Heat shock protein 60 levels in tissue and circulating exosomes in human large bowel cancer before and after ablative surgery.

Abstract:

BACKGROUND:Heat shock protein 60 (Hsp60) is a chaperonin involved in tumorigenesis, but its participation in tumor development and progression is not well understood and its value as a tumor biomarker has not been fully elucidated. In the current study, the authors presented evidence supporting the theory that Hsp60 has potential as a biomarker as well as a therapeutic target in patients with large bowel cancer. METHODS:The authors studied a population of 97 subjects, including patients and controls. Immunomorphology, Western blot analysis, and quantitative real-time polymerase chain reaction were performed on tissue specimens. Exosomes were isolated from blood and characterized by electron microscopy, biochemical tests, and Western blot analysis. RESULTS:Hsp60 was found to be increased in cancerous tissue, in which it was localized in the tumor cell plasma membrane, and in the interstitium associated with cells of the immune system, in which it was associated with exosomes liberated by tumor cells and, as such, circulated in the blood. An interesting finding was that these parameters returned to normal shortly after tumor removal. CONCLUSIONS:The data from the current study suggested that Hsp60 is a good candidate for theranostics applied to patients with large bowel carcinoma and encourage similar research among patients with other tumors in which Hsp60 has been implicated.

journal_name

Cancer

journal_title

Cancer

authors

Campanella C,Rappa F,Sciumè C,Marino Gammazza A,Barone R,Bucchieri F,David S,Curcurù G,Caruso Bavisotto C,Pitruzzella A,Geraci G,Modica G,Farina F,Zummo G,Fais S,Conway de Macario E,Macario AJ,Cappello F

doi

10.1002/cncr.29499

subject

Has Abstract

pub_date

2015-09-15 00:00:00

pages

3230-9

issue

18

eissn

0008-543X

issn

1097-0142

journal_volume

121

pub_type

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