Abstract：
:HSP-1/2 and PDC-109 belong to a family of fibronectin type II proteins, present in high concentrations in bovine and equine seminal plasma, respectively. These proteins act as extracellular small heat shock proteins and protect target/client proteins against various kinds of stress. They also exhibit characteristic binding to choline phospholipids present on the sperm plasma membrane and cause efflux of choline phospholipids and cholesterol, resulting in sperm capacitation. The current study demonstrates that hypersaline conditions decrease the chaperone-like activity (CLA) of HSP-1/2. On the other hand, lipoprotein aggregates formed by the binding of choline phospholipids to this protein exhibit higher CLA than HSP-1/2 alone in vitro; the increased CLA can be correlated to the increased surface hydrophobicity of the lipoprotein aggregates. Presence of cholesterol in the membrane was found to decrease such enhancement in the CLA. We have also observed that salinity of the medium affects the chaperone activity by altering the polydisperse nature of the HSP-1/2. Together these results indicate that hydrophobicity and polydispersity are important for the chaperone-like activity of HSP-1/2 and factors that can alter these properties of HSP-1/2 can modulate its CLA. Further, studies on PDC-109 show that the chaperone-like and membrane-destabilizing activities of this protein are differentially affected by change in pH.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Kumar CS,Singh BP,Alim S,Swamy MJdoi
10.1007/978-981-13-3065-0_5subject
Has Abstractpub_date
2018-01-01 00:00:00pages
53-68eissn
0065-2598issn
2214-8019journal_volume
1112pub_type
杂志文章abstract：:SFHS modified by covalent incorporation of pyridoxal phosphate using NaCNBH3 as reducing agent had P50 values of 21-25mm Hg, and was insensitive to the addition of BPG. The Hill slope of the modified product was 2.34, demonstrating good functional cooperativity of the subunits. Oxygen carrying capacity, calculated as ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5643-1_41
更新日期：1989-01-01 00:00:00
abstract：:The structural similarity of cholesterol oxidation products (COP) to native cholesterol and their xenobiotic effects prompt researchers to study the long-term effects of the assimilation of these compounds into our tissues. COP are present in our food system. The level of exposure changes as our food products and our ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：
更新日期：1999-01-01 00:00:00
abstract：:Bezoar Bovis (BB:dried cattle gallbladder stones) has been used empirically in Asia for over 3000 years to treat heart and liver disorders. Yet its therapeutic potential remains unexplored by Western researchers. The aim of this study has been to clarify the actions of BB on cultured cardiomyocytes and to identify its...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-0-387-75681-3_10
更新日期：2009-01-01 00:00:00
abstract：:Fat layer thickness (FLT) affects near infrared spectroscopy (NIRS) measurement. The aim of this study was to determine an indicator of muscle function with less influence of FLT, even without normalization, by comparing muscle O2 dynamics during exercise in subjects with similar physical characteristics except for FL...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-91287-5_16
更新日期：2018-01-01 00:00:00
abstract：:Screening of chromogenic peptide substrates have shown that FXIIa readily splits substrates of D-Pro-Phe-Arg-pNA (S-2302) and -Gly-Arg-pNA (e.g. S-2222) types. The latter type is preferred in a system where kallikrein is present. By using the substrate S-2222 a method for the determination of beta FXIIa inhibitors has...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-0154-8_7
更新日期：1986-01-01 00:00:00
abstract：:The role of prolactin and of estradiol and progesterone in the control of the biosynthetic and secretory activity of TIDA neurons has been investigated in the following animal models: young female rats, aged female rats, and young male rats. The indices of TIDA neuronal function employed were a) mass of TH in neurites...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-5799-5_1
更新日期：1990-01-01 00:00:00
abstract：:For many years it has been known that developing cells of Dictyostelium discoideum show periodic surges as they aggregate. When it was discovered that the cells were responding chemotactically to cAMP gradients produced within the populations, experiments were carried out that demonstrated similar periodic changes in ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-09794-7_3
更新日期：2008-01-01 00:00:00
