1
|
Nasr MM, Lynch CC. How circulating tumor cluster biology contributes to the metastatic cascade: from invasion to dissemination and dormancy. Cancer Metastasis Rev 2023; 42:1133-1146. [PMID: 37442876 PMCID: PMC10713810 DOI: 10.1007/s10555-023-10124-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023]
Abstract
Circulating tumor cells (CTCs) are known to be prognostic for metastatic relapse and are detected in patients as solitary cells or cell clusters. Circulating tumor cell clusters (CTC clusters) have been observed clinically for decades and are of significantly higher metastatic potential compared to solitary CTCs. Recent studies suggest distinct differences in CTC cluster biology regarding invasion and survival in circulation. However, differences regarding dissemination, dormancy, and reawakening require more investigations compared to solitary CTCs. Here, we review the current state of CTC cluster research and consider their clinical significance. In addition, we discuss the concept of collective invasion by CTC clusters and molecular evidence as to how cluster survival in circulation compares to that of solitary CTCs. Molecular differences between solitary and clustered CTCs during dormancy and reawakening programs will also be discussed. We also highlight future directions to advance our current understanding of CTC cluster biology.
Collapse
Affiliation(s)
- Mostafa M Nasr
- Tumor Biology Department, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA
- Cancer Biology Ph.D. Program, University of South Florida, Tampa, FL, USA
| | - Conor C Lynch
- Tumor Biology Department, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA.
| |
Collapse
|
2
|
Haagsma J, Kolendowski B, Buensuceso A, Valdes YR, DiMattia GE, Shepherd TG. Gain-of-function p53 R175H blocks apoptosis in a precursor model of ovarian high-grade serous carcinoma. Sci Rep 2023; 13:11424. [PMID: 37452087 PMCID: PMC10349050 DOI: 10.1038/s41598-023-38609-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023] Open
Abstract
Ovarian high-grade serous carcinoma (HGSC) is a highly lethal malignancy for which early detection is a challenge and treatment of late-stage disease is ineffective. HGSC initiation involves exfoliation of fallopian tube epithelial (FTE) cells which form multicellular clusters called spheroids that colonize and invade the ovary. HGSC contains universal mutation of the tumour suppressor gene TP53. However, not all TP53 mutations are the same, as specific p53 missense mutants contain gain-of-function (GOF) properties that drive tumour formation. Additionally, the role of GOF p53 in spheroid-mediated spread is poorly understood. In this study, we developed and characterized an in vitro model of HGSC based on mutation of TP53 in mouse oviductal epithelial cells (OVE). We discovered increased bulk spheroid survival and increased anchorage-independent growth in OVE cells expressing the missense mutant p53R175H compared to OVE parental and Trp53ko cells. Transcriptomic analysis on spheroids identified decreased apoptosis signaling due to p53R175H. Further assessment of the apoptosis pathway demonstrated decreased expression of intrinsic and extrinsic apoptosis signaling molecules due to Trp53 deletion and p53R175H, but Caspase-3 activation was only decreased in spheroids with p53R175H. These results highlight this model as a useful tool for discovering early HGSC transformation mechanisms and uncover a potential anti-apoptosis GOF mechanism of p53R175H.
Collapse
Affiliation(s)
- Jacob Haagsma
- The Mary and John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON, Canada
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Bart Kolendowski
- The Mary and John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON, Canada
| | - Adrian Buensuceso
- The Mary and John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON, Canada
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Yudith Ramos Valdes
- The Mary and John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON, Canada
| | - Gabriel E DiMattia
- The Mary and John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON, Canada
- Department of Oncology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Trevor G Shepherd
- The Mary and John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON, Canada.
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.
- Department of Oncology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.
- Department of Obstetrics and Gynaecology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.
- London Regional Cancer Program, 790 Commissioners Road East, Room A4-836, London, ON, N6A 4L6, Canada.
| |
Collapse
|
3
|
Tomas E, Shepherd TG. Insights into high-grade serous carcinoma pathobiology using three-dimensional culture model systems. J Ovarian Res 2023; 16:70. [PMID: 37038202 PMCID: PMC10088149 DOI: 10.1186/s13048-023-01145-x] [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: 10/20/2022] [Accepted: 03/28/2023] [Indexed: 04/12/2023] Open
Abstract
Epithelial ovarian cancer (EOC) research has become more complex as researchers try to fully understand the metastatic process. Especially as we delve into the concept of tumour dormancy, where cells transition between proliferative and dormant states to survive during disease progression. Thus, the in vitro models used to conduct this research need to reflect this vast biological complexity. The innovation behind the many three-dimensional (3D) spheroid models has been refined to easily generate reproducible spheroids so that we may understand the various molecular signaling changes of cells during metastasis and determine therapeutic efficacy of treatments. This ingenuity was then used to develop the 3D ex vivo patient-derived organoid model, as well as multiple co-culture model systems for EOC research. Although, researchers need to continue to push the boundaries of these current models for in vitro and even in vivo work in the future. In this review, we describe the 3D models already in use, where these models can be developed further and how we can use these models to gain the most knowledge on EOC pathogenesis and discover new targeted therapies.
Collapse
Affiliation(s)
- Emily Tomas
- London Regional Cancer Program, The Mary & John Knight Translational Ovarian Cancer Research Unit, 790 Commissioners Rd. E. Room A4-836, London, ON, N6A 4L6, Canada
- Department of Anatomy & Cell Biology, Western University, London, ON, Canada
| | - Trevor G Shepherd
- London Regional Cancer Program, The Mary & John Knight Translational Ovarian Cancer Research Unit, 790 Commissioners Rd. E. Room A4-836, London, ON, N6A 4L6, Canada.
- Department of Anatomy & Cell Biology, Western University, London, ON, Canada.
- Department of Obstetrics & Gynaecology, Western University, London, ON, Canada.
- Department of Oncology, Western University, London, ON, Canada.
| |
Collapse
|
4
|
Alhasan B, Mikeladze M, Guzhova I, Margulis B. Autophagy, molecular chaperones, and unfolded protein response as promoters of tumor recurrence. Cancer Metastasis Rev 2023; 42:217-254. [PMID: 36723697 DOI: 10.1007/s10555-023-10085-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 01/16/2023] [Indexed: 02/02/2023]
Abstract
Tumor recurrence is a paradoxical function of a machinery, whereby a small proportion of the cancer cell population enters a resistant, dormant state, persists long-term in this condition, and then transitions to proliferation. The dormant phenotype is typical of cancer stem cells, tumor-initiating cells, disseminated tumor cells, and drug-tolerant persisters, which all demonstrate similar or even equivalent properties. Cancer cell dormancy and its conversion to repopulation are regulated by several protein signaling systems that inhibit or induce cell proliferation and provide optimal interrelations between cancer cells and their special niche; these systems act in close connection with tumor microenvironment and immune response mechanisms. During dormancy and reawakening periods, cell proteostasis machineries, autophagy, molecular chaperones, and the unfolded protein response are recruited to protect refractory tumor cells from a wide variety of stressors and therapeutic insults. Proteostasis mechanisms functionally or even physically interfere with the main regulators of tumor relapse, and the significance of these interactions and implications in the tumor recurrence phases are discussed in this review.
Collapse
Affiliation(s)
- Bashar Alhasan
- Institute of Cytology, Russian Academy of Sciences, Tikhoretsky Ave. 4, 194064, St. Petersburg, Russia.
| | - Marina Mikeladze
- Institute of Cytology, Russian Academy of Sciences, Tikhoretsky Ave. 4, 194064, St. Petersburg, Russia
| | - Irina Guzhova
- Institute of Cytology, Russian Academy of Sciences, Tikhoretsky Ave. 4, 194064, St. Petersburg, Russia
| | - Boris Margulis
- Institute of Cytology, Russian Academy of Sciences, Tikhoretsky Ave. 4, 194064, St. Petersburg, Russia
| |
Collapse
|
5
|
Dormancy, stemness, and therapy resistance: interconnected players in cancer evolution. Cancer Metastasis Rev 2023; 42:197-215. [PMID: 36757577 PMCID: PMC10014678 DOI: 10.1007/s10555-023-10092-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 01/26/2023] [Indexed: 02/10/2023]
Abstract
The biological complexity of cancer represents a tremendous clinical challenge, resulting in the frequent failure of current treatment protocols. In the rapidly evolving scenario of a growing tumor, anticancer treatments impose a drastic perturbation not only to cancer cells but also to the tumor microenvironment, killing a portion of the cells and inducing a massive stress response in the survivors. Consequently, treatments can act as a double-edged sword by inducing a temporary response while laying the ground for therapy resistance and subsequent disease progression. Cancer cell dormancy (or quiescence) is a central theme in tumor evolution, being tightly linked to the tumor's ability to survive cytotoxic challenges, metastasize, and resist immune-mediated attack. Accordingly, quiescent cancer cells (QCCs) have been detected in virtually all the stages of tumor development. In recent years, an increasing number of studies have focused on the characterization of quiescent/therapy resistant cancer cells, unveiling QCCs core transcriptional programs, metabolic plasticity, and mechanisms of immune escape. At the same time, our partial understanding of tumor quiescence reflects the difficulty to identify stable QCCs biomarkers/therapeutic targets and to control cancer dormancy in clinical settings. This review focuses on recent discoveries in the interrelated fields of dormancy, stemness, and therapy resistance, discussing experimental evidences in the frame of a nonlinear dynamics approach, and exploring the possibility that tumor quiescence may represent not only a peril but also a potential therapeutic resource.
Collapse
|
6
|
Tau S, Miller TW. The role of cancer cell bioenergetics in dormancy and drug resistance. Cancer Metastasis Rev 2023; 42:87-98. [PMID: 36696004 PMCID: PMC10233409 DOI: 10.1007/s10555-023-10081-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 01/11/2023] [Indexed: 01/26/2023]
Abstract
While anti-cancer drug treatments are often effective for the clinical management of cancer, these treatments frequently leave behind drug-tolerant persister cancer cells that can ultimately give rise to recurrent disease. Such persistent cancer cells can lie dormant for extended periods of time, going undetected by conventional clinical means. Understanding the mechanisms that such dormant cancer cells use to survive, and the mechanisms that drive emergence from dormancy, is critical to the development of improved therapeutic strategies to prevent and manage disease recurrence. Cancer cells often exhibit metabolic alterations compared to their non-transformed counterparts. An emerging body of evidence supports the notion that dormant cancer cells also have unique metabolic adaptations that may offer therapeutically targetable vulnerabilities. Herein, we review mechanisms through which cancer cells metabolically adapt to persist during drug treatments and develop drug resistance. We also highlight emerging therapeutic strategies to target dormant cancer cells via their metabolic features.
Collapse
Affiliation(s)
- Steven Tau
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Dartmouth Cancer Center, Lebanon, NH, USA
| | - Todd W Miller
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Dartmouth Cancer Center, Lebanon, NH, USA.
- Dartmouth-Hitchcock Medical Center, One Medical Center Drive, HB-7936, Lebanon, NH 03756, USA.
| |
Collapse
|
7
|
Zhang J, Li Y, Zou J, Lai CT, Zeng T, Peng J, Zou WD, Cao B, Liu D, Zhu LY, Li H, Li YK. Comprehensive analysis of the glutathione S-transferase Mu (GSTM) gene family in ovarian cancer identifies prognostic and expression significance. Front Oncol 2022; 12:968547. [PMID: 35965498 PMCID: PMC9366399 DOI: 10.3389/fonc.2022.968547] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/04/2022] [Indexed: 12/11/2022] Open
Abstract
Background Ovarian cancer (OC) is one of the most common types of gynecologic tumor over the world. The Glutathione S-transferase Mu (GSTM) has five members, including GSTM1-5. These GSTMs is involved in cell metabolism and detoxification, but their role in OC remains unknown. Methods Data from multiple public databases associated with OC and GSTMs were collected. Expression, prognosis, function enrichment, immune infiltration, stemness index, and drug sensitivity analysis was utilized to identify the roles of GSTMs in OC progression. RT-qPCR analysis confirmed the effect of AICAR, AT-7519, PHA-793887 and PI-103 on the mRNA levels of GSTM3/4. Results GSTM1-5 were decreased in OC samples compared to normal ovary samples. GSTM1/5 were positively correlated with OC prognosis, but GSTM3 was negatively correlated with OC prognosis. Function enrichment analysis indicated GSTMs were involved in glutathione metabolism, drug metabolism, and drug resistance. Immune infiltration analysis indicated GSTM2/3/4 promoted immune escape in OC. GSTM5 was significantly correlated with OC stemness index. GSTM3/4 were remarkedly associated with OC chemoresistance, especially in AICAR, AT-7519, PHA-793887 and PI-103. Conclusion GSTM3 was negatively correlated with OC prognosis, and associated with OC chemoresistance and immune escape. This gene may serve as potential prognostic biomarkers and therapeutic target for OC patients.
