development of various malignancies. But whatever sevoflurane could influence endometrial tumors is unknown. MATERIALS AND METHODS Through CCK8 and transwell analysis, we investigated the influence of sevoflurane on the development of endometrial tumors in vitro. Then, we studied the function of miRNA-195-5p to promote sevoflurane to inhibit the development of endometrial tumors. Then, we predicted the target genes of miRNA-195-5p by online software and focused on JAK2. Through luciferase assay, we proved the direct binding and regulation of miRNA-195-5p to JAK2. RESULTS We showed that sevoflurane could inhibit the growth, metastasis, and invasion of endometrial tumors via miRNA-195-5p/JAK2 axis. CONCLUSIONS Our research shows the function of sevoflurane in inhibiting the development of endometrial tumors via miRNA-195-5p/JAK2 axis. Our findings proved that sevoflurane is potentially beneficial for endometrial carcinoma patients with surgery and may be helpful for the choice of anesthetics in endometrial carcinoma operations.
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Affiliation(s)
- Guowei Fu
- The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou 213003, China
| | - Junlan Huang
- Changzhou Wujin Hospital of Traditional Chinese Medicine, Changzhou 213161, China
| | - Zhouquan Wu
- The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou 213003, China
| | - Lin Zhao
- The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou 213003, China
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Colorectal cancer-associated fibroblasts promote metastasis by up-regulating LRG1 through stromal IL-6/STAT3 signaling. Cell Death Dis 2021; 13:16. [PMID: 34930899 PMCID: PMC8688517 DOI: 10.1038/s41419-021-04461-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 11/20/2021] [Accepted: 11/30/2021] [Indexed: 12/20/2022]
Abstract
Cancer-associated fibroblasts (CAFs) have been shown to play a strong role in colorectal cancer metastasis, yet the underlying mechanism remains to be fully elucidated. Using CRC clinical samples together with ex vivo CAFs-CRC co-culture models, we found that CAFs induce expression of Leucine Rich Alpha-2-Glycoprotein 1(LRG1) in CRC, where it shows markedly higher expression in metastatic CRC tissues compared to primary tumors. We further show that CAFs-induced LRG1 promotes CRC migration and invasion that is concomitant with EMT (epithelial-mesenchymal transition) induction. In addition, this signaling axis has also been confirmed in the liver metastatic mouse model which displayed CAFs-induced LRG1 substantially accelerates metastasis. Mechanistically, we demonstrate that CAFs-secreted IL-6 (interleukin-6) is responsible for LRG1 up-regulation in CRC, which occurs through a direct transactivation by STAT3 following JAK2 activation. In clinical CRC tumor samples, LRG1 expression was positively correlated with CAFs-specific marker, α-SMA, and a higher LRG1 expression predicted poor clinical outcomes especially distant metastasis free survival, supporting the role of LRG1 in CRC progression. Collectively, this study provided a novel insight into CAFs-mediated metastasis in CRC and indicated that therapeutic targeting of CAFs-mediated IL-6-STAT3-LRG1 axis might be a potential strategy to mitigate metastasis in CRC.
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Abstract
Transforming growth factor-beta2 (TGF-β2) is recognized as a versatile cytokine that plays a vital role in regulation of joint development, homeostasis, and diseases, but its role as a biological mechanism is understood far less than that of its counterpart, TGF-β1. Cartilage as a load-resisting structure in vertebrates however displays a fragile performance when any tissue disturbance occurs, due to its lack of blood vessels, nerves, and lymphatics. Recent reports have indicated that TGF-β2 is involved in the physiological processes of chondrocytes such as proliferation, differentiation, migration, and apoptosis, and the pathological progress of cartilage such as osteoarthritis (OA) and rheumatoid arthritis (RA). TGF-β2 also shows its potent capacity in the repair of cartilage defects by recruiting autologous mesenchymal stem cells and promoting secretion of other growth factor clusters. In addition, some pioneering studies have already considered it as a potential target in the treatment of OA and RA. This article aims to summarize the current progress of TGF-β2 in cartilage development and diseases, which might provide new cues for remodelling of cartilage defect and intervention of cartilage diseases.
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Affiliation(s)
- Mengmeng Duan
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qingxuan Wang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yang Liu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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11
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Aashaq S, Batool A, Mir SA, Beigh MA, Andrabi KI, Shah ZA. TGF-β signaling: A recap of SMAD-independent and SMAD-dependent pathways. J Cell Physiol 2021; 237:59-85. [PMID: 34286853 DOI: 10.1002/jcp.30529] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/06/2021] [Accepted: 07/06/2021] [Indexed: 12/20/2022]
Abstract
Transforming growth factor-β (TGF-β) is a proinflammatory cytokine known to control a diverse array of pathological and physiological conditions during normal development and tumorigenesis. TGF-β-mediated physiological effects are heterogeneous and vary among different types of cells and environmental conditions. TGF-β serves as an antiproliferative agent and inhibits tumor development during primary stages of tumor progression; however, during the later stages, it encourages tumor development and mediates metastatic progression and chemoresistance. The fundamental elements of TGF-β signaling have been divulged more than a decade ago; however, the process by which the signals are relayed from cell surface to nucleus is very complex with additional layers added in tumor cell niches. Although the intricate understanding of TGF-β-mediated signaling pathways and their regulation are still evolving, we tried to make an attempt to summarize the TGF-β-mediated SMAD-dependent andSMAD-independent pathways. This manuscript emphasizes the functions of TGF-β as a metastatic promoter and tumor suppressor during the later and initial phases of tumor progression respectively.
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Affiliation(s)
- Sabreena Aashaq
- Department of Immunology and Molecular Medicine, Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, JK, India
| | - Asiya Batool
- Division of Cancer Pharmacology, Indian Institute of Integrative Medicine, Srinagar, JK, India
| | | | | | | | - Zaffar Amin Shah
- Department of Immunology and Molecular Medicine, Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, JK, India
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12
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Ramachandran A, Mehić M, Wasim L, Malinova D, Gori I, Blaszczyk BK, Carvalho DM, Shore EM, Jones C, Hyvönen M, Tolar P, Hill CS. Pathogenic ACVR1 R206H activation by Activin A-induced receptor clustering and autophosphorylation. EMBO J 2021; 40:e106317. [PMID: 34003511 PMCID: PMC8280795 DOI: 10.15252/embj.2020106317] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 11/23/2022] Open
Abstract
Fibrodysplasia ossificans progressiva (FOP) and diffuse intrinsic pontine glioma (DIPG) are debilitating diseases that share causal mutations in ACVR1, a TGF-β family type I receptor. ACVR1R206H is a frequent mutation in both diseases. Pathogenic signaling via the SMAD1/5 pathway is mediated by Activin A, but how the mutation triggers aberrant signaling is not known. We show that ACVR1 is essential for Activin A-mediated SMAD1/5 phosphorylation and is activated by two distinct mechanisms. Wild-type ACVR1 is activated by the Activin type I receptors, ACVR1B/C. In contrast, ACVR1R206H activation does not require upstream kinases, but is predominantly activated via Activin A-dependent receptor clustering, which induces its auto-activation. We use optogenetics and live-imaging approaches to demonstrate Activin A-induced receptor clustering and show it requires the type II receptors ACVR2A/B. Our data provide molecular mechanistic insight into the pathogenesis of FOP and DIPG by linking the causal activating genetic mutation to disrupted signaling.
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Affiliation(s)
- Anassuya Ramachandran
- Developmental Signalling LaboratoryThe Francis Crick InstituteLondonUK
- Present address:
Department of Molecular Medicine and PathologyUniversity of AucklandAucklandNew Zealand
| | - Merima Mehić
- Developmental Signalling LaboratoryThe Francis Crick InstituteLondonUK
| | - Laabiah Wasim
- Immune Receptor Activation LaboratoryThe Francis Crick InstituteLondonUK
| | | | - Ilaria Gori
- Developmental Signalling LaboratoryThe Francis Crick InstituteLondonUK
| | | | - Diana M Carvalho
- Division of Molecular PathologyThe Institute of Cancer ResearchSuttonUK
| | - Eileen M Shore
- Departments of Orthopaedic Surgery and GeneticsPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Chris Jones
- Division of Molecular PathologyThe Institute of Cancer ResearchSuttonUK
| | - Marko Hyvönen
- Department of BiochemistryUniversity of CambridgeCambridgeUK
| | - Pavel Tolar
- Immune Receptor Activation LaboratoryThe Francis Crick InstituteLondonUK
- Present address:
Division of Infection and ImmunityInstitute of Immunity and TransplantationUniversity CollegeLondonUK
| | - Caroline S Hill
- Developmental Signalling LaboratoryThe Francis Crick InstituteLondonUK
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13
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Chappell K, Manna K, Washam CL, Graw S, Alkam D, Thompson MD, Zafar MK, Hazeslip L, Randolph C, Gies A, Bird JT, Byrd AK, Miah S, Byrum SD. Multi-omics data integration reveals correlated regulatory features of triple negative breast cancer. Mol Omics 2021; 17:677-691. [PMID: 34142686 PMCID: PMC8504614 DOI: 10.1039/d1mo00117e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Triple negative breast cancer (TNBC) is an aggressive type of breast cancer with very little treatment options. TNBC is very heterogeneous with large alterations in the genomic, transcriptomic, and proteomic landscapes leading to various subtypes with differing responses to therapeutic treatments. We applied a multi-omics data integration method to evaluate the correlation of important regulatory features in TNBC BRCA1 wild-type MDA-MB-231 and TNBC BRCA1 5382insC mutated HCC1937 cells compared with non-tumorigenic epithelial breast MCF10A cells. The data includes DNA methylation, RNAseq, protein, phosphoproteomics, and histone post-translational modification. Data integration methods identified regulatory features from each omics method that had greater than 80% positive correlation within each TNBC subtype. Key regulatory features at each omics level were identified distinguishing the three cell lines and were involved in important cancer related pathways such as TGFβ signaling, PI3K/AKT/mTOR, and Wnt/beta-catenin signaling. We observed overexpression of PTEN, which antagonizes the PI3K/AKT/mTOR pathway, and MYC, which downregulates the same pathway in the HCC1937 cells relative to the MDA-MB-231 cells. The PI3K/AKT/mTOR and Wnt/beta-catenin pathways are both downregulated in HCC1937 cells relative to MDA-MB-231 cells, which likely explains the divergent sensitivities of these cell lines to inhibitors of downstream signaling pathways. The DNA methylation and RNAseq data is freely available via GEO GSE171958 and the proteomics data is available via the ProteomeXchange PXD025238.
