1
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Gorai S, Rathore G, Das K. Selumetinib-A Comprehensive Review of the New FDA-Approved Drug for Neurofibromatosis. Indian Dermatol Online J 2024; 15:701-705. [PMID: 39050082 PMCID: PMC11265740 DOI: 10.4103/idoj.idoj_569_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 03/04/2024] [Accepted: 04/05/2024] [Indexed: 07/27/2024] Open
Affiliation(s)
- Surajit Gorai
- Department of Dermatology, Day Care Building, Apollo Multispeciality Hospital, Kolkata, West Bengal, India
| | - Gyanesh Rathore
- Department of Dermatology, Day Care Building, Apollo Multispeciality Hospital, Kolkata, West Bengal, India
| | - Kinnor Das
- Department of Dermatology, Day Care Building, Apollo Multispeciality Hospital, Kolkata, West Bengal, India
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2
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Chen C, Jiang YP, You I, Gray NS, Lin RZ. Down-Regulation of AKT Proteins Slows the Growth of Mutant-KRAS Pancreatic Tumors. Cells 2024; 13:1061. [PMID: 38920688 PMCID: PMC11202146 DOI: 10.3390/cells13121061] [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: 05/07/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/27/2024] Open
Abstract
Serine/threonine kinase AKT isoforms play a well-established role in cell metabolism and growth. Most pancreatic adenocarcinomas (PDACs) harbor activation mutations of KRAS, which activates the PI3K/AKT signaling pathway. However, AKT inhibitors are not effective in the treatment of pancreatic cancer. To better understand the role of AKT signaling in mutant-KRAS pancreatic tumors, this study utilized proteolysis-targeting chimeras (PROTACs) and CRISPR-Cas9-genome editing to investigate AKT proteins. The PROTAC down-regulation of AKT proteins markedly slowed the growth of three pancreatic tumor cell lines harboring mutant KRAS. In contrast, the inhibition of AKT kinase activity alone had very little effect on the growth of these cell lines. The concurrent genetic deletion of all AKT isoforms (AKT1, AKT2, and AKT3) in the KPC (KrasG12D; Trp53R172H; Pdx1-Cre) pancreatic cancer cell line also dramatically slowed its growth in vitro and when orthotopically implanted in syngeneic mice. Surprisingly, insulin-like growth factor-1 (IGF-1), but not epidermal growth factor (EGF), restored KPC cell growth in serum-deprived conditions, and the IGF-1 growth stimulation effect was AKT-dependent. The RNA-seq analysis of AKT1/2/3-deficient KPC cells suggested that reduced cholesterol synthesis may be responsible for the decreased response to IGF-1 stimulation. These results indicate that the presence of all three AKT isoforms supports pancreatic tumor cell growth, and the pharmacological degradation of AKT proteins may be more effective than AKT catalytic inhibitors for treating pancreatic cancer.
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Affiliation(s)
- Chuankai Chen
- Department of Physiology & Biophysics, Stony Brook University, Stony Brook, NY 11794, USA; (C.C.); (Y.-P.J.)
- Graduate Program in Genetics, Stony Brook University, Stony Brook, NY 11790, USA
| | - Ya-Ping Jiang
- Department of Physiology & Biophysics, Stony Brook University, Stony Brook, NY 11794, USA; (C.C.); (Y.-P.J.)
| | - Inchul You
- Department of Chemical and Systems Biology, ChEM-H, and Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, CA 94305, USA; (I.Y.); (N.S.G.)
| | - Nathanael S. Gray
- Department of Chemical and Systems Biology, ChEM-H, and Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, CA 94305, USA; (I.Y.); (N.S.G.)
| | - Richard Z. Lin
- Department of Physiology & Biophysics, Stony Brook University, Stony Brook, NY 11794, USA; (C.C.); (Y.-P.J.)
