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Kharouf N, Flanagan TW, Alamodi AA, Al Hmada Y, Hassan SY, Shalaby H, Santourlidis S, Hassan SL, Haikel Y, Megahed M, Brodell RT, Hassan M. CD133-Dependent Activation of Phosphoinositide 3-Kinase /AKT/Mammalian Target of Rapamycin Signaling in Melanoma Progression and Drug Resistance. Cells 2024; 13:240. [PMID: 38334632 PMCID: PMC10854812 DOI: 10.3390/cells13030240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/10/2024] Open
Abstract
Melanoma frequently harbors genetic alterations in key molecules leading to the aberrant activation of PI3K and its downstream pathways. Although the role of PI3K/AKT/mTOR in melanoma progression and drug resistance is well documented, targeting the PI3K/AKT/mTOR pathway showed less efficiency in clinical trials than might have been expected, since the suppression of the PI3K/mTOR signaling pathway-induced feedback loops is mostly associated with the activation of compensatory pathways such as MAPK/MEK/ERK. Consequently, the development of intrinsic and acquired resistance can occur. As a solid tumor, melanoma is notorious for its heterogeneity. This can be expressed in the form of genetically divergent subpopulations including a small fraction of cancer stem-like cells (CSCs) and non-cancer stem cells (non-CSCs) that make the most of the tumor mass. Like other CSCs, melanoma stem-like cells (MSCs) are characterized by their unique cell surface proteins/stemness markers and aberrant signaling pathways. In addition to its function as a robust marker for stemness properties, CD133 is crucial for the maintenance of stemness properties and drug resistance. Herein, the role of CD133-dependent activation of PI3K/mTOR in the regulation of melanoma progression, drug resistance, and recurrence is reviewed.
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Affiliation(s)
- Naji Kharouf
- Institut National de la Santé et de la Recherche Médicale, University of Strasbourg, 67000 Strasbourg, France; (N.K.); (Y.H.)
- Department of Operative Dentistry and Endodontics, Dental Faculty, University of Strasbourg, 67000 Strasbourg, France
| | - Thomas W. Flanagan
- Department of Pharmacology and Experimental Therapeutics, LSU Health Sciences Center, New Orleans, LA 70112, USA;
| | | | - Youssef Al Hmada
- Department of Pathology, University of Mississippi Medical Center, Jackson, MS 39216, USA; (Y.A.H.); (R.T.B.)
| | - Sofie-Yasmin Hassan
- Department of Pharmacy, Faculty of Science, Heinrich-Heine University Duesseldorf, 40225 Dusseldorf, Germany;
| | - Hosam Shalaby
- Department of Urology, School of Medicine, Tulane University, New Orleans, LA 70112, USA;
| | - Simeon Santourlidis
- Epigenetics Core Laboratory, Institute of Transplantation Diagnostics and Cell Therapeutics, Medical Faculty, Heinrich-Heine University Duesseldorf, 40225 Duesseldorf, Germany;
| | - Sarah-Lilly Hassan
- Department of Chemistry, Faculty of Science, Heinrich-Heine University Duesseldorf, 40225 Dusseldorf, Germany;
| | - Youssef Haikel
- Institut National de la Santé et de la Recherche Médicale, University of Strasbourg, 67000 Strasbourg, France; (N.K.); (Y.H.)
- Department of Operative Dentistry and Endodontics, Dental Faculty, University of Strasbourg, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
| | - Mossad Megahed
- Clinic of Dermatology, University Hospital of Aachen, 52074 Aachen, Germany;
| | - Robert T. Brodell
- Department of Pathology, University of Mississippi Medical Center, Jackson, MS 39216, USA; (Y.A.H.); (R.T.B.)
| | - Mohamed Hassan
- Institut National de la Santé et de la Recherche Médicale, University of Strasbourg, 67000 Strasbourg, France; (N.K.); (Y.H.)
- Department of Operative Dentistry and Endodontics, Dental Faculty, University of Strasbourg, 67000 Strasbourg, France
- Research Laboratory of Surgery-Oncology, Department of Surgery, Tulane University School of Medicine, New Orleans, LA 70112, USA
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Hicks WH, Gattie LC, Traylor JI, Davar D, Najjar YG, Richardson DO TE, McBrayer SK, Abdullah KG. Matched three-dimensional organoids and two-dimensional cell lines of melanoma brain metastases mirror response to targeted molecular therapy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.18.576318. [PMID: 38328251 PMCID: PMC10849477 DOI: 10.1101/2024.01.18.576318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Purpose Despite significant advances in the treatment paradigm for patients with metastatic melanoma, melanoma brain metastasis (MBM) continues to represent a significant treatment challenge. The study of MBM is limited, in part, by shortcomings in existing preclinical models. Surgically eXplanted Organoids (SXOs) are ex vivo, three-dimensional cultures prepared from primary tissue samples with minimal processing that recapitulate genotypic and phenotypic features of parent tumors and are grown without artificial extracellular scaffolding. We aimed to develop the first matched patient-derived SXO and cell line models of MBM to investigate responses to targeted therapy. Methods MBM SXOs were created by a novel protocol incorporating techniques for establishing glioma and cutaneous melanoma organoids. A BRAFV600K-mutant and BRAF-wildtype MBM sample were collected directly from the operating room for downstream experiments. Organoids were cultured in an optimized culture medium without an artificial extracellular scaffold. Concurrently, matched patient-derived cell lines were created. Drug screens were conducted to assess treatment response in SXOs and cell lines. Results Organoid growth was observed within 3-4 weeks, and MBM SXOs retained histological features of the parent tissue, including pleomorphic epithelioid cells with abundant cytoplasm, large nuclei, focal melanin accumulation, and strong SOX10 positivity. After sufficient growth, organoids could be manually parcellated to increase the number of replicates. Matched SXOs and cell lines demonstrated sensitivity to BRAF and MEK inhibitors. Conclusion Here, we describe the creation of a scaffold-free organoid model of MBM. Further study using SXOs may improve the translational relevance of preclinical studies and enable the study of the metastatic melanoma tumor microenvironment.
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Affiliation(s)
- William H. Hicks
- Department of Neurosurgery, University of Pittsburgh School of Medicine, 200 Lothrop St, Pittsburgh, PA, 15213, USA
- Hillman Comprehensive Cancer Center, University of Pittsburgh Medical Center, 5115 Centre Ave, Pittsburgh, PA, 15232, USA
| | - Lauren C. Gattie
- Department of Neurosurgery, University of Pittsburgh School of Medicine, 200 Lothrop St, Pittsburgh, PA, 15213, USA
- Hillman Comprehensive Cancer Center, University of Pittsburgh Medical Center, 5115 Centre Ave, Pittsburgh, PA, 15232, USA
| | - Jeffrey I Traylor
- Children’s Medical Center Research Institute, University of Texas Southwestern Medical Center, 6000 Harry Hines Blvd, Dallas, TX, 75235, USA
- Department of Neurosurgery, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Diwakar Davar
- Hillman Comprehensive Cancer Center, University of Pittsburgh Medical Center, 5115 Centre Ave, Pittsburgh, PA, 15232, USA
| | - Yana G. Najjar
- Hillman Comprehensive Cancer Center, University of Pittsburgh Medical Center, 5115 Centre Ave, Pittsburgh, PA, 15232, USA
| | - Timothy E. Richardson DO
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, 11029, USA
| | - Samuel K. McBrayer
- Children’s Medical Center Research Institute, University of Texas Southwestern Medical Center, 6000 Harry Hines Blvd, Dallas, TX, 75235, USA
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Kalil G. Abdullah
- Department of Neurosurgery, University of Pittsburgh School of Medicine, 200 Lothrop St, Pittsburgh, PA, 15213, USA
- Hillman Comprehensive Cancer Center, University of Pittsburgh Medical Center, 5115 Centre Ave, Pittsburgh, PA, 15232, USA
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Boudreault J, Wang N, Ghozlan M, Lebrun JJ. Transforming Growth Factor-β/Smad Signaling Inhibits Melanoma Cancer Stem Cell Self-Renewal, Tumor Formation and Metastasis. Cancers (Basel) 2024; 16:224. [PMID: 38201651 PMCID: PMC10778361 DOI: 10.3390/cancers16010224] [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: 12/06/2023] [Revised: 12/20/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
The secreted protein transforming growth factor-beta (TGFβ) plays essential roles, ranging from cell growth regulation and cell differentiation in both normal and cancer cells. In melanoma, TGFβ acts as a potent tumor suppressor in melanoma by blocking cell cycle progression and inducing apoptosis. In the present study, we found TGFβ to regulate cancer stemness in melanoma through the Smad signaling pathway. We discovered that TGFβ/Smad signaling inhibits melanosphere formation in multiple melanoma cell lines and reduces expression of the CD133+ cancer stem cell subpopulation in a Smad3-dependent manner. Using preclinical models of melanoma, we further showed that preventing Smad3/4 signaling, by means of CRISPR knockouts, promoted both tumorigenesis and lung metastasis in vivo. Collectively, our results define new functions for the TGFβ/Smad signaling axis in melanoma stem-cell maintenance and open avenues for new therapeutic approaches to this disease.
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Affiliation(s)
| | | | | | - Jean-Jacques Lebrun
- Cancer Research Program, Department of Medicine, Research Institute of McGill University Health Center, Montreal, QU H4A 3J1, Canada; (J.B.); (N.W.); (M.G.)
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Wang P, Huang Y, Chen B, Li J, Chen Z, Liu L. Primary malignant melanoma of the urethra: Report of 9 cases in China. Asian J Surg 2024; 47:505-512. [PMID: 37330300 DOI: 10.1016/j.asjsur.2023.05.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/03/2023] [Accepted: 05/25/2023] [Indexed: 06/19/2023] Open
Abstract
BACKGROUND Primary urethral melanoma is extremely rare and malignant, and accounts for <1% of all melanoma cases. Here, we aimed to gain more insight into the pathological and follow-up outcomes of patients with this tumor type. METHODS We conducted a retrospective analysis of nine patients who had undergone comprehensive treatment at West China Hospital since 2009. Furthermore, we also performed a questionnaire-based survey to determine the quality of life and health statuses of surviving patients. RESULTS Most participants were women, and their ages ranged between 57 and 78 years (mean age: 64.9 years). Common clinical presentations included pigmentation, moles, and irregular neoplasms in the urethral meatus with or without bleeding. The final diagnosis was based on pathological and immunohistochemical examination results. All patients underwent regular follow-ups after receiving surgical or non-surgical therapy, such as chemotherapy or radiotherapy. DISCUSSION/CONCLUSION Our study revealed that pathological and immunohistochemical tests are crucial for precise diagnosis, especially in asymptomatic patients. Primary malignant urethral melanoma generally has a poor prognosis; therefore, early and accurate diagnosis is imperative. Timely surgical intervention and immunotherapy can help improve patient prognosis. Moreover, an optimistic outlook and family support may augment the clinical management of this disease.
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Affiliation(s)
- Puze Wang
- Department of Urology, West China Hospital, Sichuan University, Number 37 Guoxue Road, Chengdu, Sichuan Province, China
| | - Yin Huang
- Department of Urology, West China Hospital, Sichuan University, Number 37 Guoxue Road, Chengdu, Sichuan Province, China
| | - Bo Chen
- Department of Urology, West China Hospital, Sichuan University, Number 37 Guoxue Road, Chengdu, Sichuan Province, China
| | - Jin Li
- Department of Urology, West China Hospital, Sichuan University, Number 37 Guoxue Road, Chengdu, Sichuan Province, China
| | - Zeyu Chen
- Department of Urology, West China Hospital, Sichuan University, Number 37 Guoxue Road, Chengdu, Sichuan Province, China
| | - Liangren Liu
- Department of Urology, West China Hospital, Sichuan University, Number 37 Guoxue Road, Chengdu, Sichuan Province, China.
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Ou L, Liu S, Wang H, Guo Y, Guan L, Shen L, Luo R, Elder DE, Huang AC, Karakousis G, Miura J, Mitchell T, Schuchter L, Amaravadi R, Flowers A, Mou H, Yi F, Guo W, Ko J, Chen Q, Tian B, Herlyn M, Xu X. Patient-derived melanoma organoid models facilitate the assessment of immunotherapies. EBioMedicine 2023; 92:104614. [PMID: 37229906 PMCID: PMC10277922 DOI: 10.1016/j.ebiom.2023.104614] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Only a minority of melanoma patients experience durable responses to immunotherapies due to inter- and intra-tumoral heterogeneity in melanoma. As a result, there is a pressing need for suitable preclinical models to investigate resistance mechanisms and enhance treatment efficacy. METHODS Here, we report two different methods for generating melanoma patient-derived organoids (MPDOs), one is embedded in collagen gel, and the other is inlaid in Matrigel. MPDOs in Matrigel are used for assessing the therapeutic effects of anti-PD-1 antibodies (αPD-1), autochthonous tumor infiltrating lymphocytes (TILs), and small molecule compounds. MPDOs in collagen gel are used for evaluating the chemotaxis and migratory capacity of TILs. FINDING The MPDOs in collagen gel and Matrigel have similar morphology and immune cell composition to their parental melanoma tissues. MPDOs show inter- and intra-tumoral heterogeneity and contain diverse immune cells such as CD4+, CD8+ T, Treg, CD14+ monocytic, CD15+, and CD11b+ myeloid cells. The tumor microenvironment (TME) in MPDOs is highly immunosuppressive, and the lymphoid and myeloid lineages express similar levels of PD-1, PD-L1, and CTLA-4 as their parental melanoma tissues. Anti-PD-1 antibodies (αPD-1) reinvigorate CD8+ T cells and induce melanoma cell death in the MPDOs. TILs expanded by IL-2 and αPD-1 show significantly lower expression of TIM-3, better migratory capacity and infiltration of autochthonous MPDOs, and more effective killing of melanoma cells than TILs expanded by IL-2 alone or IL-2 with αCD3. A small molecule screen discovers that Navitoclax increases the cytotoxicity of TIL therapy. INTERPRETATION MPDOs may be used to test immune checkpoint inhibitors and cellular and targeted therapies. FUNDING This work was supported by the NIH grants CA114046, CA261608, CA258113, and the Tara Miller Melanoma Foundation.
