1
|
David JJ, Kannan B, Pandi C, Jayaseelan VP, Vasagam JM, Arumugam P. Increased SEC14L2 expression is associated with clinicopathological features and worse prognosis in oral squamous cell carcinoma. Odontology 2024:10.1007/s10266-024-00929-x. [PMID: 38575815 DOI: 10.1007/s10266-024-00929-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/13/2024] [Indexed: 04/06/2024]
Abstract
Abnormal expression of SEC14L2 has been implicated in many human cancers. However, the role of SEC14L2 in oral squamous cell carcinoma (OSCC) remains unclear. Therefore, this study aimed to evaluate the expression and prognostic roles of SEC14L2 in OSCC. OSCC tumors and adjacent non-tumors were collected from OSCC patients and used for SEC14L2 mRNA expression by quantitative reverse transcription PCR (RT-qPCR). Additionally, the expression of SEC14L2 was further analyzed using The Cancer Genome Atlas-Head Neck Squamous Cell Carcinoma (TCGA-HNSCC) dataset to identify its relationship with HNSCC clinical characteristics. The Kaplan-Meier plot was used to assess survival rates, and the Tumor Immune Estimation Resource (TIMER) database was used to examine the correlation between SEC14L2 expression and tumor immune cell infiltration. In silico tools also looked at SEC14L2 involvement in cancer pathways through its protein network. The mRNA and protein levels of SEC14L2 are notably higher in both OSCC and HNSCC tissues compared to adjacent normal tissues. Upregulation of SEC14L2 was associated with advanced tumor stages, grades, metastasis, HPV-negative, and TP53 mutations in cancer patients. In addition, the high expression of SEC14L2 was negatively correlated with the poor survival of cancer patients and the infiltration of diverse immune cells in cancer patients. According to the findings of this investigation, SEC14L2 is significantly elevated in OSCC/HNSCC patients and associated with a worse prognosis. More investigation and clinical studies are required to completely understand the therapeutic potential of SEC14L2 in HNSCC and convert these findings into better patient outcomes.
Collapse
Affiliation(s)
- Jonah Justin David
- Department of Periodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Balachander Kannan
- Molecular Biology Laboratory, Centre for Cellular and Molecular Research, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600077, India
| | - Chandra Pandi
- Molecular Biology Laboratory, Centre for Cellular and Molecular Research, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600077, India
| | - Vijayashree Priyadharsini Jayaseelan
- Clinical Genetics Laboratory, Centre for Cellular and Molecular Research, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Jeevitha Manicka Vasagam
- Department of Periodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Paramasivam Arumugam
- Molecular Biology Laboratory, Centre for Cellular and Molecular Research, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600077, India.
| |
Collapse
|
2
|
Montag K, Ivanov R, Bauer P. Role of SEC14-like phosphatidylinositol transfer proteins in membrane identity and dynamics. FRONTIERS IN PLANT SCIENCE 2023; 14:1181031. [PMID: 37255567 PMCID: PMC10225987 DOI: 10.3389/fpls.2023.1181031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/05/2023] [Indexed: 06/01/2023]
Abstract
Membrane identity and dynamic processes, that act at membrane sites, provide important cues for regulating transport, signal transduction and communication across membranes. There are still numerous open questions as to how membrane identity changes and the dynamic processes acting at the surface of membranes are regulated in diverse eukaryotes in particular plants and which roles are being played by protein interaction complexes composed of peripheral and integral membrane proteins. One class of peripheral membrane proteins conserved across eukaryotes comprises the SEC14-like phosphatidylinositol transfer proteins (SEC14L-PITPs). These proteins share a SEC14 domain that contributes to membrane identity and fulfills regulatory functions in membrane trafficking by its ability to sense, bind, transport and exchange lipophilic substances between membranes, such as phosphoinositides and diverse other lipophilic substances. SEC14L-PITPs can occur as single-domain SEC14-only proteins in all investigated organisms or with a modular domain structure as multi-domain proteins in animals and streptophytes (comprising charales and land plants). Here, we present an overview on the functional roles of SEC14L-PITPs, with a special focus on the multi-domain SEC14L-PITPs of the SEC14-nodulin and SEC14-GOLD group (PATELLINs, PATLs in plants). This indicates that SEC14L-PITPs play diverse roles from membrane trafficking to organism fitness in plants. We concentrate on the structure of SEC14L-PITPs, their ability to not only bind phospholipids but also other lipophilic ligands, and their ability to regulate complex cellular responses through interacting with proteins at membrane sites.
