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Fan K, Wang Y, Bian J, Sun Y, Dou J, Pan J, Yu Y. Study on the effects of rapamycin and the mTORC1/2 dual inhibitor OSI-027 on the metabolism of colon cancer cells based on UPLC-MS/MS metabolomics. Invest New Drugs 2024:10.1007/s10637-024-01438-y. [PMID: 38916794 DOI: 10.1007/s10637-024-01438-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 04/16/2024] [Indexed: 06/26/2024]
Abstract
mTORC1/2 dual inhibitors may be more effective than mTORC1 inhibitor rapamycin. However, their metabolic impacts on colon cancer cells remain unexplored. We conducted a comparative analysis of the anti-proliferative effects of rapamycin and the novel OSI-027 in colon cancer cells HCT-116, evaluating their metabolic influences through ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS/MS). Our results demonstrate that OSI-027 more effectively inhibits colon cancer cell proliferation than rapamycin. Additionally, we identified nearly 600 metabolites from the spectra, revealing significant differences in metabolic patterns between cells treated with OSI-027 and rapamycin. Through VIP value screening, we pinpointed crucial metabolites contributing to these distinctions. For inhibiting glycolysis and reducing glucose consumption, OSI-027 was likely to be more potent than rapamycin. For amino acids metabolism, although OSI-027 has a broad effect as rapamycin, their effects in degrees were not exactly the same. These findings address the knowledge gap regarding mTORC1/2 dual inhibitors and lay a foundation for their further development and research.
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Affiliation(s)
- Kai Fan
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, 1055 San Xiang Road, Suzhou City, 215004, Jiangsu, People's Republic of China
| | - Yueyuan Wang
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, 1055 San Xiang Road, Suzhou City, 215004, Jiangsu, People's Republic of China
| | - Jiangyujing Bian
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, 1055 San Xiang Road, Suzhou City, 215004, Jiangsu, People's Republic of China
- College of Pharmacy, Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Yewen Sun
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, 1055 San Xiang Road, Suzhou City, 215004, Jiangsu, People's Republic of China
- College of Pharmacy, Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Jiaqi Dou
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, 1055 San Xiang Road, Suzhou City, 215004, Jiangsu, People's Republic of China
| | - Jie Pan
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, 1055 San Xiang Road, Suzhou City, 215004, Jiangsu, People's Republic of China.
| | - Yunli Yu
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, 1055 San Xiang Road, Suzhou City, 215004, Jiangsu, People's Republic of China.
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2
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Hossain MA. Targeting the RAS upstream and downstream signaling pathway for Cancer treatment. Eur J Pharmacol 2024:176727. [PMID: 38866361 DOI: 10.1016/j.ejphar.2024.176727] [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: 03/08/2024] [Revised: 06/05/2024] [Accepted: 06/06/2024] [Indexed: 06/14/2024]
Abstract
Cancer often involves the overactivation of RAS/RAF/MEK/ERK (MAPK) and PI3K-Akt-mTOR pathways due to mutations in genes like RAS, RAF, PTEN, and PIK3CA. Various strategies are employed to address the overactivation of these pathways, among which targeted therapy emerges as a promising approach. Directly targeting specific proteins, leads to encouraging results in cancer treatment. For instance, RTK inhibitors such as imatinib and afatinib selectively target these receptors, hindering ligand binding and reducing signaling initiation. These inhibitors have shown potent efficacy against Non-Small Cell Lung Cancer. Other inhibitors, like lonafarnib targeting Farnesyltransferase and GGTI 2418 targeting geranylgeranyl Transferase, disrupt post-translational modifications of proteins. Additionally, inhibition of proteins like SOS, SH2 domain, and Ras demonstrate promising anti-tumor activity both in vivo and in vitro. Targeting downstream components with RAF inhibitors such as vemurafenib, dabrafenib, and sorafenib, along with MEK inhibitors like trametinib and binimetinib, has shown promising outcomes in treating cancers with BRAF-V600E mutations, including myeloma, colorectal, and thyroid cancers. Furthermore, inhibitors of PI3K (e.g., apitolisib, copanlisib), AKT (e.g., ipatasertib, perifosine), and mTOR (e.g., sirolimus, temsirolimus) exhibit promising efficacy against various cancers such as Invasive Breast Cancer, Lymphoma, Neoplasms, and hematological malignancies. This review offers an overview of small molecule inhibitors targeting specific proteins within the RAS upstream and downstream signaling pathways in cancer.
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Affiliation(s)
- Md Arafat Hossain
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh;.
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3
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De Wispelaere W, Annibali D, Tuyaerts S, Messiaen J, Antoranz A, Shankar G, Dubroja N, Herreros‐Pomares A, Baiden‐Amissah REM, Orban M, Delfini M, Berardi E, Van Brussel T, Schepers R, Philips G, Boeckx B, Baietti MF, Congedo L, HoWangYin KY, Bayon E, Van Rompuy A, Leucci E, Tabruyn SP, Bosisio F, Mazzone M, Lambrechts D, Amant F. PI3K/mTOR inhibition induces tumour microenvironment remodelling and sensitises pS6 high uterine leiomyosarcoma to PD-1 blockade. Clin Transl Med 2024; 14:e1655. [PMID: 38711203 PMCID: PMC11074386 DOI: 10.1002/ctm2.1655] [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: 10/16/2023] [Revised: 03/24/2024] [Accepted: 03/26/2024] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND Uterine leiomyosarcomas (uLMS) are aggressive tumours with poor prognosis and limited treatment options. Although immune checkpoint blockade (ICB) has proven effective in some 'challenging-to-treat' cancers, clinical trials showed that uLMS do not respond to ICB. Emerging evidence suggests that aberrant PI3K/mTOR signalling can drive resistance to ICB. We therefore explored the relevance of the PI3K/mTOR pathway for ICB treatment in uLMS and explored pharmacological inhibition of this pathway to sensitise these tumours to ICB. METHODS We performed an integrated multiomics analysis based on TCGA data to explore the correlation between PI3K/mTOR dysregulation and immune infiltration in 101 LMS. We assessed response to PI3K/mTOR inhibitors in immunodeficient and humanized uLMS patient-derived xenografts (PDXs) by evaluating tumour microenvironment modulation using multiplex immunofluorescence. We explored response to single-agent and a combination of PI3K/mTOR inhibitors with PD-1 blockade in humanized uLMS PDXs. We mapped intratumoural dynamics using single-cell RNA/TCR sequencing of serially collected biopsies. RESULTS PI3K/mTOR over-activation (pS6high) associated with lymphocyte depletion and wound healing immune landscapes in (u)LMS, suggesting it contributes to immune evasion. In contrast, PI3K/mTOR inhibition induced profound tumour microenvironment remodelling in an ICB-resistant humanized uLMS PDX model, fostering adaptive anti-tumour immune responses. Indeed, PI3K/mTOR inhibition induced macrophage repolarisation towards an anti-tumourigenic phenotype and increased antigen presentation on dendritic and tumour cells, but also promoted infiltration of PD-1+ T cells displaying an exhausted phenotype. When combined with anti-PD-1, PI3K/mTOR inhibition led to partial or complete tumour responses, whereas no response to single-agent anti-PD-1 was observed. Combination therapy reinvigorated exhausted T cells and induced clonal hyper-expansion of a cytotoxic CD8+ T-cell population supported by a CD4+ Th1 niche. CONCLUSIONS Our findings indicate that aberrant PI3K/mTOR pathway activation contributes to immune escape in uLMS and provides a rationale for combining PI3K/mTOR inhibition with ICB for the treatment of this patient population.
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Affiliation(s)
- Wout De Wispelaere
- Department of OncologyLaboratory of Gynecological OncologyUniversity of LeuvenLeuvenBelgium
- Department of Human GeneticsLaboratory for Translational GeneticsUniversity of LeuvenLeuvenBelgium
- Laboratory for Translational GeneticsCenter for Cancer Biology (CCB)Flemish Institute of Biotechnology (VIB)LeuvenBelgium
| | - Daniela Annibali
- Department of OncologyLaboratory of Gynecological OncologyUniversity of LeuvenLeuvenBelgium
- Department of Gynecological OncologyAntoni Van Leeuwenhoek – Netherlands Cancer InstituteAmsterdamThe Netherlands
| | - Sandra Tuyaerts
- Department of Medical OncologyLaboratory of Medical and Molecular Oncology (LMMO)Vrije Universiteit Brussel – UZ BrusselBrusselsBelgium
| | - Julie Messiaen
- Department of Imaging and PathologyTranslational Cell and Tissue ResearchUniversity of LeuvenLeuvenBelgium
- Department of PediatricsUniversity Hospitals LeuvenLeuvenBelgium
| | - Asier Antoranz
- Department of Imaging and PathologyTranslational Cell and Tissue ResearchUniversity of LeuvenLeuvenBelgium
| | - Gautam Shankar
- Department of Imaging and PathologyTranslational Cell and Tissue ResearchUniversity of LeuvenLeuvenBelgium
| | - Nikolina Dubroja
- Department of Imaging and PathologyTranslational Cell and Tissue ResearchUniversity of LeuvenLeuvenBelgium
| | - Alejandro Herreros‐Pomares
- Department of OncologyLaboratory of Gynecological OncologyUniversity of LeuvenLeuvenBelgium
- Department of BiotechnologyUniversitat Politècnica de ValenciaValenciaSpain
| | | | - Marie‐Pauline Orban
- Laboratory of Tumor Inflammation and AngiogenesisCenter for Cancer Biology (CCB)Flemish Institute of Biotechnology (VIB)LeuvenBelgium
- Department of OncologyLaboratory of Tumor Inflammation and AngiogenesisCenter for Cancer Biology (CCB)University of LeuvenLeuvenBelgium
| | - Marcello Delfini
- Laboratory of Tumor Inflammation and AngiogenesisCenter for Cancer Biology (CCB)Flemish Institute of Biotechnology (VIB)LeuvenBelgium
- Department of OncologyLaboratory of Tumor Inflammation and AngiogenesisCenter for Cancer Biology (CCB)University of LeuvenLeuvenBelgium
| | - Emanuele Berardi
- Department of Development and RegenerationLaboratory of Tissue EngineeringUniversity of LeuvenKortrijkBelgium
| | - Thomas Van Brussel
- Department of Human GeneticsLaboratory for Translational GeneticsUniversity of LeuvenLeuvenBelgium
- Laboratory for Translational GeneticsCenter for Cancer Biology (CCB)Flemish Institute of Biotechnology (VIB)LeuvenBelgium
| | - Rogier Schepers
- Department of Human GeneticsLaboratory for Translational GeneticsUniversity of LeuvenLeuvenBelgium
- Laboratory for Translational GeneticsCenter for Cancer Biology (CCB)Flemish Institute of Biotechnology (VIB)LeuvenBelgium
| | - Gino Philips
- Department of Human GeneticsLaboratory for Translational GeneticsUniversity of LeuvenLeuvenBelgium
- Laboratory for Translational GeneticsCenter for Cancer Biology (CCB)Flemish Institute of Biotechnology (VIB)LeuvenBelgium
| | - Bram Boeckx
- Department of Human GeneticsLaboratory for Translational GeneticsUniversity of LeuvenLeuvenBelgium
- Laboratory for Translational GeneticsCenter for Cancer Biology (CCB)Flemish Institute of Biotechnology (VIB)LeuvenBelgium
| | | | - Luigi Congedo
- Department of OncologyLaboratory of Gynecological OncologyUniversity of LeuvenLeuvenBelgium
| | | | | | | | - Eleonora Leucci
- TRACE, Department of OncologyUniversity of LeuvenLeuvenBelgium
| | | | - Francesca Bosisio
- Department of Imaging and PathologyTranslational Cell and Tissue ResearchUniversity of LeuvenLeuvenBelgium
| | - Massimiliano Mazzone
- Laboratory of Tumor Inflammation and AngiogenesisCenter for Cancer Biology (CCB)Flemish Institute of Biotechnology (VIB)LeuvenBelgium
- Department of OncologyLaboratory of Tumor Inflammation and AngiogenesisCenter for Cancer Biology (CCB)University of LeuvenLeuvenBelgium
| | - Diether Lambrechts
- Department of Human GeneticsLaboratory for Translational GeneticsUniversity of LeuvenLeuvenBelgium
- Laboratory for Translational GeneticsCenter for Cancer Biology (CCB)Flemish Institute of Biotechnology (VIB)LeuvenBelgium
| | - Frédéric Amant
- Department of OncologyLaboratory of Gynecological OncologyUniversity of LeuvenLeuvenBelgium
- Department of Gynecological OncologyAntoni Van Leeuwenhoek – Netherlands Cancer InstituteAmsterdamThe Netherlands
- Department of Obstetrics and GynecologyUniversity Hospitals LeuvenLeuvenBelgium
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4
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Davis SL, Messersmith WA, Purcell WT, Lam ET, Corr BR, Leal AD, Lieu CH, O’Bryant CL, Smoots SG, Dus ED, Jordan KR, Serkova NJ, Pitts TM, Diamond JR. A Phase Ib Expansion Cohort Evaluating Aurora A Kinase Inhibitor Alisertib and Dual TORC1/2 Inhibitor Sapanisertib in Patients with Advanced Solid Tumors. Cancers (Basel) 2024; 16:1456. [PMID: 38672538 PMCID: PMC11048245 DOI: 10.3390/cancers16081456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/09/2024] [Accepted: 03/31/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND This study further evaluated the safety and efficacy of the combination of alisertib and sapanisertib in an expansion cohort of patients, including a subset of patients with refractory pancreatic adenocarcinoma, with further evaluation of the pharmacodynamic characteristics of combination therapy. METHODS Twenty patients with refractory solid tumors and 11 patients with pancreatic adenocarcinoma were treated at the recommended phase 2 dose of alisertib and sapanisertib. Adverse events and disease response were assessed. Patients in the expansion cohort were treated with a 7-day lead-in of either alisertib or sapanisertib prior to combination therapy, with tumor tissue biopsy and serial functional imaging performed for correlative analysis. RESULTS Toxicity across treatment groups was overall similar to prior studies. One partial response to treatment was observed in a patient with ER positive breast cancer, and a patient with pancreatic cancer experienced prolonged stable disease. In an additional cohort of pancreatic cancer patients, treatment response was modest. Correlative analysis revealed variability in markers of apoptosis and immune cell infiltrate according to lead-in therapy and response. CONCLUSIONS Dual targeting of Aurora A kinase and mTOR resulted in marginal clinical benefit in a population of patients with refractory solid tumors, including pancreatic adenocarcinoma, though individual patients experienced significant response to therapy. Correlatives indicate apoptotic response and tumor immune cell infiltrate may affect clinical outcomes.
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Affiliation(s)
- S. Lindsey Davis
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Wells A. Messersmith
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - W. Thomas Purcell
- Division of Hematology and Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - Elaine T. Lam
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Bradley R. Corr
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Alexis D. Leal
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Christopher H. Lieu
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Cindy L. O’Bryant
- Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO 80045, USA
| | - Stephen G. Smoots
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Evan D. Dus
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Kimberly R. Jordan
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Natalie J. Serkova
- Department of Radiology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Todd M. Pitts
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Jennifer R. Diamond
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
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5
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Zhao G, Forn-Cuní G, Scheers M, Lindenbergh PP, Yin J, van Loosen Q, Passarini L, Chen L, Snaar-Jagalska BE. Simultaneous targeting of AMPK and mTOR is a novel therapeutic strategy against prostate cancer. Cancer Lett 2024; 587:216657. [PMID: 38336289 DOI: 10.1016/j.canlet.2024.216657] [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: 08/02/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/12/2024]
Abstract
Metastatic colonization by circulating cancer cells is a highly inefficient process. To colonize distant organs, disseminating cancer cells must overcome many obstacles in foreign microenvironments, and only a small fraction of them survives this process. How these disseminating cancer cells cope with stress and initiate metastatic process is not fully understood. In this study, we report that the metastatic onset of prostate cancer cells is associated with the dynamic conversion of metabolism signaling pathways governed by the energy sensors AMPK and mTOR. While in circulation in blood flow, the disseminating cancer cells display decreased mTOR and increased AMPK activities that protect them from stress-induced death. However, after metastatic onset, the mTOR-AMPK activities are reversed, enabling mTOR-dependent tumor growth. Suppression of this dynamic conversion by co-targeting of AMPK and mTOR signaling significantly suppresses prostate cancer cell and tumor organoid growth in vitro and experimental metastasis in vivo, suggesting that this can be a therapeutic approach against metastasizing prostate cancer.