Collapse
Affiliation(s)
- Juan Zhang
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
| | - Yan Li
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
| | - Juan Zou
- Hunan Province Key Laboratory of Tumor Cellular and Molecular Pathology, Cancer Research Institute, University of South China, Hengyang, China
| | - Chun-tian Lai
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
| | - Tian Zeng
- Hunan Province Key Laboratory of Tumor Cellular and Molecular Pathology, Cancer Research Institute, University of South China, Hengyang, China
| | - Juan Peng
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
| | - Wen-da Zou
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
| | - Bei Cao
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
| | - Dan Liu
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
| | - Li-yu Zhu
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
| | - Hui Li
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
- *Correspondence: Hui Li, ; Yu-kun Li,
| | - Yu-kun Li
- Department of Assisted Reproductive Centre, Zhuzhou central hospital, Xiangya hospital Zhuzhou central south university, Central south university, Zhuzhou, China
- Hunan Province Key Laboratory of Tumor Cellular and Molecular Pathology, Cancer Research Institute, University of South China, Hengyang, China
- *Correspondence: Hui Li, ; Yu-kun Li,
| |
Collapse
|
8
|
S SK, Swamy SN, Devaraj VR, Premalatha CS, Pallavi VR, Chandrashekar Sagar BK, Shinde DD, Gawari R. Metabolic Reprogramming and Lipophagy Mediates Survival of Ascites Derived Metastatic Ovarian Cancer Cells. Asian Pac J Cancer Prev 2022; 23:1699-1709. [PMID: 35633555 PMCID: PMC9587889 DOI: 10.31557/apjcp.2022.23.5.1699] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 05/09/2022] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE The study was aimed at understanding the survival of metastatic ovarian cancer spheroids in the malignant ascites microenvironment. METHODS All the assays were performed using aseptically collected patient samples. The cells were characterized for the expression of ovarian and cancer stem cell markers using immunocytochemistry. The presence of lipid in the primary metastatic cancer spheroids were confirmed by neutral fat staining using Oil Red-O and transmission electron microscopy. The mRNA expression of autophagy and lipid metabolism genes was analyzed using RT-PCR. The lipid content was analyzed using lipidomics analysis. Etomoxir and chloroquine were used to study the effect of inhibition of autophagy in the metastatic cells. The data were analyzed using appropriate statistical tools and a p-value <0.05 was considered to be statistically significant. RESULTS Metastatic ovarian cancer spheroids exhibit cancer stem like properties and undergo a metabolic reprogramming when they disseminate from the primary tumor. We report here the accumulation of numerous cytoplasmic lipid droplets and lipophagic vesicles in the metastatic cells in contrast to their primary tumors. In addition we also report that these cells depend on lipophagy for the utilization of lipids rather than the conventional lipolytic pathway. The lipidomics analysis data reveals that the metastatic cells possess high levels of unsaturated fatty acids. We have also reported the occurrence of distinct accumulation of multiple nuclei in the patient derived metastatic cells. Inhibition of beta-oxidation and autophagic machinery using etomoxir and chloroquine resulted in cell death suggesting a potential mode to suppress metastatic cancer cells. CONCLUSION Metabolic reprogramming is a characteristic feature of the metastatic ovarian cancer cells that are persisting in the malignant ascites. Targeting of the metastatic by gaining an insight into the various metabolic and molecular changes that occur in the metastatic niche provides a promising therapeutic approach in management of the disease.
Collapse
Affiliation(s)
- Sandeep Kumar S
- Department of Biochemistry, Kidwai Memorial Institute of Oncology Dr.M.H.Marigowda Road Bangalore, India.
| | - Shalini N Swamy
- Department of Biochemistry, Kidwai Memorial Institute of Oncology Dr.M.H.Marigowda Road Bangalore, India.
| | | | - Chennagiri S Premalatha
- Department of Pathology, Kidwai Memorial Institute of Oncology Dr.M.H.Marigowda raod Bangalore India.
| | - V R Pallavi
- Department of Gynecologic Oncology, Kidwai Memorial Institute of Oncology, Bangalore, India.
| | - B K Chandrashekar Sagar
- Department of Neuropathology, National Institute of Mental Health and Neuro Sciences, Bangalore, India.
| | - Dhananjay D Shinde
- Department of Pathology and Microbiology, University of Nebraska Medical Centre, Omaha, NE, USA.
| | - Ramesh Gawari
- Department of Biochemistry, Kidwai Memorial Institute of Oncology Dr.M.H.Marigowda Road Bangalore, India.
| |
Collapse
|
9
|
Shepherd TG, Dick FA. Principles of dormancy evident in high-grade serous ovarian cancer. Cell Div 2022; 17:2. [PMID: 35321751 PMCID: PMC8944075 DOI: 10.1186/s13008-022-00079-y] [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: 12/09/2021] [Accepted: 03/16/2022] [Indexed: 11/17/2022] Open
Abstract
In cancer, dormancy refers to a clinical state in which microscopic residual disease becomes non-proliferative and is largely refractory to chemotherapy. Dormancy was first described in breast cancer where disease can remain undetected for decades, ultimately leading to relapse and clinical presentation of the original malignancy. A long latency period can be explained by withdrawal from cell proliferation (cellular dormancy), or a balance between proliferation and cell death that retains low levels of residual disease (tumor mass dormancy). Research into cellular dormancy has revealed features that define this state. They include arrest of cell proliferation, altered cellular metabolism, and unique cell dependencies and interactions with the microenvironment. These characteristics can be shared by dormant cells derived from disparate primary disease sites, suggesting common features exist between them. High-grade serous ovarian cancer (HGSOC) disseminates to locations throughout the abdominal cavity by means of cellular aggregates called spheroids. These growth-arrested and therapy-resistant cells are a strong contributor to disease relapse. In this review, we discuss the similarities and differences between ovarian cancer cells in spheroids and dormant properties reported for other cancer disease sites. This reveals that elements of dormancy, such as cell cycle control mechanisms and changes to metabolism, may be similar across most forms of cellular dormancy. However, HGSOC-specific aspects of spheroid biology, including the extracellular matrix organization and microenvironment, are obligatorily disease site specific. Collectively, our critical review of current literature highlights places where HGSOC cell dormancy may offer a more tractable experimental approach to understand broad principles of cellular dormancy in cancer.
Collapse
Affiliation(s)
- Trevor G Shepherd
- London Regional Cancer Program, London Health Sciences Centre, London, ON, N6A 5W9, Canada.,Department of Obstetrics & Gynaecology, Western University, London, ON, N6A 5C1, Canada
| | - Frederick A Dick
- London Regional Cancer Program, London Health Sciences Centre, London, ON, N6A 5W9, Canada. .,Department of Pathology and Laboratory Medicine, Western University, London, ON, N6A 5C1, Canada. .,Children's Health Research Institute, London, ON, N6A 4V2, Canada.
| |
Collapse
|
10
|
CaMKK2 Promotes the Progression of Ovarian Carcinoma through the PI3K/PDK1/Akt Axis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:7187940. [PMID: 35309839 PMCID: PMC8933102 DOI: 10.1155/2022/7187940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/11/2022] [Accepted: 01/15/2022] [Indexed: 11/18/2022]
Abstract
Objective. To explore the functional role of Calcium/calmodulin-dependent protein kinase kinase 2 (CaMKK2) in the progression of ovarian carcinoma (OC). Methods. RT-qPCR analysis and western blot were conducted to detect the mRNA and protein expression of CaMKK2, PI3K, PDK1 and Akt in OC tissues and cells, respectively. CCK-8 assay, transwell migration assay and flow cytometry were used to measure cell proliferation, migration and apoptosis, respectively. Results. CaMKK2, PI3K, PDK1 and Akt were highly expressed in OC tissues compared with the corresponding controls. CaMKK2 knockdown significantly suppressed the mRNA and protein expression of PI3K, PDK1 and Akt in HO8910 and OV90 cells. Moreover, CaMKK2 knockdown could dramatically repress cell proliferation, migration, and markedly elevate cell apoptosis in HO8910 and OV90 cells. Conclusions. CaMKK2 played a promotion role in OC progression via activating the PI3K/PDK1/Akt axis.
Collapse
|
11
|
Loss of LKB1-NUAK1 signalling enhances NF-κB activity in a spheroid model of high-grade serous ovarian cancer. Sci Rep 2022; 12:3011. [PMID: 35194062 PMCID: PMC8863794 DOI: 10.1038/s41598-022-06796-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 02/01/2022] [Indexed: 01/31/2023] Open
Abstract
High-grade serous ovarian cancer (HGSOC) is an aggressive malignancy often diagnosed at an advanced stage. Although most HGSOC patients respond initially to debulking surgery combined with cytotoxic chemotherapy, many ultimately relapse with platinum-resistant disease. Thus, improving outcomes requires new ways of limiting metastasis and eradicating residual disease. We identified previously that Liver kinase B1 (LKB1) and its substrate NUAK1 are implicated in EOC spheroid cell viability and are required for efficient metastasis in orthotopic mouse models. Here, we sought to identify additional signalling pathways altered in EOC cells due to LKB1 or NUAK1 loss-of-function. Transcriptome analysis revealed that inflammatory signalling mediated by NF-κB transcription factors is hyperactive due to LKB1-NUAK1 loss in HGSOC cells and spheroids. Upregulated NF-κB signalling due to NUAK1 loss suppresses reactive oxygen species (ROS) production and sustains cell survival in spheroids. NF-κB signalling is also activated in HGSOC precursor fallopian tube secretory epithelial cell spheroids, and is further enhanced by NUAK1 loss. Finally, immunohistochemical analysis of OVCAR8 xenograft tumors lacking NUAK1 displayed increased RelB expression and nuclear staining. Our results support the idea that NUAK1 and NF-κB signalling pathways together regulate ROS and inflammatory signalling, supporting cell survival during each step of HGSOC pathogenesis. We propose that their combined inhibition may be efficacious as a novel therapeutic strategy for advanced HGSOC.
Collapse
|
12
|
Metabolic Features of Tumor Dormancy: Possible Therapeutic Strategies. Cancers (Basel) 2022; 14:cancers14030547. [PMID: 35158815 PMCID: PMC8833651 DOI: 10.3390/cancers14030547] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/17/2022] [Accepted: 01/19/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Tumor recurrence still represents a major clinical challenge for cancer patients. Cancer cells may undergo a dormant state for long times before re-emerging. Both intracellular- and extracellular-driven pathways are involved in maintaining the dormant state and the subsequent awakening, with a mechanism that is still mostly unknown. In this scenario, cancer metabolism is emerging as a critical driver of tumor progression and dissemination and have gained increasing attention in cancer research. This review focuses on the metabolic adaptations characterizing the dormant phenotype and supporting tumor re-growth. Deciphering the metabolic adaptation sustaining tumor dormancy may pave the way for novel therapeutic approaches to prevent tumor recurrence based on combined metabolic drugs. Abstract Tumor relapse represents one of the main obstacles to cancer treatment. Many patients experience cancer relapse even decades from the primary tumor eradication, developing more aggressive and metastatic disease. This phenomenon is associated with the emergence of dormant cancer cells, characterized by cell cycle arrest and largely insensitive to conventional anti-cancer therapies. These rare and elusive cells may regain proliferative abilities upon the induction of cell-intrinsic and extrinsic factors, thus fueling tumor re-growth and metastasis formation. The molecular mechanisms underlying the maintenance of resistant dormant cells and their awakening are intriguing but, currently, still largely unknown. However, increasing evidence recently underlined a strong dependency of cell cycle progression to metabolic adaptations of cancer cells. Even if dormant cells are frequently characterized by a general metabolic slowdown and an increased ability to cope with oxidative stress, different factors, such as extracellular matrix composition, stromal cells influence, and nutrient availability, may dictate specific changes in dormant cells, finally resulting in tumor relapse. The main topic of this review is deciphering the role of the metabolic pathways involved in tumor cells dormancy to provide new strategies for selectively targeting these cells to prevent fatal recurrence and maximize therapeutic benefit.
