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Human stem cell based corneal tissue mimicking structures using laser-assisted 3D bioprinting and functional bioinks.

There is a high demand for developing methods to produce more native-like 3D corneal structures. In the present study, we produced 3D cornea-mimicking tissues using human stem cells and laser-assisted bioprinting (LaBP). Human embryonic stem cell derived limbal epithelial stem cells (hESC-LESC) were used as a cell source for printing epithelium-mimicking structures, whereas human adipose tissue derived stem cells (hASCs) were used for constructing layered stroma-mimicking structures. The development and optimization of functional bioinks was a crucial step towards successful bioprinting of 3D corneal structures. Recombinant human laminin and human sourced collagen I served as the bases for the functional bioinks. We used two previously established LaBP setups based on laser induced forward transfer, with different laser wavelengths and appropriate absorption layers. We bioprinted three types of corneal structures: stratified corneal epithelium using hESC-LESCs, lamellar corneal stroma using alternating acellular layers of bioink and layers with hASCs, and finally structures with both a stromal and epithelial part. The printed constructs were evaluated for their microstructure, cell viability and proliferation, and key protein expression (Ki67, p63α, p40, CK3, CK15, collagen type I, VWF). The 3D printed stromal constructs were also implanted into porcine corneal organ cultures. Both cell types maintained good viability after printing. Laser-printed hESC-LESCs showed epithelial cell morphology, expression of Ki67 proliferation marker and co-expression of corneal progenitor markers p63α and p40. Importantly, the printed hESC-LESCs formed a stratified epithelium with apical expression of CK3 and basal expression of the progenitor markers. The structure of the 3D bioprinted stroma demonstrated that the hASCs had organized horizontally as in the native corneal stroma and showed positive labeling for collagen I. After 7 days in porcine organ cultures, the 3D bioprinted stromal structures attached to the host tissue with signs of hASCs migration from the printed structure. This is the first study to demonstrate the feasibility of 3D LaBP for corneal applications using human stem cells and successful fabrication of layered 3D bioprinted tissues mimicking the structure of the native corneal tissue.

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Human Stem Cell Factor SC Macrophage Colony Stimula Macrophage Colony Stimula Human Phospho-EGFR (Activ Human Mouse Rat Phospho-E Human Phospho-EGFR (Y1068 Human Mouse Rat Phospho-E Human Mouse Rat Phospho-E Human Mouse Rat Phospho-E Human Mouse Rat JNK (T183 Human Mouse Rat Phospho-p Human Mouse Rat Phospho-S

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Modified porcine surfactant enriched by recombinant human superoxide dismutase for experimental meconium aspiration syndrome.

Combination of exogenous surfactant with antioxidant enzyme recombinant human superoxide dismutase (rhSOD) was tested in the treatment of experimental meconium aspiration syndrome as oxidative processes play key role in its pathogenesis.

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Superoxide Dismutase,huma Recombinant Human Copper, Bone Morphogenetic Protei Growth Differentiation Fa Isopeptidase T (short for Isopeptidase T (long form Human superoxide dismutas Superoxide Dismutase 1, H Superoxide Dismutase 2, H Superoxide Dismutase 4, H ELISA Human , Superoxide ELISA Human , Superoxide

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Human Recombinant Epidermal Growth Factor in skin lesions: 77 cases in EPItelizando Project.

To analyze compounded recombinant human Epidermal Growth Factor (rhEGF) effectiveness on skin lesions through a case series.

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Human Insulin-like Growth Human Insulin-like Growth Macrophage Colony Stimula Macrophage Colony Stimula Recombinant Human Intrins Recombinant Human Intrins Recombinant Human Intrins Recombinant Human WNT Inh Recombinant Human WNT Inh Recombinant Human WNT Inh Growth Factor (Human) Ant Goat Anti-Human Fibroblas

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Pharmacological Differentiation of Thrombomodulin Alfa and Activated Protein C on Coagulation and Fibrinolysis In Vitro.

