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Iida K, Okada M. Identifying Key Regulatory Genes in Drug Resistance Acquisition: Modeling Pseudotime Trajectories of Breast Cancer Single-Cell Transcriptome. Cancers (Basel) 2024; 16:1884. [PMID: 38791962 PMCID: PMC11119661 DOI: 10.3390/cancers16101884] [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: 04/28/2024] [Revised: 05/11/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Single-cell RNA-sequencing (scRNA-seq) technology has provided significant insights into cancer drug resistance at the single-cell level. However, understanding dynamic cell transitions at the molecular systems level remains limited, requiring a systems biology approach. We present an approach that combines mathematical modeling with a pseudotime analysis using time-series scRNA-seq data obtained from the breast cancer cell line MCF-7 treated with tamoxifen. Our single-cell analysis identified five distinct subpopulations, including tamoxifen-sensitive and -resistant groups. Using a single-gene mathematical model, we discovered approximately 560-680 genes out of 6000 exhibiting multistable expression states in each subpopulation, including key estrogen-receptor-positive breast cancer cell survival genes, such as RPS6KB1. A bifurcation analysis elucidated their regulatory mechanisms, and we mapped these genes into a molecular network associated with cell survival and metastasis-related pathways. Our modeling approach comprehensively identifies key regulatory genes for drug resistance acquisition, enhancing our understanding of potential drug targets in breast cancer.
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Affiliation(s)
- Keita Iida
- Institute for Protein Research, Osaka University, Suita 565-0871, Osaka, Japan;
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Zhang J, Wu L, Wang C, Xie X, Han Y. Research Progress of Long Non-Coding RNA in Tumor Drug Resistance: A New Paradigm. Drug Des Devel Ther 2024; 18:1385-1398. [PMID: 38689609 PMCID: PMC11060174 DOI: 10.2147/dddt.s448707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 03/25/2024] [Indexed: 05/02/2024] Open
Abstract
In the past few decades, chemotherapy has been one of the most effective cancer treatment options. Drug resistance is currently one of the greatest obstacles to effective cancer treatment. Even though drug resistance mechanisms have been extensively investigated, they have not been fully elucidated. Recent genome-wide investigations have revealed the existence of a substantial quantity of long non-coding RNAs (lncRNAs) transcribed from the human genome, which actively participate in numerous biological processes, such as transcription, splicing, epigenetics, the cell cycle, cell differentiation, development, pluripotency, immune microenvironment. The abnormal expression of lncRNA is considered a contributing factor to the drug resistance. Furthermore, drug resistance may be influenced by genetic and epigenetic variations, as well as individual differences in patient treatment response, attributable to polymorphisms in metabolic enzyme genes. This review focuses on the mechanism of lncRNAs resistance to target drugs in the study of tumors with high mortality, aiming to establish a theoretical foundation for targeted therapy.
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Affiliation(s)
- Jing Zhang
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi’an, Shaanxi, People’s Republic of China
| | - Le Wu
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi’an, Shaanxi, People’s Republic of China
| | - Chenchen Wang
- Department of Critical Care Medicine, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, Gansu, People’s Republic of China
| | - Xin Xie
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi’an, Shaanxi, People’s Republic of China
| | - Yuying Han
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi’an, Shaanxi, People’s Republic of China
- Department of Critical Care Medicine, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, Gansu, People’s Republic of China
- Science and Education Department, Xi’an No. 5 Hospital, Xi’an, Shaanxi, People’s Republic of China
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Lei L, Han K, Wang Z, Shi C, Wang Z, Dai R, Zhang Z, Wang M, Guo Q. Attention-guided variational graph autoencoders reveal heterogeneity in spatial transcriptomics. Brief Bioinform 2024; 25:bbae173. [PMID: 38627939 PMCID: PMC11021349 DOI: 10.1093/bib/bbae173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 03/03/2024] [Accepted: 04/02/2024] [Indexed: 04/19/2024] Open
Abstract
The latest breakthroughs in spatially resolved transcriptomics technology offer comprehensive opportunities to delve into gene expression patterns within the tissue microenvironment. However, the precise identification of spatial domains within tissues remains challenging. In this study, we introduce AttentionVGAE (AVGN), which integrates slice images, spatial information and raw gene expression while calibrating low-quality gene expression. By combining the variational graph autoencoder with multi-head attention blocks (MHA blocks), AVGN captures spatial relationships in tissue gene expression, adaptively focusing on key features and alleviating the need for prior knowledge of cluster numbers, thereby achieving superior clustering performance. Particularly, AVGN attempts to balance the model's attention focus on local and global structures by utilizing MHA blocks, an aspect that current graph neural networks have not extensively addressed. Benchmark testing demonstrates its significant efficacy in elucidating tissue anatomy and interpreting tumor heterogeneity, indicating its potential in advancing spatial transcriptomics research and understanding complex biological phenomena.
