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Gelfoam histoculture provides a valuable tool for experimental studies of normal and pathological tissue physiology. It allows us to understand cell-cell interactions by mirroring their original spatial relationship within body tissues. Gelfoam histoculture can be employed to model host-pathogen interactions mimicking in vivo conditions in vitro. In the present chapter, we describe a protocol to process and infect lymphoid tissue explants with HIV and maintain them in Gelfoam histoculture at the liquid-air interface. The Gelfoam histocultures with human immunodeficiency virus (HIV) type 1-infected tissues have been used to further understand the biology of early HIV-1 pathogenesis, as well as a novel ex vivo platform to test the efficacy and toxicity of antiviral drugs.
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http://dx.doi.org/10.1007/978-1-4939-7745-1_17 | DOI Listing |
Anticancer Res
June 2025
AntiCancer Inc., San Diego, CA, U.S.A.;
Background/aim: Tumor immunology and immunotherapy have been intensely researched recently, especially with the development of immune checkpoint inhibitors (ICIs). However, only a small percentage of patients respond to ICIs, and this response is limited to a minority of cancer types, such as colon cancer, lung cancer, and melanoma. The aim of the present study was to develop an imageable -like system to directly visualize tumor immunology and immunotherapy in real-time, to further understand tumor immunology and develop improved tumor immunotherapy.
View Article and Find Full Text PDFAnticancer Res
December 2020
AntiCancer Inc, San Diego, CA, U.S.A.
Methods Mol Biol
January 2019
Yokohama Rosai Hospital, Yokohama City, Kanagawa Prefecture, Japan.
Distant organ colonization by cancer cells is the governing step of metastasis. We review in this chapter the modeling and imaging of organ colonization by cancer cells in Gelfoam histoculture. ANIP 973 lung cancer cells expressing green fluorescent protein (GFP) were injected intravenously into nude mice, whereby they formed brilliantly fluorescing metastatic colonies on the mouse lung.
View Article and Find Full Text PDFMethods Mol Biol
January 2019
AntiCancer Inc., San Diego, CA, USA.
Cell and tissue culture can be performed on different substrates such as on plastic, in Matrigel™, and on Gelfoam, a sponge matrix. Each of these substrates consists of a very different surface, ranging from hard and inflexible, a gel, and a sponge-matrix, respectively. Folkman and Moscona found that cell shape was tightly coupled to proper gene expression.
View Article and Find Full Text PDFMethods Mol Biol
January 2019
AntiCancer Inc., San Diego, CA, USA.
DNA damage repair in response to UVC irradiation was imaged in cancer cells growing in Gelfoam histoculture. UVC-induced DNA damage repair was imaged with green fluorescent protein (GFP) fused to the DNA damage response (DDR)-related binding protein 53BP1 in MiaPaCa-2 human pancreatic cancer cells. Three-dimensional Gelfoam histocultures and confocal imaging enabled 53BP1-GFP nuclear foci to be observed within 1 h after UVC irradiation, indicating the onset of DNA damage repair response.
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