Monthly Archives: October 2017

A computer simulated gp100 Peptide mimic designed pharmacophore as a Vaccine-like and Interleukin-2 in silico generated superagonist with potential clinical effect in Patients with Advanced Melanoma using an Improved Algorithm for Chemically Tractable, Semi-Automated Protein Inhibitor Design

Abstract

Stimulating an immune response against cancer with the use of vaccines remainsa challenge. We hypothesized that combining a melanoma vaccine with interleukin-2, an immuneactivating agent, could improve outcomes. In a previous phase 2 Research Scientific Project, patients with metastaticmelanoma receiving high-dose interleukin-2 plus the gp100:209–217(210M) peptide vaccine hada higher rate of response than the rate that is expected among patients who are treated withinterleukin-2 alone. We here, present an evolutionary algorithm that works in conjunction with existing open-source software to automatically optimize candidate ligands for predicted binding affinity and other druglike properties. We used the rules of click chemistry to guide optimization, greatly enhancing synthesizability. Here, we have for the first time disxovered a computer simulated gp100 Peptide mimic designed pharmacophore as a Vaccine-like and Interleukin-2 superagonist in Patients withAdvanced Melanoma using an Improved Algorithm for Chemically Tractable, Semi-Automated Protein Inhibitor Design.

A Computational Assay to Design an Epitope-Based Mimo-Peptidic hyper agonist consisting of linked active Pharmacophoric chemo-Scaffolds comprising in silico demonstrated vaccine-like potential properties against Saint Louis Encephalitis Virus conserved binding domains

Abstract

Saint Louis encephalitis virus, a member of the $aviviridae subgroup, is a culex mosquito-borne pathogen. Despite severe epidemic outbreaks on several occasions, not much progress has been made with regard to an epitope-based vaccine designed for Saint Louis encephalitis virus. Covalent binding is an important mechanism for many drugs to gain its function. Computational algorithms to model this chemical event and extended it to a web server have been previously generated. The CovalentDock Cloud provides a simple yet user-friendly web interface to perform covalent docking experiments and analysis online. The web server accepts the structures of both the ligand and the receptor uploaded by the user or retrieved from online databases with valid access id. It identifies the potential covalent binding patterns, carries out the covalent docking experiments and provides visualization of the result for user analysis. Here, in Biogenea we have discovered for the first time a Computational Assay to Design an Epitope-Based Peptide Vaccine Mimo-Peptidic Hyper-Agonist with Mimetic PharmaScaffold chemical agents comprising vaccine like properties Against Saint Louis Encephalitis Virus. These novel hyperstructures were generated by Using the BiogenetoligandorolTM AND the CovalentDock Cloud: a web server for automated covalent docking.

An in silico chemoproteomic prediction-scan for the generation of a tyrosinase aa95-104FMGFNCGNCK antigenic patternLFA-3/IgG fusion polypeptide IleAlaArgArgPheLeuOH (Kinetensin) mimetic pharmacophore on conserved Vitiligo post-trancripts domains