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Affiliation(s)
- Kevin Chappell
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA.
| | - Kanishka Manna
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA.
| | - Charity L Washam
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA. and Arkansas Children's Research Institute, 13 Children's Way, Little Rock, AR 72202, USA
| | - Stefan Graw
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA. and Arkansas Children's Research Institute, 13 Children's Way, Little Rock, AR 72202, USA and Emory University, Atlanta, GA, USA
| | - Duah Alkam
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA.
| | - Matthew D Thompson
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA.
| | - Maroof Khan Zafar
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA.
| | - Lindsey Hazeslip
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA.
| | - Christopher Randolph
- Arkansas Children's Research Institute, 13 Children's Way, Little Rock, AR 72202, USA
| | - Allen Gies
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA.
| | - Jordan T Bird
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA.
| | - Alicia K Byrd
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA. and Winthrop P. Rockefeller Cancer Institute, 449 Jack Stephens Dr, Little Rock, AR 72205, USA
| | - Sayem Miah
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA. and Winthrop P. Rockefeller Cancer Institute, 449 Jack Stephens Dr, Little Rock, AR 72205, USA
| | - Stephanie D Byrum
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 4301 West Markham Street (slot 516), Little Rock, AR 72205-7199, USA. and Arkansas Children's Research Institute, 13 Children's Way, Little Rock, AR 72202, USA and Winthrop P. Rockefeller Cancer Institute, 449 Jack Stephens Dr, Little Rock, AR 72205, USA
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14
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Mahdloo T, Sahami P, Ramezani R, Jafarinia M, Goudarzi H, Babashah S. Up-regulation of miR-155 potentiates CD34+ CML stem/progenitor cells to escape from the growth-inhibitory effects of TGF-ß1 and BMP signaling. EXCLI JOURNAL 2021; 20:748-763. [PMID: 33907541 PMCID: PMC8073837 DOI: 10.17179/excli2021-3404] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 04/08/2021] [Indexed: 12/12/2022]
Abstract
microRNAs (miRNAs or miRs) play key roles in different stages of chronic myeloid leukemia (CML) pathogenesis. The present study aimed to demonstrate whether miR-155 enables CD34+ CML cells to escape from the growth-inhibitory effects of TGF-β1 and bone morphogenetic protein (BMP) signaling. Among differentially expressed miRNAs in CD34+ CML cells, miR-155 was highly up-regulated. QRT-PCR revealed an inverse correlation between miR-155 and two key members of the TGF-β pathway-TGF-βR2 and SMAD5. Results showed that SMAD5 is not only up-regulated through BMPs treatment, but recombinant TGF-β1 can also induce SMAD5 in CML cells. We also demonstrated that TGF-β1-mediated phosphorylation of SMAD1/5 was abolished by pre-treatment with the blocking TGF-βR2 antibody, suggesting a possible involvement of TGF-βR2. Additionally, overexpression of miR-155 significantly promoted the proliferation rate of CD34+ CML cells. Results showed that siRNA-mediated knockdown of SMAD5 had a promoting effect on CD34+ CML cell proliferation, suggesting that SMAD5 knock-down recapitulates the proliferative effects of miR-155. Importantly, TGF-β1 and BMP2/4 treatment had inhibitory effects on cell proliferation; however, miR-155 overexpression enabled CD34+ CML cells to evade the anti-proliferative effects of TGF-β1 and BMPs. Consistently, down-regulation of miR-155 augmented the promoting effects of TGF-β1 and BMP signaling on inducing apoptosis in CD34+ CML stem cells. Our findings demonstrated that targeting of SMAD5 and TGF-βR2 links miR-155 to TGF-β signaling in CML. Overexpression of miR-155 enables CD34+ CML cells to evade growth-inhibitory effects of the TGF-β1 and BMP signaling, providing new perspectives for miR-155 as a therapeutic target for CML.
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Affiliation(s)
- Touba Mahdloo
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Marvdasht, Iran
| | - Pantea Sahami
- Department of Biomedical Sciences, Women Research Center, University of Alzahra, Tehran, Iran
| | - Reihaneh Ramezani
- Department of Biomedical Sciences, Women Research Center, University of Alzahra, Tehran, Iran
| | - Mojtaba Jafarinia
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Marvdasht, Iran
| | - Hamedreza Goudarzi
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Marvdasht, Iran
| | - Sadegh Babashah
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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15
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Kumari A, Shonibare Z, Monavarian M, Arend RC, Lee NY, Inman GJ, Mythreye K. TGFβ signaling networks in ovarian cancer progression and plasticity. Clin Exp Metastasis 2021; 38:139-161. [PMID: 33590419 PMCID: PMC7987693 DOI: 10.1007/s10585-021-10077-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 02/03/2021] [Indexed: 02/06/2023]
Abstract
Epithelial ovarian cancer (EOC) is a leading cause of cancer-related death in women. Late-stage diagnosis with significant tumor burden, accompanied by recurrence and chemotherapy resistance, contributes to this poor prognosis. These morbidities are known to be tied to events associated with epithelial-mesenchymal transition (EMT) in cancer. During EMT, localized tumor cells alter their polarity, cell-cell junctions, cell-matrix interactions, acquire motility and invasiveness and an exaggerated potential for metastatic spread. Key triggers for EMT include the Transforming Growth Factor-β (TGFβ) family of growth factors which are actively produced by a wide array of cell types within a specific tumor and metastatic environment. Although TGFβ can act as either a tumor suppressor or promoter in cancer, TGFβ exhibits its pro-tumorigenic functions at least in part via EMT. TGFβ regulates EMT both at the transcriptional and post-transcriptional levels as outlined here. Despite recent advances in TGFβ based therapeutics, limited progress has been seen for ovarian cancers that are in much need of new therapeutic strategies. Here, we summarize and discuss several recent insights into the underlying signaling mechanisms of the TGFβ isoforms in EMT in the unique metastatic environment of EOCs and the current therapeutic interventions that may be relevant.
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Affiliation(s)
- Asha Kumari
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, WTI 320B, 1824 Sixth Avenue South, Birmingham, AL, 35294, USA
| | - Zainab Shonibare
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, WTI 320B, 1824 Sixth Avenue South, Birmingham, AL, 35294, USA
| | - Mehri Monavarian
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, WTI 320B, 1824 Sixth Avenue South, Birmingham, AL, 35294, USA
| | - Rebecca C Arend
- Department of Obstetrics and Gynecology-Gynecologic Oncology, University of Alabama at Birmingham, Birmingham, AL, 35233, USA
| | - Nam Y Lee
- Division of Pharmacology, Chemistry and Biochemistry, College of Medicine, University of Arizona, Tucson, AZ, 85721, USA
| | - Gareth J Inman
- Cancer Research UK Beatson Institute and Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Karthikeyan Mythreye
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, WTI 320B, 1824 Sixth Avenue South, Birmingham, AL, 35294, USA.
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16
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Nakajima T, Kunieda Y, Takahashi Y, Tanaka Y, Kondo T, Takenaka S. Changes in Smad1/5/9 expression and phosphorylation in astrocytes of the rat hippocampus after transient global cerebral ischemia. J Chem Neuroanat 2021; 113:101941. [PMID: 33711423 DOI: 10.1016/j.jchemneu.2021.101941] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/27/2021] [Accepted: 03/01/2021] [Indexed: 01/15/2023]
Abstract
Smad proteins are known to transduce the actions of the transforming growth factor-β (TGF-β) family including TGF-βs, activins, and bone morphogenetic proteins (BMPs). We previously reported that Smad1/5/9 immunoreactivity was observed in astrocytes of various rat brain regions including the hippocampus, suggesting that Smad1/5/9 may be associated with the physiology of astrocytes. However, the Smad1/5/9 expression and activation in the hippocampal astrocytes after global cerebral ischemia has not been yet elucidated. In this study, we examined temporal changes in the expression and phosphorylation of Smad1/5/9 in the hippocampus using a rat model of global cerebral ischemia. Furthermore, we examined the candidate ligand involved in the phosphorylation of Smad1/5/9 in the hippocampus after ischemia. Pyramidal neuronal cell death in the CA1 regions was visible at 3 days, and maximum death occurred within 7 days after ischemia. At 7 days after ischemia, astrocytes that showed strong immunoreactivity for Smad1/5/9 were frequently observed in the CA1 region. Additionally, there was an increase in phosphorylated Smad1/5/9 (phospho-Smad1/5/9) -immunopositive astrocytes in the CA1 region 7 days after ischemia. Real-time PCR analysis showed an increase in the expression level of TGF-β1 mRNA in the hippocampus after ischemia. Intracerebroventricular injection of SB525334, an inhibitor of TGF-β/Smad signaling, reduced immunoreactivity for phospho-Smad1/5/9 in astrocytes. These results suggest that TGF-β1 may be a key molecule for ischemia-induced Smad1/5/9 phosphorylation in astrocytes, and TGF-β1-Smad1/5/9 signaling may play a role in post-ischemic events, including brain inflammation or tissue repair rather than neuroprotection of the hippocampus.
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Affiliation(s)
- Takayuki Nakajima
- Department of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ohraikita, Izumisano, Osaka, 598-8531, Japan.
| | - Yuji Kunieda
- Department of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ohraikita, Izumisano, Osaka, 598-8531, Japan
| | - Yusuke Takahashi
- Department of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ohraikita, Izumisano, Osaka, 598-8531, Japan
| | - Yuki Tanaka
- Department of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ohraikita, Izumisano, Osaka, 598-8531, Japan
| | - Tomohiro Kondo
- Department of Integrated Structural Biosciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ohraikita, Izumisano, Osaka, 598-8531, Japan
| | - Shigeo Takenaka
- Department of Clinical Nutrition, Graduate School of Comprehensive Rehabilitation, Osaka Prefecture University, 7-30 Habikino, Osaka, 583-8555, Japan
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17
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Kumar S, Umair Z, Kumar V, Kumar S, Lee U, Kim J. Foxd4l1.1 negatively regulates transcription of neural repressor ventx1.1 during neuroectoderm formation in Xenopus embryos. Sci Rep 2020; 10:16780. [PMID: 33033315 PMCID: PMC7545198 DOI: 10.1038/s41598-020-73662-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 09/16/2020] [Indexed: 11/09/2022] Open
Abstract
Neuroectoderm formation is the first step in development of a proper nervous system for vertebrates. The developmental decision to form a non-neural ectoderm versus a neural one involves the regulation of BMP signaling, first reported many decades ago. However, the precise regulatory mechanism by which this is accomplished has not been fully elucidated, particularly for transcriptional regulation of certain key transcription factors. BMP4 inhibition is a required step in eliciting neuroectoderm from ectoderm and Foxd4l1.1 is one of the earliest neural genes highly expressed in the neuroectoderm and conserved across vertebrates, including humans. In this work, we focused on how Foxd4l1.1 downregulates the neural repressive pathway. Foxd4l1.1 inhibited BMP4/Smad1 signaling and triggered neuroectoderm formation in animal cap explants of Xenopus embryos. Foxd4l1.1 directly bound within the promoter of endogenous neural repressor ventx1.1 and inhibited ventx1.1 transcription. Foxd4l1.1 also physically interacted with Xbra in the nucleus and inhibited Xbra-induced ventx1.1 transcription. In addition, Foxd4l1.1 also reduced nuclear localization of Smad1 to inhibit Smad1-mediated ventx1.1 transcription. Foxd4l1.1 reduced the direct binding of Xbra and Smad1 on ventx1.1 promoter regions to block Xbra/Smad1-induced synergistic activation of ventx1.1 transcription. Collectively, Foxd4l1.1 negatively regulates transcription of a neural repressor ventx1.1 by multiple mechanisms in its exclusively occupied territory of neuroectoderm, and thus leading to primary neurogenesis. In conjunction with the results of our previous findings that ventx1.1 directly represses foxd4l1.1, the reciprocal repression of ventx1.1 and foxd4l1.1 is significant in at least in part specifying the mechanism for the non-neural versus neural ectoderm fate determination in Xenopus embryos.
