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Chitsazzadeh V, Nguyen TN, de Mingo Pulido A, Bittencourt BB, Du L, Adelmann CH, Ortiz Rivera I, Nguyen KA, Guerra LD, Davis A, Napoli M, Ma W, Davis RE, Rajapakshe K, Coarfa C, Flores ER, Tsai KY. miR-181a promotes multiple pro-tumorigenic functions through targeting TGFβR3. J Invest Dermatol 2021; 142:1956-1965.e2. [PMID: 34890627 DOI: 10.1016/j.jid.2021.09.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/15/2021] [Accepted: 09/22/2021] [Indexed: 12/25/2022]
Abstract
Cutaneous squamous cell carcinoma (cuSCC) comprises 15-20% of all skin cancers and has a well-defined progression sequence from precancerous actinic keratosis (AK), to invasive cuSCC. In order to identify targets for chemoprevention, we previously reported a cross-species analysis to identify transcriptional drivers of cuSCC development and identified miR-181a as a potential oncomiR. We show that upregulation of miR-181a promotes multiple pro-tumorigenic properties by targeting an understudied component of TGFβ signaling, TGFβR3. miR-181a and TGFβR3 are upregulated and downregulated, respectively, in cuSCC. miR-181a overexpression (OE) and TGFβR3 knockdown (KD) significantly suppresses UV-induced apoptosis in HaCaT cells and in primary normal human epidermal keratinocytes (NHEK). In addition, OE of miR-181a or KD of TGFβR3 by shRNA enhances anchorage-independent survival. miR-181a OE or TGFβR3 KD enhances cellular migration and invasion and upregulation of EMT markers. Luciferase reporter assays demonstrate that miR-181a directly targets the 3'UTR of TGFβR3. miR-181a upregulates pSMAD3 levels following TGFβ2 administration and results in elevated SNAIL and SLUG expression. Finally, we confirm in-vivo, that miR-181a inhibition compromises tumor growth. Importantly, these phenotypes can be reversed with TGFβR3 OE or KD in the context of miR-181a OE or KD, respectively, further highlighting the physiologic relevance of this regulation in cuSCC.
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Affiliation(s)
- Vida Chitsazzadeh
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Tran N Nguyen
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Alvaro de Mingo Pulido
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Bruna B Bittencourt
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Lili Du
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Charles H Adelmann
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ivannie Ortiz Rivera
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Kimberly A Nguyen
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Leah D Guerra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Andrew Davis
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Marco Napoli
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Wencai Ma
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA; Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Richard Eric Davis
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA; Department of Lymphoma-Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Kimal Rajapakshe
- Department of Molecular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Cristian Coarfa
- Department of Molecular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Elsa R Flores
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Kenneth Y Tsai
- Department of Tumor Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA; Department of Pathology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA.
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Kschonsak M, Rougé L, Arthur CP, Hoangdung H, Patel N, Kim I, Johnson MC, Kraft E, Rohou AL, Gill A, Martinez-Martin N, Payandeh J, Ciferri C. Structures of HCMV Trimer reveal the basis for receptor recognition and cell entry. Cell 2021; 184:1232-1244.e16. [PMID: 33626330 DOI: 10.1016/j.cell.2021.01.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/10/2021] [Accepted: 01/21/2021] [Indexed: 01/19/2023]
Abstract
Human cytomegalovirus (HCMV) infects the majority of the human population and represents the leading viral cause of congenital birth defects. HCMV utilizes the glycoproteins gHgLgO (Trimer) to bind to platelet-derived growth factor receptor alpha (PDGFRα) and transforming growth factor beta receptor 3 (TGFβR3) to gain entry into multiple cell types. This complex is targeted by potent neutralizing antibodies and represents an important candidate for therapeutics against HCMV. Here, we determine three cryogenic electron microscopy (cryo-EM) structures of the trimer and the details of its interactions with four binding partners: the receptor proteins PDGFRα and TGFβR3 as well as two broadly neutralizing antibodies. Trimer binding to PDGFRα and TGFβR3 is mutually exclusive, suggesting that they function as independent entry receptors. In addition, Trimer-PDGFRα interaction has an inhibitory effect on PDGFRα signaling. Our results provide a framework for understanding HCMV receptor engagement, neutralization, and the development of anti-viral strategies against HCMV.
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Affiliation(s)
- Marc Kschonsak
- Department of Structural Biology, Genentech, South San Francisco, CA 94080, USA.
| | - Lionel Rougé
- Department of Structural Biology, Genentech, South San Francisco, CA 94080, USA
| | | | - Ho Hoangdung
- Department of Structural Biology, Genentech, South San Francisco, CA 94080, USA
| | - Nidhi Patel
- Department of Structural Biology, Genentech, South San Francisco, CA 94080, USA
| | - Ingrid Kim
- Department of Antibody Engineering, Genentech, South San Francisco, CA 94080, USA
| | - Matthew C Johnson
- Department of Structural Biology, Genentech, South San Francisco, CA 94080, USA
| | - Edward Kraft
- Department of BioMolecular Resources, Genentech, South San Francisco, CA 94080, USA
| | - Alexis L Rohou
- Department of Structural Biology, Genentech, South San Francisco, CA 94080, USA
| | - Avinash Gill
- Department of Antibody Engineering, Genentech, South San Francisco, CA 94080, USA
| | - Nadia Martinez-Martin
- Department of Microchemistry, Proteomics and Lipidomics Department, Genentech, South San Francisco, CA 94080, USA.
| | - Jian Payandeh
- Department of Structural Biology, Genentech, South San Francisco, CA 94080, USA; Department of Antibody Engineering, Genentech, South San Francisco, CA 94080, USA.
| | - Claudio Ciferri
- Department of Structural Biology, Genentech, South San Francisco, CA 94080, USA.