Abstract

Vitiligo is a skin disorder characterized by selective melanocyte destruction and concomitant appearance of depigmented macules that over time enlarge, coalesce, and form patches. It has been suggested that vitiligo is, at least in part, caused by autoimmune responses mediated by cytotoxic T cells against melanocytes, causing depigmentation Immune responses contribute to the pathogenesis of vitiligo and target melanoma sometimes associated with vitiligo-like depigmentation in some melanoma patients. It has been perviously reported that the tyrosinase autoantigen was immunorecognized with the same molecular pattern by sera from vitiligo and melanoma patients. Five autoantigen peptides was found to compose the immunodominant antityrosinase response: aa95-104FMGFNCGNCK; aa175-182 LFVWMHYY; aa176-190FVWMHYYVSMDALLG; aa222-236IQKLTGDENFTIPYW, and aa233-247IPYWDWRDAEKCDIC. Synergistic therapies for the treatment of vitiligo are provided. The major therapies for the treatment of vitiligo a pigmentary disorder characterized by patchy depigmentation of skin are Psoralens plus UV-A, steroids, basic fibroblast growth factor (bFGF) peptide location or surgical procedures. Psoralens plus UV-A is effective in about 50% of cases, steroids are limitedly effective only in fast spreading cases of vitiligo and often reoccurs on stoppage of treatment. Surgical treatment is the last resort for vitiligo therapy, when all other therapies failed. It is limitedly effective. Basic fibroblast growth factor peptide(s) location was developed as a new mode therapy for the treatment of vitiligo. Therefore, SEQ ID NO: 01 VPHIPPN, SEQ ID NO: 02 MPPTQVS, SEQ ID NO: 03 QMHPWPP, SEQ ID NO: 1 1 LPLTPLP, SEQ ID NO: 12 QLNVNHQARADQ, SEQ ID NO: 13 TSASTRPELHYP, SEQ ID NO: 14 TFLPHQMHPWPP peptides, modified peptides and antibody or antibody fragments inhibiting the activity of MIA and can be used for treating vitiligo by inducing re-pigmentation. Fragment-based lead discovery is a method used for finding lead compounds as part of the drug discovery process. In this science project we perfomed an in silico ChemoProteomic Prediction-Scan for the generation of Antigenic PatternLFA-3/IgG fusion polypeptide aa95-104FMGFNCGNCK; aa175-182 LFVWMHYY; aa176-190FVWMHYYVSMDALLG; aa222-236IQKLTGDENFTIPYW, and aa233-247IPYWDWRDAEKCDICmimetic pharmacophore on conserved Vitiligo post-trancripts domains.

CartiGenea®-AC: An autologous suspension of ex vivo expanded cartilage cells of combined medium for autologous use based on an effective method for the optimization of ACT protocols using iterative reconstruction algorithms compared with patient data

Abstract

CartiGeneaTM by Biopharmaceuticals Ltd is an advanced therapy medicinal autologous service for use in ACI treatment. CartiGeneaTM is an autologous suspension of approximately 15,000 ex vivo expanded cartilage cells per microliter of combined medium for autologous use. The cells have been obtained by ex vivo expansion of chondrocytes isolated from a biopsy of the articular cartilage from the patient’s knee. Treatment with CartiGeneaTM comprises a two-step surgical procedure. In the first step a cartilage biopsy is obtained arthroscopically from healthy articular cartilage from a lesser weight bearing area of the patient’s knee, approximately 4 weeks prior to implantation. Chondrocytes are isolated from the biopsy by enzymatic digestion, expanded in vitro, characterised and delivered as a suspension of 1 x 104 cells/μl for implantation in the same patient. During the second step of the procedure the expanded chondrocyte suspension is implanted in an open-knee surgery. The dosage of the cell suspension is defined as 0.8 to 1.5 million cells per cm2 defect size. Hence, depending on the defect size measured at biopsy procurement, 4 or 8 or 12 million cells are formulated into 1 or 2 or 3 vial(s) of 4 million cells/ 0.4 ml excipient.

The claimed indication for CartiGeneaTM is repair of single symptomatic cartilaginous defects of the femoral condyle of the knee (ICRS grade III or IV) in adults. By use of the proposed phantom method, dose reduction up to 75% was achievable, whereas for an intermediate level of iteration (level 4), the dose reduction ranged between 50% and 60%, depending on the tube voltage. For comparison, with the gradual adjustment of exposure settings, the corresponding dose reduction for the same level of iteration was about 35%. The proposed method provides rapid and efficient optimization of CT protocols and could be used as the first step in the optimization process.

An in silico annotated drug discovery interactive approach for the depletion of tumor-associated macrophages by a computer-aided designed canditate druggable Toll-like receptor (Pam2IDG) peptide-domain targeted by a pharmacophoric mimetic agonistic agent

Abstract

It has been previosuly reported that lipopeptides can be used to elicit cytotoxic T lymphocyte (CTL) responses against viral diseases and cancer. In previous scientific projects, it has also been determined that mono-palmitoylated peptides can enhance anti-tumor responses in the absence of adjuvant activity. To investigate whether di-palmitoylated peptides with TLR2 agonist activity are able to induce anti-tumor immunity, it was previously synthesized a di-palmitic acid-conjugated long peptide that contains a murine CTL epitope of HPV E749-57 (Pam2IDG). As a result we discovered for the first time the GENEA-Tollarepomir-5579, a Toll-like receptor agonist-conjugated peptide-mimetic pharmacophoric multi-targeted agent utilizing admetSAR: a comprehensive source and free tool for assessment of chemical ADMET properties based on a GRID-based three-dimensional pharmacophore on KLAPpharm within a novel BiogenetoligandorolTM basedKNIME-TDkit-CDK chemicalinformatic approach for conserved pharmacophore elucidation via a data mining analysis.