abstract：:Extracellular free sodium (Na+)o and calcium (Ca2+)o concentration changes were measured in the rat motor cortex, using ion-selective microelectrodes. During ionophoretic applications of excitatory amino acids, decreases in (Na2+)o and in (Ca2+)o were observed. Ca2+ signals were not or very little modified by applicat...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-7971-3_33
更新日期：1986-01-01 00:00:00
abstract：:The formation of meat mutagens has been studied the last 10 years by carrying out modeling and meat cooking experiments in parallel. During this time, the list of meat mutagens has been growing, and continues to grow. The meat mutagens are usually produced in the crust of animal foods during frying, broiling, and baki...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4899-2626-5_7
更新日期：1991-01-01 00:00:00
abstract：:In studies designed to determine the respective functional roles of two bulbospinal monoaminergic pathways to sympathetic preganglionic neurons, both L-dopa and precursors of 5-HT depressed transmission through excitatory spinal reflex and bulbospinal sympathetic pathways. Transmission through spinal reflex pathways w...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-2511-6_13
更新日期：1977-01-01 00:00:00
abstract：:The solar ultraviolet-B (UVB)/vitamin D/cancer hypothesis was proposed by the brothers Cedric and Frank Garland in 1980. In 2002, the list was increased to 15 types of cancer using data in the 1999 version of the atlas of cancer mortality rates in the United States. Ecological studies of cancer incidence and/or mortal...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4939-0437-2_4
更新日期：2014-01-01 00:00:00
abstract：:Permethylated N-trifluoroacetyl hexosamine containing oligosaccharide alditols are favorable for analysis by mass spectrometry. Electron impact and fast atom bombardment mass spectra of these derivatives are characterized by strong primary and secondary fragments in which a positive charge is localized on the N-triflu...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4613-1663-3_35
更新日期：1988-01-01 00:00:00
abstract：:This chapter represents a summary of the findings from the Yersinia enterocolitica strain 8081 whole genome sequence and the associated microarray analysis. Section 1 & 2 provide an introduction to the species and an overview of the general features of the genome. Section 3 identifies important regions within the geno...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-72124-8_1
更新日期：2007-01-01 00:00:00
abstract：:The use of cell fusion has been applied to the development of immunotherapy cancer vaccines. This has typically involved the fusion of dendritic cells and tumor cells. The resultant hybrid uses the specialized antigen presentation properties supplied by the dendritic cell fusion partner to present tumor antigens, both...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-94-007-0763-4_11
更新日期：2011-01-01 00:00:00
abstract：:Therapeutic monoclonal antibodies (mAb) have changed the landscape of cancer therapy. With advances in the understanding of tumour biology and its microenvironment, different categories of mAbs have been developed; a first category is directed against tumour cells themselves, a second one comprises antibodies blocking...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-030-50224-9_9
更新日期：2020-01-01 00:00:00
abstract：:1. Immunological quantitation of the HPRT proteins, together with DNA and RNA studies have defined further the heterogeneous nature of HPRT-deficiency in our patients. 2. These studies have dictated possible approaches for further characterisation of the HPRT enzyme in our patients. In the two Lesch-Nyhan patients, bo...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5673-8_24
更新日期：1989-01-01 00:00:00
abstract：:Binding of mammalian sperm to the zona pellucida and the induction of the acrosome reaction are prerequisites for successful oocyte fertilization. In the mouse model, the zona pellucida consists of three sulfated glycoproteins, ZP1, ZP2, and ZP3. Zona pellucida proteins are secreted to form a filamentous zona matrix i...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:Klebsiella pneumoniae is one of the most important hospital pathogens, particularly concerning the multidrug-resistant strain ESBL+. The aim of this study was to evaluate nosocomial infections with K. pneumoniae ESBL+ in the context of infection location, risk factors, and prognosis. This hospital study was conducted ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/5584_2017_38
更新日期：2017-01-01 00:00:00
abstract：:The role of CD4+ T cells in altering the activity of cytotoxic T lymphocytes (CTL) during infection of the central nervous system (CNS) by the neuroptropic JHMV strain of mouse hepatitis virus was examined. Adoptive transfer of in vitro activated CTL into CD4-depleted and control recipients showed that CTL were not ef...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-5331-1_53
