Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0038362 (stomatitis)
 8,852 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The relationship between NS protein phosphorylation and RNA polymerase activities was determined in nucleocapsids purified from vesicular stomatitis virus grown in BHK cells. Phosphate incorporation into endogenous NS protein under transcription conditions reached a maximum value of 0.06 mol/mol of NS within 20 to 30 min, while RNA synthesis remained linear for 90 min. Phosphate incorporation into NS increased further upon addition of kinase-free NS protein but not upon addition of nucleocapsid kinase (prepared as described below), indicating that cessation of NS phosphorylation under transcribing conditions was due to substrate exhaustion. When NS was phosphorylated with 32P, less than 8% of the radiolabel was lost during subsequent transcription, indicating that this phosphate did not turn over. Treatment of nucleocapsids with 5'-p-fluorosulfonylbenzoyl adenosine resulted in greater than 90% inhibition of NS phosphorylation but had no effect on RNA polymerase activity. Fast protein liquid (Superose-6) chromatography of a nucleocapsid (L + NS) fraction resulted in complete separation of the viral (L + NS) protein from NS-phosphorylating activity. The addition of this kinase-free (L + NS) fraction to a kinase-deficient N-RNA fraction reconstituted an active RNA polymerase containing less than 20% of the original NS-phosphorylating activity. These results demonstrate that NS-phosphorylating activity is unnecessary during vesicular stomatitis virus RNA synthesis and indicate that all of the protein kinase(s) present in purified nucleocapsids is probably of cellular rather than viral origin.
 ...
PMID:Phosphorylation of NS protein by vesicular stomatitis virus nucleocapsids: lack of effect during RNA synthesis and separation of kinase from L protein. 216 40

Interaction of lymphotoxin alpha(1)beta(2) (LTalpha(1)beta(2)) with its receptor is key for the generation and maintenance of secondary lymphoid organ microstructure. We used mice conditionally deficient for LTbeta on different lymphocyte subsets to determine how the LTbeta-dependent lymphoid structure influences immune reactivity. All conditionally LTbeta-deficient mice mounted normal immune responses against vesicular stomatitis virus (VSV), and were protected against lymphocytic choriomeningitis virus (LCMV). In contrast, they exhibited reduced immune responses against non-replicating antigens. Completely LTbeta-deficient mice failed to retain VSV in the marginal zone and died from VSV infections, and they became virus carriers following infection with the non-cytopathic LCMV, which was correlated with defective virus replication in dendritic cells. It was ruled out that LTbeta expression on lymphocytes influenced their activation, homing capacity, or maturation. We therefore conclude that LTbeta expression influences immune reactivity at two distinct levels: (i) Expression of LTbeta on lymphocytes enhances the induction of immune responses against limiting amounts of antigen. (ii) Expression of LTbeta on non-lymphocytes governs antiviral immunity by enhancing antigen presentation on antigen-presenting cells. This prevents cytotoxic T lymphocytes exhaustion or death of the host by uncontrolled virus spread.
 ...
PMID:Expression of lymphotoxin beta governs immunity at two distinct levels. 1684 Dec 97

The paper presents one of the rather rare complications related to the malignant blood disease in young patients. The treatment of this extremely serious disease should be accompanied not only with number of already described complications which are thus expected but also with rare ones, whose control and treatment is demanding and rather long-term. The immense progress in medical research makes it possible to cope with a variety of serious diseases including leukaemia in young patients with one-year intensive therapy and an overall exhaustion of their organisms, where in spite of a perfect therapeutic protocol new challenges need to be met. The present study describes one of such rare complications, which appeared in two three-year-old girl patients, accidentally during the same time period: namely benign oesophagus stenosis. The condition was caused by several factors - first mycotic infection, histologically proved as Candida Albicans - which in one of the girls lead to septic states and the condition was generalised with more affected organs. Due to the location of the stenosis in the lower third of oesophagus, gastrooesophagus reflux played its role, too and last but not least there was a negative effect of one of the cytostatics - methotrexate - causing mycotic infections (here stomatitis and oesophagitis). For the proper development and overall well-being of a healthy organism, an optimal, sufficient and appropriate per oral reception of food is necessary. Satisfying this need becomes even more crucial in the case of young patient otherwise affected by an immunodeficient condition and an overall impoverishment of their organism. The oesophagus stenosis presents an obstacle manageable using either endoscopic methods or surgery. Although in the cases discussed the treatment was very demanding due to the age of the patients, continuous cytostatic therapy in progress, the primary disease, and the general anaesthesia - it was finally effective and successful.
 ...
PMID:[A rare complication of acute lymphoblastic leukaemia in young patients]. 1731 May 90