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Sripathi SR, Hu MW, Turaga RC, Mikeasky R, Satyanarayana G, Cheng J, Duan Y, Maruotti J, Wahlin KJ, Berlinicke CA, Qian J, Esumi N, Zack DJ. IKKβ Inhibition Attenuates Epithelial Mesenchymal Transition of Human Stem Cell-Derived Retinal Pigment Epithelium. Cells 2023; 12:1155. [PMID: 37190063 PMCID: PMC10136838 DOI: 10.3390/cells12081155] [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: 12/10/2022] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 05/17/2023] Open
Abstract
Epithelial-mesenchymal transition (EMT), which is well known for its role in embryonic development, malignant transformation, and tumor progression, has also been implicated in a variety of retinal diseases, including proliferative vitreoretinopathy (PVR), age-related macular degeneration (AMD), and diabetic retinopathy. EMT of the retinal pigment epithelium (RPE), although important in the pathogenesis of these retinal conditions, is not well understood at the molecular level. We and others have shown that a variety of molecules, including the co-treatment of human stem cell-derived RPE monolayer cultures with transforming growth factor beta (TGF-β) and the inflammatory cytokine tumor necrosis factor alpha (TNF-α), can induce RPE-EMT; however, small molecule inhibitors of RPE-EMT have been less well studied. Here, we demonstrate that BAY651942, a small molecule inhibitor of nuclear factor kapa-B kinase subunit beta (IKKβ) that selectively targets NF-κB signaling, can modulate TGF-β/TNF-α-induced RPE-EMT. Next, we performed RNA-seq studies on BAY651942 treated hRPE monolayers to dissect altered biological pathways and signaling events. Further, we validated the effect of IKKβ inhibition on RPE-EMT-associated factors using a second IKKβ inhibitor, BMS345541, with RPE monolayers derived from an independent stem cell line. Our data highlights the fact that pharmacological inhibition of RPE-EMT restores RPE identity and may provide a promising approach for treating retinal diseases that involve RPE dedifferentiation and EMT.
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Affiliation(s)
- Srinivasa R. Sripathi
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Henderson Ocular Stem Cell Laboratory, Retina Foundation of the Southwest, Dallas, TX 75231, USA
| | - Ming-Wen Hu
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Ravi Chakra Turaga
- Caris Life Sciences, 350 W Washington St., Tempe, AZ 85281, USA
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
| | - Rebekah Mikeasky
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Ganesh Satyanarayana
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
- Emory Eye Center, Department of Ophthalmology, Emory University, Atlanta, GA 30322, USA
| | - Jie Cheng
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Yukan Duan
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | | | - Karl J. Wahlin
- Shiley Eye Institute, University of California, San Diego, CA 92093, USA
| | - Cynthia A. Berlinicke
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jiang Qian
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Noriko Esumi
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Donald J. Zack
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Molecular Biology and Genetics, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Genetic Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Institute for NanoBioTechnology, Johns Hopkins University, Whiting School of Engineering, Baltimore, MD 21218, USA
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2
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Tsesmelis M, Tiwary K, Steiger K, Sperb N, Gerstenlauer M, Manfras U, Maier HJ, Hermann PC, Chan LK, Wirth T. Deletion of NEMO Inhibits EMT and Reduces Metastasis in KPC Mice. Cancers (Basel) 2021; 13:4541. [PMID: 34572768 PMCID: PMC8471477 DOI: 10.3390/cancers13184541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/04/2021] [Accepted: 09/08/2021] [Indexed: 11/23/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) remains a largely incurable cancer type. Its high mortality is attributed to the lack of efficient biomarkers for early detection combined with its high metastatic properties. The aim of our study was to investigate the role of NF-κB signaling in the development and metastasis of PDAC. We used the well-established KPC mouse model, and, through genetic manipulation, we deleted NF-κB essential modulator (NEMO) in the pancreata of KPC mice. Interestingly, NEMO deletion altered the differentiation status of the primary tumor but did not significantly affect its development. However, in the absence of NEMO, the median survival of the mice was prolonged by 13.5 days (16%). In addition, examination of the liver demonstrated that, whereas KPC mice occasionally developed liver macro-metastasis, NEMO deletion completely abrogated this outcome. Further analysis of the tumor revealed that the expression of epithelial-mesenchymal transition (EMT) transcription factors was diminished in the absence of NEMO. Conclusively, our study provides evidence that NF-κB is dispensable for the progression of high-grade PanINs towards PDAC. In contrast, NF-κB signaling is essential for the development of metastasis by regulating the gene expression program of EMT.