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Affiliation(s)
- Lingling Ou
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China
| | - Shujing Liu
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Huaishan Wang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yeye Guo
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Lei Guan
- Department of Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Longbin Shen
- The First Affiliated Hospital of Jinan University, Guangzhou, 510632, China
| | - Ruhui Luo
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, China
| | - David E Elder
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Alexander C Huang
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Giorgos Karakousis
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - John Miura
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Tara Mitchell
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Lynn Schuchter
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Ravi Amaravadi
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Ahron Flowers
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Haiwei Mou
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Fan Yi
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Wei Guo
- Department of Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jina Ko
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Qing Chen
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Bin Tian
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | - Xiaowei Xu
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
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Nicolella HD, Ribeiro AB, Munari CC, Melo MR, Ozelin SD, da Silva LHD, Marquele-Oliveira F, Orenha RP, Veneziani RCS, Parreira RLT, Tavares DC. Antimelanoma effect of manool in 2D cell cultures and reconstructed human skin models. J Biochem Mol Toxicol 2023; 37:e23282. [PMID: 36541366 DOI: 10.1002/jbt.23282] [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: 03/28/2022] [Revised: 11/03/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022]
Abstract
Melanoma is the most aggressive and lethal type of skin cancer, characterized by therapeutic resistance. In this context, the present study aimed to investigate the cytotoxic potential of manool, a diterpene from Salvia officinalis L., in human (A375) and murine (B16F10) melanoma cell lines. The analysis of cytotoxicity using the XTT assay showed the lowest IC50 after 48 h of treatment with the manool, being 17.6 and 18.2 µg/ml for A375 and B16F10, respectively. A selective antiproliferative effect of manool was observed on the A375 cells based on the colony formation assay, showing an IC50 equivalent to 5.6 µg/ml. The manool treatments led to 43.5% inhibition of the A375 cell migration at a concentration of 5.0 µg/ml. However, it did not affect cell migration in the B16F10 cells. Cell cycle analysis revealed that the manool interfered in the cell cycle of the A375 cells, blocking the G2/M phase. No changes in the cell cycle were observed in the B16F10 cells. Interestingly, manool did not induce apoptosis in the A375 cells, but apoptosis was observed after treatment of the B16F10 cells. Additionally, manool showed an antimelanoma effect in a reconstructed human skin model. Furthermore, in silico studies, showed that manool is stabilized in the active sites of the tubulin dimer with comparable energy concerning taxol, indicating that both structures can inhibit the proliferation of cancer cells. Altogether, it is concluded that manool, through the modulation of the cell cycle, presents a selective antiproliferative activity and a potential antimelanoma effect.
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Medhin LB, Beasley AB, Warburton L, Amanuel B, Gray ES. Extracellular vesicles as a liquid biopsy for melanoma: Are we there yet? Semin Cancer Biol 2023; 89:92-98. [PMID: 36706847 DOI: 10.1016/j.semcancer.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/10/2023] [Accepted: 01/23/2023] [Indexed: 01/26/2023]
Abstract
Melanoma is the most aggressive form of skin cancer owing to its high propensity to metastasise in distant organs and develop resistance to treatment. The scarce treatment options available for melanoma underscore the need for biomarkers to guide treatment decisions. In this context, an attractive alternative to overcome the limitations of repeated tissue sampling is the analysis of peripheral blood samples, referred to as 'liquid biopsy'. In particular, the analysis of extracellular vesicles (EVs) has emerged as a promising candidate due to their role in orchestrating cancer dissemination, immune modulation, and drug resistance. As we gain insights into the role of EVs in cancer and melanoma their potential for clinical use is becoming apparent. Herein, we critically summarise the current evidence supporting EVs as biomarkers for melanoma diagnosis, prognostication, therapy response prediction, and drug resistance. EVs are proposed as a candidate biomarker for predicting therapeutic response to immune checkpoint inhibition. However, to realise the potential of EV analysis for clinical decision-making strong clinical validation is required, underscoring the need for further research in this area.
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Affiliation(s)
- Lidia B Medhin
- Centre for Precision Health, Edith Cowan University, Joondalup WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup WA 6027, Australia
| | - Aaron B Beasley
- Centre for Precision Health, Edith Cowan University, Joondalup WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup WA 6027, Australia
| | - Lydia Warburton
- Centre for Precision Health, Edith Cowan University, Joondalup WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup WA 6027, Australia; Department of Medical Oncology, Fiona Stanley Hospital, Murdoch, Australia
| | - Benhur Amanuel
- School of Medical and Health Sciences, Edith Cowan University, Joondalup WA 6027, Australia; Department of Anatomical Pathology PathWest, QEII Medical Centre, Nedlands WA 6009, Australia
| | - Elin S Gray
- Centre for Precision Health, Edith Cowan University, Joondalup WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup WA 6027, Australia.
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Lehmann J, Caduff N, Krzywińska E, Stierli S, Salas-Bastos A, Loos B, Levesque MP, Dummer R, Stockmann C, Münz C, Diener J, Sommer L. Escape from NK cell tumor surveillance by NGFR-induced lipid remodeling in melanoma. SCIENCE ADVANCES 2023; 9:eadc8825. [PMID: 36638181 PMCID: PMC9839334 DOI: 10.1126/sciadv.adc8825] [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: 05/06/2022] [Accepted: 12/09/2022] [Indexed: 05/27/2023]
Abstract
Metastatic disease is a major cause of death for patients with melanoma. Melanoma cells can become metastatic not only due to cell-intrinsic plasticity but also due to cancer-induced protumorigenic remodeling of the immune microenvironment. Here, we report that innate immune surveillance by natural killer (NK) cells is bypassed by human melanoma cells expressing the stem cell marker NGFR. Using in vitro and in vivo cytotoxic assays, we show that NGFR protects melanoma cells from NK cell-mediated killing and, furthermore, boosts metastasis formation in a mouse model with adoptively transferred human NK cells. Mechanistically, NGFR leads to down-regulation of NK cell activating ligands and simultaneous up-regulation of the fatty acid stearoyl-coenzyme A desaturase (SCD) in melanoma cells. Notably, pharmacological and small interfering RNA-mediated inhibition of SCD reverted NGFR-induced NK cell evasion in vitro and in vivo. Hence, NGFR orchestrates immune control antagonizing pathways to protect melanoma cells from NK cell clearance, which ultimately favors metastatic disease.
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Affiliation(s)
- Julia Lehmann
- University of Zurich, Institute of Anatomy, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Nicole Caduff
- University of Zurich, Institute of Experimental Immunology, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Ewelina Krzywińska
- University of Zurich, Institute of Anatomy, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Salome Stierli
- University of Zurich, Institute of Anatomy, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Adrian Salas-Bastos
- University of Zurich, Institute of Anatomy, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Benjamin Loos
- University of Zurich, Institute of Anatomy, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Mitchell P. Levesque
- University of Zurich Hospital, Department of Dermatology, Gloriastrasse 31, 8091 Zürich, Switzerland
| | - Reinhard Dummer
- University of Zurich Hospital, Department of Dermatology, Gloriastrasse 31, 8091 Zürich, Switzerland
| | - Christian Stockmann
- University of Zurich, Institute of Anatomy, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Christian Münz
- University of Zurich, Institute of Experimental Immunology, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Johanna Diener
- University of Zurich, Institute of Anatomy, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Lukas Sommer
- University of Zurich, Institute of Anatomy, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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9
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Liu YX, Chen YJ, Xu BW, Fu XQ, Ding WJ, Li SMA, Wang XQ, Wu JY, Wu Y, Dou X, Liu B, Yu ZL. Inhibition of STAT3 signaling contributes to the anti-melanoma effects of chrysoeriol. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 109:154572. [PMID: 36610164 DOI: 10.1016/j.phymed.2022.154572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 11/09/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Melanoma is an aggressive malignancy with a high mortality rate. Signal transducer and activator of transcription 3 (STAT3), an oncoprotein, is considered as an effective target for treating melanoma. Chrysoeriol is a flavonoid compound, and possesses anti-tumor activity in lung cancer, breast cancer and multiple myeloma; while whether it has anti-melanoma effects is still not known. Chrysoeriol has been shown to restrain STAT3 signaling in an inflammation mouse model. PURPOSE In this study, the anti-melanoma effects of chrysoeriol and the involvement of STAT3 signaling in these effects were investigated. STUDY DESIGN AND METHODS CCK8 assays, 5-ethynyl-2'-deoxyuridine (EdU) staining, Annexin V-FITC/PI staining, Western blot analyses of cleaved caspase-9 and wound healing assays were used to study the anti-melanoma effects of chrysoeriol in cell models. A B16F10 melanoma bearing mouse model was used to evaluate the in vivo anti-melanoma effects of chrysoeriol. Indicators of cell proliferation, cell apoptosis and angiogeneis in melanoma tissues were detected by immunohistochemistry (IHC) staining and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining. Immune cells in melanoma tissues were analyzed by flow cytometry. STAT3-overactivated cell models were used to investigate the involvement of STAT3 signaling in the anti-melanoma effects of chrysoeriol. Molecular dynamics (MD) simulations and surface plasmon resonance (SPR) assays were conducted to determine whether chrysoeriol binds to Src, an upstream kinase of STAT3. RESULTS The results of cell experiments showed that chrysoeriol dose-dependently inhibited viability, proliferation and migration of, and induced apoptosis in, A375 and B16F10 melanoma cells. Chrysoeriol inhibited the phosphorylation of STAT3, and downregulated the expression of STAT3-target genes involved in melanoma growth and metastasis. Mouse studies showed that chrysoeriol restrained melanoma growth and tumor-related angiogenesis, and altered compositions of immune cells in melanoma microenvironment. Chrysoeriol also inhibited STAT3 signaling in B16F10 allografts. Chrysoeriol's viability-inhibiting effects were attenuated by over-activating STAT3 in A375 cells. Furthermore, chrysoeriol bound to the protein kinase domain of Src, and suppressed Src phosphorylation in melanoma cells and tissues. CONCLUSION This study, for the first time, demonstrates that chrysoeriol has anti-melanoma effects, and these effects are partially due to inhibiting STAT3 signaling. Our findings indicate that chrysoeriol has the potential to be developed into an anti-melanoma agent.
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Affiliation(s)
- Yu-Xi Liu
- Consun Chinese Medicines Research Centre for Renal Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Ying-Jie Chen
- Consun Chinese Medicines Research Centre for Renal Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Bo-Wen Xu
- Consun Chinese Medicines Research Centre for Renal Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Xiu-Qiong Fu
- Consun Chinese Medicines Research Centre for Renal Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Wen-Jun Ding
- Department of Traditional Chinese Medicine, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Sze-Man Amy Li
- Consun Chinese Medicines Research Centre for Renal Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Xiao-Qi Wang
- Consun Chinese Medicines Research Centre for Renal Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Jia-Ying Wu
- Consun Chinese Medicines Research Centre for Renal Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Ying Wu
- Consun Chinese Medicines Research Centre for Renal Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Xiaobing Dou
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Bin Liu
- Department of Traditional Chinese Medicine, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
| | - Zhi-Ling Yu
- Consun Chinese Medicines Research Centre for Renal Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; Research and Development Centre for Natural Health Products, HKBU Institute for Research and Continuing Education, Shenzhen, China.
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10
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Azimnasab-Sorkhabi P, Soltani-Asl M, Kfoury JR, Algenstaedt P, Mehmetzade HF, Hashemi Aghdam Y. The impact of leptin and its receptor polymorphisms on type 1 diabetes in a population of northwest Iran. Ann Hum Biol 2022; 49:317-322. [PMID: 36218419 DOI: 10.1080/03014460.2022.2134453] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND Diabetes comprises a serious disease with significant growth in the number of cases in recent years. Here, we cover the gap in information between leptin (LEP) and type 1 diabetes in the Iranian population. AIM To recognise LEP G2548A and LEP receptor Q223R polymorphisms in Iranian people and their association with type 1 diabetes susceptibility. SUBJECTS AND METHODS Characteristics such as fasting blood sugar (FBS) were measured in 80 control non-diabetic individuals and 89 diabetic patients. Moreover, LEP G2548A and LEP receptor Q223R polymorphisms were genotyped using polymerase chain reaction-restriction fragment length polymorphism technique. RESULTS The frequency of the A allele was nearly three times greater in diabetes patients than in the control group. In addition, in the diabetes group, the AA genotype was five times greater than in the control group (p < 0.01). Furthermore, AA and AA + AG genotype models had higher FBS levels than the GG + AG and GG genotype models, respectively (p < 0.01). CONCLUSION The LEP G2548A polymorphism could be related to type 1 diabetes susceptibility, but not LEPR Q223R polymorphism in the Iranian population. Importantly, further studies are essential to examine the impact of LEP G2548A and LEPR Q223R polymorphisms in the endocrinology area.
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Affiliation(s)
- Parviz Azimnasab-Sorkhabi
- Department of Biology, Faculty of Science, Islamic Azad University, Iran.,Department of Surgery, School of Veterinary Medicine and Animal Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Maryam Soltani-Asl
- Department of Biology, Faculty of Science, Islamic Azad University, Iran.,Department of Surgery, School of Veterinary Medicine and Animal Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - José Roberto Kfoury
- Department of Surgery, School of Veterinary Medicine and Animal Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Petra Algenstaedt
- Medical Clinic and Polyclinic of University of Hamburg, Eppendorf University, Hamburg, Germany
| | | | - Yashar Hashemi Aghdam
- Department of Traumatology, Spine and Orthopedic Surgery, Asklepios Hospital Altona, Faculty of Medicine, University of Hamburg, Hamburg, Germany
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11
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In Vitro Photodynamic Treatment Modality for A375 Melanoma Cell Line Using a Sulphonated Aluminum Phthalocyanine Chloride-Photosensitizer-Gold Nanoparticle Conjugate. Pharmaceutics 2022; 14:pharmaceutics14112474. [PMID: 36432665 PMCID: PMC9696044 DOI: 10.3390/pharmaceutics14112474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/10/2022] [Accepted: 11/12/2022] [Indexed: 11/19/2022] Open
Abstract
Metastatic melanoma cancer stem cells are subpopulations that have been identified and linked to tumor progression, immunoevasive behavior, drug resistance, and metastasis, leading to a poor prognosis. Photodynamic therapy (PDT) is an approach to eradicate cancer through a photochemical process which directly generates reactive oxygen species (ROS). This study investigated the impact of PDT using an aluminum phthalocyanine gold nanoparticle (AlPcS4Cl-AuNP) conjugate for targeting melanoma stem cells. The isolated stem cells were irradiated at 673.2 nm with a radiant exposure of 5 J/cm2. Post-irradiation signs of cell death were determined using microscopy and biochemical assays. A possible enhanced effect of ROS in inducing cell death could be seen when AlPcS4Cl was conjugated to AuNPs. Nanoparticles as carriers promote the efficient cellular uptake of photosensitizers, enhancing organelle accumulation and the targeted therapy of cancerous cells. A biochemical assay revealed significant post-irradiation signs of cell death. The measurement of adenosine triphosphate (ATP) content revealed a decrease in cell proliferation. The study suggested an approach directed at expanding the knowledge on PDT to improve cancer treatment. Understanding the cell death mechanism through which ROS influence cancer stem cells (CSCs) is, therefore, useful for improving PDT efficiency and preventing tumor recurrence and metastasis.
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12
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Manukonda R, Attem J, Yenuganti VR, Kaliki S, Vemuganti GK. Exosomes in the visual system: New avenues in ocular diseases. Tumour Biol 2022; 44:129-152. [PMID: 35964221 DOI: 10.3233/tub-211543] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Exosomes are a subgroup of membrane-bound extracellular vesicles secreted by all cell types and present virtually in all biological fluids. The composition of exosomes in the same cell type varies in healthy and disease conditions. Hence, exosomes research is a prime focus area for clinical research in cancer and numerous age-related metabolic syndromes. Functions of exosomes include crucial cell-to-cell communication that mediates complex cellular processes, such as antigen presentation, stem cell differentiation, and angiogenesis. However, very few studies reported the presence and role of exosomes in normal physiological and pathological conditions of specialized ocular tissues of the eye and ocular cancers. The eye being a protected sense organ with unique connectivity with the rest of the body through the blood and natural passages, we believe that the role of exosomes in ocular tissues will significantly improve our understanding of ocular diseases and their interactions with the rest of the body. We present a review that highlights the existence and function of exosomes in various ocular tissues, their role in the progression of some of the neoplastic and non-neoplastic conditions of the eyes.
