Cross Talk Between Oxidative Stress and p53 Family Members in Regulating Cancer

2021 ◽  
pp. 1-16
Author(s):  
Sumiran Kumar Gurung ◽  
Lokesh Nigam ◽  
Kunwar Somesh Vikramdeo ◽  
Neelima Mondal
Keyword(s):  
Oxidative Stress ◽  
Cross Talk ◽  
Family Members ◽  
P53 Family

Interactions of gut epithelial barrier, microbiome and p53 family members – what is their impact on liver cirrhosis?

2018 ◽  
Vol 56 (01) ◽  
pp. E2-E89 ◽  
Author(s):  
L Wächter ◽  
M Haderer ◽  
E Aschenbrenner ◽  
K Pollinger ◽  
S Schlosser ◽  
...  
Keyword(s):  
Liver Cirrhosis ◽  
Family Members ◽  
Epithelial Barrier ◽  
P53 Family

scholarly journals Molecular functions of ASK family in diseases caused by stress-induced inflammation and apoptosis

2020 ◽  
Author(s):  
Kazuki Kojima ◽  
Hidenori Ichijo ◽  
Isao Naguro
Keyword(s):  
Oxidative Stress ◽  
Endoplasmic Reticulum ◽  
Adverse Effects ◽  
Er Stress ◽  
Inflammatory Diseases ◽  
Family Members ◽  
Disease States ◽  
Molecular Functions ◽  
Critical Responses ◽  
Proper Response

Summary VCells are constantly exposed to various types of stress, and disruption of the proper response lead to a variety of diseases. Among them, inflammation and apoptosis are important examples of critical responses and should be tightly regulated, as inappropriate control of these responses is detrimental to the organism. In several disease states, these responses are abnormally regulated, with adverse effects. Apoptosis signal-regulating kinase (ASK) family members are stress-responsive kinases that regulate inflammation and apoptosis after a variety of stimuli, such as oxidative stress and endoplasmic reticulum (ER) stress. In this review, we summarize recent reports on the ASK family in terms of their involvement in inflammatory diseases, focusing on upstream stimuli that regulate ASK family members.

scholarly journals Cross Talk between eIF2α and eEF2 Phosphorylation Pathways Optimizes Translational Arrest in Response to Oxidative Stress

iScience ◽  
2019 ◽  
Vol 20 ◽  
pp. 466-480 ◽  
Author(s):  
Marisa Sanchez ◽  
Yingying Lin ◽  
Chih-Cheng Yang ◽  
Philip McQuary ◽  
Alexandre Rosa Campos ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Cross Talk ◽  
Translational Arrest

scholarly journals Drosophila p53 isoforms have overlapping and distinct functions in germline genome integrity and oocyte quality control

eLife ◽  
2022 ◽  
Vol 11 ◽  
Author(s):  
Ananya Chakravarti ◽  
Heshani N Thirimanne ◽  
Savanna Brown ◽  
Brian R Calvi
Keyword(s):  
Quality Control ◽  
Family Members ◽  
P53 Gene ◽  
Genotoxic Stress ◽  
Oocyte Quality ◽  
Protein Isoforms ◽  
Dna Breaks ◽  
P53 Family ◽  
Dna Lesion ◽  
P53 Isoforms

p53 gene family members in humans and other organisms encode a large number of protein isoforms whose functions are largely undefined. Using Drosophila as a model, we find that a p53B isoform is expressed predominantly in the germline where it colocalizes with p53A into subnuclear bodies. It is only p53A, however, that mediates the apoptotic response to ionizing radiation in the germline and soma. In contrast, p53A and p53B are both required for the normal repair of meiotic DNA breaks, an activity that is more crucial when meiotic recombination is defective. We find that in oocytes with persistent DNA breaks p53A is also required to activate a meiotic pachytene checkpoint. Our findings indicate that Drosophila p53 isoforms have DNA lesion and cell type-specific functions, with parallels to the functions of mammalian p53 family members in the genotoxic stress response and oocyte quality control.

