Abstract：
:Low temperature stress has a severe impact on the distribution, physiology, and survival of plants in their natural habitats. While numerous studies have focused on the physiological and molecular adjustments to low temperatures, this study provides evidence that cold induced physiological responses coincide with distinct ultrastructural alterations. Three plants from different evolutionary levels and habitats were investigated: The freshwater alga Micrasterias denticulata, the aquatic plant Lemna sp., and the nival plant Ranunculus glacialis. Ultrastructural alterations during low temperature stress were determined by the employment of 2-D transmission electron microscopy and 3-D reconstructions from focused ion beam-scanning electron microscopic series. With decreasing temperatures, increasing numbers of organelle contacts and particularly the fusion of mitochondria to 3-dimensional networks were observed. We assume that the increase or at least maintenance of respiration during low temperature stress is likely to be based on these mitochondrial interconnections. Moreover, it is shown that autophagy and degeneration processes accompany freezing stress in Lemna and R. glacialis. This might be an essential mechanism to recycle damaged cytoplasmic constituents to maintain the cellular metabolism during freezing stress.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Steiner P,Buchner O,Andosch A,Wanner G,Neuner G,Lütz-Meindl Udoi
10.3390/ijms21228753subject
Has Abstractpub_date
2020-11-19 00:00:00issue
22issn
1422-0067pii
ijms21228753journal_volume
21pub_type
杂志文章abstract：:Cholesteatoma is a destructive and expanding growth of keratinizing squamous epithelium in the middle ear or petrous apex. The molecular and cellular processes of the pathogenesis of acquired middle ear cholesteatoma have not been fully understood. In this study, comparative proteomic analysis was conducted to investi...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms140714439
更新日期：2013-07-11 00:00:00
abstract：:This study examined whether the conserved arginine cluster present within the 29-amino acid insert of the long form of the D₂ dopamine receptor (D2L-R) confers its predominant intracellular localization. We hypothesized that the conserved arginine cluster (RRR) located within the insert could act as an RXR-type endopl...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms17071152
更新日期：2016-07-19 00:00:00
abstract：:Leaf senescence is the last period of leaf growth and a dynamic procedure associated with its death. The adaptability of the plants to changing environments occurs thanks to leaf senescence. Hence, transcriptional profiling is important to figure out the exact mechanisms of inducing leaf senescence in a particular cro...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20071708
更新日期：2019-04-05 00:00:00
abstract：:This study reports the effect of Spilanthes acmella Murr. extracts on phenylephrine-induced contraction of rat thoracic aorta as well as their antioxidant activity. Results show that the extracts exert maximal vasorelaxations in a dose-dependent manner, but their effects are less than acetylcholine-induced nitric oxid...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms9122724
更新日期：2008-12-01 00:00:00
abstract：:The centromere, in which kinetochore proteins are assembled, plays an important role in the accurate congression and segregation of chromosomes during cell mitosis. Although the function of the centromere and kinetochore is conserved from monocentric to holocentric, the DNA sequences of the centromere and components o...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20235823
更新日期：2019-11-20 00:00:00
abstract：:In patients with glioblastoma, antiangiogenic therapy with bevacizumab (BEV) has been shown to improve progression-free survival (PFS), but not overall survival (OS). Especially in patients with an unusual infiltrative phenotype as seen in multifocal glioblastoma, the use of BEV therapy is still more controversial. Th...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms18112469
更新日期：2017-11-20 00:00:00
abstract：:Although butylidenephthalide (BP) is an efficient anticancer drug, its poor bioavailability renders it ineffective for treating drug-resistant brain tumors. However, this problem is overcome through the use of noninvasive delivery systems, including intranasal administration. Herein, the bioavailability, drug stabilit...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21124408
更新日期：2020-06-21 00:00:00
abstract：:Modern strategies in adipose tissue engineering (ATE) take advantage of the easy harvest, abundance and differentiation potential towards mesenchymal lineages of hADSCs. The controlled conversion of hADSCs to committed adipogenic precursors and further mature adipocytes formation is important for good long-term result...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms131215881
更新日期：2012-11-27 00:00:00
abstract：:The effective dose of irradiation to control pest mites in quarantine has been studied extensively, but the molecular mechanisms underlying the effects of the irradiation on mites are largely unknown. In this study, exposure to 400 Gy of γ rays had significant (p < 0.05) effects on the adult survival, fecundity and eg...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms161126004
更新日期：2015-11-11 00:00:00
abstract：:The progression of cancer is associated with increases in amino acid uptake by cancer cells. Upon their entry into cells through specific transporters, exogenous amino acids are used to synthesize proteins, nucleic acids and lipids and to generate ATP. The essential amino acid leucine is also important for maintaining...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms19082373
更新日期：2018-08-12 00:00:00
abstract：:Preterm birth (PTB) can be defined as the endpoint of a complex process that could be influenced by maternal and environmental factors. Epigenetics recently emerged as an interesting field of investigation since it represents an important mechanism of regulation. This study evaluates epigenetic impact of preterm birth...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21145044
更新日期：2020-07-17 00:00:00
abstract：:Alzheimer's disease (AD) is characterized by extracellular amyloid plaques composed of the β-amyloid peptides and intracellular neurofibrillary tangles and associates with progressive declines in memory and cognition. Several genes play important roles and regulate enzymes that produce a pathological accumulation of β...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms21041327
更新日期：2020-02-16 00:00:00
abstract：:Cardiovascular diseases (CVDs) are the leading causes of death worldwide. CVD pathophysiology is often characterized by increased stiffening of the heart muscle due to fibrosis, thus resulting in diminished cardiac function. Fibrosis can be caused by increased oxidative stress and inflammation, which is strongly linke...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms21165913
更新日期：2020-08-18 00:00:00