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Affiliation(s)
- Lixin Lei
- Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Kaitai Han
- Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Zijun Wang
- Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Chaojing Shi
- Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Zhenghui Wang
- Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Ruoyan Dai
- Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Zhiwei Zhang
- Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Mengqiu Wang
- Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Qianjin Guo
- Academy of Artificial Intelligence, Beijing Institute of Petrochemical Technology, Beijing 102617, China
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Poddar A, Ahmady F, Rao SR, Sharma R, Kannourakis G, Prithviraj P, Jayachandran A. The role of pregnancy associated plasma protein-A in triple negative breast cancer: a promising target for achieving clinical benefits. J Biomed Sci 2024; 31:23. [PMID: 38395880 PMCID: PMC10885503 DOI: 10.1186/s12929-024-01012-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
Pregnancy associated plasma protein-A (PAPP-A) plays an integral role in breast cancer (BC), especially triple negative breast cancer (TNBC). This subtype accounts for the most aggressive BC, possesses high tumor heterogeneity, is least responsive to standard treatments and has the poorest clinical outcomes. There is a critical need to address the lack of effective targeted therapeutic options available. PAPP-A is a protein that is highly elevated during pregnancy. Frequently, higher PAPP-A expression is detected in tumors than in healthy tissues. The increase in expression coincides with increased rates of aggressive cancers. In BC, PAPP-A has been demonstrated to play a role in tumor initiation, progression, metastasis including epithelial-mesenchymal transition (EMT), as well as acting as a biomarker for predicting patient outcomes. In this review, we present the role of PAPP-A, with specific focus on TNBC. The structure and function of PAPP-A, belonging to the pappalysin subfamily, and its proteolytic activity are assessed. We highlight the link of BC and PAPP-A with respect to the IGFBP/IGF axis, EMT, the window of susceptibility and the impact of pregnancy. Importantly, the relevance of PAPP-A as a TNBC clinical marker is reviewed and its influence on immune-related pathways are explored. The relationship and mechanisms involving PAPP-A reveal the potential for more treatment options that can lead to successful immunotherapeutic targets and the ability to assist with better predicting clinical outcomes in TNBC.
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Affiliation(s)
- Arpita Poddar
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
- RMIT University, Victoria, Australia
| | - Farah Ahmady
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
| | - Sushma R Rao
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Revati Sharma
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
| | - George Kannourakis
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
| | - Prashanth Prithviraj
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
| | - Aparna Jayachandran
- Fiona Elsey Cancer Research Institute, Victoria, Australia.
- Federation University, Victoria, Australia.