Collapse
Affiliation(s)
- Karolin Montag
- Institute of Botany, Heinrich Heine University, Düsseldorf, Germany
| | - Rumen Ivanov
- Institute of Botany, Heinrich Heine University, Düsseldorf, Germany
| | - Petra Bauer
- Institute of Botany, Heinrich Heine University, Düsseldorf, Germany
- Center of Excellence on Plant Sciences (CEPLAS), Germany
| |
Collapse
|
3
|
Xu Q, Yan X, Han Z, Jin X, Jin Y, Sun H, Liang J, Zhang S. Immune Cell Infiltration and Relevant Gene Signatures in the Tumor Microenvironment that Significantly Associates With the Prognosis of Patients With Breast Cancer. Front Mol Biosci 2022; 9:823911. [PMID: 35281270 PMCID: PMC8905140 DOI: 10.3389/fmolb.2022.823911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/04/2022] [Indexed: 12/12/2022] Open
Abstract
Breast cancer is the most common malignancy and the leading cause of cancer-related deaths in women. Recent studies have investigated the prognostic value of the tumor microenvironment (TME)-related genes in breast cancer. The purpose of this research is to identify the immune-associated prognostic signature for breast cancer evaluate the probability of their prognostic value and compare the current staging system. In this study, we comprehensively evaluated the infiltration patterns of TME in 1,077 breast cancer patients downloaded from TCGA by applying the ssGSEA method to the transcriptome of these patients. Thus, generated two groups of immune cell infiltration. Based on two groups of low infiltration and high infiltration immune cell groups, 983 common differentially expressed genes were found using the limma algorithm. In addition, studying potential mechanisms, the GSEA method was used to indicate some pathways with remarkable enrichment in two clusters of immune cell infiltration. Finally, the seven immune-associated hub genes with survival as prognostic signatures were identified by using univariate Cox, survival, and LASSO analyses and constructed a TME score. The prognostic value of the TME score was self-validated in the TCGA cohort and further validated in an external independent set from METABRIC and GEO database by time-dependent survival receiver operation. Univariate and multivariate analyses of clinicopathological characteristics indicated that the TME score was an independent prognostic factor. In conclusion, the proposed TME score model should be considered as a prognostic factor, similar to the current TNM stage, and the seven immune-related genes can be a valuable potential biomarker for breast cancer.
Collapse
|
4
|
Arjama M, Mehnath S, Rajan M, Jeyaraj M. Engineered Hyaluronic Acid-Based Smart Nanoconjugates for Enhanced Intracellular Drug Delivery. J Pharm Sci 2021; 112:1603-1614. [PMID: 34678274 DOI: 10.1016/j.xphs.2021.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 12/20/2022]
Abstract
Bacterial polysaccharides can be easily modified to offer dual stimuli-responsive drug delivery systems with double targeting potential. In this research work, bacterial polysaccharides hyaluronic acid (HA) were functionalized with α-tocopherol polyethylene glycol succinate (TPGS) and cholic acid (CA) to form multifunctional polysaccharides nanoconjugates (TPGS-HA-CA). Smart nanoconjugates were synthesized by forming a redox-responsive disulfide bond, and it is composed of double targeting ligands. Doxorubicin (DOX) encapsulated smart nanoconjugates were exhibited an average size of 200 nm with a uniform core-shell structure. It serves the pH-responsive side chain modulation of TPGS-HA-CA, which affords a high degree of swelling at acidic pH. Under the pH 5.0 it shows 57% of release due to the side chain modulation of C-H/N-H. Polysaccharides nanoconjugates exhibited the double stimuli-responsive drug delivery by rapid disassembly of disulfide linkage, which exhibited 72% drug release (pH 5.0+GSH 10 mM). In cytotoxic studies, DOX@TPGS-HA-CA exhibited a higher cytotoxic effect compared to DOX. Hyaluronic acid functionalization with CA, TPGS increases cell internalization, and dual stimuli activity promotes more cell death. Overall, multifunctional polysaccharides hydrogel nanoconjugates is a prospective material that has great potential for targeting breast cancer therapy.