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Affiliation(s)
- Miltiadis Tsesmelis
- Institute of Physiological Chemistry, University of Ulm, 89081 Ulm, Germany; (M.T.); (N.S.); (M.G.); (U.M.); (H.J.M.)
| | - Kanishka Tiwary
- Department of Internal Medicine I, University of Ulm, 89081 Ulm, Germany; (K.T.); (P.C.H.)
| | - Katja Steiger
- Department of Pathology, School of Medicine, Technical University of Munich, 81675 Munich, Germany;
| | - Nadine Sperb
- Institute of Physiological Chemistry, University of Ulm, 89081 Ulm, Germany; (M.T.); (N.S.); (M.G.); (U.M.); (H.J.M.)
| | - Melanie Gerstenlauer
- Institute of Physiological Chemistry, University of Ulm, 89081 Ulm, Germany; (M.T.); (N.S.); (M.G.); (U.M.); (H.J.M.)
| | - Uta Manfras
- Institute of Physiological Chemistry, University of Ulm, 89081 Ulm, Germany; (M.T.); (N.S.); (M.G.); (U.M.); (H.J.M.)
| | - Harald J. Maier
- Institute of Physiological Chemistry, University of Ulm, 89081 Ulm, Germany; (M.T.); (N.S.); (M.G.); (U.M.); (H.J.M.)
- Novartis Pharma AG, 4056 Basel, Switzerland
| | - Patrick C. Hermann
- Department of Internal Medicine I, University of Ulm, 89081 Ulm, Germany; (K.T.); (P.C.H.)
| | - Lap Kwan Chan
- Institute of Physiological Chemistry, University of Ulm, 89081 Ulm, Germany; (M.T.); (N.S.); (M.G.); (U.M.); (H.J.M.)
- Institute of Molecular Cancer Research, University of Zurich, 8057 Zurich, Switzerland
- Department of Pathology and Molecular Pathology, University Hospital of Zurich, 8091 Zurich, Switzerland
| | - Thomas Wirth
- Institute of Physiological Chemistry, University of Ulm, 89081 Ulm, Germany; (M.T.); (N.S.); (M.G.); (U.M.); (H.J.M.)
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3
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Rodrigues FS, Miranda VS, Carneiro-Lobo TC, Scalabrini LC, Kruspig B, Levantini E, Murphy DJ, Bassères DS. IKKβ Kinase Promotes Stemness, Migration, and Invasion in KRAS-Driven Lung Adenocarcinoma Cells. Int J Mol Sci 2020; 21:E5806. [PMID: 32823550 PMCID: PMC7460870 DOI: 10.3390/ijms21165806] [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: 06/30/2020] [Revised: 07/25/2020] [Accepted: 07/31/2020] [Indexed: 12/11/2022] Open
Abstract
KRAS oncogenic mutations are widespread in lung cancer and, because direct targeting of KRAS has proven to be challenging, KRAS-driven cancers lack effective therapies. One alternative strategy for developing KRAS targeted therapies is to identify downstream targets involved in promoting important malignant features, such as the acquisition of a cancer stem-like and metastatic phenotype. Based on previous studies showing that KRAS activates nuclear factor kappa-B (NF-κB) through inhibitor of nuclear factor kappa-B kinase β (IKKβ) to promote lung tumourigenesis, we hypothesized that inhibition of IKKβ would reduce stemness, migration and invasion of KRAS-mutant human lung cancer cells. We show that KRAS-driven lung tumoursphere-derived cells exhibit stemness features and increased IKKβ kinase activity. IKKβ targeting by different approaches reduces the expression of stemness-associated genes, tumoursphere formation, and self-renewal, and preferentially impairs the proliferation of KRAS-driven lung tumoursphere-derived cells. Moreover, we show that IKKβ targeting reduces tumour cell migration and invasion, potentially by regulating both expression and activity of matrix metalloproteinase 2 (MMP2). In conclusion, our results indicate that IKKβ is an important mediator of KRAS-induced stemness and invasive features in lung cancer, and, therefore, might constitute a promising strategy to lower recurrence rates, reduce metastatic dissemination, and improve survival of lung cancer patients with KRAS-driven disease.
