Abstract:
:Simple polyesters derived from poly(ethylene glycol)s and alpha, omega-dicarboxylic acids exhibit a broad range of activity in disrupting phospholipid membranes. This activity has been analyzed by measuring the release of liposome-encapsulated 5(6)-carboxy-fluorescein (CF). Comparison with an analogous monomeric surfactant, and with Triton X-100, demonstrates that macromolecular activity is a sensitive function of the size of the hydrophobic and hydrophilic segments within each repeat unit, and that high disrupting power is possible. In vitro studies with the human immunodeficiency virus type-1 have revealed that those polyesters which exhibit the highest membrane disrupting power also provide significant protection for human CD4+ lymphocytes against HIV-1. The potential for adjusting and utilizing these "supramolecular surfactants" in medicine is briefly discussed.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Regen SL,Jayasuriya N,Fabianowski Wdoi
10.1016/0006-291x(89)90031-4subject
Has Abstractpub_date
1989-03-15 00:00:00pages
566-71issue
2eissn
0006-291Xissn
1090-2104pii
0006-291X(89)90031-4journal_volume
159pub_type
杂志文章abstract::Alanine:glyoxylate aminotransferase has been reported to be present as the apo form in the peroxisomes and as the holo form in the mitochondria in chicken kidney. In contrast, the enzyme was found to be present as the holo form both in the peroxisomes and in the mitochondria in pigeon kidney, suggesting that birds are...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(91)90449-h
更新日期:1991-05-15 00:00:00
abstract::Serine palmitoyltransferase long chain-1 (SPTLC1), which is the rate-limiting enzyme for sphingolipid biosynthesis, has been indicated to be essential for carcinoma cell survival and proliferation in recent, but its role in the regulation of renal cell carcinoma (RCC) remains unknown. In the present study, we found th...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.09.073
更新日期:2019-11-26 00:00:00
abstract::The organisms have the capacity to sense and adapt to their surroundings for their life in a dynamic environment. In response to amino acid starvation, cells activate a rectifying physiological program, termed the integrated stress response (ISR), to restore cellular homeostasis. General controlled non-repressed (GCN2...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.09.120
更新日期:2020-12-17 00:00:00
abstract::Bordetella pertussis, causative agent of whooping cough, produces an adenylate cyclase toxin (CyaA) that is an important virulence factor. In the host cell, the adenylate cyclase domain of CyaA (CyaA-ACD) is activated upon association with calmodulin (CaM), an EF-hand protein comprised of N- and C-lobes (N-CaM and C-C...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2014.09.048
更新日期:2014-10-10 00:00:00
abstract::Chk2/hCds1, the human homolog of Saccharomyces cerevisiae Rad53p and Schizosaccharomyces pombe Cds1p, plays a critical role in the DNA damage checkpoint pathway. While several in vivo targets of Chk2 have been identified, the other target proteins of Chk2 responsible for multiple functions, such as cell cycle arrest, ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(03)00589-8
更新日期:2003-05-02 00:00:00
abstract::The role of the cytoplasmic domain of human Fc gamma RII in cellular activation was studied by transfecting P815 cells with different isoforms or deletion mutants of this receptor and then assaying protein tyrosine phosphorylation after crosslinking with anti-CD32 monoclonal antibodies. Fc gamma RIIa, but not Fc gamma...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.1775
更新日期:1994-06-15 00:00:00
abstract::C-type natriuretic peptide (CNP) which potently stimulates particulate guanylate cyclase activity in cultured rat vascular smooth muscle cells (VSMC) inhibited serum-induced DNA synthesis of the cells 10-fold more effectively than alpha-human atrial natriuretic peptide (alpha-hANP). The inhibitory effect of CNP was mi...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(91)90627-j
更新日期:1991-06-28 00:00:00
abstract::Loaded under whole cell patch-clamp configuration, the caged Ca2+ molecule DM-nitrophen was used to increase [Ca2+]i rapidly and reversibly in isolated Deiters cells of the organ of Corti. Photolysis of DM-nitrophen increased [Ca2+]i from resting concentrations of 20-50 nM to values above microM, as measured with the ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.1841
