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Gkotinakou IM, Mylonis I, Tsakalof A. Vitamin D and Hypoxia: Points of Interplay in Cancer. Cancers (Basel) 2022; 14:cancers14071791. [PMID: 35406562 PMCID: PMC8997790 DOI: 10.3390/cancers14071791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 11/16/2022] Open
Abstract
Vitamin D is a hormone that, through its action, elicits a broad spectrum of physiological responses ranging from classic to nonclassical actions such as bone morphogenesis and immune function. In parallel, many studies describe the antiproliferative, proapoptotic, antiangiogenic effects of calcitriol (the active hormonal form) that contribute to its anticancer activity. Additionally, epidemiological data signify the inverse correlation between vitamin D levels and cancer risk. On the contrary, tumors possess several adaptive mechanisms that enable them to evade the anticancer effects of calcitriol. Such maladaptive processes are often a characteristic of the cancer microenvironment, which in solid tumors is frequently hypoxic and elicits the overexpression of Hypoxia-Inducible Factors (HIFs). HIF-mediated signaling not only contributes to cancer cell survival and proliferation but also confers resistance to anticancer agents. Taking into consideration that calcitriol intertwines with signaling events elicited by the hypoxic status cells, this review examines their interplay in cellular signaling to give the opportunity to better understand their relationship in cancer development and their prospect for the treatment of cancer.
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Affiliation(s)
| | - Ilias Mylonis
- Correspondence: (I.M.); (A.T.); Tel.: +30-2410-685578 (I.M. & A.T)
| | - Andreas Tsakalof
- Correspondence: (I.M.); (A.T.); Tel.: +30-2410-685578 (I.M. & A.T)
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252
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Muñoz-Urbano M, Quintero-González DC, Vasquez G. T cell metabolism and possible therapeutic targets in systemic lupus erythematosus: a narrative review. Immunopharmacol Immunotoxicol 2022; 44:457-470. [PMID: 35352607 DOI: 10.1080/08923973.2022.2055568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In the immunopathogenesis of systemic lupus erythematosus (SLE), there is a dysregulation of specific immune cells, including T cells. The metabolic reprogramming in T cells causes different effects. Metabolic programs are critical checkpoints in immune responses and are involved in the etiology of autoimmune disease. For instance, resting lymphocytes generate energy through oxidative phosphorylation (OXPHOS) and fatty acid oxidation (FAO), whereas activated lymphocytes rapidly shift to the glycolytic pathway. Specifically, mitochondrial dysfunction, oxidative stress, abnormal metabolism (including glucose, lipid, and amino acid metabolism), and mTOR signaling are hallmarks of T lymphocyte metabolic dysfunction in SLE. Herein it is summarized how metabolic defects contribute to T cell responses in SLE, and some epigenetic alterations involved in the disease. Finally, it is shown how metabolic defects could be modified therapeutically.
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Affiliation(s)
| | | | - Gloria Vasquez
- Rheumatology Section, Universidad de Antioquia, Medellín, Colombia.,Grupo de Inmunología Celular e Inmunogenética, Universidad de Antioquia, Medellín, Colombia
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YTHDF1 upregulation mediates hypoxia-dependent breast cancer growth and metastasis through regulating PKM2 to affect glycolysis. Cell Death Dis 2022; 13:258. [PMID: 35319018 PMCID: PMC8940925 DOI: 10.1038/s41419-022-04711-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 02/15/2022] [Accepted: 03/03/2022] [Indexed: 02/05/2023]
Abstract
N6-methyladenosine modification is the most common RNA modification mechanism in mammals. YTHDF1, a m6A reader, can recognize the m6A of mRNAs to facilitate the interaction with the mRNA ribosome assembly and recruitment of translation initiators to promote translation. From a clinical perspective, YTHDF1 upregulation is frequently observed in breast cancer, but its involvement in those cancer-related events is still unclear. Here we report that YTHDF1 is a cancer driver capable of facilitating the proliferation and invasion of breast cancer cells as well as enhancing tumorigenicity and metastasis through promoting glycolysis. We found that tumor hypoxia can transcriptionally induce HIF1α and post-transcriptionally inhibit the expression of miR-16-5p to promote YTHDF1 expression, which could sequentially enhance tumor glycolysis by upregulating PKM2 and eventually increase the tumorigenesis and metastasis potential of breast cancer cells. Inhibiting YTHDF1 via gene knockdown or miR-16-5p would significantly abolish YTHDF1-dependent tumor growth and metastasis. In summary, we identified the role of the YTHDF1-PKM2 signal axis in the occurrence and development of breast cancer, which can be used as a potential target for breast cancer treatment.
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254
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Doering KRS, Cheng X, Milburn L, Ratnappan R, Ghazi A, Miller DL, Taubert S. Nuclear hormone receptor NHR-49 acts in parallel with HIF-1 to promote hypoxia adaptation in Caenorhabditis elegans. eLife 2022; 11:e67911. [PMID: 35285794 PMCID: PMC8959602 DOI: 10.7554/elife.67911] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 03/12/2022] [Indexed: 01/06/2023] Open
Abstract
The response to insufficient oxygen (hypoxia) is orchestrated by the conserved hypoxia-inducible factor (HIF). However, HIF-independent hypoxia response pathways exist that act in parallel with HIF to mediate the physiological hypoxia response. Here, we describe a hypoxia response pathway controlled by Caenorhabditis elegans nuclear hormone receptor NHR-49, an orthologue of mammalian peroxisome proliferator-activated receptor alpha (PPARα). We show that nhr-49 is required for animal survival in hypoxia and is synthetic lethal with hif-1 in this context, demonstrating that these factors act in parallel. RNA-seq analysis shows that in hypoxia nhr-49 regulates a set of genes that are hif-1-independent, including autophagy genes that promote hypoxia survival. We further show that nuclear hormone receptor nhr-67 is a negative regulator and homeodomain-interacting protein kinase hpk-1 is a positive regulator of the NHR-49 pathway. Together, our experiments define a new, essential hypoxia response pathway that acts in parallel with the well-known HIF-mediated hypoxia response.
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Affiliation(s)
- Kelsie RS Doering
- Graduate Program in Medical Genetics, University of British ColumbiaVancouverCanada
- British Columbia Children's Hospital Research InstituteVancouverCanada
- Centre for Molecular Medicine and Therapeutics, The University of British ColumbiaVancouverCanada
| | - Xuanjin Cheng
- British Columbia Children's Hospital Research InstituteVancouverCanada
- Centre for Molecular Medicine and Therapeutics, The University of British ColumbiaVancouverCanada
- Department of Medical Genetics, University of British ColumbiaVancouverCanada
| | - Luke Milburn
- Department of Biochemistry, University of Washington School of MedicineSeattleUnited States
| | - Ramesh Ratnappan
- Department of Pediatrics, University of Pittsburgh School of MedicinePittsburghUnited States
| | - Arjumand Ghazi
- Department of Pediatrics, University of Pittsburgh School of MedicinePittsburghUnited States
- Departments of Developmental Biology and Cell Biology and Physiology, University of Pittsburgh School of MedicinePittsburghUnited States
| | - Dana L Miller
- Department of Biochemistry, University of Washington School of MedicineSeattleUnited States
| | - Stefan Taubert
- Graduate Program in Medical Genetics, University of British ColumbiaVancouverCanada
- British Columbia Children's Hospital Research InstituteVancouverCanada
- Centre for Molecular Medicine and Therapeutics, The University of British ColumbiaVancouverCanada
- Department of Medical Genetics, University of British ColumbiaVancouverCanada
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Wang B, Li ZL, Zhang YL, Wen Y, Gao YM, Liu BC. Hypoxia and chronic kidney disease. EBioMedicine 2022; 77:103942. [PMID: 35290825 PMCID: PMC8921539 DOI: 10.1016/j.ebiom.2022.103942] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/22/2022] [Accepted: 03/01/2022] [Indexed: 12/12/2022] Open
Abstract
Hypoxia is an inherent pathophysiological characteristic of chronic kidney disease (CKD), which is closely associated with the development of renal inflammation and fibrosis, as well as CKD-related complications such as anaemia, cardiovascular events, and sarcopenia. This review outlined the characteristics of oxygen supply in the kidney, changes in oxygen metabolism and factors leading to hypoxia in CKD. Mechanistically, we discussed how hypoxia contributes to renal injury as well as complications associated with CKD. Furthermore, we also discussed the potential therapeutic approaches that target chronic hypoxia, as well as the challenges in the study of oxygen homeostasis imbalance in CKD.
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Affiliation(s)
- Bin Wang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Zuo-Lin Li
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Yi-Lin Zhang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Yi Wen
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Yue-Ming Gao
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China.
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256
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Mao CY, Zhang TT, Li DJ, Zhou E, Fan YQ, He Q, Wang CQ, Zhang JF. Extracellular vesicles from hypoxia-preconditioned mesenchymal stem cells alleviates myocardial injury by targeting thioredoxin-interacting protein-mediated hypoxia-inducible factor-1α pathway. World J Stem Cells 2022; 14:183-199. [PMID: 35432732 PMCID: PMC8963381 DOI: 10.4252/wjsc.v14.i2.183] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/29/2021] [Accepted: 01/25/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Extracellular vesicles (EVs) derived from hypoxia-preconditioned (HP) mesenchymal stem cells (MSCs) have better cardioprotective effects against myocardial infarction (MI) in the early stage than EVs isolated from normoxic (NC)-MSCs. However, the cardioprotective mechanisms of HP-EVs are not fully understood.
AIM To explore the cardioprotective mechanism of EVs derived from HP MSCs.
METHODS We evaluated the cardioprotective effects of HP-EVs or NC-EVs from mouse adipose-derived MSCs (ADSCs) following hypoxia in vitro or MI in vivo, in order to improve the survival of cardiomyocytes (CMs) and restore cardiac function. The degree of CM apoptosis in each group was assessed by the terminal deoxynucleotidyl transferase dUTP nick end-labeling and Annexin V/PI assays. MicroRNA (miRNA) sequencing was used to investigate the functional RNA diversity between HP-EVs and NC-EVs from mouse ADSCs. The molecular mechanism of EVs in mediating thioredoxin-interacting protein (TXNIP) was verified by the dual-luciferase reporter assay. Co-immunoprecipitation, western blotting, and immunofluorescence were performed to determine if TXNIP is involved in hypoxia-inducible factor-1 alpha (HIF-1α) ubiquitination and degradation via the chromosomal region maintenance-1 (CRM-1)-dependent nuclear transport pathway.
RESULTS HP-EVs derived from MSCs reduced both infarct size (necrosis area) and apoptotic degree to a greater extent than NC-EVs from CMs subjected to hypoxia in vitro and mice with MI in vivo. Sequencing of EV-associated miRNAs showed the upregulation of 10 miRNAs predicted to bind TXNIP, an oxidative stress-associated protein. We showed miRNA224-5p, the most upregulated miRNA in HP-EVs, directly combined the 3’ untranslated region of TXNIP and demonstrated its critical protective role against hypoxia-mediated CM injury. Our results demonstrated that MI triggered TXNIP-mediated HIF-1α ubiquitination and degradation in the CRM-1-mediated nuclear transport pathway in CMs, which led to aggravated injury and hypoxia tolerance in CMs in the early stage of MI.
CONCLUSION The anti-apoptotic effects of HP-EVs in alleviating MI and the hypoxic conditions of CMs until reperfusion therapy may partly result from EV miR-224-5p targeting TXNIP.
