Scientists at The Wistar Institute discovered that poor T cell responsiveness limits current approaches to therapeutic vaccines. They found that the immune system's ongoing stimulus during chronic infection prevents optimal response to vaccines, which may be improved by lowering viral load or enhancing T cell function.
Researchers discovered a fruit fly gene, f, that codes for a fusion protein enabling insect viruses to infect cells. The study found that the gene was originally transferred from an insect to a virus through recombination, leading to significant changes in viral behavior and pathology.
Researchers have found that adeno-associated virus type 2 (AAV2) can selectively kill cancer cells while leaving healthy cells intact. The study suggests that AAV2 recognizes abnormal cancer cells and induces apoptosis, making it a promising candidate for an anti-cancer therapy.
Researchers have identified a specific region on the yellow fever virus protein that elicits an immune response, which could help improve existing vaccines and reduce severe side effects. The study found that antibodies produced by the immune system interact with this part of the protein to fight off infection.
A new study at the University of Wisconsin-Madison has streamlined a method for making large quantities of human papillomavirus, a major human pathogen. The technique allows scientists to culture any of the virus's 100 subtypes and genetically manipulate it, enabling faster development of therapeutic drugs and new vaccines.
Scientists have developed a method to create an infectious form of the hepatitis C virus in a test tube, allowing researchers to study its life cycle and develop new drugs. This breakthrough could lead to better understanding and treatment of liver diseases associated with HCV.
Research found that stress before vaccination led to better immune responses and greater protection nine months later. Stress may prime the immune system for oncoming trauma, enhancing its long-term memory for antigens.
A limited study of 15 horses found that MLV vaccines consistently had lower fevers, no neurological disorders and less virus in nasal fluids. The horses were then exposed to the herpes virus after vaccination with either an MLV or inactivated vaccine.
Researchers discovered that HIV-1 induces RNA interference in human cells but has a strategy to combat this defense. The protein Tat suppresses RNA silencing, helping the virus evade the cell's natural immune response.
A study published in the New England Journal of Medicine found that two to three percent of people with colon cancer may have Lynch syndrome mutations. Prescreening for the syndrome can help determine genetic counseling and testing needs, as well as estimate patient prognosis.
Researchers at UCLA have discovered a molecule on immune cells that plays a critical role in the sexual transmission of HIV. Blocking this molecule could prevent HIV from spreading infection, potentially reducing its ability to infect new individuals.
Researchers have identified a new tumor suppressor gene, ARLTS1, that increases the risk of cancer in some individuals. The findings suggest that ARLTS1 may play an important role in the development of certain types of cancer, particularly familial cancers.
Acute stress temporarily mobilizes all major types of immune cells, which may enhance the immune system's ability to protect against infections and diseases. However, chronic stress may weaken the immune system, and excessive stress can worsen pre-existing inflammatory illnesses.
Researchers at NYU studied the body's response to viral encephalitis and found that neurons are sensitive to protective effects of type I interferons. Interferons induce pathways to fight the virus' spread but can be ineffective in certain stages, leaving infected neurons vulnerable.
Researchers found that a specific viral protein EBNA3C triggers uncontrolled growth of B cells, initiating cancer. The study provides new insights into how Epstein-Barr virus drives cancer and paves the way for developing targeted therapeutics.
A collaborative study by UCL scientists found that HIV-1 subtype B spread through at least six separate transmission chains in the UK, contradicting the prevailing belief of a single initial entry. The study suggests changes in sexual behavior and lack of impact from antiretroviral therapy may have slowed the epidemic growth.
Researchers discover how hepatitis C virus (HCV) replicates unchecked despite the presence of immune defenses triggered by the RIG-I protein. HCV produces a viral protease that disrupts the signaling pathway, allowing it to continue replication. Protease inhibitors show promise in treating HCV and possibly other viral infections
Researchers have found that 47% of ALS patients exhibit reverse transcriptase activity, suggesting a potential link to retroviruses. Further study is needed to determine if this reflects activation of an endogenous retrovirus or infection with a novel exogenous retrovirus.
Researchers at Thomas Jefferson University have discovered that interleukin-7 (IL-7) can stimulate latent HIV viruses, making them vulnerable to drugs and the immune system. The new technique may lead to improved treatments for HIV infection and could be a step towards complete viral eradication.
Researchers from CANVAC, a Canadian network of immunology and virology experts, have developed a new method to assess thymus function using only blood samples. They found that HIV-infected individuals experience decreased thymic function in the first months after infection, leading to lower T-lymphocyte production.
