1
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Wang Y, Ji B, Zhang L, Wang J, He J, Ding B, Ren M. Identification of metastasis-related genes for predicting prostate cancer diagnosis, metastasis and immunotherapy drug candidates using machine learning approaches. Biol Direct 2024; 19:50. [PMID: 38918844 PMCID: PMC11197330 DOI: 10.1186/s13062-024-00494-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: 05/15/2024] [Accepted: 06/18/2024] [Indexed: 06/27/2024] Open
Abstract
BACKGROUND Prostate cancer (PCa) is the second leading cause of tumor-related mortality in men. Metastasis from advanced tumors is the primary cause of death among patients. Identifying novel and effective biomarkers is essential for understanding the mechanisms of metastasis in PCa patients and developing successful interventions. METHODS Using the GSE8511 and GSE27616 data sets, 21 metastasis-related genes were identified through the weighted gene co-expression network analysis (WGCNA) method. Subsequent functional analysis of these genes was conducted on the gene set cancer analysis (GSCA) website. Cluster analysis was utilized to explore the relationship between these genes, immune infiltration in PCa, and the efficacy of targeted drug IC50 scores. Machine learning algorithms were then employed to construct diagnostic and prognostic models, assessing their predictive accuracy. Additionally, multivariate COX regression analysis highlighted the significant role of POLD1 and examined its association with DNA methylation. Finally, molecular docking and immunohistochemistry experiments were carried out to assess the binding affinity of POLD1 to PCa drugs and its impact on PCa prognosis. RESULTS The study identified 21 metastasis-related genes using the WGCNA method, which were found to be associated with DNA damage, hormone AR activation, and inhibition of the RTK pathway. Cluster analysis confirmed a significant correlation between these genes and PCa metastasis, particularly in the context of immunotherapy and targeted therapy drugs. A diagnostic model combining multiple machine learning algorithms showed strong predictive capabilities for PCa diagnosis, while a transfer model using the LASSO algorithm also yielded promising results. POLD1 emerged as a key prognostic gene among the metastatic genes, showing associations with DNA methylation. Molecular docking experiments supported its high affinity with PCa-targeted drugs. Immunohistochemistry experiments further validated that increased POLD1 expression is linked to poor prognosis in PCa patients. CONCLUSIONS The developed diagnostic and metastasis models provide substantial value for patients with prostate cancer. The discovery of POLD1 as a novel biomarker related to prostate cancer metastasis offers a promising avenue for enhancing treatment of prostate cancer metastasis.
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Affiliation(s)
- YaXuan Wang
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Bo Ji
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Lu Zhang
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Jinfeng Wang
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - JiaXin He
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - BeiChen Ding
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
| | - MingHua Ren
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
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2
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Li N, Huang J, He S, Zheng Q, Ye F, Qin Z, Wang D, Xiao T, Mao M, Zhou Z, Tang T, Zhang L, Wang X, Wang Y, Lyu Y, Liu L, Dai L, Wang J, Guan J. The development of a novel zeolite-based assay for efficient and deep plasma proteomic profiling. J Nanobiotechnology 2024; 22:164. [PMID: 38600601 PMCID: PMC11007927 DOI: 10.1186/s12951-024-02404-9] [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: 08/20/2023] [Accepted: 03/18/2024] [Indexed: 04/12/2024] Open
Abstract
Plasma proteins are considered the most informative source of biomarkers for disease diagnosis and monitoring. Mass spectrometry (MS)-based proteomics has been applied to identify biomarkers in plasma, but the complexity of the plasma proteome and the extremely large dynamic range of protein abundances in plasma make the clinical application of plasma proteomics highly challenging. We designed and synthesized zeolite-based nanoparticles to deplete high-abundance plasma proteins. The resulting novel plasma proteomic assay can measure approximately 3000 plasma proteins in a 45 min chromatographic gradient. Compared to those in neat and depleted plasma, the plasma proteins identified by our assay exhibited distinct biological profiles, as validated in several public datasets. A pilot investigation of the proteomic profile of a hepatocellular carcinoma (HCC) cohort identified 15 promising protein features, highlighting the diagnostic value of the plasma proteome in distinguishing individuals with and without HCC. Furthermore, this assay can be easily integrated with all current downstream protein profiling methods and potentially extended to other biofluids. In conclusion, we established a robust and efficient plasma proteomic assay with unprecedented identification depth, paving the way for the translation of plasma proteomics into clinical applications.