更新日期：1998-01-01 00:00:00
abstract：:Advances in the design of cochlear implants (CIs), as well as improved CI surgical techniques, have led to an increase in the number of patients who retain some residual low-frequency acoustic hearing in the implanted ear. Many of these patients also possess some hearing in the unimplanted ear. Although their low-freq...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4614-1590-9_28
更新日期：2013-01-01 00:00:00
abstract：:The process of creating a translation-competent mRNA is highly complex and involves numerous steps including transcription, splicing, addition of modifications, and, finally, export to the cytoplasm. Historically, much of the research on regulation of gene expression at the level of the mRNA has been focused on either...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-31434-7_2
更新日期：2019-01-01 00:00:00
abstract：:The metabolic properties of cancer cells have been widely accepted as a hallmark of cancer for a number of years and have shown to be of critical importance in tumour development. It is generally accepted that tumour cells exhibit a more glycolytic phenotype than normal cells. In this study, we investigate the bioener...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4939-3023-4_32
更新日期：2016-01-01 00:00:00
abstract：:Recruitment of neutrophils to sites of inflammation is now believed to occur through an initial rolling interaction at the luminal surface of activated endothelium and is mediated by a class of mammalian lectins referred to as the selectins. Selectins recognize carbohydrate determinants on co-receptors. It is generall...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4615-1885-3_31
更新日期：1995-01-01 00:00:00
abstract：:Neuronal ceroid lipofuscinosis (NCL) is the most common group of neurogenetic storage diseases typically beginning in childhood. The juvenile form (JNCL), also known as Batten disease, is the most common form. Vision-related problems are often an early sign, appearing prior to motor and mental deficits. We have previo...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-75402-4_50
更新日期：2018-01-01 00:00:00
abstract：:Plasma renin activity, blood angiotensin I, urinary kallikrein and blood bradykinin levels have been measured concurrently in rats over a range of daily sodium intake. Plasma renin activity, blood angiotensin I levels and urinary kallikrein were significantly increased by the low sodium diet (0.02 mmole per day). Brad...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:Studies have shown that the renal tubular epithelium adapts to alterations in the sulfur amino acid composition of the diet. The renal adaptive response has been described in man, mouse, rat, dog, and pig. The observed phenomenon involves increased or decreased initial rate activity of the NaCl-dependent taurine trans...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4899-0117-0_33
更新日期：1998-01-01 00:00:00
abstract：:The oral microbiota represents an important part of the human microbiota, and includes several hundred to several thousand diverse species. It is a normal part of the oral cavity and has an important function to protect against colonization of extrinsic bacteria which could affect systemic health. On the other hand, t...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-31248-4_4
更新日期：2016-01-01 00:00:00
abstract：:To investigate whether altered renal medullary prostaglandin (PG) synthesis is involved in the development of hypertension in spontaneously hypertensive rats (SHR), we compared the capacity of PGE2 synthesis in cultured renal papillary collecting tubule cells from young (4-week-old) and aged (16-week-old) SHR and cont...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-9546-5_83
更新日期：1989-01-01 00:00:00
abstract：:We present a review that considers the regulation of ovarian function by the ovarian renin-angiotensin system. Evidence is presented that shows the ovarian renin-angiotensin system can regulate normal ovarian function by paracrine and intracrine mechanisms. In addition, the complexity that is inherent in the renin-ang...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：
更新日期：1995-01-01 00:00:00
abstract：:The in-depth characterization of sex differences relevant to human physiology requires the judicious use of a variety of animal models and human clinical data. Nonhuman primates (NHPs) represent an important experimental system that bridges rodent studies and clinical investigations. NHP studies have been especially u...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-70178-3_24
更新日期：2017-01-01 00:00:00