Collapse
Affiliation(s)
- Mukherjee Arjama
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 25, Tamil Nadu, India
| | - Sivaraj Mehnath
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 25, Tamil Nadu, India
| | - Mariappan Rajan
- Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 21, Tamil Nadu, India
| | - Murugaraj Jeyaraj
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 25, Tamil Nadu, India.
| |
Collapse
|
5
|
Hickey TE, Selth LA, Chia KM, Laven-Law G, Milioli HH, Roden D, Jindal S, Hui M, Finlay-Schultz J, Ebrahimie E, Birrell SN, Stelloo S, Iggo R, Alexandrou S, Caldon CE, Abdel-Fatah TM, Ellis IO, Zwart W, Palmieri C, Sartorius CA, Swarbrick A, Lim E, Carroll JS, Tilley WD. The androgen receptor is a tumor suppressor in estrogen receptor-positive breast cancer. Nat Med 2021; 27:310-320. [PMID: 33462444 DOI: 10.1038/s41591-020-01168-7] [Citation(s) in RCA: 116] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 11/03/2020] [Indexed: 01/28/2023]
Abstract
The role of the androgen receptor (AR) in estrogen receptor (ER)-α-positive breast cancer is controversial, constraining implementation of AR-directed therapies. Using a diverse, clinically relevant panel of cell-line and patient-derived models, we demonstrate that AR activation, not suppression, exerts potent antitumor activity in multiple disease contexts, including resistance to standard-of-care ER and CDK4/6 inhibitors. Notably, AR agonists combined with standard-of-care agents enhanced therapeutic responses. Mechanistically, agonist activation of AR altered the genomic distribution of ER and essential co-activators (p300, SRC-3), resulting in repression of ER-regulated cell cycle genes and upregulation of AR target genes, including known tumor suppressors. A gene signature of AR activity positively predicted disease survival in multiple clinical ER-positive breast cancer cohorts. These findings provide unambiguous evidence that AR has a tumor suppressor role in ER-positive breast cancer and support AR agonism as the optimal AR-directed treatment strategy, revealing a rational therapeutic opportunity.
Collapse
Affiliation(s)
- Theresa E Hickey
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Luke A Selth
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
- Flinders Health and Medical Research Institute, Flinders University, Adelaide, South Australia, Australia
- Freemason's Foundation Centre for Men's Health, University of Adelaide, Adelaide, South Australia, Australia
| | - Kee Ming Chia
- Garvan Institute of Medical Research & St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Geraldine Laven-Law
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Heloisa H Milioli
- Garvan Institute of Medical Research & St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Daniel Roden
- Garvan Institute of Medical Research & St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Shalini Jindal
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Mun Hui
- Garvan Institute of Medical Research & St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | | | - Esmaeil Ebrahimie
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Stephen N Birrell
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Suzan Stelloo
- Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
- Oncode Institute, Radboud University Nijmegen, Nijmegen, the Netherlands
| | - Richard Iggo
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
- Institut Bergonié, University of Bordeaux, Bordeaux, France
| | - Sarah Alexandrou
- Garvan Institute of Medical Research & St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - C Elizabeth Caldon
- Garvan Institute of Medical Research & St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | | | | | - Wilbert Zwart
- Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Carlo Palmieri
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool & Clatterbridge Centre NHS Foundation Trust, Liverpool, UK
| | | | - Alex Swarbrick
- Garvan Institute of Medical Research & St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Elgene Lim
- Garvan Institute of Medical Research & St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Jason S Carroll
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Wayne D Tilley
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia.
- Freemason's Foundation Centre for Men's Health, University of Adelaide, Adelaide, South Australia, Australia.
| |
Collapse
|
6
|
Circulating Exosomal MicroRNA-1307-5p as a Predictor for Metastasis in Patients with Hepatocellular Carcinoma. Cancers (Basel) 2020; 12:cancers12123819. [PMID: 33352935 PMCID: PMC7766543 DOI: 10.3390/cancers12123819] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 12/15/2020] [Indexed: 02/08/2023] Open
Abstract
