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Jussila AR, Haensel D, Gaddam S, Oro AE. Acquisition of Drug Resistance in Basal Cell Nevus Syndrome Tumors through Basal to Squamous Cell Carcinoma Transition. J Invest Dermatol 2024; 144:1368-1377.e6. [PMID: 38157930 PMCID: PMC11116079 DOI: 10.1016/j.jid.2023.10.040] [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: 08/04/2023] [Revised: 09/26/2023] [Accepted: 10/13/2023] [Indexed: 01/03/2024]
Abstract
Although basal cell carcinomas arise from ectopic Hedgehog pathway activation and can be treated with pathway inhibitors, sporadic basal cell carcinomas display high resistance rates, whereas tumors arising in patients with Gorlin syndrome with germline Patched (PTCH1) alterations are uniformly suppressed by inhibitor therapy. In rare cases, patients with Gorlin syndrome on long-term inhibitor therapy will develop individual resistant tumor clones that rapidly progress, but the basis of this resistance remains unstudied. In this study, we report a case of an SMO inhibitor-resistant tumor arising in a patient with Gorlin syndrome on suppressive SMO inhibitor for nearly a decade. Using a combination of multiomics and spatial transcriptomics, we define the tumor populations at the cellular and tissue level to conclude that Gorlin tumors can develop resistance to SMO inhibitors through the previously described basal to squamous cell carcinoma transition. Intriguingly, through spatial whole-exome genomic analysis, we nominate PCYT2, ETNK1, and the phosphatidylethanolamine biosynthetic pathway as genetic suppressors of basal to squamous cell carcinoma transition resistance. These observations provide a general framework for studying tumor evolution and provide important clinical insight into mechanisms of resistance to SMO inhibitors for not only Gorlin syndrome but also sporadic basal cell carcinomas.
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Affiliation(s)
- Anna R Jussila
- Program in Epithelial Biology, Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Daniel Haensel
- Program in Epithelial Biology, Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Sadhana Gaddam
- Program in Epithelial Biology, Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Anthony E Oro
- Program in Epithelial Biology, Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA.
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2
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Miller JS, Bennett NE, Rhoades JA. Targeting hedgehog-driven mechanisms of drug-resistant cancers. Front Mol Biosci 2023; 10:1286090. [PMID: 37954979 PMCID: PMC10634604 DOI: 10.3389/fmolb.2023.1286090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/09/2023] [Indexed: 11/14/2023] Open
Abstract
Due to the cellular plasticity that is inherent to cancer, the acquisition of resistance to therapy remains one of the biggest obstacles to patient care. In many patients, the surviving cancer cell subpopulation goes on to proliferate or metastasize, often as the result of dramatically altered cell signaling and transcriptional pathways. A notable example is the Hedgehog (Hh) signaling pathway, which is a driver of several cancer subtypes and aberrantly activated in a wide range of malignancies in response to therapy. This review will summarize the field's current understanding of the many roles played by Hh signaling in drug resistance and will include topics such as non-canonical activation of Gli proteins, amplification of genes which promote tolerance to chemotherapy, the use of hedgehog-targeted drugs and tool compounds, and remaining gaps in our knowledge of the transcriptional mechanisms at play.
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Affiliation(s)
- Jade S. Miller
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
- Pharmacology Training Program, Department of Pharmacology, Vanderbilt University, Nashville, TN, United States
- Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Veterans Affairs, Nashville VA Medical Center, Tennessee Valley Healthcare System, Nashville, TN, United States
| | - Natalie E. Bennett
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
- Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Veterans Affairs, Nashville VA Medical Center, Tennessee Valley Healthcare System, Nashville, TN, United States
- Program in Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Julie A. Rhoades
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
- Pharmacology Training Program, Department of Pharmacology, Vanderbilt University, Nashville, TN, United States
- Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Veterans Affairs, Nashville VA Medical Center, Tennessee Valley Healthcare System, Nashville, TN, United States
- Program in Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, United States
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3
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Yang Y, Gomez N, Infarinato N, Adam RC, Sribour M, Baek I, Laurin M, Fuchs E. The pioneer factor SOX9 competes for epigenetic factors to switch stem cell fates. Nat Cell Biol 2023; 25:1185-1195. [PMID: 37488435 PMCID: PMC10415178 DOI: 10.1038/s41556-023-01184-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 06/08/2023] [Indexed: 07/26/2023]
Abstract
During development, progenitors simultaneously activate one lineage while silencing another, a feature highly regulated in adult stem cells but derailed in cancers. Equipped to bind cognate motifs in closed chromatin, pioneer factors operate at these crossroads, but how they perform fate switching remains elusive. Here we tackle this question with SOX9, a master regulator that diverts embryonic epidermal stem cells (EpdSCs) into becoming hair follicle stem cells. By engineering mice to re-activate SOX9 in adult EpdSCs, we trigger fate switching. Combining epigenetic, proteomic and functional analyses, we interrogate the ensuing chromatin and transcriptional dynamics, slowed temporally by the mature EpdSC niche microenvironment. We show that as SOX9 binds and opens key hair follicle enhancers de novo in EpdSCs, it simultaneously recruits co-factors away from epidermal enhancers, which are silenced. Unhinged from its normal regulation, sustained SOX9 subsequently activates oncogenic transcriptional regulators that chart the path to cancers typified by constitutive SOX9 expression.
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Affiliation(s)
- Yihao Yang
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
| | - Nicholas Gomez
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
- Allen Institute for Cell Sciences, Seattle, WA, USA
| | - Nicole Infarinato
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
- PRECISIONscientia, Yardley, PA, USA
| | - Rene C Adam
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
- Regeneron Pharmaceuticals, Tarrytown, NY, USA
| | - Megan Sribour
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
| | - Inwha Baek
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
- Kyung Hee University, Seoul, South Korea
| | - Mélanie Laurin
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
- CHU de Québec-Université Laval Research Center, Quebec City, Quebec, Canada
| | - Elaine Fuchs
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA.
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4
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Jussila AR, Haensel D, Gaddam S, Oro AE. Acquisition of drug resistance in basal cell nevus syndrome tumors through basal to squamous cell carcinoma transition. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.26.550719. [PMID: 37546976 PMCID: PMC10402087 DOI: 10.1101/2023.07.26.550719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
While basal cell carcinomas (BCCs) arise from ectopic hedgehog pathway activation and can be treated with pathway inhibitors, sporadic BCCs display high resistance rates while tumors arising in Gorlin syndrome patients with germline Patched ( PTCH1 ) mutations are uniformly suppressed by inhibitor therapy. In rare cases, Gorlin syndrome patients on long-term inhibitor therapy will develop individual resistant tumor clones that rapidly progress, but the basis of this resistance remains unstudied. Here we report a case of an SMO i -resistant tumor arising in a Gorlin patient on suppressive SMO i for nearly a decade. Using a combination of multi-omics and spatial transcriptomics, we define the tumor populations at the cellular and tissue level to conclude that Gorlin tumors can develop resistance to SMO i through the previously described basal to squamous cell carcinoma transition (BST). Intriguingly, through spatial whole exome genomic analysis, we nominate PCYT2, ETNK1, and the phosphatidylethanolamine biosynthetic pathway as novel genetic suppressors of BST resistance. These observations provide a general framework for studying tumor evolution and provide important clinical insight into mechanisms of resistance to SMO i for not only Gorlin syndrome but sporadic BCCs as well.
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5
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Cheng C, Cong Q, Liu Y, Hu Y, Liang G, Dioneda KMM, Yang Y. Yap controls notochord formation and neural tube patterning by integrating mechanotransduction with FoxA2 and Shh expression. SCIENCE ADVANCES 2023; 9:eadf6927. [PMID: 37315133 PMCID: PMC10266736 DOI: 10.1126/sciadv.adf6927] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 05/04/2023] [Indexed: 06/16/2023]
Abstract
Correct notochord and neural tube (NT) formation is crucial to the development of the central nervous system and midline structures. Integrated biochemical and biophysical signaling controls embryonic growth and patterning; however, the underlying mechanisms remain poorly understood. Here, we took the opportunities of marked morphological changes during notochord and NT formation and identified both necessary and sufficient roles of Yap, a key mechanosensor and mechanotransducer, in biochemical signaling activation during formation of notochord and floor plate, the ventral signaling centers that pattern the dorsal-ventral axis of NT and the surrounding tissues. We showed that Yap activation by a gradient of mechanical stress and tissue stiffness in the notochord and ventral NT induces FoxA2 and Shh expression. Hedgehog signaling activation rescued NT patterning defects caused by Yap deficiency, but not notochord formation. Therefore, mechanotransduction via Yap activation acts in feedforward mechanisms to induce FoxA2 expression for notochord formation and activate Shh expression for floor plate induction by synergistically interacting with FoxA2.