- Northport VA Medical Center, Northport, NY 11768, USA
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3
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Chen C, Jiang YP, You I, Gray NS, Lin RZ. Down-regulation of AKT proteins slows the growth of mutant-KRAS pancreatic tumors. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.03.592345. [PMID: 38746217 PMCID: PMC11092743 DOI: 10.1101/2024.05.03.592345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Serine/threonine kinase AKT isoforms play a well-established role in cell metabolism and growth. Most pancreatic adenocarcinoma (PDAC) harbors activation mutations of KRAS, which activates the PI3K/AKT signaling pathway. However, AKT inhibitors are not effective in the treatment of pancreatic cancer. To better understand the role of AKT signaling in mutant-KRAS pancreatic tumors, this study utilizes proteolysis-targeting chimeras (PROTACs) and CRISPR-Cas9-genome editing to investigate AKT proteins. PROTAC down-regulation of AKT proteins markedly slowed the growth of three pancreatic tumor cell lines harboring mutant KRAS. In contrast, inhibition of AKT kinase activity alone had very little effect on the growth of these cell lines. Concurrent genetic deletion of all AKT isoforms (AKT1, AKT2, and AKT3) in the KPC (KrasG12D; Trp53R172H; Pdx1-Cre) pancreatic cancer cell line also dramatically slowed its growth in vitro and when orthotopically implanted in syngeneic mice. Surprisingly, insulin-like growth factor-1 (IGF-1), but not epidermal growth factor (EGF), restored KPC cell growth in serum-deprived conditions and the IGF-1 growth stimulation effect was AKT dependent. RNA-seq analysis of AKT1/2/3-deficient KPC cells suggested that reduced cholesterol synthesis may be responsible for the decreased response to IGF-1 stimulation. These results indicate that the presence of all three AKT isoforms supports pancreatic tumor cell growth and pharmacological degradation of AKT proteins may be more effective than AKT catalytic inhibitors for treating pancreatic cancer.
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Affiliation(s)
- Chuankai Chen
- Department of Physiology & Biophysics, Stony Brook University, Stony Brook, New York, USA
- Graduate Program in Genetics, Stony Brook University, New York, USA
| | - Ya-Ping Jiang
- Department of Physiology & Biophysics, Stony Brook University, Stony Brook, New York, USA
| | - Inchul You
- Department of Chemical and Systems Biology, ChEM-H, and Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, California 94305, USA
| | - Nathanael S. Gray
- Department of Chemical and Systems Biology, ChEM-H, and Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, California 94305, USA
| | - Richard Z. Lin
- Department of Physiology & Biophysics, Stony Brook University, Stony Brook, New York, USA
- Northport VA Medical Center, Northport, New York, USA
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4
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Madan B, Wadia SR, Patnaik S, Harmston N, Tan E, Tan IBH, Nes WD, Petretto E, Virshup DM. The cholesterol biosynthesis enzyme FAXDC2 couples Wnt/β-catenin to RTK/MAPK signaling. J Clin Invest 2024; 134:e171222. [PMID: 38488003 PMCID: PMC10940096 DOI: 10.1172/jci171222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 01/17/2024] [Indexed: 03/18/2024] Open
Abstract
Wnts, cholesterol, and MAPK signaling are essential for development and adult homeostasis. Here, we report that fatty acid hydroxylase domain containing 2 (FAXDC2), a previously uncharacterized enzyme, functions as a methyl sterol oxidase catalyzing C4 demethylation in the Kandutsch-Russell branch of the cholesterol biosynthesis pathway. FAXDC2, a paralog of MSMO1, regulated the abundance of the specific C4-methyl sterols lophenol and dihydro-T-MAS. Highlighting its clinical relevance, FAXDC2 was repressed in Wnt/β-catenin-high cancer xenografts, in a mouse genetic model of Wnt activation, and in human colorectal cancers. Moreover, in primary human colorectal cancers, the sterol lophenol, regulated by FAXDC2, accumulated in the cancerous tissues and not in adjacent normal tissues. FAXDC2 linked Wnts to RTK/MAPK signaling. Wnt inhibition drove increased recycling of RTKs and activation of the MAPK pathway, and this required FAXDC2. Blocking Wnt signaling in Wnt-high cancers caused both differentiation and senescence; and this was prevented by knockout of FAXDC2. Our data show the integration of 3 ancient pathways, Wnts, cholesterol synthesis, and RTK/MAPK signaling, in cellular proliferation and differentiation.