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Amanso AM, Kamalakar A, Bitarafan S, Abramowicz S, Drissi H, Barnett JV, Wood LB, Goudy SL. Osteoinductive effect of soluble transforming growth factor beta receptor 3 on human osteoblast lineage. J Cell Biochem 2021; 122:538-548. [PMID: 33480071 DOI: 10.1002/jcb.29888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 12/10/2020] [Accepted: 12/18/2020] [Indexed: 01/05/2023]
Abstract
The development of bone requires carefully choregraphed signaling to bone progenitors to form bone. Our group recently described the requirement of transforming growth factor beta receptor 3 (TGFβR3), a receptor involved in TGFβ pathway signaling, during osteoblast lineage commitment in mice. The TGFβ pathway is known to play multiple osteo-inductive and osteo-inhibitory roles during osteoblast development and TGFβR3 human mutations are associated with reduced bone mineral density, making TGFβR3 a unique target for bone inductive therapy. In this article, we demonstrated increased mineralization of human pediatric bone-derived osteoblast-like cells (HBO) when treated with soluble TGFβR3 (sR3) using Alizarin Red staining. Osteogenic commitment of HBO cells was demonstrated by induction of osteogenic genes RUNX2, osteocalcin, osteopontin, and osterix. Evaluation of the canonical TGFβ pathway signaling demonstrated that sR3 was able to induce bone formation in HBO cells, mainly through activation of noncanonical targets of TGFβ pathway signaling including AKT, ERK, and p38 MAP kinases. Inhibition of these osteogenic noncanonical pathways in the HBO cells also inhibited mineralization, suggesting they are each required. Although no induction of SMAD1, 5, and 9 was observed, there was the activation of SMAD2 and 3 suggesting that sR3 is primarily signaling via the noncanonical pathways during osteogenic induction of the HBO. Our results highlight the important role of TGFβR3 in osteoblast induction of mineralization in human bone cells through noncanonical targets of TGFβ signaling. Future studies will focus on the ability of sR3 to induce bone regeneration in vivo using animal models.
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Affiliation(s)
| | - Archana Kamalakar
- Department of Otolaryngology, Emory University, Atlanta, Georgia, USA
| | - Sara Bitarafan
- George W. Woodruff School of Mechanical Engineering and Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Shelly Abramowicz
- Division of Oral and Maxillofacial Surgery, Department of Surgery, Emory University, Atlanta, Georgia, USA
| | - Hicham Drissi
- Department of Cell Biology, Emory University, Atlanta, Georgia, USA.,Department of Orthopaedics, Emory University, Atlanta, Georgia, USA.,The Atlanta Veterans Affairs Medical Center, Atlanta, Georgia, USA
| | - Joey Victor Barnett
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee, USA
| | - Levi Benjamin Wood
- George W. Woodruff School of Mechanical Engineering and Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, USA.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - S L Goudy
- Department of Otolaryngology, Emory University, Atlanta, Georgia, USA
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Abstract
During embryogenesis, the epicardium undergoes proliferation, migration, and differentiation into several cardiac cell types which contribute to the coronary vessels. The type III transforming growth factor-β receptor (TGFβR3) is required for epicardial cell invasion and development of coronary vasculature in vivo. Bone Morphogenic Protein-2 (BMP2) is a driver of epicardial cell migration. Utilizing a primary epicardial cell line derived from Tgfbr3(+/+) and Tgfbr3(-/-) mouse embryos, we show that Tgfbr3(-/-) epicardial cells are deficient in BMP2 mRNA expression. Tgfbr3(-/-) epicardial cells are deficient in 2-dimensional migration relative to Tgfbr3(+/+) cells; BMP2 induces cellular migration to Tgfbr3(+/+) levels without affecting proliferation. We further demonstrate that Src kinase activity is required for BMP2 driven Tgfbr3(-/-) migration. BMP2 also requires Src for filamentous actin polymerization in Tgfbr3(-/-) epicardial cells. Taken together, our data identifies a novel pathway in epicardial cell migration required for development of the coronary vessels.
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Affiliation(s)
- Patrick Allison
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, USA,CONTACT Patrick Allison Michigan State University, College of Veterinary Medicine, 784 Wilson Rd, RmG358, East Lansing, MI 48824, USA
| | - Daniella Espiritu
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, USA
| | - Todd D. Camenisch
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, USA,Southwest Environmental Health Sciences Center, University of Arizona, Tucson, AZ, USA,Steele Children's Research Center, University of Arizona, Tucson, AZ, USA,Sarver Heart Center, University of Arizona, Tucson, AZ, USA,Bio5 Institute, University of Arizona, Tucson, AZ, USA
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