Attenuated measles virus (MV) is one of the most effective and safe vaccines available, making it attractive candidate vector to prevent infectious diseases. Attenuated MV have acquired the ability to use the complement regulator CD46 as a major receptor to mediate virus entry and intercellular fusion. Therefore, attenuated MV strains preferentially infect and destroy a wide variety of cancer cells making them also attractive oncolytic vectors. The use of recombinant MV vector has to comply with various regulatory requirements, particularly relating to the assessment of potential risks for human health and the environment. The present article highlights the main characteristics of MV and recombinant MV vectors used for vaccination and virotherapy and discusses these features from a biosafety point of view.
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http://dx.doi.org/10.1080/21645515.2015.1122146 | DOI Listing |
Hum Vaccin Immunother
December 2024
Interactions hôte-pathogène, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France.
Measles live attenuated vaccine (MV) induces strong humoral and cellular systemic memory responses allowing the successful control of measles since decades. MV has also been adapted into a promising vaccine platform with several vaccine candidates in clinical development. To understand and document the tissue-scaled memory response induced by MV, we explored the specific induction and persistence of resident memory T cells (Trm) in the lungs and the liver, two critical targeted tissues for vaccine development against several diseases.
View Article and Find Full Text PDFMult Scler
December 2024
Department of Neurology, Fleni, Buenos Aires, Argentina.
Live-attenuated vaccines provide robust immunity against diseases like tuberculosis, measles, mumps, rubella, polio, yellow fever, dengue, typhoid fever, and varicella, with just one or a few doses. However, concerns arise regarding potential pathogen reversion to virulence, which is particularly risky for immunocompromised individuals, contraindicating their administration in multiple sclerosis (MS) patients under modified disease treatments due to the possibility of triggering infections, or stimulating the immune system, precipitating new exacerbations. On the contrary, these vaccines offer enduring immunity that is crucial for protecting MS patients from endemic infectious diseases, leading to severe complications if contracted.
View Article and Find Full Text PDFPediatr Dermatol
December 2024
Department of Pediatrics and Dermatology, SSM Health and Saint Louis University, St. Louis, Missouri, USA.
Background And Objectives: A wholesale recommendation against use of live virus vaccines in patients treated with any medication classified as an immunosuppressant has been based on global theoretical concerns rather than clinical outcomes for specific drugs.
Methods: A retrospective search of electronic medical records identified patients seen by the Allergy and/or Dermatology services between 2017 and 2023 at a pediatric tertiary center who received a live attenuated vaccine during the 6 week interval prior to the first prescription for methotrexate or dupilumab until 6 weeks after the last prescription for either medication. Individual charts of identified patients were manually reviewed for evidence of adverse events.
Environ Sci Technol
December 2024
Department of Civil and Environmental Engineering, Rice University, Houston, Texas 77005, United States.
Wastewater surveillance of vaccine-preventable diseases may provide early warning of outbreaks and identify areas to target for immunization. To advance wastewater monitoring of measles, mumps, and rubella viruses, we developed and validated a multiplexed RT-ddPCR assay for the detection of their RNA. Because the measles-mumps-rubella (MMR) vaccine is an attenuated live virus vaccine, we also developed an assay that distinguishes between wild-type and vaccine strains of measles in wastewater and validated it using a wastewater sample collected from a facility with an active measles outbreak.
View Article and Find Full Text PDFVaccines (Basel)
November 2024
NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO WPRO Regional Reference Measles/Rubella Laboratory, Beijing 102206, China.
Human respiratory syncytial virus (HRSV) imposes a significant disease burden on infants and the elderly. Intranasal immunization using attenuated live vaccines and certain vector vaccines against HRSV has completed phase II clinical trials with good safety and efficacy.Recombinant protein vaccines for mucosal immunization require potent mucosal adjuvants.
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