Article
Gastroenterology & Hepatology
Hulin Chang, Jibin Li, Ying Luo, Bing Wu, Chong Yuan, Xilin Geng
Summary: TFB2M plays a critical role in enhancing the reprogramming of glucose metabolism in HCC cells, mainly through upregulation of glycolytic genes and downregulation of PGC-1 alpha, thus promoting cancer progression and metastasis through HIF-1 alpha-regulated mechanisms.
JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY
(2021)
Review
Immunology
Charles Thomas, Damien Leleu, David Masson
Summary: HIF-1α plays a dual role in atherosclerosis, with both detrimental and beneficial effects. Its impact depends on the cell type expressing HIF-1α, and it can be stabilized by oxLDLs and oxysterols, leading to various responses including inflammation, angiogenesis, and metabolic reprogramming. Additionally, HIF-1α promotes the accumulation of cholesterol and triglycerides in macrophages.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Ziqi Yang, Biyan Ni, Tian Zhou, Zijing Huang, Hong Zhou, Yang Zhou, Shiya Lin, Chang He, Xialin Liu
Summary: This study discovered an unexpected anti-angiogenic effect of large diameter intravitreal punctures, which significantly suppressed retinal neovascularization, improved oxygenation, and reduced inflammatory responses. Lowering intraocular pressure may be a promising therapeutic avenue for treating retinal neovascular diseases.
Article
Immunology
Gabriela Burczyk, Iwona Cichon, Elzbieta Kolaczkowska
Summary: 4-octyl itaconate (4-OI) diminishes the formation of neutrophil extracellular traps (NETs) in mice, regardless of their health status or metabolic challenges. The inhibition is mediated by downregulating Hif-1 alpha and inducing HO-1.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Yefei Huang, Zixuan Liu, Lingling Li, Min Jiang, Yu Tang, Li Zhou, Jing Li, Yansu Chen
Summary: Sesamin inhibits hypoxia-induced colorectal cancer angiogenesis via the NF-kappa B/HIF-1 alpha/VEGFA signaling pathway. Sesamin significantly suppressed hypoxia-stimulated CRC angiogenesis both in vitro and in vivo. This study provides a theoretical and experimental basis for the use of sesamin in the prevention and treatment of CRC.
Article
Biochemistry & Molecular Biology
Kshitiz, Junaid Afzal, Yasir Suhail, Hao Chang, Maimon E. Hubbi, Archer Hamidzadeh, Ruchi Goyal, Yamin Liu, Peng Sun, Stefania Nicoli, Chi Dang, Andre Levchenko
Summary: The response of individual cancer cells to hypoxic conditions is dynamic and variable, with oscillatory activity being one of the response classes. Reactive-oxygen-species-dependent chaperone-mediated autophagy of HIF-1 alpha plays a role in regulating these responses in some cells. The abundance of extracellular lactate modulates the oscillatory response.
Review
Immunology
Yang-Yang Tang, Da-Cheng Wang, You-Qiang Wang, An-Fang Huang, Wang-Dong Xu
Summary: The article discusses the dysregulation of HIF-1 alpha activation in autoimmune diseases, leading to disrupted cellular metabolism, increased proliferation of inflammatory cells, and elevated release of inflammatory cytokines. By studying the signaling pathway of HIF-1 alpha and its role in autoimmune diseases, the collected information can provide a theoretical basis for future clinical trials and treatment strategies based on HIF-1 alpha and inflammatory autoimmune disorders.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Agriculture, Multidisciplinary
Lucia Adriana Lifshits, Miryam Rabin, Ran Tohar, Francesca Netti, Matan Gabay, Marina Sova, Daniel Z. Bar, Evgeny Weinberg, Lihi Adler-Abramovich, Maayan Gal
Summary: Collagen is an essential protein in mammalian tissues and plays a crucial role in various cellular processes. By modulating cellular hypoxia pathways, it has been discovered that the accumulation of collagen can be enhanced, thus increasing natural collagen production in mammalian cells.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Pharmacology & Pharmacy
Youzhen Wei, Kun Wang, Yafang Zhang, Yi Duan, Yan Tian, Hongling Yin, Xuelian Fu, Zuan Ma, Jianjun Zhou, Min Yu, Qingbin Ni, Wenjie Tang
Summary: It has been proven that hydrogen has significant anti-inflammatory effects. However, the early dynamic process of the inflammatory response caused by lipopolysaccharide (LPS) and the anti-inflammatory effect of hydrogen has not been definitively reported.
