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Retroviral Scanning: Mapping MLV Integration Sites to Define Cell-specific Regulatory Regions

Retroviral Scanning: Mapping MLV Integration Sites to Define Cell-specific Regulatory Regions

Published on: May 28, 2017

Tracing complement-retroviral interactions from mucosal surfaces to the lymphatic tissue.

Zoltan Banki¹, Anna Soederholm, Brigitte Mullauer

¹Department of Hygiene, Microbiology and Social Medicine and Ludwig Boltzmann Institute for AIDS Research, Innsbruck Medical University, Austria.

Frontiers in Bioscience : a Journal and Virtual Library

|November 28, 2006

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Retroviruses evade complement-mediated lysis by adapting protection mechanisms. This interaction leads to complement protein coating, facilitating interactions with complement receptor-expressing cells during pathogenesis.

Area of Science:

Immunology
Virology
Molecular Biology

Background:

Retroviruses encounter complement and complement receptor (CR)-positive cells throughout their pathogenesis.
All tested retroviruses activate the complement system, a key component of the innate immune response.

Purpose of the Study:

To review the complex interactions between complement and retroviruses.
To understand how retroviruses evade complement-mediated damage and facilitate infection.

Main Methods:

Literature review of existing studies on complement-retroviral interactions.
Analysis of viral adaptation strategies against complement activation.

Main Results:

Retroviruses have evolved mechanisms to suppress complement activation below lysis thresholds.

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Determining 3'-Termini and Sequences of Nascent Single-Stranded Viral DNA Molecules during HIV-1 Reverse Transcription in Infected Cells

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Complement activation results in retroviruses being opsonized with complement proteins.

Opsonized retroviruses gain enhanced interaction with CR-expressing cells.

Conclusions:

Retroviruses employ sophisticated strategies to navigate the complement system.
These interactions are crucial for viral dissemination, particularly to lymphatic tissues.