Collapse
|
13
|
Alhasan BA, Gordeev SA, Knyazeva AR, Aleksandrova KV, Margulis BA, Guzhova IV, Suvorova II. The mTOR Pathway in Pluripotent Stem Cells: Lessons for Understanding Cancer Cell Dormancy. MEMBRANES 2021; 11:858. [PMID: 34832087 PMCID: PMC8620939 DOI: 10.3390/membranes11110858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 11/16/2022]
Abstract
Currently, the success of targeted anticancer therapies largely depends on the correct understanding of the dormant state of cancer cells, since it is increasingly regarded to fuel tumor recurrence. The concept of cancer cell dormancy is often considered as an adaptive response of cancer cells to stress, and, therefore, is limited. It is possible that the cancer dormant state is not a privilege of cancer cells but the same reproductive survival strategy as diapause used by embryonic stem cells (ESCs). Recent advances reveal that high autophagy and mTOR pathway reduction are key mechanisms contributing to dormancy and diapause. ESCs, sharing their main features with cancer stem cells, have a delicate balance between the mTOR pathway and autophagy activity permissive for diapause induction. In this review, we discuss the functioning of the mTOR signaling and autophagy in ESCs in detail that allows us to deepen our understanding of the biology of cancer cell dormancy.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Irina I. Suvorova
- Institute of Cytology, Russian Academy of Sciences, 194064 St. Petersburg, Russia; (B.A.A.); (S.A.G.); (A.R.K.); (K.V.A.); (B.A.M.); (I.V.G.)
| |
Collapse
|
14
|
Koseoglu H, Celebi A, Galamiyeva G, Dalay N, Ozkardes H, Buyru N. No Tumor Suppressor Role for LKB1 in Prostate Cancer. DNA Cell Biol 2021; 40:1222-1229. [PMID: 34370601 DOI: 10.1089/dna.2021.0274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
To elucidate the pathogenesis of prostate diseases, following in silico analysis, the LKB1 gene was selected for further investigation. The LKB1 gene has been associated with poor prognosis and is frequently mutated in different types of cancers. In this study, 50 benign prostatic hyperplasia (BPH) and 57 prostate cancer (PCa) tissues, including matched normal tissue for the patients, were analyzed by qRT-PCR and DNA sequencing for LKB1 expression and the mutation profile, respectively. Expression of LKB1 was increased in 60.7% of the PCa tissues compared with noncancerous tissue samples (p ≤ 0.001). However, LKB1 expression was lower when compared with normal tissues in BPH (p = 0.920). Four coding sequence alterations were detected in BPH. Three silent mutations were located in codons 9, 32, and 275 and a missense mutation was observed in codon 384. Six alterations were identified in the intronic regions of the LKB1 gene in both PCa and BPH. Five mutations were observed in both patient groups. A new alteration in intron 6 was observed in a patient with PCa. The LKB1 gene may be associated with benign transformations rather than the tumors in prostate pathogenesis when its expression and mutation status are considered. However, the mechanism of LKB1 in PCa needs further studies.
Collapse
Affiliation(s)
- Hikmet Koseoglu
- Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Asuman Celebi
- Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Gunay Galamiyeva
- Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Nejat Dalay
- Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hakan Ozkardes
- Department of Urology, Medical Faculty, Baskent University, Istanbul, Turkey
| | - Nur Buyru
- Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| |
Collapse
|
15
|
Zada S, Hwang JS, Ahmed M, Lai TH, Pham TM, Elashkar O, Kim DR. Cross talk between autophagy and oncogenic signaling pathways and implications for cancer therapy. Biochim Biophys Acta Rev Cancer 2021; 1876:188565. [PMID: 33992723 DOI: 10.1016/j.bbcan.2021.188565] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/05/2021] [Accepted: 05/08/2021] [Indexed: 02/07/2023]
Abstract
Autophagy is a highly conserved metabolic process involved in the degradation of intracellular components including proteins and organelles. Consequently, it plays a critical role in recycling metabolic energy for the maintenance of cellular homeostasis in response to various stressors. In cancer, autophagy either suppresses or promotes cancer progression depending on the stage and cancer type. Epithelial-mesenchymal transition (EMT) and cancer metastasis are directly mediated by oncogenic signal proteins including SNAI1, SLUG, ZEB1/2, and NOTCH1, which are functionally correlated with autophagy. In this report, we discuss the crosstalk between oncogenic signaling pathways and autophagy followed by possible strategies for cancer treatment via regulation of autophagy. Although autophagy affects EMT and cancer metastasis, the overall signaling pathways connecting cancer progression and autophagy are still illusive. In general, autophagy plays a critical role in cancer cell survival by providing a minimum level of energy via self-digestion. Thus, cancer cells face nutrient limitations and challenges under stress during EMT and metastasis. Conversely, autophagy acts as a potential cancer suppressor by degrading oncogenic proteins, which are essential for cancer progression, and by removing damaged components such as mitochondria to enhance genomic stability. Therefore, autophagy activators or inhibitors represent possible cancer therapeutics. We further discuss the regulation of autophagy-dependent degradation of oncogenic proteins and its functional correlation with oncogenic signaling pathways, with potential applications in cancer therapy.
Collapse
Affiliation(s)
- Sahib Zada
- Department of Biochemistry and Convergence Medical Sciences and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 527-27, Republic of Korea
| | - Jin Seok Hwang
- Department of Biochemistry and Convergence Medical Sciences and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 527-27, Republic of Korea
| | - Mahmoud Ahmed
- Department of Biochemistry and Convergence Medical Sciences and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 527-27, Republic of Korea
| | - Trang Huyen Lai
- Department of Biochemistry and Convergence Medical Sciences and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 527-27, Republic of Korea
| | - Trang Minh Pham
- Department of Biochemistry and Convergence Medical Sciences and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 527-27, Republic of Korea
| | - Omar Elashkar
- Department of Biochemistry and Convergence Medical Sciences and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 527-27, Republic of Korea
| | - Deok Ryong Kim
- Department of Biochemistry and Convergence Medical Sciences and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 527-27, Republic of Korea.
| |
Collapse
|
16
|
Akkoc Y, Peker N, Akcay A, Gozuacik D. Autophagy and Cancer Dormancy. Front Oncol 2021; 11:627023. [PMID: 33816262 PMCID: PMC8017298 DOI: 10.3389/fonc.2021.627023] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 01/22/2021] [Indexed: 12/13/2022] Open
Abstract
Metastasis and relapse account for the great majority of cancer-related deaths. Most metastatic lesions are micro metastases that have the capacity to remain in a non-dividing state called “dormancy” for months or even years. Commonly used anticancer drugs generally target actively dividing cancer cells. Therefore, cancer cells that remain in a dormant state evade conventional therapies and contribute to cancer recurrence. Cellular and molecular mechanisms of cancer dormancy are not fully understood. Recent studies indicate that a major cellular stress response mechanism, autophagy, plays an important role in the adaptation, survival and reactivation of dormant cells. In this review article, we will summarize accumulating knowledge about cellular and molecular mechanisms of cancer dormancy, and discuss the role and importance of autophagy in this context.
Collapse
Affiliation(s)
- Yunus Akkoc
- Koç University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey
| | - Nesibe Peker
- Koç University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey
| | - Arzu Akcay
- Yeni Yüzyıl University, School of Medicine, Private Gaziosmanpaşa Hospital, Department of Pathology, Istanbul, Turkey
| | - Devrim Gozuacik
- Koç University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey.,Koç University School of Medicine, Istanbul, Turkey.,Sabancı University Nanotechnology Research and Application Center (SUNUM), Istanbul, Turkey
| |
Collapse
|
17
|
Li TT, Zhu HB. LKB1 and cancer: The dual role of metabolic regulation. Biomed Pharmacother 2020; 132:110872. [PMID: 33068936 DOI: 10.1016/j.biopha.2020.110872] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/07/2020] [Accepted: 10/07/2020] [Indexed: 02/07/2023] Open
Abstract
Liver kinase B1 (LKB1) is an essential serine/threonine kinase frequently associated with Peutz-Jeghers syndrome (PJS). In this review, we provide an overview of the role of LKB1 in conferring protection to cancer cells against metabolic stress and promoting cancer cell survival and invasion. This carcinogenic effect contradicts the previous conclusion that LKB1 is a tumor suppressor gene. Here we try to explain the contradictory effect of LKB1 on cancer from a metabolic perspective. Upon deletion of LKB1, cancer cells experience increased energy as well as oxidative stress, thereby causing genomic instability. Meanwhile, mutated LKB1 cooperates with other metabolic regulatory genes to promote metabolic reprogramming that subsequently facilitates adaptation to strong metabolic stress, resulting in development of a more aggressive malignant phenotype. We aim to specifically discuss the contradictory role of LKB1 in cancer by reviewing the mechanism of LKB1 with an emphasis on metabolic stress and metabolic reprogramming.
Collapse
Affiliation(s)
- Ting-Ting Li
- Department of Gynecology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
| | - Hai-Bin Zhu
- Department of Gynecology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China.
| |
Collapse
|
18
|
Metabolic Constrains Rule Metastasis Progression. Cells 2020; 9:cells9092081. [PMID: 32932943 PMCID: PMC7563739 DOI: 10.3390/cells9092081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023] Open
Abstract
Metastasis formation accounts for the majority of tumor-associated deaths and consists of different steps, each of them being characterized by a distinctive adaptive phenotype of the cancer cells. Metabolic reprogramming represents one of the main adaptive phenotypes exploited by cancer cells during all the main steps of tumor and metastatic progression. In particular, the metabolism of cancer cells evolves profoundly through all the main phases of metastasis formation, namely the metastatic dissemination, the metastatic colonization of distant organs, the metastatic dormancy, and ultimately the outgrowth into macroscopic lesions. However, the metabolic reprogramming of metastasizing cancer cells has only recently become the subject of intense study. From a clinical point of view, the latter steps of the metastatic process are very important, because patients often undergo surgical removal of the primary tumor when cancer cells have already left the primary tumor site, even though distant metastases are not clinically detectable yet. In this scenario, to precisely elucidate if and how metabolic reprogramming drives acquisition of cancer-specific adaptive phenotypes might pave the way to new therapeutic strategies by combining chemotherapy with metabolic drugs for better cancer eradication. In this review we discuss the latest evidence that claim the importance of metabolic adaptation for cancer progression.
Collapse
|
19
|
Fritz JL, Collins O, Saxena P, Buensuceso A, Ramos Valdes Y, Francis KE, Brown KR, Larsen B, Colwill K, Gingras AC, Rottapel R, Shepherd TG. A novel role for NUAK1 in promoting ovarian cancer metastasis through regulation of fibronectin production in spheroids. Cancers (Basel) 2020; 12:cancers12051250. [PMID: 32429240 PMCID: PMC7280971 DOI: 10.3390/cancers12051250] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 12/13/2022] Open
Abstract
Epithelial ovarian cancer (EOC) has a unique mode of metastasis, where cells shed from the primary tumour, form aggregates called spheroids to evade anoikis, spread through the peritoneal cavity, and adhere to secondary sites. We previously showed that the master kinase Liver kinase B1 (LKB1) is required for EOC spheroid viability and metastasis. We have identified novel (nua) kinase 1 (NUAK1) as a top candidate LKB1 substrate in EOC cells and spheroids using a multiplex inhibitor beads-mass spectrometry approach. We confirmed that LKB1 maintains NUAK1 phosphorylation and promotes its stabilization. We next investigated NUAK1 function in EOC cells. Ectopic NUAK1-overexpressing EOC cell lines had increased adhesion, whereas the reverse was seen in OVCAR8-NUAK1KO cells. In fact, cells with NUAK1 loss generate spheroids with reduced integrity, leading to increased cell death after long-term culture. Following transcriptome analysis, we identified reduced enrichment for cell interaction gene expression pathways in OVCAR8-NUAK1KO spheroids. In fact, the FN1 gene, encoding fibronectin, exhibited a 745-fold decreased expression in NUAK1KO spheroids. Fibronectin expression was induced during native spheroid formation, yet this was completely lost in NUAK1KO spheroids. Co-incubation with soluble fibronectin restored the compact spheroid phenotype to OVCAR8-NUAK1KO cells. In a xenograft model of intraperitoneal metastasis, NUAK1 loss extended survival and reduced fibronectin expression in tumours. Thus, we have identified a new mechanism controlling EOC metastasis, through which LKB1-NUAK1 activity promotes spheroid formation and secondary tumours via fibronectin production.