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Affiliation(s)
| | | | - Yuchen Liu
- Department of Developmental Biology, Harvard School of Dental Medicine, Harvard Stem Cell Institute, 188 Longwood Ave., Boston, MA 02115, USA
| | - Yizhong Hu
- Department of Developmental Biology, Harvard School of Dental Medicine, Harvard Stem Cell Institute, 188 Longwood Ave., Boston, MA 02115, USA
| | - Guoyan Liang
- Department of Developmental Biology, Harvard School of Dental Medicine, Harvard Stem Cell Institute, 188 Longwood Ave., Boston, MA 02115, USA
| | - Kevin Marc Manquiquis Dioneda
- Department of Developmental Biology, Harvard School of Dental Medicine, Harvard Stem Cell Institute, 188 Longwood Ave., Boston, MA 02115, USA
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Kurokami Y, Ishitsuka Y, Kiyohara E, Tanemura A, Fujimoto M. c-FOS Expression in Metastatic Basal Cell Carcinoma with Spontaneous Basosquamous Transition. Acta Derm Venereol 2023; 103:adv5347. [PMID: 36994778 PMCID: PMC10108615 DOI: 10.2340/actadv.v103.5347] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/10/2023] [Indexed: 03/31/2023] Open
Abstract
Abstract is missing (Short communication)
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Affiliation(s)
- Yu Kurokami
- Department of Dermatology, Faculty of Medicine, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, Japan
| | - Yosuke Ishitsuka
- Department of Dermatology, Faculty of Medicine, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, Japan.
| | - Eiji Kiyohara
- Department of Dermatology, Faculty of Medicine, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, Japan
| | - Atsushi Tanemura
- Department of Dermatology, Faculty of Medicine, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Faculty of Medicine, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, Japan
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Wu A, Turner KA, Woolfson A, Jiang X. The Hedgehog Pathway as a Therapeutic Target in Chronic Myeloid Leukemia. Pharmaceutics 2023; 15:pharmaceutics15030958. [PMID: 36986819 PMCID: PMC10053130 DOI: 10.3390/pharmaceutics15030958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/08/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
Despite the development of therapeutic agents that selectively target cancer cells, relapse driven by acquired drug resistance and resulting treatment failure remains a significant issue. The highly conserved Hedgehog (HH) signaling pathway performs multiple roles in both development and tissue homeostasis, and its aberrant regulation is known to drive the pathogenesis of numerous human malignancies. However, the role of HH signaling in mediating disease progression and drug resistance remains unclear. This is especially true for myeloid malignancies. The HH pathway, and in particular the protein Smoothened (SMO), has been shown to be essential for regulating stem cell fate in chronic myeloid leukemia (CML). Evidence suggests that HH pathway activity is critical for maintaining the drug-resistant properties and survival of CML leukemic stem cells (LSCs), and that dual inhibition of BCR-ABL1 and SMO may comprise an effective therapeutic strategy for the eradication of these cells in patients. This review will explore the evolutionary origins of HH signaling, highlighting its roles in development and disease, which are mediated by canonical and non-canonical HH signaling. Development of small molecule inhibitors of HH signaling and clinical trials using these inhibitors as therapeutic agents in cancer and their potential resistance mechanisms, are also discussed, with a focus on CML.
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Affiliation(s)
- Andrew Wu
- Terry Fox Laboratory, British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada
- Interdisciplinary Oncology, Department of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Kelly A. Turner
- Terry Fox Laboratory, British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Adrian Woolfson
- Replay Holdings Inc., 5555 Oberlin Drive, San Diego, CA 92121, USA
| | - Xiaoyan Jiang
- Terry Fox Laboratory, British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada
- Interdisciplinary Oncology, Department of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Correspondence:
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Dilower I, Niloy AJ, Kumar V, Kothari A, Lee EB, Rumi MAK. Hedgehog Signaling in Gonadal Development and Function. Cells 2023; 12:cells12030358. [PMID: 36766700 PMCID: PMC9913308 DOI: 10.3390/cells12030358] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
Three distinct hedgehog (HH) molecules, (sonic, desert, and indian), two HH receptors (PTCH1 and PTCH2), a membrane bound activator (SMO), and downstream three transcription factors (GLI1, GLI2, and GLI3) are the major components of the HH signaling. These signaling molecules were initially identified in Drosophila melanogaster. Later, it has been found that the HH system is highly conserved across species and essential for organogenesis. HH signaling pathways play key roles in the development of the brain, face, skeleton, musculature, lungs, and gastrointestinal tract. While the sonic HH (SHH) pathway plays a major role in the development of the central nervous system, the desert HH (DHH) regulates the development of the gonads, and the indian HH (IHH) acts on the development of bones and joints. There are also overlapping roles among the HH molecules. In addition to the developmental role of HH signaling in embryonic life, the pathways possess vital physiological roles in testes and ovaries during adult life. Disruption of DHH and/or IHH signaling results in ineffective gonadal steroidogenesis and gametogenesis. While DHH regulates the male gonadal functions, ovarian functions are regulated by both DHH and IHH. This review article focuses on the roles of HH signaling in gonadal development and reproductive functions with an emphasis on ovarian functions. We have acknowledged the original research work that initially reported the findings and discussed the subsequent studies that have further analyzed the role of HH signaling in testes and ovaries.
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Molecular Mechanisms and Targeted Therapies of Advanced Basal Cell Carcinoma. Int J Mol Sci 2022; 23:ijms231911968. [PMID: 36233269 PMCID: PMC9570397 DOI: 10.3390/ijms231911968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/18/2022] [Accepted: 09/19/2022] [Indexed: 11/23/2022] Open
Abstract
Among human cutaneous malignancies, basal cell carcinoma is the most common. Solid advances in unveiling the molecular mechanisms of basal cell carcinoma have emerged in recent years. In Gorlin syndrome, which shows basal cell carcinoma predisposition, identification of the patched 1 gene (PTCH1) mutation was a dramatic breakthrough in understanding the carcinogenesis of basal cell carcinoma. PTCH1 plays a role in the hedgehog pathway, and dysregulations of this pathway are known to be crucial for the carcinogenesis of many types of cancers including sporadic as well as hereditary basal cell carcinoma. In this review, we summarize the clinical features, pathological features and hedgehog pathway as applied in basal cell carcinoma. Other crucial molecules, such as p53 and melanocortin-1 receptor are also discussed. Due to recent advances, therapeutic strategies based on the precise molecular mechanisms of basal cell carcinoma are emerging. Target therapies and biomarkers are also discussed.
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Modulation of Hedgehog Signaling for the Treatment of Basal Cell Carcinoma and the Development of Preclinical Models. Biomedicines 2022; 10:biomedicines10102376. [PMID: 36289637 PMCID: PMC9598418 DOI: 10.3390/biomedicines10102376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/17/2022] [Accepted: 09/20/2022] [Indexed: 11/17/2022] Open
Abstract
Basal Cell Carcinoma (BCC) is the most commonly diagnosed cancer worldwide. While the survivability of BCC is high, many patients are excluded from clinically available treatments due to health risks or personal choice. Further, patients with advanced or metastatic disease have severely limited treatment options. The dysregulation of the Hedgehog (Hh) signaling cascade drives onset and progression of BCC. As such, the modulation of this pathway has driven advancements in BCC research. In this review, we focus firstly on inhibitors that target the Hh pathway as chemotherapeutics against BCC. Two therapies targeting Hh signaling have been made clinically available for BCC patients, but these treatments suffer from limited initial efficacy and a high rate of chemoresistant tumor recurrence. Herein, we describe more recent developments of chemical scaffolds that have been designed to hopefully improve upon the available therapeutics. We secondly discuss the history and recent efforts involving modulation of the Hh genome as a method of producing in vivo models of BCC for preclinical research. While there are many advancements left to be made towards improving patient outcomes with BCC, it is clear that targeting the Hh pathway will remain at the forefront of research efforts in designing more effective chemotherapeutics as well as relevant preclinical models.
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Jaiswal A, Singh R. Homeostases of epidermis and hair follicle, and development of basal cell carcinoma. Biochim Biophys Acta Rev Cancer 2022; 1877:188795. [PMID: 36089203 DOI: 10.1016/j.bbcan.2022.188795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/10/2022] [Accepted: 09/03/2022] [Indexed: 10/14/2022]
Abstract
Hedgehog signaling (Hh) plays a critical role in embryogenesis. On the other hand, its overactivity may cause basal cell carcinoma (BCC), the most common human cancer. Further, epidermal and hair follicle homeostases may have a key role in the development of BCC. This article describes the importance of different signaling pathways in the different stages of the two processes. The description of the homeostases brought up the importance of the Notch signaling along with the sonic hedgehog (Shh) and the Wnt pathways. Loss of the Notch signaling adversely affects the late stages of hair follicle formation and allows the bulge cells in the hair follicles to take the fate of the keratinocytes in the interfollicular epidermis. Further, the loss of Notch activity upregulates the Shh and Wnt activities, adversely affecting the homeostases. Notably, the Notch signaling is suppressed in BCC, and the peripheral BCC cells, which have low Notch activity, show drug resistance in comparison to the interior suprabasal BCC cells, which have high Notch activity.
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Affiliation(s)
- Alok Jaiswal
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Raghvendra Singh
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
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Gaviria Agudelo C, Restrepo LM. Human Skin Cancer: an Overview Of Animal, Ex Vivo, and In Vitro Models. CURRENT DERMATOLOGY REPORTS 2022. [DOI: 10.1007/s13671-022-00361-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Pawar S, Kutay U. The Diverse Cellular Functions of Inner Nuclear Membrane Proteins. Cold Spring Harb Perspect Biol 2021; 13:a040477. [PMID: 33753404 PMCID: PMC8411953 DOI: 10.1101/cshperspect.a040477] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The nuclear compartment is delimited by a specialized expanded sheet of the endoplasmic reticulum (ER) known as the nuclear envelope (NE). Compared to the outer nuclear membrane and the contiguous peripheral ER, the inner nuclear membrane (INM) houses a unique set of transmembrane proteins that serve a staggering range of functions. Many of these functions reflect the exceptional position of INM proteins at the membrane-chromatin interface. Recent research revealed that numerous INM proteins perform crucial roles in chromatin organization, regulation of gene expression, genome stability, and mediation of signaling pathways into the nucleus. Other INM proteins establish mechanical links between chromatin and the cytoskeleton, help NE remodeling, or contribute to the surveillance of NE integrity and homeostasis. As INM proteins continue to gain prominence, we review these advancements and give an overview on the functional versatility of the INM proteome.