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Affiliation(s)
- Gangyin Zhao
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, the Netherlands
| | - Gabriel Forn-Cuní
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, the Netherlands
| | - Marvin Scheers
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, the Netherlands
| | | | - Jie Yin
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, the Netherlands
| | - Quint van Loosen
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, the Netherlands
| | - Leonardo Passarini
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, the Netherlands
| | - Lanpeng Chen
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, the Netherlands; Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - B Ewa Snaar-Jagalska
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, the Netherlands.
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6
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Ihlamur M, Akgul B, Zengin Y, Korkut ŞV, Kelleci K, Abamor EŞ. The mTOR Signaling Pathway and mTOR Inhibitors in Cancer: Next-generation Inhibitors and Approaches. Curr Mol Med 2024; 24:478-494. [PMID: 37165594 DOI: 10.2174/1566524023666230509161645] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 05/12/2023]
Abstract
mTOR is a serine/threonine kinase that plays various roles in cell growth, proliferation, and metabolism. mTOR signaling in cancer becomes irregular. Therefore, drugs targeting mTOR have been developed. Although mTOR inhibitors rapamycin and rapamycin rapalogs (everolimus, rapamycin, temsirolimus, deforolimus, etc.) and new generation mTOR inhibitors (Rapalink, Dual PI3K/mTOR inhibitors, etc.) are used in cancer treatments, mTOR resistance mechanisms may inhibit the efficacy of these drugs. Therefore, new inhibition approaches are developed. Although these new inhibition approaches have not been widely investigated in cancer treatment, the use of nanoparticles has been evaluated as a new treatment option in a few types of cancer. This review outlines the functions of mTOR in the cancer process, its resistance mechanisms, and the efficiency of mTOR inhibitors in cancer treatment. Furthermore, it discusses the next-generation mTOR inhibitors and inhibition strategies created using nanoparticles. Since mTOR resistance mechanisms prevent the effects of mTOR inhibitors used in cancer treatments, new inhibition strategies should be developed. Inhibition approaches are created using nanoparticles, and one of them offers a promising treatment option with evidence supporting its effectiveness.
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Affiliation(s)
- Murat Ihlamur
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
- Department of Electronics and Automation, Biruni University, Istanbul, Turkey
| | - Busra Akgul
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
| | - Yağmur Zengin
- Biomedical Engineering Institute, Department of Biomedical Engineering, Bogazici University, Istanbul, Turkey
| | - Şenay Vural Korkut
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Yildiz Technical University, Istanbul, Turkey
| | - Kübra Kelleci
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
- Department of Medical Services and Techniques, Beykoz University, Istanbul, Turkey
| | - Emrah Şefik Abamor
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
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7
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Farmaki E, Nath A, Emond R, Karimi KL, Grolmusz VK, Cosgrove PA, Bild AH. ONC201/TIC10 enhances durability of mTOR inhibitor everolimus in metastatic ER+ breast cancer. eLife 2023; 12:e85898. [PMID: 37772709 PMCID: PMC10541180 DOI: 10.7554/elife.85898] [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: 12/30/2022] [Accepted: 08/17/2023] [Indexed: 09/30/2023] Open
Abstract
The mTOR inhibitor, everolimus, is an important clinical management component of metastatic ER+ breast cancer (BC). However, most patients develop resistance and progress on therapy, highlighting the need to discover strategies that increase mTOR inhibitor effectiveness. We developed ER+ BC cell lines, sensitive or resistant to everolimus, and discovered that combination treatment of ONC201/TIC10 with everolimus inhibited cell growth in 2D/3D in vitro studies. We confirmed increased therapeutic response in primary patient cells progressing on everolimus, supporting clinical relevance. We show that ONC201/TIC10 mechanism in metastatic ER+ BC cells involves oxidative phosphorylation inhibition and stress response activation. Transcriptomic analysis in everolimus resistant breast patient tumors and mitochondrial functional assays in resistant cell lines demonstrated increased mitochondrial respiration dependency, contributing to ONC201/TIC10 sensitivity. We propose that ONC201/TIC10 and modulation of mitochondrial function may provide an effective add-on therapy strategy for patients with metastatic ER+ BCs resistant to mTOR inhibitors.
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Affiliation(s)
- Elena Farmaki
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical CenterDuarteUnited States
| | - Aritro Nath
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical CenterDuarteUnited States
| | - Rena Emond
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical CenterDuarteUnited States
| | - Kimya L Karimi
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical CenterDuarteUnited States
| | - Vince K Grolmusz
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical CenterDuarteUnited States
| | - Patrick A Cosgrove
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical CenterDuarteUnited States
| | - Andrea H Bild
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical CenterDuarteUnited States
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8
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Reyes A, Mohanty A, Pharaon R, Massarelli E. Association between Immunosuppressive Therapy Utilized in the Treatment of Autoimmune Disease or Transplant and Cancer Progression. Biomedicines 2022; 11:biomedicines11010099. [PMID: 36672607 PMCID: PMC9856025 DOI: 10.3390/biomedicines11010099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 01/01/2023] Open
Abstract
Autoimmunity and cancer rates have both been on the rise in Western civilization prompting many to investigate the link between the two entities. This review will investigate the complex interactions between the activation and deactivation of the immune system and the development of malignancy. Additional focus will be placed on the main classes of immune inhibitor therapy utilized in transplant patients and in autoimmune disease including TNF-alpha, Calcineurin, mTOR, purine synthesis antagonists and IMPDH inhibitors.
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9
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McClellan K, Chen EY, Kardosh A, Lopez CD, Del Rivero J, Mallak N, Rocha FG, Koethe Y, Pommier R, Mittra E, Pegna GJ. Therapy Resistant Gastroenteropancreatic Neuroendocrine Tumors. Cancers (Basel) 2022; 14:4769. [PMID: 36230691 PMCID: PMC9563314 DOI: 10.3390/cancers14194769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/24/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are a heterogenous group of malignancies originating from neuroendocrine cells of the gastrointestinal tract, the incidence of which has been increasing for several decades. While there has been significant progress in the development of therapeutic options for patients with advanced or metastatic disease, these remain limited both in quantity and durability of benefit. This review examines the latest research elucidating the mechanisms of both up-front resistance and the eventual development of resistance to the primary systemic therapeutic options including somatostatin analogues, peptide receptor radionuclide therapy with lutetium Lu 177 dotatate, everolimus, sunitinib, and temozolomide-based chemotherapy. Further, potential strategies for overcoming these mechanisms of resistance are reviewed in addition to a comprehensive review of ongoing and planned clinical trials addressing this important challenge.
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Affiliation(s)
- Kristen McClellan
- School of Medicine, Oregon Health & Science University, Portland, OR 97239, USA
| | - Emerson Y. Chen
- Division of Hematology Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Adel Kardosh
- Division of Hematology Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Charles D. Lopez
- Division of Hematology Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Jaydira Del Rivero
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nadine Mallak
- Division of Molecular Imaging and Therapy, Oregon Health & Science University, Portland, OR 97239, USA
| | - Flavio G. Rocha
- Division of Surgical Oncology, Department of Surgery, Oregon Health & Science University, Portland, OR 97239, USA
| | - Yilun Koethe
- Dotter Department of Interventional Radiology, Oregon Health & Science University, Portland, OR 97239, USA
| | - Rodney Pommier
- Division of Surgical Oncology, Department of Surgery, Oregon Health & Science University, Portland, OR 97239, USA
| | - Erik Mittra
- Division of Molecular Imaging and Therapy, Oregon Health & Science University, Portland, OR 97239, USA
| | - Guillaume J. Pegna
- Division of Hematology Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
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10
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Ni Z, Xu S, Yu Z, Ye Z, Li R, Chen C, Yang J, Liu H, Zhou Z, Zhang X. Comparison of dual mTORC1/2 inhibitor AZD8055 and mTORC1 inhibitor rapamycin on the metabolism of breast cancer cells using proton nuclear magnetic resonance spectroscopy metabolomics. Invest New Drugs 2022; 40:1206-1215. [PMID: 36063263 DOI: 10.1007/s10637-022-01268-w] [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: 05/02/2022] [Accepted: 06/06/2022] [Indexed: 11/28/2022]
Abstract
Dual mTORC1/2 inhibitors may be more effective than mTORC1 inhibitor rapamycin. Nevertheless, their metabolic effects on breast cancer cells have not been reported. We compared the anti-proliferative capacity of rapamycin and a novel mTORC1/2 dual inhibitor (AZD8055) in two breast cancer cell lines (MDA-MB-231 and MDA-MB-453) and analyzed their metabolic effects using proton nuclear magnetic resonance (1H NMR) spectroscopy-based metabolomics. We found that AZD8055 more strongly inhibited breast cancer cell proliferation than rapamycin. The half-inhibitory concentration of AZD8055 in breast cancer cells was almost one-tenth that of rapamycin. We identified 22 and 23 metabolites from the 1H NMR spectra of MDA-MB-231 and MDA-MB-453 cells. The patterns of AZD8055- and rapamycin-treated breast cancer cells differed significantly; we then selected the metabolites that contributed to these differences. For inhibiting glycolysis and reducing glucose consumption, AZD8055 was likely to be more potent than rapamycin. For amino acids metabolism, although AZD8055 has a broad effect as rapamycin, their effects in degrees were not exactly the same. AZD8055 and rapamycin displayed cell-specific metabolic effects on breast cancer cells, a finding that deserves further study. These findings help fill the knowledge gap concerning dual mTORC1/2 inhibitors and provide a theoretical basis for their development.
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Affiliation(s)
- Zhitao Ni
- Clinical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shaolin Xu
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zheng Yu
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhongjiang Ye
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Rongqi Li
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chuang Chen
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jianhui Yang
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Huamin Liu
- College of Pharmacy, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Ziye Zhou
- Clinical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Xiuhua Zhang
- Clinical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
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11
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Wang Y, Fung NSK, Lam WC, Lo ACY. mTOR Signalling Pathway: A Potential Therapeutic Target for Ocular Neurodegenerative Diseases. Antioxidants (Basel) 2022; 11:antiox11071304. [PMID: 35883796 PMCID: PMC9311918 DOI: 10.3390/antiox11071304] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 02/04/2023] Open
Abstract
Recent advances in the research of the mammalian target of the rapamycin (mTOR) signalling pathway demonstrated that mTOR is a robust therapeutic target for ocular degenerative diseases, including age-related macular degeneration (AMD), diabetic retinopathy (DR), and glaucoma. Although the exact mechanisms of individual ocular degenerative diseases are unclear, they share several common pathological processes, increased and prolonged oxidative stress in particular, which leads to functional and morphological impairment in photoreceptors, retinal ganglion cells (RGCs), or retinal pigment epithelium (RPE). mTOR not only modulates oxidative stress but is also affected by reactive oxygen species (ROS) activation. It is essential to understand the complicated relationship between the mTOR pathway and oxidative stress before its application in the treatment of retinal degeneration. Indeed, the substantial role of mTOR-mediated autophagy in the pathogenies of ocular degenerative diseases should be noted. In reviewing the latest studies, this article summarised the application of rapamycin, an mTOR signalling pathway inhibitor, in different retinal disease models, providing insight into the mechanism of rapamycin in the treatment of retinal neurodegeneration under oxidative stress. Besides basic research, this review also summarised and updated the results of the latest clinical trials of rapamycin in ocular neurodegenerative diseases. In combining the current basic and clinical research results, we provided a more complete picture of mTOR as a potential therapeutic target for ocular neurodegenerative diseases.
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12
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Duan S, Buxton ILO. Evolution of Medical Approaches and Prominent Therapies in Breast Cancer. Cancers (Basel) 2022; 14:2450. [PMID: 35626053 PMCID: PMC9140094 DOI: 10.3390/cancers14102450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 12/10/2022] Open
Abstract
An examination of the origins of medical approaches to breast cancer marks this disease as one of the most difficult to manage. As the early identification, diagnosis and treatment of breast cancer evolve, we will move to a time when each patient and their cancer can be assessed to determine unique patient-specific (personalized) approaches to therapy. Humans have attempted to manage breast cancer for millennia. Even today, the disease claims thousands of lives each year. In light of the increasingly sophisticated understanding of cancer diagnosis and treatment, together with our ultimate failure to offer a cure in the most difficult cases, it is instructive to reflect on the beginnings of our understanding.
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Affiliation(s)
- Suzann Duan
- Department of Pharmacology, University of Nevada, Reno School of Medicine, Reno, NV 89557, USA;
| | - Iain L. O. Buxton
- Department of Medicine, University of Arizona College of Medicine, Tucson, AZ 85724, USA
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13
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Abstract
Mechanistic target of rapamycin (mTOR) inhibitors are macrocyclic lactone antibiotics derived from Streptomyces hygroscopicus that prevent T lymphocyte activation and B cell differentiation. Unlike calcineurin inhibitors (CNIs) that inhibit cytokine production, mTOR inhibitors block the cytokine signal transduction to arrest cells in the G1 to S phase. This class of drugs is commonly used for post-transplantation and cancer management because of its immunosuppressive and antiproliferative properties, respectively. The potential uses of mTOR inhibitors are heavily explored because of their impact on cell growth and proliferation. However, mTOR inhibitors have a broad range of effects that can result in adverse reactions, but side effects can occur with other immunosuppressive agents as well. Thus, the performance of mTOR inhibitors is compared to the outcomes and adverse effects of other immunosuppressive drugs or the combination of other immunosuppressants and mTOR inhibitors. Because mTOR regulates many downstream pathways, mTOR inhibitors can affect these pathways to manage various diseases. Sirolimus (rapamycin) is approved by the Food and Drug Administration (FDA) to treat post-renal transplantation and lymphangioleiomyomatosis (LAM). Everolimus is approved by the FDA to treat postmenopausal advanced hormone receptor-positive, HER2-negative breast cancer in women, progressive neuroendocrine tumors of pancreatic origin (PNET), advanced renal cell carcinoma (RCC), renal angiomyolipoma (AML) and tuberous sclerosis complex (TSC), and subependymal giant cell astrocytoma (SEGA) associated with TSC as well as renal and liver transplantation. Temsirolimus is approved by the FDA to treat advanced RCC. Opportunities to use mTOR inhibitors as therapy for other transplantation, metabolic disease, and cancer management are being researched. mTOR inhibitors are often called proliferation signal inhibitors (PSIs) because of their effects on proliferation pathways.