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Affiliation(s)
- Shiv Kumar
- Department of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, Gangwon-Do, Chuncheon, 24252, Republic of Korea
| | - Zobia Umair
- Department of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, Gangwon-Do, Chuncheon, 24252, Republic of Korea
| | - Vijay Kumar
- Department of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, Gangwon-Do, Chuncheon, 24252, Republic of Korea
| | - Santosh Kumar
- Department of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, Gangwon-Do, Chuncheon, 24252, Republic of Korea
| | - Unjoo Lee
- Department of Electrical Engineering, Hallym University, Gangwon-Do, Chuncheon, 24252, Republic of Korea.
| | - Jaebong Kim
- Department of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, Gangwon-Do, Chuncheon, 24252, Republic of Korea.
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18
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Gurrapu S, Franzolin G, Fard D, Accardo M, Medico E, Sarotto I, Sapino A, Isella C, Tamagnone L. Reverse signaling by semaphorin 4C elicits SMAD1/5- and ID1/3-dependent invasive reprogramming in cancer cells. Sci Signal 2019; 12:12/595/eaav2041. [DOI: 10.1126/scisignal.aav2041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Semaphorins are a family of molecular signals that guide cell migration and are implicated in the regulation of cancer cells. In particular, transmembrane semaphorins are postulated to act as both ligands (“forward” mode) and signaling receptors (“reverse” mode); however, reverse semaphorin signaling in cancer is relatively less understood. Here, we identified a previously unknown function of transmembrane semaphorin 4C (Sema4C), acting in reverse mode, to elicit nonconventional TGF-β/BMP receptor activation and selective SMAD1/5 phosphorylation. Sema4C coimmunoprecipitated with TGFBRII and BMPR1, supporting its role as modifier of this pathway. Sema4C reverse signaling led to the increased abundance of ID1/3 transcriptional factors and to extensive reprogramming of gene expression, which suppressed the typical features of the epithelial-mesenchymal transition in invasive carcinoma cells. This phenotype was nevertheless coupled with burgeoning metastatic behavior in vivo, consistent with evidence that Sema4C expression correlates with metastatic progression in human breast cancers. Thus, Sema4C reverse signaling promoted SMAD1/5- and ID1/3-dependent gene expression reprogramming and phenotypic plasticity in invasive cancer cells.
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19
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Duan D, Derynck R. Transforming growth factor-β (TGF-β)-induced up-regulation of TGF-β receptors at the cell surface amplifies the TGF-β response. J Biol Chem 2019; 294:8490-8504. [PMID: 30948511 DOI: 10.1074/jbc.ra118.005763] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 03/28/2019] [Indexed: 12/24/2022] Open
Abstract
Functional activation of the transforming growth factor-β (TGF-β) receptors (TGFBRs) is carefully regulated through integration of post-translational modifications, spatial regulation at the cellular level, and TGFBR availability at the cell surface. Although the bulk of TGFBRs resides inside the cells, AKT Ser/Thr kinase (AKT) activation in response to insulin or other growth factors rapidly induces transport of TGFBRs to the cell surface, thereby increasing the cell's responsiveness to TGF-β. We now demonstrate that TGF-β itself induces a rapid translocation of its own receptors to the cell surface and thus amplifies its own response. This mechanism of response amplification, which hitherto has not been reported for other cell-surface receptors, depended on AKT activation and TGF-β type I receptor kinase. In addition to an increase in cell-surface TGFBR levels, TGF-β treatment promoted TGFBR internalization, suggesting an overall amplification of TGFBR cycling. The TGF-β-induced increase in receptor presentation at the cell surface amplified TGF-β-induced SMAD family member (SMAD) activation and gene expression. Furthermore, bone morphogenetic protein 4 (BMP-4), which also induces AKT activation, increased TGFBR levels at the cell surface, leading to enhanced autocrine activation of TGF-β-responsive SMADs and gene expression, providing context for the activation of TGF-β signaling in response to BMP during development. In summary, our results indicate that TGF-β- and BMP-induced activation of low levels of cell surface-associated TGFBRs rapidly mobilizes additional TGFBRs from intracellular stores to the cell surface, increasing the abundance of cell-surface TGFBRs and cells' responsiveness to TGF-β signaling.
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Affiliation(s)
- Dana Duan
- Department of Cell and Tissue Biology, University of California at San Francisco, San Francisco, California 94143; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California at San Francisco, San Francisco, California 94143
| | - Rik Derynck
- Department of Cell and Tissue Biology, University of California at San Francisco, San Francisco, California 94143; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California at San Francisco, San Francisco, California 94143; Anatomy, University of California at San Francisco, San Francisco, California 94143.
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20
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Abstract
Breast cancer is the most prevalent type of cancer amongst women worldwide. The mortality rate for patients with early-stage breast cancer has been decreasing, however, the 5-year survival rate for patients with metastatic disease remains poor, currently at 27%. Here, we have reviewed the current understanding of the role of bone morphogenetic protein (BMP) signaling in breast cancer progression, and have highlighted the discordant results that are reported in different studies. We propose that some of these contradictory outcomes may result from signaling through either the canonical or non-canonical pathways in different cell lines and tumors, or from different tumor-stromal interactions that occur in vivo.
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Affiliation(s)
- Lap Hing Chi
- a Metastasis Research Laboratory, Olivia Newton-John Cancer Research Institute , Heidelberg , Australia
- b School of Cancer Medicine, La Trobe University , Bundoora , Australia
| | - Allan D Burrows
- a Metastasis Research Laboratory, Olivia Newton-John Cancer Research Institute , Heidelberg , Australia
- b School of Cancer Medicine, La Trobe University , Bundoora , Australia
| | - Robin L Anderson
- a Metastasis Research Laboratory, Olivia Newton-John Cancer Research Institute , Heidelberg , Australia
- b School of Cancer Medicine, La Trobe University , Bundoora , Australia
- c Department of Clinical Pathology, The University of Melbourne , Parkville , VIC , Australia
- d Sir Peter MacCallum Department of Oncology, The University of Melbourne , Parkville , Australia
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21
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Di L, Liu LJ, Yan YM, Fu R, Li Y, Xu Y, Cheng YX, Wu ZQ. Discovery of a natural small-molecule compound that suppresses tumor EMT, stemness and metastasis by inhibiting TGFβ/BMP signaling in triple-negative breast cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:134. [PMID: 30898152 PMCID: PMC6429712 DOI: 10.1186/s13046-019-1130-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/06/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND The transforming growth factor β (TGFβ) and bone morphogenetic protein (BMP) signaling pathways are both constitutively activated in triple-negative breast cancer (TNBC). We are interested in isolating the naturally-derived small-molecule inhibitor that could simultaneously targeting TGFβ/BMP pathways and further studying its anti-proliferative/-metastatic effects as well as the underlying mechanisms in multiple tumor models. METHODS Multiple in vitro cell-based assays are used to examine the compound's inhibitory efficacy on TNBC cell growth, stemness, epithelial-mesenchymal transition (EMT), invasion and migration by targeting TGFβ/BMP signaling pathways. Transgenic breast cancer mouse model (MMTV-PyMT), subcutaneous xenograft and bone metastasis models are used to examine ZL170's effects on TNBC growth and metastasis potentials in vivo. RESULTS ZL170 dose-dependently inhibits cell proliferation, EMT, stemness, invasion and migration in vitro via specifically targeting canonical TGFβ/BMP-SMADs pathways in TNBC cells. The compound significantly hinders osteolytic bone metastasis and xenograft tumor growth without inflicting toxicity on vital organs of tumor-bearing nude mice. ZL170 strongly inhibits primary tumor growth and lung metastases in MMTV-PyMT transgenic mice. ZL170-treated tumors exhibit impaired TGFβ/BMP signaling pathways in both epithelial and stromal compartments, thereby creating a suppressive tumor microenvironment characterized by reduced extracellular matrix deposition and decreased infiltration of stromal cells. CONCLUSIONS ZL170 inhibits tumor EMT, stemness and metastasis and could be further developed as a potent anti-metastatic agent used in combination with cytotoxic drugs for treatment of TNBC and other advanced metastatic cancers.
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Affiliation(s)
- Lei Di
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Collaborative Innovation Center for Gannan Oil-Tea Camellia Industrial Development, Gannan Medical University, Ganzhou, China
| | - Li-Juan Liu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Collaborative Innovation Center for Gannan Oil-Tea Camellia Industrial Development, Gannan Medical University, Ganzhou, China
| | - Yong-Ming Yan
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, School of Pharmaceutical Sciences, Shenzhen University Health Science Center, 3688 Nanhai Ave, Shenzhen, 518060, China
| | - Rong Fu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Collaborative Innovation Center for Gannan Oil-Tea Camellia Industrial Development, Gannan Medical University, Ganzhou, China
| | - Yi Li
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Collaborative Innovation Center for Gannan Oil-Tea Camellia Industrial Development, Gannan Medical University, Ganzhou, China
| | - Ying Xu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Collaborative Innovation Center for Gannan Oil-Tea Camellia Industrial Development, Gannan Medical University, Ganzhou, China
| | - Yong-Xian Cheng
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, School of Pharmaceutical Sciences, Shenzhen University Health Science Center, 3688 Nanhai Ave, Shenzhen, 518060, China.
| | - Zhao-Qiu Wu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Collaborative Innovation Center for Gannan Oil-Tea Camellia Industrial Development, Gannan Medical University, Ganzhou, China.
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Escrich R, Costa I, Moreno M, Cubedo M, Vela E, Escrich E, Moral R. A high-corn-oil diet strongly stimulates mammary carcinogenesis, while a high-extra-virgin-olive-oil diet has a weak effect, through changes in metabolism, immune system function and proliferation/apoptosis pathways. J Nutr Biochem 2019; 64:218-227. [DOI: 10.1016/j.jnutbio.2018.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 10/24/2018] [Accepted: 11/09/2018] [Indexed: 02/07/2023]
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Depletion of MOB1A/B causes intestinal epithelial degeneration by suppressing Wnt activity and activating BMP/TGF-β signaling. Cell Death Dis 2018; 9:1083. [PMID: 30349003 PMCID: PMC6197243 DOI: 10.1038/s41419-018-1138-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 09/21/2018] [Accepted: 09/24/2018] [Indexed: 12/19/2022]
Abstract
The Hippo pathway is involved in intestinal epithelial homeostasis with Wnt, BMP, Notch, and EGF signaling. We investigated the relationship between Hippo and other signaling pathways and the role of MOB kinase activator 1A/1B (MOB1A/B) in intestinal homeostasis. Mice with intestinal epithelial cell (IEC)-specific depletion of MOB1A/B showed hyperproliferation in IECs, defects in secretory lineage differentiation and loss of intestinal stem cells and eventually died at 10–12 days after tamoxifen treatment. In MOB1A/B-depleted IECs, expression of Wnt target genes were downregulated but Bmp2 and Tgfbr2 were transcriptionally activated with enhanced YAP activity. In in vivo and in vitro experiments with several signaling inhibitors, it has been shown that the BMP inhibitor LDN193189 or TGF-β inhibitor SB431542 had effects on partial restoration of the intestinal degenerative phenotype. Treatment with these inhibitors restored differentiation of secretory lineage cells in MOB1A/B-deficient mice, but not ISC pools in the crypt region. These studies reveal that IEC-specific depletion of MOB1A/B induced overexpression of Bmp2 and Tgfbr2 and inhibited Wnt activity, finally leading to loss of ISCs and functional epithelia in the mouse intestine. These results suggest that MOB1A/B has an essential function for intestinal epithelial homeostasis by regulating YAP, Wnt activity, and BMP/TGF-β signaling.