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Affiliation(s)
- Nan Li
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Jingnan Huang
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital, (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Shangwen He
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Qiaocong Zheng
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Oncology, People's Hospital of YangJiang, Yangjiang, 529500, Guangdong, China
| | - Feng Ye
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Zhengxing Qin
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, Shandong, China
| | - Dong Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, Shandong, China
| | - Ting Xiao
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Mengyuan Mao
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Zhenhua Zhou
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Tingxi Tang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Longshan Zhang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Xiaoqing Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Yingqiao Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Ying Lyu
- Department of Traditional Chinese Medicine, Nanfang Hospital,, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Laiyu Liu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
| | - Lingyun Dai
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital, (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China.
| | - Jigang Wang
- Department of Nephrology, Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital, (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China.
| | - Jian Guan
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, 510515, Guangdong, China.
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3
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Ligan C, Ma XH, Zhao SL, Zhao W. The regulatory role and mechanism of mast cells in tumor microenvironment. Am J Cancer Res 2024; 14:1-15. [PMID: 38323271 PMCID: PMC10839313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/25/2023] [Indexed: 02/08/2024] Open
Abstract
Mast cells (MCs) have emerged as pivotal contributors to both the defensive immune response and immunomodulation. They also exhibit regulatory functions in modulating pathological processes across various allergic diseases. The impact of MC presence within tumor tissues has garnered considerable attention, yielding conflicting findings. While some studies propose that MCs within tumor tissues promote tumor initiation and progression, others advocate an opposing perspective. Notably, evidence emphasizes the dual role of MCs in cancer, both as promoters and suppressors, is crucial for optimizing cancer treatment strategies. These conflicting viewpoints have generated substantial controversy, underscoring the need for a comprehensive understanding of MC's role in tumor immune responses.
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Affiliation(s)
- Caryl Ligan
- General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical UniversityNanjing, Jiangsu, China
| | - Xin-Hua Ma
- General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical UniversityNanjing, Jiangsu, China
| | - Shu-Li Zhao
- General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical UniversityNanjing, Jiangsu, China
| | - Wei Zhao
- Department of Pathology, Nanjing First Hospital, Nanjing Medical UniversityNanjing, Jiangsu, China
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4
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Guo X, Sun M, Yang P, Meng X, Liu R. Role of mast cells activation in the tumor immune microenvironment and immunotherapy of cancers. Eur J Pharmacol 2023; 960:176103. [PMID: 37852570 DOI: 10.1016/j.ejphar.2023.176103] [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: 06/08/2023] [Revised: 09/25/2023] [Accepted: 10/04/2023] [Indexed: 10/20/2023]
Abstract
The mast cell is an important cellular component that plays a crucial role in the crosstalk between innate and adaptive immune responses within the tumor microenvironment (TME). Recently, numerous studies have indicated that mast cells related to tumors play a dual role in regulating cancers, with conflicting results seemingly determined by the degranulation medium. As such, mast cells are an ignored but very promising potential target for cancer immunotherapy based on their immunomodulatory function. In this review, we present a comprehensive overview of the roles and mechanisms of mast cells in diverse cancer types. Firstly, we evaluated the infiltration density and location of mast cells on tumor progression. Secondly, mast cells are activated by the TME and subsequently release a range of inflammatory mediators, cytokines, chemokines, and lipid products that modulate their pro-or anti-tumor functions. Thirdly, activated mast cells engage in intercellular communication with other immune or stromal cells to modulate the immune status or promote tumor development. Finally, we deliberated on the clinical significance of targeting mast cells as a therapeutic approach to restrict tumor initiation and progression. Overall, our review aims to provide insights for future research on the role of mast cells in tumors and their potential as therapeutic targets for cancer treatment.
