摘要:
Described herein are methods of inserting nucleic acid sequences into host cells. Also described herein are genetically stable host cells comprising inserted nucleic acid sequences and methods of using such host cells in the generation of proteins.
摘要:
The invention provides compositions featuring cationic liposome nucleic acid molecules complexed with pathogen derived antigen and methods of using such compositions for the treatment or prevention of an infectious disease. Other features and advantages of the invention will be apparent from the detailed description, and from the claims.
摘要:
The present invention provides immunogenic compositions comprising one or more Francisella tularensis comprising one or more mutations. Preferably, the mutations are in a gene selected from FTT0369c and FTT1676, or combinations thereof. The invention also features vaccines comprising the immunogenic compositions, and methods of vaccinating a subject and methods of treating a host organism infected with or susceptible to tularemia with the inventive compositions.
摘要:
A pharmaceutical composition for treating or preventing a Th2-mediated disease or disorder includes live, killed or attentuated Franciscella tularensis or its components. The F. tularensis cells may be LVS cells. Administration of an effective amount may prevent or reduce bronchoconstriction or allergic airway inflammation through a T-helper cell (Th) 1-mediated suppression of an ongoing Th2 response mechanism.
摘要:
A strain of Francisella species wherein a gene which encodes for part of the glutamate metabolic pathway has been inactivated, and which is able to produce a protective immune response in an animal, for use as live prophylactic or therapeutic vaccine against infection by said Francisella species. Particularly effective strains include those where the capB gene is deleted. Other embodiments of the invention describe strains which comprise a further genetic mutation wherein a gene which encodes for another component of the cell is also inactivated. Pharmaceutical compositions comprising said strains, together with methods which utilise such strains are also described and claimed.
摘要:
This disclosure describes, generally, compositions and methods related to thermostable vaccine formulations, their storage, and their use. Generally, the thermostable vaccine formulations can be in the form of a dry powder. The dry powder formulations can increase the length of time that the vaccine remains viable under non-refrigerated, ambient temperature conditions.
摘要:
Francisella tularensis is the bacterial pathogen that causes tularemia in humans and a number of animals. To date, no approved vaccine exists for this widespread and life-threatening disease. The present disclosure provides attenuated Francisella mutants that include genetic inactivations in two genes. The Francisella mutants contain a genetic inactivation in at least one gene selected from dsbB, FTT0742, pdpB,fumA, and carB, and at least one gene selected from tolB, htrB, ipxH, ostAl, fimT, ipcC, manB, manC, nusA, wzx, kdtA, FTN0408, FTN0757 and FTN1254. Also provided are immunogenic compositions that include the attenuated bacteria. Methods are provided for treatment (e.g., treatment of tularemia) using the attenuated Francisella mutants.
摘要:
Proteins and nucleic acids for use in producing a protective immune response in a mammal against infection by Francisella tularensis , are described and claimed. The proteins are selected from the SEQ ID NO 1-100 as provided in the application, or protective variants thereof, or fragments of either of these.
摘要翻译:描述和要求保护用于在哺乳动物中产生保护性免疫应答的蛋白质和核酸,以防止土拉弗朗西丝杆菌感染。 蛋白质选自本申请中提供的SEQ ID NO 1-100或其保护性变体,或其中任一种的片段。
摘要:
A polypeptide comprising at least one component of an Hsp60 obtainable from Francisella tularensis, and in particular the GroEL protein, or a fragment thereof, or a variant of any of these, which polypeptide, when administered to an animal, produces an immune response which is protective against F. tularensis infection, for use in prophylactic or therapeutic vaccination against F. tularensis. The polypeptide may be administered directly to the host, or nucleic acid encoding the polypeptide may be administered in a form in which they might be expressed in vivo. Vaccines based upon these polypeptides suitably include an additional component and in particular an adjuvant which promotes a cellular immune response.
摘要:
Establishment of an effective and uniform vaccine development strategy is key to conquering current and emerging infectious diseases. Despite successes against an array of bacterial agents, current approaches to vaccine development are as diverse as the microbes they target and require adjuvants that often have limited efficacy and/or toxic side effects. As a consequence, vaccine discovery is often slow, inefficient, and unsuccessful in the case of many high priority pathogens. The present disclosure suggests that vaccine generation for bacterial pathogens can be improved by optimizing the efficiency of processing/presentation of a bacterial immunogen via the targeting of immunogen to CR2 and/or TLR2 on APCs. This approach not only yields an adjuvant-free mucosal vaccine against a Category A biothreat agent, but also establishes a novel genetic approach/platform for vaccine development, which is applicable to many other infectious agents, thereby profoundly impacting preventive medicine/public health.