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TGF-β and BMP signals regulate insect diapause through Smad1-POU-TFAM pathway. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1865:1239-1249. [DOI: 10.1016/j.bbamcr.2018.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 06/02/2018] [Accepted: 06/08/2018] [Indexed: 01/04/2023]
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Morrison CD, Allington TM, Thompson CL, Gilmore HL, Chang JC, Keri RA, Schiemann WP. c-Abl inhibits breast cancer tumorigenesis through reactivation of p53-mediated p21 expression. Oncotarget 2018; 7:72777-72794. [PMID: 27626309 PMCID: PMC5340126 DOI: 10.18632/oncotarget.11909] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 09/02/2016] [Indexed: 12/31/2022] Open
Abstract
We previously reported that constitutive c-Abl activity (CST-Abl) abrogates the tumorigenicity of triple-negative breast cancer cells through the combined actions of two cellular events: downregulated matrix metalloproteinase (MMP) and upregulated p21Waf1/Cip1 expression. We now find decreased c-Abl expression to be significantly associated with diminished relapse-fee survival in breast cancer patients, particularly those exhibiting invasive and basal phenotypes. Moreover, CST-Abl expression enabled 4T1 cells to persist innocuously in the mammary glands of mice, doing so by exhausting their supply of cancer stem cells. Restoring MMP-9 expression and activity in CST-Abl-expressing 4T1 cells failed to rescue their malignant phenotypes; however, rendering these same cells deficient in p21 expression not only delayed their acquisition of senescent phenotypes, but also partially restored their tumorigenicity in mice. Although 4T1 cells lacked detectable expression of p53, those engineered to express CST-Abl exhibited robust production and secretion of TGF-β1 that engendered the reactivated expression of p53. Mechanistically, TGF-β-mediated p53 expression transpired through the combined actions of Smad1/5/8 and Smad2, leading to the dramatic upregulation of p21 and its stimulation of TNBC senescence. Collectively, we identified a novel c-Abl:p53:p21 signaling axis that functions as a powerful suppressor of mammary tumorigenesis and metastatic progression.
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Affiliation(s)
- Chevaun D Morrison
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Tressa M Allington
- Department of Pharmacology, Anschutz Medical Campus, University of Colorado-Denver, Aurora, CO 80045, USA
| | - Cheryl L Thompson
- Department of Nutrition, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Hannah L Gilmore
- Department of Pathology, University Hospitals, Case Medical Center and Case Western Reserve University, Cleveland, OH 44106, USA
| | - Jenny C Chang
- Houston Methodist Research Center, Houston, TX 77030, USA
| | - Ruth A Keri
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH 44106, USA
| | - William P Schiemann
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA
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Xu X, Zheng L, Yuan Q, Zhen G, Crane JL, Zhou X, Cao X. Transforming growth factor-β in stem cells and tissue homeostasis. Bone Res 2018; 6:2. [PMID: 29423331 PMCID: PMC5802812 DOI: 10.1038/s41413-017-0005-4] [Citation(s) in RCA: 239] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/12/2017] [Accepted: 11/15/2017] [Indexed: 02/05/2023] Open
Abstract
TGF-β 1-3 are unique multi-functional growth factors that are only expressed in mammals, and mainly secreted and stored as a latent complex in the extracellular matrix (ECM). The biological functions of TGF-β in adults can only be delivered after ligand activation, mostly in response to environmental perturbations. Although involved in multiple biological and pathological processes of the human body, the exact roles of TGF-β in maintaining stem cells and tissue homeostasis have not been well-documented until recent advances, which delineate their functions in a given context. Our recent findings, along with data reported by others, have clearly shown that temporal and spatial activation of TGF-β is involved in the recruitment of stem/progenitor cell participation in tissue regeneration/remodeling process, whereas sustained abnormalities in TGF-β ligand activation, regardless of genetic or environmental origin, will inevitably disrupt the normal physiology and lead to pathobiology of major diseases. Modulation of TGF-β signaling with different approaches has proven effective pre-clinically in the treatment of multiple pathologies such as sclerosis/fibrosis, tumor metastasis, osteoarthritis, and immune disorders. Thus, further elucidation of the mechanisms by which TGF-β is activated in different tissues/organs and how targeted cells respond in a context-dependent way can likely be translated with clinical benefits in the management of a broad range of diseases with the involvement of TGF-β.
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Affiliation(s)
- Xin Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Liwei Zheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Quan Yuan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Gehua Zhen
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Janet L. Crane
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD USA
- Department of Pediatrics, Johns Hopkins University, Baltimore, MD USA
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xu Cao
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD USA
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Ramachandran A, Vizán P, Das D, Chakravarty P, Vogt J, Rogers KW, Müller P, Hinck AP, Sapkota GP, Hill CS. TGF-β uses a novel mode of receptor activation to phosphorylate SMAD1/5 and induce epithelial-to-mesenchymal transition. eLife 2018; 7:e31756. [PMID: 29376829 PMCID: PMC5832415 DOI: 10.7554/elife.31756] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 01/26/2018] [Indexed: 12/15/2022] Open
Abstract
The best characterized signaling pathway downstream of transforming growth factor β (TGF-β) is through SMAD2 and SMAD3. However, TGF-β also induces phosphorylation of SMAD1 and SMAD5, but the mechanism of this phosphorylation and its functional relevance is not known. Here, we show that TGF-β-induced SMAD1/5 phosphorylation requires members of two classes of type I receptor, TGFBR1 and ACVR1, and establish a new paradigm for receptor activation where TGFBR1 phosphorylates and activates ACVR1, which phosphorylates SMAD1/5. We demonstrate the biological significance of this pathway by showing that approximately a quarter of the TGF-β-induced transcriptome depends on SMAD1/5 signaling, with major early transcriptional targets being the ID genes. Finally, we show that TGF-β-induced epithelial-to-mesenchymal transition requires signaling via both the SMAD3 and SMAD1/5 pathways, with SMAD1/5 signaling being essential to induce ID1. Therefore, combinatorial signaling via both SMAD pathways is essential for the full TGF-β-induced transcriptional program and physiological responses.
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Affiliation(s)
| | - Pedro Vizán
- Developmental Signalling LaboratoryThe Francis Crick InstituteLondonUnited Kingdom
| | - Debipriya Das
- Developmental Signalling LaboratoryThe Francis Crick InstituteLondonUnited Kingdom
| | - Probir Chakravarty
- Bioinformatics and Biostatistics FacilityThe Francis Crick InstituteLondonUnited Kingdom
| | - Janis Vogt
- Medical Research Council Protein Phosphorylation and Ubiquitylation UnitUniversity of DundeeDundeeUnited Kingdom
| | | | - Patrick Müller
- Friedrich Miescher Laboratory of the Max Planck SocietyTübingenGermany
| | - Andrew P Hinck
- Department of Structural BiologyUniversity of Pittsburgh School of MedicinePittsburghUnited States
| | - Gopal P Sapkota
- Medical Research Council Protein Phosphorylation and Ubiquitylation UnitUniversity of DundeeDundeeUnited Kingdom
| | - Caroline S Hill
- Developmental Signalling LaboratoryThe Francis Crick InstituteLondonUnited Kingdom
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MicroRNA-93-5p may participate in the formation of morphine tolerance in bone cancer pain mouse model by targeting Smad5. Oncotarget 2018; 7:52104-52114. [PMID: 27438143 PMCID: PMC5239538 DOI: 10.18632/oncotarget.10524] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/30/2016] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE In this study, we aim to find out the role of microRNA-93-5p (miR-93) and Smad5 in morphine tolerance in mouse models of bone cancer pain (BCP). RESULTS At 7 days after injection of morphine, the PMWT showed no significant difference between the morphine model group and the saline model group (P < 0.05), suggesting that morphine tolerance had formed in the morphine model group. The morphine model group had higher miR-93 expression and lower Smad5 mRNA expression than the saline model group. Smad5 is a downstream target gene of miR-93. At 7, 9 and 14 days after injection of lentiviruses, the L/anti-miR-93 group had the lowest PMWTs, while the Smad5 shRNA group presented the highest PMWTs among these five groups (all P < 0.05). METHODS We built mouse models of BCP and morphine tolerance and recorded 50% PMWT. After 6 days of modeling, we set saline control group, morphine control, saline model group and morphine model group (morphine tolerance emerged). We performed luciferase reporter gene assay to verify the relation between miR-93 and Smad5. After lentivirus transfection, the mice with morphine tolerance were assigned into L/anti-miR-93 group, Smad5 shRNA group, L/anti-miR-93 + Smad5 shRNA group, blank group and PBS control group. RT-qPCR, Western Blot assay and immumohistochemical staining were performed to observe the changes of miR-93 and Smad5. CONCLUSION Up-regulation of miR-93 may contribute to the progression of morphine tolerance by targeting Smad5 in mouse model of BCP.
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Ventura E, Weller M, Macnair W, Eschbach K, Beisel C, Cordazzo C, Claassen M, Zardi L, Burghardt I. TGF-β induces oncofetal fibronectin that, in turn, modulates TGF-β superfamily signaling in endothelial cells. J Cell Sci 2018; 131:jcs.209619. [PMID: 29158223 DOI: 10.1242/jcs.209619] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 11/14/2017] [Indexed: 12/31/2022] Open
Abstract
Gene splicing profiles are frequently altered in cancer, and the splice variants of fibronectin (FN) that contain the extra-domains A (EDA) or B (EDB), referred to as EDA+FN or EDB+FN, are highly upregulated in tumor vasculature. Transforming growth factor β (TGF-β) signaling has been attributed a pivotal role in glioblastoma, with TGF-β promoting angiogenesis and vessel remodeling. By using immunohistochemistry staining, we observed that the oncofetal FN isoforms EDA+FN and EDB+FN are expressed in glioblastoma vasculature. Ex vivo single-cell gene expression profiling of tumors by using CD31 and α-smooth muscle actin (αSMA) as markers for endothelial cells, and pericytes and vascular smooth muscle cells (VSMCs), respectively, confirmed the predominant expression of FN, EDA+FN and EDB+FN in the vascular compartment of glioblastoma. Specifically, within the CD31-positive cell population, we identified a positive correlation between the expression of EDA+FN and EDB+FN, and of molecules associated with TGF-β signaling. Further, TGF-β induced EDA+FN and EDB+FN in human cerebral microvascular endothelial cells and glioblastoma-derived endothelial cells in a SMAD3- and SMAD4-dependent manner. In turn, we found that FN modulated TGF-β superfamily signaling in endothelial cells via the EDA and EDB, pointing towards a bidirectional influence of oncofetal FN and TGF-β superfamily signaling.