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Affiliation(s)
- Xinxin Guo
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China; Xiangnan University, Chenzhou, China
| | - Mingjun Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Peiyan Yang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Xingchen Meng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Ran Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China.
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5
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Schaefer MA, Roy P, Chava S, Meyerson A, Duncan AL, Chee L, Hewitt KJ. Physiological and regenerative functions of sterile-α motif protein-14 in hematopoiesis. Exp Hematol 2023; 128:38-47. [PMID: 37722652 PMCID: PMC10947990 DOI: 10.1016/j.exphem.2023.09.003] [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: 08/29/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/20/2023]
Abstract
Sterile α-motif domain-14 (Samd14) protein expression increases the regenerative capacity of the erythroid system. Samd14 is transcriptionally upregulated and promotes cell signaling via the receptor tyrosine kinase Kit in a critical window of acute erythroid regeneration. We generated a hematopoietic-specific conditional Samd14 knockout mouse model (Samd14-CKO) to study the role of Samd14 in hematopoiesis. The Samd14-CKO mouse was viable and exhibited no steady-state hematopoietic phenotype. Samd14-CKO mice were hypersensitive to 5-fluorouracil, resulting in more severe anemia during recovery and impaired erythroid progenitor colony formation. Ex vivo, Samd14-CKO hematopoietic progenitors were defective in their ability to form mast cells. Samd14-CKO mast cells exhibited altered Kit/stem cell factor (SCF), IL-3/IL-3R signaling, and less granularity than Samd14-FL/FL cells. Our findings indicate that Samd14 promotes both erythroid and mast cell functions. The Samd14-CKO mouse phenotype exhibits striking similarities to the KitW/W-v mice, which carry Kit mutations resulting in reduced tyrosine kinase-dependent signaling, causing mast cell and erythroid abnormalities. The Samd14-CKO mouse model is a new tool for studying hematologic pathologies involving Kit signaling.
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Affiliation(s)
- Meg A Schaefer
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE
| | - Pooja Roy
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE
| | - Srinivas Chava
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE
| | - Ainsley Meyerson
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE
| | - Andrew L Duncan
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE
| | - Linda Chee
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE
| | - Kyle J Hewitt
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE.
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6
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Han J, Dong L, Wu M, Ma F. Dynamic polarization of tumor-associated macrophages and their interaction with intratumoral T cells in an inflamed tumor microenvironment: from mechanistic insights to therapeutic opportunities. Front Immunol 2023; 14:1160340. [PMID: 37251409 PMCID: PMC10219223 DOI: 10.3389/fimmu.2023.1160340] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 04/20/2023] [Indexed: 05/31/2023] Open
Abstract
Immunotherapy has brought a paradigm shift in the treatment of tumors in recent decades. However, a significant proportion of patients remain unresponsive, largely due to the immunosuppressive tumor microenvironment (TME). Tumor-associated macrophages (TAMs) play crucial roles in shaping the TME by exhibiting dual identities as both mediators and responders of inflammation. TAMs closely interact with intratumoral T cells, regulating their infiltration, activation, expansion, effector function, and exhaustion through multiple secretory and surface factors. Nevertheless, the heterogeneous and plastic nature of TAMs renders the targeting of any of these factors alone inadequate and poses significant challenges for mechanistic studies and clinical translation of corresponding therapies. In this review, we present a comprehensive summary of the mechanisms by which TAMs dynamically polarize to influence intratumoral T cells, with a focus on their interaction with other TME cells and metabolic competition. For each mechanism, we also discuss relevant therapeutic opportunities, including non-specific and targeted approaches in combination with checkpoint inhibitors and cellular therapies. Our ultimate goal is to develop macrophage-centered therapies that can fine-tune tumor inflammation and empower immunotherapy.
