Abstract：
:Lipid droplets (LDs) are versatile organelles with central roles in lipid and energy metabolism in all eukaryotes. They primarily buffer excess fatty acids by storing them as neutral lipids, mainly triglycerides and steryl esters. The neutral lipids form a core, surrounded by a unique phospholipid monolayer coated with a defined set of proteins. Thus, the architecture of LDs sets them apart from all other membrane-bound organelles. The origin of LDs remained controversial for a long time. However, it has become clear that their biogenesis occurs at the endoplasmic reticulum (ER) and is a lipid driven process. LD formation is intiatied by the demixing of neutral lipids from membrane phospholipids, leading to the formation of a neutral lipid "lens" like structure between the leaflets of the ER bilayer. As this lens grows, it buds out of the membrane towards the cytosol to give rise to a LD. Recent biophysical and cell biological experiments indicate that LD biogenesis occurs at specific ER domains. These domains are enriched in various proteins required for normal LD formation and possibly have a lipid composition distinct from the remaining ER membrane. Here, we describe the prevailing model for LD formation and discuss recent insights on how proteins organize ER domains involved in LD biogenesis.
journal_name
Semin Cell Dev Bioljournal_title
Seminars in cell & developmental biologyauthors
Renne MF,Klug YA,Carvalho Pdoi
10.1016/j.semcdb.2020.03.001subject
Has Abstractpub_date
2020-12-01 00:00:00pages
14-23eissn
1084-9521issn
1096-3634pii
S1084-9521(18)30318-5journal_volume
108pub_type
杂志文章,评审abstract：:Biological tubes are a prevalent structural design across living organisms. They provide essential functions during the development and adult life of an organism. Increasing progress has been made recently in delineating the cellular and molecular mechanisms underlying tubulogenesis. This review aims to introduce asci...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2012.03.004
更新日期：2012-05-01 00:00:00
abstract：:Understanding how some animals are immortal and avoid the ageing process is important. We currently know very little about how they achieve this. Research with genetic model systems has revealed the existence of conserved genetic pathways and molecular processes that affect longevity. Most of these established model o...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2017.08.028
更新日期：2017-10-01 00:00:00
abstract：:The urinary collecting system is derived from an epithelial protrusion arising from the Wolffian duct called the ureteric bud (UB) by the signal from its inductive tissue, metanephric mesenchyme (MM). Targeted gene mutation studies have shown that several transcription factors and MM-secreted glial cell line-derived n...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/s1084-9521(03)00024-7
更新日期：2003-08-01 00:00:00
abstract：:The vast amount of recent progress made on the sequence of the human genome has allowed an unprecedented examination of cis-regulatory networks. These networks consist of functional elements such as promoters, enhancers, silencers, and insulators, and their coordinated activity is responsible for regulation of gene ex...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2009.06.005
更新日期：2009-09-01 00:00:00
abstract：:Conrad Waddington published an influential model for evolution in his 1942 paper, Canalization of Development and Inheritance of Acquired Characters. In this classic, albeit controversial, paper, he proposed that an unknown mechanism exists that conceals phenotypic variation until the organism is stressed. Recent stud...