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Affiliation(s)
- Sumit Pawar
- Institute of Biochemistry, Department of Biology, ETH Zurich, 8093 Zurich, Switzerland
| | - Ulrike Kutay
- Institute of Biochemistry, Department of Biology, ETH Zurich, 8093 Zurich, Switzerland
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Patel AD, Ravichandran S, Kheterpal M. Hedgehog inhibitors with and without adjunctive therapy in treatment of locally advanced basal cell carcinoma. Int J Dermatol 2021; 61:118-124. [PMID: 34423419 DOI: 10.1111/ijd.15836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/23/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Hedgehog inhibitor therapy (HHIT) is considered first-line treatment for locally advanced, unresectable basal cell carcinoma (laBCC). HHIT often results in a partial response, which requires adjunctive therapy (AT) post HHIT. We present real-world data for laBCCs undergoing HHIT ± AT. METHODS Retrospective review at Duke University from 11/01/2007 through 5/20/2020 revealed 13 patients treated with systemic HHIT (sonidegib or vismodegib) for laBCC. RESULTS Fourteen laBCCs were identified in 13 patients. LaBCCs were treated with sonidegib (n = 10, 71%) or vismodegib (n = 4, 29%) for a median (IQR) of 9.4 (9.3) or 9.8 (8.5) months, respectively. The median (IQR) follow-up time from HHIT initiation was 15.5 (8.7) months. Tumors were most often located on the trunk (43%), followed by head and neck (29%), extremities (21%), and orbit/periorbital area (7%). Nine laBCCs (64%) were treated with HHIT alone, of which five (36%) achieved complete response (CR), four (29%) achieved partial response (PR), and five (36%) achieved CR with combined HHIT and AT post-HHIT. Duration of HHIT treatment (IQR) was 7.5 (3.5) months in the 10 CR patients, versus 15.1 (6.3) months in the four PR patients (P = 0.024). Nine patients (69%) experienced adverse events from HHIT, most commonly ageusia/dysgeusia, muscle spasms, and alopecia. CONCLUSION As a single institutional experience, we report 10/14 laBCCs (71%) with CRs without recurrence and 4/14 laBCCs (29%) with PRs with HHIT ± AT over median follow-up of 15.5 months. Longer follow-up and larger cohorts evaluating responses with HHIT followed by AT are needed to substantiate our findings.
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Affiliation(s)
- Akash D Patel
- School of Medicine, Duke University, Durham, NC, USA
| | | | - Meenal Kheterpal
- Department of Dermatology, Duke University School of Medicine, Durham, NC, USA
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15
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Genome-Wide Expression Difference of MicroRNAs in Basal Cell Carcinoma. J Immunol Res 2021; 2021:7223500. [PMID: 34395634 PMCID: PMC8357504 DOI: 10.1155/2021/7223500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/22/2021] [Indexed: 12/13/2022] Open
Abstract
Distinct expression of the miRNAs has rarely been explored in basal cell carcinoma (BCC) of skin, and the regulatory role of miRNAs in BCC development remains quite opaque. Here, we collected control tissues from adjacent noncancerous skin (n = 15; control group) and tissues at tumor centers from patients with cheek BCC (n = 15; BCC group) using punch biopsies. After six small RNA sequencing- (sRNA-seq-) based miRNA expression profiles were generated for both BCC and controls, including three biological replicates, we conducted comparative analysis on the sRNA-seq dataset, discovering 181 differentially expressed miRNAs (DEMs) out of the 1,873 miRNAs in BCCs. In order to validate the sRNA-seq data, expression of 15 randomly selected DEMs was measured using the TaqMan probe-based quantitative real-time PCR. Functional analysis of predicted target genes of DEMs in BCCs shows that these miRNAs are primarily involved in various types of cancers, immune response, epithelial growth, and morphogenesis, as well as energy production and metabolism, indicating that BCC development is caused, at least in part, by changes in miRNA regulation for biological and disease processes. In particular, the “basal cell carcinoma pathways” were found to be enriched by predicted DEM targets, and regulatory relationships between DEMs and their targeted genes in this pathway were further uncovered. These results revealed the association between BCCs and abundant miRNA molecules that regulate target genes, functional modules, and signaling pathways in carcinogenesis.
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Patel H, Joshi J, Raval A, Shah F. Identification of Natural Compounds to Inhibit Sonic Hedgehog Pathway in Oral Cancer. Anticancer Agents Med Chem 2021; 22:905-913. [PMID: 34238174 DOI: 10.2174/1871520621666210708100747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 05/21/2021] [Accepted: 05/30/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Conventional treatment resistance remains a significant problem in cancer care. Cancer stem cells might play a major role in treatment resistance, and as a result, basic stem cell pathways are instrumental in cancer. Sonic Hedgehog signaling has not been widely studied in oral cancer, and being one of the major cancer stem cell pathways, targeting it with natural compounds could open many opportunities in the treatment scenario. OBJECTIVE The objective of the study was to identify the role of various natural compounds as an anti-cancer agent for oral cancer by targeting the Hedgehog signaling pathway. METHODS The selection of natural compounds were identified through literature review and NPACT database. The protein (3M1N and 3MXW) and ligand molecules were retrieved through the PDB and PubChem database. To carry out docking experiments, the AutoDock 4.2 program was used to study the interaction between the identified protein and ligand. RESULTS Among the 13 identified natural compounds, the top three were selected based on their binding energy. The higher the binding energy on the negative side, the better the interaction formed between protein and ligand. The natural compound showing best results with 3M1N protein were Butein, Biochanin-A, and Curcumin, whereas, with 3MXW, Zerumbone, Curcumin, and Butein were identified. CONCLUSION The identified natural compounds have shown better binding energy to bind the Hh ligands in the absence/presence of a known Sonic Hedgehog inhibitor. Based on the results, natural compounds can be utilized in the current treatment modality for oral cancer either as an individual anti-cancer agent or in combination with the known Sonic Hedgehog inhibitor to curb the increasing incidence rate. Yet, in-vitro evidence in lab setup is required.
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Affiliation(s)
- Hitarth Patel
- Stem Cell Biology Lab, Department of Cancer Biology, The Gujarat Cancer and Research Institute, Ahmedabad, Gujarat, India
| | - Jigna Joshi
- Stem Cell Biology Lab, Department of Cancer Biology, The Gujarat Cancer and Research Institute, Ahmedabad, Gujarat, India
| | - Apexa Raval
- Stem Cell Biology Lab, Department of Cancer Biology, The Gujarat Cancer and Research Institute, Ahmedabad, Gujarat, India
| | - Franky Shah
- Stem Cell Biology Lab, Department of Cancer Biology, The Gujarat Cancer and Research Institute, Ahmedabad, Gujarat, India
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Kash N, Silapunt S. A review of emerging and non-US FDA-approved topical agents for the treatment of basal cell carcinoma. Future Oncol 2021; 17:3111-3132. [PMID: 34156307 DOI: 10.2217/fon-2020-1147] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Although surgical therapy continues to be the gold standard for the treatment of basal cell carcinoma given high cure rates and the ability to histologically confirm tumor clearance, there are a number of nonsurgical treatment options that may be considered based on individual tumor characteristics, functional and cosmetic considerations, patient comorbidities and patient preference. Topical 5-fluorouracil 5% cream and imiquimod 5% cream have been US FDA-approved for the treatment of superficial basal cell carcinoma. Additionally, a number of new and emerging topical agents and techniques have been described for the treatment of basal cell carcinoma and will be reviewed herein.
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Affiliation(s)
- Natalie Kash
- Department of Dermatology, Kansas City University-Graduate Medical Education Consortium/Advanced Dermatology & Cosmetic Surgery Orlando Program, Maitland, FL 32751, USA
| | - Sirunya Silapunt
- Department of Dermatology, University of Texas McGovern Medical School at Houston, Houston, TX 77030, USA
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18
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Dias Gomes M, Iden S. Orchestration of tissue-scale mechanics and fate decisions by polarity signalling. EMBO J 2021; 40:e106787. [PMID: 33998017 PMCID: PMC8204866 DOI: 10.15252/embj.2020106787] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 02/06/2023] Open
Abstract
Eukaryotic development relies on dynamic cell shape changes and segregation of fate determinants to achieve coordinated compartmentalization at larger scale. Studies in invertebrates have identified polarity programmes essential for morphogenesis; however, less is known about their contribution to adult tissue maintenance. While polarity-dependent fate decisions in mammals utilize molecular machineries similar to invertebrates, the hierarchies and effectors can differ widely. Recent studies in epithelial systems disclosed an intriguing interplay of polarity proteins, adhesion molecules and mechanochemical pathways in tissue organization. Based on major advances in biophysics, genome editing, high-resolution imaging and mathematical modelling, the cell polarity field has evolved to a remarkably multidisciplinary ground. Here, we review emerging concepts how polarity and cell fate are coupled, with emphasis on tissue-scale mechanisms, mechanobiology and mammalian models. Recent findings on the role of polarity signalling for tissue mechanics, micro-environmental functions and fate choices in health and disease will be summarized.
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Affiliation(s)
- Martim Dias Gomes
- CECAD Cluster of ExcellenceUniversity of CologneCologneGermany
- Cell and Developmental BiologyFaculty of MedicineCenter of Human and Molecular Biology (ZHMB)Saarland UniversityHomburgGermany
| | - Sandra Iden
- CECAD Cluster of ExcellenceUniversity of CologneCologneGermany
- Cell and Developmental BiologyFaculty of MedicineCenter of Human and Molecular Biology (ZHMB)Saarland UniversityHomburgGermany
- CMMCUniversity of CologneCologneGermany
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19
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Avery JT, Zhang R, Boohaker RJ. GLI1: A Therapeutic Target for Cancer. Front Oncol 2021; 11:673154. [PMID: 34113570 PMCID: PMC8186314 DOI: 10.3389/fonc.2021.673154] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/30/2021] [Indexed: 12/11/2022] Open
Abstract
GLI1 is a transcriptional effector at the terminal end of the Hedgehog signaling (Hh) pathway and is tightly regulated during embryonic development and tissue patterning/differentiation. GLI1 has low-level expression in differentiated tissues, however, in certain cancers, aberrant activation of GLI1 has been linked to the promotion of numerous hallmarks of cancer, such as proliferation, survival, angiogenesis, metastasis, metabolic rewiring, and chemotherapeutic resistance. All of these are driven, in part, by GLI1’s role in regulating cell cycle, DNA replication and DNA damage repair processes. The consequences of GLI1 oncogenic activity, specifically the activity surrounding DNA damage repair proteins, such as NBS1, and cell cycle proteins, such as CDK1, can be linked to tumorigenesis and chemoresistance. Therefore, understanding the underlying mechanisms driving GLI1 dysregulation can provide prognostic and diagnostic biomarkers to identify a patient population that would derive therapeutic benefit from either direct inhibition of GLI1 or targeted therapy towards proteins downstream of GLI1 regulation.
