Related Experiment Video
Updated: Sep 19, 2025

11:18
Infection of Zebrafish Embryos with Intracellular Bacterial Pathogens
Published on: March 15, 2012
44.0K
Virus attacks fish by muscling its way into cells
Ping-Ping Liu1, Zhe Wei1, Xian-Wei Wang1,2
1School of Life Sciences, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China.
Elife
|June 2, 2025
Summary
Nervous necrosis virus, a pathogen affecting aquatic animals, commonly enters cells through endocytosis. This study reveals it can also utilize macropinocytosis for cellular entry.
Area of Science:
- Virology
- Cell Biology
- Infectious Diseases
Background:
- Nervous necrosis virus (NNV) is a significant pathogen impacting various aquatic species.
- Understanding NNV's cellular entry mechanisms is crucial for developing effective disease control strategies.
Discussion:
- This research investigates alternative pathways for NNV cellular internalization.
- The study highlights macropinocytosis as a viable route for NNV entry, in addition to the well-established endocytosis pathway.
Key Insights:
- NNV can efficiently enter host cells via macropinocytosis.
- This finding expands our knowledge of viral entry mechanisms and host-pathogen interactions.
Outlook:
- Further research can explore the specific molecular players involved in NNV macropinocytosis.
- This knowledge may lead to novel therapeutic targets for NNV infections in aquaculture.
Keywords:
cell biologyinfectious diseasemacropinocytosismicrobiologymyosin light chain 3nervous necrosis virusreceptorvirusesMore Related Videos
Related Concept Videos
Intracellular Movement of Viruses and Bacteria
2.9K
Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include those belonging to the genus Rickettsia responsible for conditions such as rocky mountain spotted fever and the Mediterranean spotted fever; Chlamydia, a genus responsible for a sexually transmitted disease; Coxiella burnetii, an agent responsible for Q fever. Viral pathogens include vaccinia—a poxvirus, and herpes simplex virus—a...
2.9K
Diversity of Protists II
154
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
154
Osmoregulation in Fishes
50.5K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
50.5K
What are Viruses?
117.7K
Overview
117.7K
Introduction to Virus
266
Viruses are unique biological entities that blur the boundary between living and non-living systems. Although they lack cellular structure and metabolic processes, they can exhibit characteristics of life when infecting a host. Their defining feature is a nucleic acid core, composed of either DNA or RNA, encapsulated within a protein coat called a capsid. This simple structure allows them to invade host cells and use their machinery for replication efficiently.Viral Structure and...
266