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Affiliation(s)
- Jiashu Han
- 4+4 Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Dongcheng, Beijing, China
| | - Luochu Dong
- 4+4 Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Dongcheng, Beijing, China
| | - Mengwei Wu
- Department of General Surgery, Peking Union Medical College Hospital (CAMS), Beijing, China
| | - Fei Ma
- Center for National Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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7
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Adams MN, Croft LV, Urquhart A, Saleem MAM, Rockstroh A, Duijf PHG, Thomas PB, Ferguson GP, Najib IM, Shah ET, Bolderson E, Nagaraj S, Williams ED, Nelson CC, O'Byrne KJ, Richard DJ. hSSB1 (NABP2/OBFC2B) modulates the DNA damage and androgen-induced transcriptional response in prostate cancer. Prostate 2023; 83:628-640. [PMID: 36811381 PMCID: PMC10953336 DOI: 10.1002/pros.24496] [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: 08/28/2022] [Revised: 12/21/2022] [Accepted: 01/23/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND Activation and regulation of androgen receptor (AR) signaling and the DNA damage response impact the prostate cancer (PCa) treatment modalities of androgen deprivation therapy (ADT) and radiotherapy. Here, we have evaluated a role for human single-strand binding protein 1 (hSSB1/NABP2) in modulation of the cellular response to androgens and ionizing radiation (IR). hSSB1 has defined roles in transcription and maintenance of genome stability, yet little is known about this protein in PCa. METHODS We correlated hSSB1 with measures of genomic instability across available PCa cases from The Cancer Genome Atlas (TCGA). Microarray and subsequent pathway and transcription factor enrichment analysis were performed on LNCaP and DU145 prostate cancer cells. RESULTS Our data demonstrate that hSSB1 expression in PCa correlates with measures of genomic instability including multigene signatures and genomic scars that are reflective of defects in the repair of DNA double-strand breaks via homologous recombination. In response to IR-induced DNA damage, we demonstrate that hSSB1 regulates cellular pathways that control cell cycle progression and the associated checkpoints. In keeping with a role for hSSB1 in transcription, our analysis revealed that hSSB1 negatively modulates p53 and RNA polymerase II transcription in PCa. Of relevance to PCa pathology, our findings highlight a transcriptional role for hSSB1 in regulating the androgen response. We identified that AR function is predicted to be impacted by hSSB1 depletion, whereby this protein is required to modulate AR gene activity in PCa. CONCLUSIONS Our findings point to a key role for hSSB1 in mediating the cellular response to androgen and DNA damage via modulation of transcription. Exploiting hSSB1 in PCa might yield benefits as a strategy to ensure a durable response to ADT and/or radiotherapy and improved patient outcomes.
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Affiliation(s)
- Mark N. Adams
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
| | - Laura V. Croft
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
| | - Aaron Urquhart
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
| | | | - Anja Rockstroh
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
| | - Pascal H. G. Duijf
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
- Centre for Data ScienceQueensland University of TechnologyBrisbaneQueenslandAustralia
- Institute of Clinical MedicineUniversity of OsloOsloNorway
- Department of Medical GeneticsOslo University HospitalOsloNorway
- Diamantina InstituteThe University of QueenslandBrisbaneQueenslandAustralia
| | - Patrick B. Thomas
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
- Queensland Bladder Cancer InitiativeWoolloongabbaQueenslandAustralia
- Australian Prostate Cancer Research Centre – QueenslandBrisbaneQueenslandAustralia
| | - Genevieve P. Ferguson
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
| | - Idris Mohd Najib
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
| | - Esha T. Shah
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
| | - Emma Bolderson
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
| | - Shivashankar Nagaraj
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
| | - Elizabeth D. Williams
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
- Queensland Bladder Cancer InitiativeWoolloongabbaQueenslandAustralia
- Australian Prostate Cancer Research Centre – QueenslandBrisbaneQueenslandAustralia
| | - Colleen C. Nelson
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
- Australian Prostate Cancer Research Centre – QueenslandBrisbaneQueenslandAustralia
| | - Kenneth J. O'Byrne
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
- Australian Prostate Cancer Research Centre – QueenslandBrisbaneQueenslandAustralia
- Cancer ServicesPrincess Alexandra HospitalWoolloongabbaQueenslandAustralia
| | - Derek J. Richard
- School of Biomedical Sciences, Faculty of Health, Translational Research InstituteQueensland University of TechnologyWoolloongabbaQueenslandAustralia
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8