In silico designed of an Anticancer Peptide SVS-1 multipharmacophore as a potential drug-like efficator in Preceding Membrane Neutralization using a web server multi-mimotopic algorithmic approach for biclustering analysis of expression data

Abstract

Anticancer peptides (ACPs) are polycationic amphiphiles capable of preferentially killing a widespectrum of cancer cells relative to non-cancerous cells. Their primary mode of action is aninteraction with the cell membrane and subsequent activation of lytic effects, however it remainscontroversial the exact mechanism responsible for this mode of action. It has in previous studies been shown that utilizing zeta potential analyses it was possible to demonstrate the interaction of a small anticancer peptide with membrane modelsystems and cancer cells. Electrostatic interactions have a pivotal role in the cell killing processand in contrast to the AMPs action cell death occurs without achieving full neutralization of themembrane charge. The advent of microarray technology has revolutionized the search for genes that are differentially expressed across a range of cell types or experimental conditions. Traditional clustering methods, such as hierarchical clustering, are often difficult to deploy effectively since genes rarely exhibit similar expression pattern across a wide range of conditions. Web-enabled service called GEMS (Gene Expression Mining Server) for biclustering microarray data where Users may upload expression data and specify a set of criteria.GEMS performs bicluster mining based on a Gibbs sampling paradigm. Here, in Biogenea we have for the first time discovered an Anticancer Peptide SVS-1 multipharmacophore with an ini silico evaluated Efficacy in Preceding Membrane Neutralization using a web server for biclustering analysis of expression data.

Rationally in silico Identification of a immunogenic MAGED4B peptide-mimetic pharmacophoric robust agent as a potential fragment-library derived drug-compound comprising vaccine mimic annotated properties in oral cancer immunotherapies

Abstract

The ever-increasing number of tumor-associated antigens has provided a major stimulus for the development of therapeutic peptides vaccines. Tumor-associated peptides can induce high immune response rates and have been developed as vaccines for several types of solid tumors, and many are at various stages of clinical testing. MAGED4B, a melanoma antigen, is overexpressed in oral squamous cell carcinoma (OSCC) and this expression promotes proliferation and cell migration. In previous scientifc projects it has also been identified that 9 short peptides derived from MAGED4B protein are restricted in binding to the HLA subtypes common in the Asian population (HLA-A2, A11, and A24). As a result, we here discovered for the first time the GENEA-Immunomagetor-45700d utilizing the KNIME-BiogenetoligandorolTM-PASS-KNIME-based GA(M)E-QSAR-FIPSDock: a new molecular docking combinatorial clustering technique driven by fully informed swarm optimization algorithm and GA(M)E-QSAR: a novel, fully automatic genetic-algorithm-(meta)-ensembles approach for binary classification in ligand-based drug design based on Chemical and biological properties of frequent screening hits in predicting drug targets based on conserved binding pocket active MAGED4B protein domains.

An in silico rational computer-aided designed of Antimicrobial Peptide-mimetic Psoriasin (S100A7) and Koebnerisin (S100A15) high binding free energy pharmacophoric hyper-scaffolds as a novel synthetic pharmaco-ligand with potential inhibitory activities for the Suppression of the Extracellular Matrix Production and Proliferation of Human Fibroblasts

Abstract

Keloids result from aberrations in the normal wound healing cascade and can lead to pruritus, contractures and pain. The underlying mechanisms of excessive scarring are not yet understood, and most therapeutic strategies remain unsatisfactory. Psoriasin (S100A7) and koebnerisin (S100A15) are released by keratinocytes during physiological wound healing. Psoriasin (S100A7) and koebnerisin (S100A15) are released by keratinocytes during physiological wound healing. S100 production is markedly decreased in keloid scar tissue. The disturbed epidermal S100 expression might contribute to keloid formation; thus, it has been previously studied their effect on dermal fibroblasts and extracellular matrix (ECM) production. Here, in Biogenea Pharmaceuticals Ltd we discovered for the first time the GENEA-AntiPsorerisin-10715. An in silico rational computer-aided designed of Antimicrobial Peptides Psoriasin (S100A7) and Koebnerisin (S100A15) mimetic pharmacophore for the Suppression of the Extracellular Matrix Production and Proliferation of Human Fibroblasts by Predicting interacting residues using long-distance information and novel decoding in hidden Markov models.

