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Gong X, Lin X, Wang S, Ji D, Shu B, Huang ZS, Li D. Regulation of c-Kit gene transcription selectively by bisacridine derivative through promoter dual i-motif structures. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2023; 1866:194912. [PMID: 36754277 DOI: 10.1016/j.bbagrm.2023.194912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 01/16/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023]
Abstract
BACKGROUND c-Kit protein is a signal transduction protein involved in multiple signal pathways, which play an important role in a variety of cellular events such as cell proliferation, apoptosis and differentiation. Special DNA secondary structures on the promoter of c-Kit gene, including G-quadruplex and i-motif structures, could act as "molecular switch" for gene transcriptional regulation, which are potentially important target for development of new anti-cancer drugs. METHODS We screened and evaluated the effect of compounds on c-Kit through several experiments, including SPR, FRET, CD, MST, NMR, dual-luciferase reporter assay, Western blot, qPCR, immunofluorescence, MTT assay, colony formation, cell scrape, cell apoptosis, cell cycle analysis, and transwell assay. RESULTS After extensive screening, we found that bisacridine derivative B05 had selective binding and stabilization to dual i-motif structures on c-Kit gene promoter, which could down-regulate c-Kit gene transcription and translation, resulting in inhibition of cell proliferation and metastasis. B05 exhibited potent anti-tumor activity on HGC-27 cells, and strongly suppressed tumor growth in HGC-27 xenograft mice model. CONCLUSIONS B05 could interact with c-Kit promoter dual i-motif structures with excellent selectivity, which make it possible for selective regulation of gene transcription and translation. B05 could be further developed for selective anti-cancer agent targeting c-Kit promoter i-motifs. GENERAL SIGNIFICANCE i-Motifs on different proto-oncogene promoters are diversified, and especially binding of dual i-motifs on the same promoter simultaneously could significantly down-regulate gene transcription with decreased dosage, and therefore increasing the selectivity. This new strategy shed bight light on development of selective DNA-targeting ligands.
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Affiliation(s)
- Xue Gong
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou University City, Guangzhou, PR China
| | - Xiaomin Lin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou University City, Guangzhou, PR China
| | - Siyi Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou University City, Guangzhou, PR China
| | - Dongsheng Ji
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou University City, Guangzhou, PR China
| | - Bing Shu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou University City, Guangzhou, PR China; School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Zhi-Shu Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou University City, Guangzhou, PR China
| | - Ding Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou University City, Guangzhou, PR China.
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Stachyra K, Dudzisz-Śledź M, Bylina E, Szumera-Ciećkiewicz A, Spałek MJ, Bartnik E, Rutkowski P, Czarnecka AM. Merkel Cell Carcinoma from Molecular Pathology to Novel Therapies. Int J Mol Sci 2021; 22:6305. [PMID: 34208339 PMCID: PMC8231245 DOI: 10.3390/ijms22126305] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/24/2021] [Accepted: 06/02/2021] [Indexed: 02/07/2023] Open
Abstract
Merkel cell carcinoma (MCC) is an uncommon and highly aggressive skin cancer. It develops mostly within chronically sun-exposed areas of the skin. MCPyV is detected in 60-80% of MCC cases as integrated within the genome and is considered a major risk factor for MCC. Viral negative MCCs have a high mutation burden with a UV damage signature. Aberrations occur in RB1, TP53, and NOTCH genes as well as in the PI3K-AKT-mTOR pathway. MCC is highly immunogenic, but MCC cells are known to evade the host's immune response. Despite the characteristic immunohistological profile of MCC, the diagnosis is challenging, and it should be confirmed by an experienced pathologist. Sentinel lymph node biopsy is considered the most reliable staging tool to identify subclinical nodal disease. Subclinical node metastases are present in about 30-50% of patients with primary MCC. The basis of MCC treatment is surgical excision. MCC is highly radiosensitive. It becomes chemoresistant within a few months. MCC is prone to recurrence. The outcomes in patients with metastatic disease are poor, with a historical 5-year survival of 13.5%. The median progression-free survival is 3-5 months, and the median overall survival is ten months. Currently, immunotherapy has become a standard of care first-line therapy for advanced MCC.
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Affiliation(s)
- Karolina Stachyra
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (K.S.); (M.D.-Ś.); (E.B.); (M.J.S.); (P.R.)
- Faculty of Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Monika Dudzisz-Śledź
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (K.S.); (M.D.-Ś.); (E.B.); (M.J.S.); (P.R.)
| | - Elżbieta Bylina
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (K.S.); (M.D.-Ś.); (E.B.); (M.J.S.); (P.R.)
