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Diluvio G, Kelley TT, Lahiry M, Alvarez-Trotta A, Kolb EM, Shersher E, Astudillo L, Kovall RA, Schürer SC, Capobianco AJ. A novel chemical attack on Notch-mediated transcription by targeting the NACK ATPase. Mol Ther Oncolytics 2023; 28:307-320. [PMID: 36938545 PMCID: PMC10015116 DOI: 10.1016/j.omto.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 02/17/2023] [Indexed: 02/25/2023] Open
Abstract
Notch activation complex kinase (NACK) is a component of the Notch transcriptional machinery critical for the Notch-mediated tumorigenesis. However, the mechanism through which NACK regulates Notch-mediated transcription is not well understood. Here, we demonstrate that NACK binds and hydrolyzes ATP and that only ATP-bound NACK can bind to the Notch ternary complex (NTC). Considering this, we sought to identify inhibitors of this ATP-dependent function and, using computational pipelines, discovered the first small-molecule inhibitor of NACK, Z271-0326, that directly blocks the activity of Notch-mediated transcription and shows potent antineoplastic activity in PDX mouse models. In conclusion, we have discovered the first inhibitor that holds promise for the efficacious treatment of Notch-driven cancers by blocking the Notch activity downstream of the NTC.
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Affiliation(s)
- Giulia Diluvio
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Tanya T. Kelley
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Mohini Lahiry
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Annamil Alvarez-Trotta
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Ellen M. Kolb
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Elena Shersher
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Cancer Epigenetics Program, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Luisana Astudillo
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Rhett A. Kovall
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Stephan C. Schürer
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Corresponding author: Stephan C. Schürer, Miller School of Medicine, University of Miami, 1600 North West 10th Avenue, Miami, FL 33136, USA.
| | - Anthony J. Capobianco
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Corresponding author: Anthony J. Capobianco, Miller School of Medicine, University of Miami, 1600 North West 10th Avenue, Miami, FL 33136, USA.
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Safari F, Shafiee Nejad N, Aghaei Nejad A. The inhibition of Panc1 cancer cells invasion by hAMSCs secretome through suppression of tyrosine phosphorylation of SGK223 (at Y411 site), c-Src (at Y416, Y530 sites), AKT activity, and JAK1/Stat3 signaling. Med Oncol 2022; 39:28. [PMID: 35059869 DOI: 10.1007/s12032-022-01649-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 01/05/2022] [Indexed: 11/30/2022]
Abstract
SGK223 is a scaffolding protein involving in the oncogenic tyrosine kinase signaling. SGK223 was phosphorylated at Y411 by c-Src and in response to the Epidermal growth factor receptor (EGFR). Tyrosine phosphorylated SGK223 at Y411 enables to interact with CSK resulting up regulation of c-Src activity and promotion of the cell migration. Human amniotic mesenchymal stromal cells (hAMSCs) are a population of multipotent cells that it was considered to be as a potential platform in cancer therapy. Herein, we employed a co-culture system to clarify the effects of hAMSCs secretome through tyrosine phosphorylation of c-Src, SGK223, AKT activity, and JAK1/Stat3 signaling in Panc1 pancreatic cancer cells. By using the 0.4 μm pore sized transwell membranes, both cell lines were firstly co-cultured for 72 h. Next, c-Src activity (tyrosine phosphorylation levels at Y530 and Y416), tyrosine phosphorylation level of SGK223 (at Y411), AKT activity, and JAK1/Stat3 signaling in Panc1 cells after treatment with hAMSCs were evaluated. Our results showed that hAMSCs have the inhibitory effects on Panc1 pancreatic cancer cells invasion and it suggests that the suppression of c-Src activity, SGK223 expression, AKT activity, and JAK1/Stat3 signaling may be as critical targets in pancreatic cancer therapy.
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Affiliation(s)
- Fatemeh Safari
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran.