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Affiliation(s)
- Cheng-Yu Mao
- Department of Cardiology, Shanghai Ninth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200010, China
| | - Tian-Tian Zhang
- Department of Cardiology, Shanghai Ninth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200010, China
| | - Dong-Jiu Li
- Department of Cardiology, Shanghai Ninth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200010, China
| | - En Zhou
- Department of Cardiology, Shanghai Ninth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200010, China
| | - Yu-Qi Fan
- Department of Cardiology, Shanghai Ninth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200010, China
| | - Qing He
- Department of Cardiology, Shanghai Ninth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200010, China
| | - Chang-Qian Wang
- Department of Cardiology, Shanghai Ninth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200010, China
| | - Jun-Feng Zhang
- Department of Cardiology, Shanghai Ninth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200010, China
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257
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Stoica SI, Bleotu C, Ciobanu V, Ionescu AM, Albadi I, Onose G, Munteanu C. Considerations about Hypoxic Changes in Neuraxis Tissue Injuries and Recovery. Biomedicines 2022; 10:481. [PMID: 35203690 PMCID: PMC8962344 DOI: 10.3390/biomedicines10020481] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/06/2022] [Accepted: 02/13/2022] [Indexed: 02/01/2023] Open
Abstract
Hypoxia represents the temporary or longer-term decrease or deprivation of oxygen in organs, tissues, and cells after oxygen supply drops or its excessive consumption. Hypoxia can be (para)-physiological-adaptive-or pathological. Thereby, the mechanisms of hypoxia have many implications, such as in adaptive processes of normal cells, but to the survival of neoplastic ones, too. Ischemia differs from hypoxia as it means a transient or permanent interruption or reduction of the blood supply in a given region or tissue and consequently a poor provision with oxygen and energetic substratum-inflammation and oxidative stress damages generating factors. Considering the implications of hypoxia on nerve tissue cells that go through different ischemic processes, in this paper, we will detail the molecular mechanisms by which such structures feel and adapt to hypoxia. We will present the hypoxic mechanisms and changes in the CNS. Also, we aimed to evaluate acute, subacute, and chronic central nervous hypoxic-ischemic changes, hoping to understand better and systematize some neuro-muscular recovery methods necessary to regain individual independence. To establish the link between CNS hypoxia, ischemic-lesional mechanisms, and neuro-motor and related recovery, we performed a systematic literature review following the" Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA") filtering method by interrogating five international medical renown databases, using, contextually, specific keywords combinations/"syntaxes", with supplementation of the afferent documentation through an amount of freely discovered, also contributive, bibliographic resources. As a result, 45 papers were eligible according to the PRISMA-inspired selection approach, thus covering information on both: intimate/molecular path-physiological specific mechanisms and, respectively, consequent clinical conditions. Such a systematic process is meant to help us construct an article structure skeleton giving a primary objective input about the assembly of the literature background to be approached, summarised, and synthesized. The afferent contextual search (by keywords combination/syntaxes) we have fulfilled considerably reduced the number of obtained articles. We consider this systematic literature review is warranted as hypoxia's mechanisms have opened new perspectives for understanding ischemic changes in the CNS neuraxis tissue/cells, starting at the intracellular level and continuing with experimental research to recover the consequent clinical-functional deficits better.
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Affiliation(s)
- Simona Isabelle Stoica
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila” (UMPCD), 020022 Bucharest, Romania; (S.I.S.); (A.M.I.)
- Teaching Emergency Hospital “Bagdasar-Arseni” (TEHBA), 041915 Bucharest, Romania
| | - Coralia Bleotu
- Stefan S. Nicolau Institute of Virology, 030304 Bucharest, Romania;
| | - Vlad Ciobanu
- Computer Science Department, Politehnica University of Bucharest (PUB), 060042 Bucharest, Romania;
| | - Anca Mirela Ionescu
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila” (UMPCD), 020022 Bucharest, Romania; (S.I.S.); (A.M.I.)
| | - Irina Albadi
- Teaching Emergency County Hospital “Sf. Apostol Andrei”, 900591 Constanta, Romania;
- Faculty of Medicine, “Ovidius” University of Constanta, 900470 Constanta, Romania
| | - Gelu Onose
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila” (UMPCD), 020022 Bucharest, Romania; (S.I.S.); (A.M.I.)
- Teaching Emergency Hospital “Bagdasar-Arseni” (TEHBA), 041915 Bucharest, Romania
| | - Constantin Munteanu
- Teaching Emergency Hospital “Bagdasar-Arseni” (TEHBA), 041915 Bucharest, Romania
- Department of Research, Romanian Association of Balneology, 022251 Bucharest, Romania
- Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
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258
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Estrogen-mediated downregulation of HIF-1α signaling in B lymphocytes influences postmenopausal bone loss. Bone Res 2022; 10:15. [PMID: 35177582 PMCID: PMC8854586 DOI: 10.1038/s41413-022-00189-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 10/18/2021] [Accepted: 12/07/2021] [Indexed: 12/13/2022] Open
Abstract
In the bone marrow, B cells and bone-resorbing osteoclasts colocalize and form a specific microenvironment. How B cells functionally influence osteoclasts and bone architecture is poorly understood. Using genetically modified mice and high-throughput analyses, we demonstrate that prolonged HIF-1α signaling in B cells leads to enhanced RANKL production and osteoclast formation. In addition, deletion of HIF-1α in B cells prevents estrogen deficiency-induced bone loss in mice. Mechanistically, estrogen controls HIF-1α protein stabilization through HSP70-mediated degradation in bone marrow B cells. The stabilization of HIF-1α protein in HSP70-deficient bone marrow B cells promotes RANKL production and osteoclastogenesis. Induction of HSP70 expression by geranylgeranylacetone (GGA) administration alleviates ovariectomy-induced osteoporosis. Moreover, RANKL gene expression has a positive correlation with HIF1A expression in human B cells. In conclusion, HIF-1α signaling in B cells is crucial for the control of osteoclastogenesis, and the HSP70/HIF-1α axis may serve as a new therapeutic target for osteoporosis.
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259
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Li Y, Li YC, Liu XT, Zhang L, Chen YH, Zhao Q, Gao W, Liu B, Yang H, Li P. Blockage of citrate export prevents TCA cycle fragmentation via Irg1 inactivation. Cell Rep 2022; 38:110391. [PMID: 35172156 DOI: 10.1016/j.celrep.2022.110391] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 12/12/2021] [Accepted: 01/24/2022] [Indexed: 12/21/2022] Open
Abstract
The metabolism of activated macrophages relies on aerobic glycolysis, while mitochondrial oxidation is disrupted. In lipopolysaccharide-activated macrophages, the citrate carrier (CIC) exports citrate from mitochondria to enhance glycolytic genes through histone acetylation. CIC inhibition or Slc25a1 knockdown reduces the occupancy of H3K9ac to hypoxia-inducible factor-1α (HIF-1α) binding sites in promoters of glycolytic genes to restrain glycolysis. HIF-1α also transcriptionally upregulates immune-responsive gene 1 for itaconate production, which is inhibited by CIC blocking. Isotopic tracing of [U-13C6] glucose shows that CIC blockage prevents citrate accumulation and itaconate production by reducing glycolytic flux and facilitating metabolic flux in the TCA cycle. Isotopic tracing of [U-13C5] glutamine reveals that CIC inhibition reduces succinate accumulation from glutaminolysis and the gamma-aminobutyric acid shunt by enhancing mitochondrial oxidation. By restraining glycolysis, CIC inhibition increases NAD+ content to ensure mitochondrial biogenesis for oxidative phosphorylation. Furthermore, blockage of citrate export reduces cerebral thrombosis by inactivation of peripheral macrophages.
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Affiliation(s)
- Yi Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China
| | - Yu-Chen Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China
| | - Xiao-Tian Liu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China
| | - Lu Zhang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China
| | - Yi-Hua Chen
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China
| | - Qiong Zhao
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China
| | - Wen Gao
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China
| | - Baolin Liu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China
| | - Hua Yang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China.
| | - Ping Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, No. 24 Tongjia Lane, Nanjing 210009, China.
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曾 秀, 厉 孟, 杨 其, 汪 其, 陈 永, 罗 想, 李 继, 蓝 旭. [Effect of dimethyloxalylglycine on angiogenesis in Choke Ⅱ zone of cross-zone perforator flap and its mechanism]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2022; 36:224-230. [PMID: 35172410 PMCID: PMC8863528 DOI: 10.7507/1002-1892.202107103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To study the effect of dimethyloxalylglycine (DMOG) on angiogenesis in Choke Ⅱ zone of rats cross-zone perforator flaps and its mechanism. METHODS One hundred and twenty-six adult male Sprague Dawley rats were randomly divided into DMOG group, YC-1 group, and control group, with 42 rats in each group. Cross-zone perforator flap model with size of 12 cm×3 cm was made on the back of rats in the three groups. DMOG group was intraperitoneally injected with DMOG (40 mg/kg) at 1 day before operation, 2 hours before operation, and 1, 2, and 3 days after operation; YC-1 group and control group were intraperitoneally injected with YC-1 (10 mg/kg) and the same amount of normal saline at the same time points, respectively. The survival of flap was observed after operation. At 7 days after operation, the survival area of flap in each group was measured and the survival rate of flap was calculated. Flap transmittance test, gelatin-lead oxide angiography, and HE staining were used to observed the angiogenesis in the Choke Ⅱ zone of flaps in each group. Immunohistochemical staining and Western blot were used to detect the expressions of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor 1α (HIF-1α) in Choke Ⅱ zone of flaps in each group. The expressions of VEGF and HIF-1α were also determined by ELISA at 3, 5, and 7 days. RESULTS At 7 days after operation, there was no obvious necrosis at the distal end of the flap in DMOG group, while necrosis occurred in both the control group and YC-1 group, mainly located at the distal end. The flap survival rate of DMOG group was 90.28%±1.37%, which was significantly higher than that of YC-1 group (84.28%±1.45%) and control group (85.83%±1.60%) ( P<0.05). DMOG group had more angiogenesis in Choke Ⅱ zone and the vascular structure was clear and complete. In YC-1 group and control group, the vessels in Choke Ⅱ zone was less and the vascular structure was disordered. The number of vessels was (25.56±1.29)/field in the DMOG group, which was significantly higher than that in the YC-1 group [(7.38±0.54)/field] and the control group [(14.48±0.91)/field] ( P<0.05). At 3, 5, and 7 days after operation, HIF-1α and VEGF expressions in ChokeⅡzone of DMOG group were significantly higher than those in YC-1 group and control group ( P<0.05). CONCLUSION DMOG can promote angiogenesis in Choke Ⅱ zone, accelerate the early angiogenesis of the flap, improve the microcirculation and blood supply in the potential zone of the flap, reduce the injury of flap ischemia and hypoxia, and increase the survival rate of the flap.
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Affiliation(s)
- 秀安 曾
- 甘肃中医药大学第一临床医学院(兰州 730000)The First Clinical Medical College of Gansu University of Traditional Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 孟 厉
- 甘肃中医药大学第一临床医学院(兰州 730000)The First Clinical Medical College of Gansu University of Traditional Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 其兵 杨
- 甘肃中医药大学第一临床医学院(兰州 730000)The First Clinical Medical College of Gansu University of Traditional Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 其苑 汪
- 甘肃中医药大学第一临床医学院(兰州 730000)The First Clinical Medical College of Gansu University of Traditional Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 永新 陈
- 甘肃中医药大学第一临床医学院(兰州 730000)The First Clinical Medical College of Gansu University of Traditional Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 想利 罗
- 甘肃中医药大学第一临床医学院(兰州 730000)The First Clinical Medical College of Gansu University of Traditional Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 继东 李
- 甘肃中医药大学第一临床医学院(兰州 730000)The First Clinical Medical College of Gansu University of Traditional Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
| | - 旭 蓝
- 甘肃中医药大学第一临床医学院(兰州 730000)The First Clinical Medical College of Gansu University of Traditional Chinese Medicine, Lanzhou Gansu, 730000, P. R. China
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261
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Batie M, Kenneth NS, Rocha S. Systems approaches to understand oxygen sensing: how multi-omics has driven advances in understanding oxygen-based signalling. Biochem J 2022; 479:245-257. [PMID: 35119457 PMCID: PMC8883490 DOI: 10.1042/bcj20210554] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/06/2022] [Accepted: 01/10/2022] [Indexed: 12/11/2022]
Abstract
Hypoxia is a common denominator in the pathophysiology of a variety of human disease states. Insight into how cells detect, and respond to low oxygen is crucial to understanding the role of hypoxia in disease. Central to the hypoxic response is rapid changes in the expression of genes essential to carry out a wide range of functions to adapt the cell/tissue to decreased oxygen availability. These changes in gene expression are co-ordinated by specialised transcription factors, changes to chromatin architecture and intricate balances between protein synthesis and destruction that together establish changes to the cellular proteome. In this article, we will discuss the advances of our understanding of the cellular oxygen sensing machinery achieved through the application of 'omics-based experimental approaches.
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Affiliation(s)
- Michael Batie
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L697ZB, U.K
| | - Niall S. Kenneth
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L697ZB, U.K
| | - Sonia Rocha
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L697ZB, U.K
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262
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PBLD inhibits angiogenesis via impeding VEGF/VEGFR2-mediated microenvironmental cross-talk between HCC cells and endothelial cells. Oncogene 2022; 41:1851-1865. [PMID: 35140333 PMCID: PMC8956508 DOI: 10.1038/s41388-022-02197-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 01/02/2022] [Accepted: 01/18/2022] [Indexed: 01/08/2023]
Abstract
Sustained anti-angiogenesis therapy increases the level of tumor hypoxia, leading to increased expression of HIF-1a, thereby contributing to the resistance to anti-angiogenesis therapy in hepatocellular carcinoma (HCC). Here, we report that phenazine biosynthesis-like domain-containing protein (PBLD) inhibits hypoxia-induced angiogenesis via ERK/HIF-1a/VEGF axis in HCC cells. Bioinformatic analysis of the TCGA database and clinical samples validation also identify a negative correlation between PBLD and angiogenesis-related genes expression including HIF-1a. Apart from the downregulation of HIF-1a/VEGF expression in HCC cells, PBLD also blocks VEGF receptor 2 (VEGFR2) on endothelial cells via HCC-derived exosomal miR-940. PBLD also activates TCF4 transcriptional promotion effects on miR-940 by directly interacting with it. Together, PBLD exerts an inhibitory effect on angiogenesis not only via blocking the VEGFR2 expression in endothelial cells, but also through downregulating HIF-1a-induced VEGF expression and secretion in HCC cells. These explorations may provide a theoretical basis for exploring new targets and strategies to overcome resistance to anti-angiogenesis therapy.