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Affiliation(s)
- Radhika Manukonda
- School of Medical Sciences, University of Hyderabad, Hyderabad, India.,The Operation Eyesight Universal Institute for Eye Cancer, LV Prasad Eye Institute, Hyderabad, Telangana, India.,Brien Holden Eye Research Center, L. V. Prasad Eye Institute, Hyderabad, Telangana, India
| | - Jyothi Attem
- School of Medical Sciences, University of Hyderabad, Hyderabad, India
| | - Vengala Rao Yenuganti
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Swathi Kaliki
- The Operation Eyesight Universal Institute for Eye Cancer, LV Prasad Eye Institute, Hyderabad, Telangana, India.,Brien Holden Eye Research Center, L. V. Prasad Eye Institute, Hyderabad, Telangana, India
| | - Geeta K Vemuganti
- School of Medical Sciences, University of Hyderabad, Hyderabad, India
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13
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Combined Therapy with Dacarbazine and Hyperthermia Induces Cytotoxicity in A375 and MNT-1 Melanoma Cells. Int J Mol Sci 2022; 23:ijms23073586. [PMID: 35408947 PMCID: PMC8998307 DOI: 10.3390/ijms23073586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 01/16/2023] Open
Abstract
Melanoma is a drug-resistant cancer, representing a serious challenge in cancer treatment. Dacarbazine (DTIC) is the standard drug in metastatic melanoma treatment, despite the poor results. Hyperthermia has been proven to potentiate chemotherapy. Hence, this work analyzed the combined action of hyperthermia and DTIC on A375 and MNT-1 cell lines. First, temperatures between 40 °C and 45 °C were tested. The effect of DTIC on cell viability was also investigated after exposures of 24, 48, and 72 h. Then, cells were exposed to 43 °C and to the respective DTIC IC10 or IC20 of each time exposure. Overall, hyperthermia reduced cell viability, however, 45 °C caused an excessive cell death (>90%). Combinational treatment revealed that hyperthermia potentiates DTIC’s effect, but it is dependent on the concentration and temperature used. Also, it has different mechanisms from the treatments alone, delaying A375 cells at the G2/M phase and MNT-1 cells at the S and G2/M phases. Intracellular reactive oxygen species (ROS) levels increased after treatment with hyperthermia, but the combined treatment showed no additional differences. Also, hyperthermia highly increased the number of A375 early apoptotic cells. These results suggest that combining hyperthermia and DTIC should be more explored to improve melanoma treatment.
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14
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Treatment-driven tumour heterogeneity and drug resistance: lessons from solid tumours. Cancer Treat Rev 2022; 104:102340. [DOI: 10.1016/j.ctrv.2022.102340] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 02/07/2023]
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15
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Rinonce HT, Sastri DJ, Trisnawati F, Kameswari B, Ferronika P, Irianiwati. The frequency and clinicopathological significance of NRAS mutations in primary cutaneous nodular melanoma in Indonesia. Cancer Rep (Hoboken) 2022; 5:e1454. [PMID: 34110110 PMCID: PMC8789608 DOI: 10.1002/cnr2.1454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 05/02/2021] [Accepted: 05/04/2021] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Melanoma is a lethal skin malignancy with a high risk of metastasis, which prompts a need for research on treatment targets and prognostic factors. Recent studies show that the presence of neuroblastoma RAS viral oncogene homolog (NRAS) mutation can influence cell growth in melanomas. The NRAS mutation, which stimulates the mitogen-activated protein kinase (MAPK) signaling pathway, is associated with a lower survival rate. However, evidence from Indonesia population is still very rare. Further understanding of the role of NRAS mutations in Indonesian melanoma cases will be crucial in developing new management strategies for melanoma patients with NRAS mutations. AIMS To explore the frequency of NRAS mutations and their clinicopathological associations in patients with primary nodular cutaneous melanoma in Central Java and Yogyakarta, Indonesia. METHODS AND RESULTS Fifty-one paraffin-embedded tissue samples were collected from primary nodular skin melanoma cases between 2011 and 2019 from the two largest referral hospitals in Yogyakarta and Central Java, Indonesia. The NRAS mutation status was evaluated using qualitative real-time polymerase chain reaction (qRT-PCR). The association of NRAS mutation was analyzed with the following: age, gender, location, lymph node metastasis, ulceration, mitotic index, tumor-infiltrating lymphocytes (TILs), necrosis, tumor thickness, lymphovascular invasion (LVI), and tumor size. NRAS mutations were detected in 10 (19.6%) samples and predominantly observed (60%) in exon 2 (G12). These mutations were significantly correlated with lymph node metastases (p = .000); however, they were not associated with other variables analyzed in this study. CONCLUSIONS The prevalence of NRAS mutations in primary nodular cutaneous melanoma cases from Indonesia is consistent with previous studies and is significantly associated with increased lymph node metastases. However, the predominant mutation detected in exon 2 (G12) is different from previous studies conducted in other countries. This suggests that melanoma cases in Javanese people have different characteristics from other ethnicities.
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Affiliation(s)
- Hanggoro Tri Rinonce
- Department of Anatomical Pathology, Faculty of Medicine, Public Health, and NursingUniversitas Gadjah Mada/ Dr. Sardjito HospitalSlemanYogyakartaIndonesia
| | - Deflen Jumatul Sastri
- Department of Anatomical Pathology, Faculty of Medicine, Public Health, and NursingUniversitas Gadjah Mada/ Dr. Sardjito HospitalSlemanYogyakartaIndonesia
| | - Fita Trisnawati
- Department of Anatomical Pathology, Faculty of Medicine, Public Health, and NursingUniversitas Gadjah Mada/ Dr. Sardjito HospitalSlemanYogyakartaIndonesia
| | - Bidari Kameswari
- Department of Anatomical Pathologydr. Soeradji Tirtonegoro HospitalKlatenCentral JavaIndonesia
| | - Paranita Ferronika
- Department of Anatomical Pathology, Faculty of Medicine, Public Health, and NursingUniversitas Gadjah Mada/ Dr. Sardjito HospitalSlemanYogyakartaIndonesia
| | - Irianiwati
- Department of Anatomical Pathology, Faculty of Medicine, Public Health, and NursingUniversitas Gadjah Mada/ Dr. Sardjito HospitalSlemanYogyakartaIndonesia
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16
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Salvador D, Bastos V, Oliveira H. Hyperthermia Enhances Doxorubicin Therapeutic Efficacy against A375 and MNT-1 Melanoma Cells. Int J Mol Sci 2021; 23:ijms23010035. [PMID: 35008457 PMCID: PMC8744762 DOI: 10.3390/ijms23010035] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 12/17/2021] [Accepted: 12/18/2021] [Indexed: 12/28/2022] Open
Abstract
Melanoma is the deadliest form of skin cancer, and its incidence has alarmingly increased in the last few decades, creating a need for novel treatment approaches. Thus, we evaluated the combinatorial effect of doxorubicin (DOX) and hyperthermia on A375 and MNT-1 human melanoma cell lines. Cells were treated with DOX for 24, 48, and 72 h and their viabilities were assessed. The effect of DOX IC10 and IC20 (combined at 43 °C for 30, 60, and 120 min) on cell viability was further analyzed. Interference on cell cycle dynamics, reactive oxygen species (ROS) production, and apoptosis upon treatment (with 30 min at 43 °C and DOX at the IC20 for 48 h) were analyzed by flow cytometry. Combined treatment significantly decreased cell viability, but not in all tested conditions, suggesting that the effect depends on the drug concentration and heat treatment duration. Combined treatment also mediated a G2/M phase arrest in both cell lines, as well as increasing ROS levels. Additionally, it induced early apoptosis in MNT-1 cells, while in A375 cells this effect was similar to the one caused by hyperthermia alone. These findings demonstrate that hyperthermia enhances DOX effect through cell cycle arrest, oxidative stress, and apoptotic cell death.
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17
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Remigante A, Zuccolini P, Barbieri R, Ferrera L, Morabito R, Gavazzo P, Pusch M, Picco C. NS-11021 Modulates Cancer-Associated Processes Independently of BK Channels in Melanoma and Pancreatic Duct Adenocarcinoma Cell Lines. Cancers (Basel) 2021; 13:6144. [PMID: 34885254 PMCID: PMC8656804 DOI: 10.3390/cancers13236144] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/02/2021] [Accepted: 12/04/2021] [Indexed: 11/16/2022] Open
Abstract
Potassium channels have emerged as regulators of carcinogenesis, thus introducing possible new therapeutic strategies in the fight against cancer. In particular, the large-conductance Ca2+-activated K+ channel, often referred to as BK channel, is involved in several cancer-associated processes. Here, we investigated the effects of different BK activators, NS-11021, NS-19504, and BMS-191011, in IGR39 (primary melanoma cell line) and Panc-1 (primary pancreatic duct carcinoma cell line), highly expressing the channel, and in IGR37 (metastatic melanoma cell line) that barely express BK. Our data showed that NS-11021 and NS-19504 potently activated BK channels in IGR39 and Panc-1 cells, while no effect on channel activation was detected in IGR37 cells. On the contrary, BK channel activator BMS-191011 was less effective. However, only NS-11021 showed significant effects in cancer-associated processes, such as cell survival, migration, and proliferation in these cancer cell lines. Moreover, NS-11021 led to an increase of intracellular Ca2+ concentration, independent of BK channel activation, thus complicating any interpretation of its role in the regulation of cancer-associated mechanisms. Overall, we conclude that the activation of the BK channel by itself is not sufficient to produce beneficial anti-cancer effects in the melanoma and PDAC cell lines examined. Importantly, our results raise an alarm flag regarding the use of presumably specific BK channel openers as anti-cancer agents.
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Affiliation(s)
- Alessia Remigante
- Biophysics Institute, National Research Council, 16149 Genoa, Italy; (A.R.); (P.Z.); (R.B.); (P.G.); (C.P.)
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy;
| | - Paolo Zuccolini
- Biophysics Institute, National Research Council, 16149 Genoa, Italy; (A.R.); (P.Z.); (R.B.); (P.G.); (C.P.)
| | - Raffaella Barbieri
- Biophysics Institute, National Research Council, 16149 Genoa, Italy; (A.R.); (P.Z.); (R.B.); (P.G.); (C.P.)
| | - Loretta Ferrera
- U.O.C. Genetica Medica, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Istituto Giannina Gaslini, 16147 Genoa, Italy;
| | - Rossana Morabito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy;
| | - Paola Gavazzo
- Biophysics Institute, National Research Council, 16149 Genoa, Italy; (A.R.); (P.Z.); (R.B.); (P.G.); (C.P.)
| | - Michael Pusch
- Biophysics Institute, National Research Council, 16149 Genoa, Italy; (A.R.); (P.Z.); (R.B.); (P.G.); (C.P.)
| | - Cristiana Picco
- Biophysics Institute, National Research Council, 16149 Genoa, Italy; (A.R.); (P.Z.); (R.B.); (P.G.); (C.P.)
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18
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Schrom S, Hebesberger T, Wallner SA, Anders I, Richtig E, Brandl W, Hirschmugl B, Garofalo M, Bernecker C, Schlenke P, Kashofer K, Wadsack C, Aigelsreiter A, Heitzer E, Riedl S, Zweytick D, Kretschmer N, Richtig G, Rinner B. MUG Mel3 Cell Lines Reflect Heterogeneity in Melanoma and Represent a Robust Model for Melanoma in Pregnancy. Int J Mol Sci 2021; 22:ijms222111318. [PMID: 34768746 PMCID: PMC8583216 DOI: 10.3390/ijms222111318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 12/22/2022] Open
Abstract
Melanomas are aggressive tumors with a high metastatic potential and an increasing incidence rate. They are known for their heterogeneity and propensity to easily develop therapy-resistance. Nowadays they are one of the most common cancers diagnosed during pregnancy. Due to the difficulty in balancing maternal needs and foetal safety, melanoma is challenging to treat. The aim of this study was to provide a potential model system for the study of melanoma in pregnancy and to illustrate melanoma heterogeneity. For this purpose, a pigmented and a non-pigmented section of a lymph node metastasis from a pregnant patient were cultured under different conditions and characterized in detail. All four culture conditions exhibited different phenotypic, genotypic as well as tumorigenic properties, and resulted in four newly established melanoma cell lines. To address treatment issues, especially in pregnant patients, the effect of synthetic human lactoferricin-derived peptides was tested successfully. These new BRAF-mutated MUG Mel3 cell lines represent a valuable model in melanoma heterogeneity and melanoma pregnancy research. Furthermore, treatment with anti-tumor peptides offers an alternative to conventionally used therapeutic options—especially during pregnancy.
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Affiliation(s)
- Silke Schrom
- Division of Biomedical Research, Medical University of Graz, 8036 Graz, Austria; (S.S.); (T.H.); (S.A.W.); (I.A.)
| | - Thomas Hebesberger
- Division of Biomedical Research, Medical University of Graz, 8036 Graz, Austria; (S.S.); (T.H.); (S.A.W.); (I.A.)
| | - Stefanie Angela Wallner
- Division of Biomedical Research, Medical University of Graz, 8036 Graz, Austria; (S.S.); (T.H.); (S.A.W.); (I.A.)
| | - Ines Anders
- Division of Biomedical Research, Medical University of Graz, 8036 Graz, Austria; (S.S.); (T.H.); (S.A.W.); (I.A.)
| | - Erika Richtig
- Department of Dermatology, Medical University of Graz, 8036 Graz, Austria;
| | - Waltraud Brandl
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria; (W.B.); (B.H.); (C.W.)
| | - Birgit Hirschmugl
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria; (W.B.); (B.H.); (C.W.)
- BioTechMed-Graz, 8010 Graz, Austria; (S.R.); (D.Z.)
| | - Mariangela Garofalo
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35122 Padova, Italy;
| | - Claudia Bernecker
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, 8036 Graz, Austria; (C.B.); (P.S.)
| | - Peter Schlenke
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, 8036 Graz, Austria; (C.B.); (P.S.)
| | - Karl Kashofer
- Diagnostic and Research Institute of Pathology, Medical University of Graz, 8036 Graz, Austria; (K.K.); (A.A.)
| | - Christian Wadsack
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria; (W.B.); (B.H.); (C.W.)
