Abstract：
:Streptococcus pneumoniae (Pnc) is one of the leading pathogens in the world. Attachment to respiratory mucosal and lung surfaces is presumed to be involved in carriage, in disease and in the interaction with macrophages initiating innate immune responses. We hypothesized that bacterial adhesins mediate Pnc adhesion and host cell invasiveness. Initial studies have focused on the purification of cell wall and membrane proteins using fetuin affinity chromatography, SDS PAGE and western blot analysis probed with pooled healthy human sera. Using a Pnc clinical isolate, and a gpt mutant we have detected 10-lectin proteins isolated from the cell wall and adherent to the affinity column and 15 lectins isolated from membrane extracts. The fetuin-captured lectins agglutinated rabbit erythrocytes. 15 proteins in the cell wall and 18 proteins in the membrane that failed to bind to the fetuin column did not agglutinate rabbit erythrocytes. Further purification of the cell wall and membrane fetuin-separated fractions was achieved via anion exchange FPLC, was verified by SDS PAGE. These proteins maintained their agglutinating activity, and were subsequently tested for their ability to interfere with Pnc adhesion and invasion of epithelial cells in culture. Additional biochemical, immunological and molecular techniques are being used in attempt to identify relevant proteins.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Shani-Sekler M,Lifshitz S,Hillel I,Dagan R,Grossman N,Fleminger G,Mizrachi-Brauner Ydoi
10.1007/0-306-46831-X_6subject
Has Abstractpub_date
2000-01-01 00:00:00pages
61-71eissn
0065-2598issn
2214-8019journal_volume
479pub_type
杂志文章abstract：:Suppressor monocytes have been found in a number of human diseases most of which are associated with lymphopenia and deficiences in cell mediated immunity. In our studies both quantitative and qualitative differences in monocytes were detected in certain patients with advanced Hodgkin's disease or tuberculosis. In cer...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-8914-9_27
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abstract：:Mankind has always been interested in investigating and searching for solutions regarding the body deterioration due to factors such as disease, damage caused by trauma, toxins or radiation or just the process of ageing. Here, we summarize the history of scientific advances in solid organ transplantation, in the areas...
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pub_type： 历史文章,杂志文章
doi：10.1007/978-1-4614-2098-9_2
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abstract：:The mutational basis of APRT deficiency was studied in non-Japanese and Japanese patients. Fifteen different mutations have been identified altogether. Of these 4 were common, 6 were located in exon 3, and two at the exon 4-intron 4 junction. The common mutations were a missense mutation in exon 3 (asp65----val) and a...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-7703-4_16
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abstract：:The effects of adenosine and its derivatives on binding of alpha 2-adrenergic receptor ligands with homogenates of rat vas deferens were examined. Adenosine and 2-chloradenosine increased the amount of [3H]clonidine binding. ATP had a slight effect, but AMP and adenine had none. The effect of adenosine was inhibited b...
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doi：10.1007/978-1-4684-4805-4_11
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abstract：:Herein, we deploy an in silico pipeline of structural bioinformatics, thermodynamics, and molecular dynamics to investigate the role of cortisol in circadian rhythms, biorhythms, stress response, and even sleep disorders. Our study shows that high concentrations of cortisol intercalate in the minor groove of DNA. This...
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journal_title：Advances in experimental medicine and biology
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abstract：:The major central part of elastic ligaments is constituted by longitudinally orientated elastic fibres, each surrounded by a sheath of spirally orientated collagen fibrils with an intervening thin layer of microfibrils. In the terminal region of such ligaments the orientation of the collagen fibrils is longitudinal an...
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-0967-3_19
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abstract：:Peritoneal dialysis-associated peritonitis (PDAP) can be treated using very different regimens of antimicrobial administration, regimens that result in different pharmacokinetic outcomes and systemic exposure levels. Currently, there is no population-level pharmacokinetic framework germane to the treatment of PDAP. We...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4419-7046-6_40
更新日期：2011-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-77932-4_7
更新日期：2018-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-70630-6_8
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abstract：:Gastric polyps occur in 1-4 % of patients undergoing gastroscopy. Although most are sporadic, some gastric polyps are part of an underlying hereditary syndrome. Gastric polyps can be seen in each of the well-known gastrointestinal polyposis syndromes, but also in Lynch syndrome and in several rare not primarily gastro...
journal_title：Advances in experimental medicine and biology
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doi：10.1007/978-3-319-41388-4_17
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abstract：:Erythrocyte phosphoribosylpyrophosphate availability for adenine was measured by silicon oil method previously described. The homozygotes of Japanese type APRT deficiency (n = 6, from 4 families) showed 4.3 +/- 2.7% (mean +/- standard deviation) of adenine PRPP availability and the heterozygotes (n = 5) showed 86.0 +/...
journal_title：Advances in experimental medicine and biology
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journal_title：Advances in experimental medicine and biology
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pub_type： 杂志文章
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abstract：:From the biochemical and developmental data in the literature, there appears to be some specific relationship of gangliosides to synapses. Whether the concentration of polysialo-gangliosides is located in the immediately pre-synaptic part of the neuronal plasma membrane is not known. There are many unanswered question...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
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abstract：:The first decade of the twenty-first century witnessed the presence and light microscopic, immunophenotypic, and ultrastructural characterization of interstitial Cajal-like cells (coined as 'telocytes') in virtually every extragastrointestinal site of the human body by Laurentiu M. Popescu and his co-workers. Not surp...
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abstract：:Acid-sensing ion channels (ASICs), a novel family of proton-gated amiloride-sensitive cation channels, are expressed primarily in neurons of peripheral sensory and central nervous systems. Recent studies have shown that activation of ASICs, particularly the ASIC1a channels, plays a critical role in neuronal injury ass...
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abstract：:Cytogenetic discoveries of balanced translocations in soft tissue tumors have opened the way to molecular genetic definition of these translocations as gene fusions from the late 1980s. Many sarcomas are known to have such fusions, and the demonstration of the fusion transcripts in tumor tissue is of great value in sp...
journal_title：Advances in experimental medicine and biology
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doi：10.1007/978-1-4020-5133-3_10
更新日期：2006-01-01 00:00:00
abstract：:There is no doubt that feeding and nutrient availability modify the metabolism through hormonal changes. It is otherwise interesting to better define the influence of the imposed or freely chosen meal distribution during the day; in fact the daily feed intake in a relatively short time, namely during the daylight, see...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/0-306-46832-8_27
更新日期：2000-01-01 00:00:00
abstract：:During the last 5 years at least four new types of colonisation factors have been described in association with porcine postweaning diarrhea and edema disease strains of E. coli. Recently, evidence was presented that these fimbrial factors are closely related to each other, and therefore the common denomination F18 wa...
journal_title：Advances in experimental medicine and biology
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doi：10.1007/978-1-4899-1828-4_26
更新日期：1997-01-01 00:00:00