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263
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Zatovicova M, Kajanova I, Barathova M, Takacova M, Labudova M, Csaderova L, Jelenska L, Svastova E, Pastorekova S, Harris AL, Pastorek J. Novel humanized monoclonal antibodies for targeting hypoxic human tumors via two distinct extracellular domains of carbonic anhydrase IX. Cancer Metab 2022; 10:3. [PMID: 35109923 PMCID: PMC8811981 DOI: 10.1186/s40170-022-00279-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 01/11/2022] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Hypoxia in the tumor microenvironment (TME) is often the main factor in the cancer progression. Moreover, low levels of oxygen in tumor tissue may signal that the first- or second-line therapy will not be successful. This knowledge triggers the inevitable search for different kinds of treatment that will successfully cure aggressive tumors. Due to its exclusive expression on cancer cells, carbonic anhydrase IX belongs to the group of the most precise targets in hypoxic tumors. CA IX possesses several exceptional qualities that predetermine its crucial role in targeted therapy. Its expression on the cell membrane makes it an easily accessible target, while its absence in healthy corresponding tissues makes the treatment practically harmless. The presence of CA IX in solid tumors causes an acidic environment that may lead to the failure of standard therapy. METHODS Parental mouse hybridomas (IV/18 and VII/20) were humanized to antibodies which were subsequently named CA9hu-1 and CA9hu-2. From each hybridoma, we obtained 25 clones. Each clone was tested for antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) activity, affinity, extracellular pH measurement, multicellular aggregation analysis, and real-time monitoring of invasion with the xCELLigence system. RESULTS Based on the results from in vivo experiments, we have selected mouse monoclonal antibodies VII/20 and IV/18. The first one is directed at the conformational epitope of the catalytic domain, internalizes after binding to the antigen, and halts tumor growth while blocking extracellular acidification. The second targets the sequential epitope of the proteo-glycan domain, does not internalize, and is able to block the attachment of cancer cells to the matrix preventing metastasis formation. In vitro experiments prove that humanized versions of the parental murine antibodies, CA9hu-1 and CA9hu-2, have preserved these characteristics. They can reverse the failure of standard therapy as a result of an acidic environment by modulating the TME, and both are able to induce an immune response and have high affinity, as well as ADCC and CDC activity. CONCLUSION CA9hu-1 and CA9hu-2 are the very first humanized antibodies against CA IX that are likely to become suitable therapies for hypoxic tumors. These antibodies can be applied in the treatment therapy of primary tumors and suppression of metastases formation.
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Affiliation(s)
- Miriam Zatovicova
- MABPRO, a.s., Dubravska cesta 2, 841 04, Bratislava, Slovakia
- Department of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505, Bratislava, Slovakia
| | - Ivana Kajanova
- Department of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505, Bratislava, Slovakia
| | - Monika Barathova
- MABPRO, a.s., Dubravska cesta 2, 841 04, Bratislava, Slovakia
- Department of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505, Bratislava, Slovakia
| | - Martina Takacova
- Department of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505, Bratislava, Slovakia
| | - Martina Labudova
- MABPRO, a.s., Dubravska cesta 2, 841 04, Bratislava, Slovakia
- Department of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505, Bratislava, Slovakia
| | - Lucia Csaderova
- Department of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505, Bratislava, Slovakia
| | - Lenka Jelenska
- Department of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505, Bratislava, Slovakia
| | - Eliska Svastova
- Department of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505, Bratislava, Slovakia
| | - Silvia Pastorekova
- Department of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505, Bratislava, Slovakia
| | - Adrian L Harris
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
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Chang WL, Su YH. Zygotic hypoxia-inducible factor alpha regulates spicule elongation in the sea urchin embryo. Dev Biol 2022; 484:63-74. [DOI: 10.1016/j.ydbio.2022.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 01/28/2022] [Accepted: 02/09/2022] [Indexed: 12/15/2022]
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265
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Wu YC, Lu MT, Lin TH, Chu PC, Chang CS. Synthesis and Evaluation of Biarylquinoline Derivatives as Novel HIF-1α Inhibitors. Bioorg Chem 2022; 121:105681. [DOI: 10.1016/j.bioorg.2022.105681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 12/02/2021] [Accepted: 02/09/2022] [Indexed: 11/26/2022]
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266
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Liu Y, Xue C, Lu H, Zhou Y, Guan R, Wang J, Zhang Q, Ke T, Aschner M, Zhang W, Luo W. Hypoxia causes mitochondrial dysfunction and brain memory disorder in a manner mediated by the reduction of Cirbp. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:151228. [PMID: 34715218 DOI: 10.1016/j.scitotenv.2021.151228] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 10/03/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
Environmental hypoxic hazard has increasingly become a global public health issue, with impelling evidences supporting the relation between hypoxia and cognitive disorders. As a potent stressor, hypoxia causes mitochondrial dysfunction with insufficient energy production, thus the formation of brain memory disorder. Yet, the underlying molecular mechanism/s against hypoxia induced injury have yet to be identified. Here, we report that cold inducible RNA binding protein (Cirbp) attenuates hypoxia induced insufficient energy production and oxidative stress. Further analyses show that Cirbp sustains protein levels of respiratory chain complexes II (SDHB) and IV (MT-CO1), and directly binds the 3'UTR of Atp5g3 to control mitochondrial homeostasis and ATP biogenesis upon hypoxic stress. Altogether, our data establish Cirbp as a critical protective factor against hypoxic health hazard and provide novel insights into its latent regulation network.
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Affiliation(s)
- Ying Liu
- Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shaanxi Key Laboratory of Free Radical Biology and Medicine, Xi'an 710032, China
| | - Chong Xue
- Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shaanxi Key Laboratory of Free Radical Biology and Medicine, Xi'an 710032, China
| | - Huanyu Lu
- Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shaanxi Key Laboratory of Free Radical Biology and Medicine, Xi'an 710032, China
| | - Yang Zhou
- Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shaanxi Key Laboratory of Free Radical Biology and Medicine, Xi'an 710032, China
| | - Ruili Guan
- Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shaanxi Key Laboratory of Free Radical Biology and Medicine, Xi'an 710032, China
| | - Jiye Wang
- Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shaanxi Key Laboratory of Free Radical Biology and Medicine, Xi'an 710032, China
| | - Qian Zhang
- Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shaanxi Key Laboratory of Free Radical Biology and Medicine, Xi'an 710032, China
| | - Tao Ke
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, New York, United States of America
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, New York, United States of America
| | - Wenbin Zhang
- Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shaanxi Key Laboratory of Free Radical Biology and Medicine, Xi'an 710032, China.
| | - Wenjing Luo
- Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shaanxi Key Laboratory of Free Radical Biology and Medicine, Xi'an 710032, China.
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Selvanathan T, Smith JM, Miller SP, Field TS. Neurodevelopment and cognition across the lifespan in patients with single ventricle physiology: Abnormal brain maturation and accumulation of brain injuries. Can J Cardiol 2022; 38:977-987. [DOI: 10.1016/j.cjca.2022.02.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/19/2022] [Accepted: 02/01/2022] [Indexed: 02/08/2023] Open
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Macrophage IL-1β promotes arteriogenesis by autocrine STAT3- and NF-κB-mediated transcription of pro-angiogenic VEGF-A. Cell Rep 2022; 38:110309. [PMID: 35108537 PMCID: PMC8865931 DOI: 10.1016/j.celrep.2022.110309] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/20/2021] [Accepted: 01/07/2022] [Indexed: 11/23/2022] Open
Abstract
Peripheral artery disease (PAD) leads to considerable morbidity, yet strategies for therapeutic angiogenesis fall short of being impactful. Inflammatory macrophage subsets play an important role in orchestrating post-developmental angiogenesis, but the underlying mechanisms are unclear. Here, we find that macrophage VEGF-A expression is dependent upon the potent inflammatory cytokine, IL-1β. IL-1β promotes pro-angiogenic VEGF-A165a isoform transcription via activation and promoter binding of STAT3 and NF-κB, as demonstrated by gene-deletion, gain-of-function, inhibition, and chromatin immunoprecipitation assays. Conversely, IL-1β-deletion or inhibition of STAT3 or NF-κB increases anti-angiogenic VEGF-A165b isoform expression, indicating IL-1β signaling may also direct splice variant selection. In an experimental PAD model of acute limb ischemia, macrophage IL-1β expression is required for pro-angiogenic VEGF-A expression and for VEGF-A-induced blood flow recovery via angio- or arteriogenesis. Though further study is needed, macrophage IL-1β-dependent transcription of VEGF-A via STAT3 and NF-κB may have potential to therapeutically promote angiogenesis in the setting of PAD. Mantsounga et al. show inflammatory macrophage IL-1β expression to be required for pro-angiogenic VEGF-A expression and consequent post-developmental angio- or arteriogenesis in an experimental model of peripheral artery disease. Autocrine IL-1β signaling promotes transcription of pro-angiogenic VEGF-A165a isoform expression relative to anti-angiogenic isoform, VEGF-A165b, through activation of STAT3 and NF-κB.
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MiR-29a Curbs Hepatocellular Carcinoma Incidence via Targeting of HIF-1α and ANGPT2. Int J Mol Sci 2022; 23:ijms23031636. [PMID: 35163556 PMCID: PMC8835722 DOI: 10.3390/ijms23031636] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 12/11/2022] Open
Abstract
A high-fat diet is responsible for hepatic fat accumulation that sustains chronic liver damage and increases the risks of steatosis and hepatocellular carcinoma (HCC). MicroRNA-29a (miR-29a), a key regulator of cellular behaviors, is present in anti-fibrosis and modulator tumorigenesis. However, the increased transparency of the correlation between miR-29a and the progression of human HCC is still further investigated. In this study, we predicted HIF-1α and ANGPT2 as regulators of HCC by the OncoMir cancer database and showed a strong positive correlation with HIF-1α and ANGPT2 gene expression in HCC patients. Mice fed the western diet (WD) while administered CCl4 for 25 weeks induced chronic liver damage and higher HCC incidence than without fed WD mice. HCC section staining revealed signaling upregulation in ki67, severe fibrosis, and steatosis in WD and CCl4 mice and detected Col3a1 gene expressions. HCC tissues significantly attenuated miR-29a but increased in HIF-1α, ANGPT2, Lox, Loxl2, and VEGFA expression. Luciferase activity analysis confirms that miR-29a specific binding 3′UTR of HIF-1α and ANGPT2 to repress expression. In summary, miR-29a control HIF-1α and ANGPT2 signaling in HCC formation. This study insight into a novel molecular pathway by which miR-29a targeting HIF-1α and ANGPT2 counteracts the incidence of HCC development.
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270
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He G, Peng X, Wei S, Yang S, Li X, Huang M, Tang S, Jin H, Liu J, Zhang S, Zheng H, Fan Q, Liu J, Yang L, Li H. Exosomes in the hypoxic TME: from release, uptake and biofunctions to clinical applications. Mol Cancer 2022; 21:19. [PMID: 35039054 PMCID: PMC8762953 DOI: 10.1186/s12943-021-01440-5] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 10/02/2021] [Indexed: 02/06/2023] Open
Abstract
Hypoxia is a remarkable trait of the tumor microenvironment (TME). When facing selective pressure, tumor cells show various adaptive characteristics, such as changes in the expression of cancer hallmarks (increased proliferation, suppressed apoptosis, immune evasion, and so on) and more frequent cell communication. Because of the adaptation of cancer cells to hypoxia, exploring the association between cell communication mediators and hypoxia has become increasingly important. Exosomes are important information carriers in cell-to-cell communication. Abundant evidence has proven that hypoxia effects in the TME are mediated by exosomes, with the occasional formation of feedback loops. In this review, we equally focus on the biogenesis and heterogeneity of cancer-derived exosomes and their functions under hypoxia and describe the known and potential mechanism ascribed to exosomes and hypoxia. Notably, we call attention to the size change of hypoxic cancer cell-derived exosomes, a characteristic long neglected, and propose some possible effects of this size change. Finally, jointly considering recent developments in the understanding of exosomes and tumors, we describe noteworthy problems in this field that urgently need to be solved for better research and clinical application.
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Affiliation(s)
- Guangpeng He
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Xueqiang Peng
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Shibo Wei
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Shuo Yang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Xinyu Li
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Mingyao Huang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Shilei Tang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Hongyuan Jin
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Jiaxing Liu
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Sheng Zhang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Hongyu Zheng
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Qing Fan
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Jingang Liu
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Liang Yang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China.
| | - Hangyu Li
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China.
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Abstract
[Figure: see text].