- BioTechMed-Graz, 8010 Graz, Austria; (S.R.); (D.Z.)
| | - Ariane Aigelsreiter
- Diagnostic and Research Institute of Pathology, Medical University of Graz, 8036 Graz, Austria; (K.K.); (A.A.)
| | - Ellen Heitzer
- Institute of Human Genetics, Diagnostic and Research Center for Molecular BioMedicine, Medical University of Graz, 8036 Graz, Austria;
| | - Sabrina Riedl
- BioTechMed-Graz, 8010 Graz, Austria; (S.R.); (D.Z.)
- Institute of Molecular Biosciences, Biophysics Division, University of Graz, 8010 Graz, Austria
- BioHealth, 8010 Graz, Austria
| | - Dagmar Zweytick
- BioTechMed-Graz, 8010 Graz, Austria; (S.R.); (D.Z.)
- Institute of Molecular Biosciences, Biophysics Division, University of Graz, 8010 Graz, Austria
- BioHealth, 8010 Graz, Austria
| | - Nadine Kretschmer
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, 8010 Graz, Austria;
| | - Georg Richtig
- Division of Oncology, Medical University of Graz, 8036 Graz, Austria;
| | - Beate Rinner
- Division of Biomedical Research, Medical University of Graz, 8036 Graz, Austria; (S.S.); (T.H.); (S.A.W.); (I.A.)
- BioTechMed-Graz, 8010 Graz, Austria; (S.R.); (D.Z.)
- Correspondence: ; Tel.: +43-316-3857-3524
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19
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Liu J, Yu W, Gao F, Qi S, Du J, Ma X, Zhang Y, Zheng J, Su J. CCND1 copy number increase and cyclin D1 expression in acral melanoma: a comparative study of fluorescence in situ hybridization and immunohistochemistry in a Chinese cohort. Diagn Pathol 2021; 16:60. [PMID: 34225728 PMCID: PMC8259423 DOI: 10.1186/s13000-021-01116-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 06/07/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND CCND1 copy number increase is characteristic of acral melanoma and is useful in distinguishing benign and malignant acral melanocytic lesions. Increase of the gene copy number may result in protein overexpression. This raises the possibility that detection of high expression of cyclin D1 by immunohistochemistry (IHC) may be used as a surrogate for direct evaluation of increase in the CCND1 gene copy number. METHODS We examined increases in CCND1 copy number with fluorescence in situ hybridization (FISH), and examined cyclin D1 protein expression with IHC in 61 acral melanomas. RESULTS Using FISH, 29 acral melanomas (29/61, 47.5%) showed increase in the CCND1 copy number, including 8 (8/61, 13.1%) which showed low-level increase in the CCND1 copy number and 21 (21/61, 34.4%) with high-level increase in the CCND1 copy number. By analysis of IHC, the median IHC score was 15% (range: 1-80%) in acral melanomas with no CCND1 copy number alteration. In acral melanomas with low-level CCND1 copy number increase, the median IHC score was 25% (range: 3-90%). In acral melanomas with high-level CCND1 copy number increase, the median IHC score was 60% (range: 1-95%). Comparing FISH and IHC, cyclin D1 protein expression level has no corelation with the CCND1 copy number in acral melanomas which have no CCND1 copy number alteration and low-level CCND1 copy number increase (P = 0.108). Cyclin D1 protein expression level correlated positively with CCND1 copy number in acral melanomas with high-level CCND1 copy number increase (P = 0.038). The sensitivity, specificity and positive predictive value of using cyclin D1 IHC to predict CCND1 FISH result was 72.4, 62.5 and 63.6%. Increase in CCND1 copy number was associated with Breslow thickness in invasive acral melanoma. CONCLUSION High-level increase in the CCND1 copy number can induce high cyclin D1 protein expression in acral melanomas. However low-level increase and normal CCND1 copy number have no obvious correlation with protein expression. Cyclin D1 IHC cannot serve as a surrogate for CCND1 FISH in acral melanomas.
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Affiliation(s)
- Jianying Liu
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Wenjuan Yu
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Fei Gao
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Shuangshuang Qi
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Juan Du
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Xiaolong Ma
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Yan Zhang
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Jie Zheng
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Jing Su
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
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20
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Mitsiogianni M, Anestopoulos I, Kyriakou S, Trafalis DT, Franco R, Pappa A, Panayiotidis MI. Benzyl and phenethyl isothiocyanates as promising epigenetic drug compounds by modulating histone acetylation and methylation marks in malignant melanoma. Invest New Drugs 2021; 39:1460-1468. [PMID: 33963962 DOI: 10.1007/s10637-021-01127-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/04/2021] [Indexed: 11/30/2022]
Abstract
Melanoma is an aggressive skin cancer with increasing incidence rates globally. On the other hand, isothiocyanates are derived from cruciferous vegetables and are known to exert a wide range of anti-cancer activities including, among others, their ability to interact with the epigenome in order to supress cancer progression. The aim of this study was to determine the role of phenethyl and benzyl isothiocyanates in modulating histone acetylation and methylation as a potential epigenetic therapeutic strategy in an in vitro model of malignant melanoma. We report that both isothiocyanates induced cytotoxicity and influenced acetylation and methylation status of specific lysine residues on histones H3 and H4 by modulating the expression of various histone acetyltransferases, deacetylases and methyltransferases in malignant melanoma cells. Our data highlight novel insights on the interaction of isothiocyanates with components of the histone regulatory machinery in order to exert their anti-cancer action in malignant melanoma.
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Affiliation(s)
- Melina Mitsiogianni
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne, UK
| | - Ioannis Anestopoulos
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.,The Cyprus School of Molecular Medicine, Nicosia, Cyprus
| | - Sotiris Kyriakou
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.,The Cyprus School of Molecular Medicine, Nicosia, Cyprus
| | - Dimitrios T Trafalis
- Laboratory of Pharmacology, Clinical Pharmacology Unit, Medical School, National & Kapodistrian University of Athens, Athens, Greece
| | - Rodrigo Franco
- Redox Biology Centre, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.,School of Veterinary Medicine & Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Aglaia Pappa
- Department of Molecular Biology & Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Mihalis I Panayiotidis
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne, UK. .,Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus. .,The Cyprus School of Molecular Medicine, Nicosia, Cyprus.
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21
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Ostojić J, Yoon YS, Sonntag T, Nguyen B, Vaughan JM, Shokhirev M, Montminy M. Transcriptional co-activator regulates melanocyte differentiation and oncogenesis by integrating cAMP and MAPK/ERK pathways. Cell Rep 2021; 35:109136. [PMID: 34010639 DOI: 10.1016/j.celrep.2021.109136] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 02/25/2021] [Accepted: 04/23/2021] [Indexed: 01/07/2023] Open
Abstract
The cyclic AMP pathway promotes melanocyte differentiation by activating CREB and the cAMP-regulated transcription co-activators 1-3 (CRTC1-3). Differentiation is dysregulated in melanomas, although the contributions of CRTC proteins is unclear. We report a selective differentiation impairment in CRTC3 KO melanocytes and melanoma cells, due to downregulation of oculo-cutaneous albinism II (OCA2) and block of melanosome maturation. CRTC3 stimulates OCA2 expression by binding to CREB on a conserved enhancer, a regulatory site for pigmentation and melanoma risk. CRTC3 is uniquely activated by ERK1/2-mediated phosphorylation at Ser391 and by low levels of cAMP. Phosphorylation at Ser391 is constitutively elevated in human melanoma cells with hyperactivated ERK1/2 signaling; knockout of CRTC3 in this setting impairs anchorage-independent growth, migration, and invasiveness, whereas CRTC3 overexpression supports cell survival in response to the mitogen-activated protein kinase (MAPK) inhibitor vemurafenib. As melanomas expressing gain-of-function mutations in CRTC3 are associated with reduced survival, our results suggest that CRTC3 inhibition may provide therapeutic benefit in this setting.
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Affiliation(s)
- Jelena Ostojić
- Clayton Foundation Laboratories for Peptide Biology, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
| | - Young-Sil Yoon
- Clayton Foundation Laboratories for Peptide Biology, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Tim Sonntag
- Clayton Foundation Laboratories for Peptide Biology, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Billy Nguyen
- Clayton Foundation Laboratories for Peptide Biology, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Joan M Vaughan
- Clayton Foundation Laboratories for Peptide Biology, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Maxim Shokhirev
- Clayton Foundation Laboratories for Peptide Biology, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Marc Montminy
- Clayton Foundation Laboratories for Peptide Biology, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
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22
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Muniz TP, Sorotsky H, Kanjanapan Y, Rose AAN, Araujo DV, Fortuna A, Ghazarian D, Kamil ZS, Pugh T, Mah M, Thiagarajah M, Torti D, Spreafico A, Hogg D. Genomic Landscape of Malignant Peripheral Nerve Sheath Tumor‒Like Melanoma. J Invest Dermatol 2021; 141:2470-2479. [PMID: 33831431 DOI: 10.1016/j.jid.2021.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 10/21/2022]
Abstract
Malignant peripheral nerve sheath tumor (MPNST)-like melanoma is a rare malignancy with overlapping characteristics of both neural sarcoma and melanoma. Although the genomics of cutaneous melanoma has been extensively studied, those of MPNST-like melanoma have not. To characterize the genomic landscape of MPNST-like melanoma, we performed a single-center, retrospective cohort study at a tertiary academic cancer center. Consecutive patients with a confirmed histologic diagnosis of MPNST-like melanoma were screened, and those whose tissues were locally available were included in this analysis. Archival tissue from six patients (eight samples) was submitted for whole-exome and transcriptome sequencing analysis. We compared these data with available genomic studies of cutaneous melanoma and MPNST. NF1 was altered (mutated, deleted, or amplified) in 67% of patients. Genes related to cell cycle regulation were frequently altered, with frequent deletion of ZNF331, which, to the best of our knowledge, has not been previously described in cutaneous melanoma. The serine protease inhibitor SERPINB4 was deleted in 100% of the patients. We show that MPNST-like melanoma presents overlapping genomic features with cutaneous melanoma and MPNST, but it is unique by the frequency of loss of function of ZNF331 and SERPINB4.
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Affiliation(s)
- Thiago P Muniz
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada.
| | - Hadas Sorotsky
- Institute of Oncology, Chaim Sheba Medical Center at Tel-Hashomer, Ramant Gan, Israel
| | - Yada Kanjanapan
- Department of Medical Oncology, Canberra Region Cancer Centre, Canberra, Australia
| | - April A N Rose
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada; Gerald Bronfman Department of Oncology, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada; Segal Cancer Centre, Jewish General Hospital, Montreal, Quebec, Canada
| | - Daniel V Araujo
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada; Department of Medical Oncology, Hospital de Base, Sao Jose do Rio Preto, Brazil
| | - Alexander Fortuna
- Translational Genomics Laboratory, Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Danny Ghazarian
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada; Department of Laboratory Medicine & Pathobiology, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Zaid Saeed Kamil
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada; Department of Laboratory Medicine & Pathobiology, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Trevor Pugh
- Translational Genomics Laboratory, Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Michelle Mah
- Translational Genomics Laboratory, Ontario Institute for Cancer Research, Toronto, Ontario, Canada; Trillium Health Partners, Genetics Laboratory, Mississauga, Ontario, Canada
| | - Madhuran Thiagarajah
- Translational Genomics Laboratory, Ontario Institute for Cancer Research, Toronto, Ontario, Canada; Department of Laboratory Medicine, Unity Health Toronto, Toronto, Ontario, Canada
| | - Dax Torti
- Translational Genomics Laboratory, Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Anna Spreafico
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada; Phase 1 Drug Development Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - David Hogg
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada
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23
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Osrodek M, Wozniak M. Targeting Genome Stability in Melanoma-A New Approach to an Old Field. Int J Mol Sci 2021; 22:3485. [PMID: 33800547 PMCID: PMC8036881 DOI: 10.3390/ijms22073485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 02/07/2023] Open
Abstract
Despite recent groundbreaking advances in the treatment of cutaneous melanoma, it remains one of the most treatment-resistant malignancies. Due to resistance to conventional chemotherapy, the therapeutic focus has shifted away from aiming at melanoma genome stability in favor of molecularly targeted therapies. Inhibitors of the RAS/RAF/MEK/ERK (MAPK) pathway significantly slow disease progression. However, long-term clinical benefit is rare due to rapid development of drug resistance. In contrast, immune checkpoint inhibitors provide exceptionally durable responses, but only in a limited number of patients. It has been increasingly recognized that melanoma cells rely on efficient DNA repair for survival upon drug treatment, and that genome instability increases the efficacy of both MAPK inhibitors and immunotherapy. In this review, we discuss recent developments in the field of melanoma research which indicate that targeting genome stability of melanoma cells may serve as a powerful strategy to maximize the efficacy of currently available therapeutics.
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Affiliation(s)
| | - Michal Wozniak
- Department of Molecular Biology of Cancer, Medical University of Lodz, 92-215 Lodz, Poland;
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24
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Liu SR, Yang X, Qi L, Zhu Z, Ji YZ. SMARCA4 promotes benign skin malignant transformation into melanoma through Adherens junction signal transduction. Clin Transl Oncol 2021; 23:591-600. [PMID: 32720055 DOI: 10.1007/s12094-020-02453-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 07/04/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE Melanoma is a malignant skin tumor, and its incidence is rising. To explore the specific differences in benign and malignant melanoma at the genetic level, we performed a series of bioinformatics analyses, including differential gene analysis, co-expression analysis, enrichment analysis, and regulatory prediction. METHODS The microarray data of benign and malignant melanocytes were downloaded from GEO, and 1917 differential genes were obtained by differential analysis (p < 0.05). Weighted gene co-expression network analysis obtained three functional barrier modules. The essential genes of each module are SMARTA4, HECA, and C1R. RESULTS The results of the enrichment analysis showed that the dysfunctional module gene was mainly associated with RNA splicing and Adherens junction. Through the pivotal analysis of ncRNA, it was found that miR-448, miR-152-3p, and miR-302b-3p essentially regulate three modules, which we consider to be critical regulators. In the pivot analysis of TF, more control modules include ARID3A, E2F1, E2F3, and E2F8. CONCLUSIONS We believe that the regulator (miR-448, miR-152-3p, miR-302b-3p) regulates the expression of the core gene SMARCA4, which in turn affects the signal transduction of the Adherens junction. It eventually leads to the deterioration of benign skin spasms into melanoma.
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Affiliation(s)
- S-R Liu
- Department of Dermatology, The Second Hospital of Jilin University, No.218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, People's Republic of China
| | - X Yang
- Department of Urology, The Second Hospital of Jilin University, Changchun, 130041, Jilin, People's Republic of China
| | - L Qi
- Department of Dermatology, The Second Hospital of Jilin University, No.218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, People's Republic of China
| | - Z Zhu
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, 130041, Jilin, People's Republic of China
| | - Y-Z Ji
- Department of Dermatology, The Second Hospital of Jilin University, No.218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, People's Republic of China.
