摘要:
The present invention relates to methods to identify substances which affect bacterial cell division by interfering with the function of LOPl, comprising bringing into contact a purified protein selected from the group: FtsZ, FtsQ, FtsL, FtsI and FtsN; with purified LOPl protein and then assaying the formation of complexes between LOPl and the selected purified protein in the presence and absence of a substance to be tested and then selecting substances from step b) which affect the formation of complexes when present. The present invention also relates to inhibitors of the activity and expression of LOP 1
摘要:
A method for keeping leukocytes alive ex vivo or in vitro , comprising maintaining the leukocytes in a medium comprising from 3 to 10 mM of glucose, in hypoxic conditions with P(02) ≤ 10 mM Hg.
摘要:
The present invention relates to a conjugate comprising an oligo- or polysaccharide selected from the group consisting of: (X) x -{BCDA} n -(Y) y (X) x -{CDAB} n -(Y) y (X) x -{DABC} n -(Y) y (X) x -{ABCD}n-(Y) y wherein A, B, C, D, X and Y, x, y and n are as defined in claim 1, said oligo- or polysaccharide being bound to a carrier.
摘要:
The invention relates to polypeptides, defined through a consensus sequence, having a length from 10 to 80 amino-acid residues, and whose polypeptidic sequence comprises or consists of the consensus sequence P1 (X a )P3(X b )P5(X c )P6(X d )P7, presenting specific patterns. The polypeptides of the invention target glycosylated Muc2 proteins. The invention also relates to methods of synthesis of such polypeptides, to their nucleic acids and uses thereof. The polypeptidic sequence of the polypeptides of the invention can be part of the N-terminal sequence of a mucus-binding (MUB) domain, especially a mucus-binding (MUB) domain of several species. The invention also relates to chimeric molecule(s) comprising such polypeptides, which are labelled, and vectors, especially plasmids and population of cells or composition comprising polypeptides of the invention. Synthesis methods encompass biotechnological or chemical production. Polypeptides of the invention can be used in staining experiments, as a probe or marker for staining Muc2 protein(s) contained in mucus layer(s), to detect in vitro mucus production or mucus composition in human colon or monitoring any one of the following disease conditions: neoplasic disease(s), including mucinous carcinoma(s), gastric cancer(s) or colorectal cancer(s), especially colon cancer(s), cystic fibrosis, intestine inflammatory disease(s) such as inflammatory bowel disease (IBD) and ulcerative colitis. The invention also relates to a method for manufacturing a medicament. In a particular embodiment, use of polypeptides of the invention can be made for marking neutrophiles.
摘要:
The invention relates to a double-stranded polynucleotide comprising on its positive strand considered from its 5' end to its 3' end, (i) a promoter of a gene of interest or several promoters of various genes of interest selected among genes which are endogenous to a determined cell, and, (ii) one or several barcode(s) wherein each barcode contains at least one barcode unit formed of at least one, especially of multiple, recognition binding sites each binding site being composed of a nucleotide sequence, and wherein each of said barcode(s) is under the control of at least one of said promoter(s) for transcription. It further concerns use of said polynucleotide to monitor gene expression patterns in living cells, especially in single cells, with a rapid and high spatio-temporal resolution.
摘要:
The present invention relates to compositions and methods for blocking entry of Shigella into a cell of an animal, to therefore providing protection against, or reduce the severity of Shigella infections. More particularly it relates to the use of the IpaD protein obtained from natural sources and/or through synthesis or recombinant technology, and conjugates thereof to induce neutralizing antibodies having protective activity against several serotypes of Shigella, in particular S. flexneri. The composition of the invention is useful to prevent and/or treat shigellosis caused by a bacterium of the Shigella family.
摘要:
The present invention is directed to an agonist of NOD2 for use in therapy for increasing the autonomous capacity of survival of vertebrate adult stem cells, without loss of their capacity to multiply and differentiate, and preferably the capacity of survival of intestinal stem cells, especially in response to a stress. The invention also concerns the use of an agonist of Nod2 for increasing in vitro or ex vivo the autonomous capacity of survival, without loss of multiplication and differentiation capacity of mammalian adult stem cell. The invention also discloses different media and support for mammalian adult stem cells. The invention also concerns an in vitro screening process for identifying molecules capable increasing, in response to a stress, the autonomous capacity of survival, without loss of multiplication and differentiation capacity of mammalian adult stem cells.
摘要:
The present invention relates to a saccharide selected from the group consisting of: €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ{B(E)CD} €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ{(E)CDAB}n €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ{AB(E)CD}n Wherein A, B, C, E, D and n are as defined in claim 1. The invention also relates to derivatives thereof, pharmaceutical compositions comprising said derivatives, and kit for the diagnostic of Shigella flexneri type 2a infection comprising said derivatives.