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Affiliation(s)
- Felipe Silva Rodrigues
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo, Brazil; (F.S.R.); (V.S.M.); (T.C.C.-L.); (L.C.S.)
- Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK; (B.K.); (D.J.M.)
| | - Vanessa Silva Miranda
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo, Brazil; (F.S.R.); (V.S.M.); (T.C.C.-L.); (L.C.S.)
| | - Tatiana Correa Carneiro-Lobo
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo, Brazil; (F.S.R.); (V.S.M.); (T.C.C.-L.); (L.C.S.)
| | - Luiza Coimbra Scalabrini
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo, Brazil; (F.S.R.); (V.S.M.); (T.C.C.-L.); (L.C.S.)
| | - Björn Kruspig
- Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK; (B.K.); (D.J.M.)
| | - Elena Levantini
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA;
- Istituto di Tecnologie Biomediche, Consiglio Nazionale dele Ricerche, 56124 Pisa, Italy
| | - Daniel J. Murphy
- Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK; (B.K.); (D.J.M.)
- Cancer Research UK Beatson Institute, Glasgow G61 1BD, UK
| | - Daniela Sanchez Bassères
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo, Brazil; (F.S.R.); (V.S.M.); (T.C.C.-L.); (L.C.S.)
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Fouani L, Kovacevic Z, Richardson DR. Targeting Oncogenic Nuclear Factor Kappa B Signaling with Redox-Active Agents for Cancer Treatment. Antioxid Redox Signal 2019; 30:1096-1123. [PMID: 29161883 DOI: 10.1089/ars.2017.7387] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
SIGNIFICANCE Nuclear factor kappa B (NF-κB) signaling is essential under physiologically relevant conditions. However, aberrant activation of this pathway plays a pertinent role in tumorigenesis and contributes to resistance. Recent Advances: The importance of the NF-κB pathway means that its targeting must be specific to avoid side effects. For many currently used therapeutics and those under development, the ability to generate reactive oxygen species (ROS) is a promising strategy. CRITICAL ISSUES As cancer cells exhibit greater ROS levels than their normal counterparts, they are more sensitive to additional ROS, which may be a potential therapeutic niche. It is known that ROS are involved in (i) the activation of NF-κB signaling, when in sublethal amounts; and (ii) high levels induce cytotoxicity resulting in apoptosis. Indeed, ROS-induced cytotoxicity is valuable for its capabilities in killing cancer cells, but establishing the potency of ROS for effective inhibition of NF-κB signaling is necessary. Indeed, some cancer treatments, currently used, activate NF-κB and may stimulate oncogenesis and confer resistance. FUTURE DIRECTIONS Thus, combinatorial approaches using ROS-generating agents alongside conventional therapeutics may prove an effective tactic to reduce NF-κB activity to kill cancer cells. One strategy is the use of thiosemicarbazones, which form redox-active metal complexes that generate high ROS levels to deliver potent antitumor activity. These agents also upregulate the metastasis suppressor, N-myc downstream regulated gene 1 (NDRG1), which functions as an NF-κB signaling inhibitor. It is proposed that targeting NF-κB signaling may proffer a new therapeutic niche to improve the efficacy of anticancer regimens.
