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Kurozumi S, Kaira K, Matsumoto H, Kurosumi M, Yokobori T, Kanai Y, Sekine C, Honda C, Katayama A, Furuya M, Shiino S, Makiguchi T, Mongan NP, Rakha EA, Oyama T, Fujii T, Shirabe K, Horiguchi J. Association of L-type amino acid transporter 1 (LAT1) with the immune system and prognosis in invasive breast cancer. Sci Rep 2022; 12:2742. [PMID: 35177712 PMCID: PMC8854643 DOI: 10.1038/s41598-022-06615-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 02/02/2022] [Indexed: 01/04/2023] Open
Abstract
L-type amino acid transporter 1 (LAT1), also referred to as SLC7A5, is believed to regulate tumor metabolism and be associated with tumor proliferation. In invasive breast cancer, we clinicopathologically investigated the utility of LAT1 expression. LAT1 expression was evaluated via immunohistochemistry analyses in 250 breast cancer patients undergoing long-term follow-up. We assessed the relationships between LAT1 expression and patient outcomes and clinicopathological factors. Breast cancer-specific survival stratified by LAT1 expression was assessed. Human epidermal growth factor receptor 2 (HER2)-positive patients with metastasis received trastuzumab therapy. The density of tumor-infiltrating lymphocytes (TILs) was evaluated according to the International Working Group guidelines. In the current study, high LAT1 expression was significantly correlated with estrogen receptor (ER) negativity, progesterone receptor negativity, high histological grade, increased TILs, and programmed death ligand 1 positivity. Among the ER-positive and HER2-negative patients, high LAT1 was an independent indicator of poor outcomes (hazard ratio (HR) = 2.97; 95% confidence interval (CI), 1.16-7.62; p = 0.023). Moreover, high LAT1 expression was an independent poor prognostic factor in luminal B-like breast cancer with aggressive features (HR = 3.39; 95% CI 1.35-8.52; p = 0.0094). In conclusion, high LAT1 expression could be used to identify a subgroup of invasive breast cancer characterized by aggressive behavior and high tumor immunoreaction. Our findings suggest that LAT1 might be a candidate therapeutic target for breast cancer patients, particularly those with luminal B-like type breast cancer.
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Affiliation(s)
- Sasagu Kurozumi
- Department of Breast Surgery, International University of Health and Welfare, 852, Hatakeda, Narita, Chiba, 286-8520, Japan. .,Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan.
| | - Kyoichi Kaira
- Department of Respiratory Medicine, Comprehensive Cancer Center, International Medical Center, Saitama Medical University, Saitama, Japan
| | | | | | - Takehiko Yokobori
- Gunma University Initiative for Advanced Research (GIAR), Maebashi, Gunma, Japan
| | - Yoshikatsu Kanai
- Division of Bio-System Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Chikako Sekine
- Department of Breast Surgery, International University of Health and Welfare, 852, Hatakeda, Narita, Chiba, 286-8520, Japan
| | - Chikako Honda
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Ayaka Katayama
- Department of Diagnostic Pathology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Mio Furuya
- Department of Diagnostic Pathology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Sho Shiino
- Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
| | - Takaya Makiguchi
- Department of Oral and Maxillofacial Surgery and Plastic Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Nigel P Mongan
- Biodiscovery Institute, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Emad A Rakha
- Nottingham Breast Cancer Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
| | - Tetsunari Oyama
- Department of Diagnostic Pathology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Takaaki Fujii
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Ken Shirabe
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Jun Horiguchi
