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Tang X, Zheng N, Lin Q, You Y, Gong Z, Zhuang Y, Wu J, Wang Y, Huang H, Ke J, Chen F. Hypoxia-preconditioned bone marrow-derived mesenchymal stem cells protect neurons from cardiac arrest-induced pyroptosis. Neural Regen Res 2025; 20:1103-1123. [PMID: 38845218 DOI: 10.4103/nrr.nrr-d-23-01922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 04/28/2024] [Indexed: 07/12/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202504000-00027/figure1/v/2024-07-06T104127Z/r/image-tiff Cardiac arrest can lead to severe neurological impairment as a result of inflammation, mitochondrial dysfunction, and post-cardiopulmonary resuscitation neurological damage. Hypoxic preconditioning has been shown to improve migration and survival of bone marrow-derived mesenchymal stem cells and reduce pyroptosis after cardiac arrest, but the specific mechanisms by which hypoxia-preconditioned bone marrow-derived mesenchymal stem cells protect against brain injury after cardiac arrest are unknown. To this end, we established an in vitro co-culture model of bone marrow-derived mesenchymal stem cells and oxygen-glucose deprived primary neurons and found that hypoxic preconditioning enhanced the protective effect of bone marrow stromal stem cells against neuronal pyroptosis, possibly through inhibition of the MAPK and nuclear factor κB pathways. Subsequently, we transplanted hypoxia-preconditioned bone marrow-derived mesenchymal stem cells into the lateral ventricle after the return of spontaneous circulation in an 8-minute cardiac arrest rat model induced by asphyxia. The results showed that hypoxia-preconditioned bone marrow-derived mesenchymal stem cells significantly reduced cardiac arrest-induced neuronal pyroptosis, oxidative stress, and mitochondrial damage, whereas knockdown of the liver isoform of phosphofructokinase in bone marrow-derived mesenchymal stem cells inhibited these effects. To conclude, hypoxia-preconditioned bone marrow-derived mesenchymal stem cells offer a promising therapeutic approach for neuronal injury following cardiac arrest, and their beneficial effects are potentially associated with increased expression of the liver isoform of phosphofructokinase following hypoxic preconditioning.
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Affiliation(s)
- Xiahong Tang
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Nan Zheng
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Qingming Lin
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Yan You
- The Second Department of Intensive Care Unit, Fujian Provincial Hospital South Branch, Fuzhou, Fujian Province, China
| | - Zheng Gong
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Yangping Zhuang
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Jiali Wu
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Yu Wang
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Hanlin Huang
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Jun Ke
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Feng Chen
- Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, Fujian Province, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
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Peng C, Wang Y, Guo Y, Li J, Liu F, Fu Y, Yu Y, Zhang C, Fu J, Han F. A literature review on signaling pathways of cervical cancer cell death-apoptosis induced by Traditional Chinese Medicine. JOURNAL OF ETHNOPHARMACOLOGY 2024; 334:118491. [PMID: 38936644 DOI: 10.1016/j.jep.2024.118491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 06/16/2024] [Accepted: 06/22/2024] [Indexed: 06/29/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cervical cancer (CC) is a potentially lethal disorder that can have serious consequences for a woman's health. Because early symptoms are typically only present in the middle to late stages of the disease, clinical diagnosis and treatment can be challenging. Traditional Chinese medicine (TCM) has been shown to have unique benefits in terms of alleviating cancer clinical symptoms, lowering the risk of recurrence after surgery, and reducing toxic side effects and medication resistance after radiation therapy. It has also been shown to improve the quality of life for patients. Because of its improved anti-tumor effectiveness and biosafety, it could be considered an alternative therapy option. This study examines how TCM causes apoptosis in CC cells via signal transduction, including the active components and medicinal tonics. It also intends to provide a reliable clinical basis and protocol selection for the TCM therapy of CC. METHODS The following search terms were employed in PubMed, Web of Science, Embase, CNKI, Wanfang, VIP, SinoMed, and other scientific databases to retrieve pertinent literature on "cervical cancer," "apoptosis," "signaling pathway," "traditional Chinese medicine," "herbal monomers," "herbal components," "herbal extracts," and "herbal formulas." RESULTS It has been demonstrated that herbal medicines can induce apoptosis in cells of the cervix, a type of cancer, by influencing the signaling pathways involved. CONCLUSION A comprehensive literature search was conducted, and 148 papers from the period between January 2017 and December 2023 were identified as eligible for inclusion. After a meticulous process of screening, elimination and summary, generalization, and analysis, it was found that TCM can regulate multiple intracellular signaling pathways and related molecular targets, such as STAT3, PI3K/AKT, Wnt/β-catenin, MAPK, NF-κB, p53, HIF-1α, Fas/FasL and so forth. This regulatory capacity was observed to induce apoptosis in cervical cancer cells. The study of the mechanism of TCM against cervical cancer and the screening of new drug targets is of great significance for future research in this field. The results of this study will provide ideas and references for the future development of Chinese medicine in the diagnosis and treatment of cervical cancer.
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Affiliation(s)
- Cheng Peng
- Department of Obstetrics and Gynecology, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Yu Wang
- Department of Obstetrics and Gynecology, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Ying Guo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Jia Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Fangyuan Liu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Yang Fu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Yang Yu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Chengxin Zhang
- Department of Obstetrics and Gynecology, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Jiangmei Fu
- Department of Obstetrics and Gynecology, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Fengjuan Han
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China.
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Mantha OL, Mahé M, Mahéo K, Fromont G, Guéguinou M, Tea I, Hankard R, De Luca A. Understanding natural isotopic variations in cultured cancer cells. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2024; 38:e9878. [PMID: 39117991 DOI: 10.1002/rcm.9878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 06/14/2024] [Accepted: 07/15/2024] [Indexed: 08/10/2024]
Abstract
RATIONALE Natural variations in the abundance of the stable isotopes of nitrogen (δ15N) and carbon (δ13C) offer valuable insights into metabolic fluxes. In the wake of strong interest in cancer metabolism, recent research has revealed δ15N and δ13C variations in cancerous compared to non-cancerous tissues and cell lines. However, our understanding of natural isotopic variations in cultured mammalian cells, particularly in relation to metabolism, remains limited. This study aims to start addressing this gap using metabolic modulations in cells cultured under controlled conditions. METHODS Prostate cancer cells (PC3) were cultured in different conditions and their δ15N and δ13C were measured using isotope ratio mass spectrometry. Isotopic variations during successive cell culture passages were assessed and two widely used cell culture media (RPMI and DMEM) were compared. Metabolism was modulated through glutamine deprivation and hypoxia. RESULTS Successive cell culture passages generally resulted in reproducible δ15N and δ13C values. The impact of culture medium composition on δ15N and δ13C of the cells highlights the importance of maintaining a consistent medium composition across conditions whenever possible. Glutamine deprivation and hypoxia induced a lower δ13C in bulk cell samples, with only the former affecting δ15N. Gaps between theory and experiments were bridged and the lessons learned throughout the process are provided. CONCLUSIONS Exposing cultured cancer cells to hypoxia allowed us to further investigate the relation between metabolic modulations and natural isotopic variations, while mitigating the confounding impact of changing culture medium composition. This study highlights the potential of natural δ13C variations for studying substrate fluxes and nutrient allocation in reproducible culture conditions. Considering cell yield and culture medium composition is pivotal to the success of this approach.
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Affiliation(s)
- Olivier L Mantha
- Niche, Nutrition, Cancer & Oxidative Metabolism (N2COX) UMR 1069, University of Tours, INSERM, Tours, France
| | - Marie Mahé
- Niche, Nutrition, Cancer & Oxidative Metabolism (N2COX) UMR 1069, University of Tours, INSERM, Tours, France
- Institut de Cancérologie de l'Ouest, Angers, France
| | - Karine Mahéo
- Niche, Nutrition, Cancer & Oxidative Metabolism (N2COX) UMR 1069, University of Tours, INSERM, Tours, France
| | - Gaëlle Fromont
- Niche, Nutrition, Cancer & Oxidative Metabolism (N2COX) UMR 1069, University of Tours, INSERM, Tours, France
| | - Maxime Guéguinou
- Niche, Nutrition, Cancer & Oxidative Metabolism (N2COX) UMR 1069, University of Tours, INSERM, Tours, France
| | - Illa Tea
- Nantes Université, CNRS, CEISAM, UMR6230, Nantes, France
| | - Régis Hankard
- Niche, Nutrition, Cancer & Oxidative Metabolism (N2COX) UMR 1069, University of Tours, INSERM, Tours, France
| | - Arnaud De Luca
- Niche, Nutrition, Cancer & Oxidative Metabolism (N2COX) UMR 1069, University of Tours, INSERM, Tours, France
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Chen NP, Li YW, Cao SJ, Zhang Y, Li CJ, Zhou WJ, Li M, Du YT, Zhang YX, Xing MW, Ma JH, Mu DL, Wang DX. Intraoperative hypotension is associated with decreased long-term survival in older patients after major noncardiac surgery: Secondary analysis of three randomized trials. J Clin Anesth 2024; 97:111520. [PMID: 38954871 DOI: 10.1016/j.jclinane.2024.111520] [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: 10/03/2023] [Revised: 04/03/2024] [Accepted: 06/05/2024] [Indexed: 07/04/2024]
Abstract
STUDY OBJECTIVE To assess the association of intraoperative hypotension with long-term survivals in older patients after major noncardiac surgery mainly for cancer. DESIGN A secondary analysis of databases from three randomized trials with long-term follow-up. SETTING The underlying trials were conducted in 17 tertiary hospitals in China. PATIENTS Patients aged 60 to 90 years who underwent major noncardiac thoracic or abdominal surgeries (≥ 2 h) in a single center were included in this analysis. EXPOSURES Restricted cubic spline models were employed to determine the lowest mean arterial pressure (MAP) threshold that was potentially harmful for long-term survivals. Patients were arbitrarily divided into three groups according to the cumulative duration or area under the MAP threshold. The association between intraoperative hypotension exposure and long-term survivals were analyzed with the Cox proportional hazard regression models. MEASUREMENTS Our primary endpoint was overall survival. Secondary endpoints included recurrence-free and event-free survivals. MAIN RESULTS A total of 2664 patients (mean age 69.0 years, 34.9% female sex, 92.5% cancer surgery) were included in the final analysis. MAP < 60 mmHg was adopted as the threshold of intraoperative hypotension. Patients were divided into three groups according to duration under MAP < 60 mmHg (<1 min, 1-10 min, and > 10 min) or area under MAP <60 mmHg (< 1 mmHg⋅min, 1-30 mmHg⋅min, and > 30 mmHg⋅min). After adjusting confounders, duration under MAP < 60 mmHg for > 10 min was associated with a shortened overall survival when compared with the < 1 min patients (adjusted hazard ratio [HR] 1.31, 95% confidence interval [CI] 1.09 to 1.57, P = 0.004); area under MAP < 60 mmHg for > 30 mmHg⋅min was associated with a shortened overall survival when compared with the < 1 mmHg⋅min patients (adjusted HR 1.40, 95% CI 1.16 to 1.68, P < 0.001). Similar associations exist between duration under MAP < 60 mmHg for > 10 min or area under MAP < 60 mmHg for > 30 mmHg⋅min and recurrence-free or event-free survivals. CONCLUSIONS In older patients who underwent major noncardiac surgery mainly for cancer, intraoperative hypotension was associated with worse overall, recurrence-free, and event-free survivals.
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Affiliation(s)
- Na-Ping Chen
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China.
| | - Ya-Wei Li
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China.
| | - Shuang-Jie Cao
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China; School of Anesthesiology, Shandong Second Medical University, Weifang, Shandong, China.
| | - Yue Zhang
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China; Clinical Research Institute, Shenzhen Peking University-The Hong Kong University of Science & Technology Medical Center, Shenzhen, Guangdong, China.
| | - Chun-Jing Li
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China.
| | - Wei-Jie Zhou
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China.
| | - Mo Li
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China.
| | - Ya-Ting Du
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China; The Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
| | - Yu-Xiu Zhang
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China.
| | - Mao-Wei Xing
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China; The Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
| | - Jia-Hui Ma
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China.
| | - Dong-Liang Mu
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China.
| | - Dong-Xin Wang
- The Department of Anesthesiology, Peking University First Hospital, Beijing, China; Outcomes Research Consortium, Cleveland, Ohio, USA.
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Zhang Y, Che N, Wang S, Meng J, Zhao N, Han J, Dong X, Li Y, Mo J, Zhao X, Liu T. Nrf2/ASPM axis regulated vasculogenic mimicry formation in hepatocellular carcinoma under hypoxia. J Gastroenterol 2024; 59:941-957. [PMID: 39097533 DOI: 10.1007/s00535-024-02140-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 07/26/2024] [Indexed: 08/05/2024]
Abstract
BACKGROUND Hypoxic microenvironment is a common feature of most solid tumors including hepatocellular carcinoma (HCC). Vasculogenic mimicry (VM) formation by tumor cells could provide blood supply to tumor cells under hypoxia. NFE2 like basic leucine zipper (bZIP) transcription factor 2 (Nrf2), a regulator of cellular homeostasis, may promote tumor progression in the hypoxic conditions. However, the role and regulatory mechanisms of Nrf2 in HCC are not fully elucidated. METHODS Nrf2 and assembly factor for spindle microtubules (ASPM) expression modulations were conducted by lentiviral transfections. Western blot, immunofluorescence, ChIP-qPCR, dual-luciferase reporter gene assay, flow cytometry, RNA sequencing, multiple bioinformatics databases analysis, cell function assays in vitro, mouse model in vivo and human HCC tissues were employed to assess the effect of Nrf2/ASPM axis on HCC progression under hypoxia. RESULTS Nrf2 and ASPM expression facilitated epithelial-mesenchymal transition (EMT), cancer stem cells (CSCs) feature, and VM formation of HCC cells under hypoxia. Furthermore, Nrf2-regulated ASPM expression, via binding directly to the promoter region of ASPM and transcriptionally promoting ASPM expression. ASPM re-expression in Nrf2 knockdown cells or ASPM knockdown in Nrf2 overexpression cells reversed the cellular function caused by Nrf2. Meantime, retinol metabolism pathway was disrupted following abnormal ASPM expression. Nrf2/ASPM axis in murine models accelerated tumor growth and VM, corroborating in vitro findings. All-trans retinoic acid treatment reversed stemness and VM of HCC cells in vitro and in vivo. Clinically, Nrf2 and ASPM expressions were related to poor prognosis of HCC patients. CONCLUSIONS Nrf2 drives EMT, CSCs characteristics and VM in HCC under hypoxia through the modulation of ASPM. Retinol metabolism pathway was dysregulated in HCC cells with ASPM overexpression. Nrf2/ASPM axis and related pathway provided potential therapeutic target for HCC.