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Affiliation(s)
- Leyla Fouani
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, Australia
| | - Zaklina Kovacevic
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, Australia
| | - Des R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, Australia
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Li W, Zhu D, Qin S. SIRT7 suppresses the epithelial-to-mesenchymal transition in oral squamous cell carcinoma metastasis by promoting SMAD4 deacetylation. J Exp Clin Cancer Res 2018; 37:148. [PMID: 30001742 PMCID: PMC6044017 DOI: 10.1186/s13046-018-0819-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 06/28/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) is one of the most common malignancies and has a poor prognosis. The epithelial-to-mesenchymal transition (EMT) is crucial for increasing the metastasis of OSCC. Recently, studies have indicated that sirtuin7 (SIRT7) is implicated in tumor genesis; however, the potential role of SIRT7 in the EMT and metastasis of OSCC has not been reported. METHODS We investigated the cellular responses to SIRT7 silencing or overexpression in OSCC cell lines by wound healing assay, migration and invasion assay, western blotting, immunofluorescence and immunohistochemistry. RESULTS In the present study, we found that SIRT7 was significantly downregulated in OSCC cell lines and human OSCC/OSCC tissues with lymph node metastasis. Overexpression of SIRT7 decreased the proliferation and invasion of OSCC cells in vitro, whereas SIRT7 knockdown significantly increased OSCC cell growth and invasion. Upregulation of SIRT7 concomitantly increased the expression of E-cadherin, and decreased the expression of mesenchymal markers. SIRT7 overexpression also reduced the level of acetylated SMAD4 in OSCC cells. Moreover, SIRT7 overexpression significantly inhibited OSCC lung metastasis in vivo. CONCLUSION Together, these findings suggested that SIRT7 suppressed EMT in OSCC metastasis by promoting SMAD4 deacetylation.
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Affiliation(s)
- Wenlu Li
- Department of Stomatology, The First affiliated hospital of Zhengzhou University, 1# East Jianshe Road 1, Zhengzhou, 450000 Henan China
| | - Dandan Zhu
- Department of Stomatology, The First affiliated hospital of Zhengzhou University, 1# East Jianshe Road 1, Zhengzhou, 450000 Henan China
| | - Shuaihua Qin
- Department of Stomatology, The First affiliated hospital of Zhengzhou University, 1# East Jianshe Road 1, Zhengzhou, 450000 Henan China
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Di Domenico M, Giordano A. Signal transduction growth factors: the effective governance of transcription and cellular adhesion in cancer invasion. Oncotarget 2018; 8:36869-36884. [PMID: 28415812 PMCID: PMC5482705 DOI: 10.18632/oncotarget.16300] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 03/01/2017] [Indexed: 12/15/2022] Open
Abstract
Giulio Bizzozero classified the tissues concerning their capacity to self-renew during the adult life in labile, stable and permanent tissues. In 1940 Viktor Hamburger and Rita Levi Montalcini exposed the possibility to induce the growth of permanent cells thanks to a specific ligand Nerve Growth Factor (NGF). Stanley Cohen purified a protein the Epidermal Growth Factor (EGF), able to induce epidermis proliferation and to elicit precocious eye disclosure and teeth eruption, establishing the “inverse” relationships between the proliferation and differentiation. These two biological effects induced by EGF were according to EGFR signaling is involved in a large array of cellular functions such as proliferation, survival, adhesion, migration and differentiation. This review is focused on the key role of growth factors signaling and their downstream effectors in physiological and in pathological phenomena, the authors highlight the governance of Growth factors during the EMT in cancer invasion.
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Affiliation(s)
- Marina Di Domenico
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Italy.,IRCCS Institute of Women's Health Malzoni Clinic, Avellino, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, Temple University, Philadelphia, PA, USA
| | - Antonio Giordano
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, Temple University, Philadelphia, PA, USA
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Dawoody Nejad L, Biglari A, Annese T, Ribatti D. Recombinant fibromodulin and decorin effects on NF-κB and TGFβ1 in the 4T1 breast cancer cell line. Oncol Lett 2017; 13:4475-4480. [PMID: 28599447 DOI: 10.3892/ol.2017.5960] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 02/03/2017] [Indexed: 01/11/2023] Open
Abstract
Constitutive activation of nuclear factor-κB (NF-κB) stimulates cell proliferation and metastasis, and inhibits apoptosis in breast cancer. Transforming growth factor-β (TGF-β) signaling pathway is deregulated in breast cancer progression and metastasis. The aim of the present study was to investigate the inhibitory effects of the two small leucine rich proteoglycans fibromodulin (Fmod) and decorin (Dcn), overexpressed using adenovirus gene transfer, on NF-κB-activity and TGF-β1-expression in the highly metastatic 4T1 breast cancer cell line. The results demonstrate that Fmod and Dcn overexpression is associated with NF-κB and TGF-β1 downregulation, and that Fmod promotes this effect more effectively compared with Dcn.