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Affiliation(s)
- Denise Wang
- Mount Sinai Icahn School of Medicine, New York, NY, USA.
| | - Howard J Eisen
- Pennsylvania State University College of Medicine/Milton S. Hershey Medical Center, Hershey, PA, USA
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14
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Mangili F, Esposito E, Treppiedi D, Catalano R, Marra G, Di Muro G, Barbieri AM, Locatelli M, Lania AG, Mangone A, Spada A, Arosio M, Peverelli E, Mantovani G. DRD2 Agonist Cabergoline Abolished the Escape Mechanism Induced by mTOR Inhibitor Everolimus in Tumoral Pituitary Cells. Front Endocrinol (Lausanne) 2022; 13:867822. [PMID: 35721701 PMCID: PMC9204243 DOI: 10.3389/fendo.2022.867822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/04/2022] [Indexed: 11/13/2022] Open
Abstract
The mammalian target of rapamycin (mTOR) inhibitor everolimus has been shown to display antiproliferative effects on a wide spectrum of tumors. In vitro studies demonstrated that everolimus inhibited pituitary neuroendocrine tumor (PitNET) cell growth in a subset of patients. Sensitivity to everolimus is reduced by an escape mechanism that increases AKT phosphorylation (p-AKT), leading to pro-survival pathway activation. Dopamine receptor type 2 (DRD2) mediates a reduction of p-AKT in a subgroup of non-functioning PitNETs (NF-PitNETs) and in prolactin-secreting tumor cells (MMQ cells) through a β-arrestin 2-dependent mechanism. The aim of this study was to investigate the efficacy of everolimus combined with DRD2 agonist cabergoline in reducing NF-PitNET primary cells and MMQ cell proliferation and to evaluate AKT phosphorylation and a possible role of β-arrestin 2. We found that 9 out of 14 NF-PitNETs were resistant to everolimus, but the combined treatment with cabergoline inhibited cell proliferation in 7 out of 9 tumors (-31.4 ± 9.9%, p < 0.001 vs. basal) and reduced cyclin D3 expression. In the everolimus-unresponsive NF-PitNET group, everolimus determined a significant increase of p-AKT/total-AKT ratio (2.1-fold, p < 0.01, vs. basal) that was reverted by cabergoline cotreatment. To investigate the molecular mechanism involved, we used MMQ cells as a model of everolimus escape mechanism. Indeed everolimus did not affect MMQ cell proliferation and increased the p-AKT/total-AKT ratio (+1.53 ± 0.24-fold, p < 0.001 vs. basal), whereas cabergoline significantly reduced cell proliferation (-22.8 ± 6.8%, p < 0.001 vs. basal) and p-AKT. The combined treatment of everolimus and cabergoline induced a reduction of both cell proliferation (-34.8 ± 18%, p < 0.001 vs. basal and p < 0.05 vs. cabergoline alone) and p-AKT/total-AKT ratio (-34.5 ± 14%, p < 0.001 vs. basal and p < 0.05 vs. cabergoline alone). To test β-arrestin 2 involvement, silencing experiments were performed in MMQ cells. Our data showed that the lack of β-arrestin 2 prevented the everolimus and cabergoline cotreatment inhibitory effects on both p-AKT and cell proliferation. In conclusion, this study revealed that cabergoline might overcome the everolimus escape mechanism in NF-PitNETs and tumoral lactotrophs by inhibiting upstream AKT activation. The co-administration of cabergoline might improve mTOR inhibitor antitumoral activity, paving the way for a potential combined therapy in β-arrestin 2-expressing NF-PitNETs or other PitNETs resistant to conventional treatments.
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Affiliation(s)
- Federica Mangili
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Emanuela Esposito
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Donatella Treppiedi
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Rosa Catalano
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Giusy Marra
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Genesio Di Muro
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Anna Maria Barbieri
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Marco Locatelli
- Neurosurgery Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Andrea G. Lania
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
- Endocrinology and Diabetology Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| | - Alessandra Mangone
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Endocrinology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Anna Spada
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Maura Arosio
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Endocrinology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Erika Peverelli
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- *Correspondence: Erika Peverelli,
| | - Giovanna Mantovani
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Endocrinology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
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15
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Carbonic Anhydrase IX Inhibitors as Candidates for Combination Therapy of Solid Tumors. Int J Mol Sci 2021; 22:ijms222413405. [PMID: 34948200 PMCID: PMC8705727 DOI: 10.3390/ijms222413405] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 02/06/2023] Open
Abstract
Combination therapy is becoming imperative for the treatment of many cancers, as it provides a higher chance of avoiding drug resistance and tumor recurrence. Among the resistance-conferring factors, the tumor microenvironment plays a major role, and therefore, represents a viable target for adjuvant therapeutic agents. Thus, hypoxia and extracellular acidosis are known to select for the most aggressive and resilient phenotypes and build poorly responsive regions of the tumor mass. Carbonic anhydrase (CA, EC 4.2.1.1) IX isoform is a surficial zinc metalloenzyme that is proven to play a central role in regulating intra and extracellular pH, as well as modulating invasion and metastasis processes. With its strong association and distribution in various tumor tissues and well-known druggability, this protein holds great promise as a target to pharmacologically interfere with the tumor microenvironment by using drug combination regimens. In the present review, we summarized recent publications revealing the potential of CA IX inhibitors to intensify cancer chemotherapy and overcome drug resistance in preclinical settings.
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16
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Bernard S, Poon AC, Tam PM, Mutsaers AJ. Investigation of the effects of mTOR inhibitors rapamycin and everolimus in combination with carboplatin on canine malignant melanoma cells. BMC Vet Res 2021; 17:382. [PMID: 34895222 PMCID: PMC8665592 DOI: 10.1186/s12917-021-03089-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 11/23/2021] [Indexed: 01/22/2023] Open
Abstract
Background Malignant melanoma in dogs is considered to be largely resistant to conventional chemotherapy, although responses to carboplatin have been documented. Invasion and early metastasis are common features of certain melanoma subtypes that contribute to tumour progression despite aggressive local and systemic therapy. Upregulation of the PI3K/AKT/mTOR pathway has been observed in canine malignant melanoma and may represent a potential target for therapy. Rapamycin (sirolimus) and everolimus are commercially available small molecule inhibitors that target mTOR and therefore may have anticancer activity in canine melanoma. It was hypothesized that there is synergism between rapamycin or everolimus and platinum chemotherapy, and that combination drug treatment would inhibit target/downstream proteins involved in cell viability/proliferation and increase cell death in canine melanoma cells. It was further hypothesized that rapamycin or everolimus would impact metabolism by reducing glycolysis in these cells. Four canine melanoma cell lines were treated in vitro with rapamycin and everolimus as sole treatment or combined with carboplatin. Cell viability, apoptosis, target modulation, and glycolytic metabolism were evaluated by crystal violet colourimetric assay, Annexin V/PI flow cytometry, western blotting, and Seahorse bioanalyzer, respectively. Results When combined with carboplatin chemotherapy, rapamycin or everolimus treatment was overall synergistic in reducing cell viability. Carboplatin-induced apoptosis was noted at 72 h after treatment compared to the vehicle control. Levels of phosphorylated mTOR were reduced by rapamycin and everolimus in all four cell lines, but activation of the downstream protein p70S6K was not consistently reduced by treatment in two of the cell lines. Both mTOR inhibitors decreased the extracellular acidification rate of canine melanoma cells, indicating reduced cancer cell glycolytic activity. Conclusions Inhibition of mTOR by rapalogs, such as rapamycin and everolimus combined with carboplatin chemotherapy may have activity in canine melanoma. Future mechanistic investigation is warranted, including in vivo assessment of this combination therapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-021-03089-0.
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Affiliation(s)
- Sarah Bernard
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Andrew C Poon
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Peyton M Tam
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Anthony J Mutsaers
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada. .,Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.
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17
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Jolkinolide B sensitizes bladder cancer to mTOR inhibitors via dual inhibition of Akt signaling and autophagy. Cancer Lett 2021; 526:352-362. [PMID: 34798195 DOI: 10.1016/j.canlet.2021.11.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 12/28/2022]
Abstract
The monotherapy of mTOR inhibitors (mTORi) in cancer clinical practice has achieved limited success due to the concomitant activation of compensatory pathways, such as Akt signaling and cytoprotective autophagy. Thus, the combination of mTORi and the inhibitors of these pro-survival pathways has been considered a promising therapeutic strategy. Herein, we report the synergistic effects of a natural anti-cancer agent Jolkinolide B (JB) and mTORi (temsirolimus, rapamycin, and everolimus) for the effective treatment of bladder cancer. A mechanistic study revealed that JB induced a dual inhibition of Akt feedback activation and cytoprotective autophagy, potentiating the anti-proliferative efficacy of mTORi in both PTEN-deficient and cisplatin-resistant bladder cancer cells. Meanwhile, mTORi augmented the pro-apoptotic and pro-paraptotic effects of JB by reinforcing JB-activated endoplasmic reticulum stress and MAPK pathways. These synergistic mechanisms were related to cellular reactive oxygen species accumulation. Our study suggests that dual inhibition of Akt feedback activation and cytoprotective autophagy is an effective strategy in mTORi-based therapy, and JB + mTORi combination associated with multiple anti-cancer mechanisms and good tolerance in mouse models may serve as a promising treatment for bladder cancer.
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18
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Rashid MM, Lee H, Park J, Jung BH. Comparative metabolomics and lipidomics study to evaluate the metabolic differences between first- and second-generation mammalian or mechanistic target of rapamycin inhibitors. Biomed Chromatogr 2021; 35:e5190. [PMID: 34101862 DOI: 10.1002/bmc.5190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/30/2021] [Accepted: 06/04/2021] [Indexed: 12/29/2022]
Abstract
Mammalian or mechanistic target of rapamycin (mTOR) drives its fundamental cellular functions through two distinct catalytic subunits, mTORC1 and mTORC2, and is frequently dysregulated in most cancers. To treat cancers, developed mTOR inhibitors have been classified into first and second generations based on their ability to inhibit single (first-generation) and dual (second-generation) mTOR subunits. However, the underlying metabolic differences due to the effects of first- and second-generation mTOR inhibitors have not been clearly evaluated. In this study, rapamycin (sirolimus) and AZD8055 and PP242 were selected as first- and second-generation mTOR inhibitors, respectively, to evaluate the metabolic differences due to these two generations of mTOR inhibitors after a single oral dose using untargeted metabolomics and lipidomics approaches. The metabolic differences at each time point were compared using multivariate analysis. The multivariate and data analyses showed that metabolic disparity was more prominent within 8 h after drug administration and a broad class of metabolites were affected by the administration of both generations of mTOR inhibitors. Among the metabolite classes, changes in the pattern of fatty acids and glycerophospholipids were opposite, specifically at 4 and 8 h between the two generations of mTOR inhibitors. We speculate that the inhibition of the mTORC2 subunit by the second-generation mTOR inhibitor may have resulted in a distinct metabolic pattern between the first- and second-generation inhibitors. Finally, the findings of this study could assist in a more detailed understanding of the key metabolic differences caused by first- and second-generation mTOR inhibitors.
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Affiliation(s)
- Md Mamunur Rashid
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, South Korea.,Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology (UST), Seoul, South Korea
| | - Hyunbeom Lee
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, South Korea
| | - Jinyoung Park
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, South Korea
| | - Byung Hwa Jung
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, South Korea.,Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology (UST), Seoul, South Korea
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19
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Hussein NA, Malla S, Pasternak MA, Terrero D, Brown NG, Ashby CR, Assaraf YG, Chen ZS, Tiwari AK. The role of endolysosomal trafficking in anticancer drug resistance. Drug Resist Updat 2021; 57:100769. [PMID: 34217999 DOI: 10.1016/j.drup.2021.100769] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/10/2021] [Accepted: 05/14/2021] [Indexed: 02/08/2023]
Abstract
Multidrug resistance (MDR) remains a major obstacle towards curative treatment of cancer. Despite considerable progress in delineating the basis of intrinsic and acquired MDR, the underlying molecular mechanisms remain to be elucidated. Emerging evidences suggest that dysregulation in endolysosomal compartments is involved in mediating MDR through multiple mechanisms, such as alterations in endosomes, lysosomes and autophagosomes, that traffic and biodegrade the molecular cargo through macropinocytosis, autophagy and endocytosis. For example, altered lysosomal pH, in combination with transcription factor EB (TFEB)-mediated lysosomal biogenesis, increases the sequestration of hydrophobic anti-cancer drugs that are weak bases, thereby producing an insufficient and off-target accumulation of anti-cancer drugs in MDR cancer cells. Thus, the use of well-tolerated, alkalinizing compounds that selectively block Vacuolar H⁺-ATPase (V-ATPase) may be an important strategy to overcome MDR in cancer cells and increase chemotherapeutic efficacy. Other mechanisms of endolysosomal-mediated drug resistance include increases in the expression of lysosomal proteases and cathepsins that are involved in mediating carcinogenesis and chemoresistance. Therefore, blocking the trafficking and maturation of lysosomal proteases or direct inhibition of cathepsin activity in the cytosol may represent novel therapeutic modalities to overcome MDR. Furthermore, endolysosomal compartments involved in catabolic pathways, such as macropinocytosis and autophagy, are also shown to be involved in the development of MDR. Here, we review the role of endolysosomal trafficking in MDR development and discuss how targeting endolysosomal pathways could emerge as a new therapeutic strategy to overcome chemoresistance in cancer.
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Affiliation(s)
- Noor A Hussein
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, 43614, OH, USA
| | - Saloni Malla
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, 43614, OH, USA
| | - Mariah A Pasternak
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, 43614, OH, USA
| | - David Terrero
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, 43614, OH, USA
| | - Noah G Brown
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, 43614, OH, USA
| | - Charles R Ashby
- Department of Pharmaceutical Sciences, College of Pharmacy & Pharmaceutical Sciences, St. John's University, Queens, NY, USA
| | - Yehuda G Assaraf
- The Fred Wyszkowski Cancer Research Laboratory, Department of Biology, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Zhe-Sheng Chen
- Department of Pharmaceutical Sciences, College of Pharmacy & Pharmaceutical Sciences, St. John's University, Queens, NY, USA.
| | - Amit K Tiwari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, 43614, OH, USA; Department of Cancer Biology, College of Medicine and Life Sciences, University of Toledo, Toledo, 43614, OH, USA.
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20
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Miricescu D, Balan DG, Tulin A, Stiru O, Vacaroiu IA, Mihai DA, Popa CC, Papacocea RI, Enyedi M, Sorin NA, Vatachki G, Georgescu DE, Nica AE, Stefani C. PI3K/AKT/mTOR signalling pathway involvement in renal cell carcinoma pathogenesis (Review). Exp Ther Med 2021; 21:540. [PMID: 33815613 PMCID: PMC8014975 DOI: 10.3892/etm.2021.9972] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 01/15/2021] [Indexed: 12/14/2022] Open
Abstract
Renal cell carcinoma (RCC) accounts for over 90% of all renal malignancies, and mainly affects the male population. Obesity and smoking are involved in the pathogenesis of several systemic cancers including RCC. The phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signalling pathway regulates cell growth, differentiation, migration, survival, angiogenesis, and metabolism. Growth factors, hormones, cytokine and many extracellular cues activate PI3K/AKT/mTOR. Dysregulation of this molecular pathway is frequently reported in human cancers including RCC and is associated with aggressive development and poor survival rate. mTOR is the master regulator of cell metabolism and growth, and is activated in many pathological processes such as tumour formation, insulin resistance and angiogenesis. mTOR inhibitors are used at present as drug therapy for RCC to inhibit cell proliferation, growth, survival, and the cell cycle. Temsirolimus and everolimus are two mTOR inhibitors that are currently used for the treatment of RCC. Drugs targeting the PI3K/AKT/mTOR signalling pathway may be one of the best therapeutic options for RCC.