Simple Summary Exosomal microRNAs (exo-miRs) significantly contribute to cancer metastasis. However, few studies have investigated the role of exosomes as metastasis mediators in hepatocellular carcinoma (HCC) despite recent advancements in liquid biopsy. We aimed to identify pro-metastatic circulating exo-miRs potentially predicting metastasis onset in HCC through comprehensive and systematic integrative analyses of plasma exo-miR sequencing data and publicly available RNA expression datasets, and accordingly propose a potential mechanism of action of pro-metastatic miRs, including promoting epithelial–mesenchymal transition (EMT). We found that circulating exo-miR-1307-5p is a predictive marker for metastasis in patients with HCC, and EMT promotion through SEC14L2 and ENG downregulation could be the potential downstream pathway of miR-1307-5p. We believe that our study makes a significant contribution to the literature because our findings provide novel insights into the role of circulating exo-miRs in the pathogenesis and progression of HCC and suggest that exo-miRs are a potential treatment target in HCC. Abstract Exosomal microRNAs (exo-miRs) contribute to cancer metastasis. To identify pro-metastatic circulating exo-miRs in hepatocellular carcinoma (HCC), next-generation sequencing-based plasma exo-miR profiles of 14 patients with HCC (eight non-metastatic and six with metastasis within 1 year of follow-up) were analyzed. Sixty-one miRs were significantly overexpressed among patients with metastatic HCC. Candidate miRs were selected through integrative analyses of two different public expression datasets, GSE67140 and The Cancer Genome Atlas liver hepatocellular carcinoma (TCGA_LIHC). Integrative analyses revealed 3 of 61 miRs (miR-106b-5p, miR-1307-5p, and miR-340-5p) commonly overexpressed both in metastasis and vascular invasion groups, with prognostic implications. Validation was performed using stored blood samples of 150 patients with HCC. Validation analysis showed that circulating exo-miR-1307-5p was significantly overexpressed in the metastasis group (p = 0.04), as well as in the vascular invasion and tumor recurrence groups. Circulating exo-miR-1307-5p expression was significantly correlated with tumor stage progression (p < 0.0001). Downstream signaling pathways of miR-1307 were predicted using TargetScan and Ingenuity Pathway Analysis. On comprehensive bioinformatics analysis, the downstream pathway of miR-1307-5p, promoting epithelial–mesenchymal transition (EMT), showed SEC14L2 and ENG downregulation. Our results show that circulating exo-miR-1307-5p promotes metastasis and helps predict metastasis in HCC, and SEC14L2 and ENG are target tumor suppressor genes of miR-1307 that promote EMT.
Collapse
|
7
|
Zhou D, Dong L, Yang L, Ma Q, Liu F, Li Y, Xiong S. Identification and analysis of circRNA-miRNA-mRNA regulatory network in hepatocellular carcinoma. IET Syst Biol 2020; 14:391-398. [PMID: 33399102 PMCID: PMC8687197 DOI: 10.1049/iet-syb.2020.0061] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/28/2020] [Accepted: 09/01/2020] [Indexed: 01/20/2023] Open
Abstract
This study was to identify important circRNA-miRNA-mRNA (ceRNAs) regulatory mechanisms in hepatocellular carcinoma (HCC). The circRNA dataset GSE97332 and miRNA dataset GSE57555 were used for analyses. Functional enrichment analysis for miRNA and target gene was conducted using cluster Profiler. Survival analysis was conducted through R package Survival. The ceRNAs and drug-gene interaction networks were constructed. The ceRNAs network contained five miRNAs including hsa-miR-25-3p, hsa-miR-3692-5p, hsa-miR-4270, hsa-miR-331-3p, and hsa-miR-125a-3p. Among the network, hsa-miR-25-3p targeted the most genes, hsa-miR-3692-5p and hsa-miR-4270 were targeted by more circRNAs than other miRNAs, hsa-circ-0034326 and hsa-circ-0011950 interacted with three miRNAs. Furthermore, target genes, including NRAS, ITGA5, SLC7A1, SEC14L2, SLC12A5, and SMAD2 were obtained in drug-gene interaction network. Survival analysis showed NRAS, ITGA5, SLC7A1, SEC14L2, SLC12A5, and SMAD2 were significantly associated with prognosis of HCC. NRAS, ITGA5, and SMAD2 were significantly enriched in proteoglycans in cancer. Moreover, hsa-circ-0034326 and hsa-circ-0011950 might function as ceRNAs to play key roles in HCC. Furthermore, miR-25-3p, miR-3692-5p, and miR-4270 might be significant for HCC development. NRAS, ITGA5, SEC14L2, SLC12A5, and SMAD2 might be prognostic factors for HCC patients via proteoglycans in cancer pathway. Taken together, the findings will provide novel insight into pathogenesis, selection of therapeutic targets and prognostic factors for HCC.
Collapse
Affiliation(s)
- Daxiang Zhou
- Chongqing Engineering Laboratory of Green Planting and Deep Processing of famous-region drug in the Three Gorges Reservoir Region, College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404120, People's Republic of China
| | - Ling Dong
- Chongqing Center for Drug Certification and Evaluation, Chongqing, 401120 People's Republic of China
| | - Lishan Yang
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, People's Republic of China
| | - Qiang Ma
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, People's Republic of China
| | - Feng Liu
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, People's Republic of China
| | - Yanjie Li
- Chongqing Engineering Laboratory of Green Planting and Deep Processing of famous-region drug in the Three Gorges Reservoir Region, College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404120, People's Republic of China
| | - Shu Xiong
- Department of Basic Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, People's Republic of China.