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Affiliation(s)
- Justin T Avery
- Oncology Department, Drug Discovery Division, Southern Research, Birmingham, AL, United States
| | - Ruowen Zhang
- Department of Medicine, Stony Brook University, Stony Brook, NY, United States
| | - Rebecca J Boohaker
- Oncology Department, Drug Discovery Division, Southern Research, Birmingham, AL, United States
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20
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Abstract
Comprehensive genomic studies of meningioma have offered important insights about the molecular mechanisms underlying this common brain tumor. The use of next-generation sequencing techniques has identified driver mutations in approximately 80% of benign sporadic lesions, as well as epigenetic, regulatory, and copy number events that are associated with formation and disease progression. The events described to date fall into five mutually exclusive molecular subgroups that correlate with tumor location and embryological origin. Importantly, these subgroups also carry implications for clinical management, as they are predictive of histologic subtype and the likelihood of progression. Further work is necessary to understand the molecular mechanisms by which identified mutations drive tumorigenesis as well as the genomic pathways that transform benign lesions into malignancies. Progress made during the past decade has opened the door to potential molecular therapies as well as integration of meningioma genotyping data into clinical management decisions. Several pharmacologic trials are currently underway that leverage recent genomic findings to target established oncogenic pathways in refractory tumors. With the combined efforts of physicians and basic science investigators, the clinical management of meningioma will continue to make important strides in the coming years.
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21
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Ishitsuka Y, Hanaoka Y, Tanemura A, Fujimoto M. Cutaneous Squamous Cell Carcinoma in the Age of Immunotherapy. Cancers (Basel) 2021; 13:1148. [PMID: 33800195 PMCID: PMC7962464 DOI: 10.3390/cancers13051148] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/11/2022] Open
Abstract
Cutaneous squamous cell carcinoma (cSCC) is the second most prevalent skin cancer globally. Because most cSCC cases are manageable by local excision/radiotherapy and hardly become life-threatening, they are often excluded from cancer registries in most countries. Compared with cutaneous melanoma that originates from the melanin-producing, neural crest-derived epidermal resident, keratinocyte (KC)-derived cancers are influenced by the immune system with regards to their pathogenetic behaviour. Congenital or acquired immunosurveillance impairments compromise tumoricidal activity and raises cSCC incidence rates. Intriguingly, expanded applications of programmed death-1 (PD-1) blockade therapies have revealed cSCC to be one of the most amenable targets, particularly when compared with the mucosal counterparts arisen in the esophagus or the cervix. The clinical observation reminds us that cutaneous tissue has a peculiarly high immunogenicity that can evoke tumoricidal recall responses topically. Here we attempt to redefine cSCC biology and review current knowledge about cSCC from multiple viewpoints that involve epidemiology, clinicopathology, molecular genetics, molecular immunology, and developmental biology. This synthesis not only underscores the primal importance of the immune system, rather than just a mere accumulation of ultraviolet-induced mutations but also reinforces the following hypothesis: PD-1 blockade effectively restores the immunity specially allowed to exist within the fully cornified squamous epithelium, that is, the epidermis.
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Affiliation(s)
- Yosuke Ishitsuka
- Department of Dermatology Integrated Medicine, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; (Y.H.); (A.T.); (M.F.)
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22
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Reichrath J, Reichrath S. The Impact of Notch Signaling for Carcinogenesis and Progression of Nonmelanoma Skin Cancer: Lessons Learned from Cancer Stem Cells, Tumor Angiogenesis, and Beyond. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1287:123-154. [PMID: 33034030 DOI: 10.1007/978-3-030-55031-8_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Since many decades, nonmelanoma skin cancer (NMSCs) is the most common malignancy worldwide. Basal cell carcinomas (BCC) and squamous cell carcinomas (SCC) are the major types of NMSCs, representing approximately 70% and 25% of these neoplasias, respectively. Because of their continuously rising incidence rates, NMSCs represent a constantly increasing global challenge for healthcare, although they are in most cases nonlethal and curable (e.g., by surgery). While at present, carcinogenesis of NMSC is still not fully understood, the relevance of genetic and molecular alterations in several pathways, including evolutionary highly conserved Notch signaling, has now been shown convincingly. The Notch pathway, which was first developed during evolution in metazoans and that was first discovered in fruit flies (Drosophila melanogaster), governs cell fate decisions and many other fundamental processes that are of high relevance not only for embryonic development, but also for initiation, promotion, and progression of cancer. Choosing NMSC as a model, we give in this review a brief overview on the interaction of Notch signaling with important oncogenic and tumor suppressor pathways and on its role for several hallmarks of carcinogenesis and cancer progression, including the regulation of cancer stem cells, tumor angiogenesis, and senescence.
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Affiliation(s)
- Jörg Reichrath
- Department of Dermatology, Saarland University Medical Center, Homburg, Germany.
| | - Sandra Reichrath
- Department of Dermatology, Saarland University Medical Center, Homburg, Germany.,School of Health Professions, Saarland University Medical Center, Homburg, Germany
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23
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Fania L, Didona D, Morese R, Campana I, Coco V, Di Pietro FR, Ricci F, Pallotta S, Candi E, Abeni D, Dellambra E. Basal Cell Carcinoma: From Pathophysiology to Novel Therapeutic Approaches. Biomedicines 2020; 8:biomedicines8110449. [PMID: 33113965 PMCID: PMC7690754 DOI: 10.3390/biomedicines8110449] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/16/2020] [Accepted: 10/17/2020] [Indexed: 12/13/2022] Open
Abstract
Basal cell carcinoma (BCC) is the most common human cancer worldwide, and is a subtype of nonmelanoma skin cancer, characterized by a constantly increasing incidence due to an aging population and widespread sun exposure. Although the mortality from BCC is negligible, this tumor can be associated with significant morbidity and cost. This review presents a literature overview of BCC from pathophysiology to novel therapeutic approaches. Several histopathological BCC subtypes with different prognostic values have been described. Dermoscopy and, more recently, reflectance confocal microscopy have largely improved BCC diagnosis. Although surgery is the first-line treatment for localized BCC, other nonsurgical local treatment options are available. BCC pathogenesis depends on the interaction between environmental and genetic characteristics of the patient. Specifically, an aberrant activation of Hedgehog signaling pathway is implicated in its pathogenesis. Notably, Hedgehog signaling inhibitors, such as vismodegib and sonidegib, are successfully used as targeted treatment for advanced or metastatic BCC. Furthermore, the implementation of prevention measures has demonstrated to be useful in the patient management.
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Affiliation(s)
- Luca Fania
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
- Correspondence:
| | - Dario Didona
- Department of Dermatology and Allergology, Philipps University, 35043 Marburg, Germany;
| | - Roberto Morese
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
| | - Irene Campana
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
| | - Valeria Coco
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
| | - Francesca Romana Di Pietro
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
| | - Francesca Ricci
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
| | - Sabatino Pallotta
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
| | - Eleonora Candi
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1, 00133 Rome, Italy
| | - Damiano Abeni
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
| | - Elena Dellambra
- Istituto Dermopatico dell’Immacolata-IRCCS, via dei Monti di Creta 104, 00167 Rome, Italy; (R.M.); (I.C.); (V.C.); (F.R.D.P.); (F.R.); (S.P.); (E.C.); (D.A.); (E.D.)
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24
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Lu YB, Sun TJ, Chen YT, Cai ZY, Zhao JY, Miao F, Yang YN, Wang SX. Targeting the Epithelial-to-Mesenchymal Transition in Cancer Stem Cells for a Better Clinical Outcome of Glioma. Technol Cancer Res Treat 2020; 19:1533033820948053. [PMID: 33089751 PMCID: PMC7586027 DOI: 10.1177/1533033820948053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Glioma is one of the most common malignant tumors of the central nervous system with a poor prognosis at present due to lack of effective treatment options. Its initiation, migration, and multipotency are affected by cancer stem cell’s transition. Previous studies imply that changes in the cancer stem cells can affect the malignant differentiation of the tumor. We found that the epithelial-to-mesenchymal transition (EMT)-related regulatory pathway is an important target for tumor therapy. In this review, we discuss the transition factor of EMT and 3 specific pathways that affect the EMT of cancer stem cells during tumor development. We conclude that targeting the EMT process of cancer stem cells can be a feasible approach in the treatment of glioma.
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Affiliation(s)
- Yu-Bao Lu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China.,*Both authors contributed equally to this study and share first authorship
| | - Tian-Jiao Sun
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China.,*Both authors contributed equally to this study and share first authorship
| | - Yu-Tong Chen
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Zong-Yan Cai
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Jia-Yu Zhao
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Feng Miao
- Zhangye People's Hospital Affiliated to Hexi University, Zhangye, Gansu, China
| | - Yong-Na Yang
- Department of Neurology, The First People's Hospital of Lanzhou City, Lanzhou, Gansu, China
| | - Shi-Xin Wang
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, China
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25
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Phan QM, Fine GM, Salz L, Herrera GG, Wildman B, Driskell IM, Driskell RR. Lef1 expression in fibroblasts maintains developmental potential in adult skin to regenerate wounds. eLife 2020; 9:e60066. [PMID: 32990218 PMCID: PMC7524549 DOI: 10.7554/elife.60066] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/09/2020] [Indexed: 12/28/2022] Open
Abstract
Scars are a serious health concern for burn victims and individuals with skin conditions associated with wound healing. Here, we identify regenerative factors in neonatal murine skin that transforms adult skin to regenerate instead of only repairing wounds with a scar, without perturbing development and homeostasis. Using scRNA-seq to probe unsorted cells from regenerating, scarring, homeostatic, and developing skin, we identified neonatal papillary fibroblasts that form a transient regenerative cell type that promotes healthy skin regeneration in young skin. These fibroblasts are defined by the expression of a canonical Wnt transcription factor Lef1 and using gain- and loss of function genetic mouse models, we demonstrate that Lef1 expression in fibroblasts primes the adult skin macroenvironment to enhance skin repair, including regeneration of hair follicles with arrector pili muscles in healed wounds. Finally, we share our genomic data in an interactive, searchable companion website (https://skinregeneration.org/). Together, these data and resources provide a platform to leverage the regenerative abilities of neonatal skin to develop clinically tractable solutions that promote the regeneration of adult tissue.
