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Bromberger S, Zadorozhna Y, Ressler JM, Holzner S, Nawrocki A, Zila N, Springer A, Røssel Larsen M, Schossleitner K. Off-targets of BRAF inhibitors disrupt endothelial signaling and vascular barrier function. Life Sci Alliance 2024; 7:e202402671. [PMID: 38839106 PMCID: PMC11153892 DOI: 10.26508/lsa.202402671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/07/2024] Open
Abstract
Targeted therapies against mutant BRAF are effectively used in combination with MEK inhibitors (MEKi) to treat advanced melanoma. However, treatment success is affected by resistance and adverse events (AEs). Approved BRAF inhibitors (BRAFi) show high levels of target promiscuity, which can contribute to these effects. The blood vessel lining is in direct contact with high plasma concentrations of BRAFi, but effects of the inhibitors in this cell type are unknown. Hence, we aimed to characterize responses to approved BRAFi for melanoma in the vascular endothelium. We showed that clinically approved BRAFi induced a paradoxical activation of endothelial MAPK signaling. Moreover, phosphoproteomics revealed distinct sets of off-targets per inhibitor. Endothelial barrier function and junction integrity were impaired upon treatment with vemurafenib and the next-generation dimerization inhibitor PLX8394, but not with dabrafenib or encorafenib. Together, these findings provide insights into the surprisingly distinct side effects of BRAFi on endothelial signaling and functionality. Better understanding of off-target effects could help to identify molecular mechanisms behind AEs and guide the continued development of therapies for BRAF-mutant melanoma.
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Affiliation(s)
- Sophie Bromberger
- https://ror.org/05n3x4p02 Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Yuliia Zadorozhna
- https://ror.org/05n3x4p02 Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Julia Maria Ressler
- https://ror.org/05n3x4p02 Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Silvio Holzner
- https://ror.org/05n3x4p02 Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Arkadiusz Nawrocki
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Nina Zila
- https://ror.org/05n3x4p02 Department of Dermatology, Medical University of Vienna, Vienna, Austria
- University of Applied Sciences FH Campus Wien, Division of Biomedical Science, Vienna, Austria
| | - Alexander Springer
- https://ror.org/05n3x4p02 Department of Pediatric Surgery, Medical University of Vienna, Vienna, Austria
| | - Martin Røssel Larsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Klaudia Schossleitner
- https://ror.org/05n3x4p02 Department of Dermatology, Medical University of Vienna, Vienna, Austria
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2
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Reeder TL, Zarlenga DS, Dyer RM. Molecular evidence sterile tissue damage during pathogenesis of pododermatitis aseptica hemorrhagica circumscripta is associated with disturbed epidermal-dermal homeostasis. J Dairy Sci 2024:S0022-0302(24)00842-7. [PMID: 38825113 DOI: 10.3168/jds.2023-24577] [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: 12/19/2023] [Accepted: 04/29/2024] [Indexed: 06/04/2024]
Abstract
Podermatitis aseptica hemorrhagica circumscripta is associated with metalloproteinase 2 weakening of distal phalangeal suspensory structures and sinkage of the distal phalanx in the claw capsule. Pressure from the tuberculum flexorium on the sole epidermis and dermis produces hemorrhagic tissue injury and defective horn production appearing as yellow-red, softened claw horn in region 4 of the sole. A model of the MAPK/ERK signal cascade orchestrating epidermal-dermal homeostasis was employed to determine if sterile inflammatory responses are linked to disturbed signal transduction for epidermal homeostasis in sole epidermis and dermis. The objective was to assess shifts in target genes of inflammation, up- and downstream MAPK/ERK signal elements, and targeted genes supporting epidermal proliferation and differentiation. Sole epidermis and dermis was removed from lateral claws bearing lesions of podermatitis aseptica hemorrhagica circumscripta, medial claws from the same limb and lateral claws from completely normal limbs of multiparous, lactating Holstein cows. The abundance levels of targeted transcripts were evaluated by real-time QPCR. Lesion effects were assessed by ANOVA, and mean comparisons were performed with t-tests to assess variations between mean expression in ulcer-bearing or medial claw dermis and epidermis and completely normal lateral claw dermis and epidermis or between ulcer-bearing dermis and epidermis and medial claw dermis and epidermis. The lesions were sterile and showed losses across multiple growth factors, their receptors, several downstream AP1 transcription components, CMYC, multiple cell cycle and terminal differentiation elements conducted by MAPK/ERK signals and β 4, α 6 and collagen 17A hemidesmosome components. These losses coincided with increased cytokeratin 6, β 1 integrin, proinflammatory metalloproteinases 2 and 9, IL1B and physiologic inhibitors of IL1B, the decoy receptor and receptor antagonist. Medial claw epidermis and dermis from limbs with lateral claws bearing podermatitis aseptica hemorrhagica circumscripta showed reductions in upstream MAPK/ERK signal elements and downstream targets that paralleled those in hemorrhagic lesions. Inhibitors of IL1B increased in the absence of real increases in inflammatory targets in the medial claw dermis and epidermis. Losses across multiple signal path elements and downstream targets were associated with negative effects on targeted transcripts supporting claw horn production and wound repair across lesion-bearing lateral claws and lesion-free medial claw dermis and epidermis. It was unclear if the sterile inflammation was causative or a consequence of these perturbations.
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Affiliation(s)
- T L Reeder
- Department of Animal and Food Sciences, College of Agriculture and Natural Resources, University of Delaware, Newark, Delaware 19717-1303
| | - D S Zarlenga
- Animal Parasitic Disease Laboratory, Beltsville Agriculture Research Center, United States Department of Agriculture, Agriculture Research Service, Beltsville, MD 20705-2350
| | - R M Dyer
- Department of Animal and Food Sciences, College of Agriculture and Natural Resources, University of Delaware, Newark, Delaware 19717-1303.
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3
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Rhim WK, Woo J, Kim JY, Lee EH, Cha SG, Kim DS, Baek SW, Park CG, Kim BS, Kwon TG, Han DK. Multiplexed PLGA scaffolds with nitric oxide-releasing zinc oxide and melatonin-modulated extracellular vesicles for severe chronic kidney disease. J Adv Res 2024:S2090-1232(24)00118-8. [PMID: 38537702 DOI: 10.1016/j.jare.2024.03.018] [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: 11/13/2023] [Revised: 03/15/2024] [Accepted: 03/23/2024] [Indexed: 04/04/2024] Open
Abstract
INTRODUCTION With prevalence of chronic kidney disease (CKD) in worldwide, the strategies to recover renal function via tissue regeneration could provide alternatives to kidney replacement therapies. However, due to relatively low reproducibility of renal basal cells and limited bioactivities of implanted biomaterials along with the high probability of substance-inducible inflammation and immunogenicity, kidney tissue regeneration could be challenging. OBJECTIVES To exclude various side effects from cell transplantations, in this study, we have induced extracellular vesicles (EVs) incorporated cell-free hybrid PMEZ scaffolds. METHODS Hybrid PMEZ scaffolds incorporating essential bioactive components, such as ricinoleic acid grafted Mg(OH)2 (M), extracellular matrix (E), and alpha lipoic acid-conjugated ZnO (Z) based on biodegradable porous PLGA (P) platform was successfully manufactured. Consecutively, for functional improvements, melatonin-modulated extracellular vesicles (mEVs), derived from the human umbilical cord MSCs in chemically defined media without serum impurities, were also loaded onto PMEZ scaffolds to construct the multiplexed PMEZ/mEV scaffold. RESULTS With functionalities of Mg(OH)2 and extracellular matrix-loaded PLGA scaffolds, the continuous nitric oxide-releasing property of modified ZnO and remarkably upregulated regenerative functionalities of mEVs showed significantly enhanced kidney regenerative activities. Based on these, the structural and functional restoration has been practically achieved in 5/6 nephrectomy mouse models that mimicked severe human CKD. CONCLUSION Our study has proved the combinatory bioactivities of the biodegradable PLGA-based multiplexed scaffold for kidney tissue regeneration in 5/6 nephrectomy mouse representing a severe CKD model. The optimal microenvironments for the morphogenetic formations of renal tissues and functional restorations have successfully achieved the combinatory bioactivities of remarkable components for PMEZ/mEV, which could be a promising therapeutic alternative for CKD treatment.
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Affiliation(s)
- Won-Kyu Rhim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Jiwon Woo
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Jun Yong Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea; Department of Biomedical Engineering and Intelligent Precision of Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU) 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea; Intelligent Precision of Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU) 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea
| | - Eun Hye Lee
- Joint Institute for Regenerative Medicine, Kyungpook National University, Jung-gu, Daegu 41944, Republic of Korea
| | - Seung-Gyu Cha
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Da-Seul Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Seung-Woon Baek
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea; Department of Biomedical Engineering and Intelligent Precision of Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU) 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea; Intelligent Precision of Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU) 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea
| | - Chun Gwon Park
- Department of Biomedical Engineering and Intelligent Precision of Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU) 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea; Intelligent Precision of Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU) 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea
| | - Bum Soo Kim
- Joint Institute for Regenerative Medicine, Kyungpook National University, Jung-gu, Daegu 41944, Republic of Korea; Department of Urology, School of Medicine, Kyungpook National University, Jung-gu, Daegu 41944, Republic of Korea
| | - Tae Gyun Kwon
- Joint Institute for Regenerative Medicine, Kyungpook National University, Jung-gu, Daegu 41944, Republic of Korea; Department of Urology, School of Medicine, Kyungpook National University, Jung-gu, Daegu 41944, Republic of Korea
| | - Dong Keun Han
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea.
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4
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Bonnici L, Suleiman S, Schembri-Wismayer P, Cassar A. Targeting Signalling Pathways in Chronic Wound Healing. Int J Mol Sci 2023; 25:50. [PMID: 38203220 PMCID: PMC10779022 DOI: 10.3390/ijms25010050] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
Chronic wounds fail to achieve complete closure and are an economic burden to healthcare systems due to the limited treatment options and constant medical attention. Chronic wounds are characterised by dysregulated signalling pathways. Research has focused on naturally derived compounds, stem-cell-based therapy, small molecule drugs, oligonucleotide delivery nanoparticles, exosomes and peptide-based platforms. The phosphoinositide-3-kinase (PI3K)/protein kinase B (AKT), Wingless-related integration (Wnt)/β-catenin, transforming growth factor-β (TGF-β), nuclear factor erythroid 2-related factor 2 (Nrf2), Notch and hypoxia-inducible factor 1 (HIF-1) signalling pathways have critical roles in wound healing by modulating the inflammatory, proliferative and remodelling phases. Moreover, several regulators of the signalling pathways were demonstrated to be potential treatment targets. In this review, the current research on targeting signalling pathways under chronic wound conditions will be discussed together with implications for future studies.
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Affiliation(s)
| | | | | | - Analisse Cassar
- Department of Anatomy, University of Malta, MSD 2080 Msida, Malta; (L.B.); (S.S.); (P.S.-W.)
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5
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Ram A, Murphy D, DeCuzzi N, Patankar M, Hu J, Pargett M, Albeck JG. A guide to ERK dynamics, part 2: downstream decoding. Biochem J 2023; 480:1909-1928. [PMID: 38038975 PMCID: PMC10754290 DOI: 10.1042/bcj20230277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 12/02/2023]
Abstract
Signaling by the extracellular signal-regulated kinase (ERK) pathway controls many cellular processes, including cell division, death, and differentiation. In this second installment of a two-part review, we address the question of how the ERK pathway exerts distinct and context-specific effects on multiple processes. We discuss how the dynamics of ERK activity induce selective changes in gene expression programs, with insights from both experiments and computational models. With a focus on single-cell biosensor-based studies, we summarize four major functional modes for ERK signaling in tissues: adjusting the size of cell populations, gradient-based patterning, wave propagation of morphological changes, and diversification of cellular gene expression states. These modes of operation are disrupted in cancer and other related diseases and represent potential targets for therapeutic intervention. By understanding the dynamic mechanisms involved in ERK signaling, there is potential for pharmacological strategies that not only simply inhibit ERK, but also restore functional activity patterns and improve disease outcomes.