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Affiliation(s)
- Yueyao Zhang
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Na Che
- Department of Pathology, Tianjin Medical University, Tianjin, China
- Department of Pathology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Song Wang
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Jie Meng
- Department of Pathology, Tianjin Medical University, Tianjin, China
- Department of Pathology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Nan Zhao
- Department of Pathology, Tianjin Medical University, Tianjin, China
- Department of Pathology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Jiyuan Han
- Department of Pathology, Tianjin Medical University, Tianjin, China
- Department of Pathology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Xueyi Dong
- Department of Pathology, Tianjin Medical University, Tianjin, China
- Department of Pathology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Yanlei Li
- Department of Pathology, Tianjin Medical University, Tianjin, China
- Department of Pathology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Jing Mo
- Department of Pathology, Tianjin Medical University, Tianjin, China
- Department of Pathology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Xiulan Zhao
- Department of Pathology, Tianjin Medical University, Tianjin, China.
- Department of Pathology, General Hospital of Tianjin Medical University, Tianjin, China.
| | - Tieju Liu
- Department of Pathology, Tianjin Medical University, Tianjin, China.
- Department of Pathology, General Hospital of Tianjin Medical University, Tianjin, China.
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Kothari R, Venuganti VVK. Effect of oxygen generating nanozymes on indocyanine green and IR 820 mediated phototherapy against oral cancer. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 259:113002. [PMID: 39141980 DOI: 10.1016/j.jphotobiol.2024.113002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 07/25/2024] [Accepted: 08/01/2024] [Indexed: 08/16/2024]
Abstract
The hypoxic environment within a solid tumor is a limitation to the effectiveness of photodynamic therapy. Here, we demonstrate the use of oxygen generating nanozymes (CeO2, Fe3O4, and MnO2) to improve the photodynamic effect. The optimized combination of process parameters for irradiation was obtained using the Box Behnken experimental design. Indocyanine green, IR 820, and their different combinations with oxygen generators were studied for their effect on oral carcinoma. Dynamic light scattering technique showed the average particle size of CeO2, MnO2, and Fe3O4 to be 211 ± 16, and 157 ± 28, 143 ± 19 nm with PDI of 0.23, 0.28 and 0.20 and a zeta potential of -2.6 ± 0.45, -2.4 ± 0.60 and -6.1 ± 0.23 mV, respectively. The formation of metal oxides was confirmed using UV-visible, FTIR, and X-ray photon spectroscopies. The amount of dissolved oxygen produced by CeO2, MnO2, and Fe3O4 in the presence of H2O2 within 2 min was 1.7 ± 0.15, 1.7 ± 0.16, and 1.4 ± 0.12 mg/l, respectively. Growth inhibition studies in the FaDu oral carcinoma spheroid model showed a significant (P < 0.05) increase in growth reduction from 81 ± 2.9 and 88 ± 2.1% to 97 ± 1.2 and 99 ± 1.0% for ICG and IR 820, respectively, after irradiation (808 nm laser, 1 W/cm2, 5 min) in the presence of CeO2 (25 μg/ml). In conclusion, oxygen-generating nanozymes can improve the photodynamic effect of ICG and IR 820.
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Affiliation(s)
- Rupal Kothari
- Department of Pharmacy, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad 500078, Telangana, India
| | - Venkata Vamsi Krishna Venuganti
- Department of Pharmacy, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad 500078, Telangana, India.
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Yadav KK, Prakash O. Protocol for enriching, isolating, and testing drug susceptibility of facultative anaerobic fungi. STAR Protoc 2024; 5:103247. [PMID: 39110598 PMCID: PMC11362773 DOI: 10.1016/j.xpro.2024.103247] [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] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/21/2024] [Accepted: 07/18/2024] [Indexed: 09/02/2024] Open
Abstract
Research on fungi under anaerobic conditions is limited but crucial for understanding their ecological and pathological impacts. Here, we present a protocol for enriching, isolating, and characterizing anaerobic fungi from environmental and clinical samples. We also describe steps for evaluating the anaerobic growth potential and drug susceptibility of fungal pathogens. This protocol can contribute to the need for initiating effective antifungal therapy to address and manage fungal infections or mycosis in oxygen-limited environments. For complete details on the use and execution of this protocol, please refer to Yadav et al.1.
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Affiliation(s)
- Krishna K Yadav
- National Centre for Microbial Resource (NCMR), National Centre for Cell Science (NCCS), Pune, Maharashtra 411007, India; Symbiosis Centre for Waste Resource Management (SCWRM), Symbiosis International (Deemed University), Lavale, Pune 412115, India; National Centre for Cell Sciences, NCCS Complex, University of Pune Campus, Pune University Road, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Om Prakash
- National Centre for Microbial Resource (NCMR), National Centre for Cell Science (NCCS), Pune, Maharashtra 411007, India; Symbiosis Centre for Climate Change and Sustainability (SCCCS), Symbiosis International (Deemed University), Lavale, Pune 412115, India; National Centre for Cell Sciences, NCCS Complex, University of Pune Campus, Pune University Road, Ganeshkhind, Pune, Maharashtra 411007, India.
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Maury P, Hirayama R, Li X, Mahou P, Schanne-Klein MC, Lacombe S, Gref R, Porcel E. Synergistic effect of Gemcitabin-loaded metal organic frameworks nanoparticles with particle therapy. Int J Pharm 2024; 665:124721. [PMID: 39293579 DOI: 10.1016/j.ijpharm.2024.124721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 09/11/2024] [Accepted: 09/13/2024] [Indexed: 09/20/2024]
Abstract
Combination of nanoagents with radiations has opened up new perspectives in cancer treatment, improving both tumor diagnosis and therapeutic index. This work presents the first investigation of an innovative strategy that combines porous metal-organic frameworks (nanoMOFs) loaded with the anti-cancer drug Gemcitabine monophosphate (GemMP) and particle therapy-a globally emerging technique that offers more precise radiation targeting and enhanced biological efficacy compared to conventional radiotherapy. This radiochemotherapy has been confronted with two major obstacles limiting the efficacy of therapeutics when tested in vivo: (i) the presence of hypoxia, one of the most important causes for radiotherapy failure and (ii) the presence of a microenvironment, main biological barrier to the direct penetration of nanoparticles into cancer cells. On the one hand, this study explore the effects of hypoxia on drug delivery systems in combination with radiation, demonstrating that GemMP-loaded nanoMOFs significantly enhance the anticancer efficacy of particle therapy under both normoxic (pO2 = 20 %) and hypoxic (pO2 = 0.5 %) conditions. Notably, the presence of GemMP-loaded nanoMOFs allows the irradiation dose to be reduced by 1.4-fold in normoxia and at least 1.6-fold in hypoxia, achieving the same cytotoxic effect (SF=10 %) as carbon or helium ions alone. Synergistic effects between GemMP-loaded nanoMOFs and radiations have been observed and quantified. On the other hand, we also highlighted the ability of the nanoMOFs to diffuse through an extracellular matrix and accumulate in cells. An higher effect of the encapsulated GemMP than the free drug was observed, confirming the key role of the nanoMOFs in transporting the active substance to the cancer cells as a Trojan horse. This paves the way to the design of "all-in-one" nanodrugs where each component plays a role in the optimization of cancer therapy to maximize cytotoxic effects on hypoxic tumor cells while minimizing toxicity on healthy tissue.
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Affiliation(s)
- Pauline Maury
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France; Université Paris-Saclay, Gustave Roussy, Inserm U1030, Radiothérapie Moléculaire et Innovation Thérapeutique, F-94800, Villejuif, France; Gustave Roussy, Département de radiothérapie, F-94800, Villejuif, France
| | - Ryoichi Hirayama
- Department of Charged Particle Therapy Research, QST Hospital, National Institutes for Quantum Science and Technology (QST), Chiba, Japan
| | - Xue Li
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France
| | - Pierre Mahou
- Laboratoire d'Optique et Biosciences (LOB), Ecole Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Marie-Claire Schanne-Klein
- Laboratoire d'Optique et Biosciences (LOB), Ecole Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Sandrine Lacombe
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France
| | - Ruxandra Gref
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France
| | - Erika Porcel
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France.
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Lu Y, Hua Y, Lee PY, Theophanous A, Tahir S, Tian Q, Sigal IA. Impact of anatomic variability and other vascular factors on lamina cribrosa hypoxia. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.09.12.610282. [PMID: 39314360 PMCID: PMC11419109 DOI: 10.1101/2024.09.12.610282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 09/25/2024]
Abstract
Insufficient oxygenation in the lamina cribrosa (LC) may contribute to axonal damage and glaucomatous vision loss. To understand the range of susceptibilities to glaucoma, we aimed to identify key factors influencing LC oxygenation and examine if these factors vary with anatomical differences between eyes. We reconstructed 3D, eye-specific LC vessel networks from histological sections of four healthy monkey eyes. For each network, we generated 125 models varying vessel radius, oxygen consumption rate, and arteriole perfusion pressure. Using hemodynamic and oxygen supply modeling, we predicted blood flow distribution and tissue oxygenation in the LC. ANOVA assessed the significance of each parameter. Our results showed that vessel radius had the greatest influence on LC oxygenation, followed by anatomical variations. Arteriole perfusion pressure and oxygen consumption rate were the third and fourth most influential factors, respectively. The LC regions are well perfused under baseline conditions. These findings highlight the importance of vessel radius and anatomical variation in LC oxygenation, providing insights into LC physiology and pathology. Pathologies affecting vessel radius may increase the risk of LC hypoxia, and anatomical variations could influence susceptibility. Conversely, increased oxygen consumption rates had minimal effects, suggesting that higher metabolic demands, such as those needed to maintain intracellular transport despite elevated intraocular pressure, have limited impact on LC oxygenation.
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10
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Lu Y, Hua Y, Wang B, Zhong F, Theophanous A, Tahir S, Lee PY, Sigal IA. Impact of elevated IOP on lamina cribrosa oxygenation; A combined experimental-computational study on monkeys. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.09.05.609208. [PMID: 39314421 PMCID: PMC11418968 DOI: 10.1101/2024.09.05.609208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 09/25/2024]
Abstract
Purpose Our goal is to evaluate how lamina cribrosa (LC) oxygenation is affected by the tissue distortions resulting from elevated IOP. Design Experimental study on monkeys. Subjects Four healthy monkey eyes with OCT scans with IOP of 10 to 50 mmHg, and then with histological sections of LC. Methods Since in-vivo LC oxygenation measurement is not yet possible, we used 3D eye-specific numerical models of the LC vasculature which we subjected to experimentally-derived tissue deformations. We reconstructed 3D models of the LC vessel networks of 4 healthy monkey eyes from histological sections. We also obtained in-vivo IOP-induced tissue deformations from a healthy monkey using OCT images and digital volume correlation analysis techniques. The extent that LC vessels distort under a given OCT-derived tissue strain remains unknown. We therefore evaluated two biomechanics-based mapping techniques: cross-sectional and isotropic. The hemodynamics and oxygenations of the four vessel networks were simulated for deformations at several IOPs up to 60mmHg. The results were used to determine the effects of IOP on LC oxygen supply, assorting the extent of tissue mild and severe hypoxia. Main Outcome Measures IOP-induced deformation, vasculature structure, blood supply, and oxygen supply for LC region. Result IOP-induced deformations reduced LC oxygenation significantly. More than 20% of LC tissue suffered from mild hypoxia when IOP reached 30 mmHg. Extreme IOP(>50mmHg) led to large severe hypoxia regions (>30%) in the isotropic mapping cases. Conclusion Our models predicted that moderately elevated IOP can lead to mild hypoxia in a substantial part of the LC, which, if sustained chronically, may contribute to neural tissue damage. For extreme IOP elevations, severe hypoxia was predicted, which would potentially cause more immediate damage. Our findings suggest that despite the remarkable LC vascular robustness, IOP-induced distortions can potentially contribute to glaucomatous neuropathy.
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11
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Marsh JW, Hacker L, Huang S, Boulet MHC, White JRG, Martin LAW, Yeomans MA, Han HH, Diez-Perez I, Musgrave RA, Hammond EM, Sedgwick AC. Fluorogenic platinum(IV) complexes as potential predictors for the design of hypoxia-activated platinum(IV) prodrugs. Dalton Trans 2024; 53:14811-14816. [PMID: 39169877 DOI: 10.1039/d4dt02173h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Hypoxia (low-oxygen) is one of the most common characteristics of solid tumours. Exploiting tumour hypoxia to reductively activate Pt(IV) prodrugs has the potential to deliver toxic Pt(II) selectively and thus overcome the systemic toxicity issues of traditional Pt(II) therapies. However, our current understanding of the behaviour of Pt(IV) prodrugs in hypoxia is limited. Here, we evaluated and compared the aryl carbamate fluorogenic Pt(IV) complexes, CisNap and CarboNap, as well as the previously reported OxaliNap, as potential hypoxia-activated Pt(IV) (HAPt) prodrugs. Low intracellular oxygen concentrations (<0.1%) induced the greatest changes in the respective fluorescence emission channels. However, no correlation between reduction under hypoxic conditions and toxicity was observed, except in the case for CarboNap, which displayed significant hypoxia-dependent toxicity. Other aryl carbamate Pt(IV) derivatives (including non-fluorescent analogues) mirrored these observations, where carboplatin(IV) derivative CarboPhen displayed a hypoxia-selective cytotoxicity similar to that of CarboNap. These findings underscore the need to perform extensive structure activity relationship studies on the cytotoxicity of Pt(IV) complexes under normoxic and hypoxic conditions.
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Affiliation(s)
- Jevon W Marsh
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, OX1 3TA, UK.
| | - Lina Hacker
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Oxford, OX3 7DQ, UK.
| | - Shitong Huang
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, OX1 3TA, UK.
| | - Marie H C Boulet
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, OX1 3TA, UK.
| | - Jhanelle R G White
- Department of Chemistry, King's College London, 7 Trinity Street, London, SE1 1DB, UK
| | - Louise A W Martin
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Oxford, OX3 7DQ, UK.
| | - Megan A Yeomans
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, OX1 3TA, UK.
| | - Hai-Hao Han
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, P. R. China
| | - Ismael Diez-Perez
- Department of Chemistry, King's College London, 7 Trinity Street, London, SE1 1DB, UK
| | - Rebecca A Musgrave
- Department of Chemistry, King's College London, 7 Trinity Street, London, SE1 1DB, UK
| | - Ester M Hammond
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Oxford, OX3 7DQ, UK.
| | - Adam C Sedgwick
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, OX1 3TA, UK.