- Department of Breast Surgery, International University of Health and Welfare, 852, Hatakeda, Narita, Chiba, 286-8520, Japan
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2
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Kumar S, Basu M, Ghosh MK. Chaperone-assisted E3 ligase CHIP: A double agent in cancer. Genes Dis 2021; 9:1521-1555. [PMID: 36157498 PMCID: PMC9485218 DOI: 10.1016/j.gendis.2021.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/06/2021] [Indexed: 12/11/2022] Open
Abstract
The carboxy-terminus of Hsp70-interacting protein (CHIP) is a ubiquitin ligase and co-chaperone belonging to Ubox family that plays a crucial role in the maintenance of cellular homeostasis by switching the equilibrium of the folding-refolding mechanism towards the proteasomal or lysosomal degradation pathway. It links molecular chaperones viz. HSC70, HSP70 and HSP90 with ubiquitin proteasome system (UPS), acting as a quality control system. CHIP contains charged domain in between N-terminal tetratricopeptide repeat (TPR) and C-terminal Ubox domain. TPR domain interacts with the aberrant client proteins via chaperones while Ubox domain facilitates the ubiquitin transfer to the client proteins for ubiquitination. Thus, CHIP is a classic molecule that executes ubiquitination for degradation of client proteins. Further, CHIP has been found to be indulged in cellular differentiation, proliferation, metastasis and tumorigenesis. Additionally, CHIP can play its dual role as a tumor suppressor as well as an oncogene in numerous malignancies, thus acting as a double agent. Here, in this review, we have reported almost all substrates of CHIP established till date and classified them according to the hallmarks of cancer. In addition, we discussed about its architectural alignment, tissue specific expression, sub-cellular localization, folding-refolding mechanisms of client proteins, E4 ligase activity, normal physiological roles, as well as involvement in various diseases and tumor biology. Further, we aim to discuss its importance in HSP90 inhibitors mediated cancer therapy. Thus, this report concludes that CHIP may be a promising and worthy drug target towards pharmaceutical industry for drug development.
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Zhang Y, Zhu X, Qiao X, Sun L, Xia T, Liu C. Clinical Implications of HSC70 Expression in Clear Cell Renal Cell Carcinoma. Int J Med Sci 2021; 18:239-244. [PMID: 33390792 PMCID: PMC7738978 DOI: 10.7150/ijms.43100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 10/07/2020] [Indexed: 11/24/2022] Open
Abstract
Purpose: The role of heat shock protein 70 (HSC70) in the progression of clear cell renal cell carcinoma (ccRCC) is unclear. This study explored the effect of the HSC70 on the survival of ccRCC patients. Methods: Immunohistochemical analysis was performed to determine HSC70 expression in samples obtained from 121 ccRCC patients with at least 5 years of follow-up. We also analyzed the association between HSC70 expression and clinicopathological characteristics. Furthermore, the association of overall survival (OS) with HSC70 expression was analyzed using Kaplan-Meier curves. Finally, we used the Oncomine and CCLE databases to determine the effects of HSC70 mRNA expression on ccRCC. Results: HSC70 expression was associated with distant metastasis and death of ccRCC patients. HSC70 was expressed in the nucleus and/or cytoplasm of ccRCC cells. The incidence of distant organ metastasis and death was higher in patients with HSC70 expression than in those without it. Survival analysis revealed that patients with HSC70 expression had significantly shorter OS. Oncomine analyses also showed that the HSC70 mRNA was significantly upregulated in ccRCC tissues. Conclusions: HSC70 expression was related to adverse prognosis, and patients with HSC70 expression had a worse prognosis than those without HSC70 expression. HSC70 may thus serve as a potential therapeutic target for ccRCC.