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Affiliation(s)
- Abhineet Ram
- Department of Molecular and Cellular Biology, University of California, Davis, CA, U.S.A
| | - Devan Murphy
- Department of Molecular and Cellular Biology, University of California, Davis, CA, U.S.A
| | - Nicholaus DeCuzzi
- Department of Molecular and Cellular Biology, University of California, Davis, CA, U.S.A
| | - Madhura Patankar
- Department of Molecular and Cellular Biology, University of California, Davis, CA, U.S.A
| | - Jason Hu
- Department of Molecular and Cellular Biology, University of California, Davis, CA, U.S.A
| | - Michael Pargett
- Department of Molecular and Cellular Biology, University of California, Davis, CA, U.S.A
| | - John G. Albeck
- Department of Molecular and Cellular Biology, University of California, Davis, CA, U.S.A
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6
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Eftimie R, Rolin G, Adebayo OE, Urcun S, Chouly F, Bordas SPA. Modelling Keloids Dynamics: A Brief Review and New Mathematical Perspectives. Bull Math Biol 2023; 85:117. [PMID: 37855947 DOI: 10.1007/s11538-023-01222-8] [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: 04/19/2023] [Accepted: 10/02/2023] [Indexed: 10/20/2023]
Abstract
Keloids are fibroproliferative disorders described by excessive growth of fibrotic tissue, which also invades adjacent areas (beyond the original wound borders). Since these disorders are specific to humans (no other animal species naturally develop keloid-like tissue), experimental in vivo/in vitro research has not led to significant advances in this field. One possible approach could be to combine in vitro human models with calibrated in silico mathematical approaches (i.e., models and simulations) to generate new testable biological hypotheses related to biological mechanisms and improved treatments. Because these combined approaches do not really exist for keloid disorders, in this brief review we start by summarising the biology of these disorders, then present various types of mathematical and computational approaches used for related disorders (i.e., wound healing and solid tumours), followed by a discussion of the very few mathematical and computational models published so far to study various inflammatory and mechanical aspects of keloids. We conclude this review by discussing some open problems and mathematical opportunities offered in the context of keloid disorders by such combined in vitro/in silico approaches, and the need for multi-disciplinary research to enable clinical progress.
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Affiliation(s)
- R Eftimie
- Laboratoire de Mathématiques de Besançon, Université de Franche-Comté, 25000, Besançon, France.
| | - G Rolin
- INSERM CIC-1431, CHU Besançon, F-25000, Besançon, France
- EFS, INSERM, UMR 1098 RIGHT, Université de Franche-Comté, F-25000, Besançon, France
| | - O E Adebayo
- Laboratoire de Mathématiques de Besançon, Université de Franche-Comté, 25000, Besançon, France
| | - S Urcun
- Institute for Computational Engineering, Faculty of Science, Technology and Communication, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - F Chouly
- Institut de Mathématiques de Bourgogne, Université de Franche-Comté, 21078, Dijon, France
- Center for Mathematical Modelling and Department of Mathematical Engineering, University of Chile and IRL 2807 - CNRS, Santiago, Chile
- Departamento de Ingeniería Matemática, CI2MA, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - S P A Bordas
- Institute for Computational Engineering, Faculty of Science, Technology and Communication, University of Luxembourg, Esch-sur-Alzette, Luxembourg
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7
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Chan NR, Hwang B, Waworuntu RL, Tran AJ, Ratner BD, Bryers JD. Novel HALO® image analysis to determine cell phenotype in porous precision-templated scaffolds. J Biomed Mater Res A 2023; 111:1459-1467. [PMID: 37029696 PMCID: PMC10524297 DOI: 10.1002/jbm.a.37547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 03/29/2023] [Accepted: 04/02/2023] [Indexed: 04/09/2023]
Abstract
Image analysis platforms have gained increasing popularity in the last decade for the ability to automate and conduct high-throughput, multiplex, and quantitative analyses of a broad range of pathological tissues. However, imaging tissues with unique morphology or tissues containing implanted biomaterial scaffolds remain a challenge. Using HALO®, an image analysis platform specialized in quantitative tissue analysis, we have developed a novel method to determine multiple cell phenotypes in porous precision-templated scaffolds (PTS). PTS with uniform spherical pores between 30 and 40 μm in diameter have previously exhibited a specific immunomodulation of macrophages toward a pro-healing phenotype and an overall diminished foreign body response (FBR) compared to PTS with larger or smaller pore sizes. However, signaling pathways orchestrating this pro-healing in 40 μm PTS remain unclear. Here, we use HALO® to phenotype PTS resident cells and found a decrease in pro-inflammatory CD86 and an increase in pro-healing CD206 expression in 40 μm PTS compared to 100 μm PTS. To understand the mechanisms that drive these outcomes, we investigated the role of myeloid-differentiation-primary-response gene 88 (MyD88) in regulating the pro-healing phenomenon observed only in 40 μm PTS. When subcutaneously implanted in MyD88KO mice, 40 μm PTS reduced the expression of CD206, and the scaffold resident cells displayed an average larger nuclear size compared to 40 μm PTS implanted in mice expressing MyD88. Overall, this study demonstrates a novel image analysis method for phenotyping cells within PTS and identifies MyD88 as a critical mediator in the pore-size-dependent regenerative healing and host immune response to PTS.
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Affiliation(s)
- Nathan R. Chan
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA 98195, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Billanna Hwang
- Center for Lung Biology, University of Washington, Seattle, WA 98109, USA
- Department of Surgery, University of Washington, Seattle, WA 98195, USA
| | | | - An J. Tran
- Center for Lung Biology, University of Washington, Seattle, WA 98109, USA
| | - Buddy D. Ratner
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA 98195, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA
| | - James D. Bryers
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA 98195, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
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8
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Karhana S, Dabral S, Garg A, Bano A, Agarwal N, Khan MA. Network pharmacology and molecular docking analysis on potential molecular targets and mechanism of action of BRAF inhibitors for application in wound healing. J Cell Biochem 2023. [PMID: 37334778 DOI: 10.1002/jcb.30430] [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: 03/08/2023] [Revised: 05/16/2023] [Accepted: 05/19/2023] [Indexed: 06/20/2023]
Abstract
Topical application of BRAF inhibitors has been shown to accelerate wound healing in murine models, which can be extrapolated into clinical applications. The aim of the study was to identify suitable pharmacological targets of BRAF inhibitors and elucidate their mechanisms of action for therapeutic applicability in wound healing, by employing bioinformatics tools including network pharmacology and molecular docking. The potential targets for BRAF inhibitors were obtained from SwissTargetPrediction, DrugBank, CTD, Therapeutic Target Database, and Binding Database. Targets of wound healing were obtained using online databases DisGeNET and OMIM (Online Mendelian Inheritance in Man). Common targets were found by using the online GeneVenn tool. Common targets were then imported to STRING to construct interaction networks. Topological parameters were assessed using Cytoscape and core targets were identified. FunRich was employed to uncover the signaling pathways, cellular components, molecular functions, and biological processes in which the core targets participate. Finally, molecular docking was performed using MOE software. Key targets for the therapeutic application of BRAF inhibitors for wound healing are peroxisome proliferator-activated receptor γ, matrix metalloproteinase 9, AKT serine/threonine kinase 1, mammalian target of rapamycin, and Ki-ras2 Kirsten rat sarcoma viral oncogene homolog. The most potent BRAF inhibitors that can be exploited for their paradoxical activity for wound healing applications are Encorafenib and Dabrafenib. By using network pharmacology and molecular docking, it can be predicted that the paradoxical activity of BRAF inhibitors can be used for their potential application in wound healing.
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Affiliation(s)
- Sonali Karhana
- Centre for Translational & Clinical Research, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Swarna Dabral
- Centre for Translational & Clinical Research, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Aakriti Garg
- Centre for Translational & Clinical Research, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Aysha Bano
- Centre for Translational & Clinical Research, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Nidhi Agarwal
- Centre for Translational & Clinical Research, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Mohd Ashif Khan
- Centre for Translational & Clinical Research, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
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9
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Friedman N, Weinstein-Fudim L, Mostinski Y, Elia J, Cohen S, Steinberg E, Frankenburg S, Peretz T, Eisenberg G, Lotem M, Benny O, Merims S. Preventing skin toxicities induced by EGFR inhibitors by topically blocking drug-receptor interactions. Sci Transl Med 2023; 15:eabo0684. [PMID: 37285403 DOI: 10.1126/scitranslmed.abo0684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 05/18/2023] [Indexed: 06/09/2023]
Abstract
Epidermal growth factor receptor (EGFR) inhibitors are used to treat many advanced-stage epithelial cancers but induce severe skin toxicities in most treated patients. These side effects lead to a deterioration in the quality of life of the patients and compromise the anticancer treatment. Current treatment strategies for these skin toxicities focus on symptom reduction rather than preventing the initial trigger that causes the toxicity. In this study, we developed a compound and method for treating "on-target" skin toxicity by blocking the drug at the site of toxicity without reducing the systemic dose reaching the tumor. We first screened for small molecules that effectively blocked the binding of anti-EGFR monoclonal antibodies to EGFR and identified a potential candidate, SDT-011. In silico docking predicted that SDT-011 interacted with the same residues on EGFR found to be important for the binding of EGFR inhibitors cetuximab and panitumumab. Binding of SDT-011 to EGFR reduced the binding affinity of cetuximab to EGFR and could reactivate EGFR signaling in keratinocyte cell lines, ex vivo cetuximab-treated whole human skin, and A431-injected mice. Specific small molecules were topically applied and were delivered via a slow-release system derived from biodegradable nanoparticles that penetrate the hair follicles and sebaceous glands, within which EGFR is highly expressed. Our approach has the potential to reduce skin toxicity caused by EGFR inhibitors.
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Affiliation(s)
- Nethanel Friedman
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Liza Weinstein-Fudim
- Sharett Institute of Oncology, Hadassah Medical Center, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
- Laboratory of Teratology, Department of Medical Neurobiology, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
| | - Yelena Mostinski
- Sharett Institute of Oncology, Hadassah Medical Center, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
| | - Jhonatan Elia
- Department of Plastic and Reconstructive Surgery, Hadassah Medical Center, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
| | - Sherri Cohen
- Sharett Institute of Oncology, Hadassah Medical Center, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
| | - Eliana Steinberg
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Shoshana Frankenburg
- Sharett Institute of Oncology, Hadassah Medical Center, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
- Wohl Institute for Translational Medicine, Hadassah Medical Organization, Jerusalem 91120, Israel
- Hadassah Cancer Research Institute (HCRI), Jerusalem 91120, Israel
| | - Tamar Peretz
- Sharett Institute of Oncology, Hadassah Medical Center, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
| | - Galit Eisenberg
- Sharett Institute of Oncology, Hadassah Medical Center, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
- Wohl Institute for Translational Medicine, Hadassah Medical Organization, Jerusalem 91120, Israel
- Hadassah Cancer Research Institute (HCRI), Jerusalem 91120, Israel
| | - Michal Lotem
- Sharett Institute of Oncology, Hadassah Medical Center, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
- Wohl Institute for Translational Medicine, Hadassah Medical Organization, Jerusalem 91120, Israel
- Hadassah Cancer Research Institute (HCRI), Jerusalem 91120, Israel
| | - Ofra Benny
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Sharon Merims
- Sharett Institute of Oncology, Hadassah Medical Center, Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel
- Wohl Institute for Translational Medicine, Hadassah Medical Organization, Jerusalem 91120, Israel
- Hadassah Cancer Research Institute (HCRI), Jerusalem 91120, Israel
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10
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Lee JH, Massagué J. TGF-β in Developmental and Fibrogenic EMTs. Semin Cancer Biol 2022; 86:136-145. [PMID: 36183999 PMCID: PMC10155902 DOI: 10.1016/j.semcancer.2022.09.004] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 11/18/2022]
Abstract
TGF-β plays a prominent role as an inducer of epithelial-mesenchymal transitions (EMTs) during development and wound healing and in disease conditions such as fibrosis and cancer. During these processes EMT occurs together with changes in cell proliferation, differentiation, communication, and extracellular matrix remodeling that are orchestrated by multiple signaling inputs besides TGF-β. Chief among these inputs is RAS-MAPK signaling, which is frequently required for EMT induction by TGF-β. Recent work elucidated the molecular basis for the cooperation between the TGF-β-SMAD and RAS-MAPK pathways in the induction of EMT in embryonic, adult and carcinoma epithelial cells. These studies also provided direct mechanistic links between EMT and progenitor cell differentiation during gastrulation or intra-tumoral fibrosis during cancer metastasis. These insights illuminate the nature of TGF-β driven EMTs as part of broader processes during development, fibrogenesis and metastasis.