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Affiliation(s)
- Ladan Dawoody Nejad
- Department of Molecular Medicine and Biochemistry Institute, University of Bern, 3012 Bern, Switzerland.,Department of Molecular Medicine and Genetics, Zanjan University of Medical Sciences, 45154 Zanjan, Iran
| | - Alireza Biglari
- Department of Cancer Gene Therapy Research Center, Zanjan University of Medical Sciences, 45154 Zanjan, Iran
| | - Tiziana Annese
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, Section of Human Anatomy and Histology, University of Bari Medical School, I-70124 Bari, Italy
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, Section of Human Anatomy and Histology, University of Bari Medical School, I-70124 Bari, Italy.,National Cancer Institute Giovanni Paolo II, I-70126 Bari, Italy
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8
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Rudisch A, Dewhurst MR, Horga LG, Kramer N, Harrer N, Dong M, van der Kuip H, Wernitznig A, Bernthaler A, Dolznig H, Sommergruber W. High EMT Signature Score of Invasive Non-Small Cell Lung Cancer (NSCLC) Cells Correlates with NFκB Driven Colony-Stimulating Factor 2 (CSF2/GM-CSF) Secretion by Neighboring Stromal Fibroblasts. PLoS One 2015; 10:e0124283. [PMID: 25919140 PMCID: PMC4412534 DOI: 10.1371/journal.pone.0124283] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 03/12/2015] [Indexed: 12/23/2022] Open
Abstract
We established co-cultures of invasive or non-invasive NSCLC cell lines and various types of fibroblasts (FBs) to more precisely characterize the molecular mechanism of tumor-stroma crosstalk in lung cancer. The HGF-MET-ERK1/2-CREB-axis was shown to contribute to the onset of the invasive phenotype of Calu-1 with HGF being secreted by FBs. Differential expression analysis of the respective mono- and co-cultures revealed an upregulation of NFκB-related genes exclusively in co-cultures with Calu-1. Cytokine Array- and ELISA-based characterization of the “cytokine fingerprints” identified CSF2 (GM-CSF), CXCL1, CXCL6, VEGF, IL6, RANTES and IL8 as being specifically upregulated in various co-cultures. Whilst CXCL6 exhibited a strictly FB-type-specific induction profile regardless of the invasiveness of the tumor cell line, CSF2 was only induced in co-cultures of invasive cell lines regardless of the partnered FB type. These cultures revealed a clear link between the induction of CSF2 and the EMT signature of the cancer cell line. The canonical NFκB signaling in FBs, but not in tumor cells, was shown to be responsible for the induced and constitutive CSF2 expression. In addition to CSF2, cytokine IL6, IL8 and IL1B, and chemokine CXCL1 and CXCL6 transcripts were also shown to be increased in co-cultured FBs. In contrast, their induction was not strictly dependent on the invasiveness of the co-cultured tumor cell. In a multi-reporter assay, additional signaling pathways (AP-1, HIF1-α, KLF4, SP-1 and ELK-1) were found to be induced in FBs co-cultured with Calu-1. Most importantly, no difference was observed in the level of inducibility of these six signaling pathways with regard to the type of FBs used. Finally, upon tumor fibroblast interaction the massive induction of chemokines such as CXCL1 and CXCL6 in FBs might be responsible for increased recruitment of a monocytic cell line (THP-1) in a transwell assay.
