Abstract：
:Metastasis to the brain is a feared complication of systemic cancer, associated with significant morbidity and poor prognosis. A better understanding of the tumor metabolism might help us meet the challenges in controlling brain metastases. The study aims to characterize the metabolic profile of brain metastases of different origin using high resolution magic angle spinning (HR-MAS) magnetic resonance spectroscopy (MRS) to correlate the metabolic profiles to clinical and pathological information. Biopsy samples of human brain metastases (n = 49) were investigated. A significant correlation between lipid signals and necrosis in brain metastases was observed (p < 0.01), irrespective of their primary origin. The principal component analysis (PCA) showed that brain metastases from malignant melanomas cluster together, while lung carcinomas were metabolically heterogeneous and overlap with other subtypes. Metastatic melanomas have higher amounts of glycerophosphocholine than other brain metastases. A significant correlation between microscopically visible lipid droplets estimated by Nile Red staining and MR visible lipid signals was observed in metastatic lung carcinomas (p = 0.01), indicating that the proton MR visible lipid signals arise from cytoplasmic lipid droplets. MRS-based metabolomic profiling is a useful tool for exploring the metabolic profiles of metastatic brain tumors.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Sjøbakk TE,Vettukattil R,Gulati M,Gulati S,Lundgren S,Gribbestad IS,Torp SH,Bathen TFdoi
10.3390/ijms14012104subject
Has Abstractpub_date
2013-01-22 00:00:00pages
2104-18issue
1issn
1422-0067pii
ijms14012104journal_volume
14pub_type
杂志文章abstract：:Triple-negative breast cancer (TNBC) is characterized by the lack of immunohistochemical staining for estrogen receptors (ER), progesterone receptors (PR), and lack of overexpression or amplification of human epidermal growth factor receptor 2 (HER2). Our aim was to investigate the expression of transmembrane protease...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms140714659
更新日期：2013-07-12 00:00:00
abstract：:Although the application of cardioprotective ischaemia/reperfusion (I/R) stimuli after myocardial infarction (MI) is a promising concept for salvaging the myocardium, translation to a clinical scenario has not fulfilled expectations. We have previously shown that in pigs, ischaemic postconditioning (IPostC) reduces my...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20020344
更新日期：2019-01-15 00:00:00
abstract：:Almost all tumors are composed of a heterogeneous cell population, making them difficult to treat. A small cancer stem cell population with a low proliferation rate and a high tumorigenic potential is thought to be responsible for cancer development, metastasis and resistance to therapy. Stem cells were reported to be...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms15058169
更新日期：2014-05-09 00:00:00
abstract：:Chorea acanthocytosis (ChAc), an ultra-rare devastating neurodegenerative disease, is caused by mutations in the VPS13A gene, which encodes for the protein chorein. Affected patients suffer from chorea, orofacial dyskinesia, epilepsy, parkinsonism as well as peripheral neuropathy. Although medium spinal neurons of the...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21051797
更新日期：2020-03-05 00:00:00
abstract：:Glioblastoma is a highly aggressive primary brain tumour, renowned for its infiltrative growth and varied genetic profiles. The current treatment options are insufficient, and their off-target effects greatly reduce patient quality of life. The major challenge in improving glioblastoma diagnosis and treatment involves...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms18122576
更新日期：2017-11-30 00:00:00
abstract：:The phytohormone auxin regulates various developmental programs in plants, including cell growth, cell division and cell differentiation. The auxin efflux carriers are essential for the auxin transport. To show an involvement of auxin transporters in the coordination of fruit development in bitter gourd, a juicy fruit...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms18112343
更新日期：2017-11-06 00:00:00
abstract：:The environment surrounding chondrocytes changes drastically in osteoarthritis (OA). For instance, the osmolarity in cartilage (ranging from 350 to 460 mOsm in healthy tissue) decreases during the progression of OA, reaching 270 mOsm. The objective of this study was to evaluate how osmolarity influences human OA chond...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21020531
更新日期：2020-01-14 00:00:00