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Affiliation(s)
- Yixiao Zhang
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, 110004, China
| | - Xudong Zhu
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, 110004, China
| | - Xinbo Qiao
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, 110004, China
| | - Lisha Sun
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, 110004, China
| | - Tianhui Xia
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, 110004, China
| | - Caigang Liu
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, 110004, China
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Júnior LA, Cucielo MS, Domeniconi RF, dos Santos LD, Silveira HS, da Silva Nunes I, Martinez M, Martinez FE, Fávaro WJ, Chuffa LGDA. P-MAPA and IL-12 Differentially Regulate Proteins Associated with Ovarian Cancer Progression: A Proteomic Study. ACS OMEGA 2019; 4:21761-21777. [PMID: 31891054 PMCID: PMC6933580 DOI: 10.1021/acsomega.9b02512] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 11/27/2019] [Indexed: 05/04/2023]
Abstract
To investigate the potential role of immunotherapies in the cellular and molecular mechanisms associated with ovarian cancer (OC), we applied a comparative proteomic toll using protein identification combined with mass spectrometry. Herein, the effects of the protein aggregate magnesium-ammonium phospholinoleate-palmitoleate anhydride, known as P-MAPA, and the human recombinant interleukin-12 (hrIL-12) were tested alone or in combination in human SKOV-3 cells. The doses and period were defined based on a previous study, which showed that 25 μg/mL P-MAPA and 1 ng/mL IL-12 are sufficient to reduce cell metabolism after 48 h. Indeed, among 2,881 proteins modulated by the treatments, 532 of them were strictly concordant and common. P-MAPA therapy upregulated proteins involved in tight junction, focal adhesion, ribosome constitution, GTP hydrolysis, semaphorin interactions, and expression of SLIT and ROBO, whereas it downregulated ERBB4 signaling, toll-like receptor signaling, regulation of NOTCH 4, and the ubiquitin proteasome pathway. In addition, IL-12 therapy led to upregulation of leukocyte migration, tight junction, and cell signaling, while cell communication, cell metabolism, and Wnt signaling were significantly downregulated in OC cells. A clear majority of proteins that were overexpressed by the combination of P-MAPA with IL-12 are involved in tight junction, focal adhesion, DNA methylation, metabolism of RNA, and ribosomal function; only a small number of downregulated proteins were involved in cell signaling, energy and mitochondrial processes, cell oxidation and senescence, and Wnt signaling. These findings suggest that P-MAPA and IL-12 efficiently regulated important proteins associated with OC progression; these altered proteins may represent potential targets for OC treatment in addition to its immunoadjuvant effects.
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Affiliation(s)
- Luiz Antonio
Lupi Júnior
- Department
of Anatomy, Institute of Biosciences and Center for the Study of Venoms
and Venomous Animals (CEVAP), UNESP—Universidade
Estadual Paulista, Botucatu, São Paulo 18618-689, Brazil
| | - Maira Smaniotto Cucielo
- Department
of Anatomy, Institute of Biosciences and Center for the Study of Venoms
and Venomous Animals (CEVAP), UNESP—Universidade
Estadual Paulista, Botucatu, São Paulo 18618-689, Brazil
| | - Raquel Fantin Domeniconi
- Department
of Anatomy, Institute of Biosciences and Center for the Study of Venoms
and Venomous Animals (CEVAP), UNESP—Universidade
Estadual Paulista, Botucatu, São Paulo 18618-689, Brazil
| | - Lucilene Delazari dos Santos
- Department
of Anatomy, Institute of Biosciences and Center for the Study of Venoms
and Venomous Animals (CEVAP), UNESP—Universidade
Estadual Paulista, Botucatu, São Paulo 18618-689, Brazil
| | - Henrique Spaulonci Silveira
- Department
of Anatomy, Institute of Biosciences and Center for the Study of Venoms
and Venomous Animals (CEVAP), UNESP—Universidade
Estadual Paulista, Botucatu, São Paulo 18618-689, Brazil
| | | | - Marcelo Martinez
- Department
of Morphology and Pathology, Federal University
of São Carlos, São
Carlos, São Paulo 13565-905, Brazil
| | - Francisco Eduardo Martinez
- Department
of Anatomy, Institute of Biosciences and Center for the Study of Venoms