| | - Nasim Shafiee Nejad
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
| | - Azadeh Aghaei Nejad
- Department of Biology, University Campus 2, University of Guilan, Rasht, Iran
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Shersher E, Lahiry M, Alvarez-Trotta A, Diluvio G, Robbins DJ, Shiekhattar R, Capobianco AJ. NACK and INTEGRATOR act coordinately to activate Notch-mediated transcription in tumorigenesis. Cell Commun Signal 2021; 19:96. [PMID: 34551776 PMCID: PMC8456597 DOI: 10.1186/s12964-021-00776-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/14/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Notch signaling drives many aspects of neoplastic phenotype. Here, we report that the Integrator complex (INT) is a new component of the Notch transcriptional supercomplex. Together with Notch Activation Complex Kinase (NACK), INT activates Notch1 target genes by driving RNA polymerase II (RNAPII)-dependent transcription, leading to tumorigenesis. METHODS Size exclusion chromatography and CBF-1/RBPJ/Suppressor of Hairless/Lag-1 (CSL)-DNA affinity fast protein liquid chromatography (FPLC) was used to purify Notch/CSL-dependent complexes for liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis. Chromatin immunoprecipitation (ChIP) and quantitative polymerase chain reaction (qPCR) were performed to investigate transcriptional regulation of Notch target genes. Transfection of Notch Ternary Complex components into HEK293T cells was used as a recapitulation assay to study Notch-mediated transcriptional mechanisms. Gene knockdown was achieved via RNA interference and the effects of protein depletion on esophageal adenocarcinoma (EAC) proliferation were determined via a colony formation assay and murine xenografts. Western blotting was used to examine expression of INT subunits in EAC cells and evaluate apoptotic proteins upon INT subunit 11 knockdown (INTS11 KD). Gene KD effects were further explored via flow cytometry. RESULTS We identified the INT complex as part of the Notch transcriptional supercomplex. INT, together with NACK, activates Notch-mediated transcription. While NACK is required for the recruitment of RNAPII to a Notch-dependent promoter, the INT complex is essential for RNAPII phosphorylated at serine 5 (RNAPII-S5P), leading to transcriptional activation. Furthermore, INT subunits are overexpressed in EAC cells and INTS11 KD results in G2/M cell cycle arrest, apoptosis, and cell growth arrest in EAC. CONCLUSIONS This study identifies the INT complex as a novel co-factor in Notch-mediated transcription that together with NACK activates Notch target genes and leads to cancer cell proliferation. Video abstract.
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Affiliation(s)
- Elena Shersher
- Molecular Oncology Program, Division of Surgical Oncology, Dewitt Daughtry Family Department of Surgery, University of Miami, 1600 NW 10th Ave, Miami, FL, 33136, USA.,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.,Cancer Epigenetics Program, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Mohini Lahiry
- Molecular Oncology Program, Division of Surgical Oncology, Dewitt Daughtry Family Department of Surgery, University of Miami, 1600 NW 10th Ave, Miami, FL, 33136, USA.,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Annamil Alvarez-Trotta
- Molecular Oncology Program, Division of Surgical Oncology, Dewitt Daughtry Family Department of Surgery, University of Miami, 1600 NW 10th Ave, Miami, FL, 33136, USA.,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Giulia Diluvio
- Molecular Oncology Program, Division of Surgical Oncology, Dewitt Daughtry Family Department of Surgery, University of Miami, 1600 NW 10th Ave, Miami, FL, 33136, USA.,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - David J Robbins
- Molecular Oncology Program, Division of Surgical Oncology, Dewitt Daughtry Family Department of Surgery, University of Miami, 1600 NW 10th Ave, Miami, FL, 33136, USA.,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.,Division of Surgical Oncology, Dewitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Ramin Shiekhattar
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.,Cancer Epigenetics Program, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.,Department of Human Genetics, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Anthony J Capobianco
- Molecular Oncology Program, Division of Surgical Oncology, Dewitt Daughtry Family Department of Surgery, University of Miami, 1600 NW 10th Ave, Miami, FL, 33136, USA. .,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA. .,Division of Surgical Oncology, Dewitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.
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Rahmani Z, Safari F. Evaluating the in vitro therapeutic effects of human amniotic mesenchymal stromal cells on MiaPaca2 pancreatic cancer cells using 2D and 3D cell culture model. Tissue Cell 2020; 68:101479. [PMID: 33383360 DOI: 10.1016/j.tice.2020.101479] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/04/2020] [Accepted: 12/05/2020] [Indexed: 01/01/2023]
Abstract
Human amniotic mesenchymal stromal cells (hAMSCs) are considered as a population of multipotent cells. The molecular events associated with mesenchymal stromal cell (MSC)/tumor cell interactions should be studied to identify the role of MSCs on suppressing or inducing the key signaling pathways of tumor cells. Thus, designing therapeutic approaches is considered as important. In the present study, hAMSCs and MiaPaca2 cells were first cultured separately. In addition, both cell lines were co-cultured by using 0.4 μm pore sized transwell membranes in different times. Further, the RNA of the cells was extracted, and Bcl2, Bax, epidermal growth factor receptor (EGFR), c-Src, C-terminal Src Kinase (CSK), and SGK223 expression were analyzed through quantitative real time PCR. Furthermore, the total cell lysates of the cells were prepared and analyzed by using western blot. Based on the results, the expression of EGFR, c-Src, SGK223, and CSK in MiaPaca2 cells reduced after treating with hAMSCs. Notably, the cellular apoptosis of MiaPaca2 cells was induced in 2D cell culture system. Further, the anti-cancer activity of conditioned medium from hAMSCs was confirmed in a 3D cell culture model by using hanging drop technique. Finally, hAMSCs have inhibitory effects on pancreatic cancer cells and can be considered as a therapeutic way to suppress EGFR, c-Src, and SGK223, as the potent targets in cancer cell signaling.
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Affiliation(s)
- Zahra Rahmani
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
| | - Fatemeh Safari
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran.
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