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MESH Headings
- Animals
- Cadherins/metabolism
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Cell Communication/drug effects
- Cell Line, Tumor
- Cytokines/metabolism
- Dermis/pathology
- Epithelial-Mesenchymal Transition/drug effects
- Epithelial-Mesenchymal Transition/genetics
- Fibroblasts/drug effects
- Fibroblasts/metabolism
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Regulatory Networks/drug effects
- Genes, Reporter
- Granulocyte-Macrophage Colony-Stimulating Factor/metabolism
- Hepatocyte Growth Factor/pharmacology
- Humans
- Inflammation/pathology
- Kruppel-Like Factor 4
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- NF-kappa B/metabolism
- Neoplasm Invasiveness
- Phenotype
- Proto-Oncogene Proteins c-met/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats
- Signal Transduction/drug effects
- Signal Transduction/genetics
- Spheroids, Cellular/drug effects
- Spheroids, Cellular/metabolism
- Spheroids, Cellular/pathology
- Stromal Cells/metabolism
- Up-Regulation/drug effects
- Up-Regulation/genetics
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Affiliation(s)
- Albin Rudisch
- Department of Lead Discovery, Boehringer Ingelheim RCV GmbH & Co KG, Vienna, Austria
- Department of Microbiology, Immunobiology and Genetics, Center of Molecular Biology, Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
| | | | | | - Nina Kramer
- Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
| | - Nathalie Harrer
- Department of Lead Discovery, Boehringer Ingelheim RCV GmbH & Co KG, Vienna, Austria
| | - Meng Dong
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology and University of Tübingen, Stuttgart, Baden-Württemberg, Germany
| | - Heiko van der Kuip
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology and University of Tübingen, Stuttgart, Baden-Württemberg, Germany
| | - Andreas Wernitznig
- Department of Lead Discovery, Boehringer Ingelheim RCV GmbH & Co KG, Vienna, Austria
| | - Andreas Bernthaler
- Department of Lead Discovery, Boehringer Ingelheim RCV GmbH & Co KG, Vienna, Austria
| | - Helmut Dolznig
- Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Sommergruber
- Department of Lead Discovery, Boehringer Ingelheim RCV GmbH & Co KG, Vienna, Austria
- * E-mail:
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Samatov TR, Tonevitsky AG, Schumacher U. Epithelial-mesenchymal transition: focus on metastatic cascade, alternative splicing, non-coding RNAs and modulating compounds. Mol Cancer 2013; 12:107. [PMID: 24053443 PMCID: PMC3848796 DOI: 10.1186/1476-4598-12-107] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 09/16/2013] [Indexed: 12/18/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) is a key process in embryonic development and metastases formation during malignant progression. This review focuses on transcriptional regulation, non-coding RNAs, alternative splicing events and cell adhesion molecules regulation during EMT. Additionally, we summarize the knowledge with regard to the small potentially druggable molecules capable of modulating EMT for cancer therapy.
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Affiliation(s)
- Timur R Samatov
- SRC Bioclinicum, Ugreshskaya str 2/85, Moscow 115088, Russia.
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10
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Zhang Y, Davis C, Ryan J, Janney C, Peña MMO. Development and characterization of a reliable mouse model of colorectal cancer metastasis to the liver. Clin Exp Metastasis 2013; 30:903-18. [PMID: 23748471 DOI: 10.1007/s10585-013-9591-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 05/23/2013] [Indexed: 12/11/2022]
Abstract
Colorectal cancer (CRC) is the third most frequent cancer and the third leading cause of cancer deaths in the United States (American Cancer Society, Cancer facts and figures 2012, 20121). The major cause of death is metastasis and frequently, the target organ is the liver. Successful metastasis depends on acquired properties in cancer cells that promote invasion and migration, and on multiple interactions between tumors and host-derived cells in the microenvironment. These processes, however, occur asymptomatically, thus, metastasis remains poorly understood and often diagnosed only at the final stage. To facilitate the elucidation of the mechanisms underlying these processes and to identify the molecular regulators, particularly at the early stages, we developed a mouse model of hepatic metastasis of CRC by cecal implantation of a mouse adenocarcinoma cell line in an immune competent host that reliably recapitulates all steps of tumor growth and metastasis within a defined period. By in vivo selection, we isolated cells of varying metastatic potential. The most highly metastatic CT26-FL3 cells produced liver metastasis as early as 10 days after implantation in 90 % of host mice. These cells expressed elevated levels of genes whose products promote invasion, migration, and mobilization of bone marrow derived cells (BMDCs). Mice bearing tumors from CT26-FL3 had elevated serum levels of OPN, MMP9, S100A8, S100A9, SAA3, and VEGFA that promote invasion and BMDC mobilization, and showed enhanced BMDC recruitment to the liver where they established a pre-metastatic niche. This model provides an important platform to characterize metastatic cells and elucidate tumor-host interactions and mechanisms that drive liver metastasis of CRC.