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Affiliation(s)
- Søren R Paludan
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Trine H Mogensen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
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272
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Stabilization but no functional influence of HIF-1α expression in the intestinal epithelium during Salmonella Typhimurium infection. Infect Immun 2022; 90:e0022221. [PMID: 34978927 DOI: 10.1128/iai.00222-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The hypoxia-inducible transcription factor 1 (HIF-1) has been shown to enhance microbial killing and to ameliorate the course of bacterial infections. While the impact of HIF-1 on inflammatory diseases of the gut has been studied intensively, its function in bacterial infections of the gastrointestinal tract remains largely elusive. With the help of a publicly available gene expression data set, we could infer significant activation of HIF-1 after oral infection of mice with Salmonella Typhimurium. Immunohistochemistry and western blot analysis confirmed marked HIF-1α protein stabilization, especially in the intestinal epithelium. This prompted us to analyze conditional Hif1a-deficient mice to examine cell type-specific functions of HIF-1 in this model. Our results demonstrate enhanced non-canonical induction of HIF-1 activity upon Salmonella infection in the intestinal epithelium as well as in macrophages. Surprisingly, Hif1a deletion in intestinal epithelial cells did not impact on inflammatory gene expression, bacterial spread or disease outcome. In contrast, Hif1a deletion in myeloid cells enhanced intestinal Cxcl2 expression and reduced the cecal Salmonella load. In vitro, HIF-1α-deficient macrophages showed an overall impaired transcription of mRNA encoding pro-inflammatory factors, however, intracellular survival of Salmonella was not impacted by HIF-1α deficiency.
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273
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Abstract
Hypoxia is defined as a cellular stress condition caused by a decrease in oxygen below physiologically normal levels. Cells in the core of a rapidly growing solid tumor are faced with the challenge of inadequate supply of oxygen through the blood, owing to improper vasculature inside the tumor. This hypoxic microenvironment inside the tumor initiates a gene expression program that alters numerous signaling pathways, allowing the cancer cell to eventually evade adverse conditions and attain a more aggressive phenotype. A multitude of studies covering diverse aspects of gene regulation has tried to uncover the mechanisms involved in hypoxia-induced tumorigenesis. The role of epigenetics in executing widespread and dynamic changes in gene expression under hypoxia has been gaining an increasing amount of support in recent years. This chapter discusses, in detail, various epigenetic mechanisms driving the cellular response to hypoxia in cancer.
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Affiliation(s)
- Deepak Pant
- Epigenetics and RNA Processing Lab (ERPL), Indian Institute of Science Education and Research Bhopal, Bhopal, India
| | - Srinivas Abhishek Mutnuru
- Epigenetics and RNA Processing Lab (ERPL), Indian Institute of Science Education and Research Bhopal, Bhopal, India
| | - Sanjeev Shukla
- Epigenetics and RNA Processing Lab (ERPL), Indian Institute of Science Education and Research Bhopal, Bhopal, India.
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Zheng X, Ma J, Hu M, Long J, Wei Q, Ren W. Analysis of HIF2α polymorphisms in infertile women with polycystic ovary syndrome or unexplained infertility. Front Endocrinol (Lausanne) 2022; 13:986567. [PMID: 36157441 PMCID: PMC9492870 DOI: 10.3389/fendo.2022.986567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/17/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To evaluate HIF2α polymorphisms and glucose metabolism in a group of women with polycystic ovary syndrome (PCOS) or unexplained infertility (UI). PATIENTS The infertile group (n=148) consisted of 96 women with PCOS, 52 women with UI, and176 women without infertility as a healthy control group. INTERVENTION We genotyped 29 single nucleotide polymorphisms (SNPs) of HIF2α by using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS)-based genotyping technology. The genetic associations were analyzed statistically. MAIN OUTCOME MEASURES Allele frequency, genotype distribution and haplotype analyze of the HIF2α polymorphisms were performed. Body mass index (BMI), waist circumference, uric acid (UA), high-sensitivity C-reactive protein (hsCRP), lipids, glucose and insulin tolerance - were also measured. RESULTS Infertile women with PCOS had a higherBMI and waist circumference, elevated hsCRP and uric acid (UA) levels, impaired glucose tolerance, and increased levels of plasma insulin compared to UI patients and healthy women. SNP analysis of HIF2α revealed that the allele and genotype frequencies of rs4953361 were significantly associated with infertile women with PCOS. Haplotype analysis of the HIF2α polymorphism identified haplotypes TGG and TGA as being associated with infertile women with PCOS. Women with the AA genotype of rs4953361 had a significantly higher BMI and post load plasma glucose and insulin levels than those of women with the GG genotype. CONCLUSION Infertile women with PCOS more commonly have metabolic disturbances than those with UI. This is the first study to report an association between HIF2α polymorphisms (rs4953361) and the risk of infertile women with PCOS, not UI, in Han Chinese population. These results require replication in larger populations.In this observational study, we did not report the results of a health care intervention on human participants. The study was approved by the Human Research Ethics Committee of the First Affiliated Hospital of Chongqing Medical University. Clinical data and peripheral blood samples were collected only after explaining the objectives of the study and obtaining a signed informed consent form.
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Affiliation(s)
- Xiaoya Zheng
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Xiaoya Zheng,
| | - Jiani Ma
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Min Hu
- Reproductive and Infertility Center, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jian Long
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qiang Wei
- Prevention of Disease Department, Chongqing Jiulongpo District Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Wei Ren
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Mondal P, Tiwary N, Sengupta A, Dhang S, Roy S, Das C. Epigenetic Reprogramming of the Glucose Metabolic Pathways by the Chromatin Effectors During Cancer. Subcell Biochem 2022; 100:269-336. [PMID: 36301498 DOI: 10.1007/978-3-031-07634-3_9] [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] [Indexed: 06/16/2023]
Abstract
Glucose metabolism plays a vital role in regulating cellular homeostasis as it acts as the central axis for energy metabolism, alteration in which may lead to serious consequences like metabolic disorders to life-threatening diseases like cancer. Malignant cells, on the other hand, help in tumor progression through abrupt cell proliferation by adapting to the changed metabolic milieu. Metabolic intermediates also vary from normal cells to cancerous ones to help the tumor manifestation. However, metabolic reprogramming is an important phenomenon of cells through which they try to maintain the balance between normal and carcinogenic outcomes. In this process, transcription factors and chromatin modifiers play an essential role to modify the chromatin landscape of important genes related directly or indirectly to metabolism. Our chapter surmises the importance of glucose metabolism and the role of metabolic intermediates in the cell. Also, we summarize the influence of histone effectors in reprogramming the cancer cell metabolism. An interesting aspect of this chapter includes the detailed methods to detect the aberrant metabolic flux, which can be instrumental for the therapeutic regimen of cancer.
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Affiliation(s)
- Payel Mondal
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata, India
- Homi Bhaba National Institute, Mumbai, India
| | - Niharika Tiwary
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata, India
| | - Amrita Sengupta
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata, India
| | - Sinjini Dhang
- Structural Biology & Bio-Informatics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Siddhartha Roy
- Structural Biology & Bio-Informatics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Chandrima Das
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata, India.
- Homi Bhaba National Institute, Mumbai, India.
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276
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Wu X, Fan X, Crawford R, Xiao Y, Prasadam I. The Metabolic Landscape in Osteoarthritis. Aging Dis 2022; 13:1166-1182. [PMID: 35855332 PMCID: PMC9286923 DOI: 10.14336/ad.2021.1228] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/28/2021] [Indexed: 11/01/2022] Open
Affiliation(s)
- Xiaoxin Wu
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
- Department of Orthopaedic Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Xiwei Fan
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
| | - Ross Crawford
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
- The Prince Charles Hospital, Orthopedic Department, Brisbane, Queensland, Australia.
| | - Yin Xiao
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Queensland, Australia.
| | - Indira Prasadam
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
- Correspondence should be addressed to: Dr. Indira Prasadam, Centre for Biomedical Technologies, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Kelvin Grove, QLD, 4059, Australia.
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277
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Amelio GS, Provitera L, Raffaeli G, Tripodi M, Amodeo I, Gulden S, Cortesi V, Manzoni F, Cervellini G, Tomaselli A, Pravatà V, Garrido F, Villamor E, Mosca F, Cavallaro G. Endothelial dysfunction in preterm infants: The hidden legacy of uteroplacental pathologies. Front Pediatr 2022; 10:1041919. [PMID: 36405831 PMCID: PMC9671930 DOI: 10.3389/fped.2022.1041919] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022] Open
Abstract
Millions of infants are born prematurely every year worldwide. Prematurity, particularly at lower gestational ages, is associated with high mortality and morbidity and is a significant global health burden. Pregnancy complications and preterm birth syndrome strongly impact neonatal clinical phenotypes and outcomes. The vascular endothelium is a pivotal regulator of fetal growth and development. In recent years, the key role of uteroplacental pathologies impairing endothelial homeostasis is emerging. Conditions leading to very and extremely preterm birth can be classified into two main pathophysiological patterns or endotypes: infection/inflammation and dysfunctional placentation. The first is frequently related to chorioamnionitis, whereas the second is commonly associated with hypertensive disorders of pregnancy and fetal growth restriction. The nature, timing, and extent of prenatal noxa may alter fetal and neonatal endothelial phenotype and functions. Changes in the luminal surface, oxidative stress, growth factors imbalance, and dysregulation of permeability and vascular tone are the leading causes of endothelial dysfunction in preterm infants. However, the available evidence regarding endothelial physiology and damage is limited in neonates compared to adults. Herein, we discuss the current knowledge on endothelial dysfunction in the infectious/inflammatory and dysfunctional placentation endotypes of prematurity, summarizing their molecular features, available biomarkers, and clinical impact. Furthermore, knowledge gaps, shadows, and future research perspectives are highlighted.
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Affiliation(s)
- Giacomo Simeone Amelio
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Livia Provitera
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Genny Raffaeli
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, Università Degli Studi di Milano, Milan, Italy
| | - Matteo Tripodi
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Ilaria Amodeo
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Silvia Gulden
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Valeria Cortesi
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, Università Degli Studi di Milano, Milan, Italy
| | - Francesca Manzoni
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, Università Degli Studi di Milano, Milan, Italy
| | - Gaia Cervellini
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, Università Degli Studi di Milano, Milan, Italy
| | - Andrea Tomaselli
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, Università Degli Studi di Milano, Milan, Italy
| | - Valentina Pravatà
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Felipe Garrido
- Department of Pediatrics, Clínica Universidad de Navarra, Madrid, Spain
| | - Eduardo Villamor
- Department of Pediatrics, Maastricht University Medical Center (MUMC+), School for Oncology and Reproduction (GROW), University of Maastricht, Maastricht, Netherlands
| | - Fabio Mosca
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, Università Degli Studi di Milano, Milan, Italy
| | - Giacomo Cavallaro
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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278
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Zhang L, Wu H, Zhang Y, Xiao X, Chu F, Zhang L. Induction of lncRNA NORAD accounts for hypoxia-induced chemoresistance and vasculogenic mimicry in colorectal cancer by sponging the miR-495-3p/ hypoxia-inducible factor-1α (HIF-1α). Bioengineered 2022; 13:950-962. [PMID: 34969360 PMCID: PMC8805945 DOI: 10.1080/21655979.2021.2015530] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Hypoxic microenvironment represents the hallmark of solid tumors including colorectal cancer (CRC) and facilitates angiogenesis and chemoresistance, leading to poor prognosis. lncRNA NORAD acts as an oncogenic gene to orchestrate cancer progression by regulating cell proliferation and migration. Notably, an emerging study corroborates the elevation of NORAD during hypoxic conditions in pancreatic cancer. Nevertheless, its biological role in hypoxia-evoked CRC remains unclear. Herein, enhanced expression of NORAD and hypoxia-inducible factor-1α (HIF-1α) was validated in CRC tissues. Furthermore, there was a positive association between NORAD and HIF-1α in CRC tissues. CRC cells exposed to hypoxia exhibited a stronger ability to form vasculogenic mimicry (VM) and resistance to 5-fluorouracil (5-FU), concomitant with higher expression of NORAD. NORAD knockdown restrained hypoxia-induced VM formation and VM marker VE-cadherin expression. Moreover, knockdown of NORAD counteracted CRC cell resistance to 5-FU by decreasing cell viability and increasing cell apoptosis. Additionally, NORAD loss reduced hypoxia-induced HIF-1α expression and subsequent epithelial-mesenchymal transition (EMT) by increasing E-cadherin and inhibiting N-cadherin expression. Intriguingly, HIF-1α overexpression reversed NORAD downregulation-mediated inhibition of VM formation and 5-FU resistance. There was a low expression of miR-495-3p in CRC tissues. Furthermore, NORAD could act as a competitive endogenous RNA of miR-495-3p to regulate HIF-1α. Importantly, inhibition of miR-495-3p muted the efficacy of NORAD loss in hypoxia-induced EMT, VM, and chemoresistance. Thus, the current data highlight that NORAD knockdown may antagonize hypoxia-triggered CRC malignancy by suppressing VM formation and chemoresistance by sponging miR-495-3p/HIF-1α to regulate EMT, supporting a promising therapeutic target for refractory hypoxia in CRC.