journal_title：Seminars in cell & developmental biology
pub_type： 历史文章,杂志文章
doi：10.1016/j.semcdb.2003.09.024
更新日期：2003-10-01 00:00:00
abstract：:Stem cells have become one of the "buzz" topics in the last decade or so. One of the best systems to study adult stem cells in vivo is in the model organism, Drosophila melanogaster. One hundred years of genetic analysis, a sequenced and highly annotated genome and genomics makes this a difficult organism to avoid. Th...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2008.06.003
更新日期：2008-08-01 00:00:00
abstract：:The developmental processes that give rise to the animal body plan are exceedingly complex. Model systems such as Drosophila melanogaster have yielded profound insight into roles of conserved genes and genetic pathways in development. Drosophila development begins with the formation of sperm and eggs, and proceeds thr...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2009.02.006
更新日期：2009-07-01 00:00:00
abstract：:Two neurotrophins and their two receptors appear to regulate the survival of vestibular and cochlear neurons in the developing ear. Mice lacking either brain derived neurotrophic factor (BDNF) or its associated receptor, Trk B, show a severe reduction in the number of vestibular neurons and a loss of all innervation t...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：
更新日期：1997-01-01 00:00:00
abstract：:During development, epithelial cells in some tissues acquire a polarity orthogonal to their apical-basal axis. This polarity, referred to as planar cell polarity (PCP), or tissue polarity, is essential for the normal physiological function of many epithelia. Early studies of PCP focused on insect epithelia (Lawrence, ...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2009.08.001
更新日期：2009-10-01 00:00:00
abstract：:Cichlid fishes constitute one of the most species-rich families of vertebrates. In addition to complex social behaviour and morphological versatility, they are characterised by extensive diversity in colouration, both within and between species. Here, we review the cellular and molecular mechanisms underlying colour v...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2013.05.003
更新日期：2013-06-01 00:00:00
abstract：:Fibrillin microfibrils are extensible polymers that endow connective tissues with long-range elasticity and have widespread distributions in both elastic and non-elastic tissues. They act as a template for elastin deposition during elastic fibre formation and are essential for maintaining the integrity of tissues such...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2018.07.016
更新日期：2019-05-01 00:00:00
abstract：:Extracellular vesicles (EVs) act as carriers of molecular and oncogenic signatures present in subsets of tumour cells and tumour-associated stroma, and as mediators of intercellular communication. These processes likely involve cancer stem cells (CSCs). EVs represent a unique pathway of cellular export and cell-to-cel...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2015.02.011
更新日期：2015-04-01 00:00:00
abstract：:Vitamin A and its derivatives, the retinoids, have been implicated as important signaling molecules in vertebrate development, primarily due to numerous gain-of-function experiments involving treatment of embryos with exogenous retinoic acid. Collectively, the results from these experiments suggested that retinoids we...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章
doi：10.1006/scdb.1997.0165
更新日期：1997-08-01 00:00:00
abstract：:Anuran amphibians can regenerate the retina through differentiation of stem cells in the ciliary marginal zone and through transdifferentiation of the retinal pigmented epithelium. By contrast, the regeneration of the lens has been demonstrated only in larvae of species belonging to the Xenopus genus, where the lens r...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2008.11.015
更新日期：2009-07-01 00:00:00
abstract：:The hallmarks of cancer include multiple alterations in the physiological processes occurring in normal tissues, such as cell proliferation, apoptosis, and restricted cell migration. These aberrant behaviors are due to genetic and epigenetic changes that affect signaling pathways controlling cancer cells, as well as t...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2012.10.005
更新日期：2013-03-01 00:00:00
abstract：:Both cell cycle progression and the ubiquitin-proteasome system (UPS) that drives it are precisely regulated. Enzymatically, many ubiquitylation and degradation reactions have been characterized in in vitro systems, providing insights into the fundamental mechanisms of the UPS. Biologically, a range of degradation eve...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2012.01.015
更新日期：2012-07-01 00:00:00
abstract：:Lymphatic contractile dysfunction is central to a number of pathologies that affect millions of people worldwide. Due to its critical role in the process of inflammation, a dysfunctional lymphatic system also compromises the immune response, further exacerbating a number of inflammation related diseases. Despite the c...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2015.01.005
更新日期：2015-02-01 00:00:00