FRONTIERS IN PHARMACOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Yi-Hsun Huang, Cheng-Hsiang Kuo, I-Chen Peng, Yi-Sheng Chang, Sung-Huei Tseng, Edward M. Conway, Hua-Lin Wu
Summary: The study reveals that rTMD1 not only inhibits VEGF-induced angiogenesis in vitro, but also significantly reduces retinal neovascularization in an OIR animal model while sparing normal physiological vessel growth. Furthermore, loss of TMD1 promotes PA in OIR.
CELLULAR AND MOLECULAR LIFE SCIENCES
(2021)
Article
Immunology
J. L. Fachi, L. P. Pral, J. A. C. dos Santos, A. C. Codo, S. de Oliveira, J. S. Felipe, F. F. F. Zambom, N. O. S. Camara, P. M. M. M. Vieira, M. Colonna, M. A. R. Vinolo
Summary: The study shows that a hypoxic environment increases proliferation and activation of intestinal ILC3, a response regulated by HIF-1 alpha. This activation relies on a HIF-1 alpha-dependent transcriptional program and is important for ILC3 functions in both steady state and infectious conditions.
MUCOSAL IMMUNOLOGY
(2021)
Article
Medicine, Research & Experimental
Eman M. Awad, Al-Shaimaa F. Ahmed, Mahmoud El-Daly, Ali H. Amin, Nashwa F. G. El-Tahawy, AlShimaa Wagdy, Morley D. Hollenberg, Ashraf Taye
Summary: The study found that dihydromyricetin (DHM) can prevent vascular endothelial dysfunction caused by hyperglycaemia, inhibiting vasoconstriction, improving endothelial vasodilation, and reducing inflammation and oxidative stress.
BIOMEDICINE & PHARMACOTHERAPY
(2022)
Review
Neurosciences
Yang-Yang Wang, Zhen-Ting Huang, Ming-Hao Yuan, Feng Jing, Ruo-Lan Cai, Qian Zou, Yin-Shuang Pu, Sheng-Yuan Wang, Fei Chen, Wen-Min Yi, Hui-Ji Zhang, Zhi-You Cai
Summary: HIF-1 alpha plays a dual role in Alzheimer's disease, both promoting pathological development and resisting pathogenic effects, making it a complex factor with potential therapeutic implications.
JOURNAL OF ALZHEIMERS DISEASE
(2021)
Review
Biochemistry & Molecular Biology
Kiichi Hirota
Summary: Oxygen is essential for the body, with the hypoxia-inducible factor playing a key role in hypoxic environments. HIF-prolyl hydroxylases serve as oxygen sensors, detecting decreases in oxygen partial pressure. Inhibiting HIF-PH can activate HIF artificially for medical intervention purposes.
Article
Oncology
Moritz von Fallois, Friederike Katharina Kosyna, Markus Mandl, Yosef Landesman, Jurgen Dunst, Reinhard Depping
Summary: CRM1, as an overexpressed nuclear export receptor in cancer, can be selectively inhibited by Selinexor, a new FDA-approved drug. Selinexor significantly reduces the intranuclear level of HIF-1 alpha protein and enhances radiosensitivity in cancer cells, suggesting that targeting the HIF pathway by Selinexor could be a promising approach to overcome hypoxia-induced radioresistance.
JOURNAL OF CANCER RESEARCH AND CLINICAL ONCOLOGY
(2021)
Article
Cell Biology
Xueqiong Meng, Yixiang Chen, Salvador Macip, Keith Leppard
Summary: Depletion of PML-II in HeLa cells reduced cell death induced by IFN alpha, decreased expression of pro-apoptotic ISG proteins, and suppressed expression of PUMA and TRAIL. Lack of PML-II also enhanced pro-survival signaling activation, leading to increased resistance to IFN alpha-induced apoptosis.