Although thrombomodulin alfa (TM alfa), recombinant human soluble thrombomodulin, exerts antithrombogenic effects through activated protein C (APC), clinical trials suggested that TM alfa has a lower bleeding risk than does recombinant human APC. To address the mechanism explaining this difference, effects of TM alfa and APC on thrombogenic, coagulation, and fibrinolytic processes were compared in vitro. TM alfa and APC inhibited generation of thrombogenic markers, thrombin, and prothrombin fragment F1+2 and prolonged coagulation parameters, activated clotting time (ACT), and activated partial thromboplastin time (APTT). Concentrations of TM alfa effective for thrombin and F1+2 generation inhibition were comparable to those of APC. However, effects of TM alfa on ACT and APTT were clearly weaker than those of APC. TM alfa significantly prolonged clot lysis time (CLT) and decreased LY30, a parameter of degree of fibrinolysis in thromboelastography, whereas APC significantly shortened CLT and increased LY30. These results suggested that while the antithrombogenic effects of TM alfa were similar to those of APC, its anticoagulant effects were lower. In addition, effects of TM alfa were antifibrinolytic, while those of APC were profibrinolytic.

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Goat Anti- T-cell differe Human Macrophage Inflamma Human Macrophage Inflamma Human Macrophage Inflamma Human Macrophage Inflamma Human Macrophage Inflamma Human Gro g Macrophage In Mouse Macrophage Inflamma Mouse Macrophage Inflamma Mouse Macrophage Inflamma Mouse Macrophage Inflamma Native Influenza HA (A Ca

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Hepatitis B Vaccination Induced TNF-- and IL-2-Producing T Cell Responses in HIV- Healthy Individuals Higher than in HIV+ Individuals Who Received the Same Vaccination Regimen.

We investigated cytokine production and expression of degranulation marker CD107a after different strategies of hepatitis B virus (HBV) vaccination in human immunodeficiency virus-infected individuals, which were three doses of 20 g (standard dose group), four doses of 20 g (four doses group), or four doses of 40 g (four double doses group), compared to standard dose vaccination in healthy controls. PBMCs collected at different time points were stimulated with recombinant hepatitis B surface antigen and analyzed by flow cytometry. There was an increase in TNF- production of total and memory CD4+ T cells at 7 months after vaccination in healthy controls compared to the HIV+ group, which received the same standard vaccination regimen. An increase in the IL-2-producing memory CD4+ T cells in the healthy control group was also observed at 7 months after vaccination. No differences were observed between the healthy controls and both groups of four doses at any time point of study. These results suggest that the standard HBV vaccination schedule might induce better production of TNF- and IL-2 from CD4+ T cells in healthy individuals. Modification of HBV vaccination schedule by increasing the frequency and/or dosage may improve the CMI response in HIV-infected individuals. This trial is registered with NCT1289106.

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CELLKINES Natural Human I Human Epstein-Barr Virus HIV Self Test Kit, 1Test HIV I&II test strip, Infe Mouse Epstein-Barr Virus TGF beta induced factor 2 Leptin ELISA Kit, Rat Lep Cultrex 24 Well BME Cell Thermal Shaker with cooli Bovine prolactin-induced Interleukins Recombinant Octyl â D 1 thioglucopyr

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Antibody-Mediated Osseous Regeneration for Bone Tissue Engineering in Canine Segmental Defects.