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Affiliation(s)
- Quan M Phan
- School of Molecular Biosciences, Washington State UniversityPullmanUnited States
| | - Gracelyn M Fine
- School of Molecular Biosciences, Washington State UniversityPullmanUnited States
| | - Lucia Salz
- School of Molecular Biosciences, Washington State UniversityPullmanUnited States
| | - Gerardo G Herrera
- School of Molecular Biosciences, Washington State UniversityPullmanUnited States
| | - Ben Wildman
- School of Molecular Biosciences, Washington State UniversityPullmanUnited States
| | - Iwona M Driskell
- School of Molecular Biosciences, Washington State UniversityPullmanUnited States
| | - Ryan R Driskell
- School of Molecular Biosciences, Washington State UniversityPullmanUnited States
- Center for Reproductive Biology, Washington State UniversityPullmanUnited States
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26
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Enhanced recombinant C-terminal domain of gli2 gene expression can improve wound healing through promoting cdc25b and N-Myc genes expression. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Abe Y, Tanaka N. Fine-Tuning of GLI Activity through Arginine Methylation: Its Mechanisms and Function. Cells 2020; 9:cells9091973. [PMID: 32859041 PMCID: PMC7565022 DOI: 10.3390/cells9091973] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/20/2020] [Accepted: 08/24/2020] [Indexed: 12/13/2022] Open
Abstract
The glioma-associated oncogene (GLI) family consists of GLI1, GLI2, and GLI3 in mammals. This family has important roles in development and homeostasis. To achieve these roles, the GLI family has widespread outputs. GLI activity is therefore strictly regulated at multiple levels, including via post-translational modifications for context-dependent GLI target gene expression. The protein arginine methyl transferase (PRMT) family is also associated with embryogenesis, homeostasis, and cancer mainly via epigenetic modifications. In the PRMT family, PRMT1, PRMT5, and PRMT7 reportedly regulate GLI1 and GLI2 activity. PRMT1 methylates GLI1 to upregulate its activity and target gene expression. Cytoplasmic PRMT5 methylates GLI1 and promotes GLI1 protein stabilization. Conversely, nucleic PRMT5 interacts with MENIN to suppress growth arrest-specific protein 1 expression, which assists Hedgehog ligand binding to Patched, indirectly resulting in downregulated GLI1 activity. PRMT7-mediated GLI2 methylation upregulates its activity through the dissociation of GLI2 and Suppressor of Fused. Together, PRMT1, PRMT5, and PRMT7 regulate GLI activity at multiple revels. Furthermore, the GLI and PRMT families have strong links with various cancers through cancer stem cell maintenance. Therefore, PRMT-mediated regulation of GLI activity would have important roles in cancer stem cell maintenance.
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28
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Meisel CT, Porcheri C, Mitsiadis TA. Cancer Stem Cells, Quo Vadis? The Notch Signaling Pathway in Tumor Initiation and Progression. Cells 2020; 9:cells9081879. [PMID: 32796631 PMCID: PMC7463613 DOI: 10.3390/cells9081879] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 02/06/2023] Open
Abstract
The Notch signaling pathway regulates cell proliferation, cytodifferentiation and cell fate decisions in both embryonic and adult life. Several aspects of stem cell maintenance are dependent from the functionality and fine tuning of the Notch pathway. In cancer, Notch is specifically involved in preserving self-renewal and amplification of cancer stem cells, supporting the formation, spread and recurrence of the tumor. As the function of Notch signaling is context dependent, we here provide an overview of its activity in a variety of tumors, focusing mostly on its role in the maintenance of the undifferentiated subset of cancer cells. Finally, we analyze the potential of molecules of the Notch pathway as diagnostic and therapeutic tools against the various cancers.
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29
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Grund-Gröschke S, Ortner D, Szenes-Nagy AB, Zaborsky N, Weiss R, Neureiter D, Wipplinger M, Risch A, Hammerl P, Greil R, Sibilia M, Gratz IK, Stoitzner P, Aberger F. Epidermal activation of Hedgehog signaling establishes an immunosuppressive microenvironment in basal cell carcinoma by modulating skin immunity. Mol Oncol 2020; 14:1930-1946. [PMID: 32615027 PMCID: PMC7463314 DOI: 10.1002/1878-0261.12758] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 05/27/2020] [Accepted: 06/26/2020] [Indexed: 12/24/2022] Open
Abstract
Genetic activation of hedgehog/glioma‐associated oncogene homolog (HH/GLI) signaling causes basal cell carcinoma (BCC), a very frequent nonmelanoma skin cancer. Small molecule targeting of the essential HH effector Smoothened (SMO) has proven an effective therapy of BCC, though the frequent development of drug resistance poses major challenges to anti‐HH treatments. In light of recent breakthroughs in cancer immunotherapy, we analyzed the possible immunosuppressive mechanisms in HH/GLI‐induced BCC in detail. Using a genetic mouse model of BCC, we identified profound differences in the infiltration of BCC lesions with cells of the adaptive and innate immune system. Epidermal activation of Hh/Gli signaling led to an accumulation of immunosuppressive regulatory T cells, and to an increased expression of immune checkpoint molecules including programmed death (PD)‐1/PD‐ligand 1. Anti‐PD‐1 monotherapy, however, did not reduce tumor growth, presumably due to the lack of immunogenic mutations in common BCC mouse models, as shown by whole‐exome sequencing. BCC lesions also displayed a marked infiltration with neutrophils, the depletion of which unexpectedly promoted BCC growth. The study provides a comprehensive survey of and novel insights into the immune status of murine BCC and serves as a basis for the design of efficacious rational combination treatments. This study also underlines the need for predictive immunogenic mouse models of BCC to evaluate the efficacy of immunotherapeutic strategies in vivo.
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Affiliation(s)
- Sandra Grund-Gröschke
- Department of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University Salzburg, Austria
| | - Daniela Ortner
- Department of Dermatology, Venereology & Allergology, Medical University Innsbruck, Austria
| | - Antal B Szenes-Nagy
- Department of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University Salzburg, Austria
| | - Nadja Zaborsky
- IIIrd Medical Department, Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Paracelsus Medical University Salzburg, Cancer Cluster Salzburg, Austria
| | - Richard Weiss
- Department of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University Salzburg, Austria
| | - Daniel Neureiter
- Institute of Pathology, Paracelsus Medical University Salzburg, Cancer Cluster Salzburg, Austria
| | - Martin Wipplinger
- Department of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University Salzburg, Austria
| | - Angela Risch
- Department of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University Salzburg, Austria
| | - Peter Hammerl
- Department of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University Salzburg, Austria
| | - Richard Greil
- IIIrd Medical Department, Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Paracelsus Medical University Salzburg, Cancer Cluster Salzburg, Austria
| | - Maria Sibilia
- Institute of Cancer Research, Comprehensive Cancer Center, Medical University of Vienna, Austria
| | - Iris K Gratz
- Department of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University Salzburg, Austria
| | - Patrizia Stoitzner
- Department of Dermatology, Venereology & Allergology, Medical University Innsbruck, Austria
| | - Fritz Aberger
- Department of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University Salzburg, Austria
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Yun T, Wang J, Yang J, Huang W, Lai L, Tan W, Liu Y. Discovery of Small Molecule Inhibitors Targeting the Sonic Hedgehog. Front Chem 2020; 8:498. [PMID: 32612978 PMCID: PMC7309560 DOI: 10.3389/fchem.2020.00498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 05/14/2020] [Indexed: 01/03/2023] Open
Abstract
The aberrant activation of hedgehog (Hh) signaling pathway is closely related to human diseases. The upstream protein, N-terminal product of sonic hedgehog (ShhN) is overexpressed in many cancers and considered as a promising antitumor target. Inhibitors that bind to ShhN and break its interaction with the 12-transmembrane glycoprotein patched (Ptch) protein are highly wanted to tune down the abnormal Hh pathway activation. However, research of ShhN inhibitors remains lacking. In this paper, we computationally screened potential inhibitors against the ShhN-Ptch interaction interface, and tested their activities by experimental studies. Seven compounds (1-7) with diverse scaffolds, showed inhibition in cellular assays and directly bound to ShhN in vitro. The compounds were verified to modulate the Hh pathway activity. Furthermore, we studied the structure-activity relationship of the pyrimidine (7) derivatives and identified a potent compound (7_3d3) with IC50 of 0.4 ± 0.1 μM in cellular assays. These small molecule inhibitors of ShhN provide novel chemical probes for future investigations of Hh signaling.
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Affiliation(s)
- Taikangxiang Yun
- Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences (BNLMS), Peking University, Beijing, China
| | - Juan Wang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Jun Yang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Wenjing Huang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Luhua Lai
- Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences (BNLMS), Peking University, Beijing, China
| | - Wenfu Tan
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Ying Liu
- Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences (BNLMS), Peking University, Beijing, China
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Desai D, Pethe P. Polycomb repressive complex 1: Regulators of neurogenesis from embryonic to adult stage. J Cell Physiol 2020; 235:4031-4045. [PMID: 31608994 DOI: 10.1002/jcp.29299] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 09/27/2019] [Indexed: 02/05/2023]
Abstract
Development of vertebrate nervous system is a complex process which involves differential gene expression and disruptions in this process or in the mature brain, may lead to neurological disorders and diseases. Extensive work that spanned several decades using rodent models and recent work on stem cells have helped uncover the intricate process of neuronal differentiation and maturation. There are various morphological changes, genetic and epigenetic modifications which occur during normal mammalian neural development, one of the chromatin modifications that controls vital gene expression are the posttranslational modifications on histone proteins, that controls accessibility of translational machinery. Among the histone modifiers, polycomb group proteins (PcGs), such as Ezh2, Eed and Suz12 form large protein complexes-polycomb repressive complex 2 (PRC2); while Ring1b and Bmi1 proteins form core of PRC1 along with accessory proteins such as Cbx, Hph, Rybp and Pcgfs catalyse histone modifications such as H3K27me3 and H2AK119ub1. PRC1 proteins are known to play critical role in X chromosome inactivation in females but they also repress the expression of key developmental genes and tightly regulate the mammalian neuronal development. In this review we have discussed the signalling pathways, morphogens and nuclear factors that initiate, regulate and maintain cells of the nervous system. Further, we have extensively reviewed the recent literature on the role of Ring1b and Bmi1 in mammalian neuronal development and differentiation; as well as highlighted questions that are still unanswered.