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Affiliation(s)
- Jun Ho Lee
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Joan Massagué
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
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11
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Ouyang T, Yin H, Yang J, Liu Y, Ma S. Tissue regeneration effect of betulin via inhibition of ROS/MAPKs/NF-ĸB axis using zebrafish model. Biomed Pharmacother 2022; 153:113420. [DOI: 10.1016/j.biopha.2022.113420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/13/2022] [Accepted: 07/13/2022] [Indexed: 11/02/2022] Open
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Zauner R, Wimmer M, Dorfer S, Ablinger M, Koller U, Piñón Hofbauer J, Guttmann-Gruber C, Bauer JW, Wally V. Transcriptome-Guided Drug Repurposing for Aggressive SCCs. Int J Mol Sci 2022; 23:ijms23021007. [PMID: 35055192 PMCID: PMC8780441 DOI: 10.3390/ijms23021007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/03/2022] [Accepted: 01/13/2022] [Indexed: 02/04/2023] Open
Abstract
Despite a significant rise in the incidence of cutaneous squamous cell carcinoma (SCC) in recent years, most SCCs are well treatable. However, against the background of pre-existing risk factors such as immunosuppression upon organ transplantation, or conditions such as recessive dystrophic epidermolysis bullosa (RDEB), SCCs arise more frequently and follow a particularly aggressive course. Notably, such SCC types display molecular similarities, despite their differing etiologies. We leveraged the similarities in transcriptomes between tumors from organ transplant recipients and RDEB-patients, augmented with data from more common head and neck (HN)-SCCs, to identify drugs that can be repurposed to treat these SCCs. The in silico approach used is based on the assumption that SCC-derived transcriptome profiles reflect critical tumor pathways that, if reversed towards healthy tissue, will attenuate the malignant phenotype. We determined tumor-specific signatures based on differentially expressed genes, which were then used to mine drug-perturbation data. By leveraging recent efforts in the systematic profiling and cataloguing of thousands of small molecule compounds, we identified drugs including selumetinib that specifically target key molecules within the MEK signaling cascade, representing candidates with the potential to be effective in the treatment of these rare and aggressive SCCs.
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Affiliation(s)
- Roland Zauner
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria; (M.W.); (S.D.); (M.A.); (U.K.); (J.P.H.); (C.G.-G.); (J.W.B.); (V.W.)
- Correspondence:
| | - Monika Wimmer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria; (M.W.); (S.D.); (M.A.); (U.K.); (J.P.H.); (C.G.-G.); (J.W.B.); (V.W.)
| | - Sonja Dorfer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria; (M.W.); (S.D.); (M.A.); (U.K.); (J.P.H.); (C.G.-G.); (J.W.B.); (V.W.)
| | - Michael Ablinger
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria; (M.W.); (S.D.); (M.A.); (U.K.); (J.P.H.); (C.G.-G.); (J.W.B.); (V.W.)
| | - Ulrich Koller
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria; (M.W.); (S.D.); (M.A.); (U.K.); (J.P.H.); (C.G.-G.); (J.W.B.); (V.W.)
| | - Josefina Piñón Hofbauer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria; (M.W.); (S.D.); (M.A.); (U.K.); (J.P.H.); (C.G.-G.); (J.W.B.); (V.W.)
| | - Christina Guttmann-Gruber
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria; (M.W.); (S.D.); (M.A.); (U.K.); (J.P.H.); (C.G.-G.); (J.W.B.); (V.W.)
| | - Johann W. Bauer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria; (M.W.); (S.D.); (M.A.); (U.K.); (J.P.H.); (C.G.-G.); (J.W.B.); (V.W.)
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Verena Wally
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria; (M.W.); (S.D.); (M.A.); (U.K.); (J.P.H.); (C.G.-G.); (J.W.B.); (V.W.)
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Yin ZX, Xing CY, Li GH, Pang LB, Wang J, Pan J, Zang R, Zhang S. A combined risk model for the multi-encompassing identification of heterogeneities of prognoses, biological pathway variations and immune states for sepsis patients. BMC Anesthesiol 2022; 22:16. [PMID: 34996374 PMCID: PMC8739717 DOI: 10.1186/s12871-021-01552-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 12/21/2021] [Indexed: 12/21/2022] Open
Abstract
Background Sepsis is a highly heterogeneous syndrome with stratified severity levels and immune states. Even in patients with similar clinical appearances, the underlying signal transduction pathways are significantly different. To identify the heterogeneities of sepsis from multiple angles, we aimed to establish a combined risk model including the molecular risk score for rapid mortality prediction, pathway risk score for the identification of biological pathway variations, and immunity risk score for guidance with immune-modulation therapy. Methods We systematically searched and screened the mRNA expression profiles of patients with sepsis in the Gene Expression Omnibus public database. The screened datasets were divided into a training cohort and a validation cohort. In the training cohort, authentic prognostic predictor characteristics (differentially expressed mRNAs, pathway activity variations and immune cells) were screened for model construction through bioinformatics analysis and univariate Cox regression, and a P value less than 0.05 of univariate Cox regression on 28-day mortality was set as the cut-off value. The combined risk model was finally established by the decision tree algorithm. In the validation cohort, the model performance was assessed and validated by C statistics and the area under the receiver operating characteristic curve (AUC). Additionally, the current models were further compared in clinical value with traditional indicators, including procalcitonin (PCT) and interleukin-8 (IL-8). Results Datasets from two sepsis cohort studies with a total of 585 consecutive sepsis patients admitted to two intensive care units were downloaded as the training cohort (n = 479) and external validation cohort (n = 106). In the training cohort, 15 molecules, 20 pathways and 4 immune cells were eventually enrolled in model construction. These prognostic factors mainly reflected hypoxia, cellular injury, metabolic disorders and immune dysregulation in sepsis patients. In the validation cohort, the AUCs of the molecular model, pathway model, immune model, and combined model were 0.81, 0.82, 0.62 and 0.873, respectively. The AUCs of the traditional biomarkers (PCT and IL-8) were 0.565 and 0.585, respectively. The survival analysis indicated that patients in the high-risk group identified by models in the current study had a poor prognosis (P < 0.05). The above results indicated that the models in this study are all superior to the traditional biomarkers for the predicting the prognosis of sepsis patients. Furthermore, the current study provides some therapeutic recommendations for patients with high risk scores identified by the three submodels. Conclusions In summary, the present study provides opportunities for bedside tests that could quantitatively and rapidly measure heterogeneous prognosis, underlying biological pathway variations and immune dysfunction in sepsis patients. Further therapeutic recommendations for patients with high risk scores could improve the therapeutic system for sepsis. Supplementary Information The online version contains supplementary material available at 10.1186/s12871-021-01552-x.
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Affiliation(s)
- Zong-Xiu Yin
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Cheeloo College of Medicine, Shandong University, No. 105 Jiefang Road, Jinan, 250013, Shandong Province, China.,Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Chun-Yan Xing
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Cheeloo College of Medicine, Shandong University, No. 105 Jiefang Road, Jinan, 250013, Shandong Province, China.,Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Guan-Hua Li
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Cheeloo College of Medicine, Shandong University, No. 105 Jiefang Road, Jinan, 250013, Shandong Province, China.,Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Long-Bin Pang
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Cheeloo College of Medicine, Shandong University, No. 105 Jiefang Road, Jinan, 250013, Shandong Province, China.,Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jing Wang
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Cheeloo College of Medicine, Shandong University, No. 105 Jiefang Road, Jinan, 250013, Shandong Province, China.,Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jing Pan
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Cheeloo College of Medicine, Shandong University, No. 105 Jiefang Road, Jinan, 250013, Shandong Province, China.,Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Rui Zang
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Cheeloo College of Medicine, Shandong University, No. 105 Jiefang Road, Jinan, 250013, Shandong Province, China.,Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Shi Zhang
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Cheeloo College of Medicine, Shandong University, No. 105 Jiefang Road, Jinan, 250013, Shandong Province, China. .,Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
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Corrales E, Levit-Zerdoun E, Metzger P, Kowar S, Ku M, Brummer T, Boerries M. Dynamic transcriptome analysis reveals signatures of paradoxical effect of vemurafenib on human dermal fibroblasts. Cell Commun Signal 2021; 19:123. [PMID: 34930313 PMCID: PMC8686565 DOI: 10.1186/s12964-021-00801-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 11/09/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Vemurafenib (PLX4032) is one of the most frequently used treatments for late-stage melanoma patients with the BRAFV600E mutation; however, acquired resistance to the drug poses as a major challenge. It remains to be determined whether off-target effects of vemurafenib on normal stroma components could reshape the tumor microenvironment in a way that contributes to cancer progression and drug resistance. METHODS By using temporally-resolved RNA- and ATAC-seq, we studied the early molecular changes induced by vemurafenib in human dermal fibroblast (HDF), a main stromal component in melanoma and other tumors with high prevalence of BRAFV600 mutations. RESULTS Transcriptomics analyses revealed a stepwise up-regulation of proliferation signatures, together with a down-regulation of autophagy and proteolytic processes. The gene expression changes in HDF strongly correlated in an inverse way with those in BRAFV600E mutant malignant melanoma (MaMel) cell lines, consistent with the observation of a paradoxical effect of vemurafenib, leading to hyperphosphorylation of MEK1/2 and ERK1/2. The transcriptional changes in HDF were not strongly determined by alterations in chromatin accessibility; rather, an already permissive chromatin landscape seemed to facilitate the early accessibility to MAPK/ERK-regulated transcription factor binding sites. Combinatorial treatment with the MEK inhibitor trametinib did not preclude the paradoxical activation of MAPK/ERK signaling in HDF. When administered together, vemurafenib partially compensated for the reduction of cell viability and proliferation induced by trametinib. These paradoxical changes were restrained by using the third generation BRAF inhibitor PLX8394, a so-called paradox breaker compound. However, the advantageous effects on HDF during combination therapies were also lost. CONCLUSIONS Vemurafenib induces paradoxical changes in HDF, enabled by a permissive chromatin landscape. These changes might provide an advantage during combination therapies, by compensating for the toxicity induced in stromal cells by less specific MAPK/ERK inhibitors. Our results highlight the relevance of evaluating the effects of the drugs on non-transformed stromal components, carefully considering the implications of their administration either as mono- or combination therapies. Video Abstract.
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Affiliation(s)
- Eyleen Corrales
- Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany
- Institute of Medical Bioinformatics and Systems Medicine (IBSM), Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
- Faculty of Biology, University of Freiburg, Schänzlestr. 1, 79104 Freiburg, Germany
| | - Ella Levit-Zerdoun
- Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany
- Institute of Medical Bioinformatics and Systems Medicine (IBSM), Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
- German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Patrick Metzger
- Institute of Medical Bioinformatics and Systems Medicine (IBSM), Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
| | - Silke Kowar
- Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany
- Institute of Medical Bioinformatics and Systems Medicine (IBSM), Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
| | - Manching Ku
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology and Oncology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Mathildenstr. 1, 79106 Freiburg, Germany
| | - Tilman Brummer
- Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany
- German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- German Cancer Consortium (DKTK), Freiburg, Germany
- Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Schänzlestr. 18, 79104 Freiburg, Germany
| | - Melanie Boerries
- Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany
- Institute of Medical Bioinformatics and Systems Medicine (IBSM), Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
- German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- German Cancer Consortium (DKTK), Freiburg, Germany
- Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Schänzlestr. 18, 79104 Freiburg, Germany
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15
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Lacouture ME, Wainberg ZA, Patel AB, Anadkat MJ, Stemmer SM, Shacham-Shmueli E, Medina E, Zelinger G, Shelach N, Ribas A. Reducing Skin Toxicities from EGFR Inhibitors with Topical BRAF Inhibitor Therapy. Cancer Discov 2021; 11:2158-2167. [PMID: 33910927 PMCID: PMC8418997 DOI: 10.1158/2159-8290.cd-20-1847] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/14/2021] [Accepted: 04/16/2021] [Indexed: 11/16/2022]
Abstract
Treatment of cancer with EGFR inhibitors is limited by on-target skin toxicities induced by inhibition of the MAPK pathway. BRAF inhibitors are known to paradoxically activate the MAPK downstream of EGFR, which we confirmed using human skin keratinocytes. We then conducted a phase I clinical trial testing the hypothesis that topical therapy with the BRAF inhibitor LUT014 could improve skin toxicities induced by EGFR inhibitors. Ten patients with metastatic colorectal cancer who had developed acneiform rash while being treated with cetuximab or panitumumab were enrolled in three cohorts. LUT014 was well tolerated, and there were no dose-limiting toxicities. The acneiform rash improved in the 6 patients who started with grade 2 rash in the low and intermediate cohorts. We conclude that topical LUT014 is safe and efficacious in improving rash from EGFR inhibitors, consistent with the mechanism of action inducting paradoxical MAPK activation. SIGNIFICANCE: BRAF inhibitor topical therapy could avoid dose reductions of EGFR inhibitors, locally treating the main dose-limiting skin toxicity of this class of agents.This article is highlighted in the In This Issue feature, p. 2113.
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Affiliation(s)
| | - Zev A Wainberg
- University of California, Los Angeles (UCLA) and Jonsson Comprehensive Cancer Center, Los Angeles, California
| | - Anisha B Patel
- The University of Texas MD Anderson Cancer Center (MDACC), Houston, Texas
| | - Milan J Anadkat
- Washington University School of Medicine, St. Louis, Missouri
| | - Salomon M Stemmer
- Davidoff Center, Rabin Medical Center, Petach Tikva, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | - Egmidio Medina
- University of California, Los Angeles (UCLA) and Jonsson Comprehensive Cancer Center, Los Angeles, California
| | | | | | - Antoni Ribas
- University of California, Los Angeles (UCLA) and Jonsson Comprehensive Cancer Center, Los Angeles, California.