Among many applications of therapeutic monoclonal antibodies (mAbs), a unique approach for regenerative medicine has entailed antibody-mediated osseous regeneration (AMOR). In an effort to identify a clinically relevant model of craniofacial defect, the present study investigated the efficacy of mAb specific for bone morphogenetic protein- (BMP-) 2 to repair canine segmental mandibular continuity defect model. Accordingly, a 15 mm unilateral segmental defect was created in mandible and fixated with a titanium plate. Anorganic bovine bone mineral with 10% collagen (ABBM-C) was functionalized with 25 g/mL of either chimeric anti-BMP-2 mAb or isotype-matched mAb (negative control). Recombinant human (rh) BMP-2 served as positive control. Morphometric analyses were performed on computed tomography (CT) and histologic images. Bone densities within healed defect sites at 12 weeks after surgery were 1360.81 ± 10.52 Hounsfield Unit (HU), 1044.27 ± 141.16 HU, and 839.45 ± 179.41 HU, in sites with implanted anti-BMP-2 mAb, rhBMP-2, and isotype mAb groups, respectively. Osteoid bone formation in anti-BMP-2 mAb (42.99% ± 8.67) and rhBMP-2 (48.97% ± 2.96) groups was not significantly different but was higher ( < 0.05) than in sites with isotype control mAb (26.8% ± 5.35). In view of the long-term objective of translational application of AMOR in humans, the results of the present study demonstrated the feasibility of AMOR in a large clinically relevant animal model.

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Alkaline Phospatase (ALP) Bladder cancer tissue arr Bone marrow tumor and adj Human normal bone and ost Breast cancer tissue arra Breast cancer tissue arra Breast invasive ductal ca Colon carcinoma tissue ar Cervix cancer tissue arra Esophagus cancer tissue a Esophageal cancer tissue FDA Standard Frozen Tissu

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Efficacy of rhBMP-2 Loaded PCL/-TCP/bdECM Scaffold Fabricated by 3D Printing Technology on Bone Regeneration.

This study was undertaken to evaluate the effect of 3D printed polycaprolactone (PCL)/-tricalcium phosphate (-TCP) scaffold containing bone demineralized and decellularized extracellular matrix (bdECM) and human recombinant bone morphogenetic protein-2 (rhBMP-2) on bone regeneration. Scaffolds were divided into PCL/-TCP, PCL/-TCP/bdECM, and PCL/-TCP/bdECM/BMP groups. In vitro release kinetics of rhBMP-2 were determined with respect to cell proliferation and osteogenic differentiation. These three reconstructive materials were implanted into 8 mm diameter calvarial bone defect in male Sprague-Dawley rats. Animals were sacrificed four weeks after implantation for micro-CT, histologic, and histomorphometric analyses. The findings obtained were used to calculate new bone volumes (mm) and new bone areas (%). Excellent cell bioactivity was observed in the PCL/-TCP/bdECM and PCL/-TCP/bdECM/BMP groups, and new bone volume and area were significantly higher in the PCL/-TCP/bdECM/BMP group than in the other groups ( < .05). Within the limitations of this study, bdECM printed PCL/-TCP scaffolds can reproduce microenvironment for cells and promote adhering and proliferating the cells onto scaffolds. Furthermore, in the rat calvarial defect model, the scaffold which printed rhBMP-2 loaded bdECM stably carries rhBMP-2 and enhances bone regeneration confirming the possibility of bdECM as rhBMP-2 carrier.

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Bcl-2 Oncoprotein; Clone c-erbB-2 Oncoprotein c-erbB-3 Oncoprotein; Cl c-erbB-2 Oncoprotein; Cl c-erbB-2 Oncoprotein; Cl Human Bone Morphogenetic Bone marrow tissue array, Normal bone marrow tissue Bone marrow tumor and adj Polyclonal Antibody Bone Bone disease spectrum (bo Bone and cartilage cancer

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An integrated bio-process for production of functional biomolecules utilizing raw and by-products from dairy and sugarcane industries.

The study investigated an integrated bioprocessing of raw and by-products from sugarcane and dairy industries for production of non-digestible prebiotic and functional ingredients. The low-priced feedstock, whey, molasses, table sugar, jaggery, etc., were subjected to transglucosylation reactions catalyzed by dextransucrase from Leuconostoc mesenteroides MTCC 10508. HPLC analysis approximated production of about 11-14 g L trisaccharide i.e. 2-α-D-glucopyranosyl-lactose (4-galactosyl-kojibiose) from the feedstock prepared from table sugar, jaggery, cane molasses and liquid whey, containing about 30 g L sucrose and lactose each. The trisaccharide was hydrolysed into the prebiotic disaccharide, kojibiose, by employing recombinant β-galactosidase from Escherichia coli. The enzyme β-galactosidase achieved about 90% conversion of 2-α-D-glucopyranosyl-lactose into kojibiose. The D-fructose generated by catalytic reactions of dextransucrase was targeted for catalytic transformation into rare sugar, D-allulose (or D-psicose), by treating the samples with Smt3-D-psicose 3-epimerase. The catalytic reactions resulted in the conversion of ~ 25% D-fructose to D-allulose. These bioactive compounds are known to exert a plethora of benefits to human health, and therefore, are preferred ingredients for making functional foods.