The HMS vaccine, dl5-29, outperformed two established vaccines in animal models, demonstrating a stronger T cell response and broader antibody protection. The results suggest that dl5-29 is the most compelling new vaccine candidate for genital herpes, with potential to prevent infection and recurring disease.
The study demonstrates the value of clinical cutoffs in evaluating HIV drug resistance information. Clinical cutoffs based on a large outcomes database provide physicians with clinically relevant resistance information.
A team from Pacific Northwest National Laboratory and Oregon Health & Science University has discovered a record number of proteins for the highly infectious human cytomegalovirus, doubling the previously identified amount. The study reveals that HCMV may express as many as 200 proteins at various points in its life cycle.
Basic research on HIV is leading to new therapies that deny initial entry into cells. Fast-moving research on naturally occurring antiviral factors is opening the way for a new class of anti-HIV drugs.
A research team from Purdue University has successfully created RNA-based nanoscale structures, which could be used as building blocks for microscopic machines. The researchers have developed methods to self-assemble RNA molecules into complex shapes, such as arrays that can form the scaffolding on which other components could be mounted.
Researchers created a map of the influenza A (H3N2) virus's antigenic and genetic evolution from 1968 to 2003, revealing 11 closely related virus clusters. The approach will aid in monitoring antigenic differences among vaccine strains and predicting infection success of emerging viruses.
A recent study by researchers at the Gladstone Institute of Virology and Immunology investigated potential superinfection involving variations within HIV-1B. The findings, presented at the XV International AIDS Conference, suggest that superinfection may be restricted to a short window period after seroconversion.
The Guava EasyCD4 and EasyCD8 assays provide comparable accuracy to flow cytometry methods but are simpler and more affordable, enabling global access to affordable HIV/AIDS patient monitoring. These lower-cost alternatives can significantly improve quality of care and life for millions of HIV+ patients in resource-limited countries.
A new triple-vaccine strategy has been shown to stimulate a strong HIV-specific immune response in monkeys, demonstrating its potential as an improved method of protection against the virus. The approach uses a series of three vaccines that build on each other to generate a stronger immune response than might otherwise be possible.
Scientists found that a protein inside the rabies virus can enhance the immune response against foreign proteins, enabling the creation of vaccines against other infectious agents. The technique could lead to the development of longer-lasting vaccines against diseases like anthrax.
Betty Ann Forbes has made significant impacts in clinical microbiology and education through her extensive research, publication programs, and editorial work. Her leadership roles in the American Board of Medical Microbiology and esteemed journal publications have earned her a respected reputation among microbiologists nationwide.
Campbell's work on bacteriophage lambda demonstrated the relationship between its genome and host, leading to key findings in genetic and biochemical studies of site-specific recombination. His extensive contributions also include discovery of nonsense mutations, bacterial gene regulation, and microbial population dynamics research.
Schiff's dedication to undergraduate education has led to numerous student awards and publications, as well as her election to the University of Minnesota's Academy of Distinguished Teachers. Her commitment to excellence in teaching and mentoring is recognized through the Carski Foundation Award.
Johnson-Thompson is recognized for her dedication to mentoring and increasing diversity in the field of microbiology. She has initiated various outreach initiatives, including a poster highlighting the contributions of women microbiologists.
Weissfeld's work on policy issues has had a significant impact on the profession of clinical microbiology. She chairs ASM's Professional Affairs Committee and serves on various committees reviewing legislation affecting microbiology laboratory practice.
Campbell's groundbreaking research on bacteriophage lambda paved the way for studies on site-specific recombination and genome manipulation. His work has significantly advanced our understanding of microbial population dynamics and genome evolution.
Researchers at Jefferson Medical College have found that the HIV virus produces proteins that trigger biochemical pathways in the brain, resulting in brain cell death and dementia. The study suggests that removing the virus or its associated proteins may be an effective way to prevent or treat HIV-related dementia.
Researchers have discovered a gene that inhibits NF-kB, a cellular transcription factor involved in anti-viral immune responses and inflammation. The study found that this gene, K1L, prevents degradation of the cellular inhibitor of NF-kB, ultimately halting viral replication.
Dr. Blossom A. Damania has been awarded the $50,000 Gertrude B. Elion Cancer Research Award for her research on tumor virology and Kaposi's sarcoma-associated herpesvirus (KSHV). This award recognizes her groundbreaking work in deciphering how the virus can transform cells into malignancies.
A study led by Baylor College of Medicine and the University of Rochester Medical Center is testing a vaccine against H9 bird flu, which infected several people in Hong Kong in 1999. The goal is to prepare for potential transmission of the virus from person to person.