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Miricescu D, Badoiu SC, Stanescu-Spinu II, Totan AR, Stefani C, Greabu M. Growth Factors, Reactive Oxygen Species, and Metformin-Promoters of the Wound Healing Process in Burns? Int J Mol Sci 2021; 22:ijms22179512. [PMID: 34502429 PMCID: PMC8431501 DOI: 10.3390/ijms22179512] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/26/2021] [Accepted: 08/30/2021] [Indexed: 12/19/2022] Open
Abstract
Burns can be caused by various factors and have an increased risk of infection that can seriously delay the wound healing process. Chronic wounds caused by burns represent a major health problem. Wound healing is a complex process, orchestrated by cytokines, growth factors, prostaglandins, free radicals, clotting factors, and nitric oxide. Growth factors released during this process are involved in cell growth, proliferation, migration, and differentiation. Reactive oxygen species are released in acute and chronic burn injuries and play key roles in healing and regeneration. The main aim of this review is to present the roles of growth factors, reactive oxygen species, and metformin in the healing process of burn injuries.
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Affiliation(s)
- Daniela Miricescu
- Department of Biochemistry, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania; (D.M.); (A.R.T.); (M.G.)
| | - Silviu Constantin Badoiu
- Department of Anatomy and Embriology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
- Department of Plastic and Reconstructive Surgery, Life Memorial Hospital, 365 Grivitei Street, 010719 Bucharest, Romania
- Correspondence: (S.C.B.); (I.-I.S.-S.)
| | - Iulia-Ioana Stanescu-Spinu
- Department of Biochemistry, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania; (D.M.); (A.R.T.); (M.G.)
- Correspondence: (S.C.B.); (I.-I.S.-S.)
| | - Alexandra Ripszky Totan
- Department of Biochemistry, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania; (D.M.); (A.R.T.); (M.G.)
| | - Constantin Stefani
- Department of Family Medicine and Clinical Base, Dr. Carol Davila Central Military Emergency University Hospital, 010825 Bucharest, Romania;
| | - Maria Greabu
- Department of Biochemistry, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania; (D.M.); (A.R.T.); (M.G.)
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Yu Y, Zhang X, Liu F, Zhu P, Zhang L, Peng Y, Yan X, Li Y, Hua P, Liu C, Li Q, Zhang L. A stress-induced miR-31-CLOCK-ERK pathway is a key driver and therapeutic target for skin aging. NATURE AGING 2021; 1:795-809. [PMID: 37117623 DOI: 10.1038/s43587-021-00094-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 06/30/2021] [Indexed: 04/30/2023]
Abstract
Regressive changes in epithelial stem cells underlie mammalian skin aging, but the driving mechanisms are not well understood. Here, we report that mouse skin hair follicle stem cell (HFSC) aging is initiated by their intrinsic upregulation of miR-31, a microRNA that can be induced by physical injury or genotoxic stress and is also strongly upregulated in aged human skin epithelium. Using transgenic and conditional knockout mouse models plus a lineage-tracing technique, we show that miR-31 acts as a key driver of HFSC aging by directly targeting Clock, a core circadian clock gene whose deregulation activates a MAPK/ERK cascade to induce HFSC depletion via transepidermal elimination. Notably, blocking this pathway by either conditional miR-31 ablation or clinically approved MAPK/ERK inhibitors provides safe and effective protection against skin aging, enlightening a promising therapeutic avenue for treating skin aging and other genotoxic stress-induced skin conditions such as radiodermatitis.
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Affiliation(s)
- Yao Yu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xia Zhang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Fengzhen Liu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Peiying Zhu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Liping Zhang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - You Peng
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xinyu Yan
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yin Li
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Peng Hua
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Caiyue Liu
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Qingfeng Li
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Liang Zhang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.
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Paskal W, Kopka M, Stachura A, Paskal AM, Pietruski P, Pełka K, Woessner AE, Quinn KP, Galus R, Wejman J, Włodarski P. Single Dose of N-Acetylcysteine in Local Anesthesia Increases Expression of HIF1α, MAPK1, TGFβ1 and Growth Factors in Rat Wound Healing. Int J Mol Sci 2021; 22:8659. [PMID: 34445365 PMCID: PMC8395485 DOI: 10.3390/ijms22168659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/03/2021] [Accepted: 08/10/2021] [Indexed: 01/13/2023] Open
Abstract
In this study, we aimed to investigate the influence of N-acetylcysteine (NAC) on the gene expression profile, neoangiogenesis, neutrophils and macrophages in a rat model of incisional wounds. Before creating wounds on the backs of 24 Sprague-Dawley rats, intradermal injections were made. Lidocaine-epinephrin solutions were supplemented with 0.015%, 0.03% or 0.045% solutions of NAC, or nothing (control group). Scars were harvested on the 3rd, 7th, 14th and 60th day post-surgery. We performed immunohistochemical staining in order to visualize macrophages (anti-CD68), neutrophils (anti-MPO) and newly formed blood vessels (anti-CD31). Additionally, RT-qPCR was used to measure the relative expression of 88 genes involved in the wound healing process. On the 14th day, the number of cells stained with anti-CD68 and anti-CD31 antibodies was significantly larger in the tissues treated with 0.03% NAC compared with the control. Among the selected genes, 52 were upregulated and six were downregulated at different time points. Interestingly, NAC exerted a significant effect on the expression of 45 genes 60 days after its administration. In summation, a 0.03% NAC addition to the pre-incisional anesthetic solution improves neovasculature and increases the macrophages' concentration at the wound site on the 14th day, as well as altering the expression of numerous genes that are responsible for the regenerative processes.
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Affiliation(s)
- Wiktor Paskal
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
| | - Michał Kopka
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
| | - Albert Stachura
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
- Doctoral School, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Adriana M. Paskal
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
| | - Piotr Pietruski
- Centre of Postgraduate Medical Education, Department of Replantation and Reconstructive Surgery, Gruca Teaching Hospital, 05-400 Otwock, Poland;
| | - Kacper Pełka
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
| | - Alan E. Woessner
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA; (A.E.W.); (K.P.Q.)
| | - Kyle P. Quinn
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA; (A.E.W.); (K.P.Q.)
| | - Ryszard Galus
- Department of Histology and Embryology, Medical University of Warsaw, 02-091 Warsaw, Poland;
| | - Jarosław Wejman
- Department of Pathology, Centre of Postgraduate Medical Education, 00-416 Warsaw, Poland;
| | - Paweł Włodarski
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
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19
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Escuin-Ordinas H, Liu Y, Sun L, Hugo W, Dimatteo R, Huang RR, Krystofinski P, Azhdam A, Lee J, Comin-Anduix B, Cochran AJ, Lo RS, Segura T, Scumpia PO, Ribas A. Wound healing with topical BRAF inhibitor therapy in a diabetic model suggests tissue regenerative effects. PLoS One 2021; 16:e0252597. [PMID: 34161353 PMCID: PMC8221471 DOI: 10.1371/journal.pone.0252597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/21/2021] [Indexed: 12/13/2022] Open
Abstract
Wound healing is a multi-step process to rapidly restore the barrier function. This process is often impaired in diabetic patients resulting in chronic wounds and amputation. We previously found that paradoxical activation of the mitogen-activated protein kinase (MAPK) pathway via topical administration of the BRAF inhibitor vemurafenib accelerates wound healing by activating keratinocyte proliferation and reepithelialization pathways in healthy mice. Herein, we investigated whether this wound healing acceleration also occurs in impaired diabetic wounds and found that topical vemurafenib not only improves wound healing in a murine diabetic wound model but unexpectedly promotes hair follicle regeneration. Hair follicles expressing Sox-9 and K15 surrounded by CD34+ stroma were found in wounds of diabetic and non-diabetic mice, and their formation can be prevented by blocking downstream MEK signaling. Thus, topically applied BRAF inhibitors may accelerate wound healing, and promote the restoration of improved skin architecture in both normal and impaired wounds.
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Affiliation(s)
- Helena Escuin-Ordinas
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles (UCLA), Los Angeles, California, United States of America
- * E-mail: (AR); (HEO)
| | - Yining Liu
- Department of Chemical and Biomolecular Engineering, UCLA, Los Angeles, California, United States of America
| | - Lu Sun
- Division of Dermatology, Department of Medicine, UCLA, Los Angeles, California, United States of America
| | - Willy Hugo
- Division of Dermatology, Department of Medicine, UCLA, Los Angeles, California, United States of America
| | - Robert Dimatteo
- Department of Chemical and Biomolecular Engineering, UCLA, Los Angeles, California, United States of America
| | - Rong Rong Huang
- Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, California, United States of America
| | - Paige Krystofinski
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles (UCLA), Los Angeles, California, United States of America
| | - Ariel Azhdam
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles (UCLA), Los Angeles, California, United States of America
| | - Jordan Lee
- Department of Dermatology, VA Greater Los Angeles Healthcare System-West Los Angeles, Los Angeles, California, United States of America
| | - Begoña Comin-Anduix
- Division of Surgical Oncology, Department of Surgery, UCLA, Los Angeles, California, United States of America
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, California, United States of America
| | - Alistair J. Cochran
- Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, California, United States of America
| | - Roger S. Lo
- Division of Dermatology, Department of Medicine, UCLA, Los Angeles, California, United States of America
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, California, United States of America
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California, United States of America
| | - Tatiana Segura
- Department of Chemical and Biomolecular Engineering, UCLA, Los Angeles, California, United States of America
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, United States of America
| | - Philip O. Scumpia
- Division of Dermatology, Department of Medicine, UCLA, Los Angeles, California, United States of America
- Department of Dermatology, VA Greater Los Angeles Healthcare System-West Los Angeles, Los Angeles, California, United States of America
| | - Antoni Ribas
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles (UCLA), Los Angeles, California, United States of America
- Division of Surgical Oncology, Department of Surgery, UCLA, Los Angeles, California, United States of America
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California, United States of America
- Department of Biological Chemistry, UCLA, Los Angeles, California, United States of America
- * E-mail: (AR); (HEO)
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20
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Discontinuation of BRAF/MEK-Directed Targeted Therapy after Complete Remission of Metastatic Melanoma-A Retrospective Multicenter ADOReg Study. Cancers (Basel) 2021; 13:cancers13102312. [PMID: 34065877 PMCID: PMC8151093 DOI: 10.3390/cancers13102312] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 12/13/2022] Open
Abstract
The advent of BRAF/MEK inhibitors (BRAFi/MEKi) has significantly improved progression-free (PFS) and overall survival (OS) for patients with advanced BRAF-V600-mutant melanoma. Long-term survivors have been identified particularly among patients with a complete response (CR) to BRAF/MEK-directed targeted therapy (TT). However, it remains unclear which patients who achieved a CR maintain a durable response and whether treatment cessation might be a safe option in these patients. Therefore, this study investigated the impact of treatment cessation on the clinical course of patients with a CR upon BRAF/MEK-directed-TT. We retrospectively selected patients with BRAF-V600-mutant advanced non-resectable melanoma who had been treated with BRAFi ± MEKi therapy and achieved a CR upon treatment out of the multicentric skin cancer registry ADOReg. Data on baseline patient characteristics, duration of TT, treatment cessation, tumor progression (TP) and response to second-line treatments were collected and analyzed. Of 461 patients who received BRAF/MEK-directed TT 37 achieved a CR. TP after initial CR was observed in 22 patients (60%) mainly affecting patients who discontinued TT (n = 22/26), whereas all patients with ongoing TT (n = 11) maintained their CR. Accordingly, patients who discontinued TT had a higher risk of TP compared to patients with ongoing treatment (p < 0.001). However, our data also show that patients who received TT for more than 16 months and who discontinued TT for other reasons than TP or toxicity did not have a shorter PFS compared to patients with ongoing treatment. Response rates to second-line treatment being initiated in 21 patients, varied between 27% for immune-checkpoint inhibitors (ICI) and 60% for BRAFi/MEKi rechallenge. In summary, we identified a considerable number of patients who achieved a CR upon BRAF/MEK-directed TT in this contemporary real-world cohort of patients with BRAF-V600-mutant melanoma. Sustained PFS was not restricted to ongoing TT but was also found in patients who discontinued TT.
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21
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Abstract
Numerous individuals suffer from impaired wound healing, such as chronic ulcers, severe burns and immune disorders, resulting in both public health and economic burdens. Skin is the first line of defense and the largest organ of the human body, however, an incomplete understanding of underlying cellular and molecular mechanisms of dermal repair leads to a lack of effective therapy for healing impaired wounds. There are strong clinical and social needs for improved therapeutic approaches to enhance endogenous tissue repair and regenerative capacity. The purpose of this review is to illuminate the cellular and molecular aspects of the healing process and highlight potential therapeutic strategies to accelerate translational research and the development of clinical therapies in dermal wounds.