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Affiliation(s)
- Divya Desai
- Department of Biological Sciences, Sunandan Divatia School of Science (SDSOS), Narsee Monjee Institute of Management Studies (NMIMS) deemed-to-be University, Mumbai, India
| | - Prasad Pethe
- Symbiosis Centre for Stem Cell Research (SCSCR), Symbiosis International University (SIU), Pune, India
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Roy V, Magne B, Vaillancourt-Audet M, Blais M, Chabaud S, Grammond E, Piquet L, Fradette J, Laverdière I, Moulin VJ, Landreville S, Germain L, Auger FA, Gros-Louis F, Bolduc S. Human Organ-Specific 3D Cancer Models Produced by the Stromal Self-Assembly Method of Tissue Engineering for the Study of Solid Tumors. BIOMED RESEARCH INTERNATIONAL 2020; 2020:6051210. [PMID: 32352002 PMCID: PMC7178531 DOI: 10.1155/2020/6051210] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 02/07/2020] [Accepted: 02/28/2020] [Indexed: 12/24/2022]
Abstract
Cancer research has considerably progressed with the improvement of in vitro study models, helping to understand the key role of the tumor microenvironment in cancer development and progression. Over the last few years, complex 3D human cell culture systems have gained much popularity over in vivo models, as they accurately mimic the tumor microenvironment and allow high-throughput drug screening. Of particular interest, in vitrohuman 3D tissue constructs, produced by the self-assembly method of tissue engineering, have been successfully used to model the tumor microenvironment and now represent a very promising approach to further develop diverse cancer models. In this review, we describe the importance of the tumor microenvironment and present the existing in vitro cancer models generated through the self-assembly method of tissue engineering. Lastly, we highlight the relevance of this approach to mimic various and complex tumors, including basal cell carcinoma, cutaneous neurofibroma, skin melanoma, bladder cancer, and uveal melanoma.
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Affiliation(s)
- Vincent Roy
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Brice Magne
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Maude Vaillancourt-Audet
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Mathieu Blais
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Stéphane Chabaud
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Emil Grammond
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Léo Piquet
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, QC, Canada
| | - Julie Fradette
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Isabelle Laverdière
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, QC, Canada
- Faculty of Pharmacy, Université Laval and CHU de Québec-Université Laval Research Center, Oncology Division, Québec, QC, Canada
| | - Véronique J. Moulin
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Solange Landreville
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, QC, Canada
- Department of Ophthalmology, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Lucie Germain
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - François A. Auger
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - François Gros-Louis
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Stéphane Bolduc
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
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Lézot F, Corre I, Morice S, Rédini F, Verrecchia F. SHH Signaling Pathway Drives Pediatric Bone Sarcoma Progression. Cells 2020; 9:cells9030536. [PMID: 32110934 PMCID: PMC7140443 DOI: 10.3390/cells9030536] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 02/19/2020] [Accepted: 02/23/2020] [Indexed: 02/07/2023] Open
Abstract
Primary bone tumors can be divided into two classes, benign and malignant. Among the latter group, osteosarcoma and Ewing sarcoma are the most prevalent malignant primary bone tumors in children and adolescents. Despite intensive efforts to improve treatments, almost 40% of patients succumb to the disease. Specifically, the clinical outcome for metastatic osteosarcoma or Ewing sarcoma remains poor; less than 30% of patients who present metastases will survive 5 years after initial diagnosis. One common and specific point of these bone tumors is their ability to deregulate bone homeostasis and remodeling and divert them to their benefit. Over the past years, considerable interest in the Sonic Hedgehog (SHH) pathway has taken place within the cancer research community. The activation of this SHH cascade can be done through different ways and, schematically, two pathways can be described, the canonical and the non-canonical. This review discusses the current knowledge about the involvement of the SHH signaling pathway in skeletal development, pediatric bone sarcoma progression and the related therapeutic options that may be possible for these tumors.
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34
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Effect of mutations on drug resistance of smoothened receptor toward inhibitors probed by molecular modeling. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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35
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Han W, Allam SA, Elsawa SF. GLI2-Mediated Inflammation in the Tumor Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1263:55-65. [PMID: 32588323 DOI: 10.1007/978-3-030-44518-8_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The tumor microenvironment (TME) plays an important role in the development and progression of cancer and has been shown to contribute to resistance to therapy. Inflammation is one of the hallmarks of cancer implicated in disease phenotype. Therefore, understanding the mechanisms that regulate inflammation in cancer and consequently how inflammatory mediators promote cancer progression is important for our understanding of cancer cell biology. The transcription factor GLI2 was initially identified as a member of the Hedgehog (HH) signaling pathway. During the last decade, studies have shown a novel mechanism of GLI2 regulation independent of HH signaling, where GLI2 consequently modulated several cytokine genes in the TME. These studies highlight a novel role for GLI2 as an inflammatory mediatory independent of HH stimulation. This chapter will discuss canonical and noncanonical pathways of GLI2 regulation and some of the downstream cytokine target genes regulated by GLI2.
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Affiliation(s)
- Weiguo Han
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH, USA
| | - Shereen A Allam
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH, USA
| | - Sherine F Elsawa
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH, USA.
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36
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Huang K, Sun Z, Ding B, Jiang X, Wang Z, Zhu Y, Meng F. Suppressing Hedgehog signaling reverses drug resistance of refractory acute myeloid leukemia. Onco Targets Ther 2019; 12:7477-7488. [PMID: 31686853 PMCID: PMC6752208 DOI: 10.2147/ott.s216628] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/16/2019] [Indexed: 12/20/2022] Open
Abstract
Background Hedgehog (Hh) signaling is involved in the pathogenesis of tumors. By performing gene chip analysis, we predicted that Hh signaling might regulate multiple downstream pathways in acute myeloid leukemia (AML). Methods In this study, the potential role of the Hh pathway in refractory AML, and the impact of Hh expression on clinical prognosis were examined. We also investigated the role of the Hh inhibitor NVP-LDE225 in reversing drug resistance of refractory primary AML cells in vitro and the roles of multiple drug-resistant HL60/Adriamycin-resistant cells in vitro and in vivo (in a xenograft mouse model). Finally, we explored the underlying mechanisms. Results Hh pathway was highly active in chemotherapy-resistant AML cells; by contrast, activation was less pronounced in chemosensitive cells and non-refractory primary cells. Strong activation of this pathway was associated with higher recurrence rates and poorer relapse-free and overall survival. NVP-LDE225 inhibited MRP1 protein expression, increased intracellular accumulation of Adriamycin, and reversed chemotherapeutic resistance. These effects were likely mediated through inhibition of the IGF-1R/Akt/MRP1 pathway. In the AML xenograft mouse model, NVP-LDE225 plus Adriamycin resulted in marked tumor regression. Conclusion These findings suggest that targeting the Hh pathway might be a therapeutic avenue for overcoming MDR resistance and preventing refractory AML.
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Affiliation(s)
- Kaikai Huang
- Department of Hematology, Shenzhen Hospital, Southern Medical University, Shenzhen, People's Republic of China.,Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China.,Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, People's Republic of China
| | - Zhiqiang Sun
- Department of Hematology, Shenzhen Hospital, Southern Medical University, Shenzhen, People's Republic of China
| | - Bingjie Ding
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China.,Department of Hematology, Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Xuejie Jiang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Zhixiang Wang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yufeng Zhu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Fanyi Meng
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
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Vasserot AP, Geyfman M, Poloso NJ. Androgenetic alopecia: combing the hair follicle signaling pathways for new therapeutic targets and more effective treatment options. Expert Opin Ther Targets 2019; 23:755-771. [PMID: 31456448 DOI: 10.1080/14728222.2019.1659779] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Introduction: In the past 30 years, only two drugs have received FDA approval for the treatment of androgenetic alopecia reflecting a lack of success in unraveling novel targets for pharmacological intervention. However, as our knowledge of hair biology improves, new signaling pathways and organogenesis processes are being uncovered which have the potential to yield more effective therapeutic modalities. Areas covered: This review focuses on potential targets for drug development to treat hair loss. The physiological processes underlying the promise of regenerative medicine to recreate new functional hair follicles in bald scalp are also examined. Expert opinion: The discovery of promising new targets may soon enable treatment options that modulate the hair cycle to preserve or extend the growth phase of the hair follicle. These new targets could also be leveraged to stimulate progenitor cells and morphogenic pathways to reactivate miniaturized follicles in bald scalp or to harness the potential of wound healing and embryogenic development as an emerging paradigm to generate new hair follicles in barren skin.
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Affiliation(s)
- Alain P Vasserot
- Allergan Plc, Research and External Scientific Innovation , Irvine , CA , USA
| | - Mikhail Geyfman
- Allergan Plc, Research and External Scientific Innovation , Irvine , CA , USA
| | - Neil J Poloso
- Allergan Plc, Research and External Scientific Innovation , Irvine , CA , USA
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Xu L, Deng S, Xiong H, Shi W, Luo S, Chen L. GATA-6 transcriptionally inhibits Shh to repress cell proliferation and migration in lung squamous cell carcinoma. Int J Biochem Cell Biol 2019; 115:105591. [PMID: 31442607 DOI: 10.1016/j.biocel.2019.105591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/19/2019] [Accepted: 08/19/2019] [Indexed: 01/20/2023]
Abstract
GATA-6 is a transcription factor that participates in cell lineage differentiation and organogenesis in many tissue types. The abnormal expression of GATA-6 is associated with the development of diverse cancers. GATA-6 acts as an oncogene or tumor suppressor based on tumor origin. Here, we investigated the effects of GATA-6 on lung squamous cell carcinoma (LSCC). We found that GATA-6 was significantly reduced in LSCC tissues compared with the paired normal tissues. The overexpression of GATA-6 inhibited LSCC cell proliferation and migration. Importantly, a luciferase reporter assay and chromatin immunoprecipitation assay demonstrated that GATA-6 negatively regulated the expression of sonic hedgehog (Shh) by directly binding to its promoter region. Furthermore, N-Shh stimulation rescued the inhibition of LSCC cell proliferation and migration upon GATA-6 overexpression. Thus, GATA-6 inhibited the proliferation and migration of LSCC cells by transcriptionally inhibiting the expression of Shh, indicating that targeting GATA-6 may be a potential approach for LSCC therapy.