CELL COMMUNICATION AND SIGNALING
(2021)
Article
Biochemistry & Molecular Biology
Samuel B. Bader, Tiffany S. Ma, Charlotte J. Simpson, Jiachen Liang, Sakura Eri B. Maezono, Monica M. Olcina, Francesca M. Buffa, Ester M. Hammond
Summary: This study demonstrates that fluctuating hypoxic conditions inducing replication catastrophe lead to increased expression and activity of APOBEC3B, contributing to the accumulation of APOBEC-mediated mutations. In contrast, stable hypoxic conditions do not significantly impact APOBEC3B. The number of APOBEC-mediated mutations in patient tumors is closely correlated with a hypoxia signature, indicating that hypoxia-induced replication catastrophe drives genomic instability in tumors through increasing the activity of APOBEC3B.
NUCLEIC ACIDS RESEARCH
(2021)
Editorial Material
Oncology
Geoff S. Higgins, Ester M. Hammond
Summary: The study investigates the contribution of acute/transient hypoxia and chronic hypoxia to radiosensitivity, using two hypoxia markers and pentoxifylline to enhance blood flow to regions experiencing transient hypoxia.
BRITISH JOURNAL OF CANCER
(2022)
Article
Chemistry, Multidisciplinary
Stanislav S. Piletsky, Elena Piletska, Marta Poblocka, Salvador Macip, Donald J. L. Jones, Marta Braga, Thong H. Cao, Rajinder Singh, Alan C. Spivey, Eric O. Aboagye, Sergey A. Piletsky
Summary: Proteomic mapping of cell surfaces is crucial for drug development and clinical diagnostics. The 'snapshot imprinting' method described in this work enables the identification of cell surface markers and epitopes, with potential applications in personalized cancer treatment. The analysis of cancer cell lines and selective targeting of specific epitopes using molecularly imprinted polymer nanoparticles demonstrate the effectiveness of this approach.
Article
Oncology
Xueqiong Meng, Xiaoxi Cui, Xiaoya Shao, Yanqi Liu, Yihao Xing, Victoria Smith, Shiqiu Xiong, Salvador Macip, Yixiang Chen
Summary: The combination of dsRNA poly(I:C) and proteasome inhibitors synergistically induce apoptosis in cervical cancer cells by activating multiple pro-apoptotic pathways, suggesting a potential therapeutic combination.
TRANSLATIONAL ONCOLOGY
(2022)
Review
Oncology
Vinesh Dhokia, John A. Y. Moss, Salvador Macip, Joanna L. Fox
Summary: Cellular senescence and apoptosis were historically considered as distinct cell fate pathways, but they share common proteins. p53 plays a key role in determining cell fate, but its decision-making process is not fully understood. Cell fate is dynamic and can be shifted by the right combination of activators and inhibitors. This review focuses on the regulation and induction of apoptosis and senescence, as well as their alterations in chronic diseases.
Review
Public, Environmental & Occupational Health
Salvador Macip, Oriol Yuguero
Summary: COVID-19 pandemic poses significant challenges to global healthcare and exacerbates social issues and inequalities. This generates a series of ethical problems that require careful analysis to avoid repeating similar mistakes in future crises.
FRONTIERS IN PUBLIC HEALTH
(2022)
Article
Oncology
Xiaoya Shao, Xueqiong Meng, Haiping Yang, Xinxin Wang, Ling Qin, Guomin Shen, Xiaoping Xi, Huijuan Zhao, Salvador Macip, Yixiang Chen
Summary: In this study, we found that IFN-gamma secreted by dysfunctional T cells can enhance CLL cells resistance to ABT-199. The expression of anti-apoptotic proteins BCL-2, MCL-1, and BCL-xL were up-regulated by IFN-gamma stimulation via JAK1/2-STAT3 pathway. Blocking this pathway with inhibitors increased the efficiency of ABT-199 to induce CLL cell apoptosis, suggesting a potential therapeutic combination strategy to overcome ABT-199 resistance.