- Department of Clinical Trials, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland
| | - Anna Szumera-Ciećkiewicz
- Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland;
- Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, 00-791 Warsaw, Poland
| | - Mateusz J. Spałek
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (K.S.); (M.D.-Ś.); (E.B.); (M.J.S.); (P.R.)
| | - Ewa Bartnik
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, 02-106 Warsaw, Poland;
| | - Piotr Rutkowski
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (K.S.); (M.D.-Ś.); (E.B.); (M.J.S.); (P.R.)
| | - Anna M. Czarnecka
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (K.S.); (M.D.-Ś.); (E.B.); (M.J.S.); (P.R.)
- Department of Experimental Pharmacology, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland
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Foster BM, Zaidi D, Young TR, Mobley ME, Kerr BA. CD117/c-kit in Cancer Stem Cell-Mediated Progression and Therapeutic Resistance. Biomedicines 2018. [PMID: 29518044 PMCID: PMC5874688 DOI: 10.3390/biomedicines6010031] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Metastasis is the primary cause of cancer patient morbidity and mortality, but due to persisting gaps in our knowledge, it remains untreatable. Metastases often occur as patient tumors progress or recur after initial therapy. Tumor recurrence at the primary site may be driven by a cancer stem-like cell or tumor progenitor cell, while recurrence at a secondary site is driven by metastatic cancer stem cells or metastasis-initiating cells. Ongoing efforts are aimed at identifying and characterizing these stem-like cells driving recurrence and metastasis. One potential marker for the cancer stem-like cell subpopulation is CD117/c-kit, a tyrosine kinase receptor associated with cancer progression and normal stem cell maintenance. Further, activation of CD117 by its ligand stem cell factor (SCF; kit ligand) in the progenitor cell niche stimulates several signaling pathways driving proliferation, survival, and migration. This review examines evidence that the SCF/CD117 signaling axis may contribute to the control of cancer progression through the regulation of stemness and resistance to tyrosine kinase inhibitors.
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Affiliation(s)
- Brittni M Foster
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.
| | - Danish Zaidi
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.
| | - Tyler R Young
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.
| | - Mary E Mobley
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.
| | - Bethany A Kerr
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.
- Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC 27157, USA.
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Posch C, Moslehi H, Sanlorenzo M, Green G, Vujic I, Panzer-Grümayer R, Rappersberger K, Ortiz-Urda S. Pharmacological inhibitors of c-KIT block mutant c-KIT mediated migration of melanocytes and melanoma cells in vitro and in vivo. Oncotarget 2018; 7:45916-45925. [PMID: 27322141 PMCID: PMC5216770 DOI: 10.18632/oncotarget.10001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 06/01/2016] [Indexed: 11/25/2022] Open
Abstract
Mutations in the receptor tyrosine kinase c-KIT (KIT) are frequent oncogenic alterations in melanoma and are predominantly detected in tumors of acral, mucosal, and chronically sun-damaged skin. Research indicates that melanocytes with aberrant KIT signaling can be found in the distant periphery of the primary tumor; However, it is hitherto unknown whether KIT might confer a migratory advantage, thereby enabling genetically abnormal cells to populate a distal area. In this study, we investigated the role of mutant KIT in melanocyte- and melanoma cell migration using KIT mutant lines as well as genetically manipulated murine and primary human melanocytes. Our results revealed that melanocytes, stably transduced with mutant KIT closed a gap inflicted on cell monolayers faster than wild-type controls. Similarly, KIT mutant human melanoma lines were able to populate a larger area in a 3D in vitro skin model compared to KIT wild type and BRAF mutant lines. Genomic profiling revealed that genes associated with increased cell-dispersal of KIT mutant variants were linked to a statistically significant up-regulation of 60 migratory genes (z-score 1.334; p=0.0001). In addition, in vivo experiments harnessing a mouse xenograft model of early melanoma development demonstrated rapid lateral migration of KIT mutant cells compared to respective controls. The specific kinase inhibitors imatinib and nilotinib, could abrogate this migratory advantage in vitro and in vivo. Our work suggests that KIT inhibition might help to target migratory active, KIT mutant melanoma cells, thus representing a potential strategy to reduce spread and local recurrence.