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Affiliation(s)
- Linlin Xu
- Center for Experimental Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China; Jiangxi Key Laboratory of Molecular Diagnostics and Precision Medicine, Nanchang, Jiangxi 330006, China
| | - Suyue Deng
- Center for Experimental Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China; Jiangxi Key Laboratory of Molecular Diagnostics and Precision Medicine, Nanchang, Jiangxi 330006, China
| | - Huanting Xiong
- Center for Experimental Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China; School of Pharmacy, Nanchang University, Nanchang, Jiangxi 330006, China; Jiangxi Key Laboratory of Molecular Diagnostics and Precision Medicine, Nanchang, Jiangxi 330006, China
| | - Wei Shi
- Center for Experimental Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China; School of Pharmacy, Nanchang University, Nanchang, Jiangxi 330006, China; Jiangxi Key Laboratory of Molecular Diagnostics and Precision Medicine, Nanchang, Jiangxi 330006, China
| | - Shiwen Luo
- Center for Experimental Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China; Jiangxi Key Laboratory of Molecular Diagnostics and Precision Medicine, Nanchang, Jiangxi 330006, China
| | - Limin Chen
- Center for Experimental Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China; Jiangxi Key Laboratory of Molecular Diagnostics and Precision Medicine, Nanchang, Jiangxi 330006, China.
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Rojo-León V, García C, Valencia C, Méndez MA, Wood C, Covarrubias L. The E6/E7 oncogenes of human papilloma virus and estradiol regulate hedgehog signaling activity in a murine model of cervical cancer. Exp Cell Res 2019; 381:311-322. [PMID: 31125556 DOI: 10.1016/j.yexcr.2019.05.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/25/2019] [Accepted: 05/19/2019] [Indexed: 01/06/2023]
Abstract
Human papilloma virus oncogenes and estradiol are major etiologic factors associated with cervical cancer. In order to understand the mechanism by which these two factors promote carcinogenesis, the role of the Hedgehog (Hh) signaling pathway was evaluated during the normal growth of cervical epithelium and in the presence of E6/E7 oncogenes and exogenous estradiol. Hh signaling activity was determined in live animals (i.e., Gli-Luc reporter levels) during the estrous cycle and was found to be higher in the cervical area during the major growth phases, proestrus-estrus, in comparison to the diestrus phase. The same pattern was observed in transgenic mice expressing the E6/E7 oncogenes, though with notably higher levels than in control mice. Adding estradiol also markedly increased Gli activity in the cervix and the skin. In agreement with the correlation between high bioluminescence and tissue growth in different context, cervical cell proliferation was reduced upon Hh signaling inhibition in mice. Treatment with itraconazole, a putative novel Hh inhibitor, at an early stage of cervical carcinogenesis, did not decrease Hh signaling but it did reduce growth. Therefore, Hh signaling likely contributes to cervical carcinogenesis and itraconazole is effective to reduce growth but by a mechanism involving additional signaling pathways.
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Affiliation(s)
- Verónica Rojo-León
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, Universidad Nacional Autónoma de México. Av. Universidad 2001, Cuernavaca Morelos, 62210, México.
| | - Celina García
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, Universidad Nacional Autónoma de México. Av. Universidad 2001, Cuernavaca Morelos, 62210, México.
| | - Concepción Valencia
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, Universidad Nacional Autónoma de México. Av. Universidad 2001, Cuernavaca Morelos, 62210, México.
| | - Marco-Antonio Méndez
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, Universidad Nacional Autónoma de México. Av. Universidad 2001, Cuernavaca Morelos, 62210, México.
| | - Christopher Wood
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, Universidad Nacional Autónoma de México. Av. Universidad 2001, Cuernavaca Morelos, 62210, México.
| | - Luis Covarrubias
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, Universidad Nacional Autónoma de México. Av. Universidad 2001, Cuernavaca Morelos, 62210, México.
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Role of Hedgehog Signaling in Breast Cancer: Pathogenesis and Therapeutics. Cells 2019; 8:cells8040375. [PMID: 31027259 PMCID: PMC6523618 DOI: 10.3390/cells8040375] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 04/22/2019] [Accepted: 04/23/2019] [Indexed: 02/06/2023] Open
Abstract
Breast cancer (BC) is the leading cause of cancer-related mortality in women, only followed by lung cancer. Given the importance of BC in public health, it is essential to identify biomarkers to predict prognosis, predetermine drug resistance and provide treatment guidelines that include personalized targeted therapies. The Hedgehog (Hh) signaling pathway plays an essential role in embryonic development, tissue regeneration, and stem cell renewal. Several lines of evidence endorse the important role of canonical and non-canonical Hh signaling in BC. In this comprehensive review we discuss the role of Hh signaling in breast development and homeostasis and its contribution to tumorigenesis and progression of different subtypes of BC. We also examine the efficacy of agents targeting different components of the Hh pathway both in preclinical models and in clinical trials. The contribution of the Hh pathway in BC tumorigenesis and progression, its prognostic role, and its value as a therapeutic target vary according to the molecular, clinical, and histopathological characteristics of the BC patients. The evidence presented here highlights the relevance of the Hh signaling in BC, and suggest that this pathway is key for BC progression and metastasis.
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Mirza AN, McKellar SA, Urman NM, Brown AS, Hollmig T, Aasi SZ, Oro AE. LAP2 Proteins Chaperone GLI1 Movement between the Lamina and Chromatin to Regulate Transcription. Cell 2019; 176:198-212.e15. [PMID: 30503211 PMCID: PMC6379078 DOI: 10.1016/j.cell.2018.10.054] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/13/2018] [Accepted: 10/26/2018] [Indexed: 12/20/2022]
Abstract
Understanding transcription factor navigation through the nucleus remains critical for developing targeted therapeutics. The GLI1 transcription factor must maintain maximal Hedgehog pathway output in basal cell carcinomas (BCCs), and we have previously shown that resistant BCCs increase GLI1 deacetylation through atypical protein kinase Cι/λ (aPKC) and HDAC1. Here we identify a lamina-associated polypeptide 2 (LAP2) isoform-dependent nuclear chaperoning system that regulates GLI1 movement between the nuclear lamina and nucleoplasm to achieve maximal activation. LAP2β forms a two-site interaction with the GLI1 zinc-finger domain and acetylation site, stabilizing an acetylation-dependent reserve on the inner nuclear membrane (INM). By contrast, the nucleoplasmic LAP2α competes with LAP2β for GLI1 while scaffolding HDAC1 to deacetylate the secondary binding site. aPKC functions to promote GLI1 association with LAP2α, promoting egress off the INM. GLI1 intranuclear trafficking by LAP2 isoforms represents a powerful signal amplifier in BCCs with implications for zinc finger-based signal transduction and therapeutics.
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Affiliation(s)
- Amar N Mirza
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Siegen A McKellar
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Nicole M Urman
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Alexander S Brown
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Tyler Hollmig
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Sumaira Z Aasi
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Anthony E Oro
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA.
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Rubino S, Qian J, Pinheiro-Neto CD, Kenning TJ, Adamo MA. A familial syndrome of hypothalamic hamartomas, polydactyly, and SMO mutations: a clinical report of 2 cases. J Neurosurg Pediatr 2019; 23:98-103. [PMID: 30497210 DOI: 10.3171/2018.7.peds18292] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 07/18/2018] [Indexed: 11/06/2022]
Abstract
Hypothalamic hamartomas are benign tumors known to cause gelastic or dacrystic seizures, precocious puberty, developmental delay, and medically refractory epilepsy. These tumors are most often sporadic but rarely can be associated with Pallister-Hall syndrome, an autosomal dominant familial syndrome caused by truncation of glioblastoma transcription factor 3, a downstream effector in the sonic hedgehog pathway. In this clinical report, the authors describe two brothers with a different familial syndrome. To the best of the authors' knowledge, this is the first report in the literature describing a familial syndrome caused by germline mutations in the Smoothened (SMO) gene and the first familial syndrome associated with hypothalamic hamartomas other than Pallister-Hall syndrome. The authors discuss the endoscopic endonasal biopsy and subtotal resection of a large hypothalamic hamartoma in one of the patients as well as the histopathological findings encountered. Integral to this discussion is the understanding of the hedgehog pathway; therefore, the underpinnings of this pathway and its clinical associations to date are also reviewed.
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Bariwal J, Kumar V, Dong Y, Mahato RI. Design of Hedgehog pathway inhibitors for cancer treatment. Med Res Rev 2018; 39:1137-1204. [PMID: 30484872 DOI: 10.1002/med.21555] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/18/2018] [Accepted: 10/19/2018] [Indexed: 12/11/2022]
Abstract
Hedgehog (Hh) signaling is involved in the initiation and progression of various cancers and is essential for embryonic and postnatal development. This pathway remains in the quiescent state in adult tissues but gets activated upon inflammation and injuries. Inhibition of Hh signaling pathway using natural and synthetic compounds has provided an attractive approach for treating cancer and inflammatory diseases. While the majority of Hh pathway inhibitors target the transmembrane protein Smoothened (SMO), some small molecules that target the signaling cascade downstream of SMO are of particular interest. Substantial efforts are being made to develop new molecules targeting various components of the Hh signaling pathway. Here, we have discussed the discovery of small molecules as Hh inhibitors from the diverse chemical background. Also, some of the recently identified natural products have been included as a separate section. Extensive structure-activity relationship (SAR) of each chemical class is the focus of this review. Also, clinically advanced molecules are discussed from the last 5 to 7 years. Nanomedicine-based delivery approaches for Hh pathway inhibitors are also discussed concisely.