Researchers at NIAID have found that mouse immune systems produce antibodies capable of single-handedly neutralizing the SARS virus. This discovery confirms that vaccines triggering antibodies to the SARS virus are on the right track, and could lead to a faster development of effective vaccines or antiviral drugs.
Researchers found that dual-infection with HIV and GBV-C leads to better outcomes, including slower progression to AIDS and lower mortality rates. Understanding the mechanism behind this phenomenon could lead to the development of improved therapies.
Research at Ohio State University found that acute stress can significantly boost the immune system's response, with stressed animals showing a two-to-four times higher reaction to chemical or protein antigens. This effect was observed even after several weeks to months of re-exposure without further restraint.
The Netherlands has established two new research centers, NIVAREC and PRIOR, to develop and produce flu vaccines and tackle poverty-related infectious diseases. The centers aim to strengthen cooperation between researchers from different institutes and foster knowledge infrastructure in developing countries.
Researchers have discovered an RNA lariat structure that may explain the long-standing mechanism of template shift in retroviral replication. The finding provides new insights into the process of reverse transcription and has potential implications for understanding HIV-1 replication and developing targeted therapies.
Researchers believe SARS evolved from a rare recombination of mammalian and avian viruses, enabling it to evade human immune systems. The study sheds light on the evolutionary history of SARS, which may hold clues to designing effective treatments and vaccines.
Researchers at the US Army Medical Research Institute of Infectious Diseases have developed a hantavirus vaccine that elicited a potent neutralizing antibody response in rhesus macaques. The vaccine, which uses a naked DNA approach, also provided protection against hamster infection when administered after exposure.
The study reveals that retroviral protein p12 stimulates the growth and proliferation of immune cells known as T lymphocytes by producing interleukin 2 (IL-2). This finding supports the view that HTLV-1 virus replicates mainly by causing infected cells to divide and proliferate.
Dawn Wooley, a WSU researcher, is working with a team of universities to develop diagnostic tools, therapeutics, and vaccines for deadly agents and viruses. The Midwest Center of Excellence aims to create solutions to counter biological threats, with a focus on airborne agents.
A study by Ohio State University researchers found that even mild depression in caregivers can lead to increased inflammation, which is associated with various age-related illnesses. Chronic inflammation has been linked to declines in physical function and an increased risk of mortality.
Researchers at SLU have successfully deciphered the molecular structure of recombination protein O (RecO), crucial for accurate genomic DNA replication. This breakthrough may aid pharmaceutical researchers in developing more effective drugs and basic scientists in understanding gene function.
Rao's research aims to understand the mechanism of virus assembly, a crucial step in viral transmission and disease spread. By studying the brome mosaic virus, his lab hopes to develop new strategies for blocking virus assembly and preventing disease.
Four research organizations will receive funding to develop promising HIV vaccine candidates using DNA vaccines, virus vector vaccines, subunit vaccines, and virus-like particle vaccines. Researchers aim to induce strong cellular and antibody immune responses in animal models.
Hepatitis A vaccine boosters are unnecessary for healthy individuals, according to a meeting of experts; protective antibody amounts persist beyond 10 years after primary vaccination. Further investigations are needed for special patient groups.
Purdue biologists will conduct basic research on viruses and develop antiviral compounds using advanced technology, aiming to enhance the national defense effort and address emerging infectious diseases. The grants could also support the creation of a new facility for structural biology at Purdue.
The Mayo Clinic Proceedings has released an early review of West Nile virus to aid clinicians and the public. The review, written by Priya Sampathkumar, M.D., provides the most current information on the disease's epidemiology, virology, transmission, management, and prevention in humans and animals.
Researchers found that recombinant interferons were effective against SARS-CoV replication, with interferon beta showing prophylactic protection and antiviral potential. Interferon alpha was less effective but could be a potential drug of choice in combination with other antiviral drugs.
A joint U.S.-Georgian team aims to develop a novel treatment against bacterial pathogens causing salmonella infection. The grant supports phage therapy research to prevent massive outbreaks and address growing antibiotic resistance.
A new study led by Janice Kiecolt-Glaser and Ronald Glaser found that caregivers of chronically ill patients experience prolonged immune disregulation, increasing their risk for age-related diseases. The research suggests that chronic stress and caregiving duties can have lasting effects on the immune system.
Researchers at Frankfurt University Medical School have assessed the antiviral potential of five drugs against the SARS coronavirus. Glycyrrhizin, an antiviral agent proven to treat HIV-1 and hepatitis C, is the most active compound in inhibiting replication, with increased nitric oxide synthesis contributing to its effectiveness.