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Affiliation(s)
- Elisa Ventura
- Laboratory of Molecular Neuro-Oncology, Department of Neurology, University Hospital and University of Zurich, Frauenklinikstrasse 26, 8091 Zurich, Switzerland
| | - Michael Weller
- Laboratory of Molecular Neuro-Oncology, Department of Neurology, University Hospital and University of Zurich, Frauenklinikstrasse 26, 8091 Zurich, Switzerland
| | - Will Macnair
- Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland
| | - Katja Eschbach
- Department of Biosystems Science and Engineering, ETH Zürich, 4058 Basel, Switzerland
| | - Christian Beisel
- Department of Biosystems Science and Engineering, ETH Zürich, 4058 Basel, Switzerland
| | - Cinzia Cordazzo
- Sirius-biotech, c/o Advanced Biotechnology Center, 16132 Genoa, Italy
| | - Manfred Claassen
- Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland
| | - Luciano Zardi
- Sirius-biotech, c/o Advanced Biotechnology Center, 16132 Genoa, Italy
| | - Isabel Burghardt
- Laboratory of Molecular Neuro-Oncology, Department of Neurology, University Hospital and University of Zurich, Frauenklinikstrasse 26, 8091 Zurich, Switzerland
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30
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Perino MG, Yamanaka S, Riordon DR, Tarasova Y, Boheler KR. Ascorbic acid promotes cardiomyogenesis through SMAD1 signaling in differentiating mouse embryonic stem cells. PLoS One 2017; 12:e0188569. [PMID: 29232368 PMCID: PMC5726630 DOI: 10.1371/journal.pone.0188569] [Citation(s) in RCA: 7] [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: 05/01/2017] [Accepted: 11/09/2017] [Indexed: 12/03/2022] Open
Abstract
Numerous groups have documented that Ascorbic Acid (AA) promotes cardiomyocyte differentiation from both mouse and human ESCs and iPSCs. AA is now considered indispensable for the routine production of hPSC-cardiomyocytes (CMs) using defined media; however, the mechanisms involved with the inductive process are poorly understood. Using a genetically modified mouse embryonic stem cell (mESC) line containing a dsRED transgene driven by the cardiac-restricted portion of the ncx1 promoter, we show that AA promoted differentiation of mESCs to CMs in a dose- and time-dependent manner. Treatment of mPSCs with AA did not modulate total SMAD content; however, the phosphorylated/active forms of SMAD2 and SMAD1/5/8 were significantly elevated. Co-administration of the SMAD2/3 activator Activin A with AA had no significant effect, but the addition of the nodal co-receptor TDGF1 (Cripto) antagonized AA’s cardiomyogenic-promoting ability. AA could also reverse some of the inhibitory effects on cardiomyogenesis of ALK/SMAD2 inhibition by SB431542, a TGFβ pathway inhibitor. Treatment with BMP2 and AA strongly amplified the positive cardiomyogenic effects of SMAD1/5/8 in a dose-dependent manner. AA could not, however, rescue dorsomorphin-mediated inhibition of ALK/SMAD1 activity. Using an inducible model system, we found that SMAD1, but not SMAD2, was essential for AA to promote the formation of TNNT2+-CMs. These data firmly demonstrate that BMP receptor-activated SMADs, preferential to TGFβ receptor-activated SMADs, are necessary to promote AA stimulated cardiomyogenesis. AA-enhanced cardiomyogenesis thus relies on the ability of AA to modulate the ratio of SMAD signaling among the TGFβ-superfamily receptor signaling pathways.
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Affiliation(s)
- Maria Grazia Perino
- Laboratory of Cardiovascular Science, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, United States of America
- * E-mail:
| | - Satoshi Yamanaka
- Laboratory of Cardiovascular Science, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, United States of America
| | - Daniel R. Riordon
- Laboratory of Cardiovascular Science, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, United States of America
| | - Yelena Tarasova
- Laboratory of Cardiovascular Science, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, United States of America
| | - Kenneth R. Boheler
- Stem Cell and Regenerative Medicine Consortium, School of Biomedical Sciences, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, SAR China
- Division of Cardiology, Johns Hopkins Medical Institute, Baltimore, Maryland, United States of America
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Gencer S, Oleinik N, Kim J, Panneer Selvam S, De Palma R, Dany M, Nganga R, Thomas RJ, Senkal CE, Howe PH, Ogretmen B. TGF-β receptor I/II trafficking and signaling at primary cilia are inhibited by ceramide to attenuate cell migration and tumor metastasis. Sci Signal 2017; 10:eaam7464. [PMID: 29066540 PMCID: PMC5818989 DOI: 10.1126/scisignal.aam7464] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Signaling by the transforming growth factor-β (TGF-β) receptors I and II (TβRI/II) and the primary cilia-localized sonic hedgehog (Shh) pathway promote cell migration and, consequently, tumor metastasis. In contrast, the sphingolipid ceramide inhibits cell proliferation and tumor metastasis. We investigated whether ceramide metabolism inhibited TβRI/II trafficking to primary cilia to attenuate cross-talk between TβRI/II and the Shh pathway. We found that ceramide synthase 4 (CerS4)-generated ceramide stabilized the association between TβRI and the inhibitory factor Smad7, which limited the trafficking of TβRI/II to primary cilia. Expression of a mutant TβRI that signals but does not interact with Smad7 prevented the CerS4-mediated inhibition of migration in various cancer cells. Genetic deletion or knockdown of CerS4 prevented the formation of the Smad7-TβRI inhibitory complex and increased the association between TβRI and the transporter Arl6 through a previously unknown cilia-targeting signal (Ala31Thr32Ala33Leu34Gln35) in TβRI. Mutating the cilia-targeting signal abolished the trafficking of TβRI to the primary cilia. Localization of TβRI to primary cilia activated a key mediator of Shh signaling, Smoothened (Smo), which stimulated cellular migration and invasion. TβRI-Smo cross-talk at the cilia in CerS4-deficient 4T1 mammary cancer cells induced liver metastasis from orthotopic allografts in both wild-type and CerS4-deficient mice, which was prevented by overexpression of Smad7 or knockdown of intraflagellar transport protein 88 (IFT88). Overall, these data reveal a ceramide-dependent mechanism that suppresses cell migration and invasion by restricting TβRI/II-Shh signaling selectively at the plasma membrane of the primary cilium.
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Affiliation(s)
- Salih Gencer
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Natalia Oleinik
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Jisun Kim
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Shanmugam Panneer Selvam
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Ryan De Palma
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Mohammed Dany
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Rose Nganga
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Raquela J Thomas
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Can E Senkal
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Philip H Howe
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Besim Ogretmen
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 125 Ashley Avenue, Charleston, SC 29425, USA.
- Hollings Cancer Center, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
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32
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Dichotomous roles of TGF-β in human cancer. Biochem Soc Trans 2017; 44:1441-1454. [PMID: 27911726 DOI: 10.1042/bst20160065] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/27/2016] [Accepted: 06/09/2016] [Indexed: 12/11/2022]
Abstract
Transforming growth factor-β (TGF-β) mediates numerous biological processes, including embryonic development and the maintenance of cellular homeostasis in a context-dependent manner. Consistent with its central role in maintaining cellular homeostasis, inhibition of TGF-β signaling results in disruption of normal homeostatic processes and subsequent carcinogenesis, defining the TGF-β signaling pathway as a tumor suppressor. However, once carcinogenesis is initiated, the TGF-β signaling pathway promotes cancer progression. This dichotomous function of the TGF-β signaling pathway is mediated through altering effects on both the cancer cells, by inducing apoptosis and inhibiting proliferation, and the tumor microenvironment, by promoting angiogenesis and inhibiting immunosurveillance. Current studies support inhibition of TGF-β signaling either alone, or in conjunction with anti-angiogenic therapy or immunotherapy as a promising strategy for the treatment of human cancers.
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van Caam A, Madej W, Garcia de Vinuesa A, Goumans MJ, Ten Dijke P, Blaney Davidson E, van der Kraan P. TGFβ1-induced SMAD2/3 and SMAD1/5 phosphorylation are both ALK5-kinase-dependent in primary chondrocytes and mediated by TAK1 kinase activity. Arthritis Res Ther 2017; 19:112. [PMID: 28569204 PMCID: PMC5452635 DOI: 10.1186/s13075-017-1302-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 05/02/2017] [Indexed: 11/26/2022] Open
Abstract
Background Dysregulated transforming growth factor β (TGFβ) signaling is implicated in osteoarthritis development, making normalizing TGFβ signaling a possible therapy. Theoretically, this can be achieved with small molecule inhibitors specifically targeting the various TGFβ receptors and downstream mediators. In this study we explore in primary chondrocytes the use of small molecule inhibitors to target TGFβ-induced pSmad1/5/9-, pSmad2/3- and TGFβ-activated kinase 1 (TAK1)-dependent signaling. Method Primary bovine chondrocytes and explants were isolated from metacarpophalangeal joints. To modulate TGFβ signaling the activin receptor-like kinase (ALK)1/2/3/6 inhibitor LDN-193189, the ALK4/5/7 inhibitor SB-505124 and the TAK1 inhibitor (5Z)-7-Oxozeaenol were used. pSmad1/5 and pSmad2 were measured using western blot analysis and TGFβ1-induced gene expression was measured using quantitative real time PCR (qPCR). Results In chondrocytes, TGFβ1 strongly induced both pSmad1/5 and pSmad2. Remarkably, LDN-193189 did not inhibit TGFβ-induced pSmad1/5. In contrast, SB-505124 did inhibit both TGFβ-induced Smad2 and Smad1/5 phosphorylation. Furthermore, (5Z)-7-Oxozeaenol also profoundly inhibited TGFβ-induced pSmad2 and pSmad1/5. Importantly, both SB-505124 and (5Z)-7-Oxozeaenol did not significantly inhibit constitutively active ALK1, making an off-target effect unlikely. Additionally, LDN-193189 was able to potently inhibit BMP2/7/9-induced pSmad1/5, showing its functionality. On gene expression, LDN-193189 did not affect TGFβ1-induced regulation, whereas both SB-505124 and (5Z)-7-Oxozeaenol did. Similar results were obtained in cartilage explants, although pSmad1/5 was not strongly induced by addition of TGFβ1. Conclusion Our data suggest that ALK5 kinase activity plays a central role in both TGFβ-induced Smad1/5 and Smad2/3 phosphorylation, making it difficult to separate both pathways with the use of currently available small molecule inhibitors. Furthermore, our data regarding (5Z)-7-Oxozeaenol suggest that TAK1 facilitates Smad-dependent signaling. Electronic supplementary material The online version of this article (doi:10.1186/s13075-017-1302-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Arjan van Caam
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Wojciech Madej
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands.,Orthopaedics Research Lab, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Amaya Garcia de Vinuesa
- Department of Molecular Cell Biology and Cancer Genomics Centre Netherlands, Leiden University Medical Center, Leiden, The Netherlands
| | - Marie-José Goumans
- Department of Molecular Cell Biology and Cancer Genomics Centre Netherlands, Leiden University Medical Center, Leiden, The Netherlands
| | - Peter Ten Dijke
- Department of Molecular Cell Biology and Cancer Genomics Centre Netherlands, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Peter van der Kraan
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
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34
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Chan KH, Galuska SP, Kudipudi PK, Riaz MA, Loveland KL, Konrad L. Signaling by TGF-betas in tubule cultures of adult rat testis. Am J Transl Res 2017; 9:1173-1182. [PMID: 28386343 PMCID: PMC5376008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 08/25/2016] [Indexed: 06/07/2023]
Abstract
Although signal transduction of transforming growth factor-betas (TGF-βs) is well characterized in individual cell types, data about TGF-β signaling in a cellular context is still scarce. In this study, we used ex vivo tubule cultures from adult rat testis to investigate TGF-β signaling. We show for the first time in testicular tubules, that TGF-βs also signal via the BMP type I receptors, with ALK2 used by TGF-β1 and ALK3 and ALK6 by TGF-β2. This signal transduction is mediated via Smad3 as well as via Smad1. In contrast, BMPs (BMP2 and BMP7) do not signal via the high-affinity type I and type II TGFβ receptors, TBR1 or TBR2. Furthermore, treatment of tubule cultures with either TGF-β1 or TGF-β2 had profound significant stimulatory effects on secretion of plasminogen activator-1 (PAI-1) through utilization of TGF-β and BMP receptors. Specific inhibitors for either TBR1 or BMP receptors yielded nearly complete inhibition of TGF-β signaling. The TBR1-TBR2 signalosome was detected with Duolink upon stimulation with either TGF-β1 or TGF-β2, predominantly in spermatogenic cells of the adult rat testis, particularly in elongated spermatids. In summary, this examination of intact rat testicular tubules demonstrated for the first time that TGF-βs signal mainly through TBR1 and TBR2 but also use BMP receptors, including for secretion of PAI-1. Whereas ALK2 participates in the TGF-β1-induced TBR1-TBR2 signalosome, ALK3 and ALK6 are involved in signaling of TGF-β2. Detection of the TBR1-TBR2 signalosome in late spermiogenic cells indicates a post-meiotic activity.