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Affiliation(s)
- Fan Yang
- Department of Traumatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Xiangjun Bai
- Department of Traumatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Xiaojing Dai
- MD Anderson Cancer Center, The Advanced Technology Genomics Core, Houston, TX 77030, USA
| | - Yong Li
- Department of Orthopedic Surgery & Biomedical Engineering, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI 49008, USA
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22
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Wang CJ, Brownell I. BRAF Inhibitors for the Treatment of Papulopustular Eruptions from MAPK Pathway Inhibitors. Am J Clin Dermatol 2020; 21:759-764. [PMID: 32720072 DOI: 10.1007/s40257-020-00539-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Inhibitors of the mitogen-activated protein kinase (MAPK) pathway are commonly used in clinical oncology. However, with the exception of BRAF inhibitors (BRAFi), MAPK pathway inhibitors such as epidermal growth factor receptor inhibitors (EGFRi) or MEK inhibitors (MEKi) are associated with dose-limiting papulopustular eruptions. Interestingly, patients treated with a combination of systemic BRAFi and MEKi experience less skin toxicities than patients on monotherapy BRAFi or MEKi. The reduction in cutaneous adverse events with combination therapy is thought to be due to a paradoxical activation of the MAPK pathway by BRAFi in keratinocytes carrying wildtype BRAF. Although treatment options for EGFRi- or MEKi-induced papulopustular eruptions exist, many patients still experience dose reduction, interruption, or discontinuation of EGFRi or MEKi. With the goal of activating MAPK signaling in the skin via BRAFi while minimizing systemic risks, we propose topical BRAFi therapy for the treatment and prevention of papulopustular eruptions due to MAPK pathway inhibitors. If effective, patients will be able to tolerate higher doses of MAPK pathway inhibitors, stay on treatment longer, and achieve better therapeutic outcomes overall.
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Affiliation(s)
- Catherine J Wang
- Dermatology Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, 10 Center Drive, 12N240C, Bethesda, MD, 20892-1908, USA
| | - Isaac Brownell
- Dermatology Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, 10 Center Drive, 12N240C, Bethesda, MD, 20892-1908, USA.
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23
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Kossard S. Keratoacanthoma, committed stem cells and neoplastic aberrant infundibulogenesis integral to formulating a conceptual model for an infundibulocystic pathway to squamous cell carcinoma. J Cutan Pathol 2020; 48:184-191. [PMID: 32881028 PMCID: PMC7821248 DOI: 10.1111/cup.13861] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/21/2020] [Accepted: 08/27/2020] [Indexed: 12/19/2022]
Abstract
Keratoacanthomas (KAs) are distinctive tumors that are defined by their clinical and histopathological features. Their relationship and distinction from squamous cell carcinoma (SCC), however, remain controversial. All cytogenic and immunohistochemical markers that have been applied in this quest have failed. A close relationship of KAs to hair follicles has been recognized. The descriptive term infundibulocystic or infundibular SCC was introduced to define a more broad-based pathway encompassing KAs. The follicular infundibulum roles in respect to neoplasia and wound healing are important elements in understanding the pathogenesis of KAs. Mouse models for KA have provided insights into the relationship of KA to follicles and SCCs. These advances and together with the diverse clinical and histopathological aspects of KA have contributed to the formulation of a conceptual pathway. The central element is that ultraviolet (UV)-mutated or activated committed infundibular stem cells are driven by the combination of a mutated oncogenic RAS pathway linked with the Wnt/beta-catenin pathway responsible for stem cell maintenance, hair follicle development, wound healing and driving KA proliferation and terminal keratinization. The existence and activation of this mutated pathway may form the basis of the paradoxical emergence of KAs and SCCs in patients receiving BRAF and PD-1 inhibitor therapy.
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Affiliation(s)
- Steven Kossard
- Kossard Dermatopathologists, Laverty Pathology, Macquarie Park, New South Wales, Australia
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24
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Manjuprasanna VN, Rudresha GV, Urs AP, Milan Gowda MD, Rajaiah R, Vishwanath BS. Drupin, a cysteine protease from Ficus drupacea latex accelerates excision wound healing in mice. Int J Biol Macromol 2020; 165:691-700. [PMID: 33010277 DOI: 10.1016/j.ijbiomac.2020.09.215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/14/2020] [Accepted: 09/24/2020] [Indexed: 01/02/2023]
Abstract
Wound healing is a tightly regulated physiological process that restores tissue integrity after injury. Plant latex proteases (PLPs) are considered an integral part in herbal wound care as it interferes at different phases of the wound healing process. Although many studies have reported the involvement of PLPs in healing process, an in-depth investigation is required to understand the molecular mechanism. Hence, the effect of PLPs with fibrinolytic activity on wound healing was investigated systematically using mouse excision wound model. Among 29 latices from Ficus genus tested, Ficus drupacea exhibited potent fibrinolytic activity. Cysteine protease responsible for fibrinolysis was purified from the F. drupacea latex named it as drupin, tested for its wound healing efficacy. The accelerated wound healing was mediated by downregulation of matrix metalloprotease (MMP)-9 without altering MMP-8 expression. Besides, drupin enhanced the rate of collagen synthesis at the wound site by increasing arginase 1 activity. And also, drupin increased the expression of arginase 1 in macrophages and involved in cell proliferation, and migration via MAP kinase and PI3K/Akt pathways. Overall, the present study highlights the interference of drupin in wound healing by increased arginase 1 activity and collagen synthesis, and cell proliferation and migration.
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Affiliation(s)
| | - Gotravalli V Rudresha
- Department of Studies in Biochemistry, University of Mysore, Manasagangothri, Mysuru, Karnataka, India
| | - Amog P Urs
- Department of Studies in Biochemistry, University of Mysore, Manasagangothri, Mysuru, Karnataka, India
| | | | - Rajesh Rajaiah
- Department of Studies in Molecular Biology, University of Mysore, Manasagangothri, Mysuru, Karnataka, India.
| | - Bannikuppe S Vishwanath
- Department of Studies in Biochemistry, University of Mysore, Manasagangothri, Mysuru, Karnataka, India; Department of Studies in Molecular Biology, University of Mysore, Manasagangothri, Mysuru, Karnataka, India.
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25
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DiCarlo AL, Bandremer AC, Hollingsworth BA, Kasim S, Laniyonu A, Todd NF, Wang SJ, Wertheimer ER, Rios CI. Cutaneous Radiation Injuries: Models, Assessment and Treatments. Radiat Res 2020; 194:315-344. [PMID: 32857831 PMCID: PMC7525796 DOI: 10.1667/rade-20-00120.1] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 06/11/2020] [Indexed: 12/16/2022]
Abstract
Many cases of human exposures to high-dose radiation have been documented, including individuals exposed during the detonation of atomic bombs in Hiroshima and Nagasaki, nuclear power plant disasters (e.g., Chernobyl), as well as industrial and medical accidents. For many of these exposures, injuries to the skin have been present and have played a significant role in the progression of the injuries and survivability from the radiation exposure. There are also instances of radiation-induced skin complications in routine clinical radiotherapy and radiation diagnostic imaging procedures. In response to the threat of a radiological or nuclear mass casualty incident, the U.S. Department of Health and Human Services tasked the National Institute of Allergy and Infectious Diseases (NIAID) with identifying and funding early- to mid-stage medical countermeasure (MCM) development to treat radiation-induced injuries, including those to the skin. To appropriately assess the severity of radiation-induced skin injuries and determine efficacy of different approaches to mitigate/treat them, it is necessary to develop animal models that appropriately simulate what is seen in humans who have been exposed. In addition, it is important to understand the techniques that are used in other clinical indications (e.g., thermal burns, diabetic ulcers, etc.) to accurately assess the extent of skin injury and progression of healing. For these reasons, the NIAID partnered with two other U.S. Government funding and regulatory agencies, the Biomedical Advanced Research and Development Authority (BARDA) and the Food and Drug Administration (FDA), to identify state-of-the-art methods in assessment of skin injuries, explore animal models to better understand radiation-induced cutaneous damage and investigate treatment approaches. A two-day workshop was convened in May 2019 highlighting talks from 28 subject matter experts across five scientific sessions. This report provides an overview of information that was presented and the subsequent guided discussions.
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Affiliation(s)
- Andrea L. DiCarlo
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland
| | - Aaron C. Bandremer
- Biomedical Advanced Research and Development Authority (BARDA), Department of Health and Human Services (HHS), Washington, DC
| | - Brynn A. Hollingsworth
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland
| | - Suhail Kasim
- U.S. Food and Drug Administration (FDA), White Oak, Maryland
| | | | - Nushin F. Todd
- U.S. Food and Drug Administration (FDA), White Oak, Maryland
| | - Sue-Jane Wang
- U.S. Food and Drug Administration (FDA), White Oak, Maryland
| | | | - Carmen I. Rios
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland
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26
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Lou BS, Hsieh JH, Chen CM, Hou CW, Wu HY, Chou PY, Lai CH, Lee JW. Helium/Argon-Generated Cold Atmospheric Plasma Facilitates Cutaneous Wound Healing. Front Bioeng Biotechnol 2020; 8:683. [PMID: 32695763 PMCID: PMC7338308 DOI: 10.3389/fbioe.2020.00683] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 06/02/2020] [Indexed: 12/17/2022] Open
Abstract
Cold atmospheric plasma jet (CAPJ) or non-thermal plasma jet has been employed in various biomedical applications based on their functions in bactericidal activity and wound healing. However, the effect of CAPJ generated by a particular composition of gases on wound closure and the underlying mechanisms that regulate wound healing signals remain elusive. In the present study, we investigated the impact of helium (He)- or a gas mixture of He and argon (He/Ar)-generated CAPJ on cell proliferation, which is a pivotal step during the wound healing process. With careful treatment duration control, He/Ar-CAPJ effectively induced keratinocyte proliferation and migration mediated through the activation of epithelial-to-mesenchymal transition (EMT) and cell cycle progression, which was evidenced by a decrease in E-cadherin levels and increases in N-cadherin, cyclin D1, Ki-67, Cdk2, and p-ERK levels. Rat wound healing studies showed that He/Ar-CAPJ treatment facilitated granulation tissue formation and mitigated inflammation in cutaneous tissue, resulting in accelerated wound closure. These findings highlight the possibility that He/Ar-CAPJ can be developed as a therapeutic agent for enhancing wound healing.
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Affiliation(s)
- Bih-Show Lou
- Chemistry Division, Center for General Education, Chang Gung University, Taoyuan, Taiwan.,Department of Nuclear Medicine and Molecular Imaging Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Jang-Hsing Hsieh
- Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei, Taiwan.,Department of Materials Engineering, Ming Chi University of Technology, New Taipei, Taiwan
| | - Chun-Ming Chen
- Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei, Taiwan
| | - Chun-Wei Hou
- Chemistry Division, Center for General Education, Chang Gung University, Taoyuan, Taiwan
| | - Hui-Yu Wu
- Department of Microbiology and Immunology, College of Medicine, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Pang-Yun Chou
- Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chih-Ho Lai
- Department of Microbiology and Immunology, College of Medicine, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan.,Department of Pediatrics, Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan.,Department of Medical Research, School of Medicine, China Medical University and Hospital, Taichung, Taiwan.,Department of Nursing, Asia University, Taichung, Taiwan
| | - Jyh-Wei Lee
- Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei, Taiwan.,Department of Materials Engineering, Ming Chi University of Technology, New Taipei, Taiwan.,Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Mechanical Engineering, Chang Gung University, Taoyuan, Taiwan
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27
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Wang A, Toma MA, Ma J, Li D, Vij M, Chu T, Wang J, Li X, Xu Landén N. Circular RNA hsa_circ_0084443 Is Upregulated in Diabetic Foot Ulcer and Modulates Keratinocyte Migration and Proliferation. Adv Wound Care (New Rochelle) 2020; 9:145-160. [PMID: 32117579 DOI: 10.1089/wound.2019.0956] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 07/12/2019] [Indexed: 12/15/2022] Open
Abstract
Objective: Insufficient knowledge about the molecular pathology of diabetic foot ulcer (DFU) impedes the development of effective wound treatment. Circular RNAs (circRNAs) are a novel class of RNA recently discovered to be widely expressed and have important biological functions; however, their role in skin wound healing remains largely unexplored. In this study, we investigated the role of circRNAs in DFU. Approach: CircRNA expression was profiled in normal wounds (NWs) and DFUs by microarray analysis, and hsa_circ_0084443 was identified as differentially expressed. The circularity and subcellular localization of hsa_circ_0084443 were characterized by northern blotting, real-time PCR, and fluorescence in situ hybridization. Cell migration, cell growth, and the transcriptome of human primary keratinocytes were analyzed after overexpression or RNA interference of hsa_circ_0084443. Results: hsa_circ_0084443 is downregulated in NWs compared with intact skin, and its level is higher in DFUs than NWs. We confirmed its circularity and presence in the cytoplasm of human epidermal keratinocytes. We showed that hsa_circ_0084443 reduced motility while enhancing the growth of keratinocytes. Furthermore, we identified a gene network with the potential to mediate the biological effect of hsa_circ_0084443. Innovation: CircRNAs have a functional role and a potential clinical significance in skin wound healing. Conclusions: We identified hsa_circ_0084443, a circRNA downregulated during NW healing, as a negative regulator of keratinocyte migration. Higher levels of hsa_circ_0084443 were detected in DFU samples, suggesting that it plays a role in pathology. These findings pave the way to understanding the functional role of circRNAs in human skin wound healing.
