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Ding L, Houben T, Oligschlaeger Y, Bitorina AV, Verwer BJ, Tushuizen ME, Shiri-Sverdlov R. Plasma Cathepsin D Activity Rather Than Levels Correlates With Metabolic Parameters of Type 2 Diabetes in Male Individuals. Front Endocrinol (Lausanne) 2020; 11:575070. [PMID: 33101209 PMCID: PMC7554511 DOI: 10.3389/fendo.2020.575070] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/11/2020] [Indexed: 02/01/2023] Open
Abstract
Objective Type 2 diabetes mellitus is a metabolic disorder characterized by insulin resistance. Previous studies in patients demonstrated that plasma levels of cathepsin D (CTSD), which is optimally active in the acidic environment of lysosomes, correlate with insulin resistance. As plasma pH is slightly reduced in type 2 diabetic patients and we have previously shown that plasma CTSD activity is causally linked to insulin levels in vivo, it is likely that the activity of CTSD in plasma will be increased in type 2 diabetes compared to healthy individuals. However, so far the interaction between CTSD activity and levels to postprandial metabolic derangements in type 2 diabetes is not known. Methods Eighteen type 2 diabetes and 16 age-matched healthy males were given 2 consecutive standardized mixed meals, after which blood samples were collected. Plasma metabolic parameters as well as CTSD levels and activity were measured, and changes in plasma pH was assessed. Results In line with the elevation of plasma free fatty acids (FFA) levels in male type 2 diabetics patients, plasma pH in type 2 diabetic individuals was decreased compared to male healthy individuals. While plasma CTSD levels were similar, plasma CTSD activity was increased in male type 2 diabetic compared to male healthy individuals. Besides, plasma CTSD activity rather than levels significantly correlated with indicators of type 2 diabetes (HbA1c, HOMA-IR and glucose). Furthermore, FFA was also independently associated with plasma CTSD activity (standardized β = 0.493, p = 0.007). Conclusions Despite similar plasma CTSD levels, type 2 diabetic male individuals showed increased plasma CTSD activity compared to healthy males, which was independently linked to plasma FFA levels. Our data therefore point toward plasma CTSD as a metabolic regulator in male type 2 diabetes.
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Affiliation(s)
- Lingling Ding
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
| | - Tom Houben
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
| | - Yvonne Oligschlaeger
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
| | - Albert V. Bitorina
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
| | - Bart J. Verwer
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, Netherlands
| | - Maarten E. Tushuizen
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, Netherlands
| | - Ronit Shiri-Sverdlov
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
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Ruibal A, Aguiar P, Del Camen Del Río M, Menéndez P, Arias JI, Herranz M. Clinicopathological characteristics of infiltrating lobular breast carcinoma in elderly women: Preliminary results. Mol Clin Oncol 2016; 3:1337-1340. [PMID: 26807244 DOI: 10.3892/mco.2015.625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Accepted: 09/04/2014] [Indexed: 11/05/2022] Open
Abstract
This study was conducted to investigate the clinicopathological parameters in elderly women (aged >70 years) with infiltrating lobular carcinoma (ILC) of the breast and compare the results with those obtained from younger patients (aged 55-70 years). The study sample included a total of 46 women with ILCs, 10 aged >70 and 36 aged 55-70 years. The parameters analysed were tumor size, histological grade (HG), axillary lymph node involvement, distant metastasis and immunohistochemical expression of estrogen, progesterone and androgen receptors, Ki67, p53 and B cell lymphoma 2. Compared to women aged 55-70 years, ILCs in women aged >70 years were commonly of larger size (P=0.068) and were more frequently HG3 (P=0.024). There were no statistically significant differences in the other parameters analysed. Furthermore, we were unable to determine differences in cancer recurrence and mortality in the two patient subgroups during our follow-up. In conclusion, our preliminary results, based on the limited number of cases included in this study, indicate that i) ILCs in women aged >70 years tended to be larger compared to those in women aged 55-70 years and were more frequently of grade 3; and ii) there were no significant differences in terms of recurrence and mortality between the two patient subgroups during our follow-up.