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Alessio N, Aprile D, Peluso G, Mazzone V, Patrone D, Di Bernardo G, Galderisi U. IGFBP5 is released by senescent cells and is internalized by healthy cells, promoting their senescence through interaction with retinoic receptors. Cell Commun Signal 2024; 22:122. [PMID: 38351010 PMCID: PMC10863175 DOI: 10.1186/s12964-024-01469-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/02/2024] [Indexed: 02/16/2024] Open
Abstract
Cells that are exposed to harmful genetic damage, either from internal or external sources, may undergo senescence if they are unable to repair their DNA. Senescence, characterized by a state of irreversible growth arrest, can spread to neighboring cells through a process known as the senescence-associated secretory phenotype (SASP). This phenomenon contributes to both aging and the development of cancer. The SASP comprises a variety of factors that regulate numerous functions, including the induction of secondary senescence, modulation of immune system activity, remodeling of the extracellular matrix, alteration of tissue structure, and promotion of cancer progression. Identifying key factors within the SASP is crucial for understanding the underlying mechanisms of senescence and developing effective strategies to counteract cellular senescence. Our research has specifically focused on investigating the role of IGFBP5, a component of the SASP observed in various experimental models and conditions.Through our studies, we have demonstrated that IGFBP5 actively contributes to promoting senescence and can induce senescence in neighboring cells. We have gained valuable insights into the mechanisms through which IGFBP5 exerts its pro-senescence effects. These mechanisms include its release following genotoxic stress, involvement in signaling pathways mediated by reactive oxygen species and prostaglandins, internalization via specialized structures called caveolae, and interaction with a specific protein known as RARα. By uncovering these mechanisms, we have advanced our understanding of the intricate role of IGFBP5 in the senescence process. The significance of IGFBP5 as a pro-aging factor stems from an in vivo study we conducted on patients undergoing Computer Tomography analysis. In these patients, we observed an elevation in circulating IGFBP5 levels in response to radiation-induced organismal stress.Globally, our findings highlight the potential of IGFBP5 as a promising therapeutic target for age-related diseases and cancer.
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Affiliation(s)
- Nicola Alessio
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, via Luigi De Crecchio 7, Naples, 80138, Italy
| | - Domenico Aprile
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, via Luigi De Crecchio 7, Naples, 80138, Italy
| | | | - Valeria Mazzone
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, via Luigi De Crecchio 7, Naples, 80138, Italy
| | - Deanira Patrone
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, via Luigi De Crecchio 7, Naples, 80138, Italy
| | - Giovanni Di Bernardo
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, via Luigi De Crecchio 7, Naples, 80138, Italy.
| | - Umberto Galderisi
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, via Luigi De Crecchio 7, Naples, 80138, Italy.
- Genome and Stem Cell Center (GENKÖK), Erciyes University, Kayseri, Turkey.
- Center for Biotechnology, Sbarro Institute for Cancer Research and Molecular Medicine Temple University, PA, Philadelphia, USA.
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Zhang B, Deng X, You R, Liu J, Hou D, Wang X, Chen S, Li D, Fu Q, Zhang J, Huang H, Chen X. Secreted insulin-like growth factor binding protein 5 functions as a tumor suppressor and chemosensitizer through inhibiting insulin-like growth factor 1 receptor/protein kinase B pathway in acute myeloid leukemia. Neoplasia 2024; 47:100952. [PMID: 38159363 PMCID: PMC10829870 DOI: 10.1016/j.neo.2023.100952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/03/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND In addition to being secreted into the intercellular spaces by exocytosis, insulin-like growth factor binding protein 5 (IGFBP5) may also remain in the cytosol or be transported to the nucleus. Depending on the different cellular context and subcellular distribution, IGFBP5 can act as a tumor suppressor or promoter through insulin-like growth factor -dependent or -independent mechanisms. Yet, little is known about the impacts of IGFBP5 on acute myeloid leukemia (AML) and its underlying mechanism. METHODS Here we investigated the roles of IGFBP5 in human AML by using recombinant human IGFBP5 (rhIGFBP5) protein and U937 and THP1 cell lines which stably and ectopically expressed IGFBP5 or mutant IGFBP5 (mtIGFBP5) with the lack of secretory signal peptide. Cell counting kit-8 and flow cytometry assay were conducted to assess the cell viability, cell apoptosis and cell cycle distribution. Cytotoxicity assay was used to detect the chemosensitivity. Leukemia xenograft model and hematoxylin-eosin