Collapse
Affiliation(s)
- Jamie Lee Fritz
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON N6A 4L6, Canada; (J.L.F.); (O.C.); (P.S.); (A.B.); (Y.R.V.)
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 3K7, Canada
| | - Olga Collins
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON N6A 4L6, Canada; (J.L.F.); (O.C.); (P.S.); (A.B.); (Y.R.V.)
| | - Parima Saxena
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON N6A 4L6, Canada; (J.L.F.); (O.C.); (P.S.); (A.B.); (Y.R.V.)
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 3K7, Canada
| | - Adrian Buensuceso
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON N6A 4L6, Canada; (J.L.F.); (O.C.); (P.S.); (A.B.); (Y.R.V.)
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 3K7, Canada
| | - Yudith Ramos Valdes
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON N6A 4L6, Canada; (J.L.F.); (O.C.); (P.S.); (A.B.); (Y.R.V.)
| | - Kyle E. Francis
- Princess Margaret Cancer Centre, Toronto, ON M5G 2C1, Canada; (K.E.F.); (R.R.)
| | - Kevin R. Brown
- Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada;
| | - Brett Larsen
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G 1X5, Canada; (B.L.); (K.C.); (A.-C.G.)
| | - Karen Colwill
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G 1X5, Canada; (B.L.); (K.C.); (A.-C.G.)
| | - Anne-Claude Gingras
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G 1X5, Canada; (B.L.); (K.C.); (A.-C.G.)
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Robert Rottapel
- Princess Margaret Cancer Centre, Toronto, ON M5G 2C1, Canada; (K.E.F.); (R.R.)
| | - Trevor G. Shepherd
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, ON N6A 4L6, Canada; (J.L.F.); (O.C.); (P.S.); (A.B.); (Y.R.V.)
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 3K7, Canada
- Department of Obstetrics & Gynaecology, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 4L6, Canada
- Department of Oncology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, ON N6A 4L6, Canada
- Correspondence: ; Tel.: +1-519-685-8500 (ext. 56347)
| |
Collapse
|
20
|
Laski J, Singha B, Wang X, Valdés YR, Collins O, Shepherd TG. Activated CAMKKβ-AMPK signaling promotes autophagy in a spheroid model of ovarian tumour metastasis. J Ovarian Res 2020; 13:58. [PMID: 32393385 PMCID: PMC7216359 DOI: 10.1186/s13048-020-00660-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 05/04/2020] [Indexed: 02/08/2023] Open
Abstract
Background A hallmark of epithelial ovarian cancer (EOC) metastasis is the process of spheroid formation, whereby tumour cells aggregate into 3D structures while in suspension in the peritoneal cavity. EOC spheroids are subjected to bioenergetic stress, thereby activating AMP-activated protein kinase (AMPK) signaling to enter a metabolically quiescent state, which can facilitate cell survival under nutrient-limiting conditions. Independently, we have also demonstrated that EOC spheroids induce autophagy, a process that degrades and recycles intracellular components to restore energy and metabolites. Herein, we sought to examine whether AMPK controls autophagy induction as a cell survival mechanism in EOC spheroids. Results We observed a co-ordinate increase in phosphorylated AMPK and the autophagy marker LC3-II during EOC spheroid formation. Reduced AMPK expression by siRNA-mediated knockdown of PRKAA1 and PRKAA2 blocked autophagic flux in EOC spheroids as visualized by fluorescence microscopy using the mCherry-eGFP-LC3B reporter. A complementary approach using pharmacologic agents Compound C and CAMKKβ inhibitor STO-609 to inhibit AMPK activity both yielded a potent blockade of autophagic flux as well. However, direct activation of AMPK in EOC cells using oligomycin and metformin was insufficient to induce autophagy. STO-609 treatment of EOC spheroids resulted in reduced viability in 7 out of 9 cell lines, but with no observed effect in non-malignant FT190 cell spheroids. Conclusions Our results support the premise that CAMKKβ-mediated AMPK activity is required, at least in part, to regulate autophagy induction in EOC spheroids and support cell viability in this in vitro model of EOC metastasis.
Collapse
Affiliation(s)
- Jeremi Laski
- The Mary & John Knight Translational Ovarian Cancer Research Unit, Lawson Health Research Institute, London, ON, Canada.,Departments of Anatomy & Cell Biology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Bipradeb Singha
- The Mary & John Knight Translational Ovarian Cancer Research Unit, Lawson Health Research Institute, London, ON, Canada.,Departments of Anatomy & Cell Biology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Xu Wang
- The Mary & John Knight Translational Ovarian Cancer Research Unit, Lawson Health Research Institute, London, ON, Canada.,West China School of Medicine, Chengdu, Sichuan, China
| | - Yudith Ramos Valdés
- The Mary & John Knight Translational Ovarian Cancer Research Unit, Lawson Health Research Institute, London, ON, Canada
| | - Olga Collins
- The Mary & John Knight Translational Ovarian Cancer Research Unit, Lawson Health Research Institute, London, ON, Canada
| | - Trevor G Shepherd
- The Mary & John Knight Translational Ovarian Cancer Research Unit, Lawson Health Research Institute, London, ON, Canada. .,Departments of Anatomy & Cell Biology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada. .,Departments of Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada. .,Departments of Obstetrics & Gynaecology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada. .,London Regional Cancer Program, 790 Commissioners Rd. E., Room A4-836, London, ON, N6A 4L6, Canada.
| |
Collapse
|
21
|
Singha B, Laski J, Ramos Valdés Y, Liu E, DiMattia GE, Shepherd TG. Inhibiting ULK1 kinase decreases autophagy and cell viability in high-grade serous ovarian cancer spheroids. Am J Cancer Res 2020; 10:1384-1399. [PMID: 32509386 PMCID: PMC7269771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 02/27/2020] [Indexed: 06/11/2023] Open
Abstract
Metastasis in high-grade serous ovarian cancer (HGSOC) occurs through an unconventional route that involves exfoliation of cancer cells from primary tumors and peritoneal dissemination via multicellular clusters or spheroids. Previously, we demonstrated autophagy induction in HGSOC spheroids grown in vitro and in spheroids collected from ovarian cancer patient ascites; thus, we speculate that autophagy may contribute to spheroid cell survival and overall disease progression. Hence, in this study we sought to evaluate whether ULK1 (unc-51-like kinase-1), a serine-threonine kinase critical for stress-induced autophagy, is important for autophagy regulation in HGSOC spheroids. We demonstrate that HGSOC spheroids have increased ULK1 protein expression that parallels autophagy activation. ULK1 knockdown increased p62 accumulation and decreased LC3-II/I ratio in HGSOC spheroids. In addition, knocking down ATG13, a protein that regulates ULK1 activity via complex formation, phenocopied our ULK1 knockdown results. HGSOC spheroids were blocked in autophagic flux due to ULK1 and ATG13 knockdown as determined by an mCherry-eGFP-LC3B fluorescence reporter. These observations were recapitulated when HGSOC spheroids were treated with an ULK1 kinase inhibitor, MRT68921. Autophagy regulation in normal human fallopian tube epithelial FT190 cells, however, may bypass ULK1, since MRT68921 reduced viability in HGSOC spheroids but not in FT190 cells. Interestingly, ULK1 mRNA expression is negatively correlated with patient survival among stage III and stage IV serous ovarian cancer patients. As we observed using established HGSOC cell lines, cultured spheroids using our new, patient-derived HGSOC cells were also sensitive to ULK1 inhibition and demonstrated reduced cell viability to MRT68921 treatment. These results demonstrate the importance of ULK1 for autophagy induction in HGSOC spheroids and therefore justifies further evaluation of MRT68921, and other novel ULK1 inhibitors, as potential therapeutics against metastatic HGSOC.
Collapse
Affiliation(s)
- Bipradeb Singha
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer ProgramLondon, Ontario, Canada
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western UniversityLondon, Ontario, Canada
| | - Jeremi Laski
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer ProgramLondon, Ontario, Canada
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western UniversityLondon, Ontario, Canada
| | - Yudith Ramos Valdés
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer ProgramLondon, Ontario, Canada
| | - Elaine Liu
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer ProgramLondon, Ontario, Canada
| | - Gabriel E DiMattia
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer ProgramLondon, Ontario, Canada
- Department of Biochemistry, Schulich School of Medicine and Dentistry, Western UniversityLondon, Ontario, Canada
- Department of Oncology, Schulich School of Medicine and Dentistry, The University of Western OntarioLondon, Ontario, Canada
| | - Trevor G Shepherd
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer ProgramLondon, Ontario, Canada
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western UniversityLondon, Ontario, Canada
- Department of Obstetrics & Gynaecology, Schulich School of Medicine and Dentistry, Western UniversityLondon, Ontario, Canada
- Department of Oncology, Schulich School of Medicine and Dentistry, The University of Western OntarioLondon, Ontario, Canada
| |
Collapse
|
22
|
Buensuceso A, Ramos-Valdes Y, DiMattia GE, Shepherd TG. AMPK-Independent LKB1 Activity Is Required for Efficient Epithelial Ovarian Cancer Metastasis. Mol Cancer Res 2019; 18:488-500. [PMID: 31744879 DOI: 10.1158/1541-7786.mcr-19-0530] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/27/2019] [Accepted: 11/14/2019] [Indexed: 11/16/2022]
Abstract
Epithelial ovarian cancer (EOC) spreads by direct dissemination of malignant cells and multicellular clusters, known as spheroids, into the peritoneum followed by implantation and growth on abdominal surfaces. Using a spheroid model system of EOC metastasis, we discovered that Liver kinase B1 (LKB1), encoded by the STK11 gene, and its canonical substrate AMP-activated protein kinase (AMPK) are activated in EOC spheroids, yet only LKB1 is required for cell survival. We have now generated STK11-knockout cell lines using normal human FT190 cells and three EOC cell lines, OVCAR8, HeyA8, and iOvCa147. STK11KO did not affect growth and viability in adherent culture, but it decreased anchorage-independent growth of EOC cells. EOC spheroids lacking LKB1 had markedly impaired growth and viability, whereas there was no difference in normal FT190 spheroids. To test whether LKB1 loss affects EOC metastasis, we performed intraperitoneal injections of OVCAR8-, HeyA8-, and iOvCa147-STK11KO cells, and respective controls. LKB1 loss exhibited a dramatic reduction on tumor burden and metastatic potential; in particular, OVCAR8-STK11KO tumors had evidence of extensive necrosis, apoptosis, and hypoxia. Interestingly, LKB1 loss did not affect AMPKα phosphorylation in EOC spheroids and tumor xenografts, indicating that LKB1 signaling to support EOC cell survival in spheroids and metastatic tumor growth occurs via other downstream mediators. We identified the dual-specificity phosphatase DUSP4 as a commonly upregulated protein due to LKB1 loss; indeed, DUSP4 knockdown in HeyA8-STK11KO cells partially restored spheroid formation and viability. IMPLICATIONS: LKB1 possesses key tumor-promoting activity independent of downstream AMPK signaling during EOC metastasis.