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Affiliation(s)
- Yu Zhang
- Department of Biological Sciences, University of South Carolina, Columbia, SC, 29208, USA
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Uitdehaag JCM, Verkaar F, Alwan H, de Man J, Buijsman RC, Zaman GJR. A guide to picking the most selective kinase inhibitor tool compounds for pharmacological validation of drug targets. Br J Pharmacol 2012; 166:858-76. [PMID: 22250956 DOI: 10.1111/j.1476-5381.2012.01859.x] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
To establish the druggability of a target, genetic validation needs to be supplemented with pharmacological validation. Pharmacological studies, especially in the kinase field, are hampered by the fact that many reference inhibitors are not fully selective for one target. Fortunately, the initial trickle of selective inhibitors released in the public domain has steadily swelled into a stream. However, rationally picking the most selective tool compound out of the increasing amounts of available inhibitors has become progressively difficult due to the lack of accurate quantitative descriptors of drug selectivity. A recently published approach, termed 'selectivity entropy', is an improved way of expressing selectivity as a single-value parameter and enables rank ordering of inhibitors. We provide a guide to select the best tool compounds for pharmacological validation experiments of candidate drug targets using selectivity entropy. In addition, we recommend which inhibitors to use for studying the biology of the 20 most investigated kinases that are clinically relevant: Abl (ABL1), AKT1, ALK, Aurora A/B, CDKs, MET, CSF1R (FMS), EGFR, FLT3, ERBB2 (HER2), IKBKB (IKK2), JAK2/3, JNK1/2/3 (MAPK8/9/10), MEK1/2, PLK1, PI3Ks, p38α (MAPK14), BRAF, SRC and VEGFR2 (KDR).
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Braddock M. Cambridge Healthtech Institute's Third Annual Anti-inflammatories: Small Molecules Meeting, April 17 th– 18 th2012, San Diego, USA. Expert Opin Investig Drugs 2012. [DOI: 10.1517/13543784.2012.707194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Martin Braddock
- Global Medicines Development, AstraZeneca R&D, Mereside, Alderley Park, Macclesfield, SK10 4TG England, UK
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IκB kinase/nuclear factor κB-dependent insulin-like growth factor 2 (Igf2) expression regulates synapse formation and spine maturation via Igf2 receptor signaling. J Neurosci 2012; 32:5688-703. [PMID: 22514330 DOI: 10.1523/jneurosci.0111-12.2012] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alterations of learning and memory in mice with deregulated neuron-specific nuclear factor κB (NF-κB) activity support the idea that plastic changes of synaptic contacts may depend at least in part on IκB kinase (IKK)/NF-κB-related synapse-to-nucleus signaling. There is, however, little information on the molecular requirements and mechanisms regulating this IKK/NF-κB-dependent synapse development and remodeling. Here, we report that the NF-κB inducing IKK kinase complex is localized at the postsynaptic density (PSD) and activated under basal conditions in the adult mouse brain. Using different models of conditional genetic inactivation of IKK2 function in mouse principal neurons, we show that IKK/NF-κB signaling is critically involved in synapse formation and spine maturation in the adult brain. IKK/NF-κB blockade in the forebrain of mutant animals is associated with reduced levels of mature spines and postsynaptic proteins PSD95, SAP97, GluA1, AMPAR-mediated basal synaptic transmission and a spatial learning impairment. Synaptic deficits can be restored in adult animals within 1 week by IKK/NF-κB reactivation, indicating a highly dynamic IKK/NF-κB-dependent regulation process. We further identified the insulin-like growth factor 2 gene (Igf2) as a novel IKK/NF-κB target. Exogenous Igf2 was able to restore synapse density and promoted spine maturation in IKK/NF-κB signaling-deficient neurons within 24 h. This process depends on Igf2/Igf2R-mediated MEK/ERK activation. Our findings illustrate a fundamental role of IKK/NF-κB-Igf2-Igf2R signaling in synapse formation and maturation in adult mice, thus providing an intriguing link between the molecular actions of IKK/NF-κB in neurons and the memory enhancement factor Igf2.