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Affiliation(s)
- Lei Zhang
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, P.R. China
| | - Huili Wu
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, P.R. China
| | - Yong Zhang
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, P.R. China
| | - Xingguo Xiao
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, P.R. China
| | - Feifei Chu
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, P.R. China
| | - Li Zhang
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, P.R. China
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279
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Yang W, Wei X, Jiao Y, Bai Y, Sam WN, Yan Q, Sun X, Li G, Ma J, Wei W, Tian D, Zheng F. STAT3/HIF-1α/fascin-1 axis promotes RA FLSs migration and invasion ability under hypoxia. Mol Immunol 2021; 142:83-94. [PMID: 34971867 DOI: 10.1016/j.molimm.2021.12.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 10/15/2021] [Accepted: 12/01/2021] [Indexed: 12/24/2022]
Abstract
Rheumatoid arthritis (RA) synovium was identified as "tumor-like" tissues because of the hypoxic microenvironment, significant cell proliferation, and invasion phenotypes. It was reported that hypoxia promoted tumor aggressiveness via up-regulated expression of fascin-1 in cancer. However, the role of fascin-1 in RA synovial hyperplasia and joint injury progression remains unknown. In the current study, we first identified that both fascin-1 and HIF-1α were highly expressed in the RA synovium, in which they were widely colocalized, compared to osteoarthritis(OA). As well, levels of fascin-1 in RA fibroblast-like synoviocytes(FLSs) were found significantly higher than those in OA FLSs. Further, it was demonstrated that the mRNA and protein levels of fascin-1 in RA FLSs were up-regulated in hypoxia (3 % O2) and experimental hypoxia induced by cobalt chloride. Mechanistically, the HIF-1α-mediated hypoxia environment activated the gene expression of the fascin-1 protein, which in turn promoted the migration and invasion of RA FLSs. Accordingly, the restoration of FLSs migration and invasion was observed following siRNA-mediated silencing of fascin-1 and HIF-1α expression. Notably, under the experimental hypoxia, we found that the expression levels of fascin-1, HIF-1α, and p-STAT3 were increased in a time-dependent manner, and fascin-1and HIF-1α expressions were dependent on p-STAT3. Our results indicated that hypoxia-induced fascin-1 up-regulation promoted RA FLSs migration and invasion through the STAT3/HIF-1α/fascin-1 axis, which might represent a novel therapeutic target for the treatment of RA.
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Affiliation(s)
- Wang Yang
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Xinyue Wei
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Yachong Jiao
- Department of Clinical Laboratory, The Third Hospital of Hebei Medical University, Hebei, China
| | - Yingyu Bai
- Laboratory for Mechanisms and Therapies of Heart Diseases, School of Pharmacy, Tianjin Medical University, Tianjin, China
| | - Wilfried Noel Sam
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Qiushuang Yan
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Xuguo Sun
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Guangping Li
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Jun Ma
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin, China.
| | - Wei Wei
- Department of Rheumatology, General Hospital, Tianjin Medical University, Tianjin, China.
| | - Derun Tian
- Department of Clinical Laboratory Diagnostics, Tianjin Medical University, Tianjin, China.
| | - Fang Zheng
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China.
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280
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Harmati M, Bukva M, Böröczky T, Buzás K, Gyukity-Sebestyén E. The role of the metabolite cargo of extracellular vesicles in tumor progression. Cancer Metastasis Rev 2021; 40:1203-1221. [PMID: 34957539 PMCID: PMC8825386 DOI: 10.1007/s10555-021-10014-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/15/2021] [Indexed: 12/19/2022]
Abstract
Metabolomic reprogramming in tumor and stroma cells is a hallmark of cancer but understanding its effects on the metabolite composition and function of tumor-derived extracellular vesicles (EVs) is still in its infancy. EVs are membrane-bound sacs with a complex molecular composition secreted by all living cells. They are key mediators of intercellular communication both in normal and pathological conditions and play a crucial role in tumor development. Although lipids are major components of EVs, most of the EV cargo studies have targeted proteins and nucleic acids. The potential of the EV metabolome as a source for biomarker discovery has gained recognition recently, but knowledge on the biological activity of tumor EV metabolites still remains limited. Therefore, we aimed (i) to compile the list of metabolites identified in tumor EVs isolated from either clinical specimens or in vitro samples and (ii) describe their role in tumor progression through literature search and pathway analysis.
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Affiliation(s)
- Mária Harmati
- Laboratory of Microscopic Image Analysis and Machine Learning, Institute of Biochemistry, Biological Research Centre - Eötvös Loránd Research Network, 6726, Szeged, Hungary
| | - Mátyás Bukva
- Laboratory of Microscopic Image Analysis and Machine Learning, Institute of Biochemistry, Biological Research Centre - Eötvös Loránd Research Network, 6726, Szeged, Hungary.,Department of Immunology, University of Szeged, 6720, Szeged, Hungary.,Doctoral School of Interdisciplinary Medicine, University of Szeged, 6720, Szeged, Hungary
| | - Tímea Böröczky
- Laboratory of Microscopic Image Analysis and Machine Learning, Institute of Biochemistry, Biological Research Centre - Eötvös Loránd Research Network, 6726, Szeged, Hungary.,Department of Immunology, University of Szeged, 6720, Szeged, Hungary.,Doctoral School of Interdisciplinary Medicine, University of Szeged, 6720, Szeged, Hungary
| | - Krisztina Buzás
- Laboratory of Microscopic Image Analysis and Machine Learning, Institute of Biochemistry, Biological Research Centre - Eötvös Loránd Research Network, 6726, Szeged, Hungary.,Department of Immunology, University of Szeged, 6720, Szeged, Hungary
| | - Edina Gyukity-Sebestyén
- Laboratory of Microscopic Image Analysis and Machine Learning, Institute of Biochemistry, Biological Research Centre - Eötvös Loránd Research Network, 6726, Szeged, Hungary.
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281
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De Roover A, Núñez AE, Cornelis FM, Cherifi C, Casas-Fraile L, Sermon A, Cailotto F, Lories RJ, Monteagudo S. Hypoxia induces DOT1L in articular cartilage to protect against osteoarthritis. JCI Insight 2021; 6:150451. [PMID: 34727094 PMCID: PMC8783684 DOI: 10.1172/jci.insight.150451] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 10/29/2021] [Indexed: 11/17/2022] Open
Abstract
Osteoarthritis is the most prevalent joint disease worldwide, and it is a leading source of pain and disability. To date, this disease lacks curative treatment, as underlying molecular mechanisms remain largely unknown. The histone methyltransferase DOT1L protects against osteoarthritis, and DOT1L-mediated H3K79 methylation is reduced in human and mouse osteoarthritic joints. Thus, restoring DOT1L function seems to be critical to preserve joint health. However, DOT1L-regulating molecules and networks remain elusive, in the joint and beyond. Here, we identified transcription factors and networks that regulate DOT1L gene expression using a potentially novel bioinformatics pipeline. Thereby, we unraveled a possibly undiscovered link between the hypoxia pathway and DOT1L. We provide evidence that hypoxia enhanced DOT1L expression and H3K79 methylation via hypoxia-inducible factor-1 α (HIF1A). Importantly, we demonstrate that DOT1L contributed to the protective effects of hypoxia in articular cartilage and osteoarthritis. Intra-articular treatment with a selective hypoxia mimetic in mice after surgical induction of osteoarthritis restored DOT1L function and stalled disease progression. Collectively, our data unravel a molecular mechanism that protects against osteoarthritis with hypoxia inducing DOT1L transcription in cartilage. Local treatment with a selective hypoxia mimetic in the joint restores DOT1L function and could be an attractive therapeutic strategy for osteoarthritis.
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Affiliation(s)
- Astrid De Roover
- Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Ana Escribano Núñez
- Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Frederique Mf Cornelis
- Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Chahrazad Cherifi
- Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Leire Casas-Fraile
- Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - An Sermon
- Division of Trauma Surgery, University Hospitals Leuven, Leuven, Belgium.,Locomotor and Neurological Disorders Unit, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Frederic Cailotto
- UMR 7365 CNRS - University of Lorraine, Molecular Engineering and Articular Physiopathology, Biopôle, University of Lorraine, Campus Biologie-Santé, Vandoeuvre-Les-Nancy, France
| | - Rik J Lories
- Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Division of Rheumatology, University Hospitals Leuven, Leuven, Belgium
| | - Silvia Monteagudo
- Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
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282
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Hypoxia and HIF-1 Trigger Marek’s Disease Virus Reactivation in Lymphoma-Derived Latently Infected T Lymphocytes. J Virol 2021; 96:e0142721. [DOI: 10.1128/jvi.01427-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Latency is a hallmark of herpesviruses, allowing them to persist into their host without virions production. Acute exposure to hypoxia (below 3% O
2
) was identified as a trigger of latent-to-lytic switch (reactivation) for human oncogenic gamma-herpesviruses (KSHV and EBV). Therefore, we hypothesized that hypoxia could also induce reactivation of Marek’s disease virus (MDV), sharing biological properties with EBV and KSHV (notably oncogenic properties), into lymphocytes. Acute exposure to hypoxia (1% O
2
) of two MDV-latently infected cell lines derived from MD tumors (3867K and MSB-1) induced MDV reactivation. A bioinformatic analysis of the RB-1B MDV genome revealed 214 putative hypoxia-response element consensus sequences on 119 open reading frames. RT-qPCR analysis showed five MDV genes strongly upregulated early after hypoxia. In 3867K cells under normoxia, pharmacological agents mimicking hypoxia (MLN4924 and CoCl
2
) increased MDV reactivation, but to a lower level than real hypoxia. Overexpression of wild-type or stabilized human hypoxia inducible factor-1α (HIF-1α) in MSB-1 cells in normoxia also promoted MDV reactivation. In such conditions, lytic cycle was detected in cells with a sustainable HIF-1α expression, but also in HIF-1α negative cells, indicating that MDV reactivation is mediated by HIF-1, in a direct and/or indirect manner. Lastly, we demonstrated by a reporter assay that HIF-1α overexpression induced the transactivation of two viral promoters, shown upregulated in hypoxia. These results suggest that hypoxia may play a crucial role in the late lytic replication phase observed
in vivo
in MDV-infected chickens exhibiting tumors, since a hypoxic microenvironment is a hallmark of most solid tumors.
IMPORTANCE
Latent-to-lytic switch of herpesviruses (aka reactivation) is responsible for pathology recurrences and/or viral shedding. Studying physiological triggers of reactivation is therefore important for health to limit lesions and viral transmission. Marek's disease virus (MDV) is a potent oncogenic alpha-herpesvirus establishing latency in T-lymphocytes and causing lethal T-lymphomas in chickens.
In vivo
, a second lytic phase is observed during tumoral stage. Hypoxia being a hallmark of tumors, we wondered whether hypoxia induces MDV reactivation in latently-infected T-lymphocytes, like previously shown for EBV and KSHV in B-lymphocytes. In this study, we demonstrated that acute hypoxia (1% O2) triggers MDV reactivation in two MDV transformed T-cell lines. We provide some molecular basis of this reactivation by showing that hypoxia inducible factor (HIF-1) overexpression induces MDV reactivation to a similar extend than hypoxia after 24 hours. Hypoxia is therefore a reactivation stimulus shared by mammalian and avian oncogenic herpesviruses of different genus.
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283
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Liu W, Ye X, He L, Cheng J, Luo W, Zheng M, Hu Y, Zhang W, Cao Y, Ran H, Yang L. A novel targeted multifunctional nanoplatform for visual chemo-hyperthermia synergy therapy on metastatic lymph nodes via lymphatic delivery. J Nanobiotechnology 2021; 19:432. [PMID: 34930301 PMCID: PMC8686382 DOI: 10.1186/s12951-021-01186-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/06/2021] [Indexed: 11/29/2022] Open
Abstract
Background Distant metastasis to vital organs is the major contributor to breast cancer mortality, and regional lymph node metastasis is an important facilitator of distant metastasis and recurrence in this cancer. The early diagnosis and precise treatment of lymph node metastasis are crucial for staging and prognosis in breast cancer. Herein, we report a visualized precision medicine nanoplatform of metastatic lymph nodes for ultrasonic/photoacoustic (US/PA) dual modal imaging-guided in situ targeted hyperthermia-combined chemotherapy. Results Carbon nanoparticles (CNs), approved by the China Food and Drug Administration, were loaded with docetaxel and rationally combined with anti-hypoxia-inducible factor 1α antibody-modified poly (lactic-co-glycolic acid) (PLGA) nanoparticles to achieve the combination of passive targeting at the lymph nodes and intracellular targeting at HIF 1α factor. The accumulation and retention of nanoparticles in metastatic lymph nodes via lymphatic delivery were enhanced. Docetaxel could be effectively offloaded by CNs that have active carbon nanoparticles, and the PLGA membrane prevented drug leakage. The nanoparticles exhibited excellent photothermal performance with a photothermal conversion efficiency of 28.9%, killing tumor cells in metastatic lymph nodes through hyperthermia. In vitro and in vivo systematic evaluations revealed that hyperpyrexia triggered the rupture of nanoparticles caused by the phase transition of perfluorohexane, resulting in docetaxel release for achieving in situ hyperthermia-combined chemotherapy. Conclusions The laser-triggered highly efficient in situ chemotherapy nanosystem achieves targeted synergistic chemo-hyperthermia treatment of metastatic lymph nodes, and lymphatic delivery represents a strategy to avoid additional injury caused by drugs entering the blood circulation. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01186-8.