Collapse
Affiliation(s)
- Adrian Buensuceso
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, Ontario, Canada.,Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Yudith Ramos-Valdes
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, Ontario, Canada
| | - Gabriel E DiMattia
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, Ontario, Canada.,Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.,Department of Obstetrics & Gynaecology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.,Department of Oncology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Trevor G Shepherd
- The Mary & John Knight Translational Ovarian Cancer Research Unit, London Regional Cancer Program, London, Ontario, Canada. .,Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.,Department of Obstetrics & Gynaecology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.,Department of Oncology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada
| |
Collapse
|
23
|
Sun Y, Li S, Yang L, Zhang D, Zhao Z, Gao J, Liu L. CDC25A Facilitates Chemo-resistance in Ovarian Cancer Multicellular Spheroids by Promoting E-cadherin Expression and Arresting Cell Cycles. J Cancer 2019; 10:2874-2884. [PMID: 31281464 PMCID: PMC6590049 DOI: 10.7150/jca.31329] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 04/20/2019] [Indexed: 12/11/2022] Open
Abstract
Peritoneal metastasis is the most common pathway for the spread of ovarian cancer and one of the major causes of cancer death. Ovarian cancer cells in ascites prefer to aggregate into the multicellular spheroids (MCS) with an inadequate response to chemotherapy. In this study, gene expression analysis implicated that ovarian cancer MCS had its unique expression pattern and the cell cycle-related pathways were prominently altered in MCS cells compared to the monolayer adherent cells. Flow cytometry and western blots confirmed the cell cycle stagnancy in MCS. Among the cell cycle-related proteins, we found that expression of CDC25A was upregulated in MCS and displayed a time-dependent decrease during the transition from MCS to monolayer adherent cells. Loss-of-function studies showed that CDC25A promoted cisplatin-resistance and paclitaxel-resistance and inhibited the drug-induced apoptosis in ovarian cancer MCS. Mechanically, CDC25A impeded cell cycle progression in MCS cells, enhanced their structure integrity, and maintained upregulation of E-cadherin in MCS cells. Accordingly, addition of NSC95397, a small molecular inhibitor of CDC25A, sensitized the ovarian cancer MCS to chemotherapeutic agents. This provides us a novel strategy for the treatment of ovarian cancer peritoneal metastasis and may help improve the overall survival of ovarian cancer patients.
Collapse
Affiliation(s)
- Yiting Sun
- Department of Medical Oncology, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Song Li
- Department of Medical Oncology, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Lu Yang
- Key Laboratory of Carcinogenesis and Translational Research, Department of Renal Cancer and Melanoma, Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Di Zhang
- Department of Medical Oncology, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Zeyi Zhao
- Department of Medical Oncology, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Jing Gao
- Department of Medical Oncology, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Lian Liu
- Department of Medical Oncology, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| |
Collapse
|
24
|
Chen HT, Liu H, Mao MJ, Tan Y, Mo XQ, Meng XJ, Cao MT, Zhong CY, Liu Y, Shan H, Jiang GM. Crosstalk between autophagy and epithelial-mesenchymal transition and its application in cancer therapy. Mol Cancer 2019; 18:101. [PMID: 31126310 PMCID: PMC6533683 DOI: 10.1186/s12943-019-1030-2] [Citation(s) in RCA: 184] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 05/15/2019] [Indexed: 02/08/2023] Open
Abstract
Autophagy is a highly conserved catabolic process that mediates degradation of pernicious or dysfunctional cellular components, such as invasive pathogens, senescent proteins, and organelles. It can promote or suppress tumor development, so it is a “double-edged sword” in tumors that depends on the cell and tissue types and the stages of tumor. The epithelial-mesenchymal transition (EMT) is a complex biological trans-differentiation process that allows epithelial cells to transiently obtain mesenchymal features, including motility and metastatic potential. EMT is considered as an important contributor to the invasion and metastasis of cancers. Thus, clarifying the crosstalk between autophagy and EMT will provide novel targets for cancer therapy. It was reported that EMT-related signal pathways have an impact on autophagy; conversely, autophagy activation can suppress or strengthen EMT by regulating various signaling pathways. On one hand, autophagy activation provides energy and basic nutrients for EMT during metastatic spreading, which assists cells to survive in stressful environmental and intracellular conditions. On the other hand, autophagy, acting as a cancer-suppressive function, is inclined to hinder metastasis by selectively down-regulating critical transcription factors of EMT in the early phases. Therefore, the inhibition of EMT by autophagy inhibitors or activators might be a novel strategy that provides thought and enlightenment for the treatment of cancer. In this article, we discuss in detail the role of autophagy and EMT in the development of cancers, the regulatory mechanisms between autophagy and EMT, the effects of autophagy inhibition or activation on EMT, and the potential applications in anticancer therapy.
Collapse
Affiliation(s)
- Hong-Tao Chen
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 2528000, Guangdong, China
| | - Hao Liu
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Min-Jie Mao
- Department of Laboratory Medicine, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yuan Tan
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 2528000, Guangdong, China.,Department of Clinical Laboratory, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xiang-Qiong Mo
- Department of Gastrointestinal Surgery, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Xiao-Jun Meng
- Department of Endocrinology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Meng-Ting Cao
- Department of Clinical Laboratory, The First Affiliated Hospital of University of South China, Hengyang, Hunan, China
| | - Chu-Yu Zhong
- Department of Geriatrics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Yan Liu
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 2528000, Guangdong, China
| | - Hong Shan
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 2528000, Guangdong, China.
| | - Guan-Min Jiang
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 2528000, Guangdong, China.
| |
Collapse
|
25
|
Yang Y, Li S, Sun Y, Zhang D, Zhao Z, Liu L. Reversing platinum resistance in ovarian cancer multicellular spheroids by targeting Bcl-2. Onco Targets Ther 2019; 12:897-906. [PMID: 30774376 PMCID: PMC6357888 DOI: 10.2147/ott.s187015] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Purpose Peritoneal metastasis is the most common pathway for the spread of ovarian cancer. Ovarian cancer cells in ascites prefer to aggregate into the more chemoresistant multicellular spheroids (MCSs), leading to treatment failure and disease recurrence. We previously established a suspension MCS model of ovarian cancer cells in vitro and found that the MCS cells acquired drug resistance to cisplatin. In the present study, we aimed to uncover the underlying mechanism of the platinum resistance of MCS and the potential targets to reverse the drug resistance. Materials and methods MCS models were established for the phenotypic studies, including proliferation, invasion, migration, drug resistance, apoptosis assays, and signaling pathway analysis. The key molecule, Bcl-2, was screened by profile analysis and validated by Western blotting. siRNA was used to verify the anti-cisplatin-induced apoptosis effect of Bcl-2. The Bcl-2 inhibitor, ABT-737, was used for improving the sensitivity of MCS to cisplatin. The 50% inhibitory concentrations (IC50) were measured by viability assays treated with different concentrations of cisplatin. Flow cytometry and Western blotting were used for quantification of drug-induced apoptosis. Results The ovarian cancer MCS showed a proliferation-stagnant but invasive phenotype when resuspended. When treated with cisplatin, MCS cells showed much higher viability, with significantly fewer apoptotic cells than the adherent cells. Levels of Bcl-2 were upregulated in ovarian cancer ascitic cells and MCS cells. Bcl-2 knockdown by siRNA or blockage by ABT-737 enhanced the cisplatin-induced apoptosis and reduced the 50% inhibitory concentrations of cisplatin for MCS by 58.5% and 88.2%, respectively. Conclusion The upregulated Bcl-2 contributes to cisplatin resistance in our MCS model and targeting it sensitizes the MCS to cisplatin treatment. This provides us a preliminary treatment method for ovarian cancer peritoneal metastasis.
Collapse
Affiliation(s)
- Ya'nan Yang
- Department of Chemotherapy, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China, .,Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Song Li
- Department of Chemotherapy, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China,
| | - Yiting Sun
- Department of Chemotherapy, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China,
| | - Di Zhang
- Department of Chemotherapy, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China,
| | - Zeyi Zhao
- Department of Chemotherapy, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China,
| | - Lian Liu
- Department of Chemotherapy, Cancer Center, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China,
| |
Collapse
|
26
|
Trejo-Solís C, Serrano-Garcia N, Escamilla-Ramírez Á, Castillo-Rodríguez RA, Jimenez-Farfan D, Palencia G, Calvillo M, Alvarez-Lemus MA, Flores-Nájera A, Cruz-Salgado A, Sotelo J. Autophagic and Apoptotic Pathways as Targets for Chemotherapy in Glioblastoma. Int J Mol Sci 2018; 19:ijms19123773. [PMID: 30486451 PMCID: PMC6320836 DOI: 10.3390/ijms19123773] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/14/2018] [Accepted: 11/21/2018] [Indexed: 01/07/2023] Open
Abstract
Glioblastoma multiforme is the most malignant and aggressive type of brain tumor, with a mean life expectancy of less than 15 months. This is due in part to the high resistance to apoptosis and moderate resistant to autophagic cell death in glioblastoma cells, and to the poor therapeutic response to conventional therapies. Autophagic cell death represents an alternative mechanism to overcome the resistance of glioblastoma to pro-apoptosis-related therapies. Nevertheless, apoptosis induction plays a major conceptual role in several experimental studies to develop novel therapies against brain tumors. In this review, we outline the different components of the apoptotic and autophagic pathways and explore the mechanisms of resistance to these cell death pathways in glioblastoma cells. Finally, we discuss drugs with clinical and preclinical use that interfere with the mechanisms of survival, proliferation, angiogenesis, migration, invasion, and cell death of malignant cells, favoring the induction of apoptosis and autophagy, or the inhibition of the latter leading to cell death, as well as their therapeutic potential in glioma, and examine new perspectives in this promising research field.
Collapse
Affiliation(s)
- Cristina Trejo-Solís
- Departamento de Neuroinmunología, Laboratorio de Neurobiología Molecular y Celular, Laboratorio Experimental de Enfermedades Neurodegenerativas del Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", C.P. 14269 Ciudad de México, Mexico.
| | - Norma Serrano-Garcia
- Departamento de Neuroinmunología, Laboratorio de Neurobiología Molecular y Celular, Laboratorio Experimental de Enfermedades Neurodegenerativas del Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", C.P. 14269 Ciudad de México, Mexico.
| | - Ángel Escamilla-Ramírez
- Departamento de Neuroinmunología, Laboratorio de Neurobiología Molecular y Celular, Laboratorio Experimental de Enfermedades Neurodegenerativas del Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", C.P. 14269 Ciudad de México, Mexico.
- Hospital Regional de Alta Especialidad de Oaxaca, Secretaria de Salud, C.P. 71256 Oaxaca, Mexico.
| | | | - Dolores Jimenez-Farfan
- Laboratorio de Inmunología, División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, C.P. 04510 Ciudad de México, Mexico.
| | - Guadalupe Palencia
- Departamento de Neuroinmunología, Laboratorio de Neurobiología Molecular y Celular, Laboratorio Experimental de Enfermedades Neurodegenerativas del Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", C.P. 14269 Ciudad de México, Mexico.
| | - Minerva Calvillo
- Departamento de Neuroinmunología, Laboratorio de Neurobiología Molecular y Celular, Laboratorio Experimental de Enfermedades Neurodegenerativas del Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", C.P. 14269 Ciudad de México, Mexico.
| | - Mayra A Alvarez-Lemus
- División Académica de Ingeniería y Arquitectura, Universidad Juárez Autónoma de Tabasco, C.P. 86040 Tabasco, Mexico.
| | - Athenea Flores-Nájera
- Departamento de Cirugía Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Secretaria de Salud, 14000 Ciudad de México, Mexico.
| | - Arturo Cruz-Salgado
- Departamento de Neuroinmunología, Laboratorio de Neurobiología Molecular y Celular, Laboratorio Experimental de Enfermedades Neurodegenerativas del Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", C.P. 14269 Ciudad de México, Mexico.
| | - Julio Sotelo
- Departamento de Neuroinmunología, Laboratorio de Neurobiología Molecular y Celular, Laboratorio Experimental de Enfermedades Neurodegenerativas del Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", C.P. 14269 Ciudad de México, Mexico.
| |
Collapse
|
27
|
Abe Y, Tada A, Isoyama J, Nagayama S, Yao R, Adachi J, Tomonaga T. Improved phosphoproteomic analysis for phosphosignaling and active-kinome profiling in Matrigel-embedded spheroids and patient-derived organoids. Sci Rep 2018; 8:11401. [PMID: 30061712 PMCID: PMC6065387 DOI: 10.1038/s41598-018-29837-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 06/04/2018] [Indexed: 11/17/2022] Open
Abstract
Many attempts have been made to reproduce the three-dimensional (3D) cancer behavior. For that purpose, Matrigel, an extracellular matrix from Engelbreth-Holm-Swarm mouse sarcoma cell, is widely used in 3D cancer models such as scaffold-based spheroids and patient-derived organoids. However, severe ion suppression caused by contaminants from Matrigel hampers large-scale phosphoproteomics. In the present study, we successfully performed global phosphoproteomics from Matrigel-embedded spheroids and organoids. Using acetone precipitations of tryptic peptides, we identified more than 20,000 class 1 phosphosites from HCT116 spheroids. Bioinformatic analysis revealed that phosphoproteomic status are significantly affected by the method used for the recovery from the Matrigel, i.e., Dispase or Cell Recovery Solution. Furthermore, we observed the activation of several phosphosignalings only in spheroids and not in adherent cells which are coincident with previous study using 3D culture. Finally, we demonstrated that our protocol enabled us to identify more than 20,000 and nearly 3,000 class 1 phosphosites from 1.4 mg and 150 μg of patient-derived organoid, respectively. Additionally, we were able to quantify phosphosites with high reproducibility (r = 0.93 to 0.95). Our phosphoproteomics protocol is useful for analyzing the phosphosignalings of 3D cancer behavior and would be applied for precision medicine with patient-derived organoids.