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25
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Mitsiogianni M, Kyriakou S, Anestopoulos I, Trafalis DT, Deligiorgi MV, Franco R, Pappa A, Panayiotidis MI. An Evaluation of the Anti-Carcinogenic Response of Major Isothiocyanates in Non-Metastatic and Metastatic Melanoma Cells. Antioxidants (Basel) 2021; 10:antiox10020284. [PMID: 33668498 PMCID: PMC7918923 DOI: 10.3390/antiox10020284] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/07/2021] [Accepted: 02/10/2021] [Indexed: 12/28/2022] Open
Abstract
Malignant melanoma is one of the most deadly types of solid cancers, a property mainly attributed to its highly aggressive metastatic form. On the other hand, different classes of isothiocyanates, a class of phytochemicals, present in cruciferous vegetables have been characterized by considerable anti-cancer activity in both in vitro and in vivo experimental models. In the current study, we investigated the anti-cancer response of five isothiocyanates in an in vitro model of melanoma consisting of non-metastatic (A375, B16F-10) and metastatic (VMM1, Hs294T) malignant melanoma as well as non-melanoma epidermoid carcinoma (A431) and non-tumorigenic melanocyte-neighboring keratinocyte (HaCaT) cells. Our aim was to compare different endpoints of cytotoxicity (e.g., reactive oxygen species, intracellular glutathione content, cell cycle growth arrest, apoptosis and necrosis) descriptive of an anti-cancer response between non-metastatic and metastatic melanoma as well as non-melanoma epidermoid carcinoma and non-tumorigenic cells. Our results showed that exposure to isothiocyanates induced an increase in intracellular reactive oxygen species and glutathione contents between non-metastatic and metastatic melanoma cells. The distribution of cell cycle phases followed a similar pattern in a manner where non-metastatic and metastatic melanoma cells appeared to be growth arrested at the G2/M phase while elevated levels of metastatic melanoma cells were shown to be at sub G1 phase, an indicator of necrotic cell death. Finally, metastatic melanoma cells were more sensitive apoptosis and/or necrosis as higher levels were observed compared to non-melanoma epidermoid carcinoma and non-tumorigenic cells. In general, non-melanoma epidermoid carcinoma and non-tumorigenic cells were more resistant under any experimental exposure condition. Overall, our study provides further evidence for the potential development of isothiocyanates as promising anti-cancer agents against non-metastatic and metastatic melanoma cells, a property specific for these cells and not shared by non-melanoma epidermoid carcinoma or non-tumorigenic melanocyte cells.
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Affiliation(s)
- Melina Mitsiogianni
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne NE1 8ST, UK;
| | - Sotiris Kyriakou
- Department of Electron Microscopy & Molecular Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia 2371, Cyprus; (S.K.); (I.A.)
- The Cyprus School of Molecular Medicine, P.O. Box 23462, Nicosia 1683, Cyprus
| | - Ioannis Anestopoulos
- Department of Electron Microscopy & Molecular Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia 2371, Cyprus; (S.K.); (I.A.)
- The Cyprus School of Molecular Medicine, P.O. Box 23462, Nicosia 1683, Cyprus
| | - Dimitrios T. Trafalis
- Laboratory of Pharmacology, Medical School, National & Kapodistrian University of Athens, 11527 Athens, Greece; (D.T.T.); (M.V.D.)
| | - Maria V. Deligiorgi
- Laboratory of Pharmacology, Medical School, National & Kapodistrian University of Athens, 11527 Athens, Greece; (D.T.T.); (M.V.D.)
| | - Rodrigo Franco
- Redox Biology Centre, University of Nebraska-Lincoln, Lincoln, NE 68583, USA;
- Department of Veterinary Medicine & Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Aglaia Pappa
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece;
| | - Mihalis I. Panayiotidis
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne NE1 8ST, UK;
- Department of Electron Microscopy & Molecular Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia 2371, Cyprus; (S.K.); (I.A.)
- The Cyprus School of Molecular Medicine, P.O. Box 23462, Nicosia 1683, Cyprus
- Correspondence: ; Tel.: +357-223-92626
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26
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Pietrowska M, Zebrowska A, Gawin M, Marczak L, Sharma P, Mondal S, Mika J, Polańska J, Ferrone S, Kirkwood JM, Widlak P, Whiteside TL. Proteomic profile of melanoma cell-derived small extracellular vesicles in patients' plasma: a potential correlate of melanoma progression. J Extracell Vesicles 2021; 10:e12063. [PMID: 33613873 PMCID: PMC7876545 DOI: 10.1002/jev2.12063] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/07/2020] [Accepted: 01/12/2021] [Indexed: 02/04/2023] Open
Abstract
Molecular profiling of small extracellular vesicles (sEV) isolated from plasma of cancer patients emerges as promising strategy for biomarkers discovery. We investigated the proteomic profiles of sEV immunoselected using anti-CSPG4 antibodies from 15 melanoma patients' plasma. The proteomes of sEV separated into melanoma cell-derived (MTEX) and non-malignant cell-derived (NMTEX) were compared using high-resolution mass spectrometry. Paired analysis identified the MTEX-associated profile of 16 proteins that discriminated MTEX from NMETEX. We also identified the MTEX profile that discriminated between seven patients with no evidence of melanoma (NED) after therapy and eight with progressive disease (PD). Among 75 MTEX proteins overexpressed in PD patients, PDCD6IP (ALIX) had the highest discriminating value, while CNTN1 (contactin-1) was upregulated only in MTEX of NED patients. This is the first report documenting that proteomes of tumour-derived sEV in patients' plasma discriminate cancer from non-cancer and identify proteins with potential to serve as prognostic biomarkers in melanoma.
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Affiliation(s)
- Monika Pietrowska
- Maria Sklodowska‐Curie National Research Institute of OncologyGliwicePoland
| | - Aneta Zebrowska
- Maria Sklodowska‐Curie National Research Institute of OncologyGliwicePoland
| | - Marta Gawin
- Maria Sklodowska‐Curie National Research Institute of OncologyGliwicePoland
| | - Lukasz Marczak
- European Center for Bioinformatics and GenomicsInstitute of Bioorganic Chemistry PASPoznanPoland
| | - Priyanka Sharma
- UPMC Hillman Cancer CenterUniversity of Pittsburgh Cancer InstitutePittsburghPennsylvaniaUSA
| | - Sujan Mondal
- UPMC Hillman Cancer CenterUniversity of Pittsburgh Cancer InstitutePittsburghPennsylvaniaUSA
| | - Justyna Mika
- Department of Data Science and Engineering, Silesian University of TechnologyGliwicePoland
| | - Joanna Polańska
- Department of Data Science and Engineering, Silesian University of TechnologyGliwicePoland
| | - Soldano Ferrone
- Department of SurgeryHarvard Medical School, Massachusetts General HospitalBostonMassachusettsUSA
| | - John M. Kirkwood
- UPMC Hillman Cancer CenterUniversity of Pittsburgh Cancer InstitutePittsburghPennsylvaniaUSA,Department of MedicineUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Piotr Widlak
- Maria Sklodowska‐Curie National Research Institute of OncologyGliwicePoland
| | - Theresa L. Whiteside
- UPMC Hillman Cancer CenterUniversity of Pittsburgh Cancer InstitutePittsburghPennsylvaniaUSA,Department of PathologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
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27
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Zhou X, He J, Wang Q, Ma T. MiRNA-128-3p Restrains Malignant Melanoma Cell Malignancy by Targeting NTRK3. Front Oncol 2021; 10:538894. [PMID: 33575204 PMCID: PMC7871904 DOI: 10.3389/fonc.2020.538894] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 12/14/2020] [Indexed: 11/13/2022] Open
Abstract
The functions of non-coding RNA, including microRNA (miRNA), have attracted considerable attention in the field of oncology, In this report, we examined the roles and molecular mechanisms of miR-128-3p, as related to the biological behaviors of malignant melanoma (MM). We found that miR-128-3p was expressed in low levels in these MM cells and may serve as a tumor suppressor by inhibiting proliferation, migration, and invasion, as well as inducing apoptosis in these MM cells. Moreover, neurotrophin receptor 3 (NTRK3), which serves as an oncogene that can enhance malignant behaviors of MM cells, was up-regulated in MM cells. Our current survey disclosed a complementary binding between miR-128-3p and the NTRK3 3' untranslated regions (3'-UTR), while luciferase activities of NTRK3 3'-UTR were restrained by miR-128-3p in 293T cells. The effects of pre-miR-128-3p and sh-NTRK3 as well as anti-miR-128-3p and NTRK3(+) appeared to function synergistically in producing malignant progression. Moreover, there were possible to have counteracted effects for pre-miR-128-3p and NTRK3(+) in malignant progression. These findings established that miR-128-3p can function as a tumor suppressor by inhibiting carcinogenesis of the oncogene, NTRK3. Collectively, miR-128-3p and NTRK3 genes participate in modulating the malignant behavior of MM, and may represent new therapeutic targets for MM.
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Affiliation(s)
- Xinxin Zhou
- Academy of Traditional Chinese Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Jiayuan He
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China
| | - Qingyuan Wang
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China
| | - Teng Ma
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China
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28
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Izraely S, Ben-Menachem S, Sagi-Assif O, Meshel T, Malka S, Telerman A, Bustos MA, Ramos RI, Pasmanik-Chor M, Hoon DSB, Witz IP. The melanoma brain metastatic microenvironment: aldolase C partakes in shaping the malignant phenotype of melanoma cells - a case of inter-tumor heterogeneity. Mol Oncol 2020; 15:1376-1390. [PMID: 33274599 PMCID: PMC8096793 DOI: 10.1002/1878-0261.12872] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/22/2020] [Accepted: 12/01/2020] [Indexed: 12/14/2022] Open
Abstract
Previous studies indicated that microglia cells upregulate the expression of aldolase C (ALDOC) in melanoma cells. The present study using brain‐metastasizing variants from three human melanomas explores the functional role of ALDOC in the formation and maintenance of melanoma brain metastasis (MBM). ALDOC overexpression impacted differentially the malignant phenotype of these three variants. In the first variant, ALDOC overexpression promoted cell viability, adhesion to and transmigration through a layer of brain endothelial cells, and amplified brain micrometastasis formation. The cross‐talk between this MBM variant and microglia cells promoted the proliferation and migration of the latter cells. In sharp contrast, ALDOC overexpression in the second brain‐metastasizing melanoma variant reduced or did not affect the same malignancy features. In the third melanoma variant, ALDOC overexpression augmented certain characteristics of malignancy and reduced others. The analysis of biological functions and disease pathways in the ALDOC overexpressing variants clearly indicated that ALDOC induced the expression of tumor progression promoting genes in the first variant and antitumor progression properties in the second variant. Overall, these results accentuate the complex microenvironment interactions between microglia cells and MBM, and the functional impact of intertumor heterogeneity. Since intertumor heterogeneity imposes a challenge in the planning of cancer treatment, we propose to employ the functional response of tumors with an identical histology, to a particular drug or the molecular signature of this response, as a predictive indicator of response/nonresponse to this drug.
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Affiliation(s)
- Sivan Izraely
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Science, Tel Aviv University, Israel
| | - Shlomit Ben-Menachem
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Science, Tel Aviv University, Israel
| | - Orit Sagi-Assif
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Science, Tel Aviv University, Israel
| | - Tsipi Meshel
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Science, Tel Aviv University, Israel
| | - Sapir Malka
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Science, Tel Aviv University, Israel
| | - Alona Telerman
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Science, Tel Aviv University, Israel
| | - Matias A Bustos
- Department of Translational Molecular Medicine, John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Romela Irene Ramos
- Department of Translational Molecular Medicine, John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Metsada Pasmanik-Chor
- Bioinformatics Unit, The George S. Wise Faculty of Life Science, Tel Aviv University, Israel
| | - Dave S B Hoon
- Department of Translational Molecular Medicine, John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Isaac P Witz
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Science, Tel Aviv University, Israel
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29
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RAGE Signaling in Melanoma Tumors. Int J Mol Sci 2020; 21:ijms21238989. [PMID: 33256110 PMCID: PMC7730603 DOI: 10.3390/ijms21238989] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 12/18/2022] Open
Abstract
Despite recent progresses in its treatment, malignant cutaneous melanoma remains a cancer with very poor prognosis. Emerging evidences suggest that the receptor for advance glycation end products (RAGE) plays a key role in melanoma progression through its activation in both cancer and stromal cells. In tumors, RAGE activation is fueled by numerous ligands, S100B and HMGB1 being the most notable, but the role of many other ligands is not well understood and should not be underappreciated. Here, we provide a review of the current role of RAGE in melanoma and conclude that targeting RAGE in melanoma could be an approach to improve the outcomes of melanoma patients.
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30
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Farag AK, Hassan AH, Chung KS, Lee JH, Gil HS, Lee KT, Roh EJ. Diarylurea derivatives comprising 2,4-diarylpyrimidines: Discovery of novel potential anticancer agents via combined failed-ligands repurposing and molecular hybridization approaches. Bioorg Chem 2020; 103:104121. [DOI: 10.1016/j.bioorg.2020.104121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 05/19/2020] [Accepted: 07/20/2020] [Indexed: 12/13/2022]
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Lazar I, Fabre B, Feng Y, Khateb A, Turko P, Martinez Gomez JM, Frederick DT, Levesque MP, Feld L, Zhang G, Zhang T, James B, Shklover J, Avitan-Hersh E, Livneh I, Scortegagna M, Brown K, Larsson O, Topisirovic I, Wolfenson H, Herlyn M, Flaherty K, Dummer R, Ronai ZA. SPANX Control of Lamin A/C Modulates Nuclear Architecture and Promotes Melanoma Growth. Mol Cancer Res 2020; 18:1560-1573. [PMID: 32571981 PMCID: PMC7541784 DOI: 10.1158/1541-7786.mcr-20-0291] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/19/2020] [Accepted: 06/15/2020] [Indexed: 02/06/2023]
Abstract
Mechanisms regulating nuclear organization control fundamental cellular processes, including the cell and chromatin organization. Their disorganization, including aberrant nuclear architecture, has been often implicated in cellular transformation. Here, we identify Lamin A, among proteins essential for nuclear architecture, as SPANX (sperm protein associated with the nucleus on the X chromosome), a cancer testis antigen previously linked to invasive tumor phenotypes, interacting protein in melanoma. SPANX interaction with Lamin A was mapped to the immunoglobulin fold-like domain, a region critical for Lamin A function, which is often mutated in laminopathies. SPANX downregulation in melanoma cell lines perturbed nuclear organization, decreased cell viability, and promoted senescence-associated phenotypes. Moreover, SPANX knockdown (KD) in melanoma cells promoted proliferation arrest, a phenotype mediated in part by IRF3/IL1A signaling. SPANX KD in melanoma cells also prompted the secretion of IL1A, which attenuated the proliferation of naïve melanoma cells. Identification of SPANX as a nuclear architecture complex component provides an unexpected insight into the regulation of Lamin A and its importance in melanoma. IMPLICATIONS: SPANX, a testis protein, interacts with LMNA and controls nuclear architecture and melanoma growth.