- Department of Chemistry, King's College London, 7 Trinity Street, London, SE1 1DB, UK
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12
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Szewczyk G, Mokrzyński K, Sarna T. Generation of singlet oxygen inside living cells: correlation between phosphorescence decay lifetime, localization and outcome of photodynamic action. Photochem Photobiol Sci 2024:10.1007/s43630-024-00620-8. [PMID: 39237687 DOI: 10.1007/s43630-024-00620-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 08/14/2024] [Indexed: 09/07/2024]
Abstract
Photodynamic therapy (PDT) is a promising alternative treatment for localized lesions and infections, utilizing reactive oxygen species (ROS) generated by photosensitizers (PS) upon light activation. Singlet oxygen (1O2) is a key ROS responsible for photodynamic damage. However, the effectiveness of PS in biological systems may not correlate with the efficiency of singlet oxygen generation in homogeneous solutions. This study investigated singlet oxygen generation and its decay in various cellular microenvironments using liposome and ARPE-19 cell models. Rose Bengal (RB), methylene blue (MB), and protoporphyrin IX (PpIX) were employed as selected PS. Lifetimes of singlet oxygen generated by the selected photosensitizers in different cellular compartments varied, indicating different quenching rates with singlet oxygen. RB, located near cell membranes, exhibited the highest phototoxicity and lipid/protein peroxidation, followed by PpIX, while MB showed minimal cytotoxicity in similar conditions. Singlet oxygen decay lifetimes provide insights into PS localization and potential phototoxicity, highlighting the importance of the lipid microenvironment in PDT efficacy, providing useful screening method prior to in vivo applications.
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Affiliation(s)
- Grzegorz Szewczyk
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.
| | - Krystian Mokrzyński
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Tadeusz Sarna
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
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13
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Surguta SE, Baranyi M, Svajda L, Cserepes M, Ranđelović I, Tátrai E, Hegedűs B, Tóvári J. Differential effects of hypoxia on motility using various in vitro models of lung adenocarcinoma. Sci Rep 2024; 14:20482. [PMID: 39227650 PMCID: PMC11372077 DOI: 10.1038/s41598-024-70769-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 08/21/2024] [Indexed: 09/05/2024] Open
Abstract
Lung cancer is the leading cause of cancer-related death globally. Metastasis is the most common reason of mortality in which hypoxia is suggested to have a pivotal role. However, the effect of hypoxia on the metastatic potential and migratory activity of cancer cells is largely unexplored and warrants detailed scientific investigations. Accordingly, we analyzed changes on cell proliferation and migratory activity both in single-cell migration and invasion under normoxic and hypoxic conditions in lung adenocarcinoma cell lines. Alterations in crucial genes and proteins associated with cellular response to hypoxia, epithelial-mesenchymal transition, proliferation and apoptosis were also analyzed. Generally, we observed no change in proliferation upon hypoxic conditions and no detectable induction of apoptosis. Interestingly, we observed that single-cell motility was generally reduced while invasion under confluent conditions using scratch assay was enhanced by hypoxia in most of the cell lines. Furthermore, we detected changes in the expression of EMT markers that are consistent with enhanced motility and metastasis-promoting effect of hypoxia. In summary, our study indicated cell line-, time of exposure- and migrational type-dependent effects of hypoxia in cellular proliferation, motility and gene expression. Our results contribute to better understanding and tackling cancer metastasis.
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Affiliation(s)
- Sára Eszter Surguta
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, 1122, Hungary.
- School of Ph.D. Studies, Semmelweis University, Budapest, 1085, Hungary.
| | - Marcell Baranyi
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, 1091, Hungary
| | - Laura Svajda
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, 1122, Hungary
- School of Ph.D. Studies, Semmelweis University, Budapest, 1085, Hungary
| | - Mihály Cserepes
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, 1122, Hungary
| | - Ivan Ranđelović
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, 1122, Hungary
| | - Enikő Tátrai
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, 1122, Hungary
| | - Balázs Hegedűs
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, 1091, Hungary
- Department of Thoracic Surgery, University Medicine Essen - Ruhrlandklinik, University Duisburg-Essen, 45239, Essen, Germany
| | - József Tóvári
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, 1122, Hungary
- School of Ph.D. Studies, Semmelweis University, Budapest, 1085, Hungary
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14
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Mirza Z, Karim S. Unraveling the Mystery of Energy-Sensing Enzymes and Signaling Pathways in Tumorigenesis and Their Potential as Therapeutic Targets for Cancer. Cells 2024; 13:1474. [PMID: 39273044 PMCID: PMC11394487 DOI: 10.3390/cells13171474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 07/27/2024] [Accepted: 07/30/2024] [Indexed: 09/15/2024] Open
Abstract
Cancer research has advanced tremendously with the identification of causative genes, proteins, and signaling pathways. Numerous antitumor drugs have been designed and screened for cancer therapeutics; however, designing target-specific drugs for malignant cells with minimal side effects is challenging. Recently, energy-sensing- and homeostasis-associated molecules and signaling pathways playing a role in proliferation, apoptosis, autophagy, and angiogenesis have received increasing attention. Energy-metabolism-based studies have shown the contribution of energetics to cancer development, where tumor cells show increased glycolytic activity and decreased oxidative phosphorylation (the Warburg effect) in order to obtain the required additional energy for rapid division. The role of energy homeostasis in the survival of normal as well as malignant cells is critical; therefore, fuel intake and expenditure must be balanced within acceptable limits. Thus, energy-sensing enzymes detecting the disruption of glycolysis, AMP, ATP, or GTP levels are promising anticancer therapeutic targets. Here, we review the common energy mediators and energy sensors and their metabolic properties, mechanisms, and associated signaling pathways involved in carcinogenesis, and explore the possibility of identifying drugs for inhibiting the energy metabolism of tumor cells. Furthermore, to corroborate our hypothesis, we performed meta-analysis based on transcriptomic profiling to search for energy-associated biomarkers and canonical pathways.
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Affiliation(s)
- Zeenat Mirza
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21587, Saudi Arabia
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21587, Saudi Arabia
| | - Sajjad Karim
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21587, Saudi Arabia
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21587, Saudi Arabia
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15
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García A, Maldonado G, Hernández G. Translational control of papillomavirus mRNAs in the spotlight. Trends Cell Biol 2024; 34:703-706. [PMID: 39069439 DOI: 10.1016/j.tcb.2024.07.001] [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: 05/01/2024] [Revised: 06/25/2024] [Accepted: 07/01/2024] [Indexed: 07/30/2024]
Abstract
High-risk human papillomaviruses (HPVs) cause most cases of cervical cancer, a disease with an increasing impact worldwide. Recent studies have shown that the synthesis of viral oncoproteins is strongly subject to translational control. Thus, targeting the protein synthesis machinery might open novel avenues to develop innovative therapies aiming to improve patients' survival.
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Affiliation(s)
- Alejandra García
- mRNA and Cancer Laboratory, Unit of Biomedical Research on Cancer, National Institute of Cancer (INCan), Mexico City 14080, Mexico
| | - Giovanna Maldonado
- mRNA and Cancer Laboratory, Unit of Biomedical Research on Cancer, National Institute of Cancer (INCan), Mexico City 14080, Mexico
| | - Greco Hernández
- mRNA and Cancer Laboratory, Unit of Biomedical Research on Cancer, National Institute of Cancer (INCan), Mexico City 14080, Mexico; School of Medicine and Health Sciences, Tecnológico de Monterrey, C.P. 14380-Mexico City, Mexico.
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16
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Schreuder A, Wendel TJ, Dorresteijn CGV, Noordermeer SM. (Single-stranded DNA) gaps in understanding BRCAness. Trends Genet 2024; 40:757-771. [PMID: 38789375 DOI: 10.1016/j.tig.2024.04.013] [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: 02/02/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/26/2024]
Abstract
The tumour-suppressive roles of BRCA1 and 2 have been attributed to three seemingly distinct functions - homologous recombination, replication fork protection, and single-stranded (ss)DNA gap suppression - and their relative importance is under debate. In this review, we examine the origin and resolution of ssDNA gaps and discuss the recent advances in understanding the role of BRCA1/2 in gap suppression. There are ample data showing that gap accumulation in BRCA1/2-deficient cells is linked to genomic instability and chemosensitivity. However, it remains unclear whether there is a causative role and the function of BRCA1/2 in gap suppression cannot unambiguously be dissected from their other functions. We therefore conclude that the three functions of BRCA1 and 2 are closely intertwined and not mutually exclusive.
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Affiliation(s)
- Anne Schreuder
- Leiden University Medical Center, Department of Human Genetics, Leiden, The Netherlands; Oncode Institute, Utrecht, The Netherlands
| | - Tiemen J Wendel
- Leiden University Medical Center, Department of Human Genetics, Leiden, The Netherlands; Oncode Institute, Utrecht, The Netherlands
| | - Carlo G V Dorresteijn
- Leiden University Medical Center, Department of Human Genetics, Leiden, The Netherlands
| | - Sylvie M Noordermeer
- Leiden University Medical Center, Department of Human Genetics, Leiden, The Netherlands; Oncode Institute, Utrecht, The Netherlands.
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17
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Wang Y, Tao RL, Yu DS, Wu KW, Bai Y, Yang DJ, Gu Y, Guo WZ, Zhang SJ, Jin Y, Shi JH. Air-ventilated normothermic mechanical perfusion improves susceptibility to donation after circulatory death and cold preservation-induced cholestatic liver injury through PPAR-γ/UGT1A1 axis. FASEB J 2024; 38:e70014. [PMID: 39183544 DOI: 10.1096/fj.202400773r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 07/21/2024] [Accepted: 08/13/2024] [Indexed: 08/27/2024]
Abstract
End-ischemic normothermic mechanical perfusion (NMP) could provide a curative treatment to reduce cholestatic liver injury from donation after circulatory death (DCD) in donors. However, the underlying mechanism remains elusive. Our previous study demonstrated that air-ventilated NMP could improve functional recovery of DCD in a preclinical NMP rat model. Here, metabolomics analysis revealed that air-ventilated NMP alleviated DCD- and cold preservation-induced cholestatic liver injury, as shown by the elevated release of alanine aminotransferase (ALT), aspartate aminotransferase (AST), bilirubin, and γ-glutamyl transferase (GGT) in the perfusate (p < .05) and the reduction in the levels of bile acid metabolites, including ω-muricholic acid, glycohyodeoxycholic acid, glycocholic acid, and glycochenodeoxycholate (GCDC) in the perfused livers (p < .05). In addition, the expression of the key bile acid metabolism enzyme UDP-glucuronosyltransferase 1A1 (UGT1A1), which is predominantly expressed in hepatocytes, was substantially elevated in the DCD rat liver, followed by air-ventilated NMP (p < .05), and in vitro, this increase was induced by decreased GCDC and hypoxia-reoxygenation in the hepatic cells HepG2 and L02 (p < .05). Knockdown of UGT1A1 in hepatic cells by siRNA aggravated hepatic injury caused by GCDC and hypoxia-reoxygenation, as indicated by the ALT and AST levels in the supernatant. Mechanistically, UGT1A1 is transcriptionally regulated by peroxisome proliferator-activator receptor-γ (PPAR-γ) under hypoxia-physoxia. Taken together, our data revealed that air-ventilated NMP could alleviate DCD- and cold preservation-induced cholestatic liver injury through PPAR-γ/UGT1A1 axis. Based on the results from this study, air-ventilated NMP confers a promising approach for predicting and alleviating cholestatic liver injury through PPAR-γ/UGT1A1 axis.
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Affiliation(s)
- Yong Wang
- Department of Anesthesia Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Ruo-Lin Tao
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Dong-Sheng Yu
- Division of Pharmacology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Kai-Wen Wu
- School of Clinical Medicine, Shenyang Medical College, Shenyang, China
| | - Yang Bai
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Dong-Jing Yang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Yue Gu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Wen-Zhi Guo
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Shui-Jun Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Yang Jin
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - Ji-Hua Shi
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
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18
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Hartl L, Ten Brink MS, Aberson HL, Koster J, Zwijnenburg DA, Duitman J, Bijlsma MF, Spek CA. Hypoxia Abrogates Tumor-Suppressive Activities of C/EBPδ in Pancreatic Cancer. Int J Mol Sci 2024; 25:9449. [PMID: 39273396 PMCID: PMC11394991 DOI: 10.3390/ijms25179449] [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: 07/29/2024] [Revised: 08/20/2024] [Accepted: 08/27/2024] [Indexed: 09/15/2024] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a dismal disease with a low 5-year survival rate of only 13%. Despite intense research efforts, PDAC remains insufficiently understood. In part, this is attributed to opposing effects of key players being unraveled, including the stroma but also molecules that act in a context-dependent manner. One such molecule is the transcription factor C/EBPδ, where we recently showed that C/EBPδ exerts tumor-suppressive effects in PDAC cells in vitro. To better understand the role of C/EBPδ in different contexts and the development of PDAC, we here build on these findings and assess the effect of C/EBPδ in a PDAC model in mice. We establish that the lack of oxygen in vivo-hypoxia-counteracts the tumor-suppressive effects of C/EBPδ, and identify a reciprocal feedback loop between C/EBPδ and HIF-1α. RNA sequencing of C/EBPδ-induced cells under hypoxia also suggests that the growth-limiting effects of C/EBPδ decrease with oxygen tension. Consequently, in vitro proliferation assays reveal that the tumor-suppressive activities of C/EBPδ are abrogated due to hypoxia. This study demonstrates the importance of considering major physiological parameters in preclinical approaches.
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Affiliation(s)
- Leonie Hartl
- Center for Experimental and Molecular Medicine, Laboratory for Experimental Oncology and Radiobiology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, 1081 HV Amsterdam, The Netherlands
| | - Marieke S Ten Brink
- Center for Experimental and Molecular Medicine, Division of Infectious Diseases, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Hella L Aberson
- Center for Experimental and Molecular Medicine, Laboratory for Experimental Oncology and Radiobiology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, 1081 HV Amsterdam, The Netherlands
| | - Jan Koster
- Center for Experimental and Molecular Medicine, Laboratory for Experimental Oncology and Radiobiology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, 1081 HV Amsterdam, The Netherlands
| | - Danny A Zwijnenburg
- Center for Experimental and Molecular Medicine, Laboratory for Experimental Oncology and Radiobiology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, 1081 HV Amsterdam, The Netherlands
| | - JanWillem Duitman
- Department of Pulmonary Medicine, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Amsterdam Infection & Immunity, Inflammatory Diseases, 1105 AZ Amsterdam, The Netherlands
| | - Maarten F Bijlsma
- Center for Experimental and Molecular Medicine, Laboratory for Experimental Oncology and Radiobiology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, 1081 HV Amsterdam, The Netherlands
| | - C Arnold Spek
- Center for Experimental and Molecular Medicine, Laboratory for Experimental Oncology and Radiobiology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, 1081 HV Amsterdam, The Netherlands
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19
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Wakisaka R, Yamaki H, Kono M, Inoue T, Sato R, Komatsuda H, Ohara K, Kosaka A, Ohkuri T, Nagato T, Kishibe K, Nakayama K, Kobayashi H, Kumai T, Takahara M. Hypoxia-Targeted Immunotherapy with PD-1 Blockade in Head and Neck Cancer. Cancers (Basel) 2024; 16:3013. [PMID: 39272872 PMCID: PMC11394489 DOI: 10.3390/cancers16173013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 08/23/2024] [Accepted: 08/28/2024] [Indexed: 09/15/2024] Open
Abstract
Intratumoral hypoxia is associated with tumor progression, aggressiveness, and therapeutic resistance in several cancers. Hypoxia causes cancer cells to experience replication stress, thereby activating DNA damage and repair pathways. MutT homologue-1 (MTH1, also known as NUDT1), a member of the Nudix family, maintains the genomic integrity and viability of tumor cells in the hypoxic tumor microenvironment. Although hypoxia is associated with poor prognosis and can cause therapeutic resistance by regulating the microenvironment, it has not been considered a treatable target in cancer. This study aimed to investigate whether hypoxia-induced MTH1 is a useful target for immunotherapy and whether hypoxic conditions influence the antitumor activity of immune cells. Our results showed that MTH1 expression was elevated under hypoxic conditions in head and neck cancer cell lines. Furthermore, we identified a novel MTH1-targeting epitope peptide that can activate peptide-specific CD4+ helper T cells with cytotoxic activity. The proliferation and cytotoxic activity of T cells were maintained under hypoxic conditions, and PD-1 blockade further augmented the cytotoxicity. These results indicate that MTH1-targeted immunotherapy combined with checkpoint blockade can be an effective strategy for the treatment of hypoxic tumors.
