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The Drosophila melanogaster tumor suppressor gene lethal(3)malignant brain tumor encodes a proline-rich protein with a novel zinc finger.

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The lethal(3)malignant brain tumor [t(3)mbt] gene causes, when mutated, malignant growth of the adult optic neuroblasts and ganglion mother cells in the larval brain and imaginal disc overgrowth. Via overlapping deficiencies a genomic region of approximately 6.0 kb was identified, containing

Expression of proline-directed protein kinase, (p34cdc2/p58cyclin A), a novel cell proliferation marker in childhood brain tumors.

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The presence of two proteins of the proline-directed protein kinase (PDPK), the catalytic subunit p34cdc2 and the regulatory subunit p58cyclin A was determined in seven primitive neuroectodermal tumors (PNETs), three choroid plexus neoplasms and eleven astroglial tumors. The highest expression was

Investigation of cis-4-[18F]Fluoro-D-Proline Uptake in Human Brain Tumors After Multimodal Treatment.

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OBJECTIVE Cis-4-[18F]fluoro-D-proline (D-cis-[18F]FPro) has been shown to pass the intact blood-brain barrier and to accumulate in areas of secondary neurodegeneration and necrosis in the rat brain while uptake in experimental brain tumors is low. This pilot study explores the uptake behavior of

Analysis of plasma free amino acid profiles in canine brain tumors.

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Canine brain tumors are best diagnosed using magnetic resonance imaging (MRI). However, opportunities of MRI examination are restricted due to its limited availability in veterinary facilities; thus, numerous canine brain tumors are diagnosed at an advanced stage. Therefore, development of a

Detection of remote neuronal reactions in the Thalamus and Hippocampus induced by rat glioma using the PET tracer cis-4-[¹⁸F]fluoro-D-proline.

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After cerebral ischemia or trauma, secondary neurodegeneration may occur in brain regions remote from the lesion. Little is known about the capacity of cerebral gliomas to induce secondary neurodegeneration. A previous study showed that cis-4-[(18)F]fluoro-D-proline (D-cis-[(18)F]FPro) detects

Characterization of two non-testis-specific CABYR variants that bind to GSK3beta with a proline-rich extensin-like domain.

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To explore more possible roles for GSK3beta function, the yeast two-hybrid screening using GSK3beta as a bait protein was performed. In this study, we demonstrated that two variants of CABYR (281 and 379) interacted with GSK3beta in the yeast two-hybrid and GST pull down assay. Molecular

Cis-4-[18F]fluoro-D-proline detects neurodegeneration in patients with akinetic-rigid parkinsonism.

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This study aimed to investigate whether the amino acid PET tracer cis-4-[F]fluoro-D-proline [D-cis-[F]FPro] shows increased uptake in the basal ganglia of patients with neurodegenerative akinetic-rigid parkinsonism. D-Cis-[F]FPro is a sensitive PET tracer for inflammation-associated

The Multiple Roles of Peptidyl Prolyl Isomerases in Brain Cancer.

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Peptidyl prolyl isomerases (PPIases) are broadly expressed enzymes that accelerate the cis-trans isomerization of proline peptide bonds. The most extensively studied PPIase family member is protein interacting with never in mitosis A1 (PIN1), which isomerizes phosphorylated serine/threonine⁻proline

[Detection of codon 72 polymorphism of p53 gene from blood and loss of heterozygosity in brain tumors using polymerase chain reaction].

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p53 gene which is known as a tumor suppressor gene locates in chromosome 17p and has a polymorphism at codon 72 (Arginine CGC-->Proline CCC). In this study, we examined the frequency of polymorphism and of heterozygosity in Japanese, and the loss of p53 gene in brain tumor tissues of the patients

Isomers of 4-[18F]fluoro-proline: radiosynthesis, biological evaluation and results in humans using PET.

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Proline and hydroxyproline represent major constituents of mammalian structural proteins, especially of collagen. An efficient radiosynthesis of the (18)F-labeled proline derivatives cis-/trans-4-[(18)F]fluoro-L-proline was developed two decades ago with the aim to investigate various diseases with

Malignant brain tumor repeats: a three-leaved propeller architecture with ligand/peptide binding pockets.

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We report on the X-ray structure of three 100-amino acid mbt repeats in h-l(3)mbt, a polycomb group protein involved in transcriptional repression, whose gene is located in a region of chromosome 20 associated with hematopoietic malignancies. Interdigitation between the extended arms and cores of

cDNA cloning of a novel protein containing two zinc-finger domains that may function as a transcription factor for the human heme-oxygenase-1 gene.

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Heme oxygenase 1 is an essential enzyme in heme catabolism that cleaves heme to form biliverdin, iron, and carbon monoxide. The human heme-oxygenase-1 gene is transcriptionally activated through the cis-regulatory element (MTE), GTCATATGAC (positions -156 to -147), during 12-O-tetradecanoylphorbol

Molecular mechanisms of HIF-1alpha modulation induced by oxygen tension and BMP2 in glioblastoma derived cells.

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BACKGROUND Glioblastoma multiforme (GBM) is one of most common and still poorly treated primary brain tumors. In search for new therapeutic approaches, Bone Morphogenetic Proteins (BMPs) induce astroglial commitment in GBM-derived cells in vitro. However, we recently suggested that hypoxia, which is

Role of Yes-associated protein 1 in gliomas: pathologic and therapeutic aspects.

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The activation of proline-rich phosphoprotein Yes-associated protein 1 (YAP1) possesses a possible link between stem/progenitor cells, organ size, and cancer. YAP1 has been indicated as an oncoprotein, and overexpression of YAP1 is reported in many human brain tumors, including infiltrating gliomas.

Alpha-amylase is a human salivary protein with affinity to lipopolysaccharide of Aggregatibacter actinomycetemcomitans.

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Aggregatibacter actinomycetemcomitans lipopolysaccharide (Aa.LPS) is a major virulence factor associated with aggressive periodontitis. Although the recognition of Aa.LPS is potentially initiated by salivary proteins in the oral cavity, Aa.LPS-binding proteins (Aa.LPS-BPs) in saliva are poorly

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