and Venomous Animals (CEVAP), UNESP—Universidade
Estadual Paulista, Botucatu, São Paulo 18618-689, Brazil
| | - Wagner José Fávaro
- Department
of Structural and Functional Biology, UNICAMP—University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Luiz Gustavo de Almeida Chuffa
- Department
of Anatomy, Institute of Biosciences and Center for the Study of Venoms
and Venomous Animals (CEVAP), UNESP—Universidade
Estadual Paulista, Botucatu, São Paulo 18618-689, Brazil
- E-mail: . Phone: +55 (14) 3880-0027
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5
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Negative regulators of cell death pathways in cancer: perspective on biomarkers and targeted therapies. Apoptosis 2019; 23:93-112. [PMID: 29322476 DOI: 10.1007/s10495-018-1440-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Cancer is a primary cause of human fatality and conventional cancer therapies, e.g., chemotherapy, are often associated with adverse side-effects, tumor drug-resistance, and recurrence. Molecularly targeted therapy, composed of small-molecule inhibitors and immunotherapy (e.g., monoclonal antibody and cancer vaccines), is a less harmful alternative being more effective against cancer cells whilst preserving healthy tissues. Drug-resistance, however, caused by negative regulation of cell death signaling pathways, is still a challenge. Circumvention of negative regulators of cell death pathways or development of predictive and response biomarkers is, therefore, quintessential. This review critically discusses the current state of knowledge on targeting negative regulators of cell death signaling pathways including apoptosis, ferroptosis, necroptosis, autophagy, and anoikis and evaluates the recent advances in clinical and preclinical research on biomarkers of negative regulators. It aims to provide a comprehensive platform for designing efficacious polytherapies including novel agents for restoring cell death signaling pathways or targeting alternative resistance pathways to improve the chances for antitumor responses. Overall, it is concluded that nonapoptotic cell death pathways are a potential research arena for drug discovery, development of novel biomarkers and targeted therapies.
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6
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Kurozumi S, Kaira K, Matsumoto H, Hirakata T, Yokobori T, Inoue K, Horiguchi J, Katayama A, Koshi H, Shimizu A, Oyama T, Sloan EK, Kurosumi M, Fujii T, Shirabe K. β 2-Adrenergic receptor expression is associated with biomarkers of tumor immunity and predicts poor prognosis in estrogen receptor-negative breast cancer. Breast Cancer Res Treat 2019; 177:603-610. [PMID: 31290053 DOI: 10.1007/s10549-019-05341-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 06/29/2019] [Indexed: 12/19/2022]
Abstract
PURPOSE Antitumor immunity plays an important role in the progression of breast cancer. β2-adrenergic receptor (β2AR) was found to regulate the antitumor immune response and breast cancer progression in preclinical studies. To understand the clinical role of β2AR in cancer progression, we investigated the clinicopathological and prognostic significance of β2AR expression in invasive breast cancer. METHODS β2AR levels in breast tumors were evaluated by immunohistochemistry in a well-characterized patient cohort with long-term follow-up (n = 278). We evaluated the relationship of β2AR expression to patient survival and clinicopathological factors, including immune biomarkers such as tumor-infiltrating lymphocytes (TILs) and programmed death ligand 1 (PD-L1) expression. Breast cancer-specific survival was compared between high- and low-β2AR expression groups. RESULTS Although β2AR was not related to clinicopathological factors across the whole cohort, high β2AR was significantly related to PD-L1 negativity in estrogen receptor (ER)-negative patients. Tumors with high β2AR tended to have low TIL grade, and high β2AR was an independent prognostic factor for reduced survival in ER-negative patients. CONCLUSIONS β2AR is an independent poor prognostic factor in ER-negative breast cancer. The findings suggest that tumor β2AR regulates immune checkpoint activity, which may have therapeutic implications for patients with ER-negative breast cancer.
