Fifteen compelling open questions in plant cell biology DOI Creative Commons
Adrienne Roeder, Marisa S. Otegui, Ram Dixit

и другие.

The Plant Cell, Год журнала: 2021, Номер 34(1), С. 72 - 102

Опубликована: Сен. 13, 2021

As scientists, we are at least as excited about the open questions-the things do not know-as discoveries. Here, asked 15 experts to describe most compelling questions in plant cell biology. These their questions: How organelle identity, domains, and boundaries maintained under continuous flux of vesicle trafficking membrane remodeling? Is cortical microtubule cytoskeleton a mechanosensory apparatus? cellular pathways wall synthesis, assembly, modification, integrity sensing linked plants? Why plasmodesmata close? there retrograde signaling from vacuoles nucleus? root cells accommodate fungal endosymbionts? What is role edges morphogenesis? division site determined? emergent effects polyploidy on biology cell, how any such "rules" conditioned by type? Can mechanical forces trigger new fates does single differentiated somatic reprogram gain pluripotency? polarity develop de-novo isolated cells? spectrum functions for membraneless organelles intrinsically disordered proteins? plants deal with internal noise? order emerge propagate organs organisms complex dynamical processes? We hope you find discussions these thought provoking inspiring.

Язык: Английский

Roles of circadian clocks in cancer pathogenesis and treatment DOI Creative Commons
Yool Lee

Experimental & Molecular Medicine, Год журнала: 2021, Номер 53(10), С. 1529 - 1538

Опубликована: Окт. 1, 2021

Abstract Circadian clocks are ubiquitous timing mechanisms that generate approximately 24-h rhythms in cellular and bodily functions across nearly all living species. These internal clock systems enable organisms to anticipate respond daily changes their environment a timely manner, optimizing temporal physiology behaviors. Dysregulation of circadian by genetic environmental risk factors increases susceptibility multiple diseases, particularly cancers. A growing number studies have revealed dynamic crosstalk between cancer pathways, providing mechanistic insights into the therapeutic utility treatment. This review will discuss roles pathogenesis, highlighting recent advances chronotherapeutic approaches for improved

Язык: Английский

Процитировано

111

The two‐process model of sleep regulation: Beginnings and outlook DOI Creative Commons
Alexander A. Borbély

Journal of Sleep Research, Год журнала: 2022, Номер 31(4)

Опубликована: Май 3, 2022

Summary The two‐process model serves as a major conceptual framework in sleep science. Although dating back more than four decades, it has not lost its relevance for research today. Retracing origins, I describe how animal experiments aimed at exploring the oscillators driving circadian sleep–wake rhythm led to recognition of gradients states within daily period. Advances signal analysis revealed that level slow‐wave activity non‐rapid eye movement electroencephalogram is high beginning 12‐light period and then declines. After deprivation, enhanced. By scheduling recovery animal's period, conflict between sleep–wake‐dependent influence resulted two‐stage pattern. These provided basis first version model. Sleep deprivation humans showed decline during exponential. posits homeostatic process (Process S) interacts with controlled by pacemaker C). At present, facets regulation are being investigated synaptic well transcriptome proteome domains. notion been extended from global phenomenon local representations, while master supplemented multiple peripheral oscillators. original interpretation emergence may be viewed an escape rigid control imposed still upheld.

Язык: Английский

Процитировано

93

The molecular athlete: exercise physiology from mechanisms to medals DOI
Regula Furrer, John A. Hawley, Christoph Handschin

и другие.

Physiological Reviews, Год журнала: 2023, Номер 103(3), С. 1693 - 1787

Опубликована: Янв. 5, 2023

Human skeletal muscle demonstrates remarkable plasticity, adapting to numerous external stimuli including the habitual level of contractile loading. Accordingly, function and exercise capacity encompass a broad spectrum, from inactive individuals with low levels endurance strength elite athletes who produce prodigious performances underpinned by pleiotropic training-induced muscular adaptations. Our current understanding signal integration, interpretation, output coordination cellular molecular mechanisms that govern plasticity across this continuum is incomplete. As such, training methods their application largely rely on “trial-and-error” approach, experience practices successful coaches often providing bases for “post hoc” scientific enquiry research. This review provides synopsis morphological functional changes along underlying adaptation endurance- resistance-based training. These traits are placed in context innate genetic interindividual differences performance, special consideration given aging athletes. Collectively, we provide comprehensive overview response different modes how such adaptations translate “molecules medals.”

Язык: Английский

Процитировано

92

Circadian rhythms and cancers: the intrinsic links and therapeutic potentials DOI Creative Commons
Li Zhou, Zhe Zhang, Edouard C. Nice

и другие.