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Messex JK, Liou GY. Impact of Immune Cells in the Tumor Microenvironment of Prostate Cancer Metastasis. Life (Basel) 2023; 13:333. [PMID: 36836690 PMCID: PMC9967893 DOI: 10.3390/life13020333] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/17/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023] Open
Abstract
Prostate cancer is the most prevalent type of cancer in senior American men. Currently, the five-year survival rate after the initial diagnosis of prostate cancer is close to 100%. However, it is also the second leading cause of cancer death in senior men due to the dissemination of prostate cancer cells outside of the prostate causing growth in other organs, known as metastatic prostate cancer. The tumor microenvironment (TME) plays a critical role in the development, progression and metastasis of prostate cancer. One of the major components of the TME contains various types of immune cells, often recruited by cancer cells to the cancer formation areas. The interactions among prostate cancer cells and the infiltrating immune cells affect the outcome of prostate cancer. Here, we summarize the mechanisms various infiltrating immune cells use to regulate prostate cancer metastasis and possibly lead to the development of treatment strategies. Furthermore, the information here may also give rise to preventative strategies that focus on targeting the TME of prostate cancer patients.
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Affiliation(s)
- Justin K. Messex
- Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA
| | - Geou-Yarh Liou
- Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA
- Department of Biological Sciences, Clark Atlanta University, Atlanta, GA 30314, USA
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9
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Ray S, Chee L, Zhou Y, Schaefer MA, Naldrett MJ, Alvarez S, Woods NT, Hewitt K. Functional requirements for a Samd14-capping protein complex in stress erythropoiesis. eLife 2022; 11:76497. [PMID: 35713400 PMCID: PMC9282853 DOI: 10.7554/elife.76497] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 06/06/2022] [Indexed: 11/18/2022] Open
Abstract
Acute anemia induces rapid expansion of erythroid precursors and accelerated differentiation to replenish erythrocytes. Paracrine signals—involving cooperation between stem cell factor (SCF)/Kit signaling and other signaling inputs—are required for the increased erythroid precursor activity in anemia. Our prior work revealed that the sterile alpha motif (SAM) domain 14 (Samd14) gene increases the regenerative capacity of the erythroid system in a mouse genetic model and promotes stress-dependent Kit signaling. However, the mechanism underlying Samd14’s role in stress erythropoiesis is unknown. We identified a protein-protein interaction between Samd14 and the α- and β-heterodimers of the F-actin capping protein (CP) complex. Knockdown of the CP β subunit increased erythroid maturation in murine ex vivo cultures and decreased colony forming potential of stress erythroid precursors. In a genetic complementation assay for Samd14 activity, our results revealed that the Samd14-CP interaction is a determinant of erythroid precursor cell levels and function. Samd14-CP promotes SCF/Kit signaling in CD71med spleen erythroid precursors. Given the roles of Kit signaling in hematopoiesis and Samd14 in Kit pathway activation, this mechanism may have pathological implications in acute/chronic anemia. Anemia is a condition in which the body has a shortage of healthy red blood cells to carry enough oxygen to support its organs. A range of factors are known to cause anemia, including traumatic blood loss, toxins or nutritional deficiency. An estimated one-third of all women of reproductive age are anemic, which can cause tiredness, weakness and shortness of breath. Severe anemia drives the release of hormones and growth factors, leading to a rapid regeneration of precursor red blood cells to replenish the supply in the blood. To understand how red blood cell regeneration is controlled, Ray et al. studied proteins involved in regenerating blood using mice in which anemia had been induced with chemicals. Previous research had shown that the protein Samd14 is produced at higher quantities in individuals with anemia, and is involved with the recovery of lost red blood cells. However, it is not known how the Samd14 protein plays a role in regenerating blood cells, or whether Samd14 interacts with other proteins required for red blood cell production. To shed light on these questions, mouse cells exposed to anemia conditions were used to see what proteins Samd14 binds to. Purifying Samd14 revealed that it interacts with the actin capping protein. This interaction relies on a specific region of Samd14 that is similar to regions in other proteins that bind capping proteins. Ray et al. found that the interaction between Samd14 and the actin capping protein increased the signals needed for the development and survival of new red blood cells. These results identify a signaling mechanism that, if disrupted, could cause anemia to develop. They lead to a better understanding of how our bodies recover from anemia, and potential avenues to treat this condition.