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Epithelial-mesenchymal transition in pancreatic carcinoma. Cancers (Basel) 2010; 2:2058-83. [PMID: 24281218 PMCID: PMC3840444 DOI: 10.3390/cancers2042058] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Revised: 12/01/2010] [Accepted: 12/01/2010] [Indexed: 02/07/2023] Open
Abstract
Pancreatic carcinoma is the fourth-leading cause of cancer death and is characterized by early invasion and metastasis. The developmental program of epithelial-mesenchymal transition (EMT) is of potential importance for this rapid tumor progression. During EMT, tumor cells lose their epithelial characteristics and gain properties of mesenchymal cells, such as enhanced motility and invasive features. This review will discuss recent findings pertinent to EMT in pancreatic carcinoma. Evidence for and molecular characteristics of EMT in pancreatic carcinoma will be outlined, as well as the connection of EMT to related topics, e.g., cancer stem cells and drug resistance.
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Brandl M, Seidler B, Haller F, Adamski J, Schmid RM, Saur D, Schneider G. IKK(α) controls canonical TGF(ß)-SMAD signaling to regulate genes expressing SNAIL and SLUG during EMT in panc1 cells. J Cell Sci 2010; 123:4231-9. [PMID: 21081648 DOI: 10.1242/jcs.071100] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The epithelial to mesenchymal transition (EMT) is a crucial step in tumor progression, and the TGFβ-SMAD signaling pathway is an inductor of EMT in many tumor types. One hallmark of EMT is downregulation of the adherens junction protein E-cadherin, a process mediated by transcription factors such as the zinc fingers SNAIL and SLUG. Here, we report that the catalytic IκB kinase (IKK) subunit IKKα is necessary for the silencing of E-cadherin in a Panc1 cell model of TGFβ-SMAD-mediated EMT, independently of NFκB. IKKα regulates canonical TGFβ-SMAD signaling by interacting with SMAD3 and controlling SMAD complex formation on DNA. Furthermore, we demonstrate that the TGFβ-IKKα-SMAD signaling pathway induces transcription of the genes encoding SNAIL and SLUG. In addition, we demonstrate that IKKα also modulates canonical TGFβ-SMAD signaling in human MDA-MB231 breast cancer cells, arguing for a more general impact of IKKα on the control of TGFβ-SMAD signaling. Taken together, these findings indicate that IKKα contributes to the tumor-promoting function of the TGFβ-SMAD signaling pathway in particular cancers.
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Affiliation(s)
- Martina Brandl
- II. Medizinische Klinik, Technische Universität München, Ismaninger Strasse 22, 81675 München, Germany
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Maier HJ, Schmidt-Strassburger U, Huber MA, Wiedemann EM, Beug H, Wirth T. NF-kappaB promotes epithelial-mesenchymal transition, migration and invasion of pancreatic carcinoma cells. Cancer Lett 2010; 295:214-28. [PMID: 20350779 DOI: 10.1016/j.canlet.2010.03.003] [Citation(s) in RCA: 178] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Revised: 02/26/2010] [Accepted: 03/04/2010] [Indexed: 11/29/2022]
Abstract
The transcription factor NF-kappaB is constitutively active in pancreatic adenocarcinoma. Here we explore the contribution of NF-kappaB to the malignant phenotype of pancreatic cancer cells in addition to its anti-apoptotic role. Block of NF-kappaB signalling by non-destructible IkappaBalpha rendered cells resistant to TGF-beta-induced epithelial-mesenchymal transition (EMT). In contrast, NF-kappaB activation by TNF-alpha or expression of constitutively active IKK2 induced an EMT-phenotype with up-regulation of vimentin and ZEB1, and down-regulation of E-cadherin. EMT could also be induced in cells with defective TGF-beta signalling. Functional assays demonstrated reduced or strongly enhanced migration and invasion upon NF-kappaB inhibition or activation, respectively.
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Affiliation(s)
- Harald J Maier
- Institute of Physiological Chemistry, University of Ulm, Germany
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