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Affiliation(s)
- Risa Wakisaka
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Hidekiyo Yamaki
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Michihisa Kono
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Takahiro Inoue
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Ryosuke Sato
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Hiroki Komatsuda
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Kenzo Ohara
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
- Department of Innovative Head & Neck Cancer Research and Treatment (IHNCRT), Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Akemi Kosaka
- Department of Pathology, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Takayuki Ohkuri
- Department of Pathology, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Toshihiro Nagato
- Department of Pathology, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Kan Kishibe
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Koh Nakayama
- Department of Pharmacology, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Hiroya Kobayashi
- Department of Pathology, Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Takumi Kumai
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
- Department of Innovative Head & Neck Cancer Research and Treatment (IHNCRT), Asahikawa Medical University, Asahikawa 0788510, Japan
| | - Miki Takahara
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa 0788510, Japan
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20
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Schluter HM, Bariami H, Park HL. Potential Role of Glyphosate, Glyphosate-Based Herbicides, and AMPA in Breast Cancer Development: A Review of Human and Human Cell-Based Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:1087. [PMID: 39200696 PMCID: PMC11354939 DOI: 10.3390/ijerph21081087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 08/07/2024] [Accepted: 08/13/2024] [Indexed: 09/02/2024]
Abstract
The potential connection between exposure to glyphosate and glyphosate-based herbicides (GBHs) and breast cancer risk is a topic of research that is rapidly gaining the public's attention due to the conflicting reports surrounding glyphosate's potential carcinogenicity. In this review, we synthesize the current published biomedical literature works that have explored associations of glyphosate, its metabolite, aminomethylphosphonic acid (AMPA), and GBHs with breast cancer risk in humans and human cell-based models. Using PubMed as our search engine, we identified a total of 14 articles that were included in this review. In the four human studies, urinary glyphosate and/or AMPA were associated with breast cancer risk, endocrine disruption, oxidative stress biomarkers, and changes in DNA methylation patterns. Among most of the 10 human cell-based studies, glyphosate exhibited endocrine disruption, induced altered gene expression, increased DNA damage, and altered cell viability, while GBHs were more cytotoxic than glyphosate alone. In summary, numerous studies have shown glyphosate, AMPA, and GBHs to have potential carcinogenic, cytotoxic, or endocrine-disruptive properties. However, more human studies need to be conducted in order for more definitive and supported conclusions to be made on their potential effects on breast cancer risk.
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Affiliation(s)
| | | | - Hannah Lui Park
- Department of Pathology and Laboratory Medicine, University of California, 839 Health Sciences Road, 218 Sprague Hall, Irvine, CA 92697, USA; (H.M.S.); (H.B.)
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21
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Wang Y, Zhang R, Chen Q, Lei Z, Shi C, Pang Y, Zhang S, He L, Xu L, Xing J, Guo H. PPARγ Agonist Pioglitazone Prevents Hypoxia-induced Cardiac Dysfunction by Reprogramming Glucose Metabolism. Int J Biol Sci 2024; 20:4297-4313. [PMID: 39247816 PMCID: PMC11379067 DOI: 10.7150/ijbs.98387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 07/25/2024] [Indexed: 09/10/2024] Open
Abstract
The heart relies on various defense mechanisms, including metabolic plasticity, to maintain its normal structure and function under high-altitude hypoxia. Pioglitazone, a peroxisome proliferator-activated receptor γ (PPARγ), sensitizes insulin, which in turn regulates blood glucose levels. However, its preventive effects against hypoxia-induced cardiac dysfunction at high altitudes have not been reported. In this study, pioglitazone effectively prevented cardiac dysfunction in hypoxic mice for 4 weeks, independent of its effects on insulin sensitivity. In vitro experiments demonstrated that pioglitazone enhanced the contractility of primary cardiomyocytes and reduced the risk of QT interval prolongation under hypoxic conditions. Additionally, pioglitazone promoted cardiac glucose metabolic reprogramming by increasing glycolytic capacity; enhancing glucose oxidation, electron transfer, and oxidative phosphorylation processes; and reducing mitochondrial reactive ROS production, which ultimately maintained mitochondrial membrane potential and ATP production in cardiomyocytes under hypoxic conditions. Notably, as a PPARγ agonist, pioglitazone promoted hypoxia-inducible factor 1α (HIF-1α) expression in hypoxic myocardium. Moreover, KC7F2, a HIF-1α inhibitor, disrupted the reprogramming of cardiac glucose metabolism and reduced cardiac function in pioglitazone-treated mice under hypoxic conditions. In conclusion, pioglitazone effectively prevented high-altitude hypoxia-induced cardiac dysfunction by reprogramming cardiac glucose metabolism.
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Affiliation(s)
- Yijin Wang
- College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Ru Zhang
- The Key Laboratory of Aerospace Medicine, Ministry of Education, Fourth Military Medical University, 710069, China
| | - Qian Chen
- College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Zhangwen Lei
- School of Medicine, Northwest University, Xi'an, 710069, China
| | - Caiyu Shi
- College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Yifei Pang
- School of Medicine, Northwest University, Xi'an, 710069, China
| | - Shan'an Zhang
- College of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Linjie He
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, 710032, China
| | - Longtao Xu
- College of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Jinliang Xing
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, 710032, China
| | - Haitao Guo
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, 710032, China
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22
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Karatkevich D, Losmanova T, Zens P, Deng H, Dubey C, Zhang T, Casty C, Gao Y, Neppl C, Berezowska S, Wang W, Peng RW, Schmid RA, Dorn P, Marti TM. Chemotherapy increases CDA expression and sensitizes malignant pleural mesothelioma cells to capecitabine treatment. Sci Rep 2024; 14:18206. [PMID: 39107509 PMCID: PMC11303810 DOI: 10.1038/s41598-024-69347-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 08/03/2024] [Indexed: 08/10/2024] Open
Abstract
The combination of cisplatin and pemetrexed remains the gold standard chemotherapy for malignant pleural mesothelioma (MPM), although resistance and poor response pose a significant challenge. Cytidine deaminase (CDA) is a key enzyme in the nucleotide salvage pathway and is involved in the adaptive stress response to chemotherapy. The cytidine analog capecitabine and its metabolite 5'-deoxy-5-fluorocytidine (5'-DFCR) are converted via CDA to 5-fluorouracil, which affects DNA and RNA metabolism. This study investigated a schedule-dependent treatment strategy, proposing that initial chemotherapy induces CDA expression, sensitizing cells to subsequent capecitabine treatment. Basal CDA protein expression was low in different mesothelioma cell lines but increased in the corresponding xenografts. Standard chemotherapy increased CDA protein levels in MPM cells in vitro and in vivo in a schedule-dependent manner. This was associated with epithelial-to-mesenchymal transition and with HIF-1alpha expression at the transcriptional level. In addition, pretreatment with cisplatin and pemetrexed in combination sensitized MPM xenografts to capecitabine. Analysis of a tissue microarray (TMA) consisting of samples from 98 human MPM patients revealed that most human MPM samples had negative CDA expression. While survival curves based on CDA expression in matched samples clearly separated, significance was not reached due to the limited sample size. In non-matched samples, CDA expression before but not after neoadjuvant therapy was significantly associated with worse overall survival. In conclusion, chemotherapy increases CDA expression in xenografts, which is consistent with our in vitro results in MPM and lung cancer. A subset of matched patient samples showed increased CDA expression after therapy, suggesting that a schedule-dependent treatment strategy based on chemotherapy and capecitabine may benefit a selected MPM patient population.
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Affiliation(s)
- Darya Karatkevich
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Graduate School of Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Tereza Losmanova
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Philipp Zens
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Haibin Deng
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland
- 2nd Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
- Hunan Clinical Medical Research Center of Accurate Diagnosis and Treatment for Esophageal Carcinoma, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Christelle Dubey
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Tuo Zhang
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Graduate School of Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Corsin Casty
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Yanyun Gao
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Christina Neppl
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- Institute of Pathology, Heinrich-Heine University and University Hospital of Duesseldorf, Duesseldorf, Germany
| | - Sabina Berezowska
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- Department of Laboratory Medicine and Pathology, Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Wenxiang Wang
- 2nd Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
- Hunan Clinical Medical Research Center of Accurate Diagnosis and Treatment for Esophageal Carcinoma, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Ren-Wang Peng
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland.
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland.
| | - Ralph Alexander Schmid
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland.
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland.
| | - Patrick Dorn
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland.
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland.
| | - Thomas Michael Marti
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 28, 3008, Bern, Switzerland.
- Oncology-Thoracic Malignancies, Department for BioMedical Research, University of Bern, Bern, Switzerland.
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23
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Quenneville J, Feghaly A, Tual M, Thomas K, Major F, Gagnon E. Long-term severe hypoxia adaptation induces non-canonical EMT and a novel Wilms Tumor 1 (WT1) isoform. Cancer Gene Ther 2024; 31:1237-1250. [PMID: 38977895 PMCID: PMC11327107 DOI: 10.1038/s41417-024-00795-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 05/03/2024] [Accepted: 05/30/2024] [Indexed: 07/10/2024]
Abstract
The majority of cancer deaths are caused by solid tumors, where the four most prevalent cancers (breast, lung, colorectal and prostate) account for more than 60% of all cases (1). Tumor cell heterogeneity driven by variable cancer microenvironments, such as hypoxia, is a key determinant of therapeutic outcome. We developed a novel culture protocol, termed the Long-Term Hypoxia (LTHY) time course, to recapitulate the gradual development of severe hypoxia seen in vivo to mimic conditions observed in primary tumors. Cells subjected to LTHY underwent a non-canonical epithelial to mesenchymal transition (EMT) based on miRNA and mRNA signatures as well as displayed EMT-like morphological changes. Concomitant to this, we report production of a novel truncated isoform of WT1 transcription factor (tWt1), a non-canonical EMT driver, with expression driven by a yet undescribed intronic promoter through hypoxia-responsive elements (HREs). We further demonstrated that tWt1 initiates translation from an intron-derived start codon, retains proper subcellular localization and DNA binding. A similar tWt1 is also expressed in LTHY-cultured human cancer cell lines as well as primary cancers and predicts long-term patient survival. Our study not only demonstrates the importance of culture conditions that better mimic those observed in primary cancers, especially with regards to hypoxia, but also identifies a novel isoform of WT1 which correlates with poor long-term survival in ovarian cancer.
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Affiliation(s)
- Jordan Quenneville
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC, Canada.
- Department of Molecular Biology, Université de Montréal, Montréal, QC, Canada.
| | - Albert Feghaly
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC, Canada
| | - Margaux Tual
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC, Canada
- Department of Microbiology, Infectiology, and Immunology, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Kiersten Thomas
- Department of Integrative Oncology, BC Cancer Research Center, Vancouver, BC, Canada
| | - François Major
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC, Canada
- Department of Computer Science and Operations Research, Faculty of Arts and Sciences, Université de Montréal, Montréal, QC, Canada
| | - Etienne Gagnon
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC, Canada.
- Department of Microbiology, Infectiology, and Immunology, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada.
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24
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Seo DH, Huh YH, Cheong HK, Kim EH, Lim JS, Lee MJ, Lee D, Ryu KS. Mechanism of Methylene Blue Inducing the Disulfide Bond Formation of Tubulin-Associated Unit Proteins. JACS AU 2024; 4:2451-2455. [PMID: 39055157 PMCID: PMC11267549 DOI: 10.1021/jacsau.4c00262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 07/27/2024]
Abstract
Methylene blue (MB) has recently completed a Phase-3 clinical trial as leuco-methylthioninium (LMT) bis(hydromethanesulfonate) for treating Alzheimer's disease. Herein, we investigated the mechanism underlying the MB inhibition of tubulin-associated unit (tau) aggregation by focusing on tau monomers. We found that MB causes disulfide bond formation, resulting in strong nuclear magnetic resonance chemical shift perturbations in a large area of tau proteins. The oxidized form of MB, namely methylthioninium (MT+), specifically catalyzed the oxidation of cysteine residues in tau proteins to form disulfide bonds directly using O2. This process is independent of the MT+-to-LMT redox cycle. Moreover, MT+ preferentially oxidized C291 and C322 in the lysine-rich R2 and R3 domains. Under in vivo brain physoxia conditions, LMT may convert to MT+, possibly interfering with tau fibrillation via disulfide bond formation.