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Affiliation(s)
- Sasagu Kurozumi
- Department of General Surgical Science, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan. .,Division of Breast Surgery, Saitama Cancer Center, Saitama, Japan.
| | - Kyoichi Kaira
- Department of Respiratory Medicine, Comprehensive Cancer Center, International Medical Center, Saitama Medical University, Saitama, Japan
| | | | - Tomoko Hirakata
- Department of General Surgical Science, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Takehiko Yokobori
- Department of Innovative Cancer Immunotherapy, Gunma University, Maebashi, Gunma, Japan
| | - Kenichi Inoue
- Division of Breast Oncology, Saitama Cancer Center, Saitama, Japan
| | - Jun Horiguchi
- Department of Breast Surgery, International University of Health and Welfare, Chiba, Japan
| | - Ayaka Katayama
- Department of Diagnostic Pathology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Hiromi Koshi
- Department of Diagnostic Pathology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Akira Shimizu
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Tetsunari Oyama
- Department of Diagnostic Pathology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Erica K Sloan
- Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | | | - Takaaki Fujii
- Department of General Surgical Science, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Ken Shirabe
- Department of General Surgical Science, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
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7
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Kurozumi S, Yamaguchi Y, Matsumoto H, Kurosumi M, Hayashi SI, Fujii T, Horiguchi J, Shirabe K, Inoue K. Utility of Ki67 labeling index, cyclin D1 expression, and ER-activity level in postmenopausal ER-positive and HER2-negative breast cancer with neoadjuvant chemo-endocrine therapy. PLoS One 2019; 14:e0217279. [PMID: 31112577 PMCID: PMC6528995 DOI: 10.1371/journal.pone.0217279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 05/08/2019] [Indexed: 12/19/2022] Open
Abstract
In this study, we investigated the relationships of pathological response after neoadjuvant chemo-endocrine therapy with alterations in the Ki67 labeling index (LI), expression of cyclin D1 (CCND1) and progesterone receptor (PgR), and estrogen receptor (ER) activity in breast cancer. A total of 43 Japanese post-menopausal ER-positive and human epidermal growth factor receptor 2-negative invasive breast cancer patients with tumors >2 cm or positive lymph nodes were enrolled. Exemestane alone was administered for 2 months. Neoadjuvant chemo-endocrine therapy included four cycles of doxorubicin plus paclitaxel followed by weekly paclitaxel. The immunohistochemical expression of Ki67 LI, CCND1, and PgR, and ER activity were evaluated using core needle biopsy samples at the pretreatment and post-exemestane alone stages. ER activity was evaluated through transfection of an adenovirus vector carrying an estrogen-response element-green fluorescent protein gene. In current study, marked pathological responses (including 4.7% with pathological complete response) were obtained in 34.9% of patients. Ki67 LI and PgR expression were significantly decreased after treatment. High Ki67 LI at pretreatment was a significant predictive factor of marked pathological response. At the stage of post-exemestane alone, Ki67 LI was not significantly associated with pathological response; however, high CCND1 expression was significantly correlated with high Ki67 LI. Moreover, low-level ER activity at the post-exemestane alone stage was significantly associated with marked pathological response. In conclusions, pretreatment Ki67 LI was a predictor of response to neoadjuvant chemo-endocrine therapy. CCND1 expression and ER activity at the post-endocrine therapy alone stage may be useful in determining further treatments.