abstract：:Metastatic renal cell carcinoma (RCC) remains an important clinical issue; the 5-year survival rate of patients with metastasis is approximately 12%, while it is 93% in those with localized disease. There is evidence that blood cadmium and lead levels are elevated in RCC. The current studies were designed to assess th...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20246315
更新日期：2019-12-14 00:00:00
abstract：:Metabolic syndrome (MetS) is established as the combination of central obesity and different metabolic disturbances, such as insulin resistance, hypertension and dyslipidemia. This cluster of factors affects approximately 10%-50% of adults worldwide and the prevalence has been increasing in epidemic proportions over t...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms17111877
更新日期：2016-11-10 00:00:00
abstract：:Demanded as an essential trace element that supports cell growth and basic functions, iron can be harmful and cancerogenic though. By exchanging between its different oxidized forms, iron overload induces free radical formation, lipid peroxidation, DNA, and protein damages, leading to carcinogenesis or ferroptosis. Ir...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms20010095
更新日期：2018-12-27 00:00:00
abstract：:Hedgehog (Hh) proteins are prototypical morphogens known to regulate epithelial/mesenchymal interactions during embryonic development. In addition to its pivotal role in embryogenesis, the Hh signaling pathway may be recapitulated in post-natal life in a number of physiological and pathological conditions, including i...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms20215270
更新日期：2019-10-24 00:00:00
abstract：:Fresh produce is often a source of enterohaemorrhagic Escherichia coli (EHEC) outbreaks. Fimbriae are extracellular structures involved in cell-to-cell attachment and surface colonisation. F9 (Fml) fimbriae have been shown to be expressed at temperatures lower than 37 °C, implying a function beyond the mammalian host....
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21249720
更新日期：2020-12-19 00:00:00
abstract：:The complex physiology of eukaryotic cells is regulated through numerous mechanisms, including epigenetic changes and posttranslational modifications. The wide-ranging diversity of these mechanisms constitutes a way of dynamic regulation of the functionality of proteins, their activity, and their subcellular localizat...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms20225679
更新日期：2019-11-13 00:00:00
abstract：:Ventricular arrhythmia (VA) is a major component of sudden cardiac death (SCD). To investigate the expression of brain natriuretic peptide (BNP), endothelin-1 (ET-1), and transforming growth factor-beta 1 (TGF-β1) during VA, we established a rat model of VA induced by BaCl2 solution through a microinjector pump. PD142...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20235845
更新日期：2019-11-21 00:00:00
abstract：:The present work provides a comprehensive overview of the recent progress of research work toward developing new one dimensional (1-D) ceria (CeO(2)) nanomaterials. The review has been classified into three parts: the preparation procedures with identification of the existing different dimensional ceria nanomaterials,...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms11093226
更新日期：2010-09-13 00:00:00
abstract：BACKGROUND:Psoriasis is hallmarked by vascular dysfunction, arterial hypertension, and an increased risk for cardiovascular diseases. We have shown recently that skin-driven interleukin (IL)-17A expression promotes psoriasis-like disease in mice, and this is associated with vascular inflammation, vascular dysfunction, ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20174261
更新日期：2019-08-30 00:00:00
abstract：:SECONDARY WALL-ASSOCIATED NAC DOMAIN1 (SND1) is a master regulator of fibre secondary wall deposition in Arabidopsis thaliana (Arabidopsis), with homologs in other angiosperms and gymnosperms. However, it is poorly understood to what extent the fibre-specific regulation of the SND1 promoter, and that of its orthologs,...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20184623
更新日期：2019-09-18 00:00:00
abstract：:The impact of polyunsaturated fatty acid (PUFA) supplementation on phospholipase D (PLD) trafficking and activity in mast cells was investigated. The enrichment of mast cells with different PUFA including α-linolenic acid (LNA), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), linoleic acid (LA) or arachidonic...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms14059005
更新日期：2013-04-25 00:00:00
abstract：:The challenge of effectively delivering therapeutic agents to brain has led to an entire field of active research devoted to overcome the blood brain barrier (BBB) and efficiently deliver drugs to brain. This review focusses on exploring the facets of a novel platform designed for the delivery of drugs to brain. The p...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms17060806