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Affiliation(s)
- Dong-Hyun Seo
- Ochang
center, Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si, Chungcheongbuk-Do 28119, South Korea
- KBSI
School of Bioscience, University of Science
and Technology, 162 Yeongudanji-Ro,
Ochang-Eup, Cheongju-Si, Chungcheongbuk-Do 28119, South Korea
| | - Yang Hoon Huh
- Ochang
center, Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si, Chungcheongbuk-Do 28119, South Korea
| | - Hae-Kap Cheong
- Ochang
center, Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si, Chungcheongbuk-Do 28119, South Korea
| | - Eun-Hee Kim
- Ochang
center, Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si, Chungcheongbuk-Do 28119, South Korea
| | - Jong-Soo Lim
- Novorex
Inc., 240 Pangyoyeok-Ro, Seongnam-Si, Gyeonggi-Do 13493, South Korea
| | - Min Jung Lee
- Dong-A
ST Research Institute, Yongin-Si, Gyeonggi-Do 17073, South Korea
| | - Donghan Lee
- Ochang
center, Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si, Chungcheongbuk-Do 28119, South Korea
| | - Kyoung-Seok Ryu
- Ochang
center, Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si, Chungcheongbuk-Do 28119, South Korea
- KBSI
School of Bioscience, University of Science
and Technology, 162 Yeongudanji-Ro,
Ochang-Eup, Cheongju-Si, Chungcheongbuk-Do 28119, South Korea
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25
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Kawahara D. Improved dose compensation model owing to short irradiation interruption time for hypoxic tumor using a microdosimetric kinetic model. Rep Pract Oncol Radiother 2024; 29:271-279. [PMID: 39144261 PMCID: PMC11321781 DOI: 10.5603/rpor.101098] [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: 08/06/2023] [Accepted: 02/29/2024] [Indexed: 08/16/2024] Open
Abstract
Background The objective was to enhance the biological compensation factor related to irradiation interruption in a short time (short irradiation interruption) in hypoxic tumors using a refined microdosimetric kinetic model (MKM) for photon radiation therapy. Materials and methods The biological dose differences were calculated for CHO-K1 cells exposed to a photon beam, considering interruptions of (τ) of 0-120 min and pO2 at oxygen levels of 0.075-160 mm Hg. The interrupted dose fraction (IDF) was defined as the percentage ratio of the dose delivered before short irradiation interruption to the total dose, which ranged from 10-90%. The compensated dose was calculated based on an IDF of 10-90% for a dose of 2-8 Gy and oxygen levels of 0.075-160 mm Hg. Results The Δ with and without short irradiation interruption was more pronounced with a higher dose and increased pO2. It exceeded 3% between IDF of 50% and either 10% or 90% and occurred more than τ = 50 min at 0.075 mm Hg, τ = 20 min at 3 mm Hg, τ = 20 min at 8 mm Hg, τ = 20 min at 15 mm Hg, τ = 20 min at 38 mm Hg, and τ = 20 min at 160 mm Hg. The dose compensation factor was greater at higher IDF rates. Conclusion The biological dose decreased with longer interruption times and higher oxygen concentrations. The improved model can compensate for the biological doses at various oxygen concentrations. Advances in knowledge The current study improved the dose compensation method for the decrease in the biological effect owing to short irradiation interruption by considering the oxygen concentration.
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Affiliation(s)
- Daisuke Kawahara
- Department of Radiation Oncology, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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26
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Srinivasarao DA, Shah S, Famta P, Vambhurkar G, Jain N, Pindiprolu SKSS, Sharma A, Kumar R, Padhy HP, Kumari M, Madan J, Srivastava S. Unravelling the role of tumor microenvironment responsive nanobiomaterials in spatiotemporal controlled drug delivery for lung cancer therapy. Drug Deliv Transl Res 2024:10.1007/s13346-024-01673-z. [PMID: 39037533 DOI: 10.1007/s13346-024-01673-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2024] [Indexed: 07/23/2024]
Abstract
Design and development of efficient drug delivery technologies that impart site-specificity is the need of the hour for the effective treatment of lung cancer. The emergence of materials science and nanotechnology partially helped drug delivery scientists to achieve this objective. Various stimuli-responsive materials that undergo degradation at the pathological tumor microenvironment (TME) have been developed and explored for drug delivery applications using nanotechnological approaches. Nanoparticles (NPs), owing to their small size and high surface area to volume ratio, demonstrated enhanced cellular internalization, permeation, and retention at the tumor site. Such passive accumulation of stimuli-responsive materials helped to achieve spatiotemporally controlled and targeted drug delivery within the tumors. In this review, we discussed various stimuli-physical (interstitial pressure, temperature, and stiffness), chemical (pH, hypoxia, oxidative stress, and redox state), and biological (receptor expression, efflux transporters, immune cells, and their receptors or ligands)-that are characteristic to the TME. We mentioned an array of biomaterials-based nanoparticulate delivery systems that respond to these stimuli and control drug release at the TME. Further, we discussed nanoparticle-based combinatorial drug delivery strategies. Finally, we presented our perspectives on challenges related to scale-up, clinical translation, and regulatory approvals.
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Affiliation(s)
- Dadi A Srinivasarao
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India.
| | - Saurabh Shah
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Paras Famta
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Ganesh Vambhurkar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Naitik Jain
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Sai Kiran S S Pindiprolu
- Aditya Pharmacy College, Surampalem, 533 437, Andhra Pradesh, India
- Jawaharlal Nehru Technological University, Kakinada, 533 003, Andhra Pradesh, India
| | - Anamika Sharma
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), 500037, Telangana, Hyderabad, India
| | - Rahul Kumar
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), 500037, Telangana, Hyderabad, India
| | - Hara Prasad Padhy
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), 500037, Telangana, Hyderabad, India
| | - Meenu Kumari
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), 500037, Telangana, Hyderabad, India
| | - Jitender Madan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Saurabh Srivastava
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India.
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27
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Grammer C, Komorowska JA, Swann JB. Vhl safeguards thymic epithelial cell identity and thymopoietic capacity by constraining Hif1a activity during development. iScience 2024; 27:110258. [PMID: 39040069 PMCID: PMC11261450 DOI: 10.1016/j.isci.2024.110258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 03/15/2024] [Accepted: 06/10/2024] [Indexed: 07/24/2024] Open
Abstract
The thymus is a physiologically hypoxic organ and fulfills its role of generating T cells under low-oxygen conditions. We have therefore investigated how thymic epithelial cells (TECs) cope with physiological hypoxia by focusing on the role of the Hif1a-Vhl axis. In most cell types, the oxygen-labile transcriptional regulator Hif1a is a central player in co-ordinating responses to low oxygen: under normoxic conditions Hif1a is rapidly degraded in a Vhl-guided manner; however, under hypoxic conditions Hif1a is stabilized and can execute its transcriptional functions. Unexpectedly, we find that, although TECs reside in a hypoxic microenvironment, they express little Hif1a protein and do not require Hif1a for their development or function. Instead, we find that Vhl function in TECs is vital to constrain Hif1a activity, as loss of Vhl results in dramatic defects in TEC differentiation and thymopoiesis, which can be rescued by Hif1a co-depletion.
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Affiliation(s)
- Christiane Grammer
- Department of Developmental Immunology, Max Planck-Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Julia A. Komorowska
- Department of Developmental Immunology, Max Planck-Institute of Immunobiology and Epigenetics, Freiburg, Germany
- Albert Ludwig University, Faculty of Biology, Freiburg, Germany
| | - Jeremy B. Swann
- Department of Developmental Immunology, Max Planck-Institute of Immunobiology and Epigenetics, Freiburg, Germany
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28
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Fu Q, Zhang S, Shen S, Gu Z, Chen J, Song D, Sun P, Wang C, Guo Z, Xiao Y, Gao YQ, Guo Z, Liu Z. Radiotherapy-triggered reduction of platinum-based chemotherapeutic prodrugs in tumours. Nat Biomed Eng 2024:10.1038/s41551-024-01239-x. [PMID: 39025943 DOI: 10.1038/s41551-024-01239-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/27/2024] [Indexed: 07/20/2024]
Abstract
Pt(II) drugs are a widely used chemotherapeutic, yet their side effects can be severe. Here we show that the radiation-induced reduction of Pt(IV) complexes to cytotoxic Pt(II) drugs is rapid, efficient and applicable in water, that it is mediated by hydrated electrons from water radiolysis and that the X-ray-induced release of Pt(II) drugs from an oxaliplatin prodrug in tumours inhibits their growth, as we show with nearly complete tumour regression in mice with subcutaneous human tumour xenografts. The combination of low-dose radiotherapy with a Pt(IV)-based antibody-trastuzumab conjugate led to the tumour-selective release of the chemotherapeutic in mice and to substantial therapeutic benefits. The radiation-induced local reduction of platinum prodrugs in the reductive tumour microenvironment may expand the utility of radiotherapy.
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Affiliation(s)
- Qunfeng Fu
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Shuren Zhang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing, China
| | - Siyong Shen
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Zhi Gu
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Junyi Chen
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Dongfan Song
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing, China
| | - Pengwei Sun
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Chunhong Wang
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Zhibin Guo
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Yunlong Xiao
- Beijing National Laboratory of Molecular Sciences, Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Yi Qin Gao
- Beijing National Laboratory of Molecular Sciences, Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Zijian Guo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing, China.
| | - Zhibo Liu
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China.
- Peking University-Tsinghua University Center for Life Sciences, Peking University, Beijing, China.
- Changping Laboratory, Beijing, China.
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), National Medical Products Administration Key Laboratory for Research and Evaluation of Radiopharmaceuticals, Department of Nuclear Medicine, Peking University Cancer Hospital and Institute, Beijing, China.
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Cagnin S, Pontisso P, Martini A. SerpinB3: A Multifaceted Player in Health and Disease-Review and Future Perspectives. Cancers (Basel) 2024; 16:2579. [PMID: 39061218 PMCID: PMC11274807 DOI: 10.3390/cancers16142579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/10/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
SerpinB3, a member of the serine-protease inhibitor family, has emerged as a crucial player in various physiological and pathological processes. Initially identified as an oncogenic factor in squamous cell carcinomas, SerpinB3's intricate involvement extends from fibrosis progression and cancer to cell protection in acute oxidative stress conditions. This review explores the multifaceted roles of SerpinB3, focusing on its implications in fibrosis, metabolic syndrome, carcinogenesis and immune system impairment. Furthermore, its involvement in tissue protection from oxidative stress and wound healing underscores its potential as diagnostic and therapeutic tool. Recent studies have described the therapeutic potential of targeting SerpinB3 through its upstream regulators, offering novel strategies for cancer treatment development. Overall, this review underscores the importance of further research to fully elucidate the mechanisms of action of SerpinB3 and to exploit its therapeutic potential across various medical conditions.
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Affiliation(s)
| | - Patrizia Pontisso
- Department of Medicine, University of Padova, 35123 Padova, Italy; (S.C.); (A.M.)
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30
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Kehr NS. The Effect of Co-Delivery of Oxygen and Anticancer Drugs on the Viability of Healthy and Cancer Cells under Normoxic and Hypoxic Conditions. Macromol Biosci 2024:e2400181. [PMID: 38980997 DOI: 10.1002/mabi.202400181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 06/04/2024] [Indexed: 07/11/2024]
Abstract
Hypoxia, cancer, tissue damage, and acidic pH conditions are interrelated, as chronic hypoxic conditions enhance the malignant phenotype of cancer cells, causing more aggressive tissue destruction, and hypoxic cells rely on anaerobic glycolysis, leading to the accumulation of lactic acid. Therefore, the administration of oxygen is necessary to support the functions of healthy cells until the formation of new blood vessels and to increase the oxygen supply to cancerous tissues to improve the efficacy of antitumor drugs on tumor cells. In addition to O2 supply, pH-dependent delivery of anticancer drugs is desired to target cancer cells and reduce drug side effects on healthy cells. However, the simultaneous delivery of O2 and pH-dependent anticancer drugs via nanomaterials and their effects on the viability of normal and cancer cells under hypoxic conditions have not been studied in sufficient numbers. This study describes the synthesis of a pH-responsive nanomaterial containing oxygen and anticancer drugs that exhibits sustained O2 release over a 14 d period under hypoxic conditions and pH-dependent sustained release of anticancer drugs over 30 d. The simultaneous administration of O2 and anticancer drugs results in higher cell survival of normal cells than that of cancer cells under hypoxic and normoxic conditions.
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Affiliation(s)
- Nermin Seda Kehr
- Department of Chemistry, Izmir Institute of Technology, Urla/Izmir, 35430, Turkiye
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31
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Chen X, Zhou H, Lv J. The Importance of Hypoxia-Related to Hemoglobin Concentration in Breast Cancer. Cell Biochem Biophys 2024:10.1007/s12013-024-01386-7. [PMID: 38955926 DOI: 10.1007/s12013-024-01386-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2024] [Indexed: 07/04/2024]
Abstract
The importance of hemoglobin (Hgb) as a novel prognostic biomarker in predicting clinical features of cancers has been the subject of intense interest. Anemia is common in various types of cancer including breast cancer (BC) and is considered to be attributed to tumoral hypoxia. Cancer microenvironments are hypoxic compared with normal tissues, and this hypoxia is associated with Hgb concentration. Recent preclinical documents propose a direct or indirect correlation of intratumoral hypoxia, specifically along with acidity, with Hgb concentration and anemia. Analysis of the prognostic value of Hgb in BC patients has demonstrated increased hypoxia in the intratumoral environment. A great number of studies demonstrated that lower concentrations of Hgb before or during common cancer treatments, such as radiation and chemotherapy, is an essential risk factor for poor prognostic and survival, as well as low quality of life in BC patients. This data suggests a potential correlation between anemia and hypoxia in BC. While low Hgb levels are detrimental to BC invasion and survival, identification of a distinct and exact threshold for low Hgb concentration is challenging and inaccurate. The optimal thresholds for Hgb and partial pressure of oxygen (pO2) vary based on different factors including age, gender, therapeutic approaches, and tumor types. While necessitating further investigations, understanding the correlation of Hgb levels with tumoral hypoxia and oxygenation could improve exploring strategies to overcome radio-chemotherapy related anemia in BC patients. This review highlights the collective association of Hgb concentration and hypoxia condition in BC progression.
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Affiliation(s)
- Xinyi Chen
- Department of Hematology and Oncology, Yongkang First People's Hospital Affiliated to Hangzhou Medical College, Yongkang, 321300, China.
| | - Hongmei Zhou
- Department of Hematology and Oncology, Yongkang First People's Hospital Affiliated to Hangzhou Medical College, Yongkang, 321300, China
| | - Jiaoli Lv
- Department of Hematology and Oncology, Yongkang First People's Hospital Affiliated to Hangzhou Medical College, Yongkang, 321300, China
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32
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Werschler N, Quintard C, Nguyen S, Penninger J. Engineering next generation vascularized organoids. Atherosclerosis 2024:118529. [PMID: 39304390 DOI: 10.1016/j.atherosclerosis.2024.118529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/31/2024] [Accepted: 06/21/2024] [Indexed: 09/22/2024]
Abstract
Organoids are self-organizing 3D cell culture models that are valuable for studying the mechanisms underlying both development and disease in multiple species, particularly, in humans. These 3D engineered tissues can mimic the structure and function of human organs in vitro. Methods to generate organoids have substantially improved to better resemble, in various ways, their in vivo counterpart. One of the major limitations in current organoid models is the lack of a functional vascular compartment. Here we discuss methodological approaches to generating perfusable blood vessel networks in organoid systems. Inclusion of perfused vascular compartments markedly enhances the physiological relevance of organoid systems and is a critical step in the establishment of next generation, higher-complexity in vitro systems for use in developmental, clinical, and drug-development settings.
