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Related Concept Videos

Immunodeficiency Diseases01:25

Immunodeficiency Diseases

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Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
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Cytomegalovirus Disease01:27

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Cytomegalovirus (CMV) disease is caused by human cytomegalovirus, a double-stranded DNA virus of the Herpesviridae family. While primary CMV infection is often asymptomatic in immunocompetent individuals, the virus can cause severe disease in neonates and immunocompromised patients. CMV is the most common cause of congenital viral infection in the United States, and a major pathogen in solid organ and hematopoietic stem cell transplant recipients.CMV is transmitted via bodily fluids, sexual...
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Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

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Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
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Sexually Transmitted Infections01:26

Sexually Transmitted Infections

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Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
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Tumor Immunotherapy01:27

Tumor Immunotherapy

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Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
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Inhibitors of Viral Protein Synthesis01:30

Inhibitors of Viral Protein Synthesis

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Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
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Use of Interferon-γ Enzyme-linked Immunospot Assay to Characterize Novel T-cell Epitopes of Human Papillomavirus
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Human papillomavirus and immunosuppression.

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Summary
This summary is machine-generated.

Chronic immunosuppression increases the risk of persistent human papillomavirus (HPV) infections and related diseases. This includes HPV-associated cancers and skin conditions, particularly in immunocompromised individuals.

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Ex Vivo Infection of Human Lymphoid Tissue and Female Genital Mucosa with Human Immunodeficiency Virus 1 and Histoculture
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Area of Science:

  • Immunology
  • Oncology
  • Virology

Background:

  • Chronic immunosuppression is a significant risk factor for persistent human papillomavirus (HPV) infections and associated diseases.
  • Anogenital cancers and precursor lesions are critical in HIV medicine, with high prevalence in HIV-positive men who have sex with men.
  • HPV-induced skin warts are common in organ transplant recipients (OTRs) and severe in primary immunodeficiencies.

Purpose of the Study:

  • To review the impact of chronic immunosuppression on HPV infections and related diseases.
  • To highlight the increased risk of HPV-associated cancers and skin conditions in immunocompromised populations.
  • To discuss screening strategies for high-risk groups, such as HIV-positive men who have sex with men.

Main Methods:

  • Literature review of studies on HPV infections in immunosuppressed individuals.
  • Analysis of disease prevalence and risk factors in specific populations (HIV-positive individuals, OTRs).
  • Examination of the role of β-papillomavirus replication and viral DNA load in skin cancer development.

Main Results:

  • Chronic immunosuppression facilitates persistent HPV infections and HPV-associated diseases.
  • HIV-positive men who have sex with men have a high prevalence of anal intraepithelial neoplasia and anal cancer.
  • OTRs experience frequent HPV-induced skin warts and a significantly increased risk of cutaneous squamous cell carcinoma.

Conclusions:

  • Immunosuppression significantly elevates the risk of HPV infections, anogenital cancers, and skin cancers.
  • Screening for HPV-related conditions, similar to cervical cancer screening, is recommended for high-risk groups.
  • Understanding HPV replication in immunosuppressed states is crucial for managing associated malignancies.