更新日期:1994-06-30 00:00:00
abstract::We have constructed a hybrid multicomponent dioxygenase gene cluster in which the bphA1 gene, coding for ISP alpha subunit of biphenyl dioxygenase from Pseudomonas pseudoalcaligenes KF707, has been replaced by the bedC1 gene encoding the corresponding subunit of benzene dioxygenase from P. putida ML2. Escherichia coli...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.2546
更新日期:1994-10-28 00:00:00
abstract::It is commonly assumed that plants do not possess consciousness. Since the criterion for this assumption is usually human consciousness this assumption represents a top down attitude. It is obvious that plants are not animals and using animal criteria of consciousness will lead to its rejection in plants. However usin...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.10.022
更新日期:2020-10-17 00:00:00
abstract::Groucho is a corepressor that forms a macromolecular complex for its corepressor activity, in which HDAC1 is an essential component for the modulation of chromatin structure and transcriptional repression of target genes. Here, we show that Groucho is covalently conjugated with small ubiquitin-related modifier-1 (SUMO...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2008.12.043
更新日期:2009-01-30 00:00:00
abstract::The core protein of the hepatitis C virus is derived from the N-terminal 191 amino acids of the viral polyprotein by proteolytic cleavage. In the current study, subcellular localizations of the HCV core and its beta-galactosidase fusion proteins in transfected cells were examined by indirect immunofluorescence and cyt...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.2804
更新日期:1994-12-15 00:00:00
abstract::The non-structural protein NS2B/NS3 serine-protease complex of the dengue virus (DENV) is required for the maturation of the viral polyprotein. Dissociation of the NS2B cofactor from NS3 diminishes the enzymatic activity of the complex. In this study, we identified a small molecule inhibitor that interferes with the i...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2013.09.078
更新日期:2013-10-25 00:00:00
abstract::The effects of substance P on cultured rabbit osteoclasts were investigated. The intracellular Ca(2+) concentration ([Ca(2+)](i)) which was monitored by the microfluorometric technique using fura-2, in osteoclasts elevated by the addition of substance P (0.3-5 microM). The EC(50) value of substance P was about 200 nM....
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1999.1220
更新日期:1999-08-27 00:00:00
abstract::Helodermin is a peptide from the venom of the lizard Heloderma suspectum (Gila Monster) showing a high degree of sequence similarity with VIP, PHI and secretin in its N-terminal moiety. The present data support the presence of peptide(s) closely related to helodermin in the brain, gut and salivary glands of rat. In ou...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(85)90422-x
更新日期:1985-07-16 00:00:00
abstract::We have previously demonstrated that the cyclin-dependent kinase inhibitor (Cki) Sic1 of Saccharomyces cerevisiae is phosphorylated in vitro by the CK2 kinase on Ser(201) residue. Moreover, we have collected evidence showing that Sic1 is functionally and structurally related to mammalian Cki p27(Kip1) and binds to the...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.08.224
更新日期:2005-11-04 00:00:00
abstract::Complementation studies, using fused cell lines from patients with peroxisomal disorders, have shown correction of defective plasmalogen synthesis and phytanic acid oxidation as well as an increase in the number of peroxisomes. At least six complementation groups have been reported. We demonstrate here that complement...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(05)80218-9
更新日期:1990-10-15 00:00:00
abstract::The apical ectodermal ridge (AER) controls limb outgrowth and patterning, such that its removal causes changes in mesodermal gene expression, cell death and limb truncation. Fibroblast growth factor (FGF) family members are expressed in the AER and can rescue limb bud outgrowth after AER removal. Cells localized under...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2006.10.186
更新日期:2007-01-05 00:00:00
abstract::The RNase gene superfamily combines functionally divergent proteins which share statistically significant sequence similarity. Known members assigned to this family include secretory and nonsecretory RNases; angiogenin; eosinophil cationic protein; eosinophil-derived neurotoxin; sialic-acid binding lectin and anti-tum...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(05)80980-5
