Abstract:
:Marine environments harbor a wide range of microorganisms from the three domains of life. These microorganisms have great potential to enable discovery of new enzymes and bioactive compounds for industrial use. However, only ~1% of microorganisms from the environment can currently be identified through cultured isolates, limiting the discovery of new compounds. To overcome this limitation, a metagenomics approach has been widely adopted for biodiversity studies on samples from marine environments. In this study, we screened metagenomes in order to estimate the potential for new natural compound synthesis mediated by diversity in the Polyketide Synthase (PKS) and Nonribosomal Peptide Synthetase (NRPS) genes. The samples were collected from the Praia dos Anjos (Angel's Beach) surface water-Arraial do Cabo (Rio de Janeiro state, Brazil), an environment affected by upwelling. In order to evaluate the potential for screening natural products in Arraial do Cabo samples, we used KS (keto-synthase) and C (condensation) domains (from PKS and NRPS, respectively) to build Hidden Markov Models (HMM) models. From both samples, a total of 84 KS and 46 C novel domain sequences were obtained, showing the potential of this environment for the discovery of new genes of biotechnological interest. These domains were classified by phylogenetic analysis and this was the first study conducted to screen PKS and NRPS genes in an upwelling affected sample.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Cuadrat RR,Cury JC,Dávila AMdoi
10.3390/ijms161226101subject
Has Abstractpub_date
2015-11-27 00:00:00pages
28285-95issue
12issn
1422-0067pii
ijms161226101journal_volume
16pub_type
杂志文章abstract::Interferons (IFNs) are very powerful cytokines, which play a key role in combatting pathogen infections by controlling inflammation and immune response by directly inducing anti-pathogen molecular countermeasures. There are three classes of IFNs: type I, type II and type III. While type II IFN is specific for immune c...
journal_title:International journal of molecular sciences
pub_type: 杂志文章,评审
doi:10.3390/ijms20061445
更新日期:2019-03-21 00:00:00
abstract::Rotator cuff lesion with shoulder stiffness is a major cause of shoulder pain and motionlessness. Subacromial bursa fibrosis is a prominent pathological feature of the shoulder disorder. MicroRNA-29a (miR-29a) regulates fibrosis in various tissues; however, the miR-29a action to subacromial bursa fibrosis remains elus...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms20225742
更新日期:2019-11-15 00:00:00
abstract::Past research has demonstrated that oestrogenic compounds produce strand breaks in the DNA of sperm and lymphocytes via reactive oxygen species (ROS). In the current investigation, sperm and lymphocytes were treated in vitro with oestrogenic compounds (diethylstilboestrol, progesterone, 17β-oestradiol, noradrenaline a...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms12052783
更新日期:2011-01-01 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::Harnessing melanins to scavenge free radicals in vivo may yield treatment methods for inflammatory disorders. Furthermore, elucidation of the mechanism underlying melanin-mediated suppression of free radicals, which is yet unclear, is warranted. Herein, we chemically synthesized melanin-mimetic nanoparticles (MeNPs) a...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms19082309
更新日期:2018-08-07 00:00:00
abstract::Due to their large spectrum of bioactive properties, much attention has recently been drawn to phlorotannins-i.e., phenolic compounds characteristic from brown macroalgae. This study aimed to evaluate the antioxidant and anti-inflammatory properties of F. vesiculosus phlorotannin extracts and purified fractions. Overa...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms21186897
更新日期:2020-09-20 00:00:00
abstract::Breast cancer is the most common cancer type among women worldwide. With breast cancer patients and survivors being reported to experience a repertoire of symptoms that are detrimental to their quality of life, the development of breast cancer treatment strategies that are effective with minimal side effects is theref...
journal_title:International journal of molecular sciences
pub_type: 杂志文章,评审
doi:10.3390/ijms18112423
更新日期:2017-11-15 00:00:00
abstract::Plants have evolved a sophisticated innate immune system to cope with a diverse range of phytopathogens and insect herbivores. Plasma-membrane-localized pattern recognition receptors (PRRs), such as receptor-like kinases (RLK), recognize special signals, pathogen- or damage-associated molecular patterns (PAMPs or DAMP...