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Affiliation(s)
- Weiwei Liu
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Xiaoping Ye
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Lingyun He
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Juan Cheng
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Wenpei Luo
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China.,Department of Breast and Thyroid, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Min Zheng
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Yaqin Hu
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Wei Zhang
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Yang Cao
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Haitao Ran
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China.
| | - Lu Yang
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of Ultrasound Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China. .,Department of Breast and Thyroid, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China.
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284
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Hong S, Zhang Y, Cao M, Lin A, Yang Q, Zhang J, Luo P, Guo L. Hypoxic Characteristic Genes Predict Response to Immunotherapy for Urothelial Carcinoma. Front Cell Dev Biol 2021; 9:762478. [PMID: 34901008 PMCID: PMC8657403 DOI: 10.3389/fcell.2021.762478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 11/05/2021] [Indexed: 12/24/2022] Open
Abstract
Objective: Resistance to immune checkpoint inhibitors (ICIs) has been a massive obstacle to ICI treatment in metastatic urothelial carcinoma (MUC). Recently, increasing evidence indicates the clinical importance of the association between hypoxia and immune status in tumor patients. Therefore, it is necessary to investigate the relationship between hypoxia and prognosis in metastatic urothelial carcinoma. Methods: Transcriptomic and clinical data from 348 MUC patients who underwent ICI treatment from a large phase 2 trial (IMvigor210) were investigated in this study. The cohort was randomly divided into two datasets, a training set (n = 213) and a testing set (n = 135). Data of hypoxia-related genes were downloaded from the molecular signatures database (MSigDB), and screened by univariate and multivariate Cox regression analysis to construct a prognosis-predictive model. The robustness of the model was evaluated in two melanoma cohorts. Furthermore, an external validation cohort, the bladder cancer cohort, from the Cancer Genome Atlas (TCGA) database, was t used to explore the mechanism of gene mutation, immune cell infiltration, signaling pathway enrichment, and drug sensitivity. Results: We categorized patients as the high- or low- risk group using a four-gene hypoxia risk model which we constructed. It was found that patients with high-risk scores had significantly worse overall survival (OS) compared with those with low-risk scores. The prognostic model covers 0.71 of the area under the ROC curve in the training set and 0.59 in the testing set, which is better than the survival prediction of MUC patients using the clinical characteristics. Mutation analysis results showed that deletion mutations in RB1, TP53, TSC1 and KDM6A were correlated with hypoxic status. Immune cell infiltration analysis illustrated that the infiltration T cells, B cells, Treg cells, and macrophages was correlated with hypoxia. Functional enrichment analysis revealed that a hypoxic microenvironment activated inflammatory pathways, glucose metabolism pathways, and immune-related pathways. Conclusion: In this investigation, a four-gene hypoxia risk model was developed to evaluate the degree of hypoxia and prognosis of ICI treatment, which showed a promising clinical prediction value in MUC. Furthermore, the hypoxia risk model revealed a close relationship between hypoxia and the tumor immune microenvironment.
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Affiliation(s)
- Shuo Hong
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yueming Zhang
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Manming Cao
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Anqi Lin
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qi Yang
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jian Zhang
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Peng Luo
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Linlang Guo
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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285
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Abdulla N, Vincent CT, Kaur M. Mechanistic Insights Delineating the Role of Cholesterol in Epithelial Mesenchymal Transition and Drug Resistance in Cancer. Front Cell Dev Biol 2021; 9:728325. [PMID: 34869315 PMCID: PMC8640133 DOI: 10.3389/fcell.2021.728325] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/29/2021] [Indexed: 12/12/2022] Open
Abstract
Despite the significant advancements made in targeted anti-cancer therapy, drug resistance constitutes a multifaceted phenomenon leading to therapy failure and ultimately mortality. Emerging experimental evidence highlight a role of cholesterol metabolism in facilitating drug resistance in cancer. This review aims to describe the role of cholesterol in facilitating multi-drug resistance in cancer. We focus on specific signaling pathways that contribute to drug resistance and the link between these pathways and cholesterol. Additionally, we briefly discuss the molecular mechanisms related to the epithelial-mesenchymal transition (EMT), and the documented link between EMT, metastasis and drug resistance. We illustrate this by specifically focusing on hypoxia and the role it plays in influencing cellular cholesterol content following EMT induction. Finally, we provide a proposed model delineating the crucial role of cholesterol in EMT and discuss whether targeting cholesterol could serve as a novel means of combatting drug resistance in cancer progression and metastasis.
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Affiliation(s)
- Naaziyah Abdulla
- School of Molecular and Cell Biology, University of the Witwatersrand, Johannesburg, South Africa
| | - C Theresa Vincent
- Department of Immunology, Genetics and Pathology, Uppsala, Sweden.,Department of Microbiology, New York University School of Medicine, New York, NY, United States
| | - Mandeep Kaur
- School of Molecular and Cell Biology, University of the Witwatersrand, Johannesburg, South Africa
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286
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Bao L, Xu T, Lu X, Huang P, Pan Z, Ge M. Metabolic Reprogramming of Thyroid Cancer Cells and Crosstalk in Their Microenvironment. Front Oncol 2021; 11:773028. [PMID: 34926283 PMCID: PMC8674491 DOI: 10.3389/fonc.2021.773028] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/05/2021] [Indexed: 12/18/2022] Open
Abstract
Metabolism differs significantly between tumor and normal cells. Metabolic reprogramming in cancer cells and metabolic interplay in the tumor microenvironment (TME) are important for tumor formation and progression. Tumor cells show changes in both catabolism and anabolism. Altered aerobic glycolysis, known as the Warburg effect, is a well-recognized characteristic of tumor cell energy metabolism. Compared with normal cells, tumor cells consume more glucose and glutamine. The enhanced anabolism in tumor cells includes de novo lipid synthesis as well as protein and nucleic acid synthesis. Although these forms of energy supply are uneconomical, they are required for the functioning of cancer cells, including those in thyroid cancer (TC). Increasing attention has recently focused on alterations of the TME. Understanding the metabolic changes governing the intricate relationship between TC cells and the TME may provide novel ideas for the treatment of TC.
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Affiliation(s)
- Lisha Bao
- Second Clinical College, Zhejiang Chinese Medical School, Hangzhou, China
- ENT-Head & Neck Surgery Center, Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Zhejiang Provincial People's Hospital, Hangzhou, China
| | - Tong Xu
- Clinical Pharmacy Center, Department of Pharmacy, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Xixuan Lu
- ENT-Head & Neck Surgery Center, Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Zhejiang Provincial People's Hospital, Hangzhou, China
| | - Ping Huang
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Zhejiang Provincial People's Hospital, Hangzhou, China
- Clinical Pharmacy Center, Department of Pharmacy, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Zongfu Pan
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Zhejiang Provincial People's Hospital, Hangzhou, China
- Clinical Pharmacy Center, Department of Pharmacy, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Minghua Ge
- ENT-Head & Neck Surgery Center, Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Zhejiang Provincial People's Hospital, Hangzhou, China
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287
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Wang G, Han JJ. Connections between metabolism and epigenetic modifications in cancer. MEDICAL REVIEW (BERLIN, GERMANY) 2021; 1:199-221. [PMID: 37724300 PMCID: PMC10388788 DOI: 10.1515/mr-2021-0015] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/19/2021] [Indexed: 09/20/2023]
Abstract
How cells sense and respond to environmental changes is still a key question. It has been identified that cellular metabolism is an important modifier of various epigenetic modifications, such as DNA methylation, histone methylation and acetylation and RNA N6-methyladenosine (m6A) methylation. This closely links the environmental nutrient availability to the maintenance of chromatin structure and gene expression, and is crucial to regulate cellular homeostasis, cell growth and differentiation. Cancer metabolic reprogramming and epigenetic alterations are widely observed, and facilitate cancer development and progression. In cancer cells, oncogenic signaling-driven metabolic reprogramming modifies the epigenetic landscape via changes in the key metabolite levels. In this review, we briefly summarized the current evidence that the abundance of key metabolites, such as S-adenosyl methionine (SAM), acetyl-CoA, α-ketoglutarate (α-KG), 2-hydroxyglutarate (2-HG), uridine diphospho-N-acetylglucosamine (UDP-GlcNAc) and lactate, affected by metabolic reprogramming plays an important role in dynamically regulating epigenetic modifications in cancer. An improved understanding of the roles of metabolic reprogramming in epigenetic regulation can contribute to uncover the underlying mechanisms of metabolic reprogramming in cancer development and identify the potential targets for cancer therapies.
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Affiliation(s)
- Guangchao Wang
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Center for Quantitative Biology (CQB), Peking University, Beijing, China
| | - Jingdong J. Han
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Center for Quantitative Biology (CQB), Peking University, Beijing, China
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288
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Liu W, Chen G. Regulation of energy metabolism in human pluripotent stem cells. Cell Mol Life Sci 2021; 78:8097-8108. [PMID: 34773132 PMCID: PMC11071932 DOI: 10.1007/s00018-021-04016-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/20/2021] [Accepted: 10/27/2021] [Indexed: 02/06/2023]
Abstract
All living organisms need energy to carry out their essential functions. The importance of energy metabolism is increasingly recognized in human pluripotent stem cells. Energy production is not only essential for cell survival and proliferation, but also critical for pluripotency and cell fate determination. Thus, energy metabolism is an important target in cellular regulation and stem cell applications. In this review, we will discuss key factors that influence energy metabolism and their association with stem cell functions.
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Affiliation(s)
- Weiwei Liu
- Faculty of Health Sciences, Centre of Reproduction, Development and Aging, University of Macau, Taipa, Macau SAR, China
- Bioimaging and Stem Cell Core Facility, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Guokai Chen
- Faculty of Health Sciences, Centre of Reproduction, Development and Aging, University of Macau, Taipa, Macau SAR, China.
- MoE Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau SAR, China.
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289
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Li M, Pan D, Sun H, Zhang L, Cheng H, Shao T, Wang Z. The hypoxia adaptation of small mammals to plateau and underground burrow conditions. Animal Model Exp Med 2021; 4:319-328. [PMID: 34977483 PMCID: PMC8690988 DOI: 10.1002/ame2.12183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/08/2021] [Indexed: 12/19/2022] Open
Abstract
Oxygen is one of the important substances for the survival of most life systems on the earth, and plateau and underground burrow systems are two typical hypoxic environments. Small mammals living in hypoxic environments have evolved different adaptation strategies, which include increased oxygen delivery, metabolic regulation of physiological responses and other physiological responses that change tissue oxygen utilization. Multi-omics predictions have also shown that these animals have evolved different adaptations to extreme environments. In particular, vascular endothelial growth factor (VEGF) and erythropoietin (EPO), which have specific functions in the control of O2 delivery, have evolved adaptively in small mammals in hypoxic environments. Naked mole-rats and blind mole-rats are typical hypoxic model animals as they have some resistance to cancer. This review primarily summarizes the main living environment of hypoxia tolerant small mammals, as well as the changes of phenotype, physiochemical characteristics and gene expression mode of their long-term living in hypoxia environment.
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Affiliation(s)
- Mengke Li
- School of Life SciencesZhengzhou UniversityZhengzhouP.R. China
| | - Dan Pan
- School of Life SciencesZhengzhou UniversityZhengzhouP.R. China
| | - Hong Sun
- School of Life SciencesZhengzhou UniversityZhengzhouP.R. China
- Centre for Nutritional EcologyZhengzhou UniversityZhengzhouP.R. China
| | - Lei Zhang
- School of Life SciencesZhengzhou UniversityZhengzhouP.R. China
| | - Han Cheng
- School of Life SciencesZhengzhou UniversityZhengzhouP.R. China
| | - Tian Shao
- School of Life SciencesZhengzhou UniversityZhengzhouP.R. China
| | - Zhenlong Wang
- School of Life SciencesZhengzhou UniversityZhengzhouP.R. China
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290
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Li G, Liu J, Guan Y, Ji X. The role of hypoxia in stem cell regulation of the central nervous system: From embryonic development to adult proliferation. CNS Neurosci Ther 2021; 27:1446-1457. [PMID: 34817133 PMCID: PMC8611781 DOI: 10.1111/cns.13754] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/28/2021] [Accepted: 10/03/2021] [Indexed: 12/12/2022] Open
Abstract
Hypoxia is involved in the regulation of various cell functions in the body, including the regulation of stem cells. The hypoxic microenvironment is indispensable from embryonic development to the regeneration and repair of adult cells. In addition to embryonic stem cells, which need to maintain their self-renewal properties and pluripotency in a hypoxic environment, adult stem cells, including neural stem cells (NSCs), also exist in a hypoxic microenvironment. The subventricular zone (SVZ) and hippocampal dentate gyrus (DG) are the main sites of adult neurogenesis in the brain. Hypoxia can promote the proliferation, migration, and maturation of NSCs in these regions. Also, because most neurons in the brain are non-regenerative, stem cell transplantation is considered as a promising strategy for treating central nervous system (CNS) diseases. Hypoxic treatment also increases the effectiveness of stem cell therapy. In this review, we firstly describe the role of hypoxia in different stem cells, such as embryonic stem cells, NSCs, and induced pluripotent stem cells, and discuss the role of hypoxia-treated stem cells in CNS diseases treatment. Furthermore, we highlight the role and mechanisms of hypoxia in regulating adult neurogenesis in the SVZ and DG and adult proliferation of other cells in the CNS.
