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Related Experiment Video

Updated: Jun 4, 2025

Co-immunoprecipitation Assay for Studying Functional Interactions Between Receptors and Enzymes

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Published on: September 28, 2018

Molecular and cellular mechanisms of PDAC progression based on RETN-CAP1-mediated macrophage-fibroblast crosstalk:

Guangquan Zhang¹, Xiaozhun Huang², Ruixi Li¹

¹Department of Hepatobiliary and Pancreatic Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China.

International Journal of Biological Macromolecules

|December 24, 2024

Summary

This study reveals how TN-CAP1 promotes pancreatic cancer (PDAC) progression by enhancing macrophage-fibroblast interactions. ITGB5 and ITGB1 proteins boost tumor cell growth and metastasis by activating the FAK/PI3K/AKT pathway.

Keywords:

ITGB5 and ITGB1 recombinant proteins Macrophage-fibroblast crosstalk Molecular and cellular mechanisms PDAC TN-CAP1 mediated

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Highly Efficient Transfection of Human THP-1 Macrophages by Nucleofection

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Published on: September 2, 2014

Area of Science:

Oncology
Cell Biology
Immunology

Background:

Pancreatic ductal adenocarcinoma (PDAC) exhibits a poor prognosis, necessitating a deeper understanding of its progression mechanisms.
Tumor microenvironment interactions, particularly between macrophages and fibroblasts, play a critical role in PDAC development.

Purpose of the Study:

To elucidate the mechanism of TN-CAP1-mediated macrophage-fibroblast cross-talk in PDAC progression.
To evaluate the therapeutic potential of integrin beta 5 (ITGB5) and integrin beta 1 (ITGB1) recombinant proteins in PDAC.

Main Methods:

Immunohistochemistry to analyze TN-CAP1 expression in PDAC tissues.
In vitro co-culture models of macrophages and fibroblasts.
Manipulation of ITGB5 and ITGB1 protein levels to assess effects on tumor cell proliferation, migration, and invasion.
Western blot and RT-PCR to analyze signaling pathway activation (FAK/PI3K/AKT).

Main Results:

TN-CAP1 expression was higher in PDAC tissues compared to normal tissues.
ITGB5 and ITGB1 recombinant proteins significantly enhanced macrophage-fibroblast interactions in vitro.
These proteins promoted PDAC cell proliferation, migration, and invasion.
Activation of the FAK/PI3K/AKT signaling pathway was observed, correlating with enhanced tumor aggressiveness.

Conclusions:

TN-CAP1 facilitates PDAC progression through macrophage-fibroblast cross-talk.
ITGB5 and ITGB1 recombinant proteins enhance PDAC cell aggressiveness by activating the FAK/PI3K/AKT pathway.
ITGB5 and ITGB1 represent potential therapeutic targets for PDAC treatment.