| |
Collapse
|
8
|
Khadangi F, Azzi A. Vitamin E - The Next 100 Years. IUBMB Life 2018; 71:411-415. [PMID: 30550633 DOI: 10.1002/iub.1990] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/13/2018] [Accepted: 11/24/2018] [Indexed: 12/16/2022]
Abstract
α-Tocopherol is the only tocopherol that has been shown to prevent the human deficiency disease Ataxia with Isolated Vitamin E Deficiency (AVED), and thus it is the only one that, for humans, can be called vitamin E. Vitamin E in addition to preventing AVED has documented immune boosting properties and an activity against nonalcoholic hepatosteatosis and low-grade inflammation. Epidemiological studies indicating that vitamin E could prevent cardiovascular events, neurodegenerative disease, macular degeneration, and cancer were in general not confirmed by clinical intervention studies. Vitamin E and some of its metabolites modulate cell signaling and gene transcription. Future research is needed to achieve a better understanding of the molecular events leading to gene regulation by vitamin E, especially in its phosphorylated form. Isolation and characterization of the vitamin E kinase and vitamin E phosphate phosphatase will help in the understanding of cell regulation processes modulated by vitamin E. A clarification of the pathogenesis of AVED remains an important goal to be achieved. © 2018 IUBMB Life, 71(4):411-415, 2019.
Collapse
Affiliation(s)
| | - Angelo Azzi
- Vascular Biology Laboratory, JM USDA-HNRCA at Tufts University, Boston, Massachusetts
| |
Collapse
|
9
|
Björkblom B, Wibom C, Jonsson P, Mörén L, Andersson U, Johannesen TB, Langseth H, Antti H, Melin B. Metabolomic screening of pre-diagnostic serum samples identifies association between α- and γ-tocopherols and glioblastoma risk. Oncotarget 2018; 7:37043-37053. [PMID: 27175595 PMCID: PMC5095057 DOI: 10.18632/oncotarget.9242] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 04/23/2016] [Indexed: 12/25/2022] Open
Abstract
Glioblastoma is associated with poor prognosis with a median survival of one year. High doses of ionizing radiation is the only established exogenous risk factor. To explore new potential biological risk factors for glioblastoma, we investigated alterations in metabolite concentrations in pre-diagnosed serum samples from glioblastoma patients diagnosed up to 22 years after sample collection, and undiseased controls. The study points out a latent biomarker for future glioblastoma consisting of nine metabolites (γ-tocopherol, α-tocopherol, erythritol, erythronic acid, myo-inositol, cystine, 2-keto-L-gluconic acid, hypoxanthine and xanthine) involved in antioxidant metabolism. We detected significantly higher serum concentrations of α-tocopherol (p=0.0018) and γ-tocopherol (p=0.0009) in future glioblastoma cases. Compared to their matched controls, the cases showed a significant average fold increase of α- and γ-tocopherol levels: 1.2 for α-T (p=0.018) and 1.6 for γ-T (p=0.003). These tocopherol levels were associated with a glioblastoma odds ratio of 1.7 (α-T, 95% CI:1.0-3.0) and 2.1 (γ-T, 95% CI:1.2-3.8). Our exploratory metabolomics study detected elevated serum levels of a panel of molecules with antioxidant properties as well as oxidative stress generated compounds. Additional studies are necessary to confirm the association between the observed serum metabolite pattern and future glioblastoma development.