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Affiliation(s)
- Gaifen Li
- Laboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersBeijing Institute of Brain DisordersCapital Medical UniversityBeijingChina
- Department of NeurosurgeryXuanwu HospitalCapital Medical UniversityBeijingChina
| | - Jia Liu
- Laboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersBeijing Institute of Brain DisordersCapital Medical UniversityBeijingChina
| | - Yuying Guan
- Laboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersBeijing Institute of Brain DisordersCapital Medical UniversityBeijingChina
- Department of NeurosurgeryXuanwu HospitalCapital Medical UniversityBeijingChina
| | - Xunming Ji
- Laboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersBeijing Institute of Brain DisordersCapital Medical UniversityBeijingChina
- Department of NeurosurgeryXuanwu HospitalCapital Medical UniversityBeijingChina
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291
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Wan Y, Fu LH, Li C, Lin J, Huang P. Conquering the Hypoxia Limitation for Photodynamic Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2103978. [PMID: 34580926 DOI: 10.1002/adma.202103978] [Citation(s) in RCA: 241] [Impact Index Per Article: 80.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/11/2021] [Indexed: 06/13/2023]
Abstract
Photodynamic therapy (PDT) has aroused great research interest in recent years owing to its high spatiotemporal selectivity, minimal invasiveness, and low systemic toxicity. However, due to the hypoxic nature characteristic of many solid tumors, PDT is frequently limited in therapeutic effect. Moreover, the consumption of O2 during PDT may further aggravate the tumor hypoxic condition, which promotes tumor proliferation, metastasis, and invasion resulting in poor prognosis of treatment. Therefore, numerous efforts have been made to increase the O2 content in tumor with the goal of enhancing PDT efficacy. Herein, these strategies developed in past decade are comprehensively reviewed to alleviate tumor hypoxia, including 1) delivering exogenous O2 to tumor directly, 2) generating O2 in situ, 3) reducing tumor cellular O2 consumption by inhibiting respiration, 4) regulating the TME, (e.g., normalizing tumor vasculature or disrupting tumor extracellular matrix), and 5) inhibiting the hypoxia-inducible factor 1 (HIF-1) signaling pathway to relieve tumor hypoxia. Additionally, the O2 -independent Type-I PDT is also discussed as an alternative strategy. By reviewing recent progress, it is hoped that this review will provide innovative perspectives in new nanomaterials designed to combat hypoxia and avoid the associated limitation of PDT.
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Affiliation(s)
- Yilin Wan
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, China
| | - Lian-Hua Fu
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, China
| | - Chunying Li
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, China
| | - Jing Lin
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, China
| | - Peng Huang
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, China
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292
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Kidney Cancer and Chronic Kidney Disease: Too Close for Comfort. Biomedicines 2021; 9:biomedicines9121761. [PMID: 34944574 PMCID: PMC8699019 DOI: 10.3390/biomedicines9121761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 12/11/2022] Open
Abstract
Kidney cancer and chronic kidney disease are two renal pathologies with very different clinical management strategies and therapeutical options. Nonetheless, the cellular and molecular mechanisms underlying both conditions are closely related. Renal physiology is adapted to operate with a limited oxygen supply, making the kidney remarkably equipped to respond to hypoxia. This tightly regulated response mechanism is at the heart of kidney cancer, leading to the onset of malignant cellular phenotypes. Although elusive, the role of hypoxia in chronic kidney diseases is emerging as related to fibrosis, a pivotal factor in decaying renal function. The present review offers a perspective on the common biological traits shared between kidney cancer and chronic kidney disease and the available and prospective therapies for both conditions.
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293
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Xu D, Dai R, Chi H, Ge W, Rong J. Long Non-Coding RNA MEG8 Suppresses Hypoxia-Induced Excessive Proliferation, Migration and Inflammation of Vascular Smooth Muscle Cells by Regulation of the miR-195-5p/RECK Axis. Front Mol Biosci 2021; 8:697273. [PMID: 34790697 PMCID: PMC8592128 DOI: 10.3389/fmolb.2021.697273] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 09/27/2021] [Indexed: 12/14/2022] Open
Abstract
It has been recognized that rebalancing the abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) helps relieve vascular injury. Presently, we aim to investigate whether long non-coding RNA (lncRNA) maternally expressed 8 (MEG8) plays a role in affecting the excessive proliferation and migration of VSMCs following hypoxia stimulation. A percutaneous transluminal angioplasty balloon dilatation catheter was adopted to establish vascular intimal injury, the levels of MEG8 and miR-195-5p in the carotid artery were tested by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Hypoxia was used to stimulate VSMCs, then the cell counting kit-8 (CCK-8) assay, Transnwell assay, and wound healing assay were conducted to evaluate the proliferation, and migration of VSMCs. The protein levels of RECK (reversion inducing cysteine rich protein with kazal motifs), MMP (matrix metalloproteinase) 3/9/13, COX2 (cytochrome c oxidase subunit II), macrophage inflammatory protein (MIP)-1beta, VCAM-1 (vascular cell adhesion molecule 1), ICAM-1 (intercellular adhesion molecule 1), and HIF-1α (hypoxia inducible factor 1 subunit alpha) were determined by western blot or cellular immunofluorescence. As the data showed, MEG8 was down-regulated in the carotid artery after balloon injury in rats and hypoxia-treated VSMCs, and miR-195-5p was overexpressed. Forced MEG8 overexpression or inhibiting miR-195-5p attenuated hypoxia-promoted cell proliferation and migration of VSMCs. In addition, miR-195-5p up-regulation reversed MEG8-mediated effects. Hypoxia hindered the RECK expression while boosted MMP3/9/13 levels, and the effect was markedly reversed with MEG8 up-regulation or miR-195-5p down-regulation. Mechanistically, MEG8 functioned as a competitive endogenous (ceRNA) by sponging miR-195-5p which targeted RECK. Moreover, the HIF-1α inhibitor PX478 prevented hypoxia-induced proliferation, and migration of VSMCs, upregulated MEG8, and restrained miR-195-5p expression. Overall, lncRNA MEG8 participated in hypoxia-induced excessive proliferation, inflammation and migration of VSMCs through the miR-195-5p/RECK axis.
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Affiliation(s)
- Dexing Xu
- Department of Cardiology, The First Hospital of Quanzhou Affiliated to Fujian Medical University, Quanzhou, China
| | - Ruozhu Dai
- Department of Cardiology, The First Hospital of Quanzhou Affiliated to Fujian Medical University, Quanzhou, China
| | - Hao Chi
- Department of Cardiothoracic Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wen Ge
- Department of Cardiothoracic Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jingfeng Rong
- Department of Cardiology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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294
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Su Q, Wu Q, Chen K, Wang J, Sarwar A, Zhang Y. Induction of estrogen receptor β-mediated autophagy sensitizes breast cancer cells to TAD1822-7, a novel biphenyl urea taspine derivative. Mol Biol Rep 2021; 49:1223-1232. [PMID: 34792729 DOI: 10.1007/s11033-021-06950-5] [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: 07/20/2021] [Accepted: 11/09/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Female breast cancer has become the most commonly diagnosed cancer worldwide. As a tumor suppressor, estrogen receptor β (ERβ) can be potentially targeted for breast cancer therapy. METHODS AND RESULTS TAD1822-7 was evaluated for ERβ-mediated autophagy and cell death using cell proliferation assay, Annexin V/PI staining, immunofluorescence, western blotting, ERβ siRNA, ERβ plasmid transfection and hypoxia cell models. TAD1822-7 upregulated ERβ causing cell death and induced mitochondrial dysfunction and autophagy companied with mitochondrial located ERβ. Enhanced levels of microtubule associated protein1 light chain 3 (LC3)-II and p62/SQSTM1 (p62) indicated that TAD1822-7 blocked the late-stage autolysosome formation, leading to cell death. Mechanistically, TAD1822-7-induced cell death was mediated by phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) signaling pathways. Moreover, TAD1822-7 modulated hypoxia inducible factor (HIF) functions and autophagy via the inhibition of HIF-1β in the context of hypoxia-induced autophagy. ERβ overexpression and ERβ agonist showed similar effects, whereas ERβ siRNA abrogated TAD1822-7-induced cell death, the inhibition of PI3K/AKT pathway and autophagy. The involvement of PI3K/AKT pathway and autophagy was also demonstrated in TAD1822-7-treated hypoxic breast cancer cells. CONCLUSIONS These findings provide new insight into the mechanism underlying the inhibitory effects of TAD1822-7 via ERβ-mediated pathways in breast cancer cells.
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Affiliation(s)
- Qi Su
- School of Pharmacy, Health Science Center, Shaanxi Province, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, People's Republic of China
| | - Qing Wu
- School of Pharmacy, Health Science Center, Shaanxi Province, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, People's Republic of China
| | - Kun Chen
- School of Pharmacy, Health Science Center, Shaanxi Province, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, People's Republic of China
| | - Jingjing Wang
- School of Pharmacy, Health Science Center, Shaanxi Province, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, People's Republic of China
| | - Ammar Sarwar
- School of Pharmacy, Health Science Center, Shaanxi Province, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, People's Republic of China
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Shaanxi Province, Xi'an Jiaotong University, No. 76, Yanta West Street, #54, Xi'an, 710061, People's Republic of China.
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295
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Teng BW, Zhang KD, Yang YH, Guo ZY, Chen WW, Qiu ZJ. Genome-wide CRISPR-Cas9 screening identifies that hypoxia-inducible factor-1a-induced CBX8 transcription promotes pancreatic cancer progression via IRS1/AKT axis. World J Gastrointest Oncol 2021; 13:1709-1724. [PMID: 34853645 PMCID: PMC8603463 DOI: 10.4251/wjgo.v13.i11.1709] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/24/2021] [Accepted: 08/23/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pancreatic cancer (PC) is one of the most lethal malignancies worldwide. It is known that the proliferation of PC cells is a critical process in the disease. Previous studies have failed to identify the key genes associated with PC cell proliferation, using bioinformatic analysis, genome-wide association studies, and candidate gene testing.
AIM To investigate the function of the chromobox 8 (CBX8)/receptor substrate 1 (IRS1)/AKT axis in PC.
METHODS A genome-wide CRISPR-Cas9 screening was performed to select genes that could facilitate PC cell proliferation. Quantitative reverse transcription-polymerase chain reaction was used to detect the expression of CBX8 in PC tissues and cells. The regulatory roles of CBX8 in cell proliferation, migration, and invasion were verified by in vivo and in vitro functional assays.
RESULTS CBX8 was upregulated in PC tissues and shown to drive PC cell proliferation. Higher expression of CBX8 was correlated with worse outcomes of PC patients from two independent cohorts comprising a total of 116 cases. CBX8 was also proved to serve as a promising therapeutic target for a PC xenograft model. We demonstrated that hypoxia-inducible factor (HIF)-1a induced CBX8 transcription by binding to the promoter of CBX8. CBX8 efficiently activated the PI3K/AKT signaling by upregulating insulin IRS1.
CONCLUSION CBX8 is a key gene regulated by HIF-1α, and activates the IRS1/AKT pathway, which suggests that targeting CBX8 may be a promising therapeutic strategy for PC.