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Affiliation(s)
- Sasagu Kurozumi
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan
- Division of Breast Surgery, Saitama Cancer Center, Saitama, Japan
- * E-mail:
| | - Yuri Yamaguchi
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | | | | | - Shin-ichi Hayashi
- Department of Molecular and Functional Dynamics, Tohoku University, Miyagi, Japan
| | - Takaaki Fujii
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Jun Horiguchi
- Department of Breast Surgery, International University of Health and Welfare, Chiba, Japan
| | - Ken Shirabe
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Kenichi Inoue
- Division of Breast Oncology, Saitama Cancer Center, Saitama, Japan
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8
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Sun S, Wu Q, Song J, Sun S. Protein kinase C δ-dependent regulation of Ubiquitin-proteasome system function in breast cancer. Cancer Biomark 2018; 21:1-9. [PMID: 29036789 DOI: 10.3233/cbm-170451] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Besides the crucial role of hyperinsulinemia in the development of breast cancer with Type 2 diabetes mellitus (T2DM), it has been shown that hyperglycemia could contribute to promote cancer progression. A remarkable association within hyperglycemia, PKCδ and Ubiquitin-proteasome system (UPS) has been reported, suggesting that PKCδ may mediate high glucose-induced UPS activation in breast cancer cells. Although the independent effects of PKCδ or UPS on breast cancer and T2DM are increasingly supported by experimental evidence, the complex interactional link between PKCδ and UPS is still unclear. Hence, we focus on the relationship between PKCδ and UPS in breast cancer with T2DM. We hypothesize that PKCδ may have the function to regulate the activity of UPS. Further, we speculate that PKCδ combine with proteasome α2 promoter, that indicate PKCδ regulate the function of UPS by change the composition of proteasome. Therefore, we surmise that PKCδ mediated high glucose-induced UPS activation in breast cancer cells, and specific PKCδ inhibitor rottlerin significantly suppressed elevated glucose induced the activity of UPS. We hope that our paper will stimulate further studies the relationship between PKCδ and UPS, and a new targeted therapy and early medical intervention for PKCδ could be a useful option for breast cancer cases complicated with T2DM or hyperglycemia.
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Affiliation(s)
- Si Sun
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Qi Wu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Junlong Song
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Shengrong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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9
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Kurozumi S, Joseph C, Sonbul S, Gorringe KL, Pigera M, Aleskandarany MA, Diez-Rodriguez M, Nolan CC, Fujii T, Shirabe K, Kuwano H, Storr S, Martin SG, Ellis IO, Green AR, Rakha EA. Clinical and biological roles of Kelch-like family member 7 in breast cancer: a marker of poor prognosis. Breast Cancer Res Treat 2018; 170:525-533. [DOI: 10.1007/s10549-018-4777-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 03/30/2018] [Indexed: 02/07/2023]
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10
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Recent trends in microRNA research into breast cancer with particular focus on the associations between microRNAs and intrinsic subtypes. J Hum Genet 2016; 62:15-24. [PMID: 27439682 DOI: 10.1038/jhg.2016.89] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/11/2016] [Accepted: 06/13/2016] [Indexed: 12/17/2022]
Abstract
MicroRNAs (miRNAs) are short non-coding RNAs that regulate the function of target genes at the post-transcriptional phase. miRNAs are considered to have roles in the development, progression and metastasis of cancer. Recent studies have indicated that particular miRNA signatures are correlated with tumor aggressiveness, response to drug therapy and patient outcome in breast cancer. On the other hand, in routine clinical practice, the treatment regimens for breast cancer are determined based on the intrinsic subtype of the primary tumor. Previous studies have shown that miRNA expression profiles of each intrinsic subtypes of breast cancer differ. In hormone receptor-positive/human epidermal growth factor receptor 2 (HER2)-negative breast cancer, miRNA expressions are found to be correlated with endocrine therapy resistance, progesterone receptor expression and heat shock protein activity. Some miRNAs are associated with resistance to HER2-targeted therapy and HER3 expression in HER2-positive breast cancer. In triple-negative breast cancer, miRNA expressions are found to be associated with BRCA mutations, immune system, epithelial-mesenchymal transition, cancer stem cell properties and androgen receptor expression. As it has been clarified that the expression levels and functions of miRNA differ among the various subtypes of breast cancer, and it is necessary to take account of the characteristics of each breast cancer subtype during research into the roles of miRNA in breast cancer. In addition, the discovery of the roles played by miRNAs in breast cancer might provide new opportunities for the development of novel strategies for diagnosing and treating breast cancer.
