1
|
Bravo-Olín J, Martínez-Carreón SA, Francisco-Solano E, Lara AR, Beltran-Vargas NE. Analysis of the role of perfusion, mechanical, and electrical stimulation in bioreactors for cardiac tissue engineering. Bioprocess Biosyst Eng 2024; 47:767-839. [PMID: 38643271 DOI: 10.1007/s00449-024-03004-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 03/13/2024] [Indexed: 04/22/2024]
Abstract
Since cardiovascular diseases (CVDs) are globally one of the leading causes of death, of which myocardial infarction (MI) can cause irreversible damage and decrease survivors' quality of life, novel therapeutics are needed. Current approaches such as organ transplantation do not fully restore cardiac function or are limited. As a valuable strategy, tissue engineering seeks to obtain constructs that resemble myocardial tissue, vessels, and heart valves using cells, biomaterials as scaffolds, biochemical and physical stimuli. The latter can be induced using a bioreactor mimicking the heart's physiological environment. An extensive review of bioreactors providing perfusion, mechanical and electrical stimulation, as well as the combination of them is provided. An analysis of the stimulations' mechanisms and modes that best suit cardiac construct culture is developed. Finally, we provide insights into bioreactor configuration and culture assessment properties that need to be elucidated for its clinical translation.
Collapse
Affiliation(s)
- Jorge Bravo-Olín
- Biological Engineering Undergraduate Program, Division of Natural Science and Engineering, Universidad Autonoma Metropolitana-Cuajimalpa, Ciudad de Mexico C.P. 05348, México
| | - Sabina A Martínez-Carreón
- Biological Engineering Undergraduate Program, Division of Natural Science and Engineering, Universidad Autonoma Metropolitana-Cuajimalpa, Ciudad de Mexico C.P. 05348, México
| | - Emmanuel Francisco-Solano
- Natural Science and Engineering Graduate Program, Universidad Autonoma Metropolitana-Cuajimalpa, Ciudad de Mexico C.P. 05348, México
| | - Alvaro R Lara
- Department of Biological and Chemical Engineering, Aarhus University, Gustav Wieds Vej 10, 8000, Aarhus, Denmark
| | - Nohra E Beltran-Vargas
- Process and Technology Department, Division of Natural Science and Engineering, Universidad Autonoma Metropolitana-Cuajimalpa, Ciudad de Mexico C.P. 05348, México.
| |
Collapse
|
2
|
Santos NJ, Barquilha CN, Barbosa IC, Macedo RT, Lima FO, Justulin LA, Barbosa GO, Carvalho HF, Felisbino SL. Syndecan Family Gene and Protein Expression and Their Prognostic Values for Prostate Cancer. Int J Mol Sci 2021; 22:ijms22168669. [PMID: 34445387 PMCID: PMC8395474 DOI: 10.3390/ijms22168669] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 12/24/2022] Open
Abstract
Prostate cancer (PCa) is the leading cause of cancer-associated mortality in men, and new biomarkers are still needed. The expression pattern and protein tissue localization of proteoglycans of the syndecan family (SDC 1-4) and syntenin-1 (SDCBP) were determined in normal and prostatic tumor tissue from two genetically engineered mouse models and human prostate tumors. Studies were validated using SDC 1-4 and SDCBP mRNA levels and patient survival data from The Cancer Genome Atlas and CamCAP databases. RNAseq showed increased expression of Sdc1 in Pb-Cre4/Ptenf/f mouse Pca and upregulation of Sdc3 expression and downregulation of Sdc2 and Sdc4 when compared to the normal prostatic tissue in Pb-Cre4/Trp53f/f-;Rb1f/f mouse tumors. These changes were confirmed by immunohistochemistry. In human PCa, SDC 1-4 and SDCBP immunostaining showed variable localization. Furthermore, Kaplan-Meier analysis showed that patients expressing SDC3 had shorter prostate-specific survival than those without SDC3 expression (log-rank test, p = 0.0047). Analysis of the MSKCC-derived expression showed that SDC1 and SDC3 overexpression is predictive of decreased biochemical recurrence-free survival (p = 0.0099 and p = 0.045, respectively), and SDC4 overexpression is predictive of increased biochemical recurrence-free survival (p = 0.035). SDC4 overexpression was associated with a better prognosis, while SDC1 and SDC3 were associated with more aggressive tumors and a worse prognosis.
Collapse
Affiliation(s)
- Nilton José Santos
- Department of Structural and Functional BIology, Institute of Bioscience of Botucatu (IBB), São Paulo State University, Botucatu 18618-689, SP, Brazil; (N.J.S.); (C.N.B.); (I.C.B.); (L.A.J.)
- Department of Structural and Functional Biology, Institute of Biology (IB), UNICAMP—State University of Campinas, Campinas 13083-970, SP, Brazil; (G.O.B.); (H.F.C.)
| | - Caroline Nascimento Barquilha
- Department of Structural and Functional BIology, Institute of Bioscience of Botucatu (IBB), São Paulo State University, Botucatu 18618-689, SP, Brazil; (N.J.S.); (C.N.B.); (I.C.B.); (L.A.J.)