Collapse
Affiliation(s)
- Yuichi Abe
- Laboratory of Proteome Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan.,Laboratory of Proteomics for Drug Discovery, Center for Drug Design Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan
| | - Asa Tada
- Laboratory of Proteome Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan.,Laboratory of Proteomics for Drug Discovery, Center for Drug Design Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan
| | - Junko Isoyama
- Laboratory of Proteome Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan.,Laboratory of Proteomics for Drug Discovery, Center for Drug Design Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan
| | - Satoshi Nagayama
- Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 135-8550, Tokyo, Japan
| | - Ryoji Yao
- Division of Cell Biology, Cancer Institute, Japanese Foundation for Cancer Research, 135-8550, Tokyo, Japan
| | - Jun Adachi
- Laboratory of Proteome Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan.,Laboratory of Proteomics for Drug Discovery, Center for Drug Design Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan
| | - Takeshi Tomonaga
- Laboratory of Proteome Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan. .,Laboratory of Proteomics for Drug Discovery, Center for Drug Design Research, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan.
| |
Collapse
|
28
|
Increased autophagy in EOC re-ascites cells can inhibit cell death and promote drug resistance. Cell Death Dis 2018; 9:419. [PMID: 29549251 PMCID: PMC5856849 DOI: 10.1038/s41419-018-0449-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/20/2018] [Accepted: 02/28/2018] [Indexed: 12/18/2022]
Abstract
As the major and preferred treatment for ovarian cancer ascites, chemotherapy can reduce or inhibit recurrent ascites (hereafter re-ascites); however, some patients still experience re-ascites. Therefore, this study investigated cases in which epithelial ovarian cancer (EOC) patients experienced re-ascites. In re-ascites cases, CA125, MDR1, LC-3, and Beclin-1 were highly expressed. In addition, CASP-9 and c-CASP-3 expression levels were decreased, and serum CA125 levels (highest 4348 U/ml) were increased compared to chemosensitive cases. The results suggest that high expression levels of Beclin-1 and LC-3, thus increasing the level of autophagy and inhibiting apoptosis in the no-chemotherapy group. In the chemosensitive group, survivin expression was decreased and CASP-9 expression was increased, which led to c-CASP-3 activation and increased tumor cell apoptosis. The results of the cell lines confirm that inhibition of autophagy can increase the sensitivity of ovarian cancer cells to CDDP and promote CDDP-induced cell death. Re-ascites, which appears after chemotherapy, may be associated with drug resistance. In addition, increased autophagy may protect tumor cells from chemotherapeutic drugs, thus inhibiting tumor cell death.
Collapse
|
29
|
Hoarau-Véchot J, Rafii A, Touboul C, Pasquier J. Halfway between 2D and Animal Models: Are 3D Cultures the Ideal Tool to Study Cancer-Microenvironment Interactions? Int J Mol Sci 2018; 19:ijms19010181. [PMID: 29346265 PMCID: PMC5796130 DOI: 10.3390/ijms19010181] [Citation(s) in RCA: 283] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/03/2018] [Accepted: 01/04/2018] [Indexed: 02/06/2023] Open
Abstract
An area that has come to be of tremendous interest in tumor research in the last decade is the role of the microenvironment in the biology of neoplastic diseases. The tumor microenvironment (TME) comprises various cells that are collectively important for normal tissue homeostasis as well as tumor progression or regression. Seminal studies have demonstrated the role of the dialogue between cancer cells (at many sites) and the cellular component of the microenvironment in tumor progression, metastasis, and resistance to treatment. Using an appropriate system of microenvironment and tumor culture is the first step towards a better understanding of the complex interaction between cancer cells and their surroundings. Three-dimensional (3D) models have been widely described recently. However, while it is claimed that they can bridge the gap between in vitro and in vivo, it is sometimes hard to decipher their advantage or limitation compared to classical two-dimensional (2D) cultures, especially given the broad number of techniques used. We present here a comprehensive review of the different 3D methods developed recently, and, secondly, we discuss the pros and cons of 3D culture compared to 2D when studying interactions between cancer cells and their microenvironment.
Collapse
Affiliation(s)
- Jessica Hoarau-Véchot
- Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Qatar Foundation, Education City, Doha 24144, Qatar.
| | - Arash Rafii
- Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Qatar Foundation, Education City, Doha 24144, Qatar.
- Department of Genetic Medicine, Weill Cornell Medical College, New York, NY 10065, USA.
| | - Cyril Touboul
- UMR INSERM U965, Angiogenèse et Recherche Translationnelle, Hôpital Lariboisière, 49 bd de la Chapelle, 75010 Paris, France.
- Service de Gynécologie-Obstétrique et Médecine de la Reproduction, Centre Hospitalier Intercommunal de Créteil, Faculté de Médecine de Créteil UPEC, Paris XII, 40 Avenue de Verdun, 94000 Créteil, France.
| | - Jennifer Pasquier
- Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Qatar Foundation, Education City, Doha 24144, Qatar.
- Department of Genetic Medicine, Weill Cornell Medical College, New York, NY 10065, USA.
- INSERM U955, Equipe 7, 94000 Créteil, France.
| |
Collapse
|
30
|
Long L, Yin M, Min W. 3D Co-culture System of Tumor-associated Macrophages and Ovarian Cancer Cells. Bio Protoc 2018; 8:e2815. [PMID: 29770354 DOI: 10.21769/bioprotoc.2815] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Ovarian cancer is fairly unique in that ovarian carcinoma cells can detach and spread directly through peritoneal cavity. It has been unclear, however, how detached cancer cells survive in the peritoneum and form spheroid structure. We have recently reported that there is a strong correlation between Tumor-associated macrophages (TAMs)-associated spheroid and clinical pathology of ovarian cancer, and that TAMs promote spheroid formation and tumor growth at early stages of transcoelomic metastasis in orthotopic mouse models. We have established an in vitro spheroid formation assay using a 3D co-culture system in which mouse GFP+F4/80+CD206+ TAMs isolated from spheroids of ovarian cancer-bearing donor tomatolysM-cre mice were mixed with ID8 cells (TAM:ID8 at a ratio of 1:10) in medium containing 2% Matrigel and seeded onto the 24-well plate precoated with Matrigel. As transcoelomic metastasis is also associated with many other cancers such as pancreatic and colon cancers, TAM-mediated spheroid formation assay would provide a useful approach to define the molecular mechanism and therapeutic targets for ovarian cancer and other transcoelomic metastasis cancers.
Collapse
Affiliation(s)
- Lingli Long
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Rd II, Guangzhou 510080, China
| | - Mingzhu Yin
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT06520, USA
| | - Wang Min
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Rd II, Guangzhou 510080, China.,Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT06520, USA
| |
Collapse
|
31
|
Sato M, Kawana K, Adachi K, Fujimoto A, Yoshida M, Nakamura H, Nishida H, Inoue T, Taguchi A, Takahashi J, Eguchi S, Yamashita A, Tomio K, Wada-Hiraike O, Oda K, Nagamatsu T, Osuga Y, Fujii T. Spheroid cancer stem cells display reprogrammed metabolism and obtain energy by actively running the tricarboxylic acid (TCA) cycle. Oncotarget 2017; 7:33297-305. [PMID: 27120812 PMCID: PMC5078095 DOI: 10.18632/oncotarget.8947] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 03/28/2016] [Indexed: 12/14/2022] Open
Abstract
The Warburg effect is a metabolic hallmark of cancer cells; cancer cells, unlike normal cells, exclusively activate glycolysis, even in the presence of enough oxygen. On the other hand, intratumoral heterogeneity is currently of interest in cancer research, including that involving cancer stem cells (CSCs). In the present study, we attempted to gain an understanding of metabolism in CSCs that is distinct from that in non-CSCs. After forming spheroids from the OVTOKO (ovarian clear cell adenocarcinoma) and SiHa (cervical squamous cell carcinoma) cell lines, the metabolites of these cells were compared with the metabolites of cancer cells that were cultured in adherent plates. A principle components analysis clearly divided their metabolic features. Amino acids that participate in tricarboxylic acid (TCA) cycle reactions, such as serine and glutamine, were significantly increased in the spheroids. Indeed, spheroids from each cell line contained more total adenylates than did their corresponding cells in adherent cultures. This study demonstrated that cancer metabolism is not limited to aerobic glycolysis (i.e. the Warburg effect), but is flexible and context-dependent. In addition, activation of TCA cycles was suggested to be a metabolic feature of CSCs that was distinct from non-CSCs. The amino acid metabolic pathways discussed here are already considered as targets for cancer therapy, and they are additionally proposed as potential targets for CSC treatment.
Collapse
Affiliation(s)
- Masakazu Sato
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Kei Kawana
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Katsuyuki Adachi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Asaha Fujimoto
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Mitsuyo Yoshida
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Hiroe Nakamura
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Haruka Nishida
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Tomoko Inoue
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Ayumi Taguchi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Juri Takahashi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Satoko Eguchi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Aki Yamashita
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Kensuke Tomio
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Katsutoshi Oda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Takeshi Nagamatsu
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| |
Collapse
|
32
|
Trapp EK, Majunke L, Zill B, Sommer H, Andergassen U, Koch J, Harbeck N, Mahner S, Friedl TWP, Janni W, Rack B, Alunni-Fabbroni M. LKB1 pro-oncogenic activity triggers cell survival in circulating tumor cells. Mol Oncol 2017; 11:1508-1526. [PMID: 28700115 PMCID: PMC5663996 DOI: 10.1002/1878-0261.12111] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 06/28/2017] [Accepted: 06/28/2017] [Indexed: 12/18/2022] Open
Abstract
During intravasation, circulating tumor cells (CTCs) detach from the epithelium of origin and begin the epithelial‐to‐mesenchymal transition (EMT) process, where they lose epithelial features and pass through the endothelium to enter circulation. Although detachment from the extracellular matrix is a strong source of metabolic stress, which induces anoikis, CTCs can survive. Recently, the tumor suppressor liver kinase B1 (LKB1) has gained attention for its role as a proto‐oncogene in restoring the correct ATP/AMP ratio during metabolic stress. The aim of this study was to assess LKB1 expression in epithelial‐negative CTCs isolated from patients with metastatic breast cancer and to characterize its possible association with EMT and stemness features. Transcriptome analysis of EpCAM‐negative CTCs indicated that over 25% of patients showed enhanced LKB1 levels, while almost 20% of patients showed enhanced levels of an EMT transcription factor known as ZEB1. Transcriptome and immunofluorescence analyses showed that patients with enhanced LKB1 were correspondingly ZEB1 negative, suggesting complementary activity for the two proteins. Only ZEB1 was significantly associated with cancer stem cell (CSC) markers. Neither LKB1 nor ZEB1 upregulation showed a correlation with clinical outcome, while enhanced levels of stemness‐associated CD44 correlated with a lower progression‐free and overall survival. Ex vivo models showed that MDA‐MB‐231, a mesenchymal tumor cell line, grew in suspension only if LKB1 was upregulated, but the MCF‐7 epithelial cell line lost its ability to generate spheroids and colonies when LKB1 was inhibited, supporting the idea that LKB1 might be necessary for CTCs to overcome the absence of the extracellular matrix during the early phases of intravasation. If these preliminary results are confirmed, LKB1 will become a novel therapeutic target for eradicating metastasis‐initiating CTCs from patients with primary breast cancer.