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11
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Kurozumi S, Yamaguchi Y, Hayashi SI, Hiyoshi H, Suda T, Gohno T, Matsumoto H, Takei H, Horiguchi J, Takeyoshi I, Oyama T, Kurosumi M. Prognostic value of the ubiquitin ligase carboxyl terminus of the Hsc70-interacting protein in postmenopausal breast cancer. Cancer Med 2016; 5:1873-82. [PMID: 27334118 PMCID: PMC4971916 DOI: 10.1002/cam4.780] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 04/24/2016] [Accepted: 04/25/2016] [Indexed: 12/26/2022] Open
Abstract
The carboxyl terminus of the Hsc70‐interacting protein (CHIP) is considered to induce the ubiquitination and degradation of several oncogenic proteins, and play a role in the inhibition of tumor progression and invasion under experimental conditions. However, the impact of CHIP expression on the prognosis of breast cancer patients has not yet been established. In this study, using an immunohistochemical method, 272 patients with invasive breast cancer were assessed for the expression of CHIP (graded scores 0‐3) and the statuses of biomarkers, such as estrogen receptor (ER), progesterone receptor (PgR), and HER2. The relationships between the statuses of CHIP and biomarkers as well as clinical features were also evaluated, and that between the expression of CHIP and patient prognosis was analyzed. We revealed that the strong expression of CHIP correlated with positive ER (P < 0.001), positive PgR (P < 0.001), and negative HER2 (P = 0.02). In postmenopausal patients, relapse‐free survival (RFS) was significantly better in the high CHIP group than in the low CHIP group (P = 0.042). In addition, RFS and cancer‐specific survival (CSS) were significantly better in patients with ER‐positive/CHIP score 3 tumors than in those with ER‐negative/CHIP score 0 tumors (RFS: P = 0.038, CSS: P = 0.0098). The methylation status of CHIP gene promoter did not always account for the down‐regulation of its expression. In conclusion, the overexpression of CHIP is a potent prognostic factor of a good prognosis in ER‐positive breast cancer patients in the postmenopausal phase.
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Affiliation(s)
- Sasagu Kurozumi
- Division of Breast Surgery, Saitama Cancer Center, 780 Komuro, Ina-machi, Kitaadachi-gun, Saitama, 362-0806, Japan.,Department of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan
| | - Yuri Yamaguchi
- Research Institute for Clinical Oncology, Saitama Cancer Center, 780 Komuro, Ina-machi, Kitaadachi-gun, Saitama, 362-0806, Japan
| | - Shin-Ichi Hayashi
- Department of Molecular and Functional Dynamics, Tohoku University, 2-1 Seiryo-chou, Aoba-ku, Sendai, 980-8575, Miyagi, Japan
| | - Hiromi Hiyoshi
- Center for Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Ibaraki, Japan
| | - Tetsuji Suda
- Research Institute for Clinical Oncology, Saitama Cancer Center, 780 Komuro, Ina-machi, Kitaadachi-gun, Saitama, 362-0806, Japan
| | - Tatsuyuki Gohno
- Department of Molecular and Functional Dynamics, Tohoku University, 2-1 Seiryo-chou, Aoba-ku, Sendai, 980-8575, Miyagi, Japan
| | - Hiroshi Matsumoto
- Division of Breast Surgery, Saitama Cancer Center, 780 Komuro, Ina-machi, Kitaadachi-gun, Saitama, 362-0806, Japan
| | - Hiroyuki Takei
- Division of Breast Surgery, Saitama Cancer Center, 780 Komuro, Ina-machi, Kitaadachi-gun, Saitama, 362-0806, Japan
| | - Jun Horiguchi
- Department of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan
| | - Izumi Takeyoshi
- Department of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan
| | - Tetsunari Oyama
- Department of Diagnostic Pathology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, 371-8511, Gunma, Japan
| | - Masafumi Kurosumi
- Department of Pathology, Saitama Cancer Center, 780 Komuro, Ina-machi, Kitaadachi-gun, Saitama, 362-0806, Japan
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