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Affiliation(s)
- Kai-Hui Chan
- Center of Gynecology and Obstetrics, Faculty of Medicine, Justus Liebig University GiessenGiessen, Germany
| | - Sebastian P Galuska
- Institute of Biochemistry, Justus Liebig University GiessenGiessen, Germany
- Department of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN)Germany
| | - Pradeep Kumar Kudipudi
- Center of Gynecology and Obstetrics, Faculty of Medicine, Justus Liebig University GiessenGiessen, Germany
| | - Mohammad Assad Riaz
- Center of Gynecology and Obstetrics, Faculty of Medicine, Justus Liebig University GiessenGiessen, Germany
| | - Kate L Loveland
- Centre for Reproductive Health, Hudson Institute for Medical ResearchMelbourne, Australia
- Department of Molecular and Translational Sciences, School of Clinical Science, Monash UniversityMelbourne, Australia
| | - Lutz Konrad
- Center of Gynecology and Obstetrics, Faculty of Medicine, Justus Liebig University GiessenGiessen, Germany
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35
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Kocsis T, Trencsenyi G, Szabo K, Baan JA, Muller G, Mendler L, Garai I, Reinauer H, Deak F, Dux L, Keller-Pinter A. Myostatin propeptide mutation of the hypermuscular Compact mice decreases the formation of myostatin and improves insulin sensitivity. Am J Physiol Endocrinol Metab 2017; 312:E150-E160. [PMID: 27965203 DOI: 10.1152/ajpendo.00216.2016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 11/29/2016] [Accepted: 11/30/2016] [Indexed: 12/30/2022]
Abstract
The TGFβ family member myostatin (growth/differentiation factor-8) is a negative regulator of skeletal muscle growth. The hypermuscular Compact mice carry the 12-bp Mstn(Cmpt-dl1Abc) deletion in the sequence encoding the propeptide region of the precursor promyostatin, and additional modifier genes of the Compact genetic background contribute to determine the full expression of the phenotype. In this study, by using mice strains carrying mutant or wild-type myostatin alleles with the Compact genetic background and nonmutant myostatin with the wild-type background, we studied separately the effect of the Mstn(Cmpt-dl1Abc) mutation or the Compact genetic background on morphology, metabolism, and signaling. We show that both the Compact myostatin mutation and Compact genetic background account for determination of skeletal muscle size. Despite the increased musculature of Compacts, the absolute size of heart and kidney is not influenced by myostatin mutation; however, the Compact genetic background increases them. Both Compact myostatin and genetic background exhibit systemic metabolic effects. The Compact mutation decreases adiposity and improves whole body glucose uptake, insulin sensitivity, and 18FDG uptake of skeletal muscle and white adipose tissue, whereas the Compact genetic background has the opposite effect. Importantly, the mutation does not prevent the formation of mature myostatin; however, a decrease in myostatin level was observed, leading to altered activation of Smad2, Smad1/5/8, and Akt, and an increased level of p-AS160, a Rab-GTPase-activating protein responsible for GLUT4 translocation. Based on our analysis, the Compact genetic background strengthens the effect of myostatin mutation on muscle mass, but those can compensate for each other when systemic metabolic effects are compared.
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Affiliation(s)
- Tamas Kocsis
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | | | - Kitti Szabo
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Julia Aliz Baan
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Geza Muller
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Luca Mendler
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | | | | | - Ferenc Deak
- Institute of Genetics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Laszlo Dux
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Aniko Keller-Pinter
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary;
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Fu SH, Wang HY, Zhang JY, Shi HM, Zhang N, Ye W, Xiao YQ. Overexpression of ALK5 Induces Human Tenon’s Capsule Fibroblasts Transdifferentiation and Fibrosis In Vitro. Curr Eye Res 2017. [PMID: 28632033 DOI: 10.1080/02713683.2016.1276198] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Shu-hao Fu
- Department of Ophthalmology, Huashan Hospital, Fudan University, Shanghai, China
| | - Hui-ying Wang
- Department of Ophthalmology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jia-ying Zhang
- Department of Ophthalmology, Huashan Hospital, Fudan University, Shanghai, China
| | - Hui-min Shi
- Department of Ophthalmology, Huashan Hospital, Fudan University, Shanghai, China
| | - Nan Zhang
- Department of Ophthalmology, Huashan Hospital, Fudan University, Shanghai, China
| | - Wen Ye
- Department of Ophthalmology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yi-qin Xiao
- Department of Ophthalmology, Huashan Hospital, Fudan University, Shanghai, China
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P. Croxford K, L. Reader K, D. Nicholson H. The potential role of transforming growth factor beta family ligand interactions in prostate cancer. AIMS MOLECULAR SCIENCE 2017. [DOI: 10.3934/molsci.2017.1.41] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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38
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Raja E, Tzavlaki K, Vuilleumier R, Edlund K, Kahata K, Zieba A, Morén A, Watanabe Y, Voytyuk I, Botling J, Söderberg O, Micke P, Pyrowolakis G, Heldin CH, Moustakas A. The protein kinase LKB1 negatively regulates bone morphogenetic protein receptor signaling. Oncotarget 2016; 7:1120-43. [PMID: 26701726 PMCID: PMC4811448 DOI: 10.18632/oncotarget.6683] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 12/08/2015] [Indexed: 01/24/2023] Open
Abstract
The protein kinase LKB1 regulates cell metabolism and growth and is implicated in intestinal and lung cancer. Bone morphogenetic protein (BMP) signaling regulates cell differentiation during development and tissue homeostasis. We demonstrate that LKB1 physically interacts with BMP type I receptors and requires Smad7 to promote downregulation of the receptor. Accordingly, LKB1 suppresses BMP-induced osteoblast differentiation and affects BMP signaling in Drosophila wing longitudinal vein morphogenesis. LKB1 protein expression and Smad1 phosphorylation analysis in a cohort of non-small cell lung cancer patients demonstrated a negative correlation predominantly in a subset enriched in adenocarcinomas. Lung cancer patient data analysis indicated strong correlation between LKB1 loss-of-function mutations and high BMP2 expression, and these two events further correlated with expression of a gene subset functionally linked to apoptosis and migration. This new mechanism of BMP receptor regulation by LKB1 has ramifications in physiological organogenesis and disease.
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Affiliation(s)
- Erna Raja
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Kalliopi Tzavlaki
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Robin Vuilleumier
- BIOSS, Centre for Biological Signaling Studies and Institute for Biology I, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Karolina Edlund
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Kaoru Kahata
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Agata Zieba
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Anita Morén
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Yukihide Watanabe
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Iryna Voytyuk
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Johan Botling
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Ola Söderberg
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Patrick Micke
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - George Pyrowolakis
- BIOSS, Centre for Biological Signaling Studies and Institute for Biology I, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Carl-Henrik Heldin
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Aristidis Moustakas
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.,Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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Kanamori Y, Sugiyama M, Hashimoto O, Murakami M, Matsui T, Funaba M. Regulation of hepcidin expression by inflammation-induced activin B. Sci Rep 2016; 6:38702. [PMID: 27922109 PMCID: PMC5138601 DOI: 10.1038/srep38702] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 11/14/2016] [Indexed: 02/08/2023] Open
Abstract
Activin B is induced in response to inflammation in the liver and enhances hepcidin expression, but the source of activin B and the molecular mechanism underlying hepcidin induction are not clear yet. Lipopolysaccharide (LPS)-induced inflammation induced inhibin βB but not inhibin α or inhibin βA expression in the liver, implicating activin B induction. Immunoreactive inhibin βB was detected in endothelial cells and Kupffer cells in LPS-treated liver. Activin B, but not activin A or activin AB, directly increased hepcidin expression. Activin B induced phosphorylation and activation of Smad1/5/8, the BMP-regulated (BR)-Smads. The stimulation of hepcidin transcription by activin B was mediated by ALK2 and ActRIIA, receptors for the TGF-β family. Unexpectedly, activin B-induced hepcidin expression and BR-Smad phosphorylation were resistant to the effects of LDN-193189, an ALK2/3/6 inhibitor. ALK2 and ActRIIA complex formation in response to activin B may prevent the approach of LDN-193189 to ALK2 to inhibit its activity. Activin B also induced phosphorylation of Smad2/3, the TGF-β/activin-regulated (AR)-Smad, and increased expression of connective tissue growth factor, a gene related to liver fibrogenesis, through ALK4 and ActRIIA/B. Activin B-induced activation of the BR-Smad pathway was also detected in non-liver-derived cells. The present study reveals the broad signaling of activin B, which is induced in non-parenchymal cells in response to hepatic inflammation, in hepatocytes.
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Affiliation(s)
- Yohei Kanamori
- Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Makoto Sugiyama
- Laboratory of Veterinary Anatomy, Kitasato University School of Veterinary Medicine, Towada 034-8628, Japan
| | - Osamu Hashimoto
- Laboratory of Experimental Animal Science, Kitasato University School of Veterinary Medicine, Towada 034-8628, Japan
| | - Masaru Murakami
- Laboratory of Molecular Biology, Azabu University School of Veterinary Medicine, Sagamihara 252-5201, Japan
| | - Tohru Matsui
- Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Masayuki Funaba
- Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
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40
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Xu P, Lin X, Feng XH. Posttranslational Regulation of Smads. Cold Spring Harb Perspect Biol 2016; 8:cshperspect.a022087. [PMID: 27908935 DOI: 10.1101/cshperspect.a022087] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Transforming growth factor β (TGF-β) family signaling dictates highly complex programs of gene expression responses, which are extensively regulated at multiple levels and vary depending on the physiological context. The formation, activation, and destruction of two major functional complexes in the TGF-β signaling pathway (i.e., the TGF-β receptor complexes and the Smad complexes that act as central mediators of TGF-β signaling) are direct targets for posttranslational regulation. Dysfunction of these complexes often leads or contributes to pathogenesis in cancer and fibrosis and in cardiovascular, and autoimmune diseases. Here we discuss recent insights into the roles of posttranslational modifications in the functions of the receptor-activated Smads in the common Smad4 and inhibitory Smads, and in the control of the physiological responses to TGF-β. It is now evident that these modifications act as decisive factors in defining the intensity and versatility of TGF-β responsiveness. Thus, the characterization of posttranslational modifications of Smads not only sheds light on how TGF-β controls physiological and pathological processes but may also guide us to manipulate the TGF-β responses for therapeutic benefits.