更新日期：2016-05-25 00:00:00
abstract：:The aim of this study was to develop and evaluate matrix assisted LASER desorption ionization (MALDI) time-of-flight (TOF) mass spectrometry imaging (MSI) of blood smear. Integrated light microscope and MALDI IT-TOF mass spectrometer, together with a matrix sublimation device, were used for analysis of blood smears co...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms22020585
更新日期：2021-01-08 00:00:00
abstract：:Among popular crops, plum (Prunus domestica L.) has received special attention due to its health-promoting properties. The seasonality of this fruit makes it impossible to consume it throughout the year, so new products in a powder form may offer an alternative to fresh consumption and may be used as high-quality natu...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms18010176
更新日期：2017-01-17 00:00:00
abstract：:The emergence of multidrug resistance is always associated with more rapid tumor recurrence and metastasis. P-glycoprotein (P-gp), which is a well-known multidrug-efflux transporter, confers enhanced invasion ability in drug-resistant cells. Previous studies have shown that P-gp probably exerts its tumor-promoting fun...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms17101718
更新日期：2016-10-13 00:00:00
abstract：:Omega-3 fatty acids are important to pregnancy and neonatal development and health. One mechanism by which omega-3 fatty acids exert their protective effects is through serving as substrates for the generation of specialized pro-resolving lipid mediators (SPM) that potently limit and resolve inflammatory processes. We...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20184402
更新日期：2019-09-07 00:00:00
abstract：:Three-dimensional (3D) bioprinting is on the cusp of permitting the direct fabrication of artificial living tissue. Multicellular building blocks (bioinks) are dispensed layer by layer and scaled for the target construct. However, only a few materials are able to fulfill the considerable requirements for suitable bioi...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms17121976
更新日期：2016-11-25 00:00:00
abstract：:Thyroid cancer incidence has increased worldwide; however, investigations of thyroid cancer-related factors as potential prognosis markers remain insufficient. Secreted proteins from the cancer secretome are regulators of several molecular mechanisms and are, thereby, ideal candidates for potential markers. We aimed t...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21249537
更新日期：2020-12-15 00:00:00
abstract：:Copper-containing coordination compounds attract wide attention due to the redox activity and biogenicity of copper ions, providing multiple pathways of biological activity. The pharmacological properties of metal complexes can be fine-tuned by varying the nature of the ligand and donor atoms. Copper-containing coordi...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms21113965
更新日期：2020-05-31 00:00:00
abstract：:The eukaryotic and archaeal translation factor IF5A requires a post-translational hypusine modification, which is catalyzed by deoxyhypusine synthase (DHS) at a single lysine residue of IF5A with NAD+ and spermidine as cofactors, followed by hydroxylation to form hypusine. While human DHS catalyzed reactions have been...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21155509
更新日期：2020-07-31 00:00:00
abstract：:Cucumber green mottle mosaic virus (CGMMV) is a member of the genus Tobamovirus, which cause diseases in cucurbits, especially watermelon. In watermelon, symptoms develop on the whole plant, including leaves, stems, peduncles, and fruit. To better understand the molecular mechanisms of watermelon early responses to CG...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20030610
更新日期：2019-01-31 00:00:00
abstract：:X-ray diffraction and tension measurement experiments were conducted on rat left ventricular skinned fibers with or without "troponin-T treatment," which exchanges the endogenous troponin T/I/C complex with exogenous troponin-T. These experiments were performed to observe the structural changes in troponin-T within a ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21103520
更新日期：2020-05-15 00:00:00
abstract：:Idiopathic pulmonary fibrosis (IPF) is a progressive, fibrotic interstitial pneumonia with high mortality. Melatonin, a hormone predominantly secreted by the pineal gland, has been reported to participate in the process of IPF. However, the mechanisms underlying the effect of melatonin in pulmonary fibrosis have not b...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms19041118
更新日期：2018-04-09 00:00:00