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Affiliation(s)
- Nicolas Werschler
- University of British Columbia, Life Sciences Institute, Vancouver, Canada; University of British Columbia, School of Biomedical Engineering, Vancouver, Canada.
| | - Clement Quintard
- University of British Columbia, Life Sciences Institute, Vancouver, Canada; University of British Columbia, Medical Genetics, Vancouver, Canada
| | - Stephanie Nguyen
- University of British Columbia, School of Biomedical Engineering, Vancouver, Canada
| | - Josef Penninger
- University of British Columbia, Life Sciences Institute, Vancouver, Canada; University of British Columbia, School of Biomedical Engineering, Vancouver, Canada; University of British Columbia, Medical Genetics, Vancouver, Canada; Helmholtz Centre for Infection Research, Germany; Eric Kandel Institute, Department of Laboratory Medicine, Medical University of Vienna, Austria; IMBA Institute of Molecular Biotechnology, Vienna, Austria
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33
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Li X, González-Maroto C, Tavassoli M. Crosstalk between CAFs and tumour cells in head and neck cancer. Cell Death Discov 2024; 10:303. [PMID: 38926351 PMCID: PMC11208506 DOI: 10.1038/s41420-024-02053-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/28/2024] Open
Abstract
Head and neck squamous cell carcinomas (HNSCCs) are amongst the most aggressive, complex, and heterogeneous malignancies. The standard of care treatments for HNC patients include surgery, radiotherapy, chemotherapy, or their combination. However, around 50% do not benefit while suffering severe toxic side effects, costing the individuals and society. Decades have been spent to improve HNSCC treatment outcomes with only limited success. Much of the research in HNSCC treatment has focused on understanding the genetics of the HNSCC malignant cells, but it has become clear that tumour microenvironment (TME) plays an important role in the progression as well as treatment response in HNSCC. Understanding the crosstalk between cancer cells and TME is crucial for inhibiting progression and treatment resistance. Cancer-associated fibroblasts (CAFs), the predominant component of stroma in HNSCC, serve as the primary source of extra-cellular matrix (ECM) and various pro-tumoral composites in TME. The activation of CAFs in HNSCC is primarily driven by cancer cell-secreted molecules, which in turn induce phenotypic changes, elevated secretive status, and altered ECM production profile. Concurrently, CAFs play a pivotal role in modulating the cell cycle, stemness, epithelial-mesenchymal transition (EMT), and resistance to targeted and chemoradiotherapy in HNSCC cells. This modulation occurs through interactions with secreted molecules or direct contact with the ECM or CAF. Co-culture and 3D models of tumour cells and other TME cell types allows to mimic the HNSCC tumour milieu and enable modulating tumour hypoxia and reprograming cancer stem cells (CSC). This review aims to provide an update on the development of HNSCC tumour models comprising CAFs to obtain better understanding of the interaction between CAFs and tumour cells, and for providing preclinical testing platforms of current and combination with emerging therapeutics.
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Affiliation(s)
- Xinyang Li
- Head and Neck Oncology Group, Centre for Host Microbiome Interaction, King's College London, Hodgkin Building, London, SE1 1UL, UK
| | - Celia González-Maroto
- Head and Neck Oncology Group, Centre for Host Microbiome Interaction, King's College London, Hodgkin Building, London, SE1 1UL, UK
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Mahvash Tavassoli
- Head and Neck Oncology Group, Centre for Host Microbiome Interaction, King's College London, Hodgkin Building, London, SE1 1UL, UK.
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34
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Mehta V, Vilikkathala Sudhakaran S, Nellore V, Madduri S, Rath SN. 3D stem-like spheroids-on-a-chip for personalized combinatorial drug testing in oral cancer. J Nanobiotechnology 2024; 22:344. [PMID: 38890730 PMCID: PMC11186147 DOI: 10.1186/s12951-024-02625-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 06/06/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Functional drug testing (FDT) with patient-derived tumor cells in microfluidic devices is gaining popularity. However, the majority of previously reported microfluidic devices for FDT were limited by at least one of these factors: lengthy fabrication procedures, absence of tumor progenitor cells, lack of clinical correlation, and mono-drug therapy testing. Furthermore, personalized microfluidic models based on spheroids derived from oral cancer patients remain to be thoroughly validated. Overcoming the limitations, we develop 3D printed mold-based, dynamic, and personalized oral stem-like spheroids-on-a-chip, featuring unique serpentine loops and flat-bottom microwells arrangement. RESULTS This unique arrangement enables the screening of seven combinations of three drugs on chemoresistive cancer stem-like cells. Oral cancer patients-derived stem-like spheroids (CD 44+) remains highly viable (> 90%) for 5 days. Treatment with a well-known oral cancer chemotherapy regimen (paclitaxel, 5 fluorouracil, and cisplatin) at clinically relevant dosages results in heterogeneous drug responses in spheroids. These spheroids are derived from three oral cancer patients, each diagnosed with either well-differentiated or moderately-differentiated squamous cell carcinoma. Oral spheroids exhibit dissimilar morphology, size, and oral tumor-relevant oxygen levels (< 5% O2). These features correlate with the drug responses and clinical diagnosis from each patient's histopathological report. CONCLUSIONS Overall, we demonstrate the influence of tumor differentiation status on treatment responses, which has been rarely carried out in the previous reports. To the best of our knowledge, this is the first report demonstrating extensive work on development of microfluidic based oral cancer spheroid model for personalized combinatorial drug screening. Furthermore, the obtained clinical correlation of drug screening data represents a significant advancement over previously reported personalized spheroid-based microfluidic devices. Finally, the maintenance of patient-derived spheroids with high viability under oral cancer relevant oxygen levels of less than 5% O2 is a more realistic representation of solid tumor microenvironment in our developed device.
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Affiliation(s)
- Viraj Mehta
- Regenerative Medicine and Stem Cell Laboratory (RMS), Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Kandi, 502285, Telangana, India
| | - Sukanya Vilikkathala Sudhakaran
- Regenerative Medicine and Stem Cell Laboratory (RMS), Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Kandi, 502285, Telangana, India
| | - Vijaykumar Nellore
- Regenerative Medicine and Stem Cell Laboratory (RMS), Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Kandi, 502285, Telangana, India
| | - Srinivas Madduri
- Department of Surgery, University of Geneva, 1205, Geneva, Switzerland
| | - Subha Narayan Rath
- Regenerative Medicine and Stem Cell Laboratory (RMS), Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Kandi, 502285, Telangana, India.
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35
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Kumar P, Lacroix M, Dupré P, Arslan J, Fenou L, Orsetti B, Le Cam L, Racoceanu D, Radulescu O. Deciphering oxygen distribution and hypoxia profiles in the tumor microenvironment: a data-driven mechanistic modeling approach. Phys Med Biol 2024; 69:125023. [PMID: 38815610 DOI: 10.1088/1361-6560/ad524a] [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: 03/08/2024] [Accepted: 05/30/2024] [Indexed: 06/01/2024]
Abstract
Objective. The distribution of hypoxia within tissues plays a critical role in tumor diagnosis and prognosis. Recognizing the significance of tumor oxygenation and hypoxia gradients, we introduce mathematical frameworks grounded in mechanistic modeling approaches for their quantitative assessment within a tumor microenvironment. By utilizing known blood vasculature, we aim to predict hypoxia levels across different tumor types.Approach. Our approach offers a computational method to measure and predict hypoxia using known blood vasculature. By formulating a reaction-diffusion model for oxygen distribution, we derive the corresponding hypoxia profile.Main results. The framework successfully replicates observed inter- and intra-tumor heterogeneity in experimentally obtained hypoxia profiles across various tumor types (breast, ovarian, pancreatic). Additionally, we propose a data-driven method to deduce partial differential equation models with spatially dependent parameters, which allows us to comprehend the variability of hypoxia profiles within tissues. The versatility of our framework lies in capturing diverse and dynamic behaviors of tumor oxygenation, as well as categorizing states of vascularization based on the dynamics of oxygen molecules, as identified by the model parameters.Significance. The proposed data-informed mechanistic method quantitatively assesses hypoxia in the tumor microenvironment by integrating diverse histopathological data and making predictions across different types of data. The framework provides valuable insights from both modeling and biological perspectives, advancing our comprehension of spatio-temporal dynamics of tumor oxygenation.
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Affiliation(s)
- P Kumar
- Laboratory of Pathogens and Host Immunity, University of Montpellier, CNRS, INSERM, Montpellier, France
- Sorbonne Université, CNRS, INSERM, AP-HP, Inria, Paris Brain Institute (ICM), Paris, France
| | - M Lacroix
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, University of Montpellier, Institut régional du Cancer de Montpellier (ICM), Montpellier, France
- Equipe labélisée Ligue Contre le Cancer, Paris, France
| | - P Dupré
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, University of Montpellier, Institut régional du Cancer de Montpellier (ICM), Montpellier, France
- Equipe labélisée Ligue Contre le Cancer, Paris, France
| | - J Arslan
- Sorbonne Université, CNRS, INSERM, AP-HP, Inria, Paris Brain Institute (ICM), Paris, France
- Centre for Eye Research Australia, University of Melbourne, Royal Victorian Eye & Ear Hospital, East Melbourne, Australia
| | - L Fenou
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, University of Montpellier, Institut régional du Cancer de Montpellier (ICM), Montpellier, France
| | - B Orsetti
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, University of Montpellier, Institut régional du Cancer de Montpellier (ICM), Montpellier, France
| | - L Le Cam
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, University of Montpellier, Institut régional du Cancer de Montpellier (ICM), Montpellier, France
- Equipe labélisée Ligue Contre le Cancer, Paris, France
| | - D Racoceanu
- Sorbonne Université, CNRS, INSERM, AP-HP, Inria, Paris Brain Institute (ICM), Paris, France
| | - O Radulescu
- Laboratory of Pathogens and Host Immunity, University of Montpellier, CNRS, INSERM, Montpellier, France
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Dong J, Wang C, Zhang T, Yu X, Peng H, Xiao Z, Wang Z, Wen B. Establishment and Application of Novel Hypoxia-driven Dual-reporter Model to Investigate Hypoxic Impact on Radiation Sensitivity in Human Nasopharyngeal Carcinoma Xenografts. J Cancer 2024; 15:4345-4359. [PMID: 38947402 PMCID: PMC11212076 DOI: 10.7150/jca.96378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 05/20/2024] [Indexed: 07/02/2024] Open
Abstract
Background: Tumor hypoxia has been frequently detected in nasopharyngeal carcinoma (NPC) and is intently associated with therapeutic resistance. The aim of the study is to establish a clonogenically stable hypoxia-inducible dual reporter model and apply it to investigate the effect of tumor hypoxia on DNA double strand break (DSB) and synergistic effect of irradiation in combination with chemotherapy or targeted therapy. Methods: The plasmid vector consisting of hypoxia response elements to regulate HSV1-TK and GFP genes, was constructed and stably transfected into human NPC cells. The expected clone was identified and validated by in vivo and in vitro assay. DSB repair was measured by γH2AX foci formation. Tumor growth delay assay and spatial biodistribution of various biomarkers was designed to investigate the anti-tumor effect. Results: The system has the propensity of high expression of reporter genes under hypoxia and low to no expression under normoxia. Intratumoral biodistributions of GFP and classic hypoxic biomarkers were identical in poor-perfused region. Upon equilibration with 10% O2, the xenografts showed higher expression of hypoxic biomarkers. Cisplatin radiosensitized SUNE-1/HRE cells under hypoxia by suppressing DSB repair while the addition of PI3K/mTOR inhibitor further enhanced the anti-tumoral therapeutic efficacy. Combination of IR, DDP and NVP-BEZ235 exhibited most effective anti-tumor response in vivo. These observations underline the importance of dual reporter model for imaging tumor hypoxia in therapeutic study. Conclusions: Our preclinical model enables the investigation of heterogeneous tumor hypoxic regions in xenograft tissues and explores the treatment efficacy of combinations of various therapeutic approaches to overcome hypoxia.
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Affiliation(s)
- Jun Dong
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, 510080, China
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Guangdong Province, 518048, China
| | - Chengtao Wang
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, 510080, China
| | - Tian Zhang
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, 510080, China
- Department of Radiation Oncology, The Fifth Affiliated Hospital, Sun Yat-sen University. Zhuhai, Guangdong, 519000, China
| | - Xiaobi Yu
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, 510080, China
| | - Haihua Peng
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, 510080, China
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, 510075, China
| | - Zhenhua Xiao
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, 510080, China
| | - Zhenyu Wang
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, 510080, China
| | - Bixiu Wen
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, 510080, China
- Department of Medical Physics and Radiation Oncology, Memorial Sloan-Kettering Cancer Center, NY, New York City, 10021, USA
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Laird M, Ku JC, Raiten J, Sriram S, Moore M, Li Y. Mitochondrial metabolism regulation and epigenetics in hypoxia. Front Physiol 2024; 15:1393232. [PMID: 38915781 PMCID: PMC11194441 DOI: 10.3389/fphys.2024.1393232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/13/2024] [Indexed: 06/26/2024] Open
Abstract
The complex and dynamic interaction between cellular energy control and gene expression modulation is shown by the intersection between mitochondrial metabolism and epigenetics in hypoxic environments. Poor oxygen delivery to tissues, or hypoxia, is a basic physiological stressor that sets off a series of reactions in cells to adapt and endure oxygen-starved environments. Often called the "powerhouse of the cell," mitochondria are essential to cellular metabolism, especially regarding producing energy through oxidative phosphorylation. The cellular response to hypoxia entails a change in mitochondrial metabolism to improve survival, including epigenetic modifications that control gene expression without altering the underlying genome. By altering the expression of genes involved in angiogenesis, cell survival, and metabolism, these epigenetic modifications help cells adapt to hypoxia. The sophisticated interplay between mitochondrial metabolism and epigenetics in hypoxia is highlighted by several important points, which have been summarized in the current article. Deciphering the relationship between mitochondrial metabolism and epigenetics during hypoxia is essential to understanding the molecular processes that regulate cellular adaptation to reduced oxygen concentrations.