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Affiliation(s)
- Pinglong Xu
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xia Lin
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030
| | - Xin-Hua Feng
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, Zhejiang 310058, China.,Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030.,Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, Texas 77030
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41
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Coster AD, Thorne CA, Wu LF, Altschuler SJ. Examining Crosstalk among Transforming Growth Factor β, Bone Morphogenetic Protein, and Wnt Pathways. J Biol Chem 2016; 292:244-250. [PMID: 27895117 PMCID: PMC5217683 DOI: 10.1074/jbc.m116.759654] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 11/15/2016] [Indexed: 11/10/2022] Open
Abstract
The integration of morphogenic signals by cells is not well understood. A growing body of literature suggests increasingly complex coupling among classically defined pathways. Given this apparent complexity, it is difficult to predict where, when, or even whether crosstalk occurs. Here, we investigated pairs of morphogenic pathways, previously reported to have multiple points of crosstalk, which either do not share (TGFβ and Wnt/β-catenin) or share (TGFβ and bone morphogenetic protein (BMP)) core signaling components. Crosstalk was measured by the ability of one morphogenic pathway to cross-activate core transcription factors and/or target genes of another morphogenic pathway. In contrast to previous studies, we found a surprising absence of crosstalk between TGFβ and Wnt/β-catenin. Further, we did not observe expected cross-pathway inhibition in between TGFβ and BMP, despite the fact that both use (or could compete) for the shared component SMAD4. Critical to our assays was a separation of timescales, which helped separate crosstalk due to initial signal transduction from subsequent post-transcriptional feedback events. Our study revealed fewer (and different) inter-morphogenic pathway crosstalk connections than expected; even pathways that share components can be insulated from one another.
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Affiliation(s)
- Adam D Coster
- From the Green Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390 and
| | - Curtis A Thorne
- From the Green Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390 and
| | - Lani F Wu
- From the Green Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390 and .,the Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158
| | - Steven J Altschuler
- From the Green Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390 and .,the Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158
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42
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Abstract
Transforming growth factor β (TGF-β) family members signal via heterotetrameric complexes of type I and type II dual specificity kinase receptors. The activation and stability of the receptors are controlled by posttranslational modifications, such as phosphorylation, ubiquitylation, sumoylation, and neddylation, as well as by interaction with other proteins at the cell surface and in the cytoplasm. Activation of TGF-β receptors induces signaling via formation of Smad complexes that are translocated to the nucleus where they act as transcription factors, as well as via non-Smad pathways, including the Erk1/2, JNK and p38 MAP kinase pathways, and the Src tyrosine kinase, phosphatidylinositol 3'-kinase, and Rho GTPases.
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Affiliation(s)
- Carl-Henrik Heldin
- Ludwig Institute for Cancer Research Ltd., Science for Life Laboratory, Uppsala University, SE-751 24 Uppsala, Sweden
| | - Aristidis Moustakas
- Ludwig Institute for Cancer Research Ltd., Science for Life Laboratory, Uppsala University, SE-751 24 Uppsala, Sweden Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, SE-751 23 Uppsala, Sweden
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43
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Chen CL, Kao YC, Yang PH, Sung PJ, Wen ZH, Chen JJ, Huang YB, Chen PY. A Small Dibromotyrosine Derivative Purified From Pseudoceratina Sp. Suppresses TGF-β Responsiveness by Inhibiting TGF-β Type I Receptor Serine/Threonine Kinase Activity. J Cell Biochem 2016; 117:2800-2814. [PMID: 27153151 DOI: 10.1002/jcb.25581] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 05/02/2016] [Indexed: 01/05/2023]
Abstract
For clinical application, there is a great need for small-molecule inhibitors (SMIs) that could control pathogenic effects of transforming growth factor (TGF-β) and/or modulate effects of TGF-β in normal responses. Selective SMIs of the TGF-β signaling pathway developed for therapeutics will also be powerful tools in experimentally dissecting this complex pathway, especially its cross-talk with other signaling pathways. In this study, we characterized (1'R,5'S,6'S)-2-(3',5'-dibromo-1',6'-dihydroxy-4'-oxocyclohex-2'-enyl) acetonitrile (DT), a member of a new class of small-molecule inhibitors related to bromotyrosine derivate from Pseudoceratina sp., which inhibits the TGF-β type I receptor serine/threonine kinase known as activin receptor-like kinase (ALK) 5. The inhibitory effects of DT on TGF-β-induced Smad signaling and epithelial-to-mesenchymal transition (EMT) were investigated in epithelial cells using in vitro kinase assay, luciferase reporter assays, immunoblotting, confocal microscopy, and wound healing assays. The novel ALK5 inhibitor, DT, inhibited the TGF-β-stimulated transcriptional activations of 3TP-Lux. In addition, DT decreased phosphorylated Smad2/3 levels and the nuclear translocation of Smad2/3 increased by TGF-β. In addition, DT inhibited TGF-β-induced EMT and wound healing of A549 cells. Our results suggest that DT is a potential therapeutic agent for fibrotic disease and cancer treatment. J. Cell. Biochem. 117: 2800-2814, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Chun-Lin Chen
- Department of Biological Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC. .,Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica, Kaohsiung, 80424, Taiwan, ROC.
| | - Yu-Chen Kao
- Department of Biological Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC
| | - Pei-Hua Yang
- Department of Biological Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC
| | - Ping-Jyun Sung
- Graduate Institute of Marine Biology, National Dong Hwa University, Hualien 97401, Taiwan, ROC.,National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan, ROC
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC
| | - Jih-Jung Chen
- Department of Pharmacy and Graduate Institute of Pharmaceutical Technology, Tajen University, Pingtung 907, Taiwan, ROC
| | - Yaw-Bin Huang
- Department of Biological Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC
| | - Pei-Yu Chen
- Department of Biological Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC
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44
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Ali IHA, Brazil DP. Bone morphogenetic proteins and their antagonists: current and emerging clinical uses. Br J Pharmacol 2016; 171:3620-32. [PMID: 24758361 DOI: 10.1111/bph.12724] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 04/02/2014] [Accepted: 04/08/2014] [Indexed: 12/13/2022] Open
Abstract
Bone morphogenetic proteins (BMPs) are members of the TGFβ superfamily of secreted cysteine knot proteins that includes TGFβ1, nodal, activins and inhibins. BMPs were first discovered by Urist in the 1960s when he showed that implantation of demineralized bone into intramuscular tissue of rabbits induced bone and cartilage formation. Since this seminal discovery, BMPs have also been shown to play key roles in several other biological processes, including limb, kidney, skin, hair and neuronal development, as well as maintaining vascular homeostasis. The multifunctional effects of BMPs make them attractive targets for the treatment of several pathologies, including bone disorders, kidney and lung fibrosis, and cancer. This review will summarize current knowledge on the BMP signalling pathway and critically evaluate the potential of recombinant BMPs as pharmacological agents for the treatment of bone repair and tissue fibrosis in patients.
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Affiliation(s)
- Imran H A Ali
- Centre for Experimental Medicine, Queen's University Belfast, Belfast, Northern Ireland, UK
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45
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Chen S, Feng T, Vujić Spasić M, Altamura S, Breitkopf-Heinlein K, Altenöder J, Weiss TS, Dooley S, Muckenthaler MU. Transforming Growth Factor β1 (TGF-β1) Activates Hepcidin mRNA Expression in Hepatocytes. J Biol Chem 2016; 291:13160-74. [PMID: 27129231 DOI: 10.1074/jbc.m115.691543] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 12/15/2022] Open
Abstract
The hepatic hormone hepcidin is the master regulator of systemic iron homeostasis. Its expression level is adjusted to alterations in iron levels, inflammatory cues, and iron requirements for erythropoiesis. Bone morphogenetic protein 6 (BMP6) contributes to the iron-dependent control of hepcidin. In addition, TGF-β1 may stimulate hepcidin mRNA expression in murine hepatocytes and human leukocytes. However, receptors and downstream signaling proteins involved in TGF-β1-induced hepcidin expression are still unclear. Here we show that TGF-β1 treatment of mouse and human hepatocytes, as well as ectopic expression of TGF-β1 in mice, increases hepcidin mRNA levels. The hepcidin response to TGF-β1 depends on functional TGF-β1 type I receptor (ALK5) and TGF-β1 type II receptor (TβRII) and is mediated by a noncanonical mechanism that involves Smad1/5/8 phosphorylation. Interestingly, increasing availability of canonical Smad2/3 decreases TGF-β1-induced hepcidin regulation, whereas the BMP6-hepcidin signal was enhanced, indicating a signaling component stoichiometry-dependent cross-talk between the two pathways. Although ALK2/3-dependent hepcidin activation by BMP6 can be modulated by each of the three hemochromatosis-associated proteins: HJV (hemojuvelin), HFE (hemochromatosis protein), and TfR2 (transferrin receptor 2), these proteins do not control the ALK5-mediated hepcidin response to TGF-β1. TGF-β1 mRNA levels are increased in mouse models of iron overload, indicating that TGF-β1 may contribute to hepcidin synthesis under these conditions. In conclusion, these data demonstrate that a complex regulatory network involving TGF-β1 and BMP6 may control the sensing of systemic and/or hepatic iron levels.