staining were performed to evaluate AML progression and extramedullary infiltration in vivo. RESULTS In silico analysis demonstrated a positive association between IGFBP5 expression and overall survival of the AML patients. Both IGFBP5 overexpression and extrinsic rhIGFBP5 suppressed the growth of THP1 and U937 cells by inducing cell apoptosis and arresting G1/S transition and promoted the chemosensitivity of U937 and THP1 cells to daunorubicin and cytarabine. However, overexpression of mtIGFBP5 failed to demonstrate these properties. An in vivo xenograft mouse model of U937 cells also indicated that overexpression of IGFBP5 rather than mtIGFBP5 alleviated AML progression and extramedullary infiltration. Mechanistically, these biological consequences depended on the inactivation of insulin-like growth factor 1 receptor -mediated phosphatidylinositol-3-kinase/protein kinase B pathway. CONCLUSIONS Our findings revealed secreted rather than intracellular IGFBP5 as a tumor-suppressor and chemosensitizer in AML. Upregulation of serum IGFBP5 by overexpression or addition of extrinsic rhIGFBP5 may serve as a suitable therapeutic approach for AML.
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Affiliation(s)
- Beiying Zhang
- Central Laboratory, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, Fujian 350001, China; Department of Laboratory Medicine, The First Hospital of Quanzhou Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Xiaoling Deng
- Jiangxi Health Commission Key Laboratory of Leukemia, the Affiliated Ganzhou Hospital of Nanchang University, No 16 Meiguan Road, Ganzhou, Jiangxi 341000, China; Ganzhou Key Laboratory of Molecular Medicine, the Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, Jiangxi 341000, China
| | - Ruolan You
- Central Laboratory, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, Fujian 350001, China
| | - Jingru Liu
- Central Laboratory, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, Fujian 350001, China
| | - Diyu Hou
- Central Laboratory, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, Fujian 350001, China
| | - Xiaoting Wang
- Central Laboratory, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, Fujian 350001, China
| | - Shucheng Chen
- Central Laboratory, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, Fujian 350001, China
| | - Dongliang Li
- Department of Hepatobiliary Disease, the 900th Hospital of the People's Liberation Army Joint Service Support Force, Fuzhou, Fujian 350025, China
| | - Qiang Fu
- Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, China
| | - Jingdong Zhang
- Jiangxi Health Commission Key Laboratory of Leukemia, the Affiliated Ganzhou Hospital of Nanchang University, No 16 Meiguan Road, Ganzhou, Jiangxi 341000, China
| | - Huifang Huang
- Central Laboratory, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, Fujian 350001, China.
| | - Xiaoli Chen
- Jiangxi Health Commission Key Laboratory of Leukemia, the Affiliated Ganzhou Hospital of Nanchang University, No 16 Meiguan Road, Ganzhou, Jiangxi 341000, China; Ganzhou Key Laboratory of Molecular Medicine, the Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, Jiangxi 341000, China.
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Malignancies in Patients with Celiac Disease: Diagnostic Challenges and Molecular Advances. Genes (Basel) 2023; 14:genes14020376. [PMID: 36833303 PMCID: PMC9956047 DOI: 10.3390/genes14020376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/26/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Celiac disease (CD) is a multiorgan autoimmune disorder of the chronic intestinal disease group characterized by duodenal inflammation in genetically predisposed individuals, precipitated by gluten ingestion. The pathogenesis of celiac disease is now widely studied, overcoming the limits of the purely autoimmune concept and explaining its hereditability. The genomic profiling of this condition has led to the discovery of numerous genes involved in interleukin signaling and immune-related pathways. The spectrum of disease manifestations is not limited to the gastrointestinal tract, and a significant number of studies have considered the possible association between CD and neoplasms. Patients with CD are found to be at increased risk of developing malignancies, with a particular predisposition of certain types of intestinal cancer, lymphomas, and oropharyngeal cancers. This can be partially explained by common cancer hallmarks present in these patients. The study of gut microbiota, microRNAs, and DNA methylation is evolving to find the any possible missing links between CD and cancer incidence in these patients. However, the literature is extremely mixed and, therefore, our understanding of the biological interplay between CD and cancer remains limited, with significant implications in terms of clinical management and screening protocols. In this review article, we seek to provide a comprehensive overview of the genomics, epigenomics, and transcriptomics data on CD and its relation to the most frequent types of neoplasms that may occur in these patients.