LEUKEMIA & LYMPHOMA
(2023)
Article
Oncology
Katja R. Worth, Ioanna Papandreou, Ester M. Hammond
Summary: Louis Harold Gray's pivotal research in the 1950s demonstrated the vital role of oxygen in radiotherapy. This research inspired further studies into the mechanistic role of molecular oxygen and its relationship with tumor hypoxia and patient outcomes. Despite the abundance of pre-clinical data supporting hypoxia-targeted treatments, the clinical application of these therapies remains limited.
BRITISH JOURNAL OF CANCER
(2023)
Article
Chemistry, Multidisciplinary
Antoine L. D. Wallabregue, Hannah Bolland, Stephen Faulkner, Ester M. Hammond, Stuart J. Conway
Summary: Hypoxia, which occurs in various biological contexts, has a negative impact on the survival of biological systems such as plants, bacterial biofilms, and tumors. Chemical probes that can study biological hypoxia help to improve the understanding and treatment of diseases related to low oxygen levels. This study presents a range of indolequinone-based bioreductive fluorescent probes that can image different levels of hypoxia in cellular cultures, providing a convenient alternative to antibody-based imaging approaches.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Marie H. C. Boulet, Hannah R. Bolland, Ester M. Hammond, Adam C. Sedgwick
Summary: Platinum (IV) anticancer agents show potential to overcome limitations of commonly used Pt (II) chemotherapeutics and an improved understanding of their intracellular reduction is needed. Two fluorescence responsive oxaliplatin (IV) complexes, OxaliRes and OxaliNap, were synthesized and showed increased fluorescence emission intensity upon reduction by sodium ascorbate (NaAsc). Treatment with NaAsc increased fluorescence intensity in a dose-dependent manner in colorectal cancer cells. Hypoxia-induced reduction of OxPt (IV) complexes with <0.1% O-2 resulted in the greatest fluorescence signal and showed significant differences in toxicity compared to normoxia (21% O-2).
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Oncology
Katarzyna B. Leszczynska, Monika Dzwigonska, Hala Estephan, Jutta Moehlenbrink, Elizabeth Bowler, Amato J. Giaccia, Jakub Mieczkowski, Bozena Kaminska, Ester M. Hammond
Summary: Local hypoxia in solid tumors is associated with aggressive disease and therapy resistance. Widespread changes in gene expression occur in response to hypoxia, with decreased chromatin accessibility and specific pathways affected. The RNA helicase DDX5 is repressed in hypoxia and its rescue further accumulates replication stress and R-loop levels. These findings suggest that the repression of multiple R-loop processing factors, including DDX5, is a critical part of the biological response to hypoxia.
MOLECULAR ONCOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Tiffany S. Ma, Katja R. Worth, Conor Maher, Natalie Ng, Chiara Beghe, Natalia Gromak, Anna M. Rose, Ester M. Hammond
Summary: Hypoxia, a common feature of solid tumors, can lead to the accumulation of R-loops, which affects gene transcription and ribosomal RNA synthesis, playing a critical role in tumorigenesis.
NUCLEIC ACIDS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Cagla Tosun, Antoine L. D. Wallabregue, Maxim Mallerman, Sarah E. Phillips, Claire M. Edwards, Stuart J. Conway, Ester M. Hammond
Summary: Hypoxia-activated prodrugs (HAPs) are a promising strategy for targeting hypoxic regions in tumors while sparing normal tissue. However, visualizing the delivery and activation of HAPs in hypoxic regions has been a challenge. In this study, a modified version of a nitroimidazole bioreductive group was developed to enable imaging of the release of a fluorescent dye and the activation of the prodrug using the EF5 antibody. This modified bioreductive group was used to synthesize a new prodrug, EF5-Pano, which showed imaging capability and cytotoxic effects in hypoxic multiple myeloma cells.
Article
Chemistry, Multidisciplinary
Elena Piletska, Kirabo Magumba, Lesslly Joseph, Alvaro Garcia Cruz, Rachel Norman, Rajinder Singh, Antonella F. S. Tabasso, Donald J. L. Jones, Salvador Macip, Sergey Piletsky
Summary: Determining the sensitivity of lung cancer cell lines to ionising radiation based on cell surface proteomic differences was achieved using molecular imprinting technology. The analysis identified two membrane proteins associated with radiotherapy resistance, indicating the potential of this technology in discovering new biomarkers and developing personalized medicine approaches for cancer treatment.