Abstract 1375: Brain Renin Angiotensin Blockade Attenuates Cytokines and Oxidative Stress in the Paraventricular Nucleus of Hypothalamus and Decreases Sympathoexcitation in Heart Failure Rats

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Ying Ma ◽  
Yu-Ming Kang* ◽  
Zhi-Ming Yang ◽  
Joseph Francis*
Keyword(s):  
Oxidative Stress ◽  
Heart Failure ◽  
Paraventricular Nucleus ◽  
Cross Talk ◽  
Renin Angiotensin System ◽  
Heart Weight ◽  
Angiotensin System ◽  
Renin Angiotensin ◽  
The Brain ◽  
And Oxidative Stress

Introduction: Neurohumoral mechanisms play an important role in the pathophysiology of congestive heart failure (HF). Recent studies suggest that the brain renin angiotensin system (RAS) plays an important role in regulating body fluids and sympathetic drive in HF. In addition, it has been shown that there is cross talk between cytokines and RAS in cardiovascular disease. In this study we determined whether blockade of brain RAS attenuate inflammatory cytokines and oxidative stress in HF rats. Methods and Results: Adult male Sprague-Dawley rats were implanted with intracerebroventricular (ICV) cannulae and subjected to coronary artery ligation to induce HF and confirmed by echocardiography. Rats were treated with an angiotensin type 1 receptors (AT1-R) antagonist losartan (LOS, 20 μg/hr, ICV) or vehicle (VEH) for 4 weeks. At the end of the study, left ventricular (LV) function was measured by echocardiography and rats were sacrificed, and brain and plasma samples were collected for measurements of cytokines and superoxide using immunohistochemistry, Western blot and real time RT-PCR. HF rats induced significant increases in Nuclear Factor-kappaB (NF-κB) p50-positive neurons and activated microglia in the paraventricular nucleus (PVN) of hypothalamus, and TNF-α, IL-1β, IL-6 and NF-κB p50 in hypothalamus when compared with sham rats. These animals also had increased staining for dihydroethidium (DHE) and plasma levels of norepinephrine (NE), an indirect indicator of sympathetic activity. In contrast, ICV treatment with LOS attenuated cytokine expression and oxidative stress in the PVN and hypothalamus when compared with VEH treated HF rats. ICV treatment with LOS also reduced plasma NE levels, and proinflammatory cytokine, heart weight to body weight ratio with decreased LV end-diastolic pressure. Conclusions : These findings suggest the cross talk between the cytokines and renin angiotensin system within the brain contribute to sympatho-excitation in HF.

Differential regulation of transcription and induction of programmed cell death by human p53-family members p63 and p73

FEBS Letters ◽  
2002 ◽  
Vol 525 (1-3) ◽  
pp. 93-99 ◽  
Author(s):  
Sebastian Dietz ◽  
Karen Rother ◽  
Casimir Bamberger ◽  
Hartwig Schmale ◽  
Joachim Mössner ◽  
...  
Keyword(s):  
Cell Death ◽  
Programmed Cell Death ◽  
Family Members ◽  
Differential Regulation ◽  
Regulation Of Transcription ◽  
P53 Family

scholarly journals Carvacrol and Thymol Modulate the Cross-Talk between TNF-α and IGF-1 Signaling in Radiotherapy-Induced Ovarian Failure

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Yasmen F. Mahran ◽  
Amira M. Badr ◽  
Alhanouf Aldosari ◽  
Raghad Bin-Zaid ◽  
Hind N. Alotaibi
Keyword(s):  
Oxidative Stress ◽  
Cross Talk ◽  
Ovarian Failure ◽  
Radioprotective Effect ◽  
Whole Body ◽  
Nuclear Antigen ◽  
Hormonal Changes ◽  
Tnf Α ◽  
Ovarian Damage ◽  
The Cross

Premature ovarian failure (POF) is a common cause of infertility in premenopausal women who are unavoidably exposed to cytotoxic therapy. Radiotherapy is one of the most effective cytotoxic treatments. However, the radiosensitivity of ovarian tissues limits its therapeutic outcome and results in the depletion of the primordial follicle and loss of fertility. Therefore, the need for an effective radioprotective therapy is evident especially when none of the current clinically used modalities for radioprotection succeeds efficiently. The present study investigated the potential radioprotective effect of carvacrol (CAR) (80 mg) or thymol (80 mg) on gamma- (γ-) irradiation-induced ovarian damage as well as their role in the cross-talk between IGF-1 and TNF-α signaling and antioxidative activity. In immature female Wister rats, a single dose of whole-body irradiation (3.2 Gy, L D 20 ) produced considerable ovarian damage, which was evident by histopathological findings and hormonal changes. Interestingly, pretreatment with CAR or thymol significantly enhanced the follicular development and restored the anti-Mullerian hormone (AMH), E2, and FSH levels. Both essential oils improved the irradiation-mediated oxidative stress and reduction in proliferating cell nuclear antigen (PCNA) expression. Moreover, irradiated rats exhibited an inverse relationship between IGF-1 and TNF-α levels two days post irradiation, which was further inverted by the pretreatment with CAR and thymol and ought to contribute in their radioprotective mechanisms. In conclusion, CAR and thymol showed a radioprotective effect and rescued the ovarian reserve mainly through counteracting oxidative stress and the dysregulated cross-talk between IGF-1 and TNF-α.

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