- Department of Structural and Functional Biology, Institute of Biology (IB), UNICAMP—State University of Campinas, Campinas 13083-970, SP, Brazil; (G.O.B.); (H.F.C.)
| | - Isabela Correa Barbosa
- Department of Structural and Functional BIology, Institute of Bioscience of Botucatu (IBB), São Paulo State University, Botucatu 18618-689, SP, Brazil; (N.J.S.); (C.N.B.); (I.C.B.); (L.A.J.)
- Department of Structural and Functional Biology, Institute of Biology (IB), UNICAMP—State University of Campinas, Campinas 13083-970, SP, Brazil; (G.O.B.); (H.F.C.)
| | - Rodrigo Tavares Macedo
- Botucatu School of Medicine (FMB), São Paulo State University, Botucatu 01049-010, SP, Brazil; (R.T.M.); (F.O.L.)
| | - Flávio Oliveira Lima
- Botucatu School of Medicine (FMB), São Paulo State University, Botucatu 01049-010, SP, Brazil; (R.T.M.); (F.O.L.)
| | - Luis Antônio Justulin
- Department of Structural and Functional BIology, Institute of Bioscience of Botucatu (IBB), São Paulo State University, Botucatu 18618-689, SP, Brazil; (N.J.S.); (C.N.B.); (I.C.B.); (L.A.J.)
| | - Guilherme Oliveira Barbosa
- Department of Structural and Functional Biology, Institute of Biology (IB), UNICAMP—State University of Campinas, Campinas 13083-970, SP, Brazil; (G.O.B.); (H.F.C.)
| | - Hernandes F. Carvalho
- Department of Structural and Functional Biology, Institute of Biology (IB), UNICAMP—State University of Campinas, Campinas 13083-970, SP, Brazil; (G.O.B.); (H.F.C.)
| | - Sérgio Luis Felisbino
- Department of Structural and Functional BIology, Institute of Bioscience of Botucatu (IBB), São Paulo State University, Botucatu 18618-689, SP, Brazil; (N.J.S.); (C.N.B.); (I.C.B.); (L.A.J.)
- Correspondence:
| |
Collapse
|
3
|
Carrara GFA, Evangelista AF, Scapulatempo-Neto C, Abrahão-Machado LF, Morini MA, Kerr LM, Folgueira MAAK, da Costa Vieira RA. Analysis of RPL37A, MTSS1, and HTRA1 expression as potential markers for pathologic complete response and survival. Breast Cancer 2021; 28:307-320. [PMID: 32951185 DOI: 10.1007/s12282-020-01159-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 09/11/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Non-metastatic locally advanced breast carcinoma (LABC) treatment involves neoadjuvant chemotherapy (NCT). We evaluated the association of clinical-pathological data and immunoexpression of hormone receptors, HER2 and Ki67, and new biomarkers, RPL37A, MTSS1 and HTRA1, with pathological complete response (PCR) or tumour resistance (stable disease or disease progression), disease-free survival (DFS) and cancer-specific survival (CSS). METHODS This is a retrospective study of 333 patients with LABC who underwent NCT. Expression of MTSS1, RPL37A and HTRA1/PRSS11 was evaluated by immunohistochemistry in TMA slides. Cutoff values were established for low and high tumour expression. ROC plotter evaluated response to NCT. Chi-square test for factors related to PCR, and Kaplan-Meier test and Cox model for factors related to DFS and CSS were prformed. RESULTS The mean follow-up was 70.0 months and PCR rate was 15.6%. At 120 months, DFS rate was 32.5% and CSS rate was 67.1%. In multivariate analysis, there was an association between: (1) necrosis presence, intense inflammatory infiltrate, ER absence, HER2 molecular subtype and high RPL3A expression with increased odds of PCR; (2) lymph node involvement (LNI), high Ki67, low RPL37A and high HTRA1 expression with increased risk for NCT non-response; (3) LNI, high proliferation, necrosis absence, low RPL37A and high HTRA1 expression with increased recurrence risk; (4) advanced LNI, ER negative tumours, high HTRA1, low RPL37A expression and desmoplasia presence with higher risk of cancer death. CONCLUSION RPL37A is a potential biomarker for response to NCT and for prognosis. Additional studies evaluating HTRA1 and MTSS1 prognostic value are needed.
Collapse
Affiliation(s)
- Guilherme Freire Angotti Carrara
- Programa de Pós-Graduação em Oncologia, Hospital de Câncer de Barretos, Rua Antenor Duarte Villela, 1331, Bairro Dr Paulo Prata, Barretos, São Paulo, 14.784-400, Brasil
| | - Adriane Feijo Evangelista
- Programa de Pós-Graduação em Oncologia, Hospital de