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Affiliation(s)
- Ikrame Lazar
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Bertrand Fabre
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Yongmei Feng
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | - Ali Khateb
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Patrick Turko
- Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | | | | | - Mitchell P Levesque
- Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | - Lea Feld
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Gao Zhang
- The Wistar Institute, Philadelphia, Pennsylvania
| | - Tongwu Zhang
- Laboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, Maryland
| | - Brian James
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | - Jeny Shklover
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Emily Avitan-Hersh
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Ido Livneh
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Marzia Scortegagna
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | - Kevin Brown
- Laboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, Maryland
| | - Ola Larsson
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Ivan Topisirovic
- Lady Davis Institute, Sir Mortimer B. Davis Jewish General Hospital, Gerald Bronfman Department of Oncology, Departments of Experimental Medicine and Biochemistry, McGill University, Montreal, Quebec, Canada
| | - Haguy Wolfenson
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | | | - Keith Flaherty
- Massachusetts General Hospital Cancer Center, Boston, Massachusetts
| | - Reinhard Dummer
- Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | - Ze'ev A Ronai
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California.
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Inactivating p53 is essential for nerve growth factor receptor to promote melanoma-initiating cell-stemmed tumorigenesis. Cell Death Dis 2020; 11:550. [PMID: 32686661 PMCID: PMC7371866 DOI: 10.1038/s41419-020-02758-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022]
Abstract
Nerve growth factor receptor (NGFR, CD271, or p75NTR) is highly expressed in melanoma-initiating cells (MICs) and is critical for their proliferation and tumorigenesis, and yet the underlying mechanism(s) remain incompletely understood. We previously showed that NGFR inhibits p53 activity in a negative feedback manner in various cancer cells. Here we report that this feedback inhibition of p53 by NGFR plays an essential role in maintaining the sphere formation (stem-like phenotype) and proliferation of MICs, and in promoting MIC-derived melanoma growth in vivo. Knockdown of NGFR markedly reduced the size and number of spheroid formation of melanoma cells, which can be rescued by ectopically expressed NGFR. This reduction was also reversed by depleting p53. Consistently, knockdown of NGFR led to the suppression of MIC-derived xenograft tumor growth by inducing the p53 pathway. These results demonstrate that the NGFR-p53 feedback loop is essential for maintaining MIC stem-like phenotype and MIC-derived tumorigenesis, and further validates NGFR as a potential target for developing a molecule-based therapy against melanoma.
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Immunotherapy in the Treatment of Metastatic Melanoma: Current Knowledge and Future Directions. J Immunol Res 2020; 2020:9235638. [PMID: 32671117 PMCID: PMC7338969 DOI: 10.1155/2020/9235638] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/24/2020] [Accepted: 06/08/2020] [Indexed: 02/08/2023] Open
Abstract
Melanoma is one of the most immunologic malignancies based on its higher prevalence in immune-compromised patients, the evidence of brisk lymphocytic infiltrates in both primary tumors and metastases, the documented recognition of melanoma antigens by tumor-infiltrating T lymphocytes and, most important, evidence that melanoma responds to immunotherapy. The use of immunotherapy in the treatment of metastatic melanoma is a relatively late discovery for this malignancy. Recent studies have shown a significantly higher success rate with combination of immunotherapy and chemotherapy, radiotherapy, or targeted molecular therapy. Immunotherapy is associated to a panel of dysimmune toxicities called immune-related adverse events that can affect one or more organs and may limit its use. Future directions in the treatment of metastatic melanoma include immunotherapy with anti-PD1 antibodies or targeted therapy with BRAF and MEK inhibitors.
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Rauwerdink DJW, Molina G, Frederick DT, Sharova T, van der Hage J, Cohen S, Boland GM. Mixed Response to Immunotherapy in Patients with Metastatic Melanoma. Ann Surg Oncol 2020; 27:3488-3497. [PMID: 32472413 PMCID: PMC7410859 DOI: 10.1245/s10434-020-08657-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Indexed: 12/13/2022]
Abstract
Background Immunotherapy has improved overall survival in metastatic melanoma. Response to therapy can be difficult to evaluate as the traditionally used RECIST 1.1 criteria do not capture heterogeneous responses. Here we describe the clinical characterization of melanoma patients with a clinically defined mixed response to immunotherapy. Methods This was a single institution, retrospective analysis of stage IV melanoma patients who received first-line anti-CTLA-4, anti-PD1, or combination anti-CTLA-4/anti-PD1. Therapy response was assessed via clinical definitions, which consisted of cross-sectional imaging combined with clinical exam. Course of disease, clinicopathological characteristics, and management in patients with a mixed clinical response were analyzed.
Results In 292 patients (anti-CTLA4 = 63; anti-PD1 = 148, anti-CTLA4/anti-PD1 = 81), 103 were responders (35%), 64 mixed responders (22%), and 125 patients had progressive disease (43%). Of patients with a mixed response, 56% eventually had response to therapy (mixed response followed by response, MR–R), while 31% progressed on therapy (MR–NR). MR–NR patients had higher median LDH (p < 0.01), 3 or more organ sites with metastases (p < 0.01), and more frequently had M1d disease (p < 0.01). Mixed responders who underwent surgery (n = 20) had a significantly longer mean OS compared to patients who did not undergo surgery (6.9 years, 95% CI 6.2–7.6 vs. 6.0 years, 95% CI 4.6–7.3, p = 0.02). Discussion Mixed response to immunotherapy in metastatic melanoma was not uncommon in our cohort (22%). Clinical characteristics associated with progression of disease after initial mixed response included higher LDH, brain metastases, and ≥ 3 organ sites with metastases. Surgical treatment for highly selected patients with a mixed response was associated with improved outcomes.
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Affiliation(s)
- Daan Jan Willem Rauwerdink
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Department of Surgery, Leiden University Medical Center, Leiden University, Leiden, RC, The Netherlands
| | - George Molina
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Dennie Tompers Frederick
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Tanya Sharova
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jos van der Hage
- Department of Surgery, Leiden University Medical Center, Leiden University, Leiden, RC, The Netherlands
| | - Sonia Cohen
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Genevieve Marie Boland
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. .,Division of Surgical Oncology, Department of Surgery, Massachusetts General Hospital, Yawkey Center for Outpatient Care, Boston, MA, USA.
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Qian P, Linbo L, Xiaomei Z, Hui P. Circ_0002770, acting as a competitive endogenous RNA, promotes proliferation and invasion by targeting miR-331-3p in melanoma. Cell Death Dis 2020; 11:264. [PMID: 32327630 PMCID: PMC7181653 DOI: 10.1038/s41419-020-2444-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 03/28/2020] [Accepted: 03/31/2020] [Indexed: 12/02/2022]
Abstract
Melanoma is a kind of tumor that originates from melanocytes and is characterized by chemoresistance and distant metastasis. Although the complete pathogenesis of melanoma remains unclear, increasing evidence suggests that circular RNAs (circRNAs) may be involved. In the present study, we identified a circular RNA, circ_0002770, which is produced from the well-known oncogene MDM2, and was sharply increased in melanoma and correlated with a poor prognosis. Knockdown of circ_0002770 suppressed melanoma cell invasion, migration and proliferation. Mechanistically, circ_0002770 acted as a sponge of miR-331-3p and could indirectly regulate DUSP5 and TGFBR1. Inhibition of miR-331-3p reversed the inhibitory effect of si-circ_0002770 on melanoma cell proliferation and invasion. In vivo evidence further confirmed that silencing circ_0002770 inhibited melanoma tumor formation. In conclusion, circ_0002770 facilitated melanoma cell proliferation, invasion and migration by sponging miR-331-3p and modulating DUSP5 and TGFBR1.
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Affiliation(s)
- Peng Qian
- Department of Plastic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshedong Road, Zhengzhou, Henan Province, 450052, China
| | - Liu Linbo
- Department of Plastic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshedong Road, Zhengzhou, Henan Province, 450052, China
| | - Zhai Xiaomei
- Department of Plastic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshedong Road, Zhengzhou, Henan Province, 450052, China
| | - Pei Hui
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshedong Road, Zhengzhou, Henan Province, 450052, China.
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36
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Klinke DJ, Torang A. An Unsupervised Strategy for Identifying Epithelial-Mesenchymal Transition State Metrics in Breast Cancer and Melanoma. iScience 2020; 23:101080. [PMID: 32371374 PMCID: PMC7200934 DOI: 10.1016/j.isci.2020.101080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/24/2020] [Accepted: 04/14/2020] [Indexed: 02/07/2023] Open
Abstract
Digital cytometry aims to identify different cell types in the tumor microenvironment, with the current focus on immune cells. Yet, identifying how changes in tumor cell phenotype, such as the epithelial-mesenchymal transition, influence the immune contexture is emerging as an important question. To extend digital cytometry, we developed an unsupervised feature extraction and selection strategy to capture functional plasticity tailored to breast cancer and melanoma separately. Specifically, principal component analysis coupled with resampling helped develop gene expression-based state metrics that characterize differentiation within an epithelial to mesenchymal-like state space and independently correlate with metastatic potential. First developed using cell lines, the orthogonal state metrics were refined to exclude the contributions of normal fibroblasts and provide tissue-level state estimates using bulk tissue RNA-seq measures. The resulting metrics for differentiation state aim to inform a more holistic view of how the malignant cell phenotype influences the immune contexture within the tumor microenvironment. Unsupervised strategy to generate epithelial and mesenchymal state metrics Refined metrics for use with bulk RNA-seq data by removing normal fibroblasts genes Validated state predictions against independent measures of metastatic potential Breast cancer and melanoma share more common genes in de-differentiated metrics
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Affiliation(s)
- David J Klinke
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV, USA; Department of Microbiology, Immunology and Cell Biology, West Virginia University, Morgantown, WV, USA; WVU Cancer Institute, West Virginia University, Morgantown, WV, USA.
| | - Arezo Torang
- Amsterdam UMC, University of Amsterdam, Laboratory for Experimental Oncology and Radiobiology, Center for Experimental and Molecular Medicine, Cancer Center Amsterdam, Amsterdam, the Netherlands; Oncode Institute, UMC, University of Amsterdam, Amsterdam, the Netherlands
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37
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Mitsiogianni M, Trafalis DT, Franco R, Zoumpourlis V, Pappa A, Panayiotidis MI. Sulforaphane and iberin are potent epigenetic modulators of histone acetylation and methylation in malignant melanoma. Eur J Nutr 2020; 60:147-158. [PMID: 32215717 DOI: 10.1007/s00394-020-02227-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 03/09/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVE(S) Growing evidence supports that isothiocyanates exert a wide range of bioactivities amongst of which is their capacity to interact with the epigenetic machinery in various cancers including melanoma. Our aim was to characterise the effect of sulforaphane and iberin on histone acetylation and methylation as a potential anti-melanoma strategy. METHODS We have utilised an in vitro model of malignant melanoma [consisting of human (A375, Hs294T, VMM1) and murine (B16F-10) melanoma cell lines as well as a non-melanoma (A431) and a non-tumorigenic immortalised keratinocyte (HaCaT) cell line] exposed to sulforaphane or iberin. Cell viability was evaluated by the Alamar blue assay whilst total histone deacetylases and acetyltransferases activities were determined by the Epigenase HDAC Activity/Inhibition and EpiQuik HAT Activity/Inhibition assay kits, respectively. The expression levels of specific histone deacetylases and acetyltransferases together with those of lysine acetylation and methylation marks were obtained by western immunoblotting. RESULTS Overall, both sulforaphane and iberin were able to (1) reduce cell viability, (2) decrease total histone deacetylase activity and (3) modulate the expression levels of various histone deacetylases as well as acetyl and methyl transferases thus modulating the acetylation and methylation status of specific lysine residues on histones 3 and 4 in malignant melanoma cells. CONCLUSIONS Our findings highlight novel insights as to how sulforaphane and iberin differentially regulate the epigenetic response in ways compatible with their anticancer action in malignant melanoma.
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Affiliation(s)
- Melina Mitsiogianni
- Faculty of Health and Life Sciences, Department of Applied Sciences, Group of Translational Biosciences, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Dimitrios T Trafalis
- Laboratory of Pharmacology, Clinical Pharmacology Unit, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Rodrigo Franco
- Redox Biology Centre, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
- School of Veterinary Medicine & Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Vasilis Zoumpourlis
- Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation, 11635, Athens, Greece
| | - Aglaia Pappa
- Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100, Alexandroupolis, Greece
| | - Mihalis I Panayiotidis
- Faculty of Health and Life Sciences, Department of Applied Sciences, Group of Translational Biosciences, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK.
- Department of Electron Microscopy and Molecular Pathology, The Cyprus Institute of Neurology and Genetics, 2371, Nicosia, Cyprus.
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38
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Flavone-based arylamides as potential anticancers: Design, synthesis and in vitro cell-based/cell-free evaluations. Eur J Med Chem 2020; 187:111965. [DOI: 10.1016/j.ejmech.2019.111965] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/10/2019] [Accepted: 12/10/2019] [Indexed: 12/24/2022]
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Deniz AAH, Abdik EA, Abdik H, Aydın S, Şahin F, Taşlı PN. Zooming in across the Skin: A Macro-to-Molecular Panorama. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1247:157-200. [DOI: 10.1007/5584_2019_442] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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40
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Sun Q, Lee W, Mohri Y, Takeo M, Lim CH, Xu X, Myung P, Atit RP, Taketo MM, Moubarak RS, Schober M, Osman I, Gay DL, Saur D, Nishimura EK, Ito M. A novel mouse model demonstrates that oncogenic melanocyte stem cells engender melanoma resembling human disease. Nat Commun 2019; 10:5023. [PMID: 31685822 PMCID: PMC6828673 DOI: 10.1038/s41467-019-12733-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 09/20/2019] [Indexed: 02/06/2023] Open
Abstract
Melanoma, the deadliest skin cancer, remains largely incurable at advanced stages. Currently, there is a lack of animal models that resemble human melanoma initiation and progression. Recent studies using a Tyr-CreER driven mouse model have drawn contradictory conclusions about the potential of melanocyte stem cells (McSCs) to form melanoma. Here, we employ a c-Kit-CreER-driven model that specifically targets McSCs to show that oncogenic McSCs are a bona fide source of melanoma that expand in the niche, and then establish epidermal melanomas that invade into the underlying dermis. Further, normal Wnt and Endothelin niche signals during hair anagen onset are hijacked to promote McSC malignant transformation during melanoma induction. Finally, molecular profiling reveals strong resemblance of murine McSC-derived melanoma to human melanoma in heterogeneity and gene signatures. These findings provide experimental validation of the human melanoma progression model and key insights into the transformation and heterogeneity of McSC-derived melanoma. Currently, few mouse models exist to recapitulate human melanomagenesis. Here, the authors establish a c-Kit-CreER-driven model to target melanocyte stem cells (McSCs) and show that oncogenic McSCs give rise to epidermal melanoma that invade into the dermis, similar to human melanoma.