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Affiliation(s)
- Madison Laird
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Jennifer C. Ku
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Jacob Raiten
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Sashwat Sriram
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Megan Moore
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Yong Li
- Department of Orthopaedic Surgery, Biomedical Engineering, Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
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38
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Brown BA, Myers PJ, Adair SJ, Pitarresi JR, Sah-Teli SK, Campbell LA, Hart WS, Barbeau MC, Leong K, Seyler N, Kane W, Lee KE, Stelow E, Jones M, Simon MC, Koivunen P, Bauer TW, Stanger BZ, Lazzara MJ. A Histone Methylation-MAPK Signaling Axis Drives Durable Epithelial-Mesenchymal Transition in Hypoxic Pancreatic Cancer. Cancer Res 2024; 84:1764-1780. [PMID: 38471099 DOI: 10.1158/0008-5472.can-22-2945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/10/2023] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
The tumor microenvironment in pancreatic ductal adenocarcinoma (PDAC) plays a key role in tumor progression and response to therapy. The dense PDAC stroma causes hypovascularity, which leads to hypoxia. Here, we showed that hypoxia drives long-lasting epithelial-mesenchymal transition (EMT) in PDAC primarily through a positive-feedback histone methylation-MAPK signaling axis. Transformed cells preferentially underwent EMT in hypoxic tumor regions in multiple model systems. Hypoxia drove a cell autonomous EMT in PDAC cells, which, unlike EMT in response to growth factors, could last for weeks. Furthermore, hypoxia reduced histone demethylase KDM2A activity, suppressed PP2 family phosphatase expression, and activated MAPKs to post-translationally stabilize histone methyltransferase NSD2, leading to an H3K36me2-dependent EMT in which hypoxia-inducible factors played only a supporting role. Hypoxia-driven EMT could be antagonized in vivo by combinations of MAPK inhibitors. Collectively, these results suggest that hypoxia promotes durable EMT in PDAC by inducing a histone methylation-MAPK axis that can be effectively targeted with multidrug therapies, providing a potential strategy for overcoming chemoresistance. SIGNIFICANCE Integrated regulation of histone methylation and MAPK signaling by the low-oxygen environment of pancreatic cancer drives long-lasting EMT that promotes chemoresistance and shortens patient survival and that can be pharmacologically inhibited. See related commentary by Wirth and Schneider, p. 1739.
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Affiliation(s)
- Brooke A Brown
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia
| | - Paul J Myers
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia
| | - Sara J Adair
- Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Jason R Pitarresi
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Shiv K Sah-Teli
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Logan A Campbell
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - William S Hart
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia
| | | | - Kelsey Leong
- Engineering Science, University of Virginia, Charlottesville, Virginia
| | - Nicholas Seyler
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia
| | - William Kane
- Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Kyoung Eun Lee
- Department of Pharmacology, University of Michigan, Ann Arbor, Michigan
| | - Edward Stelow
- Department of Pathology, University of Virginia, Charlottesville, Virginia
| | - Marieke Jones
- Claude Moore Health Sciences Library, University of Virginia, Charlottesville, Virginia
| | - M Celeste Simon
- Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, Pennsylvania
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Peppi Koivunen
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Todd W Bauer
- Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Ben Z Stanger
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Matthew J Lazzara
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
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Hill RM, Li C, Hughes JR, Rocha S, Grundy GJ, Parsons JL. Autophagy is the main driver of radioresistance of HNSCC cells in mild hypoxia. J Cell Mol Med 2024; 28:e18482. [PMID: 38899556 PMCID: PMC11187736 DOI: 10.1111/jcmm.18482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 05/20/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Hypoxia poses a significant challenge to the effectiveness of radiotherapy in head and neck squamous cell carcinoma (HNSCC) patients, and it is imperative to discover novel approaches to overcome this. In this study, we investigated the underlying mechanisms contributing to x-ray radioresistance in HPV-negative HNSCC cells under mild hypoxic conditions (1% oxygen) and explored the potential for autophagy modulation as a promising therapeutic strategy. Our findings show that HNSCC cells exposed to mild hypoxic conditions exhibit increased radioresistance, which is largely mediated by the hypoxia-inducible factor (HIF) pathway. We demonstrate that siRNA knockdown of HIF-1α and HIF-1β leads to increased radiosensitivity in HNSCC cells under hypoxia. Hypoxia-induced radioresistance was not attributed to differences in DNA double strand break repair kinetics, as these remain largely unchanged under normoxic and hypoxic conditions. Rather, we identify autophagy as a critical protective mechanism in HNSCC cells following irradiation under mild hypoxia conditions. Targeting key autophagy genes, such as BECLIN1 and BNIP3/3L, using siRNA sensitizes these cells to irradiation. Whilst autophagy's role in hypoxic radioresistance remains controversial, this study highlights the importance of autophagy modulation as a potential therapeutic approach to enhance the effectiveness of radiotherapy in HNSCC.
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Affiliation(s)
- Rhianna M. Hill
- Institute of Systems, Molecular and Integrative BiologyUniversity of LiverpoolLiverpoolUK
| | - Chun Li
- Institute of Cancer and Genomic SciencesUniversity of BirminghamBirminghamUK
| | - Jonathan R. Hughes
- Institute of Cancer and Genomic SciencesUniversity of BirminghamBirminghamUK
| | - Sonia Rocha
- Institute of Systems, Molecular and Integrative BiologyUniversity of LiverpoolLiverpoolUK
| | - Gabrielle J. Grundy
- Institute of Systems, Molecular and Integrative BiologyUniversity of LiverpoolLiverpoolUK
| | - Jason L. Parsons
- Institute of Cancer and Genomic SciencesUniversity of BirminghamBirminghamUK
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Slawski J, Jaśkiewicz M, Barton A, Kozioł S, Collawn JF, Bartoszewski R. Regulation of the HIF switch in human endothelial and cancer cells. Eur J Cell Biol 2024; 103:151386. [PMID: 38262137 DOI: 10.1016/j.ejcb.2024.151386] [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: 10/25/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024] Open
Abstract
Hypoxia-inducible factors (HIFs) are transcription factors that reprogram the transcriptome for cells to survive hypoxic insults and oxidative stress. They are important during embryonic development and reprogram the cells to utilize glycolysis when the oxygen levels are extremely low. This metabolic change facilitates normal cell survival as well as cancer cell survival. The key feature in survival is the transition between acute hypoxia and chronic hypoxia, and this is regulated by the transition between HIF-1 expression and HIF-2/HIF-3 expression. This transition is observed in many human cancers and endothelial cells and referred to as the HIF Switch. Here we discuss the mechanisms involved in the HIF Switch in human endothelial and cancer cells which include mRNA and protein levels of the alpha chains of the HIFs. A major continuing effort in this field is directed towards determining the differences between normal and tumor cell utilization of this important pathway, and how this could lead to potential therapeutic approaches.
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Affiliation(s)
- Jakub Slawski
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Maciej Jaśkiewicz
- International Research Agenda 3P, Medicine Laboratory, Medical University of Gdansk, Gdansk, Poland
| | - Anna Barton
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Sylwia Kozioł
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - James F Collawn
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, USA
| | - Rafał Bartoszewski
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland.
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41
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Wang W, Sun J, Zhao J, Cheng J, Jiang G, Wang Z. Up modulation of dose-averaged linear energy transfer by simultaneous integrated boost in carbon-ion radiotherapy for pancreatic carcinoma. J Appl Clin Med Phys 2024; 25:e14279. [PMID: 38259194 PMCID: PMC11163503 DOI: 10.1002/acm2.14279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 12/14/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND Local recurrence in locally advanced pancreatic cancer (LAPC) after carbon-ion radiotherapy (CIRT) may partly attribute to low dose-averaged linear energy transfer (LETd), despite high CIRT dose. PURPOSE This study aimed to investigate the approaches to up-modulate the CIRT LETd and to evaluate the corresponding oxygen enhancement ratio (OER) reduction. METHODS 10 LAPCs that had been irradiated by CIRT with 67.5 Gy (RBE) in 15 fractions were selected. Their original plans were taken as the control plan for the LETd and OER investigations. Our considerations for up-modulating LETd were: (1) to deliver high doses to gross tumor volume core (GTVcore), while keeping dose constraints of the gastrointestinal (GI) tract in tolerance; (2) to put more Bragg-peak (BP) within the modulated targets; (3) to increase the BP density, high doses were necessary; (4) CIRT LETd could be effectively increased to small volumes; and (5) simultaneous integrated boost technique (SIB) could achieve the aforementioned tasks. The LETd and the corresponding OER distributions of each type of SIB plan were evaluated. RESULTS We delivered up to 100 Gy (RBE) to GTVcore using SIB. The mean LETd of GTV increased significantly by 21.3% from 47.8 to 58.0 keV/μm (p < 0.05). Meanwhile, the mean OER of GTVcore decreased by 6.6%, from 1.51 to 1.41 (p < 0.05). The GI LETdS in all modulated plans were not more than those in the original plans. CONCLUSIONS SIB could effectively increase CIRT LETd to LAPC, thus producing reduced OER, which may effectively overcome the radioresistance of LAPCs.
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Affiliation(s)
- Weiwei Wang
- Department of Medical PhysicsShanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghai Key Laboratory of Radiation Oncology (20dz2261000)Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
- Institute of Modern PhysicsApplied Ion Beam Physics LaboratoryFudan UniversityShanghaiChina
| | - Jiayao Sun
- Department of Medical PhysicsShanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghai Key Laboratory of Radiation Oncology (20dz2261000)Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
| | - Jingfang Zhao
- Department of Medical PhysicsShanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghai Key Laboratory of Radiation Oncology (20dz2261000)Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
- Department of Radiation OncologyFudan University Cancer CenterShanghaiChina
| | - Jingyi Cheng
- Department of Nuclear MedicineShanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghai Key Laboratory of Radiation Oncology (20dz2261000)Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
| | - Guo‐Liang Jiang
- Department of Radiation OncologyShanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghai Key Laboratory of Radiation Oncology (20dz2261000)Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
| | - Zheng Wang
- Department of Radiation OncologyShanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghai Key Laboratory of Radiation Oncology (20dz2261000)Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
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42
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McDonald RC, Fischer AH, Rusckowski M. Oxygen Sensor-Guided Fine Needle Biopsy Studies of Human Cancer Xenografts in Mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.27.596060. [PMID: 38854036 PMCID: PMC11160627 DOI: 10.1101/2024.05.27.596060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
An oxygen sensor-mounted fine-needle biopsy tool was used for in vivo measurement of oxygen levels in tumor xenografts. The system provides a means of measuring the oxygen content in harvested tumor tissue from specific locations. Oxygen in human tumor xenografts in a murine model was observed for over 1 min. Tissues were mapped in relation to oxygen tension (pO2) readings and sampled for conventional cytological examination. Careful modeling of the pO2 readings over 60 seconds yielded a diffusion coefficient for oxygen at the sensor tip, providing additional diagnostic information about the tissue before sampling. Oxygen level measurement may provide a useful adjunct to the use of biomarkers in tumor diagnosis.
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Affiliation(s)
| | | | - Mary Rusckowski
- University of Massachusetts Medical School, Associate Professor, Department of Radiology
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43
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Alafate W, Lv G, Zheng J, Cai H, Wu W, Yang Y, Du S, Zhou D, Wang P. Targeting ARNT attenuates chemoresistance through destabilizing p38α-MAPK signaling in glioblastoma. Cell Death Dis 2024; 15:366. [PMID: 38806469 PMCID: PMC11133443 DOI: 10.1038/s41419-024-06735-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/30/2024]
Abstract
Glioblastoma (GBM) is the most aggressive and lethal brain tumor in adults. This study aimed to investigate the functional significance of aryl hydrocarbon receptor nuclear translocator (ARNT) in the pathogenesis of GBM. Analysis of public datasets revealed ARNT is upregulated in GBM tissues compared to lower grade gliomas or normal brain tissues. Higher ARNT expression correlated with the mesenchymal subtype and poorer survival in GBM patients. Silencing ARNT using lentiviral shRNAs attenuated the proliferative, invasive, and stem-like capabilities of GBM cell lines, while ARNT overexpression enhanced these malignant phenotypes. Single-cell RNA sequencing uncovered that ARNT is highly expressed in a stem-like subpopulation and is involved in regulating glycolysis, hypoxia response, and stress pathways. Mechanistic studies found ARNT activates p38 mitogen-activated protein kinase (MAPK) signaling to promote chemoresistance in GBM cells. Disrupting the ARNT/p38α protein interaction via the ARNT PAS-A domain restored temozolomide sensitivity. Overall, this study demonstrates ARNT functions as an oncogenic driver in GBM pathogenesis and represents a promising therapeutic target.
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Affiliation(s)
- Wahafu Alafate
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China.
| | - Gen Lv
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Jiantao Zheng
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Haiping Cai
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Wei Wu
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
- Center of Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yong Yang
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Shichao Du
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Dong Zhou
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Peng Wang
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China.
- Department of Neurosurgery, Heyuan People's Hospital, Heyuan, China.
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44
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Udayasuryan B, Zhou Z, Ahmad RN, Sobol P, Deng C, Nguyen TTD, Kodikalla S, Morrison R, Goswami I, Slade DJ, Verbridge SS, Lu C. Fusobacterium nucleatum infection modulates the transcriptome and epigenome of HCT116 colorectal cancer cells in an oxygen-dependent manner. Commun Biol 2024; 7:551. [PMID: 38720110 PMCID: PMC11079022 DOI: 10.1038/s42003-024-06201-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 04/16/2024] [Indexed: 05/12/2024] Open
Abstract
Fusobacterium nucleatum, a gram-negative oral bacterium, has been consistently validated as a strong contributor to the progression of several types of cancer, including colorectal (CRC) and pancreatic cancer. While previous in vitro studies have shown that intracellular F. nucleatum enhances malignant phenotypes such as cell migration, the dependence of this regulation on features of the tumor microenvironment (TME) such as oxygen levels are wholly uncharacterized. Here we examine the influence of hypoxia in facilitating F. nucleatum invasion and its effects on host responses focusing on changes in the global epigenome and transcriptome. Using a multiomic approach, we analyze epigenomic alterations of H3K27ac and global transcriptomic alterations sustained within a hypoxia and normoxia conditioned CRC cell line HCT116 at 24 h following initial infection with F. nucleatum. Our findings reveal that intracellular F. nucleatum activates signaling pathways and biological processes in host cells similar to those induced upon hypoxia conditioning in the absence of infection. Furthermore, we show that a hypoxic TME favors F. nucleatum invasion and persistence and therefore infection under hypoxia may amplify malignant transformation by exacerbating the effects induced by hypoxia alone. These results motivate future studies to investigate host-microbe interactions in tumor tissue relevant conditions that more accurately define parameters for targeted cancer therapies.
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Affiliation(s)
- Barath Udayasuryan
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, USA
| | - Zirui Zhou
- Department of Chemical Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Raffae N Ahmad
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, USA
| | - Polina Sobol
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, USA
| | - Chengyu Deng
- Department of Chemical Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Tam T D Nguyen
- Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA
| | - Shivanie Kodikalla
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, USA
| | - Ryan Morrison
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, USA
| | - Ishan Goswami
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, USA
| | - Daniel J Slade
- Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA
| | - Scott S Verbridge
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, USA
| | - Chang Lu
- Department of Chemical Engineering, Virginia Tech, Blacksburg, VA, USA.