journal_title:International journal of molecular sciences
pub_type: 杂志文章,评审
doi:10.3390/ijms20184343
更新日期:2019-09-05 00:00:00
abstract::Tumor angiogenesis is one of the major hallmarks of tumor progression. Nobiletin is a natural flavonoid isolated from citrus peel that has anti-angiogenic activity. Steroid receptor coactivator (Src) is an intracellular tyrosine kinase so that focal adhesion kinase (FAK) binds to Src to play a role in tumor angiogenes...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms18050935
更新日期:2017-04-30 00:00:00
abstract::MET-amplified gastric cancer cells are extremely sensitive to MET inhibition in vitro, whereas clinical efficacy of MET inhibitors is disappointing. The compensatory activation of other oncogenic growth factor receptors may serve as an underlying mechanism of resistance. In this study, we analyzed the role of HER rece...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms22010082
更新日期:2020-12-23 00:00:00
abstract::Frizzled receptors (FZDs) are a family of seven-span transmembrane receptors with hallmarks of G protein-coupled receptors (GPCRs) that serve as receptors for secreted Wingless-type (WNT) ligands in the WNT signaling pathway. Functionally, FZDs play crucial roles in regulating cell polarity, embryonic development, cel...
journal_title:International journal of molecular sciences
pub_type: 杂志文章,评审
doi:10.3390/ijms19051543
更新日期:2018-05-22 00:00:00
abstract::Inonotus obliquus is an edible mushroom and also a remedy against various diseases, especially metabolic syndrome. In this paper we report the actions of an ethanol extract of I. obliquus (IOE) against hyperuricemia in hyperuricemic mice, and the screen of bioactives. The extract (IOE) was prepared by extracting I. ob...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms19103222
更新日期:2018-10-18 00:00:00
abstract::The aryl hydrocarbon receptor (AhR) is a ligand-dependent transcription factor that mediates the biological and toxicological effects of halogenated aromatic hydrocarbons, such as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). When activated by dioxin, the cytosolic AhR protein complex translocates into the nucleus and d...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms15046475
更新日期:2014-04-16 00:00:00
abstract::The effects of thyroid hormone disrupting chemicals (THDCs) on eye development of zebrafish were investigated. We expected THDC exposure to cause transcriptional changes of vision-related genes, which find their phenotypic anchoring in eye malformations and dysfunction, as observed in our previous studies. Zebrafish w...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms20071543
更新日期:2019-03-27 00:00:00
abstract::The TEAD family of transcription factors is necessary for developmental processes. The family members contain a TEA domain for the binding with DNA elements and a transactivation domain for the interaction with transcription coactivators. TEAD proteins are required for the participation of coactivators to transmit the...
journal_title:International journal of molecular sciences
pub_type: 杂志文章,评审
doi:10.3390/ijms17010138
更新日期:2016-01-21 00:00:00
abstract::Recombinant human fibroblast growth factor 10 (rhFGF-10) is frequently used to treat patients with skin injuries. It can also promote hair growth. However, the effective application of rhFGF-10 is limited because of its poor stability and transdermal absorption. In this study, polymerase chain reaction (PCR) and South...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms18102177
更新日期:2017-10-18 00:00:00
abstract::Colon cancer constitutes 33% of all cancer cases in humans and the majority of patients with metastatic colon cancer still have poor prognosis. An important role in cancer development is the communication between cancer and normal cells. This may occur, among others, through extracellular vesicles (including microvesi...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms21051826
更新日期:2020-03-06 00:00:00
abstract::We recently isolated stem cells derived from the brain of a bovine fetus, utilizing a particular mechanical separation method. After improving our experimental conditions, we obtained neural stem cells using an optimized culture medium system. The cells were expanded, established in continuous cell culture and used fo...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms16035990
更新日期:2015-03-13 00:00:00
abstract::Docking-i.e., interaction of a small molecule (ligand) with a proteic structure (receptor)-represents the ground of drug action mechanism of the vast majority of bioactive chemicals. Ligand and receptor accommodate their geometry and energy, within this interaction, in the benefit of receptor-ligand complex. In an ind...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms18071377
更新日期:2017-06-27 00:00:00
abstract::The adverse prognosis of most patients with ovarian cancer is related to recurrent disease caused by resistance to chemotherapeutic and targeted therapeutics. Besides their direct activity against tumor cells, monoclonal antibodies and tyrosine kinase inhibitors (TKIs) also influence the antitumoral activity of immune...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms20194693
更新日期:2019-09-22 00:00:00
abstract::Osteoarthritis (OA) affects the integrity of the entire joint including the synovium. The most abundant cells in the synovium are fibroblasts (SF). Excessive mechanical loading might contribute to OA pathogenesis. Here, we investigate the effects of mechanical loading on SF derived from non-OA (N-SF) and OA patients (...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms20030585
更新日期:2019-01-30 00:00:00
abstract::Roots anchor plants and take up water and nutrients from the soil; therefore, root development strongly affects plant growth and productivity. Moreover, increasing evidence indicates that root development is deeply involved in plant tolerance to abiotic stresses such as drought and salinity. These findings suggest tha...