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Affiliation(s)
- Babita Madan
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
| | - Shawn R. Wadia
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
| | - Siddhi Patnaik
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
| | - Nathan Harmston
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
- Science Division, Yale-NUS College, Singapore
| | - Emile Tan
- Department of Colorectal Surgery, Singapore General Hospital, Singapore
| | - Iain Bee Huat Tan
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
- Department of Medical Oncology, National Cancer Centre, Singapore
| | - W. David Nes
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Enrico Petretto
- Center for Computational Biology and Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore
- Institute for Big Data and Artificial Intelligence in Medicine, School of Science, China Pharmaceutical University, Nanjing, China
| | - David M. Virshup
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore
- Department of Pediatrics, Duke University School of Medicine, Durham, North Carolina, USA
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5
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Daley BR, Vieira HM, Rao C, Hughes JM, Beckley ZM, Huisman DH, Chatterjee D, Sealover NE, Cox K, Askew JW, Svoboda RA, Fisher KW, Lewis RE, Kortum RL. SOS1 and KSR1 modulate MEK inhibitor responsiveness to target resistant cell populations based on PI3K and KRAS mutation status. Proc Natl Acad Sci U S A 2023; 120:e2313137120. [PMID: 37972068 PMCID: PMC10666034 DOI: 10.1073/pnas.2313137120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/20/2023] [Indexed: 11/19/2023] Open
Abstract
KRAS is the most commonly mutated oncogene. Targeted therapies have been developed against mediators of key downstream signaling pathways, predominantly components of the RAF/MEK/ERK kinase cascade. Unfortunately, single-agent efficacy of these agents is limited both by intrinsic and acquired resistance. Survival of drug-tolerant persister cells within the heterogeneous tumor population and/or acquired mutations that reactivate receptor tyrosine kinase (RTK)/RAS signaling can lead to outgrowth of tumor-initiating cells (TICs) and drive therapeutic resistance. Here, we show that targeting the key RTK/RAS pathway signaling intermediates SOS1 (Son of Sevenless 1) or KSR1 (Kinase Suppressor of RAS 1) both enhances the efficacy of, and prevents resistance to, the MEK inhibitor trametinib in KRAS-mutated lung (LUAD) and colorectal (COAD) adenocarcinoma cell lines depending on the specific mutational landscape. The SOS1 inhibitor BI-3406 enhanced the efficacy of trametinib and prevented trametinib resistance by targeting spheroid-initiating cells in KRASG12/G13-mutated LUAD and COAD cell lines that lacked PIK3CA comutations. Cell lines with KRASQ61 and/or PIK3CA mutations were insensitive to trametinib and BI-3406 combination therapy. In contrast, deletion of the RAF/MEK/ERK scaffold protein KSR1 prevented drug-induced SIC upregulation and restored trametinib sensitivity across all tested KRAS mutant cell lines in both PIK3CA-mutated and PIK3CA wild-type cancers. Our findings demonstrate that vertical inhibition of RTK/RAS signaling is an effective strategy to prevent therapeutic resistance in KRAS-mutated cancers, but therapeutic efficacy is dependent on both the specific KRAS mutant and underlying comutations. Thus, selection of optimal therapeutic combinations in KRAS-mutated cancers will require a detailed understanding of functional dependencies imposed by allele-specific KRAS mutations.