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Shiraishi Y, Matsuya Y, Fukunaga H. Reply to comment on 'Modeling for predicting survival fraction of cells after ultra-high dose rate irradiation'. Phys Med Biol 2024; 69:108002. [PMID: 38700988 DOI: 10.1088/1361-6560/ad3edc] [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: 03/18/2024] [Accepted: 04/15/2024] [Indexed: 05/05/2024]
Abstract
Liew and Mairani commented on our paper 'Modeling for predicting survival fraction of cells after ultra-high dose rate irradiation' (Shiraishiet al2024aPhys. Med. Biol.69015017), which proposed a biophysical model to predict the dose-response curve of surviving cell fractions after ultra-high dose rate irradiation following conventional dose rate irradiation by considering DNA damage yields. They suggested the need to consider oxygen concentration in our prediction model and possible issues related to the data selection process used for the benchmarking test in our paper. In this reply, we discuss the limitations of both the present model and the available experimental data for determining the model's parameters. We also demonstrate that our proposed model can reproduce the experimental survival data even when using only the experimental DNA damage data measured reliably under normoxic conditions.
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Affiliation(s)
- Yuta Shiraishi
- Graduate school of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
- Faculty of Health Sciences, Japan Healthcare University, 3-11-1-50 Tsukisamu-higashi, Toyohira-ku, Sapporo, Hokkaido, 062-0053, Japan
| | - Yusuke Matsuya
- Department of Biomedical Science and Engineering, Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai, Ibaraki, 319-1195, Japan
| | - Hisanori Fukunaga
- Department of Biomedical Science and Engineering, Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
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Lu X, Zhang W, Zhang J, Ren D, Zhao P, Ying Y. EPAS1, a hypoxia- and ferroptosis-related gene, promotes malignant behaviour of cervical cancer by ceRNA and super-enhancer. J Cell Mol Med 2024; 28:e18361. [PMID: 38722283 PMCID: PMC11081013 DOI: 10.1111/jcmm.18361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/12/2024] [Accepted: 04/11/2024] [Indexed: 05/12/2024] Open
Abstract
Hypoxia and Ferroptosis are associated with the malignant behaviour of cervical cancer. Endothelial PAS domain-containing protein 1 (EPAS1) contributes to the progression of cervical cancer. EPAS1 plays important roles in hypoxia and ferroptosis. Using the GEO dataset, machine-learning algorithms were used to screen for hypoxia- and ferroptosis-related genes (HFRGs) in cervical cancer. EPAS1 was identified as the hub gene. qPCR and WB were used to investigate the expression of EPAS1 in normal and cervical cancer tissues. The proliferation, invasion and migration of EPAS1 cells in HeLa and SiHa cell lines were detected using CCK8, transwell and wound healing assays, respectively. Apoptosis was detected by flow cytometry. A dual-luciferase assay was used to analyse the MALAT1-miR-182-5P-EPAS1 mRNA axis and core promoter elements of the super-enhancer. EPAS1 was significantly overexpressed in cervical cancer tissues. EPAS1 could increase the proliferation, invasion, migration of HeLa and SiHa cells and reduce the apoptosis of HeLa and SiHa cell. According to the double-luciferase assay, EPAS1 expression was regulated by the MALAT1-Mir-182-5p-EPAS1 mRNA axis. EPAS1 is associated with super-enhancers. Double-luciferase assay showed that the core elements of the super-enhancer were E1 and E3. EPAS1, an HFRG, is significantly overexpressed in cervical cancer. EPAS1 promotes malignant behaviour of cervical cancer cells. EPAS1 expression is regulated by super-enhancers and the MALAT1-miR-182-5P- EPAS1 mRNA axis. EPAS1 may be a target for the diagnosis and treatment of cervical cancer.
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Affiliation(s)
- Xiaoqin Lu
- Department of Obstetrics and GynecologyThe Second Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Wenyi Zhang
- Department of Obstetrics and GynecologyThe Second Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Jingyan Zhang
- Department of Obstetrics and GynecologyThe Second Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Dan Ren
- Department of Obstetrics and GynecologyThe Second Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Panpan Zhao
- Department of Obstetrics and GynecologyThe Second Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Yanqi Ying
- Department of Obstetrics and GynecologyThe Second Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
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Arora L, Patra D, Roy S, Nanda S, Singh N, Verma AK, Chakraborti A, Dasgupta S, Pal D. Hypoxia-induced miR-210-3p expression in lung adenocarcinoma potentiates tumor development by regulating CCL2 mediated monocyte infiltration. Mol Oncol 2024; 18:1278-1300. [PMID: 35658112 PMCID: PMC11077004 DOI: 10.1002/1878-0261.13260] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/24/2022] [Accepted: 06/02/2022] [Indexed: 11/09/2022] Open
Abstract
In most cancers, tumor hypoxia downregulates the expression of C-C motif chemokine 2 (CCL2), and this downregulation has been implicated in monocyte infiltration and tumor progression; however, the molecular mechanism is not yet clear. We compared noncancerous and lung-adenocarcinoma human samples for hypoxia-inducible factor 1-alpha (HIF-1A), microRNA-210-3p (mir-210-3p), and CCL2 levels. Mechanistic studies were performed on lung adenocarcinoma cell lines and 3D tumor spheroids to understand the role of hypoxia-induced miR-210-3p in the regulation of CCL2 expression and macrophage polarization. HIF-1Α stabilization increases miR-210-3p levels in lung adenocarcinoma and impairs monocyte infiltration by inhibiting CCL2 expression. Mechanistically, miR-210-3p directly binds to the 3'untranslated region (UTR) of CCL2 mRNA and silences it. Suppressing miR-210-3p substantially downregulates the effect of hypoxia on CCL2 expression. Monocyte migration is significantly hampered in miR-210-3p mimic-transfected HIF-1A silenced cancer cells. In contrast, inhibition of miR-210-3p in HIF-1A-overexpressed cells markedly restored monocyte migration, highlighting a direct link between the miR-210-3p level and tumor monocyte burden. Moreover, miR-210-3p inhibition in 3D tumor spheroids promotes monocyte recruitment and skewing towards an antitumor M1 phenotype. Anti-hsa-miR-210-3p-locked nucleic acid (LNA) delivery in a lung tumor xenograft zebrafish model caused tumor regression, suggesting that miR-210-3p could be a promising target for immunomodulatory therapeutic strategies against lung adenocarcinoma.
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Affiliation(s)
- Leena Arora
- Department of Biomedical EngineeringIndian Institute of Technology RoparPunjabIndia
| | - Debarun Patra
- Department of Biomedical EngineeringIndian Institute of Technology RoparPunjabIndia
| | - Soumyajit Roy
- Department of Biomedical EngineeringIndian Institute of Technology RoparPunjabIndia
| | - Sidhanta Nanda
- Department of Biomedical EngineeringIndian Institute of Technology RoparPunjabIndia
| | - Navneet Singh
- Department of Pulmonary MedicinePostgraduate Institute of Medical Education & Research (PGIMER)ChandigarhIndia
| | - Anita K. Verma
- Department of Zoology, Kirori Mal CollegeUniversity of DelhiIndia
| | - Anuradha Chakraborti
- Department of Experimental Medicine & BiotechnologyPostgraduate Institute of Medical Education & Research (PGIMER)ChandigarhIndia
| | - Suman Dasgupta
- Department of Molecular Biology & BiotechnologyTezpur UniversityAssamIndia
| | - Durba Pal
- Department of Biomedical EngineeringIndian Institute of Technology RoparPunjabIndia
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Horst F, Bodenstein E, Brand M, Hans S, Karsch L, Lessmann E, Löck S, Schürer M, Pawelke J, Beyreuther E. Dose and dose rate dependence of the tissue sparing effect at ultra-high dose rate studied for proton and electron beams using the zebrafish embryo model. Radiother Oncol 2024; 194:110197. [PMID: 38447870 DOI: 10.1016/j.radonc.2024.110197] [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: 11/30/2023] [Revised: 02/16/2024] [Accepted: 02/26/2024] [Indexed: 03/08/2024]
Abstract
PURPOSE A better characterization of the dependence of the tissue sparing effect at ultra-high dose rate (UHDR) on physical beam parameters (dose, dose rate, radiation quality) would be helpful towards a mechanistic understanding of the FLASH effect and for its broader clinical translation. To address this, a comprehensive study on the normal tissue sparing at UHDR using the zebrafish embryo (ZFE) model was conducted. METHODS One-day-old ZFE were irradiated over a wide dose range (15-95 Gy) in three different beams (proton entrance channel, proton spread out Bragg peak and 30 MeV electrons) at UHDR and reference dose rate. After irradiation the ZFE were incubated for 4 days and then analyzed for four different biological endpoints (pericardial edema, curved spine, embryo length and eye diameter). RESULTS Dose-effect curves were obtained and a sparing effect at UHDR was observed for all three beams. It was demonstrated that proton relative biological effectiveness and UHDR sparing are both relevant to predict the resulting dose response. Dose dependent FLASH modifying factors (FMF) for ZFE were found to be compatible with rodent data from the literature. It was found that the UHDR sparing effect saturates at doses above ∼ 50 Gy with an FMF of ∼ 0.7-0.8. A strong dose rate dependence of the tissue sparing effect in ZFE was observed. The magnitude of the maximum sparing effect was comparable for all studied biological endpoints. CONCLUSION The ZFE model was shown to be a suitable pre-clinical high-throughput model for radiobiological studies on FLASH radiotherapy, providing results comparable to rodent models. This underlines the relevance of ZFE studies for FLASH radiotherapy research.
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Affiliation(s)
- Felix Horst
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology - OncoRay, Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany
| | - Elisabeth Bodenstein
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology - OncoRay, Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany
| | - Michael Brand
- Center for Regenerative Therapies TU Dresden and Cluster of Excellence 'Physics of Life', Technische Universität Dresden, Dresden, Germany
| | - Stefan Hans
- Center for Regenerative Therapies TU Dresden and Cluster of Excellence 'Physics of Life', Technische Universität Dresden, Dresden, Germany
| | - Leonhard Karsch
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology - OncoRay, Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany
| | - Elisabeth Lessmann
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Dresden, Germany
| | - Steffen Löck
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany; Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Michael Schürer
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany; National Center for Tumor Diseases Dresden (NCT/UCC), Germany: German Cancer Research Center (DKFZ), Heidelberg, Germany; Faculty of Medicine and University Hospital Carl Gustav Carus, TUD Dresden University of Technology, Dresden, Germany; Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany
| | - Jörg Pawelke
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology - OncoRay, Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany
| | - Elke Beyreuther
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Dresden, Germany.
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Lu Y, Hua Y, Wang B, Zhong F, Theophanous A, Tahir S, Lee PY, Sigal IA. The Robust Lamina Cribrosa Vasculature: Perfusion and Oxygenation Under Elevated Intraocular Pressure. Invest Ophthalmol Vis Sci 2024; 65:1. [PMID: 38691092 PMCID: PMC11077910 DOI: 10.1167/iovs.65.5.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/21/2024] [Indexed: 05/03/2024] Open
Abstract
Purpose Elevated intraocular pressure (IOP) is thought to cause lamina cribrosa (LC) blood vessel distortions and potentially collapse, adversely affecting LC hemodynamics, reducing oxygenation, and triggering, or contributing to, glaucomatous neuropathy. We assessed the robustness of LC perfusion and oxygenation to vessel collapses. Methods From histology, we reconstructed three-dimensional eye-specific LC vessel networks of two healthy monkey eyes. We used numerical simulations to estimate LC perfusion and from this the oxygenation. We then evaluated the effects of collapsing a fraction of LC vessels (0%-36%). The collapsed vessels were selected through three scenarios: stochastic (collapse randomly), systematic (collapse strictly by the magnitude of local experimentally determined IOP-induced compression), and mixed (a combination of stochastic and systematic). Results LC blood flow decreased linearly as vessels collapsed-faster for stochastic and mixed scenarios and slower for the systematic one. LC regions suffering severe hypoxia (oxygen <8 mm Hg) increased proportionally to the collapsed vessels in the systematic scenario. For the stochastic and mixed scenarios, severe hypoxia did not occur until 15% of vessels collapsed. Some LC regions had higher perfusion and oxygenation as vessels collapsed elsewhere. Some severely hypoxic regions maintained normal blood flow. Results were equivalent for both networks and patterns of experimental IOP-induced compression. Conclusions LC blood flow was sensitive to distributed vessel collapses (stochastic and mixed) and moderately vulnerable to clustered collapses (systematic). Conversely, LC oxygenation was robust to distributed vessel collapses and sensitive to clustered collapses. Locally normal flow does not imply adequate oxygenation. The actual nature of IOP-induced vessel collapse remains unknown.
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Affiliation(s)
- Yuankai Lu
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Yi Hua
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
- Department of Biomedical Engineering, University of Mississippi, Mississippi, United States
- Department of Mechanical Engineering, University of Mississippi, Mississippi, United States
| | - Bingrui Wang
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Fuqiang Zhong
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Andrew Theophanous
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Shaharoz Tahir
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Po-Yi Lee
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Ian A. Sigal
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
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50
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Coates HW, Nguyen TB, Du X, Olzomer EM, Farrell R, Byrne FL, Yang H, Brown AJ. The constitutively active form of a key cholesterol synthesis enzyme is lipid droplet-localized and upregulated in endometrial cancer tissues. J Biol Chem 2024; 300:107232. [PMID: 38537696 PMCID: PMC11061744 DOI: 10.1016/j.jbc.2024.107232] [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: 02/29/2024] [Accepted: 03/18/2024] [Indexed: 04/26/2024] Open
Abstract
Cholesterol is essential for both normal cell viability and cancer cell proliferation. Aberrant activity of squalene monooxygenase (SM, also known as squalene epoxidase), the rate-limiting enzyme of the committed cholesterol synthesis pathway, is accordingly implicated in a growing list of cancers. We previously reported that hypoxia triggers the truncation of SM to a constitutively active form, thus preserving sterol synthesis during oxygen shortfalls. Here, we show SM truncation is upregulated and correlates with the magnitude of hypoxia in endometrial cancer tissues, supporting the in vivo relevance of our earlier work. To further investigate the pathophysiological consequences of SM truncation, we examined its lipid droplet-localized pool using complementary immunofluorescence and cell fractionation approaches and found that it exclusively comprises the truncated enzyme. This partitioning is facilitated by the loss of an endoplasmic reticulum-embedded region at the SM N terminus, whereas the catalytic domain containing membrane-associated C-terminal helices is spared. Moreover, we determined multiple amphipathic helices contribute to the lipid droplet localization of truncated SM. Taken together, our results expand on the striking differences between the two forms of SM and suggest upregulated truncation may contribute to SM-related oncogenesis.
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Affiliation(s)
- Hudson W Coates
- School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales, Australia
| | - Tina B Nguyen
- School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales, Australia
| | - Ximing Du
- School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales, Australia
| | - Ellen M Olzomer
- School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales, Australia
| | - Rhonda Farrell
- Chris O'Brien Lifehouse, Camperdown, New South Wales, Australia; Prince of Wales Private Hospital, Randwick, New South Wales, Australia
| | - Frances L Byrne
- School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales, Australia
| | - Hongyuan Yang
- School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales, Australia
| | - Andrew J Brown
- School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales, Australia.
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