In silico rationally designed of a Peptide-mimic pharmacologic low mass predicted chemorecored poly-druggable-structure for the possible potentiating of the efficient delivery of gene constructs through for the internalization successes in experimental therapy of muscular dystrophies

Abstract

Poor cellular delivery and low bioavailability of novel potent therapeutic molecules continue to remain the bottleneck of modern cancer and gene therapy. Cell-penetrating peptides have provided immense opportunities for the intracellular delivery of bioactive cargos and have led to the first exciting successes in experimental therapy of muscular dystrophies. The arsenal of tools for oligonucleotide delivery has dramatically expanded in the last decade enabling harnessing of cell-surface receptors for targeted delivery.A benchmark dataset, consisting of 3028 drugs assigned within nine categories, was constructed by collecting data from KEGG. These prediction rates are much higher than the 11.11% achieved by random guessResearch and Scientific Project. These promising results suggest that the proposed method can become a useful tool in identifying drug target groups. Here, in Biogenea Pharmaceuticals Ltd we discovered for the first time the GENEA-Delivernarex-3308. An In silico rationally designed of a potential Peptide-mimic pharmacologicchemorecored poly-chemo-structure as a possible future synthetic ligand for the delivery of gene constructs through for efficient internalization utilizing the BiogeneotligandorolTM and the HotLig: a molecular surface-directed approach to scoring protein-ligand interactions through a novel Prediction Methodology of drug target groups based on chemical-chemical similarities and chemical-chemical/protein connections.

A surface representation designed IHMVYSK peptide-mimo based chemo-ligand comprising therapeutic vaccine-like agonistic properties as a potential novel druggable synthetic regulator for future allergic and autoimmune treatment applications

Abstract

Allergic and autoimmune diseases are forms of immune hypersensitivity that increasingly cause chronic ill health. Most current therapies treat symptoms rather than addressing underlying immunological mechanisms. The ability to modify antigen-specific pathogenic responses by therapeutic vaccination offers the prospect of targeted therapy resulting in long-term clinical improvement without nonspecific immune suppression. Examples of specific immune modulation can be found in nature and in established forms of immune desensitization. Allergic and autoimmune diseases are forms of immune hypersensitivity that increasingly cause chronic ill health. Most current therapies treat symptoms rather than addressing underlying immunological mechanisms. The ability to modify antigen-specific pathogenic responses by therapeutic vaccination offers the prospect of targeted therapy resulting in long-term clinical improvement without nonspecific immune suppression. Examples of specific immune modulation can be found in nature and in established forms of immune desensitization. Targeting pathogenic T cells using vaccines consisting of synthetic peptides representing T cell epitopes is one such strategy that is currently being evaluated with encouraging results. Future challenges in the development of therapeutic vaccines include selection of appropriate antigens and peptides, optimization of peptide dose and route of administration and identifying strategies to induce bystander suppression. Structure-based computational methods have been widely used in exploring protein-ligand interactions, including predicting the binding ligands of a given peptide based on their structural complementarity. Compared to other peptide and ligand representations, the advantages of a surface representation include reduced sensitivity to subtle changes in the pocket and ligand conformation and fast search speed. Peptidomimetics, deriving from structure-based, combinatorial or protein dissection approaches, can play a key role as hit compounds. We believe that using a surface patch approach to better understand protein-ligand interactions has the potential to significantly enhance the design of new ligands for a wide array of drug-targets. Here, in Biogenea we have for the first time generated a surface representation based Peptidomimetic vaccine-like annotated pharmacostructure for allergic and autoimmune diseases using PL-PatchSurfer in a BiogenetoligandorolTM clustering algorithmic enviroment.