background and aims: influenza a virus of orthomyxoviridae family is able to create pandemic influenza. vaccination is the most effective way to prevent influenza virus infection. matrix protein 2 (m2) is a homotetramer ion channel with 97 amino acids length and highly conserved among influenza viruses and is considered for development of a universal influenza vaccine. materials and methods: we...

BACKGROUND Matrix metalloproteinases (MMPs) degrade the extracellular matrix (ECM) and regulate remodeling and regeneration of bone. Enamel matrix derivative (EMD) protein has been used clinically for periodontal regeneration, although its molecular mechanisms are not clear. We evaluated the role of matrix metalloproteinases (MMPs) in regulating EMD-dependent degradation of gelatin on oeoblast-...

objective(s): juglone is isolated from many species of the juglandaceae family and used as an anti-viral, anti-bacterial, and anti-tumor therapeutic. here, we evaluated juglone-induced antitumor effect in ovarian cancer skov3 cells. materials and methods: mtt assay was performed to examine juglone anti-proliferative effect. cell cycle and apoptosis were studied using flow cytometry in juglone-tr...

background: bone morphogenetic protein 2 (bmp- 2) belongs to the tgf-β superfamily of proteins and plays an important role in the development of bone and cartilage. bmp- 2 is also associated with maintenance and repair of damaged bone. recombinant human bone morphogenetic protein 2 (rhbmp- 2) is now produced by genetic engineering techniques and used in treatment of thin bone fractures in the j...

conclusions a fusion tag from the pet32 expression plasmid permits the recovery of the recombinant fusion fgf-2 from e. coli, without affecting its biological activity. objectives the objective of this study was to overexpress and purify the high-level active human bfgf in escherichia coli (e. coli). materials and methods this experimental study was conducted in the islamic republic of iran. af...

background brucellosis is an important cosmopolitan infection disease caused by organisms belonging to the genus brucella. the cgt gene (cyclic β-1, 2 glucan transporter gene) is a virulent factor in brucella genus. the present study was conducted with the aim of cloning and expression of brucella cgt gene. materials and methods brucella melitensis cgt gene was amplified from extracted chromoso...

Integrin-mediated cell-matrix interactions play an important role in osteogenesis. Here, we constructed a novel osteoinductive fibronectin matrix protein (oFN) for bone tissue engineering, designed to combine the integrin-binding modules from fibronectin (iFN) and a strong osteoinductive growth factor, bone morphogenetic protein-2. Compared with iFN, the purified oFN matrix protein caused a sig...

Nanostructured surfaces enhance ion yields in matrix-assisted laser desorption–ionization mass spectrometry (MALDI-MS). The spike protein complex, S1, is one fingerprint signature of Sars-CoV-2 with a 75 kDa. Here, we show that MALDI-MS ions the 100 kDa range are enhanced 50-fold when matrix–analyte solution placed on substrates coated dense forest multi-walled carbon nanotubes, compared to fro...