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Affiliation(s)
- Bu-Wei Teng
- Shanghai General Hospital of Nanjing Medical University, 100 Haining Road, Shanghai 200080, China
- Lianyungang Clinical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, 6 Zhenhua East Road, Haizhou District, City of Lianyungang, Jiangsu Province 222061, China
| | - Kun-Dong Zhang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai 200080, China
| | - Yu-Han Yang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai 200080, China
| | - Zeng-Ya Guo
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai 200080, China
| | - Wei-Wei Chen
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai 200080, China
| | - Zheng-Jun Qiu
- Shanghai General Hospital of Nanjing Medical University, 100 Haining Road, Shanghai 200080, China
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296
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Duan C, Kuang L, Hong C, Xiang X, Liu J, Li Q, Peng X, Zhou Y, Wang H, Liu L, Li T. Mitochondrial Drp1 recognizes and induces excessive mPTP opening after hypoxia through BAX-PiC and LRRK2-HK2. Cell Death Dis 2021; 12:1050. [PMID: 34741026 PMCID: PMC8571301 DOI: 10.1038/s41419-021-04343-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 10/08/2021] [Accepted: 10/20/2021] [Indexed: 02/03/2023]
Abstract
Mitochondrial mass imbalance is one of the key causes of cardiovascular dysfunction after hypoxia. The activation of dynamin-related protein 1 (Drp1), as well as its mitochondrial translocation, play important roles in the changes of both mitochondrial morphology and mitochondrial functions after hypoxia. However, in addition to mediating mitochondrial fission, whether Drp1 has other regulatory roles in mitochondrial homeostasis after mitochondrial translocation is unknown. In this study, we performed a series of interaction and colocalization assays and found that, after mitochondrial translocation, Drp1 may promote the excessive opening of the mitochondrial permeability transition pore (mPTP) after hypoxia. Firstly, mitochondrial Drp1 maximumly recognizes mPTP channels by binding Bcl-2-associated X protein (BAX) and a phosphate carrier protein (PiC) in the mPTP. Then, leucine-rich repeat serine/threonine-protein kinase 2 (LRRK2) is recruited, whose kinase activity is inhibited by direct binding with mitochondrial Drp1 after hypoxia. Subsequently, the mPTP-related protein hexokinase 2 (HK2) is inactivated at Thr-473 and dissociates from the mitochondrial membrane, ultimately causing structural disruption and overopening of mPTP, which aggravates mitochondrial and cellular dysfunction after hypoxia. Thus, our study interprets the dual direct regulation of mitochondrial Drp1 on mitochondrial morphology and functions after hypoxia and proposes a new mitochondrial fission-independent mechanism for the role of Drp1 after its translocation in hypoxic injury.
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Affiliation(s)
- Chenyang Duan
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, P.R. China
| | - Lei Kuang
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China
| | - Chen Hong
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China
| | - Xinming Xiang
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China
| | - Jiancang Liu
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China
| | - Qinghui Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China
| | - Xiaoyong Peng
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China
| | - Yuanqun Zhou
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China
| | - Hongchen Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China
| | - Liangming Liu
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China.
| | - Tao Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department, Research Institute of Surgery, Daping Hospital, Army Medical University, 400042, Chongqing, P.R. China.
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297
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Rueda‐Carrasco J, Martin‐Bermejo MJ, Pereyra G, Mateo MI, Borroto A, Brosseron F, Kummer MP, Schwartz S, López‐Atalaya JP, Alarcon B, Esteve P, Heneka MT, Bovolenta P. SFRP1 modulates astrocyte-to-microglia crosstalk in acute and chronic neuroinflammation. EMBO Rep 2021; 22:e51696. [PMID: 34569685 PMCID: PMC8567217 DOI: 10.15252/embr.202051696] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 08/26/2021] [Accepted: 09/06/2021] [Indexed: 12/16/2022] Open
Abstract
Neuroinflammation is a common feature of many neurodegenerative diseases. It fosters a dysfunctional neuron-microglia-astrocyte crosstalk that, in turn, maintains microglial cells in a perniciously reactive state that often enhances neuronal damage. The molecular components that mediate this critical communication are not fully explored. Here, we show that secreted frizzled-related protein 1 (SFRP1), a multifunctional regulator of cell-to-cell communication, is part of the cellular crosstalk underlying neuroinflammation. In mouse models of acute and chronic neuroinflammation, SFRP1, largely astrocyte-derived, promotes and sustains microglial activation, and thus a chronic inflammatory state. SFRP1 promotes the upregulation of components of the hypoxia-induced factor-dependent inflammatory pathway and, to a lower extent, of those downstream of the nuclear factor-kappa B. We thus propose that SFRP1 acts as an astrocyte-to-microglia amplifier of neuroinflammation, representing a potential valuable therapeutic target for counteracting the harmful effect of chronic inflammation in several neurodegenerative diseases.
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Affiliation(s)
- Javier Rueda‐Carrasco
- Centro de Biología Molecular Severo OchoaCSIC‐UAMMadridSpain
- CIBER de Enfermedades Raras (CIBERER)MadridSpain
| | - María Jesús Martin‐Bermejo
- Centro de Biología Molecular Severo OchoaCSIC‐UAMMadridSpain
- CIBER de Enfermedades Raras (CIBERER)MadridSpain
| | - Guadalupe Pereyra
- Centro de Biología Molecular Severo OchoaCSIC‐UAMMadridSpain
- CIBER de Enfermedades Raras (CIBERER)MadridSpain
| | - María Inés Mateo
- Centro de Biología Molecular Severo OchoaCSIC‐UAMMadridSpain
- CIBER de Enfermedades Raras (CIBERER)MadridSpain
| | - Aldo Borroto
- Centro de Biología Molecular Severo OchoaCSIC‐UAMMadridSpain
| | - Frederic Brosseron
- NeurologyUniversitätsklinikum BonnBonnGermany
- German Center for Neurodegenerative Diseases (DZNE)BonnGermany
| | - Markus P Kummer
- NeurologyUniversitätsklinikum BonnBonnGermany
- German Center for Neurodegenerative Diseases (DZNE)BonnGermany
| | - Stephanie Schwartz
- NeurologyUniversitätsklinikum BonnBonnGermany
- German Center for Neurodegenerative Diseases (DZNE)BonnGermany
| | | | - Balbino Alarcon
- Centro de Biología Molecular Severo OchoaCSIC‐UAMMadridSpain
| | - Pilar Esteve
- Centro de Biología Molecular Severo OchoaCSIC‐UAMMadridSpain
- CIBER de Enfermedades Raras (CIBERER)MadridSpain
| | - Michael T Heneka
- NeurologyUniversitätsklinikum BonnBonnGermany
- German Center for Neurodegenerative Diseases (DZNE)BonnGermany
| | - Paola Bovolenta
- Centro de Biología Molecular Severo OchoaCSIC‐UAMMadridSpain
- CIBER de Enfermedades Raras (CIBERER)MadridSpain
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298
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Roy RK, Althammer F, Seymour AJ, Du W, Biancardi VC, Hamm JP, Filosa JA, Brown CH, Stern JE. Inverse neurovascular coupling contributes to positive feedback excitation of vasopressin neurons during a systemic homeostatic challenge. Cell Rep 2021; 37:109925. [PMID: 34731601 PMCID: PMC9488983 DOI: 10.1016/j.celrep.2021.109925] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 08/09/2021] [Accepted: 10/12/2021] [Indexed: 01/03/2023] Open
Abstract
Neurovascular coupling (NVC), the process that links neuronal activity to cerebral blood flow changes, has been mainly studied in superficial brain areas, namely the neocortex. Whether the conventional, rapid, and spatially restricted NVC response can be generalized to deeper and functionally diverse brain regions remains unknown. Implementing an approach for in vivo two-photon imaging from the ventral surface of the brain, we show that a systemic homeostatic challenge, acute salt loading, progressively increases hypothalamic vasopressin (VP) neuronal firing and evokes a vasoconstriction that reduces local blood flow. Vasoconstrictions are blocked by topical application of a VP receptor antagonist or tetrodotoxin, supporting mediation by activity-dependent, dendritically released VP. Salt-induced inverse NVC results in a local hypoxic microenvironment, which evokes positive feedback excitation of VP neurons. Our results reveal a physiological mechanism by which inverse NVC responses regulate systemic homeostasis, further supporting the notion of brain heterogeneity in NVC responses.
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Affiliation(s)
- Ranjan K Roy
- Neuroscience Institute, Georgia State University, Atlanta, GA, USA
| | | | | | - Wenting Du
- Department of Physiology, Augusta University, Augusta, GA, USA
| | - Vinicia C Biancardi
- Department of Anatomy, Physiology and Pharmacology, Auburn University, Auburn, AL, USA
| | - Jordan P Hamm
- Neuroscience Institute, Georgia State University, Atlanta, GA, USA
| | | | - Colin H Brown
- Department of Physiology, University of Otago, Dunedin, New Zealand
| | - Javier E Stern
- Neuroscience Institute, Georgia State University, Atlanta, GA, USA.
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299
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Shi J, Xiong Z, Wang K, Yuan C, Huang Y, Xiao W, Meng X, Chen Z, Lv Q, Miao D, Liang H, Xu T, Xie K, Yang H, Zhang X. HIF2α promotes tumour growth in clear cell renal cell carcinoma by increasing the expression of NUDT1 to reduce oxidative stress. Clin Transl Med 2021; 11:e592. [PMID: 34841698 PMCID: PMC8567048 DOI: 10.1002/ctm2.592] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 09/13/2021] [Accepted: 09/17/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The key role of hypoxia-inducible factor 2alpha (HIF2α) in the process of renal cancer has been confirmed. In the field of tumour research, oxidative stress is also considered to be an important influencing factor. However, the relationship and biological benefits of oxidative stress and HIF2α in ccRCC remain unclear. This research attempts to explore the effect of oxidative stress on the cancer-promoting effect of HIF2α in ccRCC and reveal its mechanism of action. METHODS The bioinformatics analysis for ccRCC is based on whole transcriptome sequencing and TCGA database. The detection of the expression level of related molecules is realised by western blot and PCR. The expression of Nucleoside diphosphate-linked moiety X-type motif 1 (NUDT1) was knocked down by lentiviral infection technology. The functional role of NUDT1 were further investigated by CCK8 assays, transwell assays and cell oxidative stress indicator detection. The exploration of related molecular mechanisms is realised by Luciferase assays and Chromatin immunoprecipitation (ChIP) assays. RESULTS Molecular screening based on knockdown HIF2α sequencing data and oxidative stress related data sets showed that NUDT1 is considered to be an important molecule for the interaction of HIF2α with oxidative stress. Subsequent experimental results showed that NUDT1 can cooperate with HIF2α to promote the progression of ccRCC. And this biological effect was found to be caused by the oxidative stress regulated by NUDT1. Mechanistically, HIF2α transcription activates the expression of NUDT1, thereby inhibiting oxidative stress and promoting the progression of ccRCC. CONCLUSIONS This research clarified a novel mechanism by which HIF2α stabilises sirtuin 3 (SIRT3) through direct transcriptional activation of NUDT1, thereby inhibiting oxidative stress to promote the development of ccRCC. It provided the possibility for the selection of new therapeutic targets for ccRCC and the study of combination medication regimens.
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Affiliation(s)
- Jian Shi
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Zhiyong Xiong
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Keshan Wang
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Changfei Yuan
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Yu Huang
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Wen Xiao
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Xiangui Meng
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Zhixian Chen
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Qingyang Lv
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Daojia Miao
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Huageng Liang
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Tianbo Xu
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Kairu Xie
- Department of Pathogenic BiologySchool of Basic MedicineHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Hongmei Yang
- Department of Pathogenic BiologySchool of Basic MedicineHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Xiaoping Zhang
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
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300
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Xiong M, Zhao Y, Mo H, Yang H, Yue F, Hu K. Intermittent hypoxia increases ROS/HIF-1α 'related oxidative stress and inflammation and worsens bleomycin-induced pulmonary fibrosis in adult male C57BL/6J mice. Int Immunopharmacol 2021; 100:108165. [PMID: 34560512 DOI: 10.1016/j.intimp.2021.108165] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/05/2021] [Accepted: 09/14/2021] [Indexed: 10/20/2022]
Abstract
Obstructive sleep apnea (OSA) has been increasingly recognized as a risk factor for idiopathic pulmonary fibrosis (IPF). The intermittent hypoxia (IH) and re-oxygenation of OSA contribute to poor outcomes of IPF, however, the potential mechanism remains unknown. Here, C57BL/6J mice were administered intratracheal injection of Bleomycin (BLM) or saline and then exposed to IH (alternating cycles of FiO2 21% for 60S and FiO2 10% for 30 s, 40 cycles/hour, 8 h/day) to mimic OSA or intermittent air (IA) for 4 days, 8 days or 21 days. This study found that pulmonary fibrosis in BLM + IH treated mice was more severe than that in BLM + IA group at day 8 and 21, but not observed at day 4. Besides, the expression of reactive oxygen species (ROS) and hypoxia inducible factor-1α (HIF-1α),which are related to hypoxia reduced oxidative stress and inflammation, were higher in BLM + IH treated mice than BLM + IA mice, and IH increased these indexes in BLM treated mice from day 4 to day 21. Interestingly, a positive linear correlation between the HIF-1α expression and hydroxyproline (HYP) content was observed. We further found some inflammatory cells in bronchoalveolar lavage fluid were increased significantly from day 4 to 21, and there was a positive correlation between inflammation and ROS expression. Our results demonstrated that IH aggravated BLM-induced pulmonary fibrosis, and ROS/HIF-1α related oxidative stress and inflammation involved. The increase of ROS/HIF-1α related oxidative stress and inflammation may be a potential mechanism of moderate-to-severe OSA in potentiating pulmonary fibrosis of IPF, which warrants further study.
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Affiliation(s)
- Mengqing Xiong
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Yang Zhao
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Huaheng Mo
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Haizhen Yang
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Fang Yue
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Ke Hu
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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