Biphenotypic Differentiation of Pancreatic Cancer in 3-Dimensional Culture.

Abstract:

OBJECTIVE:Pancreatic ductal adenocarcinoma (PDAC) is the third most common cause of cancer death in the United States. Improved characterized models of PDAC are needed for drug screening. METHODS:We grew 4 established pancreatic cancer cell lines in hanging drop cultures to produce spheroids. We also grew organoids from explanted xenografted PDAC and surgically resected primary PDAC. We performed transmission and scanning electron microscopy and compared findings with those of the normal pancreatic duct. We also performed single-cell cloning to determine the potential options for differentiation. RESULTS:Spheroids contained tight junctions and desmosomes but lacked zymogen granules, as expected. The former features were present in normal pancreatic duct but absent from PDAC cell lines grown in standard 2-dimensional culture. Spheroids functionally excluded macromolecules in whole mounts. Cells on the surface of PDAC spheroids were carpeted by microvilli except for rare cells with prominent stereocilia. Carpets of microvilli were also seen in low passage organoids produced from xenografts and surgically resected human PDAC, in addition to normal human pancreatic duct. We performed single-cell cloning and resulting spheroids produced both cell phenotypes at the same approximate ratios as those from bulk cultures. CONCLUSIONS:Pancreatic cancer spheroids/organoids are capable of biphenotypic differentiation.

journal_name

Pancreas

journal_title

Pancreas

authors

Matsushita Y,Smith B,Delannoy M,Trujillo MA,Chianchiano P,McMillan R,Kamiyama H,Liang H,Thompson ED,Hruban RH,Matsui W,Wood LD,Roberts NJ,Eshleman JR

doi

10.1097/MPA.0000000000001390

subject

Has Abstract

pub_date

2019-10-01 00:00:00

pages

1225-1231

issue

9

eissn

0885-3177

issn

1536-4828

journal_volume

48

pub_type

杂志文章

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