Sf9 Cells

Sf9 cells are a continuous insect cell line derived from the ovaries of the fall armyworm, Spodoptera frugiperda, and are widely used to study infection and produce recombinant proteins. Their main utility comes from susceptibility to baculoviruses, which introduce engineered genes into the cells and direct high-level expression of viral antigens, immune proteins, or other research targets. In immunology and infection research, Sf9 cells support production of vaccine components, antibodies, and pathogen proteins, as well as investigations of baculovirus biology and host–virus interactions. Their robust growth and scalable culture make them a practical bridge between molecular studies and preclinical biotechnology applications.

Sf9 Cells - Related Videos

Research

JoVE Journal - Neuroscience

Live-imaging of PKC Translocation in Sf9 Cells and in Aplysia Sensory Neurons

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Cited by 14 •

2011

In this video, we demonstrate visualization of PKC translocation in living cells using fluorescently tagged PKCs.

Transient Expression of Foreign Genes in Insect Cells (sf9) for Protein Functional Assay

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Cited by 8 •

2018

This protocol describes a heat shock-induced protein expression system (pDHsp/V5-His/sf9 cell system), which can be used for either expressing foreign proteins or evaluating the anti-apoptotic activity of potential foreign proteins and their truncated amino acids in insect cells.

Single-Molecule Analysis of Sf9 Purified Superprocessive Kinesin-3 Family Motors

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Cited by 2 •

2022

This study details purification of KIF1A(1-393LZ), a member of kinesin-3 family, using Sf9-baculovirus expression system. In vitro single-molecule and multi-motor gliding analysis of these purified motors exhibited robust motility properties comparable to motors from mammalian cell lysate. Thus, Sf9-baculovirus system is amenable to express and purify motor protein of interest.

Generation of Chikungunya Virus-Like Particles Using Baculovirus Expression System in Insect Cells

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2025

This video shows how virus-like particles, VLPs are generated by infecting insect cells with a recombinant baculovirus carrying the chikungunya virus gene cassette. The recombinant virus infects cells, leading to VLP formation, assembly, and release into the culture medium for potential use in vaccine production.

Transient Expression and Cellular Localization of Recombinant Proteins in Cultured Insect Cells

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Cited by 6 •

2017

Nonlytic insect cell expression systems are underutilized for production, cellular trafficking/localization, and recombinant protein functional analysis. Here, we describe methods to generate expression vectors and subsequent transient protein expression in commercially available lepidopteran cell lines. The co-localization of Bemisia tabaci aquaporins with subcellular fluorescent marker proteins is also presented.

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