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Affiliation(s)
- Aoxue Wang
- Department of Dermatology, The Second Hospital of Dalian Medical University, College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Maria A. Toma
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jingxin Ma
- Department of Cell Biology, Dalian Medical University, Dalian, China
| | - Dongqing Li
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Manika Vij
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tongbin Chu
- Department of Wound Regeneration, The Second Hospital of Dalian Medical University, Dalian, China
| | - Jing Wang
- Department of Dermatology, The Second Hospital of Dalian Medical University, College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Xi Li
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ning Xu Landén
- Dermatology and Venereology Unit, Department of Medicine (Solna), Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Ming Wai Lau Centre for Reparative Medicine, Stockholm Node, Karolinska Institutet, Stockholm, Sweden
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28
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Gorsi H, Marupudi NI, Sood S, Altinok D, Yankelevich M. Pneumocephalus in a Pediatric Patient with Glioma Receiving Trametinib. Pediatr Neurosurg 2020; 55:51-53. [PMID: 31661699 DOI: 10.1159/000503639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 09/24/2019] [Indexed: 11/19/2022]
Abstract
The mitogen-activated protein kinase (MAPK) pathway consists of the Ras/Raf/MEK/ERK signaling cascade, and its upregulation plays a major role in the pathogenesis of pediatric astrocytomas and molecular inhibitors of this pathway including trametinib and dabrafenib have been tested in early-phase clinical trials and used by pediatric oncologists in children with BRAF-mutated gliomas. We report a clinical case where a child with progressive BRAF-mutated glioma developed an uncommon and difficult to manage complication - pneumocephalus from intracranial air entry and trapping through dehisced surgical wounds and preexisting skull burr holes. The patient's wound breakdown coincided with skin toxicity from MEK inhibitor therapy. With increasing use of targeted molecular inhibitors in pediatric neuro-oncology, this case illustrates the potentially complicated course of MEK inhibitor therapy in patients with scalp surgical wounds and burr holes that were placed within few weeks from initiation of drug therapy, especially if patients have additional factors that can contribute to poor wound healing such as use of steroids and malnutrition.
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Affiliation(s)
- Hamza Gorsi
- Division of Pediatric Hematology/Oncology, Children's Hospital of Michigan, Detroit, Michigan, USA
| | - Neena I Marupudi
- Pediatric Neurosurgery, Children's Hospital of Michigan, Detroit, Michigan, USA
| | - Sandeep Sood
- Pediatric Neurosurgery, Children's Hospital of Michigan, Detroit, Michigan, USA
| | - Deniz Altinok
- Department of Radiology, Children's Hospital of Michigan, Detroit, Michigan, USA
| | - Maxim Yankelevich
- Division of Pediatric Hematology/Oncology, Children's Hospital of Michigan, Detroit, Michigan, USA, .,Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA,
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Activator Protein-1 Transcriptional Activity Drives Soluble Micrograft-Mediated Cell Migration and Promotes the Matrix Remodeling Machinery. Stem Cells Int 2019; 2019:6461580. [PMID: 32082384 PMCID: PMC7012246 DOI: 10.1155/2019/6461580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 10/23/2019] [Accepted: 11/16/2019] [Indexed: 12/14/2022] Open
Abstract
Impaired wound healing and tissue regeneration have severe consequences on the patient's quality of life. Micrograft therapies are emerging as promising and affordable alternatives to improve skin regeneration by enhancing the endogenous wound repair processes. However, the molecular mechanisms underpinning the beneficial effects of the micrograft treatments remain largely unknown. In this study, we identified the active protein-1 (AP-1) member Fos-related antigen-1 (Fra-1) to play a central role in the extracellular signal-regulated kinase- (ERK-) mediated enhanced cell migratory capacity of soluble micrograft-treated mouse adult fibroblasts and in the human keratinocyte cell model. Accordingly, we show that increased micrograft-dependent in vitro cell migration and matrix metalloprotease activity is abolished upon inhibition of AP-1. Furthermore, soluble micrograft treatment leads to increased expression and posttranslational phosphorylation of Fra-1 and c-Jun, resulting in the upregulation of wound healing-associated genes mainly involved in the regulation of cell migration. Collectively, our work provides insights into the molecular mechanisms behind the cell-free micrograft treatment, which might contribute to future advances in wound repair therapies.
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30
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Bhawal UK, Li X, Suzuki M, Taguchi C, Oka S, Arikawa K, Tewari N, Liu Y. Treatment with low‐level sodium fluoride on wound healing and the osteogenic differentiation of bone marrow mesenchymal stem cells. Dent Traumatol 2019; 36:278-284. [DOI: 10.1111/edt.12532] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/22/2019] [Accepted: 11/22/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Ujjal K. Bhawal
- Department of Biochemistry and Molecular Biology Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Xiaoyan Li
- Department of Anesthesiology Nihon University School of Dentistry at Matsudo Chiba Japan
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Capital Medical University Beijing China
| | - Masatoshi Suzuki
- Department of Anesthesiology Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Chieko Taguchi
- Department of Community Oral Health Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Shunichi Oka
- Department of Anesthesiology Nihon University School of Dentistry Tokyo Japan
| | - Kazumune Arikawa
- Department of Community Oral Health Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Nitesh Tewari
- Division of Pedodontics and Preventive Dentistry Centre for Dental Education and Research All India Institute of Medical Sciences New Delhi India
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Capital Medical University Beijing China
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31
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Autologous micrograft accelerates endogenous wound healing response through ERK-induced cell migration. Cell Death Differ 2019; 27:1520-1538. [PMID: 31654035 PMCID: PMC7206041 DOI: 10.1038/s41418-019-0433-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 12/22/2022] Open
Abstract
Defective cell migration causes delayed wound healing (WH) and chronic skin lesions. Autologous micrograft (AMG) therapies have recently emerged as a new effective and affordable treatment able to improve wound healing capacity. However, the precise molecular mechanism through which AMG exhibits its beneficial effects remains unrevealed. Herein we show that AMG improves skin re-epithelialization by accelerating the migration of fibroblasts and keratinocytes. More specifically, AMG-treated wounds showed improvement of indispensable events associated with successful wound healing such as granulation tissue formation, organized collagen content, and newly formed blood vessels. We demonstrate that AMG is enriched with a pool of WH-associated growth factors that may provide the starting signal for a faster endogenous wound healing response. This work links the increased cell migration rate to the activation of the extracellular signal-regulated kinase (ERK) signaling pathway, which is followed by an increase in matrix metalloproteinase expression and their extracellular enzymatic activity. Overall we reveal the AMG-mediated wound healing transcriptional signature and shed light on the AMG molecular mechanism supporting its potential to trigger a highly improved wound healing process. In this way, we present a framework for future improvements in AMG therapy for skin tissue regeneration applications.
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32
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Tanave A, Imai Y, Koide T. Nested retrotransposition in the East Asian mouse genome causes the classical nonagouti mutation. Commun Biol 2019; 2:283. [PMID: 31396563 PMCID: PMC6677723 DOI: 10.1038/s42003-019-0539-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 07/10/2019] [Indexed: 01/31/2023] Open
Abstract
Black coat color (nonagouti) is a widespread classical mutation in laboratory mouse strains. The intronic insertion of endogenous retrovirus VL30 in the nonagouti (a) allele of agouti gene was previously reported as the cause of the nonagouti phenotype. Here, we report agouti mouse strains from East Asia that carry the VL30 insertion, indicating that VL30 alone does not cause the nonagouti phenotype. We find that a rare type of endogenous retrovirus, β4, was integrated into the VL30 region at the a allele through nested retrotransposition, causing abnormal splicing. Targeted complete deletion of the β4 element restores agouti gene expression and agouti coat color, whereas deletion of β4 except for a single long terminal repeat results in black-and-tan coat color. Phylogenetic analyses show that the a allele and the β4 retrovirus originated from an East Asian mouse lineage most likely related to Japanese fancy mice. These findings reveal the causal mechanism and historic origin of the classical nonagouti mutation.
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Affiliation(s)
- Akira Tanave
- Mouse Genomics Resource Laboratory, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540 Japan
- Present Address: Laboratory for Mouse Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, 1–3 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Yuji Imai
- Mouse Genomics Resource Laboratory, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540 Japan
| | - Tsuyoshi Koide
- Mouse Genomics Resource Laboratory, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540 Japan
- Department of Genetics, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka 411-8540 Japan
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33
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Performance of a glucose-reactive enzyme-based biofuel cell system for biomedical applications. Sci Rep 2019; 9:10872. [PMID: 31350441 PMCID: PMC6659637 DOI: 10.1038/s41598-019-47392-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 07/16/2019] [Indexed: 01/12/2023] Open
Abstract
A glucose-reactive enzyme-based biofuel cell system (EBFC) was recently introduced in the scientific community for biomedical applications, such as implantable artificial organs and biosensors for drug delivery. Upon direct contact with tissues or organs, an implanted EBFC can exert effects that damage or stimulate intact tissue due to its byproducts or generated electrical cues, which have not been investigated in detail. Here, we perform a fundamental cell culture study using a glucose dehydrogenase (GDH) as an anode enzyme and bilirubin oxidase (BOD) as a cathode enzyme. The fabricated EBFC had power densities of 15.26 to 38.33 nW/cm2 depending on the enzyme concentration in media supplemented with 25 mM glucose. Despite the low power density, the GDH-based EBFC showed increases in cell viability (~150%) and cell migration (~90%) with a relatively low inflammatory response. However, glucose oxidase (GOD), which has been used as an EBFC anode enzyme, revealed extreme cytotoxicity (~10%) due to the lethal concentration of H2O2 byproducts (~1500 µM). Therefore, with its cytocompatibility and cell-stimulating effects, the GDH-based EBFC is considered a promising implantable tool for generating electricity for biomedical applications. Finally, the GDH-based EBFC can be used for introducing electricity during cell culture and the fabrication of organs on a chip and a power source for implantable devices such as biosensors, biopatches, and artificial organs.
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34
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Yu X, Zhong P, Han Y, Huang Q, Wang J, Jia C, Lv Z. Key candidate genes associated with BRAF
V600E
in papillary thyroid carcinoma on microarray analysis. J Cell Physiol 2019; 234:23369-23378. [PMID: 31161615 DOI: 10.1002/jcp.28906] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Xiaqing Yu
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, School of Medicine Tongji University Shanghai China
| | - Peng Zhong
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, School of Medicine Tongji University Shanghai China
| | - Yali Han
- Shanghai Center for Thyroid Disease, Shanghai Tenth People's Hospital School of Medicine, Tongji University Shanghai China
| | - Qingqing Huang
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, School of Medicine Tongji University Shanghai China
| | - Jian Wang
- Department of Nuclear Medicine, Sir Run Run Shaw Hospital, School of Medicine Zhejiang University Hangzhou China
| | - Chengyou Jia
- Shanghai Center for Thyroid Disease, Shanghai Tenth People's Hospital School of Medicine, Tongji University Shanghai China
| | - Zhongwei Lv
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, School of Medicine Tongji University Shanghai China
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35
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Inhibition of LONP1 Suppresses Pancreatic Cancer Progression Via c-Jun N-Terminal Kinase Pathway-Meditated Epithelial-Mesenchymal Transition. Pancreas 2019; 48:629-635. [PMID: 31091208 DOI: 10.1097/mpa.0000000000001321] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the role of LONP1 in the progression of pancreatic cancer. METHODS Lentivirus was used to silence LONP1 in PANC-1 cells. Colony formation assay, cell counting kit (CCK8) assay, cell scratch-wound assay, and transwell assay were used to assess the effects of our strategy on inhibiting cancer growth, migration, and invasion. Protein expression was detected by Western blot analysis. RESULTS The expression of LONP1 in pancreatic carcinoma tissues was higher than that in adjacent normal pancreatic tissues. Downregulation of LONP1 suppressed the proliferation, migration, and invasion of PANC-1 cells. Knockdown of LONP1 in PANC-1 cells inhibited epithelial-mesenchymal transition and matrix metalloprotein (MMP) 2/9 by downregulation of vimentin, snail, slug, MMP2, and MMP9 and upregulation of claudin-1. The c-Jun N-terminal kinase pathway was inactivated in LONP1 knockdown PANC-1 cells. Activation of the c-Jun N-terminal kinase pathway by anisomycin treatment significantly reversed the changes in epithelial-mesenchymal transition markers and MMP2/9 induced by ablation of LONP1 in PANC-1 cells. CONCLUSIONS LONP1 plays a vital role in the proliferation and metastasis of pancreatic cancer, which provides a potential therapeutic target for the treatment of pancreatic cancer.