Collapse
Affiliation(s)
- Benny Björkblom
- Department of Chemistry, Umeå University, SE-90187 Umeå, Sweden
| | - Carl Wibom
- Department of Radiation Sciences, Oncology, Umeå University, SE-90187 Umeå, Sweden
| | - Pär Jonsson
- Department of Chemistry, Umeå University, SE-90187 Umeå, Sweden
| | - Lina Mörén
- Department of Chemistry, Umeå University, SE-90187 Umeå, Sweden
| | - Ulrika Andersson
- Department of Radiation Sciences, Oncology, Umeå University, SE-90187 Umeå, Sweden
| | - Tom Børge Johannesen
- Cancer Registry of Norway, Institute of Population-Based Cancer Research, N-0304 Oslo, Norway
| | - Hilde Langseth
- Cancer Registry of Norway, Institute of Population-Based Cancer Research, N-0304 Oslo, Norway
| | - Henrik Antti
- Department of Chemistry, Umeå University, SE-90187 Umeå, Sweden
| | - Beatrice Melin
- Department of Radiation Sciences, Oncology, Umeå University, SE-90187 Umeå, Sweden
| |
Collapse
|
10
|
α-Tocopherol succinate enhances pterostilbene anti-tumor activity in human breast cancer cells in vivo and in vitro. Oncotarget 2017; 9:4593-4606. [PMID: 29435127 PMCID: PMC5796998 DOI: 10.18632/oncotarget.23390] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 12/05/2017] [Indexed: 12/29/2022] Open
Abstract
Vitamin E (Vit. E) is considered an essential dietary nutrient for humans and animals. An enormous body of evidence indicates the biological and protective effects of Vit. E consumption. Tocopherol-associated protein (TAP) is a major tocopherol-binding protein affecting Vit. E stimulation and downstream signaling transduction. However, how Vit. E utilizes TAP as an anti-cancer mechanism remains unclear. Microarray analysis of signature gene profiles in breast cancer cells treated with α-tocopheryl succinate (α-TOS, a Vit. E isoform) resulted in cell cycle arrest and anti-cancer activity in breast cancer cells. Pterostilbene (PS), a natural dietary antioxidant found in blueberries, in combination with α-TOS synergistically maximized breast cancer cell growth inhibition by disrupting signal transduction, transcription factors and cell cycle proteins. In a xenograft mouse model, PS treatment with Vit. E inhibited breast tumor growth and cell invasion, which were evaluated using our recently developed circulating tumor cell (CTC) detection assay. Because dietary Vit. E and PS supplementation contributed to preventative and therapeutic effects in vitro and in vivo, this combination may benefit breast cancer therapy in the clinic.
Collapse
|
11
|
Abstract
Four tocopherols are available in nature and are absorbed with the diet, but only one RRR-α-tocopherol satisfies the criteria of being a vitamin. The biological activity of the different tocopherols studied in the rat by the resorption-gestation test has been inconsistently extrapolated to human beings where the tocopherols have no influence on a successful pregnancy. Diminution of RRR-α-tocopherol intake results in diseases characterized by ataxia, whose pathogenetic mechanism, despite vigorous claims, has not been clarified. The calculation of the Daily Reference Intake (DRI), necessary to prevent disease, is based on an obsolete test, the peroxide-induced erythrocyte hemolysis, called the gold standard, but of highly questioned validity. If many epidemiological studies have given positive results, showing prevention by high vitamin E containing diets of cardiovascular events, neurodegenerative disease, macular degeneration and cancer, the clinical confirmatory intervention studies were mostly negative. On the positive side, besides preventing vitamin E deficiency diseases, vitamin E has shown efficacy as anti-inflammatory and immune boosting compound. It has also shown some efficacy in protecting against nonalcoholic hepato-steatosis. At a molecular level, vitamin E and some of its metabolites have shown capacity of regulating cell signaling and modulating gene transcription.
Collapse
Affiliation(s)
- Angelo Azzi
- Vascular Biology Laboratory, JM USDA-HNRCA at Tufts University, Boston, MA 02111, USA.
| |
Collapse
|
12
|
Wang X, Ring BZ, Seitz RS, Ross DT, Woolf K, Beck RA, Hicks DG, Yeh S. Expression of a-Tocopherol-Associated protein (TAP) is associated with clinical outcome in breast cancer patients. BMC Clin Pathol 2015; 15:21. [PMID: 26664297 PMCID: PMC4673715 DOI: 10.1186/s12907-015-0021-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 11/30/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The role of vitamin E in breast cancer prevention and treatment has been widely investigated, and the different tocopherols that comprise this nutrient have been shown to have divergent associations with cancer outcome. Our previous studies have shown that α-Tocopherol-associated protein (TAP), a vitamin E binding protein, may function as a tumor suppressor-like factor in breast carcinogenesis. The current study addresses the association of TAP expression with breast cancer clinical outcomes. METHODS Immunohistochemical stain for TAP was applied to a tissue microarray from a breast cancer cohort consisting of 271 patients with a median follow-up time of 5.2 years. The expression of TAP in tumor cells was compared with patient's clinical outcome at 5 years after diagnosis. The potential role of TAP in predicting outcome was also assessed in clinically relevant subsets of the cohort. In addition, we compared TAP expression and Oncotype DX scores in an independent breast cancer cohort consisting of 71 cases. RESULTS We demonstrate that the expression of TAP was differentially expressed within the breast cancer cohort, and that ER+/PR ± tumors were more likely to exhibit TAP expression. TAP expression was associated with an overall lower recurrence rate and a better 5-year survival rate. This association was primarily in patients with ER+ tumors; exploratory analysis showed that this association was strongest in patients with node-positive tumors and was independent of stage and treatment with chemotherapy. TAP expression in ER/PR negative or triple negative tumors had no association with clinical outcome. In addition, we did not observe an association between TAP expression and Oncotype DX recurrence score. CONCLUSIONS The significant positive association we found for α-Tocopherol-associated protein with outcome in breast cancer may help to better define and explain studies addressing α-tocopherol's association with cancer risk and outcome. Additionally, further studies to validate and extend these findings may allow TAP to serve as a breast-specific prognostic marker in breast cancer patients, especially in those patients with ER+ tumors.