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Affiliation(s)
- Suhita Ray
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, United States
| | - Linda Chee
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, United States
| | - Yichao Zhou
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, United States
| | - Meg A Schaefer
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, United States
| | - Michael J Naldrett
- Proteomics and Metabolomics Facility, University of Nebraska-Lincoln, Lincoln, United States
| | - Sophie Alvarez
- Proteomics and Metabolomics Facility, University of Nebraska-Lincoln, Lincoln, United States
| | - Nicholas T Woods
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, United States
| | - Kyle Hewitt
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, United States
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10
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Resurreccion EP, Fong KW. The Integration of Metabolomics with Other Omics: Insights into Understanding Prostate Cancer. Metabolites 2022; 12:metabo12060488. [PMID: 35736421 PMCID: PMC9230859 DOI: 10.3390/metabo12060488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 02/06/2023] Open
Abstract
Our understanding of prostate cancer (PCa) has shifted from solely caused by a few genetic aberrations to a combination of complex biochemical dysregulations with the prostate metabolome at its core. The role of metabolomics in analyzing the pathophysiology of PCa is indispensable. However, to fully elucidate real-time complex dysregulation in prostate cells, an integrated approach based on metabolomics and other omics is warranted. Individually, genomics, transcriptomics, and proteomics are robust, but they are not enough to achieve a holistic view of PCa tumorigenesis. This review is the first of its kind to focus solely on the integration of metabolomics with multi-omic platforms in PCa research, including a detailed emphasis on the metabolomic profile of PCa. The authors intend to provide researchers in the field with a comprehensive knowledge base in PCa metabolomics and offer perspectives on overcoming limitations of the tool to guide future point-of-care applications.
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Affiliation(s)
- Eleazer P. Resurreccion
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY 40506, USA;
| | - Ka-wing Fong
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY 40506, USA;
- Markey Cancer Center, University of Kentucky, Lexington, KY 40506, USA
- Correspondence: ; Tel.: +1-859-562-3455
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PDK4 Constitutes a Novel Prognostic Biomarker and Therapeutic Target in Gastric Cancer. Diagnostics (Basel) 2022; 12:diagnostics12051101. [PMID: 35626257 PMCID: PMC9139696 DOI: 10.3390/diagnostics12051101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/05/2022] [Accepted: 04/20/2022] [Indexed: 02/04/2023] Open
Abstract
Gastric cancer (GC) is one of the most prevalent and deadly malignancies worldwide. We aimed to assess the functional role and clinical significance of pyruvate dehydrogenase kinase (PDK) in GC and explored the underlying mechanisms. The bioinformatics method was used to investigate the expression of PDKs in GC, the effect on clinical outcomes, enriched pathways, interactive network, and the correlation between PDK4 and immune infiltration. Next, PDK expression in the GC cells and tissues were verified by qRT-PCR and western blotting. A Cell Counting Kit-8 (CCK8), colony-formation, Flow cytometry, Transwell and wound healing assays were carried out to evaluate the influence of PDK4 on cell proliferation, invasion and migration. Among PDKs, PDK4 expression was aberrant in GC and identified as an independent prognostic factor. GO analysis, GSEA, and PPI showed that PDK4 expression may regulate cell adhesion, metal ion transport, synaptic activity, and cancer cell metabolism in GC. Analyses of immune infiltration showed that PDK4 correlated with the abundant expression of various immunocytes. Finally, we verified that upregulation of PDK4 expression enhanced the ability of GC cells to proliferate, migrate, and invade. In conclusion, PDK4 was identified as a potential candidate diagnostic biomarker and therapeutic target for GC patients.
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