Collapse
Affiliation(s)
- Elisabeth Katharina Trapp
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany
| | - Leonie Majunke
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany
| | - Beate Zill
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany
| | - Harald Sommer
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany
| | - Ulrich Andergassen
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany
| | - Julian Koch
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany
| | - Nadia Harbeck
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany
| | - Sven Mahner
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany
| | | | - Wolfgang Janni
- Department of Gynecology and Obstetrics, University Hospital, Ulm, Germany
| | - Brigitte Rack
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany.,Department of Gynecology and Obstetrics, University Hospital, Ulm, Germany
| | - Marianna Alunni-Fabbroni
- Department of Gynecology and Obstetrics, Breast Center, Ludwig-Maximilians-University, Munich, Germany
| |
Collapse
|
33
|
Yin M, Zhou HJ, Zhang J, Lin C, Li H, Li X, Li Y, Zhang H, Breckenridge DG, Ji W, Min W. ASK1-dependent endothelial cell activation is critical in ovarian cancer growth and metastasis. JCI Insight 2017; 2:91828. [PMID: 28931753 DOI: 10.1172/jci.insight.91828] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 08/11/2017] [Indexed: 02/06/2023] Open
Abstract
We have recently reported that tumor-associated macrophages (TAMs) promote early transcoelomic metastasis of ovarian cancer by facilitating TAM-ovarian cancer cell spheroid formation. ASK1 is known to be important for macrophage activation and inflammation-mediated tumorigenesis. In the present study, we show that ASK1 deficiency attenuates TAM-spheroid formation and ovarian cancer progression in an orthotopic ovarian cancer model. Interestingly, ASK1 in stroma, but not in TAMs, is critical for peritoneal tumor growth of ovarian cancer. Moreover, overexpression of an ASK1 inhibitory protein (suppressor of cytokine signaling-1; SOCS1) in vascular endothelium attenuates vascular permeability, TAM infiltration, and ovarian cancer growth. Mechanistically, we show that ASK1 mediates degradation of endothelial junction protein VE-cadherin via a lysosomal pathway to promote macrophage transmigration. Importantly, a pharmacological ASK1 inhibitor prevents tumor-induced vascular leakage, macrophage infiltration, and tumor growth in two mouse models. Since transcoelomic metastasis is also associated with many other cancers, such as pancreatic and colon cancers, our study provides ASK1 as a therapeutic target for the treatment of ovarian cancer and other transcoelomic metastasis cancers.
Collapse
Affiliation(s)
- Mingzhu Yin
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Huanjiao Jenny Zhou
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Jiqin Zhang
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA.,Center for Translational Medicine, The First Affiliated Hospital, and
| | - Caixia Lin
- Center for Translational Medicine, The First Affiliated Hospital, and
| | - Hongmei Li
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Xia Li
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Yonghao Li
- Zhongshan Ophthalmology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haifeng Zhang
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
| | | | - Weidong Ji
- Center for Translational Medicine, The First Affiliated Hospital, and
| | - Wang Min
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA.,Center for Translational Medicine, The First Affiliated Hospital, and
| |
Collapse
|
34
|
Boylan KL, Buchanan PC, Manion RD, Shukla DM, Braumberger K, Bruggemeyer C, Skubitz AP. The expression of Nectin-4 on the surface of ovarian cancer cells alters their ability to adhere, migrate, aggregate, and proliferate. Oncotarget 2017; 8:9717-9738. [PMID: 28038455 PMCID: PMC5354766 DOI: 10.18632/oncotarget.14206] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 12/05/2016] [Indexed: 12/31/2022] Open
Abstract
The cell adhesion molecule Nectin-4 is overexpressed in epithelial cancers, including ovarian cancer. The objective of this study was to determine the biological significance of Nectin-4 in the adhesion, aggregation, migration, and proliferation of ovarian cancer cells. Nectin-4 and its binding partner Nectin-1 were detected in patients' primary tumors, omental metastases, and ascites cells. The human cell lines NIH:OVCAR5 and CAOV3 were genetically modified to alter Nectin-4 expression. Cells that overexpressed Nectin-4 adhered to Nectin-1 in a concentration and time-dependent manner, and adhesion was inhibited by antibodies to Nectin-4 and Nectin-1, as well as synthetic Nectin peptides. In functional assays, CAOV3 cells with Nectin-4 knock-down were unable to form spheroids and migrated more slowly than CAOV3 parental cells expressing Nectin-4. NIH:OVCAR5 parental cells proliferated more rapidly, migrated faster, and formed larger spheroids than either the Nectin-4 knock-down or over-expressing cells. Parental cell lines expressed higher levels of epithelial markers and lower levels of mesenchymal markers compared to Nectin-4 knock-down cells, suggesting a role for Nectin-4 in epithelial-mesenchymal transition. Our results demonstrate that Nectin-4 promotes cell-cell adhesion, migration, and proliferation. Understanding the biology of Nectin-4 in ovarian cancer progression is critical to facilitate its development as a novel therapeutic target.
Collapse
Affiliation(s)
- Kristin L.M. Boylan
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Petra C. Buchanan
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Rory D. Manion
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Dip M. Shukla
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Kelly Braumberger
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Cody Bruggemeyer
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Amy P.N. Skubitz
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| |
Collapse
|
35
|
Endo H, Okami J, Okuyama H, Nishizawa Y, Imamura F, Inoue M. The induction of MIG6 under hypoxic conditions is critical for dormancy in primary cultured lung cancer cells with activating EGFR mutations. Oncogene 2016; 36:2824-2834. [DOI: 10.1038/onc.2016.431] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 10/05/2016] [Accepted: 10/11/2016] [Indexed: 02/08/2023]
|
36
|
Zhao YC, Zhang L, Feng SS, Hong L, Zheng HL, Chen LL, Zheng XL, Ye YQ, Zhao MD, Wang WX, Zheng CH. Efficient delivery of Notch1 siRNA to SKOV3 cells by cationic cholesterol derivative-based liposome. Int J Nanomedicine 2016; 11:5485-5496. [PMID: 27799771 PMCID: PMC5077131 DOI: 10.2147/ijn.s115367] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A novel cationic cholesterol derivative-based small interfering RNA (siRNA) interference strategy was suggested to inhibit Notch1 activation in SKOV3 cells for the gene therapy of ovarian cancer. The cationic cholesterol derivative, N-(cholesterylhemisuccinoyl-amino-3-propyl)-N, N-dimethylamine (DMAPA-chems) liposome, was incubated with siRNA at different nitrogen-to-phosphate ratios to form stabilized, near-spherical siRNA/DMAPA-chems nanoparticles with sizes of 100–200 nm and zeta potentials of 40–50 mV. The siRNA/DMAPA-chems nanoparticles protected siRNA from nuclease degradation in 25% fetal bovine serum. The nanoparticles exhibited high cell uptake and Notch1 gene knockdown efficiency in SKOV3 cells at an nitrogen-to-phosphate ratio of 100 and an siRNA concentration of 50 nM. They also inhibited the growth and promoted the apoptosis of SKOV3 cells. These results may provide the potential for using cationic cholesterol derivatives as efficient nonviral siRNA carriers for the suppression of Notch1 activation in ovarian cancer cells.
Collapse
Affiliation(s)
| | - Li Zhang
- Pharmacy Department, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Shi-Sen Feng
- Department of Pharmaceutic Preparation, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou
| | - Lu Hong
- Department of Pharmaceutic Preparation, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou
| | - Hai-Li Zheng
- Department of Pharmaceutic Preparation, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou
| | - Li-Li Chen
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | | | | | | | - Wen-Xi Wang
- Department of Pharmaceutic Preparation, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou
| | | |
Collapse
|
37
|
Yin M, Li X, Tan S, Zhou HJ, Ji W, Bellone S, Xu X, Zhang H, Santin AD, Lou G, Min W. Tumor-associated macrophages drive spheroid formation during early transcoelomic metastasis of ovarian cancer. J Clin Invest 2016; 126:4157-4173. [PMID: 27721235 DOI: 10.1172/jci87252] [Citation(s) in RCA: 253] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 08/30/2016] [Indexed: 12/13/2022] Open
Abstract
Tumor-associated macrophages (TAMs) can influence ovarian cancer growth, migration, and metastasis, but the detailed mechanisms underlying ovarian cancer metastasis remain unclear. Here, we have shown a strong correlation between TAM-associated spheroids and the clinical pathology of ovarian cancer. Further, we have determined that TAMs promote spheroid formation and tumor growth at early stages of transcoelomic metastasis in an established mouse model for epithelial ovarian cancer. M2 macrophage-like TAMs were localized in the center of spheroids and secreted EGF, which upregulated αMβ2 integrin on TAMs and ICAM-1 on tumor cells to promote association between tumor cells and TAM. Moreover, EGF secreted by TAMs activated EGFR on tumor cells, which in turn upregulated VEGF/VEGFR signaling in surrounding tumor cells to support tumor cell proliferation and migration. Pharmacological blockade of EGFR or antibody neutralization of ICAM-1 in TAMs blunted spheroid formation and ovarian cancer progression in mouse models. These findings suggest that EGF secreted from TAMs plays a critical role in promoting early transcoelomic metastasis of ovarian cancer. As transcoelomic metastasis is also associated with many other cancers, such as pancreatic and colon cancers, our findings uncover a mechanism for TAM-mediated spheroid formation and provide a potential target for the treatment of ovarian cancer and other transcoelomic metastatic cancers.
Collapse
|
38
|
Cheng J, Zhang T, Ji H, Tao K, Guo J, Wei W. Functional characterization of AMP-activated protein kinase signaling in tumorigenesis. Biochim Biophys Acta Rev Cancer 2016; 1866:232-251. [PMID: 27681874 DOI: 10.1016/j.bbcan.2016.09.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 09/22/2016] [Accepted: 09/23/2016] [Indexed: 12/13/2022]
Abstract
AMP-activated protein kinase (AMPK) is a ubiquitously expressed metabolic sensor among various species. Specifically, cellular AMPK is phosphorylated and activated under certain stressful conditions, such as energy deprivation, in turn to activate diversified downstream substrates to modulate the adaptive changes and maintain metabolic homeostasis. Recently, emerging evidences have implicated the potential roles of AMPK signaling in tumor initiation and progression. Nevertheless, a comprehensive description on such topic is still in scarcity, especially in combination of its biochemical features with mouse modeling results to elucidate the physiological role of AMPK signaling in tumorigenesis. Hence, we performed this thorough review by summarizing the tumorigenic role of each component along the AMPK signaling, comprising of both its upstream and downstream effectors. Moreover, their functional interplay with the AMPK heterotrimer and exclusive efficacies in carcinogenesis were chiefly explained among genetically altered mice models. Importantly, the pharmaceutical investigations of AMPK relevant medications have also been highlighted. In summary, in this review, we not only elucidate the potential functions of AMPK signaling pathway in governing tumorigenesis, but also potentiate the future targeted strategy aiming for better treatment of aberrant metabolism-associated diseases, including cancer.