Collapse
Affiliation(s)
- Xi Wang
- />Department of Pathology, University of Rochester Medical Center, Rochester, NY 14642 USA
| | - Brian Z. Ring
- />Institute for Genomic and Personalized Medicine, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | | | | | - Kirsten Woolf
- />Department of Pathology, University of Rochester Medical Center, Rochester, NY 14642 USA
| | | | - David G. Hicks
- />Department of Pathology, University of Rochester Medical Center, Rochester, NY 14642 USA
| | - Shuyuan Yeh
- />Department of Pathology, University of Rochester Medical Center, Rochester, NY 14642 USA
| |
Collapse
|
13
|
Zingg JM, Azzi A, Meydani M. Induction of VEGF Expression by Alpha-Tocopherol and Alpha-Tocopheryl Phosphate via PI3Kγ/PKB and hTAP1/SEC14L2-Mediated Lipid Exchange. J Cell Biochem 2015; 116:398-407. [DOI: 10.1002/jcb.24988] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Accepted: 09/26/2014] [Indexed: 12/16/2022]
Affiliation(s)
- Jean-Marc Zingg
- Vascular Biology Laboratory; JM USDA-Human Nutr. Res. Ctr. On Aging; Tufts University; Boston MA 02111 USA
| | - Angelo Azzi
- Vascular Biology Laboratory; JM USDA-Human Nutr. Res. Ctr. On Aging; Tufts University; Boston MA 02111 USA
| | - Mohsen Meydani
- Vascular Biology Laboratory; JM USDA-Human Nutr. Res. Ctr. On Aging; Tufts University; Boston MA 02111 USA
| |
Collapse
|
14
|
Ren YX, Yang J, Zhang LJ, Sun RM, Zhao LF, Zhang M, Chen Y, Ma J, Qiao K, Sun QM, Long HT, Huang YC, Li XJ. Downregulation of expression of transporters associated with antigen processing 1 and 2 and human leukocyte antigen I and its effect on immunity in nasopharyngeal carcinoma patients. Mol Clin Oncol 2013; 2:51-58. [PMID: 24649307 DOI: 10.3892/mco.2013.194] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 07/31/2013] [Indexed: 11/06/2022] Open
Abstract
The human leukocyte antigen (HLA)-I and antigen-processing machinery (APM) are crucial in the anti-cancer immune response. The aim of this study was to assess the clinical significance of the APM components [transporters associated with antigen processing (TAP)-1 and -2 and HLA-I] in nasopharyngeal carcinoma (NPC). A total of 58 NPC specimens and 20 healthy specimens used as control were evaluated by semiquantitative immunohistochemistry for three APM components (TAP-1, TAP-2 and HLA-I). The expression of the APM components in NPC was downregulated. CD4+ and CD8+ T cells were measured by flow cytometry and IL-10 was measured by ELISA. The number of CD8+ T cells and the expression of IL-10 were higher and the number of CD4+ T cells was lower in NPC, compared to the controls. The number of CD8+ T cells and the expression of IL-10 were negatively correlated with TAP-1, TAP-2 and HLA-I expression. The clinical phase, lymph node metastasis, distant metastasis, pathological type, TAP-1 expression, TAP-2 expression and HLA-I expression were identified as prognostic factors by the Kaplan-Meier analysis. A multivariate analysis using a Cox regression model indicated that distant metastasis and the downregulation of HLA-I expression were independent unfavorable prognostic factors. In conclusion, the lower expression of HLA-I induced immunosuppression in NPC patients and was associated with a poor prognosis.