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Affiliation(s)
- Christian Posch
- Department of Dermatology, Mt. Zion Cancer Research Center, University of California San Francisco, San Francisco, CA, USA.,Department of Dermatology, The Rudolfstiftung Hospital, Academic Teaching Hospital, Medical University Vienna, Vienna, Austria.,School of Medicine, Sigmund Freud University, Vienna, Austria.,Children's Cancer Research Institute, St. Anna Kinderspital, Vienna, Austria
| | - Homayoun Moslehi
- Department of Dermatology, Mt. Zion Cancer Research Center, University of California San Francisco, San Francisco, CA, USA
| | - Martina Sanlorenzo
- Department of Dermatology, Mt. Zion Cancer Research Center, University of California San Francisco, San Francisco, CA, USA.,Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Gary Green
- Department of Dermatology, Mt. Zion Cancer Research Center, University of California San Francisco, San Francisco, CA, USA
| | - Igor Vujic
- Department of Dermatology, Mt. Zion Cancer Research Center, University of California San Francisco, San Francisco, CA, USA.,Department of Dermatology, The Rudolfstiftung Hospital, Academic Teaching Hospital, Medical University Vienna, Vienna, Austria.,School of Medicine, Sigmund Freud University, Vienna, Austria
| | | | - Klemens Rappersberger
- Department of Dermatology, The Rudolfstiftung Hospital, Academic Teaching Hospital, Medical University Vienna, Vienna, Austria.,School of Medicine, Sigmund Freud University, Vienna, Austria
| | - Susana Ortiz-Urda
- Department of Dermatology, Mt. Zion Cancer Research Center, University of California San Francisco, San Francisco, CA, USA
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Clinical and Molecular Diagnostic Evaluation of Systemic Mastocytosis in the South-Eastern Hungarian Population Between 2001–2013 – A Single Centre Experience. Pathol Oncol Res 2015; 22:293-9. [DOI: 10.1007/s12253-015-9948-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 05/07/2015] [Indexed: 01/08/2023]
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Madera-Sandoval RL, Reyes-Maldonado E, Dzul-Caamal R, Gallegos-Rangel E, Domínguez-López ML, García-Latorre E, Vega-López A. Fat-associated lymphoid cluster in Cyprinus carpio: Characterisation and its relation with peritoneal haemangiosarcoma. FISH & SHELLFISH IMMUNOLOGY 2015; 44:633-641. [PMID: 25804491 DOI: 10.1016/j.fsi.2015.03.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/21/2015] [Accepted: 03/14/2015] [Indexed: 06/04/2023]
Abstract
FALC cells are natural helper cells producing Th2-type cytokines, which express c-kit, Sca-1, IL7R and CD45 in mouse and human. These cells are involved in allergic responses and contribute to the inflammatory reactions of adipose tissue; however, a lack of information prevails about the presence of these cells in other species. The aim of the study was to identify and characterise FALC cells in the common carp (Cyprinus carpio) using immunohistochemistry and molecular biology techniques as well as to explore their relationships with their microenvironment. Histological description of the FALC was performed using H&E and polyclonal antibodies were used against cell-surface markers such as c-kit, Sca-1 and CD45. Furthermore, gene expression of c-kit, Sca-1 and IL7R was assessed. C. carpio FALC cells express the same surface markers reported in FALC of the mouse at both the pre- and post-transcriptional level. By exposure to the soluble fraction of helminths, FALC cells produce abundant Th2 cytokines (IL-5, IL-6 and IL-13) but do not synthesise IL-1α. Additionally, FALC cells probably participate in vascular remodelling of the intestine vessels, inducing tumours because a malignant haemangiosarcoma in the peritoneal cavity was found. In this tumour, abundant FALC with their characteristic cell-surface markers were detected. The findings of this study suggest the involvement of some proto-oncogenes such as c-kit and Sca-1, and the deregulation of Src kinases modulated by CD45 present in C. carpio FALC with the ontogeny of peritoneal haemangiosarcoma in this fish species.
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Affiliation(s)
- Ruth L Madera-Sandoval
- Laboratorio de Toxicología Ambiental, Departamento de Ingeniería en Sistemas Ambientales, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México, D.F. CP 07738, Mexico
| | - Elba Reyes-Maldonado
- Laboratorio de Citología, Departamento de Morfología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala s/n, Casco de Santo Tomás, México, D.F. CP 11340, Mexico
| | - Ricardo Dzul-Caamal
- Laboratorio de Toxicología Ambiental, Departamento de Ingeniería en Sistemas Ambientales, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México, D.F. CP 07738, Mexico
| | - Esperanza Gallegos-Rangel
- Laboratorio de Toxicología Ambiental, Departamento de Ingeniería en Sistemas Ambientales, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México, D.F. CP 07738, Mexico
| | - María Lilia Domínguez-López
- Laboratorio de Inmunoquímica I, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala s/n, Casco de Santo Tomás, México, D.F. CP 11340, Mexico
| | - Ethel García-Latorre
- Laboratorio de Inmunoquímica I, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala s/n, Casco de Santo Tomás, México, D.F. CP 11340, Mexico
| | - Armando Vega-López
- Laboratorio de Toxicología Ambiental, Departamento de Ingeniería en Sistemas Ambientales, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México, D.F. CP 07738, Mexico.
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Fisher KE, Pillai RN, Kudchadkar RR, Rossi MR. Section IV: non-small cell lung cancer and malignant melanoma. Curr Probl Cancer 2014; 38:180-98. [PMID: 25281457 DOI: 10.1016/j.currproblcancer.2014.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Abstract
This paper highlights ongoing efforts toward Erythrina alkaloids, himandrine, tetrodotoxin, and thiopeptide antibiotics such as nosiheptide and describes representative spinoffs in biomedicine that emanated from the author’s research in synthetic organic chemistry.
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Affiliation(s)
- Marco A. Ciufolini
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
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