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Affiliation(s)
- Qi Sun
- The Ronald O. Perelman Department of Dermatology, New York University, School of Medicine, New York, NY, 10016, USA.,Department of Cell Biology, New York University, School of Medicine, New York, NY, 10016, USA
| | - Wendy Lee
- The Ronald O. Perelman Department of Dermatology, New York University, School of Medicine, New York, NY, 10016, USA.,Department of Cell Biology, New York University, School of Medicine, New York, NY, 10016, USA
| | - Yasuaki Mohri
- Department of Stem Cell Biology, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Makoto Takeo
- The Ronald O. Perelman Department of Dermatology, New York University, School of Medicine, New York, NY, 10016, USA.,Department of Cell Biology, New York University, School of Medicine, New York, NY, 10016, USA
| | - Chae Ho Lim
- The Ronald O. Perelman Department of Dermatology, New York University, School of Medicine, New York, NY, 10016, USA.,Department of Cell Biology, New York University, School of Medicine, New York, NY, 10016, USA
| | - Xiaowei Xu
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Peggy Myung
- Department of Dermatology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Radhika P Atit
- Department of Biology, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - M Mark Taketo
- Division of Experimental Therapeutics, Graduate School of Medicine, Kyoto University, Sakyo, Kyoto, 606-8501, Japan
| | - Rana S Moubarak
- Department of Pathology, New York University, School of Medicine, New York, NY, 10016, USA
| | - Markus Schober
- The Ronald O. Perelman Department of Dermatology, New York University, School of Medicine, New York, NY, 10016, USA.,Department of Cell Biology, New York University, School of Medicine, New York, NY, 10016, USA
| | - Iman Osman
- The Ronald O. Perelman Department of Dermatology, New York University, School of Medicine, New York, NY, 10016, USA
| | - Denise L Gay
- Inserm UMR_967, CEA/DRF/IBFJ/iRCM/LRTS, 92265, Fontenay-aux-Roses cedex, France
| | - Dieter Saur
- Division of Translational Cancer Research, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), 69120, Heidelberg, Germany.,Institute of Translational Cancer Research and Department of Medicine II, School of Medicine, Klinikum rechts der Isar, Technische Universität München, 81675, München, Germany
| | - Emi K Nishimura
- Department of Stem Cell Biology, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Mayumi Ito
- The Ronald O. Perelman Department of Dermatology, New York University, School of Medicine, New York, NY, 10016, USA. .,Department of Cell Biology, New York University, School of Medicine, New York, NY, 10016, USA.
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Surman M, Stępień E, Przybyło M. Melanoma-Derived Extracellular Vesicles: Focus on Their Proteome. Proteomes 2019; 7:proteomes7020021. [PMID: 31086060 PMCID: PMC6630787 DOI: 10.3390/proteomes7020021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/30/2019] [Accepted: 05/06/2019] [Indexed: 12/17/2022] Open
Abstract
Malignant melanoma is one of the most aggressive types of cancer, and its incidence is increasing rapidly each year. Despite the extensive research into improved diagnostic and treatment methods, early detection and disease constraint still present significant challenges. As successful isolation protocols have been developed, extracellular vesicles (EVs) have become the subject of extensive investigation in terms of their role in cancer progression and as a possible source of disease biomarkers. Besides functional studies, quantitative and qualitative proteomics have recently emerged as promising tools for the advancement of melanoma biomarkers. Nevertheless, the amount of data concerning the proteome of melanoma-derived EVs is still very limited. In this review we cover the current knowledge on protein content of melanoma-derived EVs, with a focus on their potential role in the development and progression of melanomas.
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Affiliation(s)
- Magdalena Surman
- Department of Glycoconjugate Biochemistry, Institute of Zoology and Biomedical Research, Jagiellonian University, Gronostajowa 9, 30-387 Krakow, Poland.
| | - Ewa Stępień
- Department of Medical Physics, M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland.
| | - Małgorzata Przybyło
- Department of Glycoconjugate Biochemistry, Institute of Zoology and Biomedical Research, Jagiellonian University, Gronostajowa 9, 30-387 Krakow, Poland.
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42
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Margue C, Philippidou D, Kozar I, Cesi G, Felten P, Kulms D, Letellier E, Haan C, Kreis S. Kinase inhibitor library screening identifies synergistic drug combinations effective in sensitive and resistant melanoma cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:56. [PMID: 30728057 PMCID: PMC6364417 DOI: 10.1186/s13046-019-1038-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 01/13/2019] [Indexed: 12/19/2022]
Abstract
Background Melanoma is the most aggressive and deadly form of skin cancer with increasing case numbers worldwide. The development of inhibitors targeting mutated BRAF (found in around 60% of melanoma patients) has markedly improved overall survival of patients with late-stage tumors, even more so when combined with MEK inhibitors targeting the same signaling pathway. However, invariably patients become resistant to this targeted therapy resulting in rapid progression with treatment-refractory disease. The purpose of this study was the identification of new kinase inhibitors that do not lead to the development of resistance in combination with BRAF inhibitors (BRAFi), or that could be of clinical benefit as a 2nd line treatment for late-stage melanoma patients that have already developed resistance. Methods We have screened a 274-compound kinase inhibitor library in 3 BRAF mutant melanoma cell lines (each one sensitive or made resistant to 2 distinct BRAFi). The screening results were validated by dose-response studies and confirmed the killing efficacies of many kinase inhibitors. Two different tools were applied to investigate and quantify potential synergistic effects of drug combinations: the Chou-Talalay method and the Synergyfinder application. In order to exclude that resistance to the new treatments might occur at later time points, synergistic combinations were administered to fluorescently labelled parental and resistant cells over a period of > 10 weeks. Results Eight inhibitors targeting Wee1, Checkpoint kinase 1/2, Aurora kinase, MEK, Polo-like kinase, PI3K and Focal adhesion kinase killed melanoma cells synergistically when combined with a BRAFi. Additionally, combination of a Wee1 and Chk inhibitor showed synergistic killing effects not only on sensitive cell lines, but also on intrinsically BRAFi- and treatment induced-resistant melanoma cells. First in vivo studies confirmed these observations. Interestingly, continuous treatment with several of these drugs, alone or in combination, did not lead to emergence of resistance. Conclusions Here, we have identified new, previously unexplored (in the framework of BRAFi resistance) inhibitors that have an effect not only on sensitive but also on BRAFi-resistant cells. These promising combinations together with the new immunotherapies could be an important step towards improved 1st and 2nd line treatments for late-stage melanoma patients. Electronic supplementary material The online version of this article (10.1186/s13046-019-1038-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christiane Margue
- Life Sciences Research Unit, University of Luxembourg, 6, av. du Swing, L-4367, Belvaux, Luxembourg
| | - Demetra Philippidou
- Life Sciences Research Unit, University of Luxembourg, 6, av. du Swing, L-4367, Belvaux, Luxembourg
| | - Ines Kozar
- Life Sciences Research Unit, University of Luxembourg, 6, av. du Swing, L-4367, Belvaux, Luxembourg
| | - Giulia Cesi
- Life Sciences Research Unit, University of Luxembourg, 6, av. du Swing, L-4367, Belvaux, Luxembourg
| | - Paul Felten
- Life Sciences Research Unit, University of Luxembourg, 6, av. du Swing, L-4367, Belvaux, Luxembourg
| | - Dagmar Kulms
- Experimental Dermatology, Department of Dermatology, Technical University Dresden, Dresden, Germany
| | - Elisabeth Letellier
- Life Sciences Research Unit, University of Luxembourg, 6, av. du Swing, L-4367, Belvaux, Luxembourg
| | - Claude Haan
- Life Sciences Research Unit, University of Luxembourg, 6, av. du Swing, L-4367, Belvaux, Luxembourg
| | - Stephanie Kreis
- Life Sciences Research Unit, University of Luxembourg, 6, av. du Swing, L-4367, Belvaux, Luxembourg.
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43
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Natural products hybrids: 3,5,4′-Trimethoxystilbene-5,6,7-trimethoxyflavone chimeric analogs as potential cytotoxic agents against diverse human cancer cells. Eur J Med Chem 2019; 161:559-580. [DOI: 10.1016/j.ejmech.2018.10.062] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/25/2018] [Accepted: 10/28/2018] [Indexed: 12/12/2022]
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44
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Ahmed F, Haass NK. Microenvironment-Driven Dynamic Heterogeneity and Phenotypic Plasticity as a Mechanism of Melanoma Therapy Resistance. Front Oncol 2018; 8:173. [PMID: 29881716 PMCID: PMC5976798 DOI: 10.3389/fonc.2018.00173] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/03/2018] [Indexed: 12/11/2022] Open
Abstract
Drug resistance constitutes a major challenge in designing melanoma therapies. Microenvironment-driven tumor heterogeneity and plasticity play a key role in this phenomenon. Melanoma is highly heterogeneous with diverse genomic alterations and expression of different biological markers. In addition, melanoma cells are highly plastic and capable of adapting quickly to changing microenvironmental conditions. These contribute to variations in therapy response and durability between individual melanoma patients. In response to changing microenvironmental conditions, like hypoxia and nutrient starvation, proliferative melanoma cells can switch to an invasive slow-cycling state. Cells in this state are more aggressive and metastatic, and show increased intrinsic drug resistance. During continuous treatment, slow-cycling cells are enriched within the tumor and give rise to a new proliferative subpopulation with increased drug resistance, by exerting their stem cell-like behavior and phenotypic plasticity. In melanoma, the proliferative and invasive states are defined by high and low microphthalmia-associated transcription factor (MITF) expression, respectively. It has been observed that in MITFhigh melanomas, inhibition of MITF increases the efficacy of targeted therapies and delays the acquisition of drug resistance. Contrarily, MITF is downregulated in melanomas with acquired drug resistance. According to the phenotype switching theory, the gene expression profile of the MITFlow state is predominantly regulated by WNT5A, AXL, and NF-κB signaling. Thus, different combinations of therapies should be effective in treating different phases of melanoma, such as the combination of targeted therapies with inhibitors of MITF expression during the initial treatment phase, but with inhibitors of WNT5A/AXL/NF-κB signaling during relapse.
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Affiliation(s)
- Farzana Ahmed
- The University of Queensland Diamantina Institute, Translational Research Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Nikolas K. Haass
- The University of Queensland Diamantina Institute, Translational Research Institute, The University of Queensland, Brisbane, QLD, Australia
- Discipline of Dermatology, University of Sydney, Sydney, NSW, Australia
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Vlčková K, Vachtenheim J, Réda J, Horák P, Ondrušová L. Inducibly decreased MITF levels do not affect proliferation and phenotype switching but reduce differentiation of melanoma cells. J Cell Mol Med 2018; 22:2240-2251. [PMID: 29369499 PMCID: PMC5867098 DOI: 10.1111/jcmm.13506] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 11/16/2017] [Indexed: 12/13/2022] Open
Abstract
Melanoma arises from neural crest-derived melanocytes which reside mostly in the skin in an adult organism. Epithelial-mesenchymal transition (EMT) is a tumorigenic programme through which cells acquire mesenchymal, more pro-oncogenic phenotype. The reversible phenotype switching is an event still not completely understood in melanoma. The EMT features and increased invasiveness are associated with lower levels of the pivotal lineage identity maintaining and melanoma-specific transcription factor MITF (microphthalmia-associated transcription factor), whereas increased proliferation is linked to higher MITF levels. However, the precise role of MITF in phenotype switching is still loosely characterized. To exclude the changes occurring upstream of MITF during MITF regulation in vivo, we employed a model whereby MITF expression was inducibly regulated by shRNA in melanoma cell lines. We found that the decrease in MITF caused only moderate attenuation of proliferation of the whole cell line population. Proliferation was decreased in five of 15 isolated clones, in three of them profoundly. Reduction in MITF levels alone did not generally produce EMT-like characteristics. The stem cell marker levels also did not change appreciably, only a sharp increase in SOX2 accompanied MITF down-regulation. Oppositely, the downstream differentiation markers and the MITF transcriptional targets melastatin and tyrosinase were profoundly decreased, as well as the downstream target livin. Surprisingly, after the MITF decline, invasiveness was not appreciably affected, independently of proliferation. The results suggest that low levels of MITF may still maintain relatively high proliferation and might reflect, rather than cause, the EMT-like changes occurring in melanoma.
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Affiliation(s)
- Kateřina Vlčková
- Department of Transcription and Cell SignalingInstitute of Medical Biochemistry and Laboratory DiagnosticsFirst Faculty of MedicineCharles UniversityPragueCzech Republic
| | - Jiri Vachtenheim
- Department of Transcription and Cell SignalingInstitute of Medical Biochemistry and Laboratory DiagnosticsFirst Faculty of MedicineCharles UniversityPragueCzech Republic
| | - Jiri Réda
- Department of Transcription and Cell SignalingInstitute of Medical Biochemistry and Laboratory DiagnosticsFirst Faculty of MedicineCharles UniversityPragueCzech Republic
| | - Pavel Horák
- Department of Transcription and Cell SignalingInstitute of Medical Biochemistry and Laboratory DiagnosticsFirst Faculty of MedicineCharles UniversityPragueCzech Republic
| | - Lubica Ondrušová
- Department of Transcription and Cell SignalingInstitute of Medical Biochemistry and Laboratory DiagnosticsFirst Faculty of MedicineCharles UniversityPragueCzech Republic
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46
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Petrachi T, Romagnani A, Albini A, Longo C, Argenziano G, Grisendi G, Dominici M, Ciarrocchi A, Dallaglio K. Therapeutic potential of the metabolic modulator phenformin in targeting the stem cell compartment in melanoma. Oncotarget 2018; 8:6914-6928. [PMID: 28036292 PMCID: PMC5351679 DOI: 10.18632/oncotarget.14321] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 12/12/2016] [Indexed: 01/02/2023] Open
Abstract
Melanoma is the most dangerous and treatment-resistant skin cancer. Tumor resistance and recurrence are due to the persistence in the patient of aggressive cells with stem cell features, the cancer stem cells (CSC). Recent evidences have shown that CSC display a distinct metabolic profile as compared to tumor bulk population: a promising anti-tumor strategy is therefore to target specific metabolic pathways driving CSC behavior. Biguanides (metformin and phenformin) are anti-diabetic drugs able to perturb cellular metabolism and displaying anti-cancer activity. However, their ability to target the CSC compartment in melanoma is not known. Here we show that phenformin, but not metformin, strongly reduces melanoma cell viability, growth and invasion in both 2D and 3D (spheroids) models. While phenformin decreases melanoma CSC markers expression and the levels of the pro-survival factor MITF, MITF overexpression fails to prevent phenformin effects. Phenformin significantly reduces cell viability in melanoma by targeting both CSC (ALDHhigh) and non-CSC cells and by significantly reducing the number of viable cells in ALDHhigh and ALDHlow-derived spheroids. Consistently, phenformin reduces melanoma cell viability and growth independently from SOX2 levels. Our results show that phenformin is able to affect both CSC and non-CSC melanoma cell viability and growth and suggests its potential use as anti-cancer therapy in melanoma.