更新日期:1992-05-29 00:00:00
abstract::A subclone termed as HSG-S8 was previously isolated from human salivary adenocarcinoma cell line, HSG, and proliferated in a serum-free culture. When HSG-S8 and parental HSG cells were transplanted into nude mice i.m. or s.c., both cells reproducibly induced adenocarcinoma. Furthermore, injection of HSG-S8 consistentl...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.1105
更新日期:1993-02-15 00:00:00
abstract::Cognitive impairment, acute or long-term, is a common complication in patients with severe bacterial infection. However, the underlying mechanisms are not fully verified and effective medicine is not available in clinics. Interferon gamma (IFNγ) is a pivotal cytokine against infection and is believed to be a tune in h...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.10.084
更新日期:2020-12-17 00:00:00
abstract::The expression of mRNA for three isozymes of cytochrome P450, CYP1A1, 1A2 and 3A3, was examined in biopsied samples of colon and rectum from five healthy subjects. Using RT-PCR, it was possible to detect the three CYP mRNA species at both sites in all samples examined. The expression of each CYP mRNA was site-specific...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1995.1668
更新日期:1995-05-16 00:00:00
abstract::This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2012.04.044
更新日期:2012-04-13 00:00:00
abstract::Streptokinase (SK), an extracellular protein of several haemolytic strains of Streptococcus, is utilized as a potent thrombolytic agent for the treatment of various myocardial disorders. Functional properties of SK remain unchanged when the first 13 N-terminal amino acid (aa) residues are removed. At present, role of ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1996.1504
更新日期:1996-10-03 00:00:00
abstract::It has been proposed that the members of the hsp70 major heat shock protein family in non-stressed cells participate in the intracellular transport of newly synthesized proteins and in maintaining such proteins in an unfolded state. Specific binding of other cellular proteins to hsp70 may play a role in hsp70 function...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(91)91771-4
更新日期:1991-07-15 00:00:00
abstract::A microbial secondary metabolite, arisostatins A (As-A), was originally discovered as a substance carrying the antibiotic activity against Gram-positive bacteria and shown to possess potent anti-tumor properties. The mechanism by which arisostatins A initiates apoptosis remains poorly understood. In the present report...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2003.07.009
更新日期:2003-09-19 00:00:00
abstract::Tumor necrosis factor-alpha (TNFα) is a multifunctional cytokine associated with inflammation, immune responses, and autoimmune diseases including rheumatoid arthritis, inflammatory bowel disease, and psoriasis. In the present study, we performed in vitro selection, systematic evolution of ligands by exponential enric...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.11.050
更新日期:2021-01-01 00:00:00
abstract::Different methylations of cloned human ornithine decarboxylase gene with restriction methylases in vitro before transfection greatly reduced the transient expression of ODC in Chinese hamster ovary cells. Single methylation of the gene with Hpa II (CCGG) methylase decreased the transiently expressed peak activity by a...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(89)92029-9
更新日期:1989-07-14 00:00:00
abstract::VDR regulates gene expression in a ligand-dependent way by binding to cognate enhancer elements of target gene promoters. The ligand-dependent activation function, AF-2, of VDR is thought to require transcriptional co-activators/co-repressors together with basal transcriptional machinery. Using a yeast two hybrid syst...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.6531
更新日期:1997-04-28 00:00:00
abstract::NF-kappaB family of transcription factors are involved in numerous cellular processes, including differentiation, proliferation, and inflammation. It was reported that hydroxycinnamic acid derivatives (HADs) are inhibitors of NF-kappaB activation. Rice bran oil contains a lot of phytosteryl ferulates, one of HADs. We ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.04.178
更新日期:2007-06-29 00:00:00