journal_title:International journal of molecular sciences
pub_type: 杂志文章,评审
doi:10.3390/ijms21051807
更新日期:2020-03-06 00:00:00
abstract::Estrogen nuclear receptors, represented by the canonical forms ERα66 and ERβ1, are the main mediators of the estrogen-dependent pathophysiology in mammals. However, numerous isoforms have been identified, stimulating unconventional estrogen response pathways leading to complex cellular and tissue responses. The estrog...
journal_title:International journal of molecular sciences
pub_type: 杂志文章,评审
doi:10.3390/ijms21114116
更新日期:2020-06-09 00:00:00
abstract::Ruscogenin, an important steroid sapogenin derived from Ophiopogon japonicus, has been shown to inhibit cerebral ischemic injury. However, its potential molecular action on blood-brain barrier (BBB) dysfunction after stroke remains unclear. This study aimed to investigate the effects of ruscogenin on BBB dysfunction a...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms17091418
更新日期:2016-08-29 00:00:00
abstract::Tissues in the body are hierarchically structured composite materials with tissue-specific properties. Urea self-assembles via hydrogen bonding interactions into crystalline supracolloidal assemblies that can be used to impart macroscopic pores to polymer-based tissue scaffolds. In this communication, we explain the s...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms160920511
更新日期:2015-08-28 00:00:00
abstract::Transcriptome profiling of 3D models compared to 2D models in various cancer cell lines shows differential expression of TGF-β-mediated and cell adhesion pathways. Presence of TGF-β in these cell lines shows an increased invasion potential which is specific to cell type. In the present study, we identified exogenous a...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms20143568
更新日期:2019-07-22 00:00:00
abstract::MicroRNAs (miRNAs) act as negative regulators of gene expression in the cytoplasm. Previous studies have identified the presence of miRNAs in the nucleus. Here we study human breast cancer-derived cell-lines (MCF-7 and MDA-MB-231) and a non-tumorigenic cell-line (MCF-10A) and compare their miRNA sequences at the splic...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms21218132
更新日期:2020-10-30 00:00:00
abstract::Chemerin (CHEM) may act as an important link integrating energy homeostasis and reproductive functions of females, and its actions are mediated by three receptors: chemokine-like receptor 1 (CMKLR1), G protein-coupled receptor 1 (GPR1), and C-C motif chemokine receptor-like 2 (CCRL2). The aim of the current study was ...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms20163887
更新日期:2019-08-09 00:00:00
abstract::Diabetes and respiratory diseases are frequently comorbid conditions. However, the mechanistic links between hyperglycemia and lung dysfunction are not entirely understood. This study examined the effects of high sucrose intake on lung mechanics and alveolar septal composition and tested voluntary activity as an inter...
journal_title:International journal of molecular sciences
pub_type: 杂志文章
doi:10.3390/ijms20102438
更新日期:2019-05-17 00:00:00
abstract::Inflammation is a complex response of the body to exogenous and endogenous insults. Chronic and systemic diseases are attributed to uncontrolled inflammation. Molecules involved in the initiation of inflammation are very well studied while pathways regulating its resolution are insufficiently investigated. Approaches ...
journal_title:International journal of molecular sciences
pub_type: 杂志文章,评审
doi:10.3390/ijms18030476
更新日期:2017-02-23 00:00:00