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Affiliation(s)
- Brianna R. Daley
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD20814
| | - Heidi M. Vieira
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE68198
| | - Chaitra Rao
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE68198
| | - Jacob M. Hughes
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD20814
| | - Zaria M. Beckley
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD20814
| | - Dianna H. Huisman
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE68198
| | - Deepan Chatterjee
- Department of Integrative Physiology and Molecular Medicine, University of Nebraska Medical Center, Omaha, NE68198
| | - Nancy E. Sealover
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD20814
| | - Katherine Cox
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD20814
| | - James W. Askew
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE68198
| | - Robert A. Svoboda
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE68198
| | - Kurt W. Fisher
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE68198
| | - Robert E. Lewis
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE68198
| | - Robert L. Kortum
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD20814
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6
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Morgan A, Griffin M, Kameni L, Wan DC, Longaker MT, Norton JA. Medical Biology of Cancer-Associated Fibroblasts in Pancreatic Cancer. BIOLOGY 2023; 12:1044. [PMID: 37626931 PMCID: PMC10451924 DOI: 10.3390/biology12081044] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/27/2023]
Abstract
Pancreatic cancer is one of the deadliest forms of cancer with one of the lowest 5-year survival rates of all cancer types. A defining characteristic of pancreatic cancer is the existence of dense desmoplastic stroma that, when exposed to stimuli such as cytokines, growth factors, and chemokines, generate a tumor-promoting environment. Cancer-associated fibroblasts (CAFs) are activated during the progression of pancreatic cancer and are a crucial component of the tumor microenvironment (TME). CAFs are primarily pro-tumorigenic in their activated state and function as promoters of cancer invasion, proliferation, metastasis, and immune modulation. Aided by many signaling pathways, cytokines, and chemokines in the tumor microenvironment, CAFs can originate from many cell types including resident fibroblasts, mesenchymal stem cells, pancreatic stellate cells, adipocytes, epithelial cells, endothelial cells, and other cell types. CAFs are a highly heterogeneous cell type expressing a variety of surface markers and performing a wide range of tumor promoting and inhibiting functions. Single-cell transcriptomic analyses have revealed a high degree of specialization among CAFs. Some examples of CAF subpopulations include myofibrotic CAFs (myCAFs), which exhibit a matrix-producing contractile phenotype; inflammatory CAFs (iCAF) that are classified by their immunomodulating, secretory phenotype; and antigen-presenting CAFs (apCAFs), which have antigen-presenting capabilities and express Major Histocompatibility Complex II (MHC II). Over the last several years, various attempts have been undertaken to describe the mechanisms of CAF-tumor cell interaction, as well as CAF-immune cell interaction, that contribute to tumor proliferation, invasion, and metastasis. Although our understanding of CAF biology in cancer has steadily increased, the extent of CAFs heterogeneity and their role in the pathobiology of pancreatic cancer remains elusive. In this regard, it becomes increasingly evident that further research on CAFs in pancreatic cancer is necessary.
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Affiliation(s)
- Annah Morgan
- Hagey Laboratory of Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.M.); (M.G.); (L.K.); (D.C.W.); (M.T.L.)
| | - Michelle Griffin
- Hagey Laboratory of Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.M.); (M.G.); (L.K.); (D.C.W.); (M.T.L.)
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Lionel Kameni
- Hagey Laboratory of Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.M.); (M.G.); (L.K.); (D.C.W.); (M.T.L.)
| | - Derrick C. Wan
- Hagey Laboratory of Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.M.); (M.G.); (L.K.); (D.C.W.); (M.T.L.)
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Michael T. Longaker
- Hagey Laboratory of Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.M.); (M.G.); (L.K.); (D.C.W.); (M.T.L.)
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jeffrey A. Norton
- Hagey Laboratory of Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.M.); (M.G.); (L.K.); (D.C.W.); (M.T.L.)