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Affiliation(s)
- Tiziana Petrachi
- Laboratory of Translational Research, Department of Scientific Direction, Arcispedale S. Maria Nuova-IRCCS, Reggio Emilia, Italy
| | - Alessandra Romagnani
- Laboratory of Translational Research, Department of Scientific Direction, Arcispedale S. Maria Nuova-IRCCS, Reggio Emilia, Italy
| | - Adriana Albini
- Scientific and Technologic Park, IRCCS MultiMedica, Milan, Italy
| | - Caterina Longo
- Skin Cancer Unit, IRCCS-Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Giuseppe Argenziano
- Skin Cancer Unit, IRCCS-Arcispedale Santa Maria Nuova, Reggio Emilia, Italy.,Dermatology Unit, Second University of Naples, Naples, Italy
| | - Giulia Grisendi
- Department of Medical and Surgical Sciences for Children & Adults, University Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Massimo Dominici
- Department of Medical and Surgical Sciences for Children & Adults, University Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Alessia Ciarrocchi
- Laboratory of Translational Research, Department of Scientific Direction, Arcispedale S. Maria Nuova-IRCCS, Reggio Emilia, Italy
| | - Katiuscia Dallaglio
- Laboratory of Translational Research, Department of Scientific Direction, Arcispedale S. Maria Nuova-IRCCS, Reggio Emilia, Italy
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Ernst AK, Putscher A, Samatov TR, Suling A, Galatenko VV, Shkurnikov MY, Knyazev EN, Tonevitsky AG, Haalck T, Lange T, Maar H, Schröder- Schwarz J, Riecken K, Schumacher U, Wicklein D. Knockdown of L1CAM significantly reduces metastasis in a xenograft model of human melanoma: L1CAM is a potential target for anti-melanoma therapy. PLoS One 2018; 13:e0192525. [PMID: 29432466 PMCID: PMC5809060 DOI: 10.1371/journal.pone.0192525] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 01/25/2018] [Indexed: 11/18/2022] Open
Abstract
Finding additional functional targets for combination therapy could improve the outcome for melanoma patients. In a spontaneous metastasis xenograft model of human melanoma a shRNA mediated knockdown of L1CAM more than sevenfold reduced the number of lung metastases after the induction of subcutaneous tumors for two human melanoma cell lines (MeWo, MV3). Whole genome expression arrays of the initially L1CAM high MeWo subcutaneous tumors revealed unchanged or downregulated genes involved in epithelial to mesenchymal transition (EMT) except an upregulation of Jagged 1, indicating a compensatory change in Notch signaling especially as Jagged 1 expression showed an increase in MeWo L1CAM metastases and Jagged 1 was expressed in metastases of the initially L1CAM low MV3 cells as well. Expression of 17 genes showed concordant regulation for L1CAM knockdown tumors of both cell lines. The changes in gene expression indicated changes in the EMT network of the melanoma cells and an increase in p53/p21 and p38 activity contributing to the reduced metastatic potential of the L1CAM knockdowns. Taken together, these data make L1CAM a highly interesting therapeutic target to prevent further metastatic spread in melanoma patients.
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Affiliation(s)
- Ann-Kathrin Ernst
- Institute of Anatomy and Experimental Morphology, University Cancer Center, University Medical-Center Hamburg-Eppendorf, Hamburg, Germany
| | - Annika Putscher
- Institute of Anatomy and Experimental Morphology, University Cancer Center, University Medical-Center Hamburg-Eppendorf, Hamburg, Germany
| | - Timur R. Samatov
- SRC Bioclinicum, Moscow, Russia
- Moscow State University of Mechanical Engineering, Moscow, Russia
| | - Anna Suling
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Vladimir V. Galatenko
- SRC Bioclinicum, Moscow, Russia
- Moscow State University, Moscow, Russia
- National Research University Higher School of Economics, Moscow, Russia
| | | | | | - Alexander G. Tonevitsky
- Moscow State University, Moscow, Russia
- Department of Translational Oncology, National Center of Medical Radiological Research, Obninsk, Russia
| | - Thomas Haalck
- Outpatient Center, Department of Dermatology, University Medical-Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias Lange
- Institute of Anatomy and Experimental Morphology, University Cancer Center, University Medical-Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hanna Maar
- Institute of Anatomy and Experimental Morphology, University Cancer Center, University Medical-Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jennifer Schröder- Schwarz
- Institute of Anatomy and Experimental Morphology, University Cancer Center, University Medical-Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kristoffer Riecken
- Research Department Cell and Gene Therapy, Department of Stem Cell Transplantation, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Udo Schumacher
- Institute of Anatomy and Experimental Morphology, University Cancer Center, University Medical-Center Hamburg-Eppendorf, Hamburg, Germany
| | - Daniel Wicklein
- Institute of Anatomy and Experimental Morphology, University Cancer Center, University Medical-Center Hamburg-Eppendorf, Hamburg, Germany
- * E-mail:
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48
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Fortis SP, Mahaira LG, Anastasopoulou EA, Voutsas IF, Perez SA, Baxevanis CN. Immune profiling of melanoma tumors reflecting aggressiveness in a preclinical model. Cancer Immunol Immunother 2017; 66:1631-1642. [PMID: 28871365 PMCID: PMC11028901 DOI: 10.1007/s00262-017-2056-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 08/23/2017] [Indexed: 10/18/2022]
Abstract
Melanoma, like most solid tumors, is highly heterogeneous in terms of invasive, proliferative, and tumor-initiating potential. This heterogeneity is the outcome of differential gene expression resulting from conditions in the tumor microenvironment and the selective pressure of the immune system. To investigate possible signatures combining immune-related gene expression and lymphocyte infiltration, we established a preclinical model using B16.F1-derived clones, in the context of melanoma aggressiveness. Combinatorial analyses revealed that tumors concomitantly expressing low levels of Tnf-a, Pd-1, Il-10, Il-1ra, Ccl5, Ido, high Il-9, and with low infiltration by CD45+, CD3+, CD4+ and CD8+ cells and a high CD4+:CD8+ T cell ratio exhibited the most aggressive growth characteristics. Overall, these results support the notion that the intratumoral immunologic network molds aggressive melanoma phenotypes.
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Affiliation(s)
- Sotirios P Fortis
- Cancer Immunology and Immunotherapy Center, "Saint Savas" Cancer Hospital, 171 Alexandras Avenue, 11522, Athens, Greece
| | - Louisa G Mahaira
- Cancer Immunology and Immunotherapy Center, "Saint Savas" Cancer Hospital, 171 Alexandras Avenue, 11522, Athens, Greece
| | - Eleftheria A Anastasopoulou
- Cancer Immunology and Immunotherapy Center, "Saint Savas" Cancer Hospital, 171 Alexandras Avenue, 11522, Athens, Greece
| | - Ioannis F Voutsas
- Cancer Immunology and Immunotherapy Center, "Saint Savas" Cancer Hospital, 171 Alexandras Avenue, 11522, Athens, Greece
| | - Sonia A Perez
- Cancer Immunology and Immunotherapy Center, "Saint Savas" Cancer Hospital, 171 Alexandras Avenue, 11522, Athens, Greece
| | - Constantin N Baxevanis
- Cancer Immunology and Immunotherapy Center, "Saint Savas" Cancer Hospital, 171 Alexandras Avenue, 11522, Athens, Greece.
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49
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Arafeh R, Flores K, Keren-Paz A, Maik-Rachline G, Gutkind N, Rosenberg S, Seger R, Samuels Y. Combined inhibition of MEK and nuclear ERK translocation has synergistic antitumor activity in melanoma cells. Sci Rep 2017; 7:16345. [PMID: 29180761 PMCID: PMC5704016 DOI: 10.1038/s41598-017-16558-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 11/14/2017] [Indexed: 12/16/2022] Open
Abstract
Genetic alterations in BRAF, NRAS and NF1 that activate the ERK cascade, account for over 80% of metastatic melanomas. However, ERK cascade inhibitors have been proven beneficial almost exclusively for BRAF mutant melanomas. One of the hallmarks of the ERK cascade is the nuclear translocation of ERK1/2, which is important mainly for the induction of proliferation. This translocation can be inhibited by the NTS-derived peptide (EPE) that blocks the ERK1/2-importin7 interaction, inhibits the nuclear translocation of ERK1/2, and arrests active ERK1/2 in the cytoplasm. In this study, we found that the EPE peptide significantly reduced the viability of not only BRAF, but also several NRAS and NF1 mutant melanomas. Importantly, combination of the EPE peptide and trametinib showed synergy in reducing the viability of some NRAS mutant melanomas, an effect driven by the partial preservation of negative feedback loops. The same combination significantly reduced the viability of other melanoma cells, including those resistant to mono-treatment with EPE peptide and ERK cascade inhibitors. Our study indicates that targeting the nuclear translocation of ERK1/2, in combination with MEK inhibitors can be used for the treatment of different mutant melanomas.
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Affiliation(s)
- Rand Arafeh
- Weizmann Institute of Science, Rehovot, Israel
| | | | | | | | | | | | - Rony Seger
- Weizmann Institute of Science, Rehovot, Israel
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50
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Somasundaram R, Zhang G, Fukunaga-Kalabis M, Perego M, Krepler C, Xu X, Wagner C, Hristova D, Zhang J, Tian T, Wei Z, Liu Q, Garg K, Griss J, Hards R, Maurer M, Hafner C, Mayerhöfer M, Karanikas G, Jalili A, Bauer-Pohl V, Weihsengruber F, Rappersberger K, Koller J, Lang R, Hudgens C, Chen G, Tetzlaff M, Wu L, Frederick DT, Scolyer RA, Long GV, Damle M, Ellingsworth C, Grinman L, Choi H, Gavin BJ, Dunagin M, Raj A, Scholler N, Gross L, Beqiri M, Bennett K, Watson I, Schaider H, Davies MA, Wargo J, Czerniecki BJ, Schuchter L, Herlyn D, Flaherty K, Herlyn M, Wagner SN. Tumor-associated B-cells induce tumor heterogeneity and therapy resistance. Nat Commun 2017; 8:607. [PMID: 28928360 PMCID: PMC5605714 DOI: 10.1038/s41467-017-00452-4] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 06/30/2017] [Indexed: 01/19/2023] Open
Abstract
In melanoma, therapies with inhibitors to oncogenic BRAFV600E are highly effective but responses are often short-lived due to the emergence of drug-resistant tumor subpopulations. We describe here a mechanism of acquired drug resistance through the tumor microenvironment, which is mediated by human tumor-associated B cells. Human melanoma cells constitutively produce the growth factor FGF-2, which activates tumor-infiltrating B cells to produce the growth factor IGF-1. B-cell-derived IGF-1 is critical for resistance of melanomas to BRAF and MEK inhibitors due to emergence of heterogeneous subpopulations and activation of FGFR-3. Consistently, resistance of melanomas to BRAF and/or MEK inhibitors is associated with increased CD20 and IGF-1 transcript levels in tumors and IGF-1 expression in tumor-associated B cells. Furthermore, first clinical data from a pilot trial in therapy-resistant metastatic melanoma patients show anti-tumor activity through B-cell depletion by anti-CD20 antibody. Our findings establish a mechanism of acquired therapy resistance through tumor-associated B cells with important clinical implications.Resistance to BRAFV600E inhibitors often occurs in melanoma patients. Here, the authors describe a potential mechanism of acquired drug resistance mediated by tumor-associated B cells-derived IGF-1.
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Affiliation(s)
| | - Gao Zhang
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | | | | | - Xiaowei Xu
- Department of Pathology and Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Christine Wagner
- Division of Immunology, Allergy and Infectious Diseases (DIAID), Department of Dermatology, Medical University of Vienna, Vienna, A-1090, Austria
| | | | - Jie Zhang
- New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Tian Tian
- New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Zhi Wei
- New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Qin Liu
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Kanika Garg
- Division of Immunology, Allergy and Infectious Diseases (DIAID), Department of Dermatology, Medical University of Vienna, Vienna, A-1090, Austria
| | - Johannes Griss
- Division of Immunology, Allergy and Infectious Diseases (DIAID), Department of Dermatology, Medical University of Vienna, Vienna, A-1090, Austria
| | - Rufus Hards
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Margarita Maurer
- Division of Immunology, Allergy and Infectious Diseases (DIAID), Department of Dermatology, Medical University of Vienna, Vienna, A-1090, Austria
| | - Christine Hafner
- Department of Dermatology and Venereology, Karl Landsteiner University of Health Sciences, St. Pölten, A-3100, Austria
| | - Marius Mayerhöfer
- Department of Radiology, Division of Nuclear Medicine, Medical University of Vienna, Vienna, A-1090, Austria
| | - Georgios Karanikas
- Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, A-1090, Austria
| | - Ahmad Jalili
- Division of Immunology, Allergy and Infectious Diseases (DIAID), Department of Dermatology, Medical University of Vienna, Vienna, A-1090, Austria
| | - Verena Bauer-Pohl
- Division of Immunology, Allergy and Infectious Diseases (DIAID), Department of Dermatology, Medical University of Vienna, Vienna, A-1090, Austria
| | - Felix Weihsengruber
- Department of Dermatology and Venereology, The Rudolfstiftung Hospital, Teaching Hospital of the Medical University Vienna, Vienna, A-1030, Austria
| | - Klemens Rappersberger
- Department of Dermatology and Venereology, The Rudolfstiftung Hospital, Teaching Hospital of the Medical University Vienna, Vienna, A-1030, Austria
| | - Josef Koller
- Department of Dermatology, Paracelsus Medical University Salzburg, Salzburg, A-5020, Austria
| | - Roland Lang
- Department of Dermatology, Paracelsus Medical University Salzburg, Salzburg, A-5020, Austria
| | - Courtney Hudgens
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77040, USA
| | - Guo Chen
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77040, USA
| | - Michael Tetzlaff
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77040, USA
| | - Lawrence Wu
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | - Richard A Scolyer
- Melanoma Institute of Australia, and The University of Sydney, Sydney, 2065, Australia
| | - Georgina V Long
- Melanoma Institute of Australia, and The University of Sydney, Sydney, 2065, Australia
| | | | | | - Leon Grinman
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Harry Choi
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | - Margaret Dunagin
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Arjun Raj
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Nathalie Scholler
- Abramson Cancer Center, Hospital of University of Pennsylvania, Philadelphia, PA, 19104, USA
- SRI International, Menlo Park, CA, 94025, USA
| | - Laura Gross
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | - Keiryn Bennett
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, A-1090, Austria
| | - Ian Watson
- Department of Biochemistry, McGill University, Montreal, QC, Canada, H3A0G4
| | - Helmut Schaider
- Dermatology Research Center, University of Queensland Diamantina Institute, The University of Queensland, Translational Research Institute, Brisbane, 4102, Australia
| | - Michael A Davies
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77040, USA
| | - Jennifer Wargo
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer, Center, Houston, TX, 77040, USA
| | - Brian J Czerniecki
- Abramson Cancer Center, Hospital of University of Pennsylvania, Philadelphia, PA, 19104, USA
- Moffitt Cancer Center, Tampa, FL, 33612, USA
| | - Lynn Schuchter
- Abramson Cancer Center, Hospital of University of Pennsylvania, Philadelphia, PA, 19104, USA
| | | | - Keith Flaherty
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, 02115, USA
| | | | - Stephan N Wagner
- Division of Immunology, Allergy and Infectious Diseases (DIAID), Department of Dermatology, Medical University of Vienna, Vienna, A-1090, Austria.
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