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36
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Geng K, Wang J, Liu P, Tian X, Liu H, Wang X, Hu C, Yan H. Electrical stimulation facilitates the angiogenesis of human umbilical vein endothelial cells through MAPK/ERK signaling pathway by stimulating FGF2 secretion. Am J Physiol Cell Physiol 2019; 317:C277-C286. [PMID: 30995109 DOI: 10.1152/ajpcell.00474.2018] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Electrical stimulation (ES) is able to enhance angiogenesis by stimulating fibroblasts. Fibroblast growth factor 2 (FGF2) is an independent angiogenesis inducer. The present study aimed to evaluate the role of ES-induced FGF2 secretion in affecting angiogenesis during wound healing via the mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) signaling pathway. Fibroblasts and human umbilical vein endothelial cells (HUVECs) were exposed to ES, and the HUVECs were cocultured with ES-treated fibroblast culture solution. ES exposure showed no toxic effects on fibroblasts or HUVECs. ES led to enhanced growth of fibroblasts and HUVECs as well as FGF2 secretion, which is induced through the NOS pathway. ES-induced FGF2 secretion was shown to increase vascular endothelial growth factor (VEGF) protein and enhance migration, invasion, and angiogenesis of HUVECs. Also, ES-induced FGF2 secretion activated the MAPK/ERK signaling pathway. However, inhibition of the MAPK/ERK signaling pathway reversed the positive effects of ES-induced FGF2 secretion. In vitro experiments showed positive effects of ES on wound healing. Taken together, the findings suggested that ES promoted FGF2 secretion and then activated the MAPK/ERK signaling pathway by facilitating angiogenesis and promoting wound healing.
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Affiliation(s)
- Kang Geng
- Department of Burns and Plastic Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jing Wang
- Southwest Petroleum University College of Mechanical and Electrical Engineering, Chengdu, China
| | - Pengfei Liu
- Department of Orthopedics, Aerospace 731 Hospital, Beijing,China
| | - Xinli Tian
- Department of Burns and Plastic Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Hongjun Liu
- Department of Burns and Plastic Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xue Wang
- Department of Burns and Plastic Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Chunbing Hu
- Department of Plastic Surgery, Yuehao Medical Beauty Hospital, Chengdu, China
| | - Hong Yan
- Department of Burns and Plastic Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
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37
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Synthesis and fabrication of a keratin-conjugated insulin hydrogel for the enhancement of wound healing. Colloids Surf B Biointerfaces 2019; 175:436-444. [DOI: 10.1016/j.colsurfb.2018.12.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/08/2018] [Accepted: 12/10/2018] [Indexed: 12/30/2022]
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38
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Kloc M, Ghobrial RM, Wosik J, Lewicka A, Lewicki S, Kubiak JZ. Macrophage functions in wound healing. J Tissue Eng Regen Med 2018; 13:99-109. [PMID: 30445662 DOI: 10.1002/term.2772] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/31/2018] [Accepted: 11/13/2018] [Indexed: 12/31/2022]
Abstract
Macrophages play a crucial role in regeneration and consecutive phases of wound healing. In this review, we summarise current knowledge on the ontogeny, origin, phenotypical heterogeneity, and functional exchangeability of macrophages participating in these processes. We also describe the genetic, pharmacologic, and bioengineering methods for manipulation of macrophage phenotype and functions and their potential for development of the novel, clinically applicable therapies.
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Affiliation(s)
- Malgorzata Kloc
- Immunobiology, The Houston Methodist Research Institute, Houston, Texas, USA.,Department of Surgery, The Houston Methodist Hospital, Houston, Texas, USA.,MD Anderson Cancer Center, University of Texas, Houston, Texas, USA
| | - Rafik M Ghobrial
- Immunobiology, The Houston Methodist Research Institute, Houston, Texas, USA.,Department of Surgery, The Houston Methodist Hospital, Houston, Texas, USA
| | - Jarek Wosik
- Electrical and Computer Engineering Department, University of Houston, Houston, Texas, USA.,Texas Center for Superconductivity, University of Houston, Houston, Texas, USA
| | - Aneta Lewicka
- Laboratory of Epidemiology, Military Institute of Hygiene and Epidemiology (WIHE), Warsaw, Poland
| | - Sławomir Lewicki
- Department of Regenerative Medicine and Cell Biology, Military Institute of Hygiene and Epidemiology (WIHE), Warsaw, Poland
| | - Jacek Z Kubiak
- Department of Regenerative Medicine and Cell Biology, Military Institute of Hygiene and Epidemiology (WIHE), Warsaw, Poland.,Cell Cycle Group, Faculty of Medicine, Univ Rennes, UMR 6290, CNRS, Institute of Genetics and Development of Rennes, Rennes, France
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39
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Sano T, Kobayashi T, Ogawa O, Matsuda M. Gliding Basal Cell Migration of the Urothelium during Wound Healing. THE AMERICAN JOURNAL OF PATHOLOGY 2018; 188:2564-2573. [PMID: 30121259 DOI: 10.1016/j.ajpath.2018.07.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/01/2018] [Accepted: 07/02/2018] [Indexed: 01/04/2023]
Abstract
Collective cell migration during wound healing has been extensively studied in the epidermis. However, it remains unknown whether the urothelium repairs wounds in a manner similar to the epidermis. By in vivo two-photon excitation microscopy of transgenic mice that express fluorescent biosensors, we studied the collective cell migration of the urothelium in comparison with that of the epidermis. In vivo time-lapse imaging revealed that, even in the absence of a wound, urothelial cells continuously moved and sometimes glided as a sheet over the underlying lamina propria. On abrasion of the epithelium, the migration speed of each epidermal cell was inversely correlated with the distance to the wound edge. Repetitive activation waves of extracellular signal-regulated kinase (ERK) were generated at and propagated away from the wound edge. In contrast, urothelial cells glided as a sheet over the lamina propria without any ERK activation waves. Accordingly, the mitogen-activated protein kinase/ERK kinase inhibitor PD0325901 decreased the migration velocity of the epidermis but not the urothelium. Interestingly, the tyrosine kinase inhibitor dasatinib inhibited migration of the urothelium as well as the epidermis, suggesting that the gliding migration of the urothelium is an active, not a passive, migration. In conclusion, the urothelium glides over the lamina propria to fill wounds in an ERK-independent manner, whereas the epidermis crawls to cover wounds in an ERK-dependent manner.
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Affiliation(s)
- Takeshi Sano
- Department of Pathology and Biology of Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takashi Kobayashi
- Department of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Osamu Ogawa
- Department of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Michiyuki Matsuda
- Department of Pathology and Biology of Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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40
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Sundaram GM, Quah S, Sampath P. Cancer: the dark side of wound healing. FEBS J 2018; 285:4516-4534. [PMID: 29905002 DOI: 10.1111/febs.14586] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/17/2018] [Accepted: 06/13/2018] [Indexed: 12/19/2022]
Abstract
Complex multicellular organisms have evolved sophisticated mechanisms to rapidly resolve epithelial injuries. Epithelial integrity is critical to maintaining internal homeostasis. An epithelial breach represents the potential for pathogen ingress and fluid loss, both of which may have severe consequences if not limited. The mammalian wound healing response involves a finely tuned, self-limiting series of cellular and molecular events orchestrated by the transient activation of specific signalling pathways. Accurate regulation of these events is essential; failure to initiate key steps at the right time delays healing and leads to chronic wounds, while aberrant initiation of wound healing processes may produce cell behaviours that promote cancer progression. In this review, we discuss how wound healing pathways co-opted in cancer lose their stringent regulation and become compromised in their reversibility. We hypothesize on how the commandeering of wound healing 'master regulators' is involved in this process, and also highlight the implications of these findings in the treatment of both chronic wounds and cancer.
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Affiliation(s)
- Gopinath M Sundaram
- Institute of Medical Biology, Agency for Science Technology & Research (A*STAR), Singapore City, Singapore
| | - Shan Quah
- Institute of Medical Biology, Agency for Science Technology & Research (A*STAR), Singapore City, Singapore
| | - Prabha Sampath
- Institute of Medical Biology, Agency for Science Technology & Research (A*STAR), Singapore City, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore City, Singapore
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41
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Zhu S, Li S, Escuin-Ordinas H, Dimatteo R, Xi W, Ribas A, Segura T. Accelerated wound healing by injectable star poly(ethylene glycol)-b-poly(propylene sulfide) scaffolds loaded with poorly water-soluble drugs. J Control Release 2018; 282:156-165. [PMID: 29751029 DOI: 10.1016/j.jconrel.2018.05.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 05/03/2018] [Accepted: 05/07/2018] [Indexed: 12/11/2022]
Abstract
Injectable hydrogel matrices take the shape of a wound cavity and serve as scaffold for tissue repair and regeneration. Yet these materials are generally hydrophilic, limiting the incorporation of poorly water soluble, hydrophobic drugs. Here we show this shortcoming is circumvented through a star-shaped amphiphilic block copolymer comprising poly(ethylene glycol) and poly (propylene sulfide). This star-shaped amphiphilic polymer self-assembles in an aqueous medium into a physically stable hydrogel and effectively dissolves hydrophobic molecules delivering them at therapeutic doses. The self assembled hydrogel is a robust three-dimensional scaffold in vivo effectively promoting cellular infiltration, reducing inflammation, and wound clsoure. When combined with a hydrophobic BRAF inhibitor that promotes paradoxical mitogen-activated protein kinase (MAPK) activation in keratinocytes and wound closure, our self assembled scaffold supported dermal wound closure at a reduced drug dosage compared to administering the drug in dimethyl sulfoxide (DMSO) without a polymeric matrix. This family of star-shaped amphiphilic polymers delivers poorly water soluble active agents at a fraction of generally required dosage for efficacy and supports three-dimensional cell growth at tissue wounds, showing great promise for novel uses of hydrophobic drugs in tissue repair applications.
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Affiliation(s)
- Suwei Zhu
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States
| | - Shuoran Li
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States
| | - Helena Escuin-Ordinas
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States
| | - Robert Dimatteo
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States
| | - Weixian Xi
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States; Department of Orthopedic Surgery, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States
| | - Antoni Ribas
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States; Department of Surgery, Division of Surgical Oncology, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States; Department of Molecular and Medical Pharmacology, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States
| | - Tatiana Segura
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, 420 Westwood Plaza, 5531 Boelter Hall, Los Angeles, CA 90095, United States; Department of Biomedical Engineering, Duke Univeristy, 101 Science Drive, PO Box 90281, 27708, United States.
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42
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Yu Q, Han Y, Wang X, Qin C, Zhai D, Yi Z, Chang J, Xiao Y, Wu C. Copper Silicate Hollow Microspheres-Incorporated Scaffolds for Chemo-Photothermal Therapy of Melanoma and Tissue Healing. ACS NANO 2018; 12:2695-2707. [PMID: 29518321 DOI: 10.1021/acsnano.7b08928] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The treatment of melanoma requires complete removal of tumor cells and simultaneous tissue regeneration of tumor-initiated cutaneous defects. Herein, copper silicate hollow microspheres (CSO HMSs)-incorporated bioactive scaffolds were designed for chemo-photothermal therapy of skin cancers and regeneration of skin tissue. CSO HMSs were synthesized with interior hollow and external nanoneedle microstructure, showing excellent drug-loading capacity and photothermal effects. With incorporation of drug-loaded CSO HMSs into the electrospun scaffolds, the composite scaffolds exhibited excellent photothermal effects and controlled NIR-triggered drug release, leading to distinctly synergistic chemo-photothermal therapy of skin cancer both in vitro and in vivo. Furthermore, such CSO HMSs-incorporated scaffolds could promote proliferation and attachment of normal skin cells and accelerate skin tissue healing in tumor-bearing and diabetic mice. Taken together, CSO HMSs-incorporated scaffolds may be used for complete eradication of the remaining tumor cells after surgery and simultaneous tissue healing, which offers an effective strategy for therapy and regeneration of tumor-initiated tissue defects.