- Division of General Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
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Jiao J, Ruan L, Cheng CS, Wang F, Yang P, Chen Z. Paired protein kinases PRKCI-RIPK2 promote pancreatic cancer growth and metastasis via enhancing NF-κB/JNK/ERK phosphorylation. Mol Med 2023; 29:47. [PMID: 37016317 PMCID: PMC10074657 DOI: 10.1186/s10020-023-00648-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 03/27/2023] [Indexed: 04/06/2023] Open
Abstract
BACKGROUND Protein kinases play a pivotal role in the malignant evolution of pancreatic cancer (PC) through mediating phosphorylation. Many kinase inhibitors have been developed and translated into clinical use, while the complex pathology of PC confounds their clinical efficacy and warrants the discovery of more effective therapeutic targets. METHODS Here, we used the Gene Expression Omnibus (GEO) database and protein kinase datasets to map the PC-related protein kinase-encoding genes. Then, applying Gene Expression and Profiling Interactive Analysis (GEPIA), GEO and Human Protein Atlas, we evaluated gene correlation, gene expression at protein and mRNA levels, as well as survival significance. In addition, we performed protein kinase RIPK2 knockout and overexpression to observe effects of its expression on PC cell proliferation, migration and invasion in vitro, as well as cell apoptosis, reactive oxygen species (ROS) production and autophagy. We established PC subcutaneous xenograft and liver metastasis models to investigate the effects of RIPK2 knockout on PC growth and metastasis. Co-immunoprecipitation and immunofluorescence were utilized to explore the interaction between protein kinases RIPK2 and PRKCI. Polymerase chain reaction and immunoblotting were used to evaluate gene expression and protein phosphorylation level. RESULTS We found fourteen kinases aberrantly expressed in human PC and nine kinases with prognosis significance. Among them, RIPK2 with both serine/threonine and tyrosine activities were validated to promote PC cells proliferation, migration and invasion. RIPK2 knockout could inhibit subcutaneous tumor growth and liver metastasis of PC. In addition, RIPK2 knockout suppressed autophagosome formation, increased ROS production and PC cell apoptosis. Importantly, another oncogenic kinase PRKCI could interact with RIPK2 to enhance the phosphorylation of downstream NF-κB, JNK and ERK. CONCLUSION Paired protein kinases PRKCI-RIPK2 with multiple phosphorylation activities represent a new pathological mechanism in PC and could provide potential targets for PC therapy.
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Affiliation(s)
- Juying Jiao
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, No. 270 Dongan Rd., Xuhui District, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Linjie Ruan
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, No. 270 Dongan Rd., Xuhui District, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Chien-Shan Cheng
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, No. 270 Dongan Rd., Xuhui District, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Fengjiao Wang
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, No. 270 Dongan Rd., Xuhui District, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Peiwen Yang
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, No. 270 Dongan Rd., Xuhui District, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Zhen Chen
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, No. 270 Dongan Rd., Xuhui District, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
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Schneeweis C, Diersch S, Hassan Z, Krauß L, Schneider C, Lucarelli D, Falcomatà C, Steiger K, Öllinger R, Krämer OH, Arlt A, Grade M, Schmidt-Supprian M, Hessmann E, Wirth M, Rad R, Reichert M, Saur D, Schneider G. AP1/Fra1 confers resistance to MAPK cascade inhibition in pancreatic cancer. Cell Mol Life Sci 2023; 80:12. [PMID: 36534167 PMCID: PMC9763154 DOI: 10.1007/s00018-022-04638-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 11/01/2022] [Accepted: 11/16/2022] [Indexed: 12/23/2022]
Abstract
Targeting KRAS downstream signaling remains an important therapeutic approach in pancreatic cancer. We used primary pancreatic ductal epithelial cells and mouse models allowing the conditional expression of oncogenic KrasG12D, to investigate KRAS signaling integrators. We observed that the AP1 family member FRA1 is tightly linked to the KRAS signal and expressed in pre-malignant lesions and the basal-like subtype of pancreatic cancer. However, genetic-loss-of-function experiments revealed that FRA1 is dispensable for KrasG12D-induced pancreatic cancer development in mice. Using FRA1 gain- and loss-of-function models in an unbiased drug screen, we observed that FRA1 is a modulator of the responsiveness of pancreatic cancer to inhibitors of the RAF-MEK-ERK cascade. Mechanistically, context-dependent FRA1-associated adaptive rewiring of oncogenic ERK signaling was observed and correlated with sensitivity to inhibitors of canonical KRAS signaling. Furthermore, pharmacological-induced degradation of FRA1 synergizes with MEK inhibitors. Our studies establish FRA1 as a part of the molecular machinery controlling sensitivity to MAPK cascade inhibition allowing the development of mechanism-based therapies.