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Affiliation(s)
- Simeng Chen
- From the Department of Pediatric Hematology, Oncology and Immunology, University of Heidelberg, 69117 Heidelberg, Germany, the Department of Medicine II, Molecular Hepatology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany, the Molecular Medicine Partnership Unit, 69120 Heidelberg, Germany, and
| | - Teng Feng
- the Department of Medicine II, Molecular Hepatology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Maja Vujić Spasić
- From the Department of Pediatric Hematology, Oncology and Immunology, University of Heidelberg, 69117 Heidelberg, Germany, the Molecular Medicine Partnership Unit, 69120 Heidelberg, Germany, and
| | - Sandro Altamura
- From the Department of Pediatric Hematology, Oncology and Immunology, University of Heidelberg, 69117 Heidelberg, Germany, the Molecular Medicine Partnership Unit, 69120 Heidelberg, Germany, and
| | - Katja Breitkopf-Heinlein
- the Department of Medicine II, Molecular Hepatology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Jutta Altenöder
- the Department of Medicine II, Molecular Hepatology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Thomas S Weiss
- Center for Liver Cell Research, Department of Pediatrics and Juvenile Medicine, University of Regensburg Hospital, 93053 Regensburg, Germany
| | - Steven Dooley
- the Department of Medicine II, Molecular Hepatology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany,
| | - Martina U Muckenthaler
- From the Department of Pediatric Hematology, Oncology and Immunology, University of Heidelberg, 69117 Heidelberg, Germany, the Molecular Medicine Partnership Unit, 69120 Heidelberg, Germany, and
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Aykul S, Martinez-Hackert E. Transforming Growth Factor-β Family Ligands Can Function as Antagonists by Competing for Type II Receptor Binding. J Biol Chem 2016; 291:10792-804. [PMID: 26961869 DOI: 10.1074/jbc.m115.713487] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Indexed: 12/27/2022] Open
Abstract
Transforming growth factor-β (TGF-β) family ligands are pleiotropic cytokines. Their physiological activities are not determined by a simple coupling of stimulus and response, but depend critically on context, i.e. the interplay of receptors, ligands, and regulators that form the TGF-β signal transduction system of a cell or tissue. How these different components combine to regulate signaling activities remains poorly understood. Here, we describe a ligand-mediated mechanism of signaling regulation. Based on the observation that the type II TGF-β family receptors ActRIIA, ActRIIB, and BMPRII interact with a large group of overlapping ligands at overlapping epitopes, we hypothesized high affinity ligands compete with low affinity ligands for receptor binding and signaling. We show activin A and other high affinity ligands directly inhibited signaling by the low affinity ligands BMP-2, BMP-7, and BMP-9. We demonstrate activin A functions as a competitive inhibitor that blocks the ligand binding epitope on type II receptors. We propose binding competition and signaling antagonism are integral functions of the TGF-β signal transduction system. These functions could help explain how activin A modulates physiological signaling during extraordinary cellular responses, such as injury and wound healing, and how activin A could elicit disease phenotypes such as cancer-related muscle wasting and fibrosis.
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Affiliation(s)
- Senem Aykul
- From the Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824-1319
| | - Erik Martinez-Hackert
- From the Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824-1319
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Canali S, Core AB, Zumbrennen-Bullough KB, Merkulova M, Wang CY, Schneyer AL, Pietrangelo A, Babitt JL. Activin B Induces Noncanonical SMAD1/5/8 Signaling via BMP Type I Receptors in Hepatocytes: Evidence for a Role in Hepcidin Induction by Inflammation in Male Mice. Endocrinology 2016; 157:1146-62. [PMID: 26735394 PMCID: PMC4769363 DOI: 10.1210/en.2015-1747] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Induction of the iron regulatory hormone hepcidin contributes to the anemia of inflammation. Bone morphogenetic protein 6 (BMP6) signaling is a central regulator of hepcidin expression in the liver. Recently, the TGF-β/BMP superfamily member activin B was implicated in hepcidin induction by inflammation via noncanonical SMAD1/5/8 signaling, but its mechanism of action and functional significance in vivo remain uncertain. Here, we show that low concentrations of activin B, but not activin A, stimulate prolonged SMAD1/5/8 signaling and hepcidin expression in liver cells to a similar degree as canonical SMAD2/3 signaling, and with similar or modestly reduced potency compared with BMP6. Activin B stimulates hepcidin via classical activin type II receptors ACVR2A and ACVR2B, noncanonical BMP type I receptors activin receptor-like kinase 2 and activin receptor-like kinase 3, and SMAD5. The coreceptor hemojuvelin binds to activin B and facilitates activin B-SMAD1/5/8 signaling. Activin B-SMAD1/5/8 signaling has some selectivity for hepatocyte-derived cells and is not enabled by hemojuvelin in other cell types. Liver activin B mRNA expression is up-regulated in multiple mouse models of inflammation associated with increased hepcidin and hypoferremia, including lipopolysaccharide, turpentine, and heat-killed Brucella abortus models. Finally, the activin inhibitor follistatin-315 blunts hepcidin induction by lipopolysaccharide or B. abortus in mice. Our data elucidate a novel mechanism for noncanonical SMAD activation and support a likely functional role for activin B in hepcidin stimulation during inflammation in vivo.
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Affiliation(s)
- Susanna Canali
- Program in Anemia Signaling Research (S.C., A.B.C., K.B.Z.-B., M.M., C.-Y.W., J.L.B.), Division of Nephrology, Program in Membrane Biology, Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114; Center for Hemochromatosis (S.C., A.P.), University Hospital of Modena and Reggio Emilia, Modena Italy 41124; and Department of Veterinary and Animal Science (A.S.), University of Massachusetts Amherst, Amherst, Massachusetts 01003
| | - Amanda B Core
- Program in Anemia Signaling Research (S.C., A.B.C., K.B.Z.-B., M.M., C.-Y.W., J.L.B.), Division of Nephrology, Program in Membrane Biology, Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114; Center for Hemochromatosis (S.C., A.P.), University Hospital of Modena and Reggio Emilia, Modena Italy 41124; and Department of Veterinary and Animal Science (A.S.), University of Massachusetts Amherst, Amherst, Massachusetts 01003
| | - Kimberly B Zumbrennen-Bullough
- Program in Anemia Signaling Research (S.C., A.B.C., K.B.Z.-B., M.M., C.-Y.W., J.L.B.), Division of Nephrology, Program in Membrane Biology, Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114; Center for Hemochromatosis (S.C., A.P.), University Hospital of Modena and Reggio Emilia, Modena Italy 41124; and Department of Veterinary and Animal Science (A.S.), University of Massachusetts Amherst, Amherst, Massachusetts 01003
| | - Maria Merkulova
- Program in Anemia Signaling Research (S.C., A.B.C., K.B.Z.-B., M.M., C.-Y.W., J.L.B.), Division of Nephrology, Program in Membrane Biology, Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114; Center for Hemochromatosis (S.C., A.P.), University Hospital of Modena and Reggio Emilia, Modena Italy 41124; and Department of Veterinary and Animal Science (A.S.), University of Massachusetts Amherst, Amherst, Massachusetts 01003
| | - Chia-Yu Wang
- Program in Anemia Signaling Research (S.C., A.B.C., K.B.Z.-B., M.M., C.-Y.W., J.L.B.), Division of Nephrology, Program in Membrane Biology, Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114; Center for Hemochromatosis (S.C., A.P.), University Hospital of Modena and Reggio Emilia, Modena Italy 41124; and Department of Veterinary and Animal Science (A.S.), University of Massachusetts Amherst, Amherst, Massachusetts 01003
| | - Alan L Schneyer
- Program in Anemia Signaling Research (S.C., A.B.C., K.B.Z.-B., M.M., C.-Y.W., J.L.B.), Division of Nephrology, Program in Membrane Biology, Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114; Center for Hemochromatosis (S.C., A.P.), University Hospital of Modena and Reggio Emilia, Modena Italy 41124; and Department of Veterinary and Animal Science (A.S.), University of Massachusetts Amherst, Amherst, Massachusetts 01003
| | - Antonello Pietrangelo
- Program in Anemia Signaling Research (S.C., A.B.C., K.B.Z.-B., M.M., C.-Y.W., J.L.B.), Division of Nephrology, Program in Membrane Biology, Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114; Center for Hemochromatosis (S.C., A.P.), University Hospital of Modena and Reggio Emilia, Modena Italy 41124; and Department of Veterinary and Animal Science (A.S.), University of Massachusetts Amherst, Amherst, Massachusetts 01003
| | - Jodie L Babitt
- Program in Anemia Signaling Research (S.C., A.B.C., K.B.Z.-B., M.M., C.-Y.W., J.L.B.), Division of Nephrology, Program in Membrane Biology, Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114; Center for Hemochromatosis (S.C., A.P.), University Hospital of Modena and Reggio Emilia, Modena Italy 41124; and Department of Veterinary and Animal Science (A.S.), University of Massachusetts Amherst, Amherst, Massachusetts 01003
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MiR-181b regulates cisplatin chemosensitivity and metastasis by targeting TGFβR1/Smad signaling pathway in NSCLC. Sci Rep 2015; 5:17618. [PMID: 26620926 PMCID: PMC4664936 DOI: 10.1038/srep17618] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 11/03/2015] [Indexed: 01/26/2023] Open
Abstract
MicroRNAs (miRNAs) have been identified as important post-transcriptional regulators involved in various biological and pathological processes of cells, but their underlying mechanisms in chemosensitivity and metastasis have not been fully elucidated. The objective of this study was to identify miR-181b and its mechanism in the chemosensitivity and metastasis of NSCLC. We found that miR-181b expression levels were lower in A549/DDP cells compared with A549 cells. Functional assays showed that the overexpression of miR-181b inhibited proliferation, enhanced chemosensitivity to DDP, attenuated migration and metastatic ability in NSCLC cell lines in vitro and in vivo. TGFβR1 was subsequently identified as a novel functional target of miR-181b. TGFβR1 knockdown revealed similar effects as that of ectopic miR-181b expression, whereas overexpression of TGFβR1 rescued the function of miR-181b-mediated growth, chemosensitivity and metastasis in NSCLC cells. In addition, miR-181b could inactivate the TGFβR1/Smad signaling pathway. We also observed that decreased miR-181b expression and increased TGFβR1 expression were significantly associated with chemosensitivity to DDP and tumor metastasis in NSCLC patients. Consequently, miR-181b functions as a tumor suppressor and has an important role in proliferation, chemosensitivity to DDP and metastasis of NSCLC by targeting TGFβR1/Smad signaling pathway.
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Carthy JM, Engström U, Heldin CH, Moustakas A. Commercially Available Preparations of Recombinant Wnt3a Contain Non-Wnt Related Activities Which May Activate TGF-β Signaling. J Cell Biochem 2015; 117:938-45. [PMID: 26369756 DOI: 10.1002/jcb.25378] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Accepted: 09/11/2015] [Indexed: 11/06/2022]
Abstract
The Wnt ligands are a family of secreted signaling proteins which play key roles in a number of cellular processes under physiological and pathological conditions. Wnts bind to their membrane receptors and initiate a signaling cascade which leads to the nuclear localization and transcriptional activity of β-catenin. The development of purified recombinant Wnt ligands has greatly aided in our understanding of Wnt signaling and its functions in development and disease. In the current study, we identified non-Wnt related signaling activities which were present in commercially available preparations of recombinant Wnt3a. Specifically, we found that treatment of cultured fibroblasts with recombinant Wnt3a induced immediate activation of TGF-β and BMP signaling and this activity appeared to be independent of the Wnt ligand itself. Therefore, while purified recombinant Wnt ligands continue to be a useful tool for studying this signaling pathway, one must exercise a degree of caution when analyzing the results of experiments that utilize purified recombinant Wnt ligands.
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Affiliation(s)
- Jon M Carthy
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Box 595 Biomedical Center, SE-751 24, Uppsala, Sweden
| | - Ulla Engström
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Box 595 Biomedical Center, SE-751 24, Uppsala, Sweden
| | - Carl-Henrik Heldin
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Box 595 Biomedical Center, SE-751 24, Uppsala, Sweden
| | - Aristidis Moustakas
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Box 595 Biomedical Center, SE-751 24, Uppsala, Sweden.,Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Box 582 Biomedical Center, SE-751 23, Uppsala, Sweden
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50
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Brazil DP, Church RH, Surae S, Godson C, Martin F. BMP signalling: agony and antagony in the family. Trends Cell Biol 2015; 25:249-64. [DOI: 10.1016/j.tcb.2014.12.004] [Citation(s) in RCA: 183] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 12/01/2014] [Accepted: 12/02/2014] [Indexed: 01/14/2023]
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