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Affiliation(s)
- Daniela Miricescu
- Department of Biochemistry, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Daniela Gabriela Balan
- Discipline of Physiology, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Adrian Tulin
- Department of Anatomy, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of General Surgery, ‘Prof. Dr. Agrippa Ionescu’ Clinical Emergency Hospital, 011356 Bucharest, Romania
| | - Ovidiu Stiru
- Department of Cardiovascular Surgery, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Cardiovascular Surgery, ‘Prof. Dr. C. C. Iliescu’ Emergency Institute for Cardiovascular Diseases, 022322 Bucharest, Romania
| | - Ileana Adela Vacaroiu
- Department of Nephrology and Dialysis, ‘Sf. Ioan’ Emergency Clinical Hospital, 042122 Bucharest, Romania
- Department of Nephrology, Nutrition and Metabolic Diseases, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Doina Andrada Mihai
- Discipline of Diabetes, Nutrition and Metabolic Diseases, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department II of Diabetes, ‘Prof. N. Paulescu’ Nutrition and Metabolic Diseases National Institute of Diabetes, 020474 Bucharest, Romania
| | - Cristian Constantin Popa
- Department of Surgery, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Surgery, Emergency University Hospital, 050098 Bucharest, Romania
| | - Raluca Ioana Papacocea
- Discipline of Physiology, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Mihaly Enyedi
- Department of Anatomy, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Radiology, ‘Victor Babes’ Private Medical Clinic, 030303 Bucharest, Romania
| | - Nedelea Andrei Sorin
- Division of Urology, ‘Prof. Dr. Agrippa Ionescu’ Clinical Emergency Hospital, 011356 Bucharest, Romania
| | - Guenadiy Vatachki
- Department of General Surgery, ‘Fundeni’ Clinical Institute 022328 Bucharest, Romania
| | - Dragoș Eugen Georgescu
- Department of Surgery, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Adriana Elena Nica
- Department of Orthopedics, Anesthesia Intensive Care Unit, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Constantin Stefani
- Department of Family Medicine and Clinical Base, Dr. Carol Davila Central Military Emergency University Hospital, 010825 Bucharest, Romania
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21
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Abstract
The past 30 years have borne witness to a gradual evolution in the treatment landscape of advanced renal cell carcinoma (aRCC). Early immunotherapy approaches such as interferon-α and high-dose interleukin-2 (IL-2) therapy in this immunogenic tumor provided durable responses in only a minority of patients and came with toxic side effects. A growing understanding of the tumor biology elucidated pathways of tumorigenesis, which in turn revealed novel targets amenable to targeted therapies. Inhibition of angiogenesis and cell signaling emerged as cornerstones of treatment with the approval of bevacizumab and several pan-kinase and tyrosine kinase inhibitors. Though effective, their use has been limited by low rates of durable response, resistance, and side effects. The immunotherapy revolution of the past decade has led to immunotherapy-based combination regimens such as ipilimumab plus nivolumab, pembrolizumab plus axitinib, and avelumab plus axitinib, displacing single agent anti-angiogenic therapy in the first-line setting by demonstrating durable responses and improved survival over sunitinib. These immunotherapy-based combinations define first-line standard of care for aRCC today. The pipeline of second-line agents for consideration in patients who have disease progression despite immunotherapy regimens is robust but still in early stages of development.
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Affiliation(s)
- Landon C Brown
- Division of Medical Oncology, Department of Medicine, Duke University, DUMC 103861, Durham, NC, 27710, USA
- Duke Cancer Institute Center for Prostate and Urologic Cancers, Durham, NC, USA
| | - Kunal Desai
- Department of Internal Medicine, Cleveland Clinic, 9500 Euclid Avenue, NA10, Cleveland, OH, 44195, USA
| | - Tian Zhang
- Division of Medical Oncology, Department of Medicine, Duke University, DUMC 103861, Durham, NC, 27710, USA
- Duke Cancer Institute Center for Prostate and Urologic Cancers, Durham, NC, USA
| | - Moshe C Ornstein
- Department of Hematology and Medical Oncology, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH, USA.
- Genitourinary Oncology, Cleveland Clinic Taussig Cancer Institute, 9500 Euclid Ave, CA-60, Cleveland, OH, 44195, USA.
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22
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Terracciano F, Capone A, Montori A, Rinzivillo M, Partelli S, Panzuto F, Pilozzi E, Arcidiacono PG, Sette C, Capurso G. MYC Upregulation Confers Resistance to Everolimus and Establishes Vulnerability to Cyclin-Dependent Kinase Inhibitors in Pancreatic Neuroendocrine Neoplasm Cells. Neuroendocrinology 2021; 111:739-751. [PMID: 32615570 DOI: 10.1159/000509865] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/01/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Dysregulation of the mechanistic target of rapamycin complex 1 (mTORC1)-dependent pathways in pancreatic neuroendocrine neoplasms (PanNENs) underlies the introduction of the mTORC1 inhibitor everolimus as treatment of advanced progressive PanNENs. Although everolimus significantly increases progression-free survival, most patients acquire secondary resistance to the drug. This study aimed at identifying mechanisms involved in acquisition of resistance to everolimus. METHODS BON-1 and everolimus-resistant (ER) BON-1 cells were used as in vitro system of sensitivity and acquired resistance. Transcriptome changes occurring in BON-1 and ER-BON-1 were investigated by RNA sequencing and validated by quantitative PCR analysis. RNA extracted from patients' biopsies was used to validate MYC upregulation. Drug screening and functional assays were performed using ER-BON-1 cells. Cell cycle progression was evaluated by FACS analysis. RESULTS Our results show that MYC overexpression is a key event in the development of secondary resistance to everolimus in PanNEN cell lines and in metastatic lesions from neuroendocrine neoplasm patients. MYC knockdown restored ER-BON-1 sensitivity to everolimus. Pharmacological inhibition of MYC mediated by the cyclin-dependent kinase inhibitor dinaciclib strongly reduced viability of ER-BON-1. Dinaciclib synergized with everolimus and inhibited ER-BON-1 cell cycle progression. DISCUSSION Our findings suggest that MYC upregulation drives the development of secondary resistance to everolimus in PanNENs and that its inhibition is an exploitable vulnerability. Indeed, our results indicate that combined treatments with cyclin-dependent kinase and mTOR inhibitors may counteract secondary resistance to everolimus in PanNENs and may pave the ground for new therapeutic regimens for these tumors.
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Affiliation(s)
- Francesca Terracciano
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
- Laboratory of Neuroembryology, Fondazione Santa Lucia IRCCS, Rome, Italy
- PancreatoBiliary Endoscopy and EUS Division, Pancreas Translational and Clinical Research Center, San Raffaele Scientific Institute IRCCS, Vita Salute San Raffaele University, Milan, Italy
| | - Alessia Capone
- Laboratory of Neuroembryology, Fondazione Santa Lucia IRCCS, Rome, Italy
| | - Andrea Montori
- Department Of Clinical and Molecular Medicine, Sapienza University, Rome, Italy
| | - Maria Rinzivillo
- Digestive and Liver Disease Unit, S. Andrea Hospital, Rome, Italy
| | - Stefano Partelli
- Pancreatic Surgery Division, Pancreas Translational and Clinical Research Center, IRCCS San Raffaele Scientific Institute, Vita Salute San Raffaele University, Milan, Italy
| | | | - Emanuela Pilozzi
- Department Of Clinical and Molecular Medicine, Sapienza University, Rome, Italy
| | - Paolo Giorgio Arcidiacono
- PancreatoBiliary Endoscopy and EUS Division, Pancreas Translational and Clinical Research Center, San Raffaele Scientific Institute IRCCS, Vita Salute San Raffaele University, Milan, Italy
| | - Claudio Sette
- Laboratory of Neuroembryology, Fondazione Santa Lucia IRCCS, Rome, Italy
- Section of Human Anatomy, Department of Neuroscience, Catholic University of the Sacred Heart, Rome, Italy
| | - Gabriele Capurso
- PancreatoBiliary Endoscopy and EUS Division, Pancreas Translational and Clinical Research Center, San Raffaele Scientific Institute IRCCS, Vita Salute San Raffaele University, Milan, Italy,
- Digestive and Liver Disease Unit, S. Andrea Hospital, Rome, Italy,
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23
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Sakamoto H, Yamasaki T, Sumiyoshi T, Takeda M, Shibasaki N, Utsunomiya N, Arakaki R, Akamatsu S, Kobayashi T, Inoue T, Kamba T, Nakamura E, Ogawa O. Functional and genomic characterization of patient-derived xenograft model to study the adaptation to mTORC1 inhibitor in clear cell renal cell carcinoma. Cancer Med 2021; 10:119-134. [PMID: 33107222 PMCID: PMC7826464 DOI: 10.1002/cam4.3578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/24/2020] [Accepted: 10/12/2020] [Indexed: 02/06/2023] Open
Abstract
Resistance to the mechanistic target of rapamycin (mTOR) inhibitors, which are a standard treatment for advanced clear cell renal cell carcinoma (ccRCC), eventually develops in most cases. In this study, we established a patient-derived xenograft (PDX) model which acquired resistance to the mTOR inhibitor temsirolimus, and explored the underlying mechanisms of resistance acquisition. Temsirolimus was administered to PDX model mice, and one cohort of PDX models acquired resistance after repeated passages. PDX tumors were genetically analyzed by whole-exome sequencing and detected several genetic alterations specific to resistant tumors. Among them, mutations in ANKRD12 and DNMT1 were already identified in the early passage of a resistant PDX model, and we focused on a DNMT1 mutation as a potential candidate for developing the resistant phenotype. While DNMT1 expression in temsirolimus-resistant tumors was comparable with the control tumors, DNMT enzyme activity was decreased in resistant tumors compared with controls. Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9-mediated heterozygous knockdown of DNMT1 in the temsirolimus-sensitive ccRCC (786-O) cell line was shown to result in a temsirolimus-resistant phenotype in vitro and in vivo. Integrated gene profiles using methylation and microarray analyses of PDX tumors suggested a global shift for the hypomethylation status including promotor regions, and showed the upregulation of several molecules that regulate the mTOR pathway in temsirolimus-resistant tumors. Present study showed the feasibility of PDX model to explore the mechanisms of mTOR resistance acquisition and suggested that genetic alterations, including that of DNMT1, which alter the methylation status in cancer cells, are one of the potential mechanisms of developing resistance to temsirolimus.
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Affiliation(s)
- Hiromasa Sakamoto
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Toshinari Yamasaki
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Takayuki Sumiyoshi
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Masashi Takeda
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Noboru Shibasaki
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Noriaki Utsunomiya
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Ryuichiro Arakaki
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Shusuke Akamatsu
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Takashi Kobayashi
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Takahiro Inoue
- Department of Nephro‐Urologic Surgery and AndrologyMie University Graduate School of MedicineTsuJapan
| | - Tomomi Kamba
- Department of UrologyKumamoto University Graduate School of Medical SciencesKumamotoJapan
| | - Eijiro Nakamura
- DSK Project, Medical Innovation CenterKyoto University Graduate School of MedicineKyotoJapan
| | - Osamu Ogawa
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
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24
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Garrido MP, Salvatierra R, Valenzuela-Valderrama M, Vallejos C, Bruneau N, Hernández A, Vega M, Selman A, Quest AFG, Romero C. Metformin Reduces NGF-Induced Tumour Promoter Effects in Epithelial Ovarian Cancer Cells. Pharmaceuticals (Basel) 2020; 13:E315. [PMID: 33081077 PMCID: PMC7602813 DOI: 10.3390/ph13100315] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/22/2020] [Accepted: 09/24/2020] [Indexed: 12/13/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is a lethal gynaecological neoplasm characterized by rapid growth and angiogenesis. Nerve growth factor (NGF) and its high affinity receptor tropomyosin receptor kinase A (TRKA) contribute to EOC progression by increasing the expression of c-MYC, survivin and vascular endothelial growth factor (VEGF) along with a decrease in microRNAs (miR) 23b and 145. We previously reported that metformin prevents NGF-induced proliferation and angiogenic potential of EOC cells. In this study, we sought to obtain a better understanding of the mechanism(s) by which metformin blocks these NGF-induced effects in EOC cells. Human ovarian surface epithelial (HOSE) and EOC (A2780/SKOV3) cells were stimulated with NGF and/or metformin to assess the expression of c-MYC, β-catenin, survivin and VEGF and the abundance of the tumor suppressor miRs 23b and 145. Metformin decreased the NGF-induced transcriptional activity of MYC and β-catenin/T-cell factor/lymphoid enhancer-binding factor (TCF-Lef), as well as the expression of c-MYC, survivin and VEGF in EOC cells, while it increased miR-23b and miR-145 levels. The preliminary analysis of ovarian biopsies from women users or non-users of metformin was consistent with these in vitro results. Our observations shed light on the mechanisms by which metformin may suppress tumour growth in EOC and suggest that metformin should be considered as a possible complementary therapy in EOC treatment.
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Affiliation(s)
- Maritza P. Garrido
- Laboratorio de Endocrinología y Biología de la Reproducción, Hospital Clínico Universidad de Chile, Santiago 8380456, Chile; (M.P.G.); (R.S.); (C.V.); (N.B.); (A.H.); (M.V.)
- Departamento de Obstetricia y Ginecología, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile;
| | - Renato Salvatierra
- Laboratorio de Endocrinología y Biología de la Reproducción, Hospital Clínico Universidad de Chile, Santiago 8380456, Chile; (M.P.G.); (R.S.); (C.V.); (N.B.); (A.H.); (M.V.)
| | - Manuel Valenzuela-Valderrama
- Laboratorio de Microbiología Celular, Instituto de Investigación e Innovación en Salud, Facultad de Ciencias de la Salud, Universidad Central de Chile, Santiago 8320000, Chile;
| | - Christopher Vallejos
- Laboratorio de Endocrinología y Biología de la Reproducción, Hospital Clínico Universidad de Chile, Santiago 8380456, Chile; (M.P.G.); (R.S.); (C.V.); (N.B.); (A.H.); (M.V.)
| | - Nicole Bruneau
- Laboratorio de Endocrinología y Biología de la Reproducción, Hospital Clínico Universidad de Chile, Santiago 8380456, Chile; (M.P.G.); (R.S.); (C.V.); (N.B.); (A.H.); (M.V.)
| | - Andrea Hernández
- Laboratorio de Endocrinología y Biología de la Reproducción, Hospital Clínico Universidad de Chile, Santiago 8380456, Chile; (M.P.G.); (R.S.); (C.V.); (N.B.); (A.H.); (M.V.)
| | - Margarita Vega
- Laboratorio de Endocrinología y Biología de la Reproducción, Hospital Clínico Universidad de Chile, Santiago 8380456, Chile; (M.P.G.); (R.S.); (C.V.); (N.B.); (A.H.); (M.V.)
- Departamento de Obstetricia y Ginecología, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile;
| | - Alberto Selman
- Departamento de Obstetricia y Ginecología, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile;
- Instituto Nacional del Cáncer, Santiago 8380455, Chile
| | - Andrew F. G. Quest
- Laboratorio de Comunicaciones Celulares, Centro de estudios en Ejercicio, Metabolismo y Cáncer (CEMC), Programa de Biología Celular y Molecular, Instituto de Ciencias Biomédicas (ICBM), Facultad De Medicina, Universidad de Chile, Santiago 8380453, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Santiago 8380000, Chile
| | - Carmen Romero
- Laboratorio de Endocrinología y Biología de la Reproducción, Hospital Clínico Universidad de Chile, Santiago 8380456, Chile; (M.P.G.); (R.S.); (C.V.); (N.B.); (A.H.); (M.V.)