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Affiliation(s)
- Alvaro Ruibal
- Department of Radiology and Physical Medicine, Faculty of Medicine, University of Santiago de Compostela, Santiago de Compostela, Galicia 15706, Spain; Department of Nuclear Medicine, University Hospital of Santiago de Compostela, Santiago de Compostela, 15706 Galicia, Spain; Molecular Imaging Group, IDIS, Santiago de Compostela, 15706 Galicia, Spain; Tejerina Foundation, Madrid 28003 Galicia, Spain
| | - Pablo Aguiar
- Department of Radiology and Physical Medicine, Faculty of Medicine, University of Santiago de Compostela, Santiago de Compostela, Galicia 15706, Spain; Department of Nuclear Medicine, University Hospital of Santiago de Compostela, Santiago de Compostela, 15706 Galicia, Spain; Molecular Imaging Group, IDIS, Santiago de Compostela, 15706 Galicia, Spain
| | | | - Primitiva Menéndez
- Department of Pathology, Central University Hospital of Asturias, Oviedo, 33006 Asturias, Spain
| | - José Ignacio Arias
- Department of Surgery, Hospital Monte Naranco, Oviedo, 33012 Asturias, Spain
| | - Michel Herranz
- Department of Nuclear Medicine, University Hospital of Santiago de Compostela, Santiago de Compostela, 15706 Galicia, Spain; Molecular Imaging Group, IDIS, Santiago de Compostela, 15706 Galicia, Spain
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Pendharkar N, Gajbhiye A, Taunk K, RoyChoudhury S, Dhali S, Seal S, Mane A, Abhang S, Santra MK, Chaudhury K, Rapole S. Quantitative tissue proteomic investigation of invasive ductal carcinoma of breast with luminal B HER2 positive and HER2 enriched subtypes towards potential diagnostic and therapeutic biomarkers. J Proteomics 2015; 132:112-30. [PMID: 26642762 DOI: 10.1016/j.jprot.2015.11.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 10/16/2015] [Accepted: 11/26/2015] [Indexed: 02/09/2023]
Abstract
Worldwide, breast cancer is one of the frequently diagnosed cancers in women with high mortality if not diagnosed at early stage. Although biomarker discoveries through various proteomic approaches have been studied in breast cancer, a limited number of studies have explored the invasive ductal carcinoma with Luminal B HER2 positive (LB) and HER2 enriched (HE) subtypes. The present study employed the complementary quantitative proteomic approaches to find a panel of markers that could discriminate LB and HE subtypes as well as early (ES) and late stages (LS) of these subtypes. A total of 67 and 68 differentially expressed proteins were identified by DIGE for the subtype and stage wise categories, respectively. Multivariate statistical analysis was employed to identify the set of most significant proteins, which could discriminate between these two subtypes and also early and late stages under study. Immunoblotting and MRM based validation in a separate cohort of samples confirmed that panel of biosignatures for LB are APOA1, GELS, HS90B, EF1A1, NHRF1 and PRDX3 and for HE are PRDX1, CATD, CALR, ATPB and CH60. For the diagnosis of early and late stages the potential markers are TPM4, CATD, PRDX3, ANXA3, HSPB1 and CALR, TRFE, GELS, CH60, CAPG, NHRF1, 1433G, GRP78 respectively.
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Affiliation(s)
- Namita Pendharkar
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune 411007, MH, India; B. J. Medical College, Sassoon Hospital, Pune 411001, MH, India
| | - Akshada Gajbhiye
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune 411007, MH, India
| | - Khushman Taunk
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune 411007, MH, India
| | - Sourav RoyChoudhury
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Snigdha Dhali
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune 411007, MH, India
| | | | - Anupama Mane
- Grant Medical Foundation, Ruby Hall Clinic, Pune 411001, MH, India
| | | | - Manas K Santra
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune 411007, MH, India
| | - Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Srikanth Rapole
- Proteomics Lab, National Centre for Cell Science, Ganeshkhind, Pune 411007, MH, India.
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