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Affiliation(s)
- Qingqing Yu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , 19 Yuquan Road , Beijing 100049 , People's Republic of China
| | - Yiming Han
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , People's Republic of China
| | - Xiaocheng Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , 19 Yuquan Road , Beijing 100049 , People's Republic of China
| | - Chen Qin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , 19 Yuquan Road , Beijing 100049 , People's Republic of China
| | - Dong Zhai
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road , Shanghai 200050 , People's Republic of China
| | - Zhengfang Yi
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , People's Republic of China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road , Shanghai 200050 , People's Republic of China
| | - Yin Xiao
- The Institute of Health and Biomedical Innovation , Queensland University of Technology , 80 Musk Avenue , Queensland 4059 , Australia
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road , Shanghai 200050 , People's Republic of China
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Kersh AE, Ng S, Chang YM, Sasaki M, Thomas SN, Kissick HT, Lesinski GB, Kudchadkar RR, Waller EK, Pollack BP. Targeted Therapies: Immunologic Effects and Potential Applications Outside of Cancer. J Clin Pharmacol 2018; 58:7-24. [PMID: 29136276 PMCID: PMC5972536 DOI: 10.1002/jcph.1028] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 09/13/2017] [Indexed: 12/17/2022]
Abstract
Two pharmacologic approaches that are currently at the forefront of treating advanced cancer are those that center on disrupting critical growth/survival signaling pathways within tumor cells (commonly referred to as "targeted therapies") and those that center on enhancing the capacity of a patient's immune system to mount an antitumor response (immunotherapy). Maximizing responses to both of these approaches requires an understanding of the oncogenic events present in a given patient's tumor and the nature of the tumor-immune microenvironment. Although these 2 modalities were developed and initially used independently, combination regimens are now being tested in clinical trials, underscoring the need to understand how targeted therapies influence immunologic events. Translational studies and preclinical models have demonstrated that targeted therapies can influence immune cell trafficking, the production of and response to chemokines and cytokines, antigen presentation, and other processes relevant to antitumor immunity and immune homeostasis. Moreover, because these and other effects of targeted therapies occur in nonmalignant cells, targeted therapies are being evaluated for use in applications outside of oncology.
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Affiliation(s)
- Anna E. Kersh
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA, USA
| | - Spencer Ng
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA, USA
| | - Yun Min Chang
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA, USA
- Emory Vaccine Center, Atlanta, GA
| | | | - Susan N. Thomas
- Emory University Winship Cancer Institute, Atlanta, GA, USA
- George W. Woodruff School of Mechanical Engineering, Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
| | - Haydn T. Kissick
- Emory University Winship Cancer Institute, Atlanta, GA, USA
- Department of Urology, Emory University School of Medicine, Atlanta, GA, USA
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA, USA
| | - Gregory B. Lesinski
- Emory University Winship Cancer Institute, Atlanta, GA, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - Ragini R. Kudchadkar
- Emory University Winship Cancer Institute, Atlanta, GA, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - Edmund K. Waller
- Emory University Winship Cancer Institute, Atlanta, GA, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - Brian P. Pollack
- Atlanta VA Medical Center, Atlanta, GA, USA
- Department of Dermatology, Emory University School of Medicine, Atlanta, GA, USA
- Emory University Winship Cancer Institute, Atlanta, GA, USA
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Meng W, Veluchamy A, Hébert H, Campbell A, Colhoun H, Palmer C. A genome-wide association study suggests that MAPK14 is associated with diabetic foot ulcers. Br J Dermatol 2017; 177:1664-1670. [PMID: 28672053 PMCID: PMC5829525 DOI: 10.1111/bjd.15787] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND Diabetic foot ulcers (DFUs) are a devastating complication of diabetes. OBJECTIVES To identify genetic contributors to the development of DFUs in the presence of peripheral neuropathy in a Scottish cohort with diabetes using a genome-wide association study. METHODS A genome-wide association approach was applied. A case was defined as a person with diabetes (type 1 or type 2) who had ever had a foot ulcer (current or previous) in at least one foot, as well as a positive monofilament test result (i.e. evidence of peripheral neuropathy) recorded in their longitudinal e-health records. A control was defined as an individual with diabetes (type 1 or type 2) who has never been recorded as having a foot ulcer in either foot but who had a positive monofilament test result recorded in either foot in their longitudinal e-health records. RESULTS There were 699 DFU cases and 2695 controls in the Genetics of Diabetes Audit and Research in Tayside Scotland (GoDARTS) dataset. The single-nucleotide polymorphism rs80028505 (Chr6p21·31) in MAPK14 reached genome-wide significance with a lowest P-value of 2·45 × 10-8 . The narrow-sense heritability of this phenotype is 0·06. CONCLUSIONS We suggest that MAPK14 is associated with DFUs.
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Affiliation(s)
- W. Meng
- Division of Population Health SciencesNinewells Hospital and School of MedicineUniversity of DundeeDundeeDD2 4BFU.K.
| | - A. Veluchamy
- Division of Population Health SciencesNinewells Hospital and School of MedicineUniversity of DundeeDundeeDD2 4BFU.K.
| | - H.L. Hébert
- Division of Population Health SciencesNinewells Hospital and School of MedicineUniversity of DundeeDundeeDD2 4BFU.K.
| | - A. Campbell
- Division of Population Health SciencesNinewells Hospital and School of MedicineUniversity of DundeeDundeeDD2 4BFU.K.
| | - H.M. Colhoun
- Institute of Genetics and Molecular MedicineWestern General Hospital, Crewe RoadUniversity of EdinburghEdinburghU.K.
| | - C.N.A. Palmer
- Centre for Pharmacogenetics and PharmacogenomicsNinewells Hospital and School of MedicineUniversity of DundeeDundeeDD2 4BFU.K.
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PIK3CA H1047R-induced paradoxical ERK activation results in resistance to BRAF V600E specific inhibitors in BRAF V600E PIK3CA H1047R double mutant thyroid tumors. Oncotarget 2017; 8:103207-103222. [PMID: 29262556 PMCID: PMC5732722 DOI: 10.18632/oncotarget.21732] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 09/23/2017] [Indexed: 01/09/2023] Open
Abstract
Thyroid carcinomas are the most prevalent endocrine cancers. The BRAFV600E mutation is found in 40% of the papillary type and 25% of the anaplastic type. BRAFV600E inhibitors have shown great success in melanoma but, they have been, to date, less successful in thyroid cancer. About 50% of anaplastic thyroid carcinomas present mutations/amplification of the phosphatidylinositol 3’ kinase. Here we propose to investigate if the hyper activation of that pathway could influence the response to BRAFV600E specific inhibitors. To test this, we used two mouse models of thyroid cancer. Single mutant (BRAFV600E) mice responded to BRAFV600E-specific inhibition (PLX-4720), while double mutant mice (BRAFV600E; PIK3CAH1047R) showed resistance and even signs of aggravation. This resistance was abrogated by combination with a phosphoinositide 3-kinase inhibitor. At the molecular level, we showed that this resistance was concomitant to a paradoxical activation of the MAP-Kinase pathway, which could be overturned by phosphoinositide 3-kinase inhibition in vivo in our mouse model and in vitro in human double mutant cell lines. In conclusion, we reveal a phosphoinositide 3-kinase driven, paradoxical MAP-Kinase pathway activation as mechanism for resistance to BRAFV600E specific inhibitors in a clinically relevant mouse model of thyroid cancer.
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Vitali F, Marini S, Balli M, Grosemans H, Sampaolesi M, Lussier YA, Cusella De Angelis MG, Bellazzi R. Exploring Wound-Healing Genomic Machinery with a Network-Based Approach. Pharmaceuticals (Basel) 2017. [PMID: 28635674 PMCID: PMC5490412 DOI: 10.3390/ph10020055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The molecular mechanisms underlying tissue regeneration and wound healing are still poorly understood despite their importance. In this paper we develop a bioinformatics approach, combining biology and network theory to drive experiments for better understanding the genetic underpinnings of wound healing mechanisms and for selecting potential drug targets. We start by selecting literature-relevant genes in murine wound healing, and inferring from them a Protein-Protein Interaction (PPI) network. Then, we analyze the network to rank wound healing-related genes according to their topological properties. Lastly, we perform a procedure for in-silico simulation of a treatment action in a biological pathway. The findings obtained by applying the developed pipeline, including gene expression analysis, confirms how a network-based bioinformatics method is able to prioritize candidate genes for in vitro analysis, thus speeding up the understanding of molecular mechanisms and supporting the discovery of potential drug targets.
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Affiliation(s)
- Francesca Vitali
- Center for Biomedical Informatics and Biostatistics, The University of Arizona Health Sciences, Tucson, AZ 85721, USA.
- BIO5 Institute Center for Biomedical Informatics and Biostatistics, The University of Arizona, Tucson, AZ 85721, USA.
- Department of Medicine, The University of Arizona, Tucson, AZ 85721, USA.
| | - Simone Marini
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia 27100, Italy.
- Centre for Health Technologies, University of Pavia, Pavia 27100, Italy.
| | - Martina Balli
- Department of Development and Regeneration, Laboratory of Translational Cardiomyology, KULeuven, 3000 Leuven, Belgium.
- Department of Public Health, Experimental and Forensic Medicine, Institute of Human Anatomy, University of Pavia, Pavia 27100, Italy.
| | - Hanne Grosemans
- Department of Development and Regeneration, Laboratory of Translational Cardiomyology, KULeuven, 3000 Leuven, Belgium.
| | - Maurilio Sampaolesi
- Department of Development and Regeneration, Laboratory of Translational Cardiomyology, KULeuven, 3000 Leuven, Belgium.
- Department of Public Health, Experimental and Forensic Medicine, Institute of Human Anatomy, University of Pavia, Pavia 27100, Italy.
| | - Yves A Lussier
- Center for Biomedical Informatics and Biostatistics, The University of Arizona Health Sciences, Tucson, AZ 85721, USA.
- BIO5 Institute Center for Biomedical Informatics and Biostatistics, The University of Arizona, Tucson, AZ 85721, USA.
- Department of Medicine, The University of Arizona, Tucson, AZ 85721, USA.
| | | | - Riccardo Bellazzi
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia 27100, Italy.
- Istituti Clinici Scientifici Maugeri, Pavia 27100, Italy.
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Schuliga M, Jaffar J, Berhan A, Langenbach S, Harris T, Waters D, Lee PVS, Grainge C, Westall G, Knight D, Stewart AG. Annexin A2 contributes to lung injury and fibrosis by augmenting factor Xa fibrogenic activity. Am J Physiol Lung Cell Mol Physiol 2017; 312:L772-L782. [DOI: 10.1152/ajplung.00553.2016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/06/2017] [Accepted: 03/06/2017] [Indexed: 12/11/2022] Open
Abstract
In lung injury and disease, including idiopathic pulmonary fibrosis (IPF), extravascular factor X is converted into factor Xa (FXa), a coagulant protease with fibrogenic actions. Extracellular annexin A2 binds to FXa, augmenting activation of the protease-activated receptor-1 (PAR-1). In this study, the contribution of annexin A2 in lung injury and fibrosis was investigated. Annexin A2 immunoreactivity was observed in regions of fibrosis, including those associated with fibroblasts in lung tissue of IPF patients. Furthermore, annexin A2 was detected in the conditioned media and an EGTA membrane wash of human lung fibroblast (LF) cultures. Incubation with human plasma (5% vol/vol) or purified FXa (15–50 nM) evoked fibrogenic responses in LF cultures, with FXa increasing interleukin-6 (IL-6) production and cell number by 270 and 46%, respectively ( P < 0.05, n = 5–8). The fibrogenic actions of plasma or FXa were attenuated by the selective FXa inhibitor apixaban (10 μM, or antibodies raised against annexin A2 or PAR-1 (2 μg/ml). FXa-stimulated LFs from IPF patients ( n = 6) produced twice as much IL-6 as controls ( n = 10) ( P < 0.05), corresponding with increased levels of extracellular annexin A2. Annexin A2 gene deletion in mice reduced bleomycin-induced increases in bronchoalveolar lavage fluid (BALF) IL-6 levels and cell number (* P < 0.05; n = 4–12). Lung fibrogenic gene expression and dry weight were reduced by annexin A2 gene deletion, but lung levels of collagen were not. Our data suggest that annexin A2 contributes to lung injury and fibrotic disease by mediating the fibrogenic actions of FXa. Extracellular annexin A2 is a potential target for the treatment of IPF.
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Affiliation(s)
- Michael Schuliga
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria, Australia
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Jade Jaffar
- Department of Allergy, Immunology, and Respiratory Medicine, Alfred Hospital, Prahran, Victoria, Australia
| | - Asres Berhan
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria, Australia
| | - Shenna Langenbach
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria, Australia
| | - Trudi Harris
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria, Australia
| | - David Waters
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Peter V. S. Lee
- Department of Mechanical Engineering, University of Melbourne, Parkville, Victoria, Australia
| | - Christopher Grainge
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia; and
| | - Glen Westall
- Department of Allergy, Immunology, and Respiratory Medicine, Alfred Hospital, Prahran, Victoria, Australia
| | - Darryl Knight
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
- Department of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Alastair G. Stewart
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria, Australia
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