Collapse
Affiliation(s)
- Ji Cheng
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China; Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Tao Zhang
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Hongbin Ji
- Key Laboratory of Systems Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Science, Shanghai 200031, People's Republic of China
| | - Kaixiong Tao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China.
| | - Jianping Guo
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
| | - Wenyi Wei
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
| |
Collapse
|
39
|
Miranda F, Mannion D, Liu S, Zheng Y, Mangala LS, Redondo C, Herrero-Gonzalez S, Xu R, Taylor C, Chedom DF, Carrami EM, Albukhari A, Jiang D, Pradeep S, Rodriguez-Aguayo C, Lopez-Berestein G, Salah E, Abdul Azeez KR, Elkins JM, Campo L, Myers KA, Klotz D, Bivona S, Dhar S, Bast RC, Saya H, Choi HG, Gray NS, Fischer R, Kessler BM, Yau C, Sood AK, Motohara T, Knapp S, Ahmed AA. Salt-Inducible Kinase 2 Couples Ovarian Cancer Cell Metabolism with Survival at the Adipocyte-Rich Metastatic Niche. Cancer Cell 2016; 30:273-289. [PMID: 27478041 DOI: 10.1016/j.ccell.2016.06.020] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 12/24/2015] [Accepted: 06/23/2016] [Indexed: 02/08/2023]
Abstract
The adipocyte-rich microenvironment forms a niche for ovarian cancer metastasis, but the mechanisms driving this process are incompletely understood. Here we show that salt-inducible kinase 2 (SIK2) is overexpressed in adipocyte-rich metastatic deposits compared with ovarian primary lesions. Overexpression of SIK2 in ovarian cancer cells promotes abdominal metastasis while SIK2 depletion prevents metastasis in vivo. Importantly, adipocytes induce calcium-dependent activation and autophosphorylation of SIK2. Activated SIK2 plays a dual role in augmenting AMPK-induced phosphorylation of acetyl-CoA carboxylase and in activating the PI3K/AKT pathway through p85α-S154 phosphorylation. These findings identify SIK2 at the apex of the adipocyte-induced signaling cascades in cancer cells and make a compelling case for targeting SIK2 for therapy in ovarian cancer.
Collapse
Affiliation(s)
- Fabrizio Miranda
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - David Mannion
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Shujuan Liu
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Yiyan Zheng
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Lingegowda S Mangala
- Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; Center for RNAi and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Clara Redondo
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK; Structural Genomics Consortium, Nuffield Department of Medicine, University of Oxford, Old Road Campus Research Building, Oxford OX3 7DQ, UK
| | - Sandra Herrero-Gonzalez
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Ruoyan Xu
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Charlotte Taylor
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Donatien Fotso Chedom
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Eli M Carrami
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Ashwag Albukhari
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK; Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21551, Saudi Arabia
| | - Dahai Jiang
- Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; Center for RNAi and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Sunila Pradeep
- Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Cristian Rodriguez-Aguayo
- Center for RNAi and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; Department of Experimental Therapeutics, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Gabriel Lopez-Berestein
- Center for RNAi and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; Department of Experimental Therapeutics, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Eidarus Salah
- Structural Genomics Consortium, Nuffield Department of Medicine, University of Oxford, Old Road Campus Research Building, Oxford OX3 7DQ, UK
| | - Kamal R Abdul Azeez
- Structural Genomics Consortium, Nuffield Department of Medicine, University of Oxford, Old Road Campus Research Building, Oxford OX3 7DQ, UK
| | - Jonathan M Elkins
- Structural Genomics Consortium, Nuffield Department of Medicine, University of Oxford, Old Road Campus Research Building, Oxford OX3 7DQ, UK
| | - Leticia Campo
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ, UK
| | - Kevin A Myers
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ, UK
| | - Daniel Klotz
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Serena Bivona
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Sunanda Dhar
- Department of Histopathology, Oxford University Hospitals, Oxford OX3 9DU, UK
| | - Robert C Bast
- Department of Experimental Therapeutics, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Hideyuki Saya
- Division of Gene Regulation, Institute for Advanced Medical Research, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Hwan Geun Choi
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA; Department of Cancer Biology, Dana Farber Cancer Institute, Boston, MA 02215, USA
| | - Nathanael S Gray
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA; Department of Cancer Biology, Dana Farber Cancer Institute, Boston, MA 02215, USA
| | - Roman Fischer
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford OX3 7FZ, UK
| | - Benedikt M Kessler
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford OX3 7FZ, UK
| | - Christopher Yau
- Wellcome Trust Centre for Human Genetics, NIHR Biomedical Research Centre, Roosevelt Drive, Oxford OX3 7BN, UK; Department of Statistics, University of Oxford, 1 South Parks Road, Oxford OX1 3TG, UK
| | - Anil K Sood
- Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; Center for RNAi and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Takeshi Motohara
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Stefan Knapp
- Structural Genomics Consortium, Nuffield Department of Medicine, University of Oxford, Old Road Campus Research Building, Oxford OX3 7DQ, UK; Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford OX3 7FZ, UK; Goethe-University Frankfurt, Institute for Pharmaceutical Chemistry and Buchmann Institute for Life Sciences, Riedberg Campus, 60438 Frankfurt am Main, Germany
| | - Ahmed Ashour Ahmed
- Ovarian Cancer Cell Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, Headington, Oxford OX3 9DS, UK; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK.
| |
Collapse
|
40
|
Sundararaman A, Amirtham U, Rangarajan A. Calcium-Oxidant Signaling Network Regulates AMP-activated Protein Kinase (AMPK) Activation upon Matrix Deprivation. J Biol Chem 2016; 291:14410-29. [PMID: 27226623 PMCID: PMC4938166 DOI: 10.1074/jbc.m116.731257] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Indexed: 01/08/2023] Open
Abstract
The AMP-activated protein kinase (AMPK) has recently been implicated in anoikis resistance. However, the molecular mechanisms that activate AMPK upon matrix detachment remain unexplored. In this study, we show that AMPK activation is a rapid and sustained phenomenon upon matrix deprivation, whereas re-attachment to the matrix leads to its dephosphorylation and inactivation. Because matrix detachment leads to loss of integrin signaling, we investigated whether integrin signaling negatively regulates AMPK activation. However, modulation of focal adhesion kinase or Src, the major downstream components of integrin signaling, failed to cause a corresponding change in AMPK signaling. Further investigations revealed that the upstream AMPK kinases liver kinase B1 (LKB1) and Ca2+/calmodulin-dependent protein kinase kinase β (CaMKKβ) contribute to AMPK activation upon detachment. In LKB1-deficient cells, we found AMPK activation to be predominantly dependent on CaMKKβ. We observed no change in ATP levels under detached conditions at early time points suggesting that rapid AMPK activation upon detachment was not triggered by energy stress. We demonstrate that matrix deprivation leads to a spike in intracellular calcium as well as oxidant signaling, and both these intracellular messengers contribute to rapid AMPK activation upon detachment. We further show that endoplasmic reticulum calcium release-induced store-operated calcium entry contributes to intracellular calcium increase, leading to reactive oxygen species production, and AMPK activation. We additionally show that the LKB1/CaMKK-AMPK axis and intracellular calcium levels play a critical role in anchorage-independent cancer sphere formation. Thus, the Ca2+/reactive oxygen species-triggered LKB1/CaMKK-AMPK signaling cascade may provide a quick, adaptable switch to promote survival of metastasizing cancer cells.
Collapse
Affiliation(s)
- Ananthalakshmy Sundararaman
- From the Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore-560012 and
| | - Usha Amirtham
- the Department of Pathology, Kidwai Memorial Institute of Oncology, Bangalore-560030, India
| | - Annapoorni Rangarajan
- From the Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore-560012 and
| |
Collapse
|
41
|
Ziske MA, Pettee KM, Khaing M, Rubinic K, Eisenmann KM. SMIFH2-mediated mDia formin functional inhibition potentiates chemotherapeutic targeting of human ovarian cancer spheroids. Biochem Biophys Res Commun 2016; 472:33-9. [PMID: 26898799 DOI: 10.1016/j.bbrc.2016.02.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 02/14/2016] [Indexed: 01/02/2023]
Abstract
Due to a lack of effective screening or prevention protocol for epithelial ovarian cancer (EOC), there is a critical unmet need to develop therapeutic interventions for EOC treatment. EOC metastasis is unique. Initial dissemination is not primarily hematogenous, yet is facilitated through shedding of primary tumor cells into the peritoneal fluid and accumulating ascites. Increasingly, isolated patient spheroids point to a clinical role for spheroids in EOC metastasis. EOC spheroids are highly invasive structures that disseminate upon peritoneal mesothelium, and visceral tissues including liver and omentum. Selection for this subset of chemoresistant EOC cells could influence disease progression and/or recurrence. Thus, targeting spheroid integrity/structure may improve the chemotherapeutic responsiveness of EOC. We discovered a critical role for mammalian Diaphanous (mDia)-related formin-2 in maintaining EOC spheroid structure. Both mDia2 and the related mDia1 regulate F-actin networks critical to maintain cell-cell contacts and the integrity of multi-cellular epithelial sheets. We investigated if mDia2 functional inhibition via a small molecule inhibitor SMIFH2 combined with chemotherapeutics, such as taxol and cisplatin, inhibits the viability of EOC monolayers and clinically relevant spheroids. SMIFH2-mediated mDia formin inhibition significantly reduced both ES2 and Skov3 EOC monolayer viability while spheroid viability was minimally impacted only at the highest concentrations. Combining either cisplatin or taxol with SMIFH2 did not significantly enhance the effects of either drug alone in ES2 monolayers, while Skov3 monolayers treated with taxol or cisplatin and SMIFH2 showed significant additive inhibition of viability. ES2 spheroids were highly responsive with clear additive anti-viability effects with dual taxol or cisplatin when combined with SMIFH2 treatments. While combined taxol with SMIFH2 in spheroids showed an additive effect relative to single treatments, Skov3 spheroids showed no additive effects from combined cisplatin and SMIFH2 treatments. Our data indicate that mDia formin inhibition combined with taxol to drive enhanced and/or additive anti-viability effects targeting 3D EOC structures, including ES2 and Skov3 spheroids. Combined mDia formin inhibition with cisplatin may be most effective in EOC spheroids where cisplatin sensitivity is retained at moderate levels, such as ES2 cells.
Collapse
Affiliation(s)
- Megan A Ziske
- Department of Biochemistry and Cancer Biology, University of Toledo Health Science Campus, Mail Stop 1010, 3000 Arlington Avenue, Toledo, OH 43614, USA
| | - Krista M Pettee
- Department of Biochemistry and Cancer Biology, University of Toledo Health Science Campus, Mail Stop 1010, 3000 Arlington Avenue, Toledo, OH 43614, USA
| | - MaNada Khaing
- Department of Biochemistry and Cancer Biology, University of Toledo Health Science Campus, Mail Stop 1010, 3000 Arlington Avenue, Toledo, OH 43614, USA
| | - Kaitlin Rubinic
- Department of Biochemistry and Cancer Biology, University of Toledo Health Science Campus, Mail Stop 1010, 3000 Arlington Avenue, Toledo, OH 43614, USA
| | - Kathryn M Eisenmann
- Department of Biochemistry and Cancer Biology, University of Toledo Health Science Campus, Mail Stop 1010, 3000 Arlington Avenue, Toledo, OH 43614, USA.
| |
Collapse
|
42
|
Senft D, Ronai ZA. Immunogenic, cellular, and angiogenic drivers of tumor dormancy--a melanoma view. Pigment Cell Melanoma Res 2015; 29:27-42. [PMID: 26514653 DOI: 10.1111/pcmr.12432] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 10/27/2015] [Indexed: 12/27/2022]
Abstract
In tumor cells, the ability to maintain viability over long time periods without proliferation is referred to as a state of dormancy. Maintenance of dormancy is controlled by numerous cellular and environmental factors, from immune surveillance and tumor-stroma interaction to intracellular signaling. Interference of dormancy (to an 'awaken' state) is associated with reduced response to therapy, resulting in relapse or in metastatic burst. Thus, maintaining a dormant state should prolong therapeutic responses and delay metastasis. Technical obstacles in studying tumor dormancy have limited our understanding of underlying mechanisms and hampered our ability to target dormant cells. In this review, we summarize the progress of research in the field of immunogenic, angiogenic, and cellular dormancy in diverse malignancies with particular attention to our current understanding in melanoma.
Collapse
Affiliation(s)
- Daniela Senft
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Ze'ev A Ronai
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| |
Collapse
|