- Departamento de Obstetricia y Ginecología, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile;
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25
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Kong N, Tao W, Ling X, Wang J, Xiao Y, Shi S, Ji X, Shajii A, Gan ST, Kim NY, Duda DG, Xie T, Farokhzad OC, Shi J. Synthetic mRNA nanoparticle-mediated restoration of p53 tumor suppressor sensitizes p53-deficient cancers to mTOR inhibition. Sci Transl Med 2020; 11:11/523/eaaw1565. [PMID: 31852795 DOI: 10.1126/scitranslmed.aaw1565] [Citation(s) in RCA: 149] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 08/23/2019] [Accepted: 11/20/2019] [Indexed: 12/22/2022]
Abstract
Loss of function in tumor suppressor genes is commonly associated with the onset/progression of cancer and treatment resistance. The p53 tumor suppressor gene, a master regulator of diverse cellular pathways, is frequently altered in various cancers, for example, in ~36% of hepatocellular carcinomas (HCCs) and ~68% of non-small cell lung cancers (NSCLCs). Current methods for restoration of p53 expression, including small molecules and DNA therapies, have yielded progressive success, but each has formidable drawbacks. Here, a redox-responsive nanoparticle (NP) platform is engineered for effective delivery of p53-encoding synthetic messenger RNA (mRNA). We demonstrate that the synthetic p53-mRNA NPs markedly delay the growth of p53-null HCC and NSCLC cells by inducing cell cycle arrest and apoptosis. We also reveal that p53 restoration markedly improves the sensitivity of these tumor cells to everolimus, a mammalian target of rapamycin (mTOR) inhibitor that failed to show clinical benefits in advanced HCC and NSCLC. Moreover, cotargeting of tumor-suppressing p53 and tumorigenic mTOR signaling pathways results in marked antitumor effects in vitro and in multiple animal models of HCC and NSCLC. Our findings indicate that restoration of tumor suppressors by the synthetic mRNA NP delivery strategy could be combined together with other therapies for potent combinatorial cancer treatment.
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Affiliation(s)
- Na Kong
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.,School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Wei Tao
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Xiang Ling
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Junqing Wang
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Yuling Xiao
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Sanjun Shi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Xiaoyuan Ji
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.,Department of Cancer Pharmacology, Holistic Integrative Pharmacy Institutes, College of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Aram Shajii
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Silvia Tian Gan
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.,Department of Biology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Na Yoon Kim
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Dan G Duda
- Steele Laboratories for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Tian Xie
- Department of Cancer Pharmacology, Holistic Integrative Pharmacy Institutes, College of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China.
| | - Omid C Farokhzad
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. .,King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Jinjun Shi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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26
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Zulkipli NN, Zakaria R, Long I, Abdullah SF, Muhammad EF, Wahab HA, Sasongko TH. In Silico Analyses and Cytotoxicity Study of Asiaticoside and Asiatic Acid from Malaysian Plant as Potential mTOR Inhibitors. Molecules 2020; 25:molecules25173991. [PMID: 32887218 PMCID: PMC7504803 DOI: 10.3390/molecules25173991] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023] Open
Abstract
Natural products remain a popular alternative treatment for many ailments in various countries. This study aimed to screen for potential mammalian target of rapamycin (mTOR) inhibitors from Malaysian natural substance, using the Natural Product Discovery database, and to determine the IC50 of the selected mTOR inhibitors against UMB1949 cell line. The crystallographic structure of the molecular target (mTOR) was obtained from Protein Data Bank, with Protein Data Bank (PDB) ID: 4DRI. Everolimus, an mTOR inhibitor, was used as a standard compound for the comparative analysis. Computational docking approach was performed, using AutoDock Vina (screening) and AutoDock 4.2.6 (analysis). Based on our analysis, asiaticoside and its derivative, asiatic acid, both from Centella asiatica, revealed optimum-binding affinities with mTOR that were comparable to our standard compound. The effect of asiaticoside and asiatic acid on mTOR inhibition was validated with UMB1949 cell line, and their IC50 values were 300 and 60 µM, respectively, compared to everolimus (29.5 µM). Interestingly, this is the first study of asiaticoside and asiatic acid against tuberous sclerosis complex (TSC) disease model by targeting mTOR. These results, coupled with our in silico findings, should prompt further studies, to clarify the mode of action, safety, and efficacy of these compounds as mTOR inhibitors.
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Affiliation(s)
- Ninie Nadia Zulkipli
- School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia;
| | - Rahimah Zakaria
- School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia;
- Correspondence: (R.Z.); (H.A.W.); Tel.: +60-9-7676156 (R.Z.)
| | - Idris Long
- School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia;
| | - Siti Fadilah Abdullah
- School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia;
| | - Erma Fatiha Muhammad
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia;
| | - Habibah A. Wahab
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia;
- Correspondence: (R.Z.); (H.A.W.); Tel.: +60-9-7676156 (R.Z.)
| | - Teguh Haryo Sasongko
- School of Medicine, Perdana University-RCSI, Jalan MAEPS Perdana, Serdang 43400, Malaysia;
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27
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Lu Y, Zhang EY, Liu J, Yu JJ. Inhibition of the mechanistic target of rapamycin induces cell survival via MAPK in tuberous sclerosis complex. Orphanet J Rare Dis 2020; 15:209. [PMID: 32807195 PMCID: PMC7433150 DOI: 10.1186/s13023-020-01490-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 08/05/2020] [Indexed: 01/29/2023] Open
Abstract
Background Tuberous sclerosis complex (TSC) is a genetic disorder that cause tumors to form in many organs. These lesions may lead to epilepsy, autism, developmental delay, renal, and pulmonary failure. Loss of function mutations in TSC1 and TSC2 genes by aberrant activation of the mechanistic target of rapamycin (mTORC1) signaling pathway are the known causes of TSC. Therefore, targeting mTORC1 becomes a most available therapeutic strategy for TSC. Although mTORC1 inhibitor rapamycin and Rapalogs have demonstrated exciting results in the recent clinical trials, however, tumors rebound and upon the discontinuation of the mTORC1 inhibition. Thus, understanding the underlying molecular mechanisms responsible for rapamycin-induced cell survival becomes an urgent need. Identification of additional molecular targets and development more effective remission-inducing therapeutic strategies are necessary for TSC patients. Results We have discovered an Mitogen-activated protein kinase (MAPK)-evoked positive feedback loop that dampens the efficacy of mTORC1 inhibition. Mechanistically, mTORC1 inhibition increased MEK1-dependent activation of MAPK in TSC-deficient cells. Pharmacological inhibition of MAPK abrogated this feedback loop activation. Importantly, the combinatorial inhibition of mTORC1 and MAPK induces the death of TSC2-deficient cells. Conclusions Our results provide a rationale for dual targeting of mTORC1 and MAPK pathways in TSC and other mTORC1 hyperactive neoplasm.
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Affiliation(s)
- Yiyang Lu
- Department of Internal Medicine, Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, 231 Albert Sabin Way-ML 0564, Cincinnati, OH, 45267, USA
| | - Erik Y Zhang
- Department of Internal Medicine, Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, 231 Albert Sabin Way-ML 0564, Cincinnati, OH, 45267, USA
| | - Jie Liu
- Department of Internal Medicine, Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, 231 Albert Sabin Way-ML 0564, Cincinnati, OH, 45267, USA.,Department of Pulmonary and Critical Care Medicine, Guangzhou Institute for Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jane J Yu
- Department of Internal Medicine, Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, 231 Albert Sabin Way-ML 0564, Cincinnati, OH, 45267, USA.
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28
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Gary JM, Simmons JK, Xu J, Zhang S, Peat TJ, Watson N, Gamache BJ, Zhang K, Kovalchuk AL, Michalowski AM, Chen JQ, Thaiwong T, Kiupel M, Gaikwad S, Etienne M, Simpson RM, Dubois W, Testa JR, Mock BA. Hypomorphic mTOR Downregulates CDK6 and Delays Thymic Pre-T LBL Tumorigenesis. Mol Cancer Ther 2020; 19:2221-2232. [PMID: 32747423 DOI: 10.1158/1535-7163.mct-19-0671] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 01/14/2020] [Accepted: 07/13/2020] [Indexed: 11/16/2022]
Abstract
PI3K/AKT/mTOR pathway hyperactivation is frequent in T-cell acute lymphoblastic leukemia/lymphoma (T-ALL/LBL). To model inhibition of mTOR, pre-T-cell lymphoblastic leukemia/lymphoma (pre-T LBL) tumor development was monitored in mice with T lymphocyte-specific, constitutively active AKT (Lck-MyrAkt2) that were either crossed to mTOR knockdown (KD) mice or treated with the mTOR inhibitor everolimus. Lck-MyrAkt2;mTOR KD mice lived significantly longer than Lck-MyrAkt2;mTOR wild-type (WT) mice, although both groups ultimately developed thymic pre-T LBL. An increase in survival was also observed when Lck-MyrAkt2;mTOR WT mice were treated for 8 weeks with everolimus. The transcriptional profiles of WT and KD thymic lymphomas were compared, and Ingenuity Pathway Upstream Regulator Analysis of differentially expressed genes in tumors from mTOR WT versus KD mice identified let-7 and miR-21 as potential regulatory genes. mTOR KD mice had higher levels of let-7a and miR-21 than mTOR WT mice, and rapamycin induced their expression in mTOR WT cells. CDK6 was one of the most downregulated targets of both let-7 and miR21 in mTOR KD tumors. CDK6 overexpression and decreased expression of let-7 in mTOR KD cells rescued a G1 arrest phenotype. Combined mTOR (rapamycin) and CDK4/6 (palbociclib) inhibition decreased tumor size and proliferation in tumor flank transplants, increased survival in an intravenous transplant model of disseminated leukemia compared with single agent treatment, and cooperatively decreased cell viability in human T-ALL/LBL cell lines. Thus, mTOR KD mice provide a model to explore drug combinations synergizing with mTOR inhibitors and can be used to identify downstream targets of inhibition.
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Affiliation(s)
- Joy M Gary
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland.,Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan
| | - John K Simmons
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | - Jinfei Xu
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Shuling Zhang
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | - Tyler J Peat
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | - Nicholas Watson
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | - Benjamin J Gamache
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland.,American University, Washington, DC
| | - Ke Zhang
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | | | | | - Jin-Qiu Chen
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | - Tuddow Thaiwong
- Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan
| | - Matti Kiupel
- Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan
| | - Snehal Gaikwad
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | - Maudeline Etienne
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | - R Mark Simpson
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | - Wendy Dubois
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland
| | - Joseph R Testa
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania.
| | - Beverly A Mock
- Laboratory of Cancer Biology and Genetics, CCR, NCI, NIH, Bethesda, Maryland.
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Mzoughi S, Fong JY, Papadopoli D, Koh CM, Hulea L, Pigini P, Di Tullio F, Andreacchio G, Hoppe MM, Wollmann H, Low D, Caldez MJ, Peng Y, Torre D, Zhao JN, Uchenunu O, Varano G, Motofeanu CM, Lakshmanan M, Teo SX, Wun CM, Perini G, Tan SY, Ong CB, Al-Haddawi M, Rajarethinam R, Hue SSS, Lim ST, Ong CK, Huang D, Ng SB, Bernstein E, Hasson D, Wee KB, Kaldis P, Jeyasekharan A, Dominguez-Sola D, Topisirovic I, Guccione E. PRDM15 is a key regulator of metabolism critical to sustain B-cell lymphomagenesis. Nat Commun 2020; 11:3520. [PMID: 32665551 PMCID: PMC7360777 DOI: 10.1038/s41467-020-17064-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 06/01/2020] [Indexed: 01/22/2023] Open
Abstract
PRDM (PRDI-BF1 and RIZ homology domain containing) family members are sequence-specific transcriptional regulators involved in cell identity and fate determination, often dysregulated in cancer. The PRDM15 gene is of particular interest, given its low expression in adult tissues and its overexpression in B-cell lymphomas. Despite its well characterized role in stem cell biology and during early development, the role of PRDM15 in cancer remains obscure. Herein, we demonstrate that while PRDM15 is largely dispensable for mouse adult somatic cell homeostasis in vivo, it plays a critical role in B-cell lymphomagenesis. Mechanistically, PRDM15 regulates a transcriptional program that sustains the activity of the PI3K/AKT/mTOR pathway and glycolysis in B-cell lymphomas. Abrogation of PRDM15 induces a metabolic crisis and selective death of lymphoma cells. Collectively, our data demonstrate that PRDM15 fuels the metabolic requirement of B-cell lymphomas and validate it as an attractive and previously unrecognized target in oncology.
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Affiliation(s)
- Slim Mzoughi
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jia Yi Fong
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, Singapore
| | - David Papadopoli
- Lady Davis Institute, SMBD JGH, McGill University, Gerald Bronfman Department of Oncology, McGill University, Montreal, QC, H3T 1E2, Canada
| | - Cheryl M Koh
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Laura Hulea
- Lady Davis Institute, SMBD JGH, McGill University, Gerald Bronfman Department of Oncology, McGill University, Montreal, QC, H3T 1E2, Canada
- Maisonneuve-Rosemont Hospital Research Centre, 5415 Assumption Blvd, Montreal, QC, H1T 2M4, Canada
- Département de Médecine, Université de Montréal, CP 6128, Succursale Centre-Ville, Montréal, QC, H3C 3J7, Canada
| | - Paolo Pigini
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Department of Pharmacy and Biotechnology, University of Bologna, Via F. Selmi 3, 40126, Bologna, Italy
| | - Federico Di Tullio
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Giuseppe Andreacchio
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Department of Pharmacy and Biotechnology, University of Bologna, Via F. Selmi 3, 40126, Bologna, Italy
| | - Michal Marek Hoppe
- Cancer Science Institute (CSI), National University of Singapore, Singapore, Singapore
| | - Heike Wollmann
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Diana Low
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Matias J Caldez
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Immunology Frontiers Research Center, Osaka University, 3-1 Yamada-oka, Suita, 565-0871, Japan
| | - Yanfen Peng
- Cancer Science Institute (CSI), National University of Singapore, Singapore, Singapore
| | - Denis Torre
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Julia N Zhao
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Oro Uchenunu
- Lady Davis Institute, SMBD JGH, McGill University, Gerald Bronfman Department of Oncology, McGill University, Montreal, QC, H3T 1E2, Canada
| | - Gabriele Varano
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Immunology Institute and Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Corina-Mihaela Motofeanu
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Manikandan Lakshmanan
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Shun Xie Teo
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Cheng Mun Wun
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Giovanni Perini
- Department of Pharmacy and Biotechnology, University of Bologna, Via F. Selmi 3, 40126, Bologna, Italy
| | - Soo Yong Tan
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Advanced Molecular Pathology Laboratory, IMCB, Singapore, Singapore
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chee Bing Ong
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Advanced Molecular Pathology Laboratory, IMCB, Singapore, Singapore
| | - Muthafar Al-Haddawi
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Advanced Molecular Pathology Laboratory, IMCB, Singapore, Singapore
| | - Ravisankar Rajarethinam
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Advanced Molecular Pathology Laboratory, IMCB, Singapore, Singapore
| | - Susan Swee-Shan Hue
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- National University Hospital (NUH), Singapore, Singapore
| | - Soon Thye Lim
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Graduate Medical School, Singapore, Singapore
| | - Choon Kiat Ong
- Duke-NUS Graduate Medical School, Singapore, Singapore
- Division of Cellular and Molecular Research, National Cancer Centre Singapore, Singapore, Singapore
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Dachuan Huang
- Division of Cellular and Molecular Research, National Cancer Centre Singapore, Singapore, Singapore
| | - Siok-Bian Ng
- Cancer Science Institute (CSI), National University of Singapore, Singapore, Singapore
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Emily Bernstein
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Dan Hasson
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Keng Boon Wee
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Philipp Kaldis
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Anand Jeyasekharan
- Cancer Science Institute (CSI), National University of Singapore, Singapore, Singapore
| | - David Dominguez-Sola
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Immunology Institute and Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ivan Topisirovic
- Lady Davis Institute, SMBD JGH, McGill University, Gerald Bronfman Department of Oncology, McGill University, Montreal, QC, H3T 1E2, Canada.
