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97
resultados
Última actualización
28/08/2026 [07:21:00]
Resumen de: CN122609470A
本发明属于生物医药领域，具体涉及一种胸苷依赖型的鼠伤寒沙门氏菌工程菌及其组合物与应用。所述工程菌以鼠伤寒沙门氏菌VNP20009为出发菌株，经敲除胸苷酸合成酶基因thyA和插入腺苷脱氨酶编码基因，获得生长依赖外源嘧啶核苷酸、胞内表达或外膜表达腺苷脱氨酶的工程菌；胞内表达腺苷脱氨酶的工程菌为鼠伤寒沙门氏菌VNP20009‑cADD，保藏号为CGMCC No.37959；外膜表达腺苷脱氨酶的工程菌为鼠伤寒沙门氏菌VNP20009‑wADD，保藏号为CGMCC No.37956。该工程菌可肿瘤靶向定植、安全性更高，能在肿瘤局部降解腺苷、解除免疫抑制，联合放疗或免疫检查点抑制剂时可显著抑制实体瘤生长。
Resumen de: US20260242416A1
Antimicrobial peptides (AMPs) exhibiting broad spectrum antimicrobial activity are described. Such peptides are useful in treating or preventing infections and other conditions, and are of special interest for treating antibiotic-resistant bacterial pathogens. Development of new AMPs is arduous due to the practical limitations of classical protein-based discovery approaches. A high throughput bioinformatics approach leading to identification of numerous antimicrobial peptides from known genomic sequences is described.
Resumen de: US20260243764A1
Described herein is a biosensor for detecting the presence of a target molecule in a sample. The biosensor comprises: a polymeric hydrogel; a colorimetric indicator entrapped in the polymeric hydrogel; and an oligonucleotide that crosslinks the polymeric hydrogel, wherein the oligonucleotide is separated in the presence of the target molecule, thereby releasing the colorimetric indicator from the hydrogel.
Resumen de: US20260240985A1
0000 The present invention relates to a non-viable bacterium cell wherein an immunogenic polypeptide fused to an auto-transporter comprising transmembrane linker and a trans-porter domain is displayed on the surface of the cell, and to a preparation comprising such non-viable cells. The preparation is useful as an oral vaccine.
Resumen de: US20260242806A1
0000 The invention relates to re-engineering of a natural microbial syringe for loading of effector proteins that are not naturally found as cargo of the specific syringe. The cargo, that is one or more effector protein and proteins required for packing, can be up to 300 kDa and can be proteins such as toxins, therapeutic proteins, and gene modification tools. The re-engineering of the natural syringe result in a contractile injection system that allows packing of large cargo and cargo combinations, such as toxin-chimeras. The system comprises a Conserved Virulence Cassette encoding the syringe structure and is co-expressed with a sequence encoding cargo and a signal peptide. The signal peptide comprises a packing motif that enables packing of cargo into the syringe. The contractile injection system can be used for agricultural purposes as well as for medicinal purposes.
Resumen de: AU2026208127A1
Compositions, methods, kits, and uses are provided for detecting the presence of Salmonella, Shigella, Campylobacter, and Shigatoxigenic Escherichia coli (STEC) in samples. In some embodiments, the compositions, methods, kits, and uses comprise one or more oligonucleotides or the use of one or more oligonucleotides. ul u l
Resumen de: WO2025080776A2
Aspects of the invention described herein relate to a vaccine composition comprising at an antigenic polysaccharide and an immunomodulatory amount of a sialic acid binding moiety, wherein the sialic acid binding moiety comprises sialic acid binding domain (SBD) which is not fused to an antigenic polypeptide.
Resumen de: WO2022032100A2
The presently disclosed subject matter provides compositions, kits, and methods comprising imaging agents that can detect Programmed Cell Death Ligand 1 (PD-L1). The presently disclosed imaging agents can be used to detect diseases and disorders, such as cancer, infection, and inflammation, in a subject.
Resumen de: CN122582271A
本发明公开一种基于细菌的肿瘤原位疫苗，包括灭活细菌和腺苷脱氨酶，所述灭活细菌为大肠杆菌(Escherichia coli) Nissle 1917或减毒鼠伤寒沙门氏菌(VNP 20009)中的任意一种或两种。本发明的肿瘤原位疫苗对宿主脏器无明显毒副作用，具有良好的安全性，生产制备工艺简单、成本低；可通过瘤内注射方式刺激机体先天性和适应性免疫系统，增强抗肿瘤免疫，抑制肿瘤细胞生长，有效预防肿瘤的发生发展和复发转移。
Resumen de: CN122563840A
本发明公开了一种肿瘤靶向定植且肠道可条件性清除的工程菌及其应用。该工程菌首次整合了“肿瘤专性定植回路”与“大肠杆菌素条件性敏感回路”：通过营养缺陷型突变（ΔaroA）与缺氧依赖性增殖回路（P hypox ‑ftsZ）的双重锁定，实现严格的肿瘤微环境专性定植；通过外源大肠杆菌素受体基因与时间延迟免疫蛋白回路的协同，实现在肠道穿越窗口期（约0‑4小时）内对大肠杆菌素耐受、穿越完成后恢复敏感的条件性清除能力。本发明工程菌解决了口服活菌制剂“既要高效穿越肠屏障、又要彻底清除肠道残留”的核心矛盾，为肿瘤细菌疗法提供了安全、可控的活体底盘，可广泛用作定植菌或效应菌应用于各类级联放大肿瘤免疫治疗系统。
Resumen de: CN115715198A
The present invention relates to a DNA vaccine comprising a Salmonella typhi Ty21a strain, the Salmonella typhi Ty21a strain comprising a DNA molecule, the DNA molecule comprising an eukaryotic expression cassette encoding at least a COVID-19 coronavirus (SARS-CoV-2) spike (S) protein or a portion thereof. In particular, the invention relates to the application of the DNA vaccine to prevention and/or treatment of the coronavirus disease COVID-19 or SARS-CoV-2 infection.
