PROTEASOMAL AND CALPAIN PROTEOLYSIS SYSTEMS IN DIFFERENT MOLECULAR SUBTYPES OF BREAST CANCER

The characteristics of calpain and proteasome systems in different molecular subtypes of breast cancer were studied. Tumor samples were obtained from 147 breast cancer patients, who were not previously treated with neoadjuvant therapy. Changes in the chymotrypsin-like proteasome activity and the cor...

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Main Authors: E. E. Shashova, A. V. Doroshenko, L. N. Bondar, E. M. Slonimskaya, I. V. Kondakova
Format: Article
Language:Russian
Published: Russian Academy of Sciences, Tomsk National Research Medical Center 2017-07-01
Series:Сибирский онкологический журнал
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Online Access:https://www.siboncoj.ru/jour/article/view/538
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author E. E. Shashova
A. V. Doroshenko
L. N. Bondar
E. M. Slonimskaya
I. V. Kondakova
author_facet E. E. Shashova
A. V. Doroshenko
L. N. Bondar
E. M. Slonimskaya
I. V. Kondakova
author_sort E. E. Shashova
collection DOAJ
description The characteristics of calpain and proteasome systems in different molecular subtypes of breast cancer were studied. Tumor samples were obtained from 147 breast cancer patients, who were not previously treated with neoadjuvant therapy. Changes in the chymotrypsin-like proteasome activity and the correlation between proteasome and calpain activities were shown in different molecular subtypes of breast cancer. No changes in the calpain activity and proteasome subunits specific for various molecular subtypes of breast cancer were found. Our results show that the proteasome function undergoes changes depending on the receptor expression by tumor cells and this aspect should be further investigated.
format Article
id doaj-art-237c11c4bad64dfcbeb3516eb0ebd342
institution DOAJ
issn 1814-4861
2312-3168
language Russian
publishDate 2017-07-01
publisher Russian Academy of Sciences, Tomsk National Research Medical Center
record_format Article
series Сибирский онкологический журнал
spelling doaj-art-237c11c4bad64dfcbeb3516eb0ebd3422025-08-20T03:18:26ZrusRussian Academy of Sciences, Tomsk National Research Medical CenterСибирский онкологический журнал1814-48612312-31682017-07-01163333910.21294/1814-4861-2017-16-3-33-39448PROTEASOMAL AND CALPAIN PROTEOLYSIS SYSTEMS IN DIFFERENT MOLECULAR SUBTYPES OF BREAST CANCERE. E. Shashova0A. V. Doroshenko1L. N. Bondar2E. M. Slonimskaya3I. V. Kondakova4I.V. Kondakova1 Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, TomskI.V. Kondakova1 Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, TomskI.V. Kondakova1 Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, TomskI.V. Kondakova1 Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk; Siberian State Medical University, Russia, TomskI.V. Kondakova1 Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, TomskThe characteristics of calpain and proteasome systems in different molecular subtypes of breast cancer were studied. Tumor samples were obtained from 147 breast cancer patients, who were not previously treated with neoadjuvant therapy. Changes in the chymotrypsin-like proteasome activity and the correlation between proteasome and calpain activities were shown in different molecular subtypes of breast cancer. No changes in the calpain activity and proteasome subunits specific for various molecular subtypes of breast cancer were found. Our results show that the proteasome function undergoes changes depending on the receptor expression by tumor cells and this aspect should be further investigated.https://www.siboncoj.ru/jour/article/view/538molecular subtypes of breast cancerсhymotrypsin-like activity of proteasomescaspase-like activity of proteasomessubunits of proteasomescalpain activity
spellingShingle E. E. Shashova
A. V. Doroshenko
L. N. Bondar
E. M. Slonimskaya
I. V. Kondakova
PROTEASOMAL AND CALPAIN PROTEOLYSIS SYSTEMS IN DIFFERENT MOLECULAR SUBTYPES OF BREAST CANCER
Сибирский онкологический журнал
molecular subtypes of breast cancer
сhymotrypsin-like activity of proteasomes
caspase-like activity of proteasomes
subunits of proteasomes
calpain activity
title PROTEASOMAL AND CALPAIN PROTEOLYSIS SYSTEMS IN DIFFERENT MOLECULAR SUBTYPES OF BREAST CANCER
title_full PROTEASOMAL AND CALPAIN PROTEOLYSIS SYSTEMS IN DIFFERENT MOLECULAR SUBTYPES OF BREAST CANCER
title_fullStr PROTEASOMAL AND CALPAIN PROTEOLYSIS SYSTEMS IN DIFFERENT MOLECULAR SUBTYPES OF BREAST CANCER
title_full_unstemmed PROTEASOMAL AND CALPAIN PROTEOLYSIS SYSTEMS IN DIFFERENT MOLECULAR SUBTYPES OF BREAST CANCER
title_short PROTEASOMAL AND CALPAIN PROTEOLYSIS SYSTEMS IN DIFFERENT MOLECULAR SUBTYPES OF BREAST CANCER
title_sort proteasomal and calpain proteolysis systems in different molecular subtypes of breast cancer
topic molecular subtypes of breast cancer
сhymotrypsin-like activity of proteasomes
caspase-like activity of proteasomes
subunits of proteasomes
calpain activity
url https://www.siboncoj.ru/jour/article/view/538
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AT avdoroshenko proteasomalandcalpainproteolysissystemsindifferentmolecularsubtypesofbreastcancer
AT lnbondar proteasomalandcalpainproteolysissystemsindifferentmolecularsubtypesofbreastcancer
AT emslonimskaya proteasomalandcalpainproteolysissystemsindifferentmolecularsubtypesofbreastcancer
AT ivkondakova proteasomalandcalpainproteolysissystemsindifferentmolecularsubtypesofbreastcancer