Journal of Hematology & Oncology, Год журнала: 2022, Номер 15(1)

Опубликована: Март 4, 2022

The circadian rhythm is an evolutionarily conserved time-keeping system that comprises a wide variety of processes including sleep-wake cycles, eating-fasting and activity-rest coordinating the behavior physiology all organs for whole-body homeostasis. Acute disruption may lead to transient discomfort, whereas long-term irregular will result in dysfunction organism, therefore increasing risks numerous diseases especially cancers. Indeed, both epidemiological experimental evidence has demonstrated intrinsic link between dysregulated cancer. Accordingly, rapidly understanding molecular mechanisms rhythms opening new options cancer therapy, possibly by modulating clock. In this review, we first describe general regulators their functions on addition, provide insights into underlying how several types (including sleep-wake, eating-fasting, activity-rest) can drive progression, which expand our development from clock perspective. Moreover, also summarize potential applications treatment, optional therapeutic strategy patients.

Язык: Английский

Процитировано

91

Defining the age-dependent and tissue-specific circadian transcriptome in male mice DOI Creative Commons
Christopher A. Wolff, Miguel A. Gutiérrez-Monreal, Lingsong Meng

и другие.

Cell Reports, Год журнала: 2023, Номер 42(1), С. 111982 - 111982

Опубликована: Янв. 1, 2023

Cellular circadian clocks direct a daily transcriptional program that supports homeostasis and resilience. Emerging evidence has demonstrated age-associated changes in functions. To define age-dependent at the systems level, we profile transcriptome hypothalamus, lung, heart, kidney, skeletal muscle, adrenal gland three age groups. We find tissue-specific clock output changes. Aging reduces number of rhythmically expressed genes (REGs), indicative weakened control. REGs are enriched for hallmarks aging, adding another dimension to our understanding aging. Analyzing differential gene expression within tissue four different times day identifies distinct clusters differentially (DEGs). Increased variability across is common feature aged tissues. This analysis extends landscape aging highlights impact on function temporal expression.

Язык: Английский

Процитировано

89

Circadian modulation by time-restricted feeding rescues brain pathology and improves memory in mouse models of Alzheimer’s disease DOI Creative Commons
Daniel S. Whittaker,

Laila Akhmetova,

Daniel E. Carlin

и другие.

Cell Metabolism, Год журнала: 2023, Номер 35(10), С. 1704 - 1721.e6

Опубликована: Авг. 21, 2023

Circadian disruptions impact nearly all people with Alzheimer's disease (AD), emphasizing both their potential role in pathology and the critical need to investigate therapeutic of circadian-modulating interventions. Here, we show that time-restricted feeding (TRF) without caloric restriction improved key components including behavioral timing, pathology, hippocampal transcription, memory two transgenic (TG) mouse models AD. We found TRF had remarkable capability simultaneously reducing amyloid deposition, increasing Aβ42 clearance, improving sleep memory, normalizing daily transcription patterns multiple genes, those associated AD neuroinflammation. Thus, our study unveils for first time pleiotropic nature timed on AD, which has far-reaching effects beyond metabolism, ameliorating neurodegeneration misalignment circadian rhythmicity. Since can substantially modify trajectory, this intervention immediate translational potential, addressing urgent demand accessible approaches reduce or halt progression.

Язык: Английский

Процитировано

67

Sleep and circadian rhythmicity as entangled processes serving homeostasis DOI
Paul Franken, Derk‐Jan Dijk

Nature reviews. Neuroscience, Год журнала: 2023, Номер 25(1), С. 43 - 59

Опубликована: Дек. 1, 2023

Язык: Английский

Процитировано

51

Oncogenic fatty acid oxidation senses circadian disruption in sleep-deficiency-enhanced tumorigenesis DOI
Fei Peng, Jinxin Lü, Keyu Su

и другие.

Cell Metabolism, Год журнала: 2024, Номер 36(7), С. 1598 - 1618.e11

Опубликована: Май 20, 2024

Язык: Английский

Процитировано

23

Brain-muscle communication prevents muscle aging by maintaining daily physiology DOI
Arun Kumar, Mireia Vaca-Dempere, Thomas Mortimer

и другие.

Science, Год журнала: 2024, Номер 384(6695), С. 563 - 572

Опубликована: Май 2, 2024

A molecular clock network is crucial for daily physiology and maintaining organismal health. We examined the interactions importance of intratissue networks in muscle tissue maintenance. In arrhythmic mice showing premature aging, we created a basic module involving central peripheral (muscle) clock. Reconstituting brain-muscle sufficient to preserve fundamental homeostatic functions prevent aging. However, achieving whole requires contributions from other clocks. Mechanistically, acts as gatekeeper, selectively suppressing detrimental signals while integrating important functions. Our research reveals interplay between clocks function underscores impact eating patterns on these interactions.

Язык: Английский

Процитировано

20

Circadian regulation of cancer stem cells and the tumor microenvironment during metastasis DOI
Yu Wang, Rajesh Narasimamurthy, Meng Qu

и другие.

Nature Cancer, Год журнала: 2024, Номер 5(4), С. 546 - 556

Опубликована: Апрель 23, 2024

Язык: Английский

Процитировано

19