Resumen de: WO2026170052A1
The present invention provides for enrichment of animal foodstuffs using endolysin polypeptides or fragments thereof, which possess antimicrobial activity (e.g., against gram-negative bacteria, such as Salmonella enterica). The invention also provides for nucleic acid molecules encoding the endolysin, and methods of their production. Also provided are compositions comprising the endolysins, or comprising any of the means for producing the endolysin (e.g., a host cell, lysate, or dried product, etc.) that has antimicrobial activity, for the use of said compositions in a method of reducing the population of gram-negative bacteria in a foodstuff, or preventing or treating a disease or disorder in an animal.
Resumen de: US20260232581A1
0000 The present disclosure provides pharmaceutical compositions for use in delivering therapeutics, such as vaccines or biologic material, to the nasal cavity or the deep lungs. In particular, the pharmaceutical compositions may preferentially deposit on the lower or middle turbinate region and the nasopharynx region of the nasal cavity. In other aspects the pharmaceutical compositions may be used to generate powders that penetrate the deep lungs. Also, provided herein are methods of preferential delivery to these regions.
Resumen de: EP4790026A1
0001 Apparatus for treating various fluids, such as wine, must, water, oil, sauce, fruit juice, and others, to prevent contamination or the development and spread of diseases such as salmonella and legionella. The apparatus allows to avoid excessive proliferation of colonies of bacteria and yeasts which, if present in excessive quantities, can cause mould and pathogens in general. The apparatus comprises a container body containing a reticular cathode and anode that allow the liquid to pass through and are powered by an electrical connector that receives electrical current from a power supply controlled by an electronic control unit. The container body is configured to be immersed in the liquid to be treated, allowing the liquid to flow through the cathode and anode, which generate a pulsed electric field. The electrical signal has a frequency of about 300 Hz, an amplitude of 100V and pulses of few milliseconds. To increase the efficiency of the treatment, the signal changes polarity every 90 seconds.
Resumen de: WO2022036159A2
Provided are attenuated immunostimulatory bacteria with genomes that are modified to, for example, reduce toxicity and improve the anti-tumor activity, such as by increasing accumulation in the tumor microenvironment, particularly in tumor- resident myeloid cells, improving resistance to complement inactivation, reducing immune cell death, promoting adaptive immunity, and enhancing T-cell function. Also provided are immunostimulatory bacteria for use as vaccines, and for delivery of mRNA. The increase in colonization of phagocytic cells improves the delivery of encoded therapeutic products to the tumor microenvironment and to tumors and permits, among other routes, systemic administration of the immunostimulatory bacteria. The increase in colonization of phagocytic cells also provides for use of immunostimulatory bacteria for direct tissue administration for use as vaccines.
Resumen de: WO2025021695A1
The present invention relates to immunogenic compositions comprising outer membrane vesicles (OMVs) adsorbed to an aluminium hydroxide adjuvant, whereby the aluminium hydroxide adjuvant is quenched. The present invention also relates to the use of the immunogenic compositions for providing protection against diseases caused by Gram-negative bacteria. The present invention also relates to a method for reducing particle aggregation and/or average particle diameter in compositions comprising OMVs and an aluminium hydroxide adjuvant.