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Affiliation(s)
- Christian Schneeweis
- Medical Clinic and Polyclinic II, Klinikum Rechts Der Isar, Technical University Munich, 81675 Munich, Germany ,Institute for Translational Cancer Research and Experimental Cancer Therapy, Technical University Munich, 81675 Munich, Germany
| | - Sandra Diersch
- Medical Clinic and Polyclinic II, Klinikum Rechts Der Isar, Technical University Munich, 81675 Munich, Germany
| | - Zonera Hassan
- Medical Clinic and Polyclinic II, Klinikum Rechts Der Isar, Technical University Munich, 81675 Munich, Germany
| | - Lukas Krauß
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Carolin Schneider
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Daniele Lucarelli
- Institute for Translational Cancer Research and Experimental Cancer Therapy, Technical University Munich, 81675 Munich, Germany
| | - Chiara Falcomatà
- Institute for Translational Cancer Research and Experimental Cancer Therapy, Technical University Munich, 81675 Munich, Germany
| | - Katja Steiger
- Comparative Experimental Pathology, Institute of Pathology, School of Medicine, Technical Universität München, 81675 Munich, Germany ,German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Rupert Öllinger
- Institute of Molecular Oncology and Functional Genomics, TUM School of Medicine, TU München, 81675 Munich, Germany
| | - Oliver H. Krämer
- Department of Toxicology, University of Mainz Medical Center, 55131 Mainz, Germany
| | - Alexander Arlt
- Department for Internal Medicine and Gastroenterology, University Hospital, Klinikum Oldenburg AöR, 26133 Oldenburg, Germany
| | - Marian Grade
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, 37075 Göttingen, Germany ,CCC-N (Comprehensive Cancer Center Lower Saxony), Göttingen, Germany
| | - Marc Schmidt-Supprian
- German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), 69120 Heidelberg, Germany ,Institute of Experimental Hematology, School of Medicine, Technical University of Munich, 81675 Munich, Germany
| | - Elisabeth Hessmann
- CCC-N (Comprehensive Cancer Center Lower Saxony), Göttingen, Germany ,University Medical Center Göttingen Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, 37075 Göttingen, Germany ,Clinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Matthias Wirth
- Department of Hematology, Oncology and Tumor Immunology, Campus Benjamin Franklin, Charité—Universitätsmedizin Berlin, 12203 Berlin, Germany
| | - Roland Rad
- German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), 69120 Heidelberg, Germany ,Institute of Molecular Oncology and Functional Genomics, TUM School of Medicine, TU München, 81675 Munich, Germany
| | - Maximilian Reichert
- Medical Clinic and Polyclinic II, Klinikum Rechts Der Isar, Technical University Munich, 81675 Munich, Germany ,German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), 69120 Heidelberg, Germany ,Translational Pancreatic Research Cancer Center, Medical Clinic and Polyclinic II, Klinikum Rechts Der Isar, Technical University Munich, 81675 Munich, Germany
| | - Dieter Saur
- Institute for Translational Cancer Research and Experimental Cancer Therapy, Technical University Munich, 81675 Munich, Germany ,German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Günter Schneider
- Medical Clinic and Polyclinic II, Klinikum Rechts Der Isar, Technical University Munich, 81675 Munich, Germany ,Institute for Translational Cancer Research and Experimental Cancer Therapy, Technical University Munich, 81675 Munich, Germany ,Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, 37075 Göttingen, Germany ,CCC-N (Comprehensive Cancer Center Lower Saxony), Göttingen, Germany
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9
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Zou M, Fu Y, Zhao Y, Sun Y, Yin X, Peng X. Mycoplasma gallisepticum induced exosomal gga-miR-193a to disturb cell proliferation, apoptosis, and cytokine production by targeting the KRAS/ERK signaling pathway. Int Immunopharmacol 2022; 111:109090. [DOI: 10.1016/j.intimp.2022.109090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 07/19/2022] [Accepted: 07/23/2022] [Indexed: 11/15/2022]
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