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Androgen Receptor (Phosph Androgen Receptor (Phosph Rabbit Anti-Human Androge Rabbit Anti-Human Androge Androgen Receptor (Ab 650 AZD-3514 Mechanisms: Andr 17β-Acetoxy-2α-bromo-5 (5α,16β)-N-Acetyl-16-[2 (5α,16β)-N-Acetyl-16-ac 5α-N-Acetyl-2'H-androst- 5α-N-Acetyl-2'H-androst- 3-O-Acetyl 5,14-Androstad

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Peptide Derivatives of Erythropoietin in the Treatment of Neuroinflammation and Neurodegeneration.

During the past 35 years, recombinant DNA technology has allowed the production of a wide range of hematopoietic and neurotrophic growth factors including erythropoietin (EPO). These have emerged as promising protein drugs in various human diseases. Accumulated evidences have recently demonstrated the neuroprotective effect of EPO in preclinical models of acute and chronic degenerative disorders. Nevertheless, tissue protective effect of EPO could not be translated to the clinical trials because of common lethal thromboembolic events, erythropoiesis and hypertension. Although chemically modified nonerythropoietic analogs of EPO bypass these side effects, high expense, development of antidrug antibodies, and promotion of tumorigenicity are still concern especially in long-term use. As an alternative, nonerythropoietic EPO mimetic peptides can be used as candidate drugs with their high potency and selectivity, easy production, low cost, and immunogenicity properties. Recent experimental studies suggest that these peptides prevent ischemic brain injury and neuroinflammation. The results of clinical trial in patients with neuropathic pain are also promising. Herein, we summarize these studies and review advanced experimental and in silico methods in peptide drug discovery.

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Generation and characterization of hagfish variable lymphocyte receptor B against glycoprotein of viral hemorrhagic septicemia virus (VHSV).

Variable lymphocyte receptors B (VLRBs) are non-immunoglobulin components of the humoral immune system in jawless vertebrates including hagfish (Eptatretus burgeri) and lamprey (Petromyzon marinus). Hagfish VLRBs consist of leucine rich repeat (LRR) modules with a superhydrophobic C-terminal tail, the latter of which leads to extremely low expression levels in recombinant protein technology. Here, we present an artificially oligomerized VLRB (arVLRB) that conjugates via the C4bp oligomerization domain derived from human C4b-binding protein (hC4bp) rather than the superhydrophobic tail. The resulting arVLRB had a tightly multimerized form with seven monomeric VLRB arms and showed high expression and secretion levels in a mammalian expression system. To isolate antigen-specific arVLRB, we constructed large VLRB libraries from hagfish immunized with the fish pathogen, viral hemorrhagic septicemia virus (VHSV). The selected arVLRBs were found to recognize various types of antigens, including the recombinant target protein, purified viruses, and progeny viruses, with high antigen binding abilities and specificities. We also performed in vitro affinity maturation of the arVLRBs through LRRCT mutagenesis, and found that this enhanced their antigen-binding properties by at least 125-fold. Our epitope mapping analysis revealed that DWDTPL, which is located in a region conserved among the glycoproteins of all VHSV isolates, is the recognition epitope of the arVLRBs. Thus, our newly developed arVLRB could prove useful in the development of universal diagnostic tools and/or therapeutic agents for the virus. Together, our novel findings provide valuable insights into hagfish VLRB and its potential use as a novel alternative to conventional antibodies for biotechnological applications.

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