abstract：:Paramutation was initially described in maize and was defined as an epigenetic interaction between two alleles of a locus, through which one allele induces a heritable modification of the other allele without modifying the DNA sequence [1,2]. Thus it implies that the paramutated allele conserves its new properties on ...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2015.08.009
更新日期：2015-08-01 00:00:00
abstract：:Discovering how organisms and their proteins adapt to extreme conditions is a complicated process. Every condition has its own set of adaptations that make it uniquely stable in its environment. The purpose of our review is to discuss what is known in the extremophilic community about protein adaptations. To simplify ...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2017.12.016
更新日期：2018-12-01 00:00:00
abstract：:Clustered protocadherins mediate neuronal self-recognition and non-self discrimination-neuronal "barcoding"-which underpin neuronal self-avoidance in vertebrate neurons. Recent structural, biophysical, computational, and cell-based studies on protocadherin structure and function have led to a compelling molecular mode...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2017.07.023
更新日期：2017-09-01 00:00:00
abstract：:Plant oils represent an energy-rich and carbon-dense group of hydrophobic compounds. These oils are not only of economic interest, but also play important, fundamental roles in plant and algal growth and development. The subcellular storage compartments of plant lipids, referred to as lipid droplets (LDs), have long b...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2020.02.014
更新日期：2020-12-01 00:00:00
abstract：:IgE-mediated food allergy is a developing global health problem with prevalence rising at alarmingly fast rates. In this review, we discuss the interplay between genetics, epigenetics, and environmental exposures in the pathogenesis of food allergies. We aim to highlight the most recent evidence that suggests how epig...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2015.07.002
更新日期：2015-07-01 00:00:00
abstract：:Hepatic oval cell activation, proliferation, and differentiation has been observed under certain physiological conditions, mainly when the proliferation of existing hepatocytes has been inhibited followed by severe hepatic injury. Hepatic oval cells display a distinct phenotype and have been shown to be a bipotential ...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/s1084952102001271
更新日期：2002-12-01 00:00:00
abstract：:During nervous system development stem cell daughters must exit the proliferative cycle to adopt specific neural and glial fates and they must do so in the correct positions. Cell proliferation in the central nervous system occurs in neuroepithelia such as the neural retina and the ventricular zones. As cells are assi...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2003.09.002
更新日期：2004-02-01 00:00:00
abstract：:In mammals, sex determination defines the differentiation of the bipotential genital ridge into either testes or ovaries. Sry, the mammalian Y-chromosomal testis-determining gene, is a master regulator of male sex determination. It acts to switch the undifferentiated genital ridge towards testis development, triggerin...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2016.07.032
更新日期：2017-03-01 00:00:00
abstract：:During development, diffusible ligands, known as morphogens, are thought to move across fields of cells, regulating gene expression in a concentration dependent manner. The case for morphogens has been convincingly made for the Decapentapleigic (Dpp), Wingless (Wg) and Hedgehog (Hh) proteins in the Drosophila wing. In...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/s1084-9521(02)00014-9
更新日期：2002-04-01 00:00:00
abstract：:Since the first implication of the core planar cell polarity (PCP) pathway in stereocilia orientation of sensory hair cells in the mammalian cochlea, much has been written about this subject, in terms of understanding how this pathway can shape the mammalian hair cells and using the inner ear as a model system to unde...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2013.03.012
更新日期：2013-05-01 00:00:00
abstract：:Lipids are now widely considered to play a variety of important roles in T-cell mediated immunity, including serving as antigens. Lipid-based antigens are presented by a specialised group of glycoproteins termed CD1. In humans, three classes of CD1 molecules exist: group 1 (CD1a, CD1b, CD1c), group 2 (CD1d), and group...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2017.11.002
更新日期：2018-12-01 00:00:00
abstract：:Two neurotrophins and their two receptors appear to regulate the survival of vestibular and cochlear neurons in the developing ear. Mice lacking either brain derived neurotrophic factor (BDNF) or its associated receptor, Trk B, show a severe reduction in the number of vestibular neurons and a loss of all innervation t...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章
doi：10.1006/scdb.1997.0144
更新日期：1997-06-01 00:00:00
abstract：:Precise control of neural progenitor transformation into neural crest stem cells ensures proper craniofacial and head development. In the neural progenitor pool, SoxB factors play an essential role as cell fate determinants of neural development, whereas during neural crest stem cell formation, Sox2 plays a predominan...
journal_title：Seminars in cell & developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.semcdb.2016.08.035
更新日期：2017-03-01 00:00:00
