Malignant adenomyoepithelioma of the breast: Two case reports and review of the literature.

Background: Malignant adenomyoepithelioma (AME) of the breast is a rare tumor in which malignancy can arise from either epithelial or myoepithelial components, or from both cell types. The incidence and prognosis of malignant AME of the breast are difficult to assess due to its rarity. Therefore, the optimal treatment for this disease is still controversial.

Glucagon-like peptide 1 treatment reverses vascular remodelling by downregulating matrix metalloproteinase 1 expression through inhibition of the ERK1/2/NF-κB signalling pathway.

In addition to serving as an incretin-based treatment of type 2 diabetes mellitus (T2DM), glucagon-like peptide 1 (GLP-1) can also reverse cardiovascular diseases caused by vascular remodelling. However, a detailed mechanism underlying how GLP-1 reverses vascular remodelling remains unclear. Here, Spontaneous hypertension rats (SHR) were used as an in vivo model of vascular remodelling.

GLP-1 Relaxes Rat Coronary Arteries by Enhancing ATP-Sensitive Potassium Channel Currents.

GLP-1 is a new type of antidiabetic agent that possesses many beneficial effects. Although its cardiovascular actions have been widely examined, little is known about GLP-1's effects on the rat coronary artery (RCA) or about the mechanisms underpinning these effects. Here, we report that GLP-1 inhibits depolarization- or thromboxane receptor agonist (U46619)-induced RCA contraction in a dosage-dependent manner.

GLP-1 attenuates Ang II-induced proliferation and migration in rat aorta smooth muscle cells inhibition of the RhoA/ROCK2 signaling pathway.

Glucagon-like peptide 1 (GLP-1), a neuroendocrine hormone produced by the gastrointestinal tract, plays a significant role in blood glucose regulation; drugs derived from GLP-1 are currently used for the treatment of type 2 diabetes. In addition to regulating glucose homeostasis, the protective effects of GLP-1 on the cardiovascular system are also of interest. However, the vascular protective mechanisms of GLP-1 remain unclear.

A single pH fluorescent probe for biosensing and imaging of extreme acidity and extreme alkalinity.

A simple tailor-made pH fluorescent probe 2-benzothiazole (N-ethylcarbazole-3-yl) hydrazone (Probe) is facilely synthesized by the condensation reaction of 2-hydrazinobenzothiazole with N-ethylcarbazole-3-formaldehyde, which is a useful fluorescent probe for monitoring extremely acidic and alkaline pH, quantitatively. The pH titrations indicate that Probe displays a remarkable emission enhancement with a pK of 2.73 and responds linearly to minor pH fluctuations within the extremely acidic range of 2.

Investigating the Role of the Posttranscriptional Gene Regulator MiR-24- 3p in the Proliferation, Migration and Apoptosis of Human Arterial Smooth Muscle Cells in Arteriosclerosis Obliterans.

Aims: To explore the expression of miR-24-3p in human arteries with arteriosclerosis obliterans (ASO) as well as the role of miR-24-3p in the pathogenesis of ASO.

Methods: We used quantitative real-time PCR (qRT-PCR) and in situ hybridization to monitor miR-24-3p expression in human arteries. To investigate the effect of miR-24-3p on human arterial smooth muscle cells (HASMCs), we applied cell counting and EdU assays to monitor proliferation and transwell and wound healing assays to investigate migration and flow cytometry to investigate apoptosis.

High mobility group-box 3 overexpression is associated with poor prognosis of resected gastric adenocarcinoma.

Aim: To elucidate high mobility group-box 3 (HMGB3) protein expression in gastric adenocarcinoma, its potential prognostic relevance, and possible mechanism of action.

Methods: Ninety-two patients with gastric adenocarcinomas surgically removed entered the study. HMGB3 expression was determined by immunohistochemistry through a tissue microarray procedure.

Expression, purification, and characterization of alanine racemase from Pseudomonas putida YZ-26.

Alanine racemase catalyzes the interconversion of D: - and L: -alanine and plays an important role in supplying D: -alanine, a component of peptidoglycan biosynthesis, to most bacteria. Alanine racemase exists mostly in prokaryotes and is generally absent in higher eukaryotes; this makes it an attractive target for the design of new antibacterial drugs. Here, we present the cloning and characterization of a new gene-encoding alanine racemase from Pseudomonas putida YZ-26.

Characterization of zinc-binding properties of a novel imidase from Pseudomonas putida YZ-26.

The imidase from Pseudomonas putida YZ-26 consisting of 293-amino acid residues is a novel imidase with four subunits as the holo-enzyme and low molecular weight which is significantly different from known mammalian imidase. This study measured the zinc-binding properties of the imidase using inductively coupled plasma-atomic emission spectrometry and competition assay combined with activity determinations. Results show that each subunit of the imidase binds the zinc ion by 1:1 stoichiometry with apparent binding constant of 9.

[Expression of transcription factor T-bet and GATA-3 in peripheral blood mononuclear cells and its correlation with immune status in esophageal cancer patients].

Objective: To investigate the expression of transcription factors (TF) T-bet and GATA-3 mRNA in peripheral blood mononuclear cells and its correlation with immune status in esophageal cancer patients.

Methods: Sixty patients were divided into two groups according to the clinical data: group A consisting of stage I and II, group B including stage III and IV. The gene expression of T-bet and GATA-3 in 60 esophageal cancer patients and 30 healthy controls was detected by reverse transcription-polymerase chain reaction (RT-PCR).

The flexibility of the non-conservative region at the C terminus of D-hydantoinase from Pseudomonas putida YZ-26 is extremely limited.

We previously reported that a deletion mutant (P478) with a residue Arg deleted at the C terminus of D-hydantoinase (P479) from Pseudomonas putida YZ-26 was dissociated into the monomer from its dimeric state. Based on the above result, a series of mutants of the enzyme with the C-terminal residues either deleted or substituted were prepared. The size-exclusion chromatography and bioactivity assay show that a C-terminal-substituted enzyme (R479D) and several truncated mutants (P478, P477, P476, and P475) are dissociated into the monomeric state as well, but their activities are largely retained.

Gene cloning, expression, and substrate specificity of an imidase from the strain Pseudomonas putida YZ-26.

A gene-encoding imidase was isolated from Pseudomonas putdia YZ-26 genomic DNA using a combination of polymerase chain reaction and activity screening the recombinant. Analysis of the nucleotide sequence revealed that an open reading frame (ORF) of 879 bp encoded a protein of 293 amino acids with a calculated molecular weight of 33712.6 kDa.

[Molecular form and stability of D-hydantoinase deleted at C-terminal residue Arg].

This report is about only deleting one C-terminal residue of D-hydantoinase to result in obvious changes on its molecular form and stability. A recombinant D-hydantoinase (P479) and its mutant enzyme deleted at C-terminal residue Arg (P478) were prepared by methods of gene cloning, expression and purification. Results show that the subunit molecular weight of P479 and P478 is the same (54kDa) as determined by SDS-PAGE, whilst the molecular form of native P479 and P478 is a dimer and a monomer respectively in the completely operative conditions.

PDZ7 of glutamate receptor interacting protein binds to its target via a novel hydrophobic surface area.

Glutamate receptor interacting protein 1 (GRIP1) is a scaffold protein composed of seven PDZ (Postsynaptic synaptic density-95/Discs large/Zona occludens-1) domains. The protein plays important roles in the synaptic targeting of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors. The interaction between GRIP1 PDZ7 and a Ras guanine nucleotide exchange factor, GRASP-1, regulates synaptic distribution of AMPA receptors.