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At least 1,027 records · Page 57Linked to original sources
PubMed1997

RT-PCR method specific for the detection of transgenic CFTR mRNA in the presence of transgene plasmid DNA and endogenous CFTR mRNA.

A major problem with experiments involving the correction of cystic fibrosis by gene transfer has been reliably detecting the transgenic message and distinguishing this from an endogenous message and from vector DNA. We have exploited the SV40 small T antigen intron present in an expression vector containing the CFTR cDNA (pCFAS) using a primer directed to the spliced sequence to allow specific and precise detection of the transgeneic message.

Antigens, Polyomavirus Transforming↗
PubMed1984

Convicilin mRNA from pea (Pisum sativum L.) has sequence homology with other legume 7S storage protein mRNA species.

Nucleotide-sequence analysis of a complementary-DNA clone for convicilin, one of the storage proteins from pea (Pisum sativum L.) seeds, shows it to be homologous with the 7S legume seed storage proteins vicilin, conglycinin and phaseolin. Convicilin is more similar to vicilin than to phaseolin or to conglycinin. Significant areas of sequence difference are discussed.

Amino Acid Sequence↗
PubMed1986

A vector-primer-cloner-sequencer plasmid for the construction of cDNA libraries: evidence for a rat glyceraldehyde-3-phosphate dehydrogenase-like mRNA and a ferritin mRNA within testis.

We have developed a vector-primer-cloner-sequencer (VPCS), based on the pUC plasmids, which is easy to prepare. Stable cDNA libraries have been generated from human, rat, and bull testis. The inserts are of various size classes, including high-molecular-weight reverse transcripts which can be easily sequenced. The utility of this VPCS has been demonstrated by isolating a rat ferritin and glyceraldehyde-3-phosphate dehydrogenase-like clone.

Animals↗
PubMed2004

Differential expression of the trypsin inhibitor SPINK3 mRNA and the mouse ortholog of secretory granule protein ZG-16p mRNA in the mouse pancreas after repetitive injury.

A mouse model using repetitive acinar cell injury caused by supraphysiologic doses of cerulein to induce the characteristic fibrosis and loss of acinar cell mass found in human chronic pancreatitis was employed to identify early changes in gene expression. A gene array was used to detect changes in 18,000 expressed sequence tags; changes in specific transcripts were confirmed by RNase protection assays. These methods identified SPINK3, the mouse homologue of human and rat protease inhibitor genes, as being highly expressed in the pancreas and induced after pancreatic injury. Because SPINK3 may be an important serine protease inhibitor, its up-regulation may reflect an important endogenous cytoprotective mechanism in preventing further injury. The up-regulation of SPINK3 was specific; the mouse homologue of the zymogen-processing protein ZG-16p was also highly expressed in the pancreas but sharply down-regulated early in the course of injury. These findings suggest that the pancreatic acinar cell may respond to injury with a program of self-preservation and loss of normal function.

Amino Acid Sequence↗
PubMed1996

Upregulation of IGF-I and collagen I mRNA in human atherosclerotic tissue is not accompanied by changes in type 1 IGF receptor or collagen III mRNA: an in situ hybridization study.

BACKGROUND: Immunoreactive insulin-like growth factor-I (IGF-I) has recently been localized to vascular smooth muscle cells in coronary atherectomy plaques, but it remains unclear whether these cells are the source of this growth factor. We therefore investigated the gene expression of this factor, and the expression of the genes for its receptor and two types of collagen known to be regulated by IGF-I, in vascular tissue samples from patients with atherosclerosis or restenosis. METHODS: Gene expression and localization were investigated by in situ hybridization, using 35S-labelled complementary RNA probes specific for IGF-I, its type a receptor, collagen I, and collagen III. The cellular composition of the tissue samples was determined by immunohistochemistry using antibodies specific for smooth muscle cells and macrophages. RESULTS: IGF-I and collagen I messenger RNAs were found in areas containing smooth muscle cells and macrophages, but collagen III and type 1 IGF receptor gene expression could not be detected in any tissue samples. CONCLUSION: IGF-I appears to be involved in the progression of the atherosclerotic plaque, even at an advanced stage, but preliminary data from two restenotic plaques indicate that it may not be involved in the later stages of restenosis.

Arteriosclerosis↗