abstract：:Animal venoms are small natural mixtures highly enriched in bioactive components. They are known to target at least two important pharmacological classes of cell surface receptors: ion channels and G protein coupled receptors. Since sperm cells express a wide variety of ion channels and membrane receptors, required fo...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21207786
更新日期：2020-10-21 00:00:00
abstract：:Cancer represents a group of heterogeneous diseases characterized by uncontrolledgrowth and spread of abnormal cells, ultimately leading to death. Nanomedicine plays a significantrole in the development of nanodrugs, nanodevices, drug delivery systems and nanocarriers. Someof the major issues in the treatment of cance...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms19103264
更新日期：2018-10-20 00:00:00
abstract：:Oral cancer is a common cancer with poor prognosis. We evaluated the expression of PBK/TOPK (PDZ-binding kinase/T-LAK cell-originated protein kinase) and its prognostic significance in oral cancer. PBK/TOPK expression was measured by immunohistochemical staining of samples from 287 patients with oral cancer. The assoc...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms17071007
更新日期：2016-06-24 00:00:00
abstract：:The insulin/insulin-like growth factor (IGF) system in mammals comprises a dynamic network of proteins that modulate several biological processes such as development, cell growth, metabolism, and aging. Dysregulation of the insulin/IGF system has major implications for several pathological conditions such as diabetes ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms18091921
更新日期：2017-09-07 00:00:00
abstract：:The innate immune system has numerous mechanisms to fight against pathogens, including the formation of neutrophil extracellular traps (NETs). By spreading out chromatin, antimicrobial peptides and enzymes, neutrophils efficiently trap pathogens like bacteria and facilitate their elimination. During this process, high...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms19061679
更新日期：2018-06-05 00:00:00
abstract：:Type I collagen is the most abundant structural protein in all vertebrates, but its constitutive rate of synthesis is low due to long half-life of the protein (60-70 days). However, several hundred fold increased production of type I collagen is often seen in reparative or reactive fibrosis. The mechanism which is res...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms17030419
更新日期：2016-03-22 00:00:00
abstract：:The basic structural and functional unit of a living organism is a single cell. To understand the variability and to improve the biomedical requirement of a single cell, its analysis has become a key technique in biological and biomedical research. With a physical boundary of microchannels and microstructures, single ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms160922319
更新日期：2015-09-15 00:00:00
abstract：:Mitochondria have emerged as key players regarding cellular homeostasis not only due to their contribution regarding energy production through oxidative phosphorylation, but also due to their involvement in signaling, ion regulation, and programmed cell death. Indeed, current knowledge supports the notion that mitocho...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms18081821
更新日期：2017-08-22 00:00:00
abstract：:Aromatic isocyanides including isocyanonaphthalene derivatives have been proven to be very effective fluorescent sensors for the quantification of Hg(II) ions in water. Thus, the reaction of 1,5-isocyanoaminonaphthalene (1,5-ICAN), which is one of the most important members of this family, with water and HgCl2 as the ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21155588
更新日期：2020-08-04 00:00:00
abstract：:Angiogenesis is a complex biological process that plays a relevant role in sustaining the microenvironment, growth, and metastatic potential of several tumors, including non-small cell lung cancer (NSCLC). Bevacizumab was the first angiogenesis inhibitor approved for the treatment of patients with advanced NSCLC in co...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms18102021
更新日期：2017-09-21 00:00:00
abstract：:Benign prostate hyperplasia (BPH) is one of the most common urological problems in mid-aged to elderly men. Risk factors of BPH include family history, obesity, type 2 diabetes, and high oxidative stress. The main medication classes for BPH management are alpha blockers and 5α-reductase inhibitors. However, these conv...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms19041137
更新日期：2018-04-10 00:00:00
abstract：:Breast cancer is the main cause of morbidity and mortality in women worldwide. However, the molecular pathogenesis of breast cancer remains poorly defined due to its heterogeneity. Several studies have reported that G Protein-Coupled Estrogen Receptor 1 (GPER1) plays a crucial role in breast cancer progression, by bin...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms22010098
更新日期：2020-12-24 00:00:00
abstract：:Ceramides are key lipids in energetic-metabolic pathways and signaling cascades, modulating critical physiological functions in cells. While synthesis of ceramides is performed in endoplasmic reticulum (ER), which is altered under overnutrition conditions, proteins associated with ceramide metabolism are located on me...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms19092527
更新日期：2018-08-26 00:00:00
abstract：:Photodynamic inactivation (PDI) is a non-antibiotic option for the treatment of infectious diseases. Although Gram-positive bacteria have been shown to be highly susceptible to PDI, the inactivation of Gram-negative bacteria has been more challenging due to the impermeability properties of the outer membrane. In the p...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20010134
更新日期：2019-01-01 00:00:00
abstract：:The recent thriving development of biobanks and associated high-throughput phenotyping studies requires the elaboration of large-scale approaches for monitoring biological sample quality and compliance with standard protocols. We present a metabolomic investigation of human blood samples that delineates pitfalls and g...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms17122035
更新日期：2016-12-05 00:00:00
abstract：:For patients with end-stage renal disease requiring hemodialysis, their vascular access is both their lifeline and their Achilles heel. Despite being recommended as primary vascular access, the arteriovenous fistula (AVF) shows sub-optimal results, with about 50% of patients needing a revision during the year followin...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms20215387
更新日期：2019-10-29 00:00:00
abstract：:The usefulness of ginger in the food industry and pharmacotherapy is strictly related to its content of various components. The study elucidates the chemical composition of Zingiber officinale rhizomes cultivated on ecological plantations on Shikoku Island (Japan). GC-MS analysis of terpene content, LC-MS determinatio...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms18020452
更新日期：2017-02-20 00:00:00