- Lady Davis Institute, SMBD JGH, McGill University, Departments of Experimental Medicine and Biochemistry, McGill University, Montreal, QC, H3T 1E2, Canada.
| | - Ernesto Guccione
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Mount Sinai Center for Therapeutics Discovery, Department of Oncological and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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30
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Jinnouchi H, Guo L, Sakamoto A, Sato Y, Cornelissen A, Kawakami R, Mori M, Torii S, Kuntz S, Harari E, Mori H, Fuller D, Gadhoke N, Fernandez R, Paek KH, Surve D, Romero M, Kolodgie FD, Virmani R, Finn AV. Advances in mammalian target of rapamycin kinase inhibitors: application to devices used in the treatment of coronary artery disease. Future Med Chem 2020; 12:1181-1195. [PMID: 32431177 PMCID: PMC7333590 DOI: 10.4155/fmc-2019-0304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 03/16/2020] [Indexed: 12/20/2022] Open
Abstract
Mammalian target of rapamycin (mTOR) inhibitors have been applied to vascular coronary devices to avoid neointimal growth and have become the predominant pharmacological agents used to prevent restenosis. mTOR inhibitors can affect not only proliferating vascular smooth muscle cells but also endothelial cells and therefore can result in delayed healing of the vessel including endothelialization. Emerging evidence suggests accelerated atherosclerosis due to the downstream negative effects on endothelial barrier functional recovery. The development of neoatherosclerosis within the neointima of drug-eluting stents can result in late thrombotic events. This type of problematic healing response may open the way for specific mTOR kinase inhibitors, such as ATP-competitive mTOR inhibitors. These inhibitors demonstrate a better healing profile than traditional limus-based drug-eluting stent and their clinical efficacy remains unknown.
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Affiliation(s)
- Hiroyuki Jinnouchi
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Liang Guo
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Atsushi Sakamoto
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Yu Sato
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Anne Cornelissen
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Rika Kawakami
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Masayuki Mori
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Sho Torii
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Salome Kuntz
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Emanuel Harari
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Hiroyoshi Mori
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Daniela Fuller
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Neel Gadhoke
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Raquel Fernandez
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Ka Hyun Paek
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Dipti Surve
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Maria Romero
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Frank D Kolodgie
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Renu Virmani
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
| | - Aloke V Finn
- Cardiovascular Department, CVPath Institute, Gaithersburg, MD 20878, USA
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Akt-targeted therapy as a promising strategy to overcome drug resistance in breast cancer - A comprehensive review from chemotherapy to immunotherapy. Pharmacol Res 2020; 156:104806. [PMID: 32294525 DOI: 10.1016/j.phrs.2020.104806] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/04/2020] [Accepted: 04/05/2020] [Indexed: 12/12/2022]
Abstract
Breast cancer is the most frequently occurring cancer in women. Chemotherapy in combination with immunotherapy has been used to treat breast cancer. Atezolizumab targeting the protein programmed cell death-ligand (PD-L1) in combination with paclitaxel was recently approved by the Food and Drug Administration (FDA) for Triple-Negative Breast Cancer (TNBC), the most incurable type of breast cancer. However, the use of such drugs is restricted by genotype and is effective only for those TNBC patients expressing PD-L1. In addition, resistance to chemotherapy with drugs such as lapatinib, geftinib, and tamoxifen can develop. In this review, we address chemoresistance in breast cancer and discuss Akt as the master regulator of drug resistance and several oncogenic mechanisms in breast cancer. Akt not only directly interacts with the mitogen-activated protein (MAP) kinase signaling pathway to affect PD-L1 expression, but also has crosstalk with Notch and Wnt/β-catenin signaling pathways involved in cell migration and breast cancer stem cell integrity. In this review, we discuss the effects of tyrosine kinase inhibitors on Akt activation as well as the mechanism of Akt signaling in drug resistance. Akt also has a crucial role in mitochondrial metabolism and migrates into mitochondria to remodel breast cancer cell metabolism while also functioning in responses to hypoxic conditions. The Akt inhibitors ipatasertib, capivasertib, uprosertib, and MK-2206 not only suppress cancer cell proliferation and metastasis, but may also inhibit cytokine regulation and PD-L1 expression. Ipatasertib and uprosertib are undergoing clinical investigation to treat TNBC. Inhibition of Akt and its regulators can be used to control breast cancer progression and also immunosuppression, while discovery of additional compounds that target Akt and its modulators could provide solutions to resistance to chemotherapy and immunotherapy.
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32
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Kumar A, Rai S, Rathi E, Agarwal P, Kini SG. Pharmacophore-guided fragment-based design of novel mammalian target of rapamycin inhibitors: extra precision docking, fingerprint-based 2D and atom-based 3D-QSAR modelling. J Biomol Struct Dyn 2020; 39:1155-1173. [PMID: 32037974 DOI: 10.1080/07391102.2020.1726816] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Rapamycin and their derivatives known as rapalogs were the first-generation mTOR inhibitors which interacted with mTORC1 but not with the mTORC2 protein. Second-generation inhibitors could bind with both and showed excellent anti-proliferative activity. Our aim was to design novel mTOR inhibitors which could bind at both the allosteric and the kinase site. The FRB domain is present in both the mTORC1 and mTORC2 protein complexes. We have employed e-pharmacophore-guided fragment-based design to develop novel mTOR inhibitors. The affinity of designed molecules at both the sites was analysed using molecular docking in extra precision mode. The atom-based 3D-QSAR model was developed to predict the activity while the fingerprint-based 2D-QSAR model was employed to refine an identified hit as potent dual mTOR inhibitor. Ligand ASK23 showed a docking score of -15.452 kcal/mol at the allosteric site (PDB ID 5GPG) while ASK38 showed a docking score of -11.535 kcal/mol at the kinase site (PDB ID 4JT6). Ligand ASK12 showed binding energy of -106.23 kcal/mol at the allosteric site. Refined molecule ASK12a from ASK12 showed the highest predicted activity (pIC50: 6.512). The stability of the best hits and receptor complex was analysed using molecular dynamics simulation studies. Herein we report five potential mTOR dual inhibitors based on the predicted activity, drug-likeness analysis and off-target effects. To the best of our knowledge, this is the first report on pharmacophore-guided fragment-based drug design for mTOR inhibitors. This design strategy can be used for the rational drug design against other proteins for which only apo-structures are available. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Avinash Kumar
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sudhanshu Rai
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Ekta Rathi
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Paridhi Agarwal
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Suvarna G Kini
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
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33
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Zanini S, Renzi S, Giovinazzo F, Bermano G. mTOR Pathway in Gastroenteropancreatic Neuroendocrine Tumor (GEP-NETs). Front Endocrinol (Lausanne) 2020; 11:562505. [PMID: 33304317 PMCID: PMC7701056 DOI: 10.3389/fendo.2020.562505] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 09/07/2020] [Indexed: 12/14/2022] Open
Abstract
Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) originate from neuroendocrine cells in the gastrointestinal tract. They are heterogeneous, and though initially considered rare tumors, the incidence of GEP-NENs has increased in the last few decades. Therapeutic approaches for the metastatic disease include surgery, radiological intervention by chemoembolisation, radiofrequency ablation, biological therapy in addition to somatostatin analogs, and PRRT therapy (177Lu-DOTATATE). The PI3K-AKT-mTOR pathway is essential in the regulation of protein translation, cell growth, and metabolism. Evidence suggests that the mTOR pathway is involved in malignant progression and resistance to treatment through over-activation of several mechanisms. PI3K, one of the main downstream of the Akt-mTOR axis, is mainly involved in the neoplastic process. This pathway is frequently deregulated in human tumors, making it a central target in the development of new anti-cancer treatments. Recent molecular studies identify potential targets within the PI3K/Akt/mTOR pathway in GEP-NENs. However, the use of target therapy has been known to lead to resistance due to several mechanisms such as feedback activation of alternative pathways, inactivation of protein kinases, and deregulation of the downstream mTOR components. Therefore, the specific role of targeted drugs for the management of GEP-NENs is yet to be well-defined. The variable clinical presentation of advanced neuroendocrine tumors is a significant challenge for designing studies. This review aims to highlight the role of the PI3K/Akt/mTOR pathway in the development of neuroendocrine tumors and further specify its potential as a therapeutic target in advanced stages.
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Affiliation(s)
- Sara Zanini
- Centre for Obesity Research and Education (CORE), School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen, United Kingdom
| | - Serena Renzi
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Francesco Giovinazzo
- Fondazione Policlinico Universitario A. Gemelli Istituto di ricovero e cura a carattere scientifico (IRCCS), Department of Surgery -Transplantation Service, Rome, Italy
- *Correspondence: Francesco Giovinazzo
| | - Giovanna Bermano
- Centre for Obesity Research and Education (CORE), School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen, United Kingdom
- Giovanna Bermano
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Targeting Autophagy for Cancer Treatment and Tumor Chemosensitization. Cancers (Basel) 2019; 11:cancers11101599. [PMID: 31635099 PMCID: PMC6826429 DOI: 10.3390/cancers11101599] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/14/2019] [Accepted: 10/16/2019] [Indexed: 12/15/2022] Open
Abstract
Autophagy is a tightly regulated catabolic process that facilitates nutrient recycling from damaged organelles and other cellular components through lysosomal degradation. Deregulation of this process has been associated with the development of several pathophysiological processes, such as cancer and neurodegenerative diseases. In cancer, autophagy has opposing roles, being either cytoprotective or cytotoxic. Thus, deciphering the role of autophagy in each tumor context is crucial. Moreover, autophagy has been shown to contribute to chemoresistance in some patients. In this regard, autophagy modulation has recently emerged as a promising therapeutic strategy for the treatment and chemosensitization of tumors, and has already demonstrated positive clinical results in patients. In this review, the dual role of autophagy during carcinogenesis is discussed and current therapeutic strategies aimed at targeting autophagy for the treatment of cancer, both under preclinical and clinical development, are presented. The use of autophagy modulators in combination therapies, in order to overcome drug resistance during cancer treatment, is also discussed as well as the potential challenges and limitations for the use of these novel therapeutic strategies in the clinic.
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35
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Drug resistance in papillary RCC: from putative mechanisms to clinical practicalities. Nat Rev Urol 2019; 16:655-673. [PMID: 31602010 DOI: 10.1038/s41585-019-0233-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2019] [Indexed: 11/08/2022]
Abstract
Papillary renal cell carcinoma (pRCC) is the second most common renal cell carcinoma (RCC) subtype and accounts for 10-15% of all RCCs. Despite clinical need, few pharmacogenomics studies in pRCC have been performed. Moreover, current research fails to adequately include pRCC laboratory models, such as the ACHN or Caki-2 pRCC cell lines. The molecular mechanisms involved in pRCC development and drug resistance are more diverse than in clear-cell RCC, in which inactivation of VHL occurs in the majority of tumours. Drug resistance to multiple therapies in pRCC occurs via genetic alteration (such as mutations resulting in abnormal receptor tyrosine kinase activation or RALBP1 inhibition), dysregulation of signalling pathways (such as GSK3β-EIF4EBP1, PI3K-AKT and the MAPK or interleukin signalling pathways), deregulation of cellular processes (such as resistance to apoptosis or epithelial-to-mesenchymal transition) and interactions between the cell and its environment (for example, through activation of matrix metalloproteinases). Improved understanding of resistance mechanisms will facilitate drug discovery and provide new effective therapies. Further studies on novel resistance biomarkers are needed to improve patient prognosis and stratification as well as drug development.
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36
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Zahid KR, Yao S, Khan ARR, Raza U, Gou D. mTOR/HDAC1 Crosstalk Mediated Suppression of ADH1A and ALDH2 Links Alcohol Metabolism to Hepatocellular Carcinoma Onset and Progression in silico. Front Oncol 2019; 9:1000. [PMID: 31637215 PMCID: PMC6787164 DOI: 10.3389/fonc.2019.01000] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 09/17/2019] [Indexed: 12/11/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is ranked the third deadliest cancer worldwide whose molecular pathogenesis is not fully understood. Although deregulated metabolic pathways have been implicated in HCC onset and progression, the mechanisms triggering this metabolic imbalance are yet to be explored. Here, we identified a gene signature coding catabolic enzymes (Cat-GS) involved in key metabolic pathways like amino acid, lipid, carbohydrate, drug, and retinol metabolism as suppressed in HCC. A higher expression of deregulated Cat-GS is associated with good survival and less aggressive disease state in HCC patients. On the other hand, we identified mTOR signaling as a key determinant in HCC onset and progression, whose hyperactivation is found associated with poor survival and aggressive disease state in HCC patients. Next, out of Cat-GS, we established two key regulators of alcohol metabolism, alcohol dehydrogenase 1A (ADH1A) and aldehyde dehydrogenase 2 (ALDH2), as being transcriptionally suppressed by histone deacetylase 1 (HDAC1) at the downstream of mTORC1 signaling. Suppressed ADH1A and ALDH2 expression aligns well with HCC-specific molecular profile and can efficiently predict disease onset and progression, whereas higher ADH1A and ALDH2 expression is associated with good survival and less aggressive disease state in HCC patients. Overall, our in silico findings suggest that transcriptional suppression of alcohol metabolism regulators, ADH1A and ALDH2, at the downstream of mTOR signaling is, in part, responsible for triggering oncogenic transformation of hepatocytes resulting in disease onset and progression in HCC.
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Affiliation(s)
- Kashif Rafiq Zahid
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Vascular Disease Research Center, College of Life Sciences and Oceanography, Provincial Key Laboratory of Regional Immunity and Diseases, Carson International Cancer Center, Shenzhen University, Shenzhen, China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering Shenzhen University, Shenzhen, China
| | - Shun Yao
- Department of Neurosurgery and Pituitary Tumor Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Abdur Rehman Raza Khan
- Military College of Signals, National University of Science and Technology, Rawalpindi, Pakistan
| | - Umar Raza
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Pakistan
| | - Deming Gou
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Vascular Disease Research Center, College of Life Sciences and Oceanography, Provincial Key Laboratory of Regional Immunity and Diseases, Carson International Cancer Center, Shenzhen University, Shenzhen, China
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37
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Sarmento-Ribeiro AB, Scorilas A, Gonçalves AC, Efferth T, Trougakos IP. The emergence of drug resistance to targeted cancer therapies: Clinical evidence. Drug Resist Updat 2019; 47:100646. [PMID: 31733611 DOI: 10.1016/j.drup.2019.100646] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 12/14/2022]
Abstract
For many decades classical anti-tumor therapies included chemotherapy, radiation and surgery; however, in the last two decades, following the identification of the genomic drivers and main hallmarks of cancer, the introduction of therapies that target specific tumor-promoting oncogenic or non-oncogenic pathways, has revolutionized cancer therapeutics. Despite the significant progress in cancer therapy, clinical oncologists are often facing the primary impediment of anticancer drug resistance, as many cancer patients display either intrinsic chemoresistance from the very beginning of the therapy or after initial responses and upon repeated drug treatment cycles, acquired drug resistance develops and thus relapse emerges, resulting in increased mortality. Our attempts to understand the molecular basis underlying these drug resistance phenotypes in pre-clinical models and patient specimens revealed the extreme plasticity and adaptive pathways employed by tumor cells, being under sustained stress and extensive genomic/proteomic instability due to the applied therapeutic regimens. Subsequent efforts have yielded more effective inhibitors and combinatorial approaches (e.g. the use of specific pharmacologic inhibitors with immunotherapy) that exhibit synergistic effects against tumor cells, hence enhancing therapeutic indices. Furthermore, new advanced methodologies that allow for the early detection of genetic/epigenetic alterations that lead to drug chemoresistance and prospective validation of biomarkers which identify patients that will benefit from certain drug classes, have started to improve the clinical outcome. This review discusses emerging principles of drug resistance to cancer therapies targeting a wide array of oncogenic kinases, along with hedgehog pathway and the proteasome and apoptotic inducers, as well as epigenetic and metabolic modulators. We further discuss mechanisms of resistance to monoclonal antibodies, immunomodulators and immune checkpoint inhibitors, potential biomarkers of drug response/drug resistance, along with possible new therapeutic avenues for the clinicians to combat devastating drug resistant malignancies. It is foreseen that these topics will be major areas of focused multidisciplinary translational research in the years to come.