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Affiliation(s)
- Jitender Bariwal
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Virender Kumar
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Yuxiang Dong
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Ram I Mahato
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska
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Hedgehog stimulates hair follicle neogenesis by creating inductive dermis during murine skin wound healing. Nat Commun 2018; 9:4903. [PMID: 30464171 PMCID: PMC6249328 DOI: 10.1038/s41467-018-07142-9] [Citation(s) in RCA: 158] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/15/2018] [Indexed: 12/14/2022] Open
Abstract
Mammalian wounds typically heal by fibrotic repair without hair follicle (HF) regeneration. Fibrosis and regeneration are currently considered the opposite end of wound healing. This study sought to determine if scar could be remodeled to promote healing with HF regeneration. Here, we identify that activation of the Sonic hedgehog (Shh) pathway reinstalls a regenerative dermal niche, called dermal papilla, which is required and sufficient for HF neogenesis (HFN). Epidermal Shh overexpression or constitutive Smoothened dermal activation results in extensive HFN in wounds that otherwise end in scarring. While long-term Wnt activation is associated with fibrosis, Shh signal activation in Wnt active cells promotes the dermal papilla fate in scarring wounds. These studies demonstrate that mechanisms of scarring and regeneration are not distant from one another and that wound repair can be redirected to promote regeneration following injury by modifying a key dermal signal. On wounding, scar formation in mammals arises causing no hair follicle regeneration, but it is unclear if scarring precludes regeneration. Here, the authors show that if Sonic hedgehog signaling is activated in the wound, an inductive dermal niche forms, enabling regeneration and hair follicle formation.
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Wolkow N, Jakobiec FA, Yoon MK. Intratarsal keratinous eyelid cysts in Gorlin syndrome: A review and reappraisal. Surv Ophthalmol 2018; 63:711-718. [DOI: 10.1016/j.survophthal.2017.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 12/08/2017] [Accepted: 12/18/2017] [Indexed: 11/16/2022]
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Turner MW, Cruz R, Elwell J, French J, Mattos J, McDougal OM. Native V. californicum Alkaloid Combinations Induce Differential Inhibition of Sonic Hedgehog Signaling. Molecules 2018; 23:E2222. [PMID: 30200443 PMCID: PMC6225318 DOI: 10.3390/molecules23092222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 08/22/2018] [Accepted: 08/30/2018] [Indexed: 01/10/2023] Open
Abstract
Veratrum californicum is a rich source of steroidal alkaloids such as cyclopamine, a known inhibitor of the Hedgehog (Hh) signaling pathway. Here we provide a detailed analysis of the alkaloid composition of V. californicum by plant part through quantitative analysis of cyclopamine, veratramine, muldamine and isorubijervine in the leaf, stem and root/rhizome of the plant. To determine whether additional alkaloids in the extracts contribute to Hh signaling inhibition, the concentrations of these four alkaloids present in extracts were replicated using commercially available standards, followed by comparison of extracts to alkaloid standard mixtures for inhibition of Hh signaling using Shh-Light II cells. Alkaloid combinations enhanced Hh signaling pathway antagonism compared to cyclopamine alone, and significant differences were observed in the Hh pathway inhibition between the stem and root/rhizome extracts and their corresponding alkaloid standard mixtures, indicating that additional alkaloids present in these extracts are capable of inhibiting Hh signaling.
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Affiliation(s)
- Matthew W Turner
- Biomolecular Sciences Graduate Programs, Boise State University, 1910 University Drive, Boise, ID 83725, USA.
- Department of Chemistry and Biochemistry, Boise State University, 1910 University Drive, Boise, ID 83725, USA.
| | - Roberto Cruz
- Department of Chemistry and Biochemistry, Boise State University, 1910 University Drive, Boise, ID 83725, USA.
| | - Jordan Elwell
- Department of Chemistry and Biochemistry, Boise State University, 1910 University Drive, Boise, ID 83725, USA.
| | - John French
- Department of Chemistry and Biochemistry, Boise State University, 1910 University Drive, Boise, ID 83725, USA.
| | - Jared Mattos
- Department of Chemistry and Biochemistry, Boise State University, 1910 University Drive, Boise, ID 83725, USA.
| | - Owen M McDougal
- Department of Chemistry and Biochemistry, Boise State University, 1910 University Drive, Boise, ID 83725, USA.
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Mesodermal induction of pancreatic fate commitment. Semin Cell Dev Biol 2018; 92:77-88. [PMID: 30142440 DOI: 10.1016/j.semcdb.2018.08.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 07/29/2018] [Accepted: 08/20/2018] [Indexed: 12/27/2022]
Abstract
The pancreas is a compound gland comprised of both exocrine acinar and duct cells as well as endocrine islet cells. Most notable amongst the latter are the insulin-synthesizing β-cells, loss or dysfunction of which manifests in diabetes mellitus. All exocrine and endocrine cells derive from multipotent pancreatic progenitor cells arising from the primitive gut epithelium via inductive interactions with adjacent mesodermal tissues. Research in the last two decades has revealed the identity of many of these extrinsic cues and they include signaling molecules used in many other developmental contexts such as retinoic acid, fibroblast growth factors, and members of the TGF-β superfamily. As important as these inductive cues is the absence of other signaling molecules such as hedgehog family members. Much has been learned about the interactions of extrinsic factors with fate regulators intrinsic to the pancreatic endoderm. This new knowledge has had tremendous impact on the development of directed differentiation protocols for converting pluripotent stem cells to β-cells in vitro.
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Castillo-Azofeifa D, Seidel K, Gross L, Golden EJ, Jacquez B, Klein OD, Barlow LA. SOX2 regulation by hedgehog signaling controls adult lingual epithelium homeostasis. Development 2018; 145:dev.164889. [PMID: 29945863 DOI: 10.1242/dev.164889] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 06/08/2018] [Indexed: 12/21/2022]
Abstract
Adult tongue epithelium is continuously renewed from epithelial progenitor cells, a process that requires hedgehog (HH) signaling. In mice, pharmacological inhibition of the HH pathway causes taste bud loss within a few weeks. Previously, we demonstrated that sonic hedgehog (SHH) overexpression in lingual progenitors induces ectopic taste buds with locally increased SOX2 expression, suggesting that taste bud differentiation depends on SOX2 downstream of HH. To test this, we inhibited HH signaling in mice and observed a rapid decline in Sox2 and SOX2-GFP expression in taste epithelium. Upon conditional deletion of Sox2, differentiation of both taste and non-taste epithelial cells was blocked, and progenitor cell number increased. In contrast to basally restricted proliferation in controls, dividing cells were overabundant and spread to suprabasal epithelial layers in mutants. SOX2 loss in progenitors also led non-cell-autonomously to taste cell apoptosis, dramatically shortening taste cell lifespans. Finally, in tongues with conditional Sox2 deletion and SHH overexpression, ectopic and endogenous taste buds were not detectable; instead, progenitor hyperproliferation expanded throughout the lingual epithelium. In summary, we show that SOX2 functions downstream of HH signaling to regulate lingual epithelium homeostasis.
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Affiliation(s)
- David Castillo-Azofeifa
- Department of Cell and Developmental Biology, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA.,Rocky Mountain Taste and Smell Center, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA.,Graduate Program in Cell Biology, Stem Cells and Development, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Kerstin Seidel
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA 94131, USA
| | - Lauren Gross
- Department of Cell and Developmental Biology, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Erin J Golden
- Department of Cell and Developmental Biology, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Belkis Jacquez
- Department of Cell and Developmental Biology, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA.,BRAIN Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Ophir D Klein
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA 94131, USA.,Department of Pediatrics, University of California San Francisco, San Francisco, CA 94131, USA.,Institute for Human Genetics, University of California San Francisco, San Francisco, CA 94131, USA
| | - Linda A Barlow
- Department of Cell and Developmental Biology, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA .,Rocky Mountain Taste and Smell Center, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA.,Graduate Program in Cell Biology, Stem Cells and Development, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA.,BRAIN Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
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Cross-Talk between Wnt and Hh Signaling Pathways in the Pathology of Basal Cell Carcinoma. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15071442. [PMID: 29987229 PMCID: PMC6069411 DOI: 10.3390/ijerph15071442] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 07/05/2018] [Accepted: 07/05/2018] [Indexed: 12/19/2022]
Abstract
Basal cell carcinoma (BCC) is the most frequently occurring form of all cancers. The cost of care for BCC is one of the highest for all cancers in the Medicare population in the United States. Activation of Hedgehog (Hh) signaling pathway appears to be a key driver of BCC development. Studies involving mouse models have provided evidence that activation of the glioma-associated oncogene (GLI) family of transcription factors is a key step in the initiation of the tumorigenic program leading to BCC. Activation of the Wnt pathway is also observed in BCCs. In addition, the Wnt signaling pathway has been shown to be required in Hh pathway-driven development of BCC in a mouse model. Cross-talks between Wnt and Hh pathways have been observed at different levels, yet the mechanisms of these cross-talks are not fully understood. In this review, we examine the mechanism of cross-talk between Wnt and Hh signaling in BCC development and its potential relevance for treatment. Recent studies have identified insulin-like growth factor 2 mRNA-binding protein 1 (IGF2BP1), a direct target of the Wnt/β-catenin signaling, as the factor that binds to GLI1 mRNA and upregulates its levels and activities. This mode of regulation of GLI1 appears important in BCC tumorigenesis and could be explored in the treatment of BCCs.
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50
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de Gruijl FR, Tensen CP. Pathogenesis of Skin Carcinomas and a Stem Cell as Focal Origin. Front Med (Lausanne) 2018; 5:165. [PMID: 29896477 PMCID: PMC5986939 DOI: 10.3389/fmed.2018.00165] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/09/2018] [Indexed: 01/04/2023] Open
Abstract
UV radiation in sunlight has long been recognized as the main exogenous cause of skin carcinomas. We present a brief historical perspective on the progress in understanding the pathogenesis of skin carcinomas, and recent advances. Sun-exposed skin carries numerous UV-related mutations, and skin carcinomas rank among the tumors with the highest mutational loads. In this multitude of mutations only a few are crucial in driving the tumor. Some are known from hereditary (skin) cancer syndromes and other recurrent ones have been validated in transgenic mice. Considering the continuous renewal of the epidermis, the question arises whether the lifelong residing stem cells are the main targets in skin carcinogenesis, a multistep process that would require ample time to evolve. Therefore, classic quiescent stem cells have been studied as potential tumor-initiating cells, as well as more recently discovered actively dividing stem cells (either Lgr5+ or Lgr6+). Interesting differences have emerged between experimental UV and two-stage chemical carcinogenesis, e.g., the latter appears to originate from follicular stem cells, in contrast to the former.
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Affiliation(s)
- Frank R de Gruijl
- Department of Dermatology, Leiden University Medical Center Leiden, Netherlands
| | - Cornelis P Tensen
- Department of Dermatology, Leiden University Medical Center Leiden, Netherlands
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