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Transcriptomic Profiles of Normal Pituitary Cells and Pituitary Neuroendocrine Tumor Cells. Cancers (Basel) 2022; 15:cancers15010110. [PMID: 36612109 PMCID: PMC9817686 DOI: 10.3390/cancers15010110] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
The pituitary gland is one of the most cellularly diverse regions of the brain. Recent advancements in transcriptomic biology, such as single-cell RNA sequencing, bring an unprecedented glimpse into the molecular composition of the pituitary, both in its normal physiological state and in disease. Deciphering the normal pituitary transcriptomic signatures provides a better insight into the ontological origin and development of five types of endocrine cells, a process involving complex cascades of transcription factors that are still being established. In parallel with these observations about normal pituitary development, recent transcriptomic findings on pituitary neuroendocrine tumors (PitNETs) demonstrate both preservations and changes in transcription factor expression patterns compared to those seen during gland development. Furthermore, recent studies also identify differentially expressed genes that drive various tumor behaviors, including hormone hypersecretion and tumor aggression. Understanding the comprehensive multiomic profiles of PitNETs is essential in developing molecular profile-based therapies for PitNETs not curable with current treatment modalities and could eventually help align PitNETs with the breakthroughs being made in applying precision medicine to other tumors.
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Waters JA, Urbano I, Robinson M, House CD. Insulin-like growth factor binding protein 5: Diverse roles in cancer. Front Oncol 2022; 12:1052457. [PMID: 36465383 PMCID: PMC9714447 DOI: 10.3389/fonc.2022.1052457] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 11/02/2022] [Indexed: 11/18/2022] Open
Abstract
Insulin-like growth factor binding proteins (IGFBPs) and the associated signaling components in the insulin-like growth factor (IGF) pathway regulate cell differentiation, proliferation, apoptosis, and adhesion. Of the IGFBPs, insulin-like growth factor binding protein 5 (IGFBP5) is the most evolutionarily conserved with a dynamic range of IGF-dependent and -independent functions, and studies on the actions of IGFBP5 in cancer have been somewhat paradoxical. In cancer, the IGFBPs respond to external stimuli to modulate disease progression and therapeutic responsiveness in a context specific manner. This review discusses the different roles of IGF signaling and IGFBP5 in disease with an emphasis on discoveries within the last twenty years, which underscore a need to clarify the IGF-independent actions of IGFBP5, the impact of its subcellular localization, the differential activities of each of the subdomains, and the response to elements of the tumor microenvironment (TME). Additionally, recent advances addressing the role of IGFBP5 in resistance to cancer therapeutics will be discussed. A better understanding of the contexts in which IGFBP5 functions will facilitate the discovery of new mechanisms of cancer progression that may lead to novel therapeutic opportunities.
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Affiliation(s)
- Jennifer A. Waters
- Biology Department, San Diego State University, San Diego, CA, United States
| | - Ixchel Urbano
- Biology Department, San Diego State University, San Diego, CA, United States
| | - Mikella Robinson
- Biology Department, San Diego State University, San Diego, CA, United States
| | - Carrie D. House
- Biology Department, San Diego State University, San Diego, CA, United States,Moore’s Cancer Center, University of California, San Diego, San Diego, CA, United States,*Correspondence: Carrie D. House,
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