Collapse
Affiliation(s)
- Yan-Xin Ren
- Head and Neck Tumor Research Center, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118
| | - Jie Yang
- Head and Neck Tumor Research Center, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118
| | - Li-Juan Zhang
- Departments of Pathology, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118
| | - Rui-Mei Sun
- Head and Neck Tumor Research Center, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118
| | - Liu-Fang Zhao
- Head and Neck Tumor Research Center, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118
| | - Ming Zhang
- Radiotherapy, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118
| | - Yun Chen
- Departments of Pathology, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118
| | - Jing Ma
- Department of Otolaryngology, Kunming Children's Hospital, Kunming, Yunnan 650034
| | - Kun Qiao
- Head and Neck Tumor Research Center, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118
| | - Qiang-Ming Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Hai-Ting Long
- Institute of Medical Biology, Chinese Academy of Medical Sciences, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Yun-Chao Huang
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Xiao-Jiang Li
- Head and Neck Tumor Research Center, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118
| |
Collapse
|
15
|
Why tocotrienols work better: insights into the in vitro anti-cancer mechanism of vitamin E. GENES AND NUTRITION 2011; 7:29-41. [PMID: 21505906 DOI: 10.1007/s12263-011-0219-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Accepted: 03/24/2011] [Indexed: 12/23/2022]
Abstract
The selective constraint of liver uptake and the sustained metabolism of tocotrienols (T3) demonstrate the need for a prompt detoxification of this class of lipophilic vitamers, and thus the potential for cytotoxic effects in hepatic and extra-hepatic tissues. Hypomethylated (γ and δ) forms of T3 show the highest in vitro and in vivo metabolism and are also the most potent natural xenobiotics of the entire vitamin E family of compounds. These stimulate a stress response with the induction of detoxification and antioxidant genes. Depending on the intensity of this response, these genes may confer cell protection or alternatively they stimulate a senescence-like phenotype with cell cycle inhibition or even mitochondrial toxicity and apoptosis. In cancer cells, the uptake rate and thus the cell content of these vitamers is again higher for the hypomethylated forms, and it is the critical factor that drives the dichotomy between protection and toxicity responses to different T3 forms and doses. These aspects suggest the potential for marked biological activity of hypomethylated "highly metabolized" T3 that may result in cytoprotection and cancer prevention or even chemotherapeutic effects. Cytotoxicity and metabolism of hypomethylated T3 have been extensively investigated in vitro using different cell model systems that will be discussed in this review paper as regard molecular mechanisms and possible relevance in cancer therapy.
Collapse
|
16
|
Nile AH, Bankaitis VA, Grabon A. Mammalian diseases of phosphatidylinositol transfer proteins and their homologs. CLINICAL LIPIDOLOGY 2010; 5:867-897. [PMID: 21603057 PMCID: PMC3097519 DOI: 10.2217/clp.10.67] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Inositol and phosphoinositide signaling pathways represent major regulatory systems in eukaryotes. The physiological importance of these pathways is amply demonstrated by the variety of diseases that involve derangements in individual steps in inositide and phosphoinositide production and degradation. These diseases include numerous cancers, lipodystrophies and neurological syndromes. Phosphatidylinositol transfer proteins (PITPs) are emerging as fascinating regulators of phosphoinositide metabolism. Recent advances identify PITPs (and PITP-like proteins) to be coincidence detectors, which spatially and temporally coordinate the activities of diverse aspects of the cellular lipid metabolome with phosphoinositide signaling. These insights are providing new ideas regarding mechanisms of inherited mammalian diseases associated with derangements in the activities of PITPs and PITP-like proteins.
Collapse
Affiliation(s)
- Aaron H Nile
- Department of Cell & Developmental Biology, Lineberger Comprehensive Cancer Center School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-27090, USA
| | - Vytas A Bankaitis
- Department of Cell & Developmental Biology, Lineberger Comprehensive Cancer Center School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-27090, USA
| | - Aby Grabon
- Department of Cell & Developmental Biology, Lineberger Comprehensive Cancer Center School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-27090, USA
| |
Collapse
|
17
|
Kempna P, Ricciarelli R, Azzi A, Zingg JM. Alternative splicing and gene polymorphism of the human TAP3/SEC14L4 gene. Mol Biol Rep 2009; 37:3503-8. [PMID: 20012369 DOI: 10.1007/s11033-009-9943-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Accepted: 11/24/2009] [Indexed: 12/16/2022]
Abstract
Three closely related human SEC14p-like proteins (hTAP1, hTAP2, hTAP3, or SEC14L2, SEC14L3, SEC14L4, respectively) have been described that are related to the Saccharomyces cerevisiae SEC14 protein. These proteins may participate in intracellular lipid transport and influence regulatory lipid-dependent events. Here we report the isolation of an alternatively spliced hTAP3 cDNA and a polymorphism within the coding region of the hTAP3/SEC14L4 gene.
Collapse
Affiliation(s)
- Petra Kempna
- Department of Pediatric Endocrinology and Diabetology, University Children's Hospital, Bern, Switzerland
| | | | | | | |
Collapse
|