Resumen de: CN122521544A
本发明公开了一种可分泌微菌素MccY的减毒鸡白痢沙门菌（pMccY‑asd），其制备方法及应用，归属于禽沙门菌病的防治领域。本发明提供的鸡白痢减毒沙门菌毒力显著降低，能有效清除强力菌株感染，并可应用平板凝集试验对免疫接种鸡和自然感染鸡予以区分。通过宿主载体平衡致死系统构建pMccY‑asd质粒，可以使菌株在不依赖抗生素筛选的情况下锁定质粒，并且持续高效地分泌表达MccY，对野生型鸡白痢沙门菌及不同血清型沙门菌有较好的抑菌作用。
Resumen de: CN122520725A
本发明公开了一种沙门菌属特异性抗原片段、基因、试剂盒及其在检测鸡血清中沙门菌抗体中的应用。所述沙门菌属特异性抗原PagN片段的氨基酸序列如SEQ ID NO.1所示。本发明首次公开了沙门菌属特异性抗原PagN片段在沙门菌鸡群感染的血清学诊断价值，并将其作为间接ELISA的包被抗原，建立了沙门菌抗体间接ELISA检测方法。沙门菌外膜蛋白PagN片段能够特异性识别沙门菌属抗体，能绕过血清型差异造成的检测障碍，迅速锁定沙门菌属感染，适用于临床中需要快速初筛的场景。本发明能够用于鸡群中沙门菌属抗体的检测，为沙门菌的流行病学调查以及沙门菌感染的精准防控提供了有力的技术支持。
Resumen de: US2017000831A1
0001 The present invention relates to bacteriophage therapy. More particularly, the present invention relates to novel bacteriophages having a high specificity against Escherichia coli strains, their manufacture, components thereof, compositions comprising the same and the uses thereof in phage therapy.
Resumen de: WO2026165563A1
Disclosed are methods for inoculating embryonated avian eggs for conferring protective immune responses against diseases caused by a diversity of bacterial, viral and parasite pathogens. According to certain aspects methods are disclosed that involve administering, in ovo, a safe inoculating dose of a Protective Immunity Enhanced Salmonella Vaccine (PIESV) strain, or derivative thereof, and optionally co-administering a safe inoculating dose of a live self-destructing attenuated adjuvant Salmonella strain (SDAAS), or derivative thereof.
Resumen de: US20260226485A1
0000 Aspects of the present disclosure relate to modified yeast cells capable of producing increased quantities of squalene as compared to unmodified yeast cells and methods of using the same.
Resumen de: WO2026165105A1
The present inventive concept provides non-toxic compositions that include components selected from ethanol, polymers, polar aprotic solvents, water, organic acids, phospholipids, polyols, polysaccharides, phenols, plant extracts, organic salts, peroxide, and antibiotics. The compositions are designed as an enhancement or additive to animal feed additives, animal feedstuff, animal feed, or animal hydration sources. The compositions provide a safer alternative to traditional formaldehyde (e.g., aldehyde-based) compositions by incorporating preservative and antimicrobial agents into animal feed products. The compositions provided herein render animal feed highly resistant to recontamination by pathogenic bacteria such as Salmonella, Campylobacter, Streptococcus, Staphylococcus, E. coli, Clostridia, and Bacillus. Moreover, the compositions provide safer working conditions by eliminating workers' exposure to carcinogenic substances.
Resumen de: WO2026165108A1
The present inventive concept provides methods using non-toxic compositions that include components selected from ethanol, polymers, polar aprotic solvents, water, organic acids, phospholipids, polyols, polysaccharides, phenols, plant extracts, organic salts, peroxide, and peptide antibiotics designed as hygienic agents for the poultry and livestock industries. The compositions and methods provide a safer alternative to use of traditional formaldehyde (e.g., aldehyde-based) compositions by incorporating non-toxic preservation and antimicrobial agents to enhance biosecurity and sanitation in the livestock environments, and in particular, poultry production environments. The methods provided herein also control the growth of pathogenic bacteria such as Salmonella, Campylobacter, Streptococcus, Staphylococcus, E. coli, Clostridia, and Bacillus. Moreover, the methods and compositions provide safer working conditions by eliminating workers' exposure to carcinogenic substances.
Resumen de: US20260227395A1
0000 The disclosure provides a three-dimensional (3-D) macroporous melamine foam membrane comprising an amine reactive group. The membrane foam can be used to perform ELISA assays for the detection of an analyte. Diffusion of the analyte through the different membrane layers is fast and homogeneous in all directions and suitable for detection of large volume of samples in low concentration of targets and multiple targets simultaneously in one integrated system with minimal interference from targets.
Nº publicación: US20260227396A1 06/08/2026
Solicitante:
DEUTSCHES RHEUMA FORSCHUNGSZENTRUM BERLIN [DE]
Deutsches Rheuma-Forschungszentrum Berlin
Resumen de: US20260227396A1
0000 A method for identifying a multi-parameter phenotype of microbiota. The method includes (i) providing a sample including microbiota, (ii) labeling the microbiota with multiple labels, each of which binds a phenotypic parameter of the microbiota, (iii) detecting an intensity of the labelled phenotypic parameters of single cells of the microbiota by flow cytometry, and (iv) segmenting the single cells into bins based on the intensities of detected phenotypic parameters, wherein the distribution of single cells in bins represents a multi-parameter phenotype of said microbiota. Also described is a system for identifying a multi-parameter phenotype of intestinal microbiota, a kit for identifying a multi-parameter phenotype of intestinal microbiota and methods for diagnosing a medical condition associated with microbiota, for example an inflammatory condition, such as an inflammatory bowel disease, in a subject.
BOPI
Sede Electrónica