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Affiliation(s)
- Ana Bela Sarmento-Ribeiro
- Laboratory of Oncobiology and Hematology and University Clinic of Hematology and Coimbra Institute for Clinical and Biomedical Research - Group of Environment Genetics and Oncobiology (iCBR/CIMAGO), Faculty of Medicine, University of Coimbra (FMUC), Center for Innovative Biomedicine and Biotechnology (CIBB), Coimbra, Portugal; Hematology Department, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.
| | - Andreas Scorilas
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Athens, Greece
| | - Ana Cristina Gonçalves
- Laboratory of Oncobiology and Hematology and University Clinic of Hematology and Coimbra Institute for Clinical and Biomedical Research - Group of Environment Genetics and Oncobiology (iCBR/CIMAGO), Faculty of Medicine, University of Coimbra (FMUC), Center for Innovative Biomedicine and Biotechnology (CIBB), Coimbra, Portugal
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Mainz, Germany
| | - Ioannis P Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, Greece.
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Liu Z, Wang H, He J, Yuan X, Sun W. Rictor ablation in BMSCs inhibits bone metastasis of TM40D cells by attenuating osteolytic destruction and CAF formation. Int J Biol Sci 2019; 15:2448-2460. [PMID: 31595162 PMCID: PMC6775318 DOI: 10.7150/ijbs.37241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 07/28/2019] [Indexed: 01/06/2023] Open
Abstract
The mTOR complex 2 (mTORC2) is recognized as a promising target for breast cancer treatment. As mTORC2-specific inhibitors do not yet exist, studies into the role of mTORC2 in cancer are performed by deleting Rictor or by RNAi-mediated Rictor silencing. The purpose of this study was to explore the effects of Rictor ablation in bone mesenchymal stromal cells (BMSCs) on bone metastasis of breast cancer. First, female mice with the genotype of Prx1-Cre;Rictorf/f (hereafter RiCKO) or Rictorf/f (as control) were injected intratibially with cells of the breast cancer cell line (TM40D) at 4 months of age. Three weeks later, osteolytic bone destruction was detected in metastatic legs by X-ray and micro-CT. We found that Rictor ablation in BMSCs inhibited TM40D-induced osteolytic bone destruction and resulted in greater bone volume maintenance in vivo. Lower CTX-I serum level, a decreased number of TRAP+ osteoclasts and lower Cathepsin-K expression observed at the tumor-bone interface indicated that osteoclastogenesis was inhibited in RiCKO mice. Additionally, co-culture experiments confirmed that Rictor deletion in BMSCs diminished osteoclast differentiation partly via down regulation of RANKL expression. Furthermore, Rictor deficiency was found to reduce the transition of BMSCs to CAFs coupled with decreased secretion of cytokines (IL-6, RANKL, TGFβ), which resulted in lower chemotaxis and less proliferation in TM40D cells. These results suggest that Rictor ablation in BMSCs plays dual roles in breast cancer bone metastasis: (1) repression of osteolytic bone destruction; (2) inhibition of tumor growth.
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Affiliation(s)
- Zibo Liu
- Department of Anatomy, Histology and Embryology, Laboratory of Reproductive Medicine, Research Center for Bone and Stem Cells, Nanjing Medical University, Nanjing, China
| | - Hui Wang
- Department of Anatomy, Histology and Embryology, Laboratory of Reproductive Medicine, Research Center for Bone and Stem Cells, Nanjing Medical University, Nanjing, China
| | - Jialing He
- Department of Anatomy, Histology and Embryology, Laboratory of Reproductive Medicine, Research Center for Bone and Stem Cells, Nanjing Medical University, Nanjing, China
| | - Xiaoqin Yuan
- Department of Anatomy, Histology and Embryology, Laboratory of Reproductive Medicine, Research Center for Bone and Stem Cells, Nanjing Medical University, Nanjing, China
| | - Weiwei Sun
- Department of Anatomy, Histology and Embryology, Laboratory of Reproductive Medicine, Research Center for Bone and Stem Cells, Nanjing Medical University, Nanjing, China
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Zeng JD, Wu WKK, Wang HY, Li XX. Serine and one-carbon metabolism, a bridge that links mTOR signaling and DNA methylation in cancer. Pharmacol Res 2019; 149:104352. [PMID: 31323332 DOI: 10.1016/j.phrs.2019.104352] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 12/24/2022]
Abstract
Mammalian / mechanistic target of rapamycin (mTOR) is a critical sensor of environmental cues that regulates cellular macromolecule synthesis and metabolism in eukaryotes. DNA methylation is the most well-studied epigenetic modification that is capable of regulating gene transcription and affecting genome stability. Both dysregulation of mTOR signaling and DNA methylation patterns have been shown to be closely linked to tumor progression and serve as promising targets for cancer therapy. Although their respective roles in tumorigenesis have been extensively studied, whether molecular interplay exists between them is still largely unknown. In this review, we provide a brief overview of mTOR signaling, DNA methylation as well as related serine and one-carbon metabolism, one of the most critical aspects of metabolic reprogramming in cancer. Based on the latest understanding regarding the regulation of metabolic processes by mTOR signaling as well as interaction between metabolism and epigenetics, we further discuss how serine and one-carbon metabolism may serve as a bridge that links mTOR signaling and DNA methylation to promote tumor growth. Elucidating their relationship may provide novel insight for cancer therapy in the future.
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Affiliation(s)
- Ju-Deng Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation center for Cancer Medicine, Sun Yat-sen University cancer center, Guangzhou, Guangdong, China; Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China
| | - William K K Wu
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China; State Key Laboratory of Digestive diseases, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Hui-Yun Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation center for Cancer Medicine, Sun Yat-sen University cancer center, Guangzhou, Guangdong, China.
| | - Xiao-Xing Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation center for Cancer Medicine, Sun Yat-sen University cancer center, Guangzhou, Guangdong, China.
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Makhov P, Joshi S, Ghatalia P, Kutikov A, Uzzo RG, Kolenko VM. Resistance to Systemic Therapies in Clear Cell Renal Cell Carcinoma: Mechanisms and Management Strategies. Mol Cancer Ther 2019; 17:1355-1364. [PMID: 29967214 DOI: 10.1158/1535-7163.mct-17-1299] [Citation(s) in RCA: 272] [Impact Index Per Article: 54.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/28/2018] [Accepted: 05/04/2018] [Indexed: 12/15/2022]
Abstract
Renal cell carcinoma (RCC) is the most common form of kidney cancer. It is categorized into various subtypes, with clear cell RCC (ccRCC) representing about 85% of all RCC tumors. The lack of sensitivity to chemotherapy and radiation therapy prompted research efforts into novel treatment options. The development of targeted therapeutics, including multi-targeted tyrosine kinase inhibitors (TKI) and mTOR inhibitors, has been a major breakthrough in ccRCC therapy. More recently, other therapeutic strategies, including immune checkpoint inhibitors, have emerged as effective treatment options against advanced ccRCC. Furthermore, recent advances in disease biology, tumor microenvironment, and mechanisms of resistance formed the basis for attempts to combine targeted therapies with newer generation immunotherapies to take advantage of possible synergy. This review focuses on the current status of basic, translational, and clinical studies on mechanisms of resistance to systemic therapies in ccRCC. Mol Cancer Ther; 17(7); 1355-64. ©2018 AACR.
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Affiliation(s)
- Peter Makhov
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Shreyas Joshi
- Division of Urologic Oncology, Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Pooja Ghatalia
- Division of Hematology/Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Alexander Kutikov
- Division of Urologic Oncology, Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Robert G Uzzo
- Division of Urologic Oncology, Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Vladimir M Kolenko
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania.
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Sciarretta S, Forte M, Frati G, Sadoshima J. New Insights Into the Role of mTOR Signaling in the Cardiovascular System. Circ Res 2019; 122:489-505. [PMID: 29420210 DOI: 10.1161/circresaha.117.311147] [Citation(s) in RCA: 294] [Impact Index Per Article: 58.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The mTOR (mechanistic target of rapamycin) is a master regulator of several crucial cellular processes, including protein synthesis, cellular growth, proliferation, autophagy, lysosomal function, and cell metabolism. mTOR interacts with specific adaptor proteins to form 2 multiprotein complexes, called mTORC1 (mTOR complex 1) and mTORC2 (mTOR complex 2). In the cardiovascular system, the mTOR pathway regulates both physiological and pathological processes in the heart. It is needed for embryonic cardiovascular development and for maintaining cardiac homeostasis in postnatal life. Studies involving mTOR loss-of-function models revealed that mTORC1 activation is indispensable for the development of adaptive cardiac hypertrophy in response to mechanical overload. mTORC2 is also required for normal cardiac physiology and ensures cardiomyocyte survival in response to pressure overload. However, partial genetic or pharmacological inhibition of mTORC1 reduces cardiac remodeling and heart failure in response to pressure overload and chronic myocardial infarction. In addition, mTORC1 blockade reduces cardiac derangements induced by genetic and metabolic disorders and has been reported to extend life span in mice. These studies suggest that pharmacological targeting of mTOR may represent a therapeutic strategy to confer cardioprotection, although clinical evidence in support of this notion is still scarce. This review summarizes and discusses the new evidence on the pathophysiological role of mTOR signaling in the cardiovascular system.
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Affiliation(s)
- Sebastiano Sciarretta
- From the Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy (S.S., G.F.); Department of AngioCardioNeurology, IRCCS Neuromed, Pozzilli, Italy (S.S., M.F., G.F.); and Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (J.S.)
| | - Maurizio Forte
- From the Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy (S.S., G.F.); Department of AngioCardioNeurology, IRCCS Neuromed, Pozzilli, Italy (S.S., M.F., G.F.); and Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (J.S.)
| | - Giacomo Frati
- From the Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy (S.S., G.F.); Department of AngioCardioNeurology, IRCCS Neuromed, Pozzilli, Italy (S.S., M.F., G.F.); and Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (J.S.)
| | - Junichi Sadoshima
- From the Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy (S.S., G.F.); Department of AngioCardioNeurology, IRCCS Neuromed, Pozzilli, Italy (S.S., M.F., G.F.); and Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (J.S.).
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Rodriguez-Freixinos V, Ruiz-Pace F, Fariñas-Madrid L, Garrido-Castro AC, Villacampa G, Nuciforo P, Vivancos A, Dienstmann R, Oaknin A. Genomic heterogeneity and efficacy of PI3K pathway inhibitors in patients with gynaecological cancer. ESMO Open 2019. [PMID: 30962959 DOI: 10.1136/esmoopen-2018-000444] [] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Objectives Aberrant PI3K/AKT/mTOR activation is common in gynaecological malignancies. However, predictive biomarkers of response to PI3K pathway inhibitors (PAMi) have yet to be identified. Methods We analysed the outcomes of patients with advanced gynaecological cancer with available genomic data, treated with PAMi as single agents or in combination in phase I clinical trials. Clinical relevance of the PIK3CA mutant allele fraction (MAF) was investigated. MAF of each variant was normalised for tumour purity in the sample (adjMAFs) to infer clonality of PIK3CA mutations, defined as clonal (≥0.4) or subclonal (<0.4). Results A total of 50 patients with gynaecological cancer (24 ovarian; 15 endometrial; 11 cervical) with available targeted mutation profiling were selected. PAMi therapy was matched to PIK3CA/PTEN mutation in 30 patients (60%). The overall response rate, median time to progression (mTTP) and clinical benefit rate (CBR) of the entire population were 10% (N=5), 3.57 months (2.57-4.4) and 40% (N=18), respectively. Genotype-matched therapy did not lead to a favourable CBR (OR 0.91, p=1 (0.2-3.7)) or mTTP (3.57 months (2.6-4.4) vs 3.73 months (1.9-13.2); HR 1.41; p=0.29). We did not detect differences in mTTP according to therapy or PIK3CA codon mutation (HR 1.71, p=0.24). Overall, 41% of patients had a TTP ratio (TTP PAMi/TTP on immediately prior or subsequent palliative chemotherapy) ≥1.3, without statistically significant differences according to tumour type (p=0.39), molecular alteration status (p=0.13) or therapy (p=0.54). In univariate analysis, genotype-matched therapy in patients with PIK3CA clonal events was associated with improved mTTP (HR 3.6; p=0.03). Conclusions Our study demonstrates that patients with advanced gynaecological cancer, refractory to standard therapies, achieved meaningful clinical benefit from PAMi. The impact of PI3KCA clonality on response to selected PAMi in patients with gynaecological cancer deserves further investigation.
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Affiliation(s)
- Victor Rodriguez-Freixinos
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Fiorella Ruiz-Pace
- Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Lorena Fariñas-Madrid
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Ana Christina Garrido-Castro
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Guillermo Villacampa
- Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Paolo Nuciforo
- Molecular Oncology Laboratory, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Ana Vivancos
- Cancer Genomics Laboratory, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Rodrigo Dienstmann
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.,Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Ana Oaknin
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
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Rodriguez-Freixinos V, Ruiz-Pace F, Fariñas-Madrid L, Garrido-Castro AC, Villacampa G, Nuciforo P, Vivancos A, Dienstmann R, Oaknin A. Genomic heterogeneity and efficacy of PI3K pathway inhibitors in patients with gynaecological cancer. ESMO Open 2019. [PMID: 30962959 DOI: 10.1136/esmoopen-2018-000444]+[] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Aberrant PI3K/AKT/mTOR activation is common in gynaecological malignancies. However, predictive biomarkers of response to PI3K pathway inhibitors (PAMi) have yet to be identified. METHODS We analysed the outcomes of patients with advanced gynaecological cancer with available genomic data, treated with PAMi as single agents or in combination in phase I clinical trials. Clinical relevance of the PIK3CA mutant allele fraction (MAF) was investigated. MAF of each variant was normalised for tumour purity in the sample (adjMAFs) to infer clonality of PIK3CA mutations, defined as clonal (≥0.4) or subclonal (<0.4). RESULTS A total of 50 patients with gynaecological cancer (24 ovarian; 15 endometrial; 11 cervical) with available targeted mutation profiling were selected. PAMi therapy was matched to PIK3CA/PTEN mutation in 30 patients (60%). The overall response rate, median time to progression (mTTP) and clinical benefit rate (CBR) of the entire population were 10% (N=5), 3.57 months (2.57-4.4) and 40% (N=18), respectively. Genotype-matched therapy did not lead to a favourable CBR (OR 0.91, p=1 (0.2-3.7)) or mTTP (3.57 months (2.6-4.4) vs 3.73 months (1.9-13.2); HR 1.41; p=0.29). We did not detect differences in mTTP according to therapy or PIK3CA codon mutation (HR 1.71, p=0.24). Overall, 41% of patients had a TTP ratio (TTP PAMi/TTP on immediately prior or subsequent palliative chemotherapy) ≥1.3, without statistically significant differences according to tumour type (p=0.39), molecular alteration status (p=0.13) or therapy (p=0.54). In univariate analysis, genotype-matched therapy in patients with PIK3CA clonal events was associated with improved mTTP (HR 3.6; p=0.03). CONCLUSIONS Our study demonstrates that patients with advanced gynaecological cancer, refractory to standard therapies, achieved meaningful clinical benefit from PAMi. The impact of PI3KCA clonality on response to selected PAMi in patients with gynaecological cancer deserves further investigation.
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Affiliation(s)
- Victor Rodriguez-Freixinos
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Fiorella Ruiz-Pace
- Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Lorena Fariñas-Madrid
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Ana Christina Garrido-Castro
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Guillermo Villacampa
- Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Paolo Nuciforo
- Molecular Oncology Laboratory, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Ana Vivancos
- Cancer Genomics Laboratory, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Rodrigo Dienstmann
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.,Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Ana Oaknin
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
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Rodriguez-Freixinos V, Ruiz-Pace F, Fariñas-Madrid L, Garrido-Castro AC, Villacampa G, Nuciforo P, Vivancos A, Dienstmann R, Oaknin A. Genomic heterogeneity and efficacy of PI3K pathway inhibitors in patients with gynaecological cancer. ESMO Open 2019; 4:e000444. [PMID: 30962959 PMCID: PMC6435251 DOI: 10.1136/esmoopen-2018-000444] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/23/2018] [Accepted: 11/24/2018] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES Aberrant PI3K/AKT/mTOR activation is common in gynaecological malignancies. However, predictive biomarkers of response to PI3K pathway inhibitors (PAMi) have yet to be identified. METHODS We analysed the outcomes of patients with advanced gynaecological cancer with available genomic data, treated with PAMi as single agents or in combination in phase I clinical trials. Clinical relevance of the PIK3CA mutant allele fraction (MAF) was investigated. MAF of each variant was normalised for tumour purity in the sample (adjMAFs) to infer clonality of PIK3CA mutations, defined as clonal (≥0.4) or subclonal (<0.4). RESULTS A total of 50 patients with gynaecological cancer (24 ovarian; 15 endometrial; 11 cervical) with available targeted mutation profiling were selected. PAMi therapy was matched to PIK3CA/PTEN mutation in 30 patients (60%). The overall response rate, median time to progression (mTTP) and clinical benefit rate (CBR) of the entire population were 10% (N=5), 3.57 months (2.57-4.4) and 40% (N=18), respectively. Genotype-matched therapy did not lead to a favourable CBR (OR 0.91, p=1 (0.2-3.7)) or mTTP (3.57 months (2.6-4.4) vs 3.73 months (1.9-13.2); HR 1.41; p=0.29). We did not detect differences in mTTP according to therapy or PIK3CA codon mutation (HR 1.71, p=0.24). Overall, 41% of patients had a TTP ratio (TTP PAMi/TTP on immediately prior or subsequent palliative chemotherapy) ≥1.3, without statistically significant differences according to tumour type (p=0.39), molecular alteration status (p=0.13) or therapy (p=0.54). In univariate analysis, genotype-matched therapy in patients with PIK3CA clonal events was associated with improved mTTP (HR 3.6; p=0.03). CONCLUSIONS Our study demonstrates that patients with advanced gynaecological cancer, refractory to standard therapies, achieved meaningful clinical benefit from PAMi. The impact of PI3KCA clonality on response to selected PAMi in patients with gynaecological cancer deserves further investigation.
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Affiliation(s)
- Victor Rodriguez-Freixinos
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Fiorella Ruiz-Pace
- Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Lorena Fariñas-Madrid
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Ana Christina Garrido-Castro
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Guillermo Villacampa
- Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Paolo Nuciforo
- Molecular Oncology Laboratory, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Ana Vivancos
- Cancer Genomics Laboratory, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Rodrigo Dienstmann
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
- Oncology Data Science (ODysSey) Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Ana Oaknin
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
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Molina L, Yang H, Adebayo Michael AO, Oertel M, Bell A, Singh S, Chen X, Tao J, Monga SP. mTOR inhibition affects Yap1-β-catenin-induced hepatoblastoma growth and development. Oncotarget 2019; 10:1475-1490. [PMID: 30863496 PMCID: PMC6407673 DOI: 10.18632/oncotarget.26668] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 01/22/2019] [Indexed: 12/15/2022] Open
Abstract
Hepatoblastoma (HB) is the most common pediatric liver malignancy. Around 80% of HB demonstrate simultaneous activation of β-catenin and Yes-associated protein 1 (Yap1). The mechanism by which these signaling pathways contribute to HB pathogenesis remain obscure. Recently, mTORC1 activation was reported in human HB cells and in a murine HB model driven by β-catenin and Yap1. Here, we directly investigate the therapeutic impact of mTOR inhibition following HB development in the Yap1-β-catenin model. HB were established by hydrodynamic tail vein injection of Sleeping Beauty transposase and plasmids coding for ΔN90-β-catenin and S127A-Yap1. Five weeks after injection, when HB were evident, mice were randomized into Rapamycin diet-fed or basal-diet-fed groups for 5-weeks. Tumor growth was monitored via ultrasound imaging and mice in both groups were euthanized after 5-weeks for molecular analysis. Transcriptomic analysis showed a strong correlation in gene expression between HB in the Yap1-β-catenin model and HB patient cohorts. Rapamycin treatment decreased HB burden, almost normalizing liver weight to body weight ratio. Ultrasound imaging showed reduction in tumor growth over the duration of Rapamycin treatment as compared to controls. Majority of HB in the controls exhibited crowded fetal or embryonal histology, while remnant tumors in the experimental group showed well-differentiated fetal morphology. Immunohistochemistry confirmed inhibition of mTORC1 in the Rapamycin group. Thus, Rapamycin reduces HB in a clinically relevant model driven by β-catenin and Yap1, supporting use of mTORC1 inhibitors in their therapy. We also show the utility of standard and 3D ultrasound imaging for monitoring liver tumors in mice.
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Affiliation(s)
- Laura Molina
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Medical Scientist Training Program, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Hong Yang
- Department of Medical Ultrasonics, The First Affiliated Hospital of Guangxi Medical University, Guangxi, China
| | | | - Michael Oertel
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Pittsburgh Liver Research Center, University of Pittsburgh Medical Center and University of Pittsburgh School of Medicine, Pittsburgh PA, USA
| | - Aaron Bell
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Sucha Singh
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Xin Chen
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, CA, USA
| | - Junyan Tao
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Satdarshan P.S. Monga
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Pittsburgh Liver Research Center, University of Pittsburgh Medical Center and University of Pittsburgh School of Medicine, Pittsburgh PA, USA
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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46
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Falzone L, Salomone S, Libra M. Evolution of Cancer Pharmacological Treatments at the Turn of the Third Millennium. Front Pharmacol 2018; 9:1300. [PMID: 30483135 PMCID: PMC6243123 DOI: 10.3389/fphar.2018.01300] [Citation(s) in RCA: 473] [Impact Index Per Article: 78.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 10/23/2018] [Indexed: 12/11/2022] Open
Abstract
The medical history of cancer began millennia ago. Historical findings of patients with cancer date back to ancient Egyptian and Greek civilizations, where this disease was predominantly treated with radical surgery and cautery that were often ineffective, leading to the death of patients. Over the centuries, important discoveries allowed to identify the biological and pathological features of tumors, without however contributing to the development of effective therapeutic approaches until the end of the 1800s, when the discovery of X-rays and their use for the treatment of tumors provided the first modern therapeutic approach in medical oncology. However, a real breakthrough took place after the Second World War, with the discovery of cytotoxic antitumor drugs and the birth of chemotherapy for the treatment of various hematological and solid tumors. Starting from this epochal turning point, there has been an exponential growth of studies concerning the use of new drugs for cancer treatment. The second fundamental breakthrough in the field of oncology and pharmacology took place at the beginning of the '80s, thanks to molecular and cellular biology studies that allowed the development of specific drugs for some molecular targets involved in neoplastic processes, giving rise to targeted therapy. Both chemotherapy and target therapy have significantly improved the survival and quality of life of cancer patients inducing sometimes complete tumor remission. Subsequently, at the turn of the third millennium, thanks to genetic engineering studies, there was a further advancement of clinical oncology and pharmacology with the introduction of monoclonal antibodies and immune checkpoint inhibitors for the treatment of advanced or metastatic tumors, for which no effective treatment was available before. Today, cancer research is always aimed at the study and development of new therapeutic approaches for cancer treatment. Currently, several researchers are focused on the development of cell therapies, anti-tumor vaccines, and new biotechnological drugs that have already shown promising results in preclinical studies, therefore, in the near future, we will certainly assist to a new revolution in the field of medical oncology.
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Affiliation(s)
- Luca Falzone
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Salvatore Salomone
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.,Research Center for Prevention, Diagnosis and Treatment of Cancer (PreDiCT), University of Catania, Catania, Italy
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.,Research Center for Prevention, Diagnosis and Treatment of Cancer (PreDiCT), University of Catania, Catania, Italy
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Zhang X, Wang J, Li X, Wang D. Lysosomes contribute to radioresistance in cancer. Cancer Lett 2018; 439:39-46. [PMID: 30217567 DOI: 10.1016/j.canlet.2018.08.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 08/05/2018] [Accepted: 08/30/2018] [Indexed: 01/02/2023]
Abstract
Radiotherapy is one of the most widely used methods to treat human tumors. Efficacy is due mainly to the DNA damage it induces. However, tumor cells often develop responsive adaptiveness to radiation treatment to survive, which leads to radioresistance. Many cellular processes, such as DNA damage repair, cell cycle arrest and autophagy, are involved in the development of radioresistance. Few interventions to combat radioresistance exist to date. In recent years, the lysosome has been reported to contribute to chemo- and radioresistance. Although for many years, the lysosome was known as an organelle that degrades waste materials, we now know it is also involved in important signaling pathways regulating cellular homeostasis. Although an increasing number of preclinical studies show that lysosome-related factors promote radioresistance, the role of the lysosome in radioresistance has not been systematically demonstrated. Here, we combine an updated understanding of lysosomes with a review of current studies regarding the role of lysosomes in mediating radioresistance.
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Affiliation(s)
- Xin Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, PR China
| | - Jian Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, PR China; Department of Biomedicine, University of Bergen, 5009, Bergen, Norway
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, PR China
| | - Donghai Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, PR China.
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Bufalin suppresses the proliferation and metastasis of renal cell carcinoma by inhibiting the PI3K/Akt/mTOR signaling pathway. Oncol Lett 2018; 16:3867-3873. [PMID: 30128000 PMCID: PMC6096133 DOI: 10.3892/ol.2018.9111] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 07/03/2018] [Indexed: 12/31/2022] Open
Abstract
Bufalin, one of the active ingredients of the Chinese drug Chan su, exhibits significant antitumor activity against various cancer types. However, the role of bufalin in renal cell carcinoma (RCC) remains unclear. In the present study, it was demonstrated that bufalin inhibited cell proliferation, blocked the cell cycle in the G2/M phase, and reduced the metastasis of human RCC ACHN cells via the upregulation of p21waf/cip1 and E-cadherin and the downregulation of cyclin dependent kinase 1, cyclin B1, N-cadherin, and hypoxia-inducible factor-1α (HIF-1α). Further mechanistic study revealed that bufalin reduced the expression of phosphorylated (phospho)-Akt and phospho-mammalian target of rapamycin (mTOR). Moreover, HIF-1α expression may be regulated through the inhibition of the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/mTOR signaling pathway. Thus, the present results suggest that bufalin induces cell cycle arrest and suppresses metastasis; this process may be associated with the PI3K/Akt/mTOR signaling pathway. Accordingly, it is suggested that bufalin is a therapeutic agent for RCC.
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Raimondo L, D'Amato V, Servetto A, Rosa R, Marciano R, Formisano L, Di Mauro C, Orsini RC, Cascetta P, Ciciola P, De Maio AP, Di Renzo MF, Cosconati S, Bruno A, Randazzo A, Napolitano F, Montuori N, Veneziani BM, De Placido S, Bianco R. Everolimus induces Met inactivation by disrupting the FKBP12/Met complex. Oncotarget 2018; 7:40073-40084. [PMID: 27223077 PMCID: PMC5129993 DOI: 10.18632/oncotarget.9484] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 04/26/2016] [Indexed: 12/03/2022] Open
Abstract
Inhibition of the mechanistic target of rapamycin (mTOR) is a promising treatment strategy for several cancer types. Rapamycin derivatives such as everolimus are allosteric mTOR inhibitors acting through interaction with the intracellular immunophilin FKBP12, a prolyl isomerase with different cellular functions. Although mTOR inhibitors have significantly improved survival of different cancer patients, resistance and lack of predictive factors of response remain unsolved issues. To elucidate the mechanisms of resistance to everolimus, we evaluated Met activation in everolimus-sensitive/resistant human cancer cells, in vitro and in vivo. Biochemical and computational analyses were performed. Everolimus-resistant cells were xenografted into mice (10/group) and studied for their response to everolimus and Met inhibitors. The statistical significance of the in vitro results was evaluated by Student's t test. Everolimus reduced Met phosphorylation in everolimus-sensitive cells. This event was mediated by the formation of a Met-FKBP12 complex, which in turn is disrupted by everolimus. Aberrant Met activation in everolimus-resistant cells and overexpression of wild-type/mutant Met caused everolimus resistance. Pharmacological inhibition and RNA silencing of Met are effective in condition of everolimus resistance (P<0.01). In mice xenografted with everolimus-resistant cells, the combination of everolimus with the Met inhibitor PHA665752 reduced tumor growth and induced a statistically significant survival advantage (combination vs control P=0.0005). FKBP12 binding is required for full Met activation and everolimus can inhibit Met. Persistent Met activation might sustain everolimus resistance. These results identify a novel everolimus mechanism of action and suggest the development of clinical strategies based on Met inhibitors in everolimus-resistant cancers.
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Affiliation(s)
- Lucia Raimondo
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Valentina D'Amato
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Alberto Servetto
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Roberta Rosa
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Roberta Marciano
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Luigi Formisano
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Concetta Di Mauro
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Roberta Clara Orsini
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Priscilla Cascetta
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Paola Ciciola
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Ana Paula De Maio
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Maria Flavia Di Renzo
- Department of Oncology, University of Turin, Candiolo Cancer Institute - FPO IRCCS, Turin, Italy
| | | | - Agostino Bruno
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Filomena Napolitano
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Nunzia Montuori
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Bianca Maria Veneziani
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Naples, Italy
| | - Sabino De Placido
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Roberto Bianco
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
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50
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Czapiewski P, Kunc M, Haybaeck J. Genetic and molecular alterations in olfactory neuroblastoma: implications for pathogenesis, prognosis and treatment. Oncotarget 2018; 7:52584-52596. [PMID: 27256979 PMCID: PMC5239575 DOI: 10.18632/oncotarget.9683] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 05/19/2016] [Indexed: 12/11/2022] Open
Abstract
Olfactory neuroblastoma (ONB, Esthesioneuroblastoma) is an infrequent neoplasm of the head and neck area derived from olfactory neuroepithelium. Despite relatively good prognosis a subset of patients shows recurrence, progression and/or metastatic disease, which requires additional treatment. However, neither prognostic nor predictive factors are well specified. Thus, we performed a literature search for the currently available data on disturbances in molecular pathways, cytogenetic changes and results gained by next generation sequencing (NGS) approaches in ONB in order to gain an overview of genetic alterations which might be useful for treating patients with ONB. We present briefly ONB molecular pathogenesis and propose potential therapeutic targets and prognostic factors. Possible therapeutic targets in ONB include: receptor tyrosine kinases (c-kit, PDGFR-b, TrkB; EGFR); somatostatin receptor; FGF-FGFR1 signaling; Sonic hedgehog pathway; apoptosis-related pathways (Bcl-2, TRAIL) and neoangiogenesis (VEGF; KDR). Furthermore, we compare high- and low-grade ONB, and describe its frequent mimicker: sinonasal neuroendocrine carcinoma. ONB is often a therapeutic challenge, so our goal should be the implementation of acquired knowledge into clinical practice, especially at pretreated, recurrent and metastatic stages. Moreover, the multicenter molecular studies are needed to increase the amount of available data.
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Affiliation(s)
- Piotr Czapiewski
- Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Poland
| | - Michał Kunc
- Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Johannes Haybaeck
- Department of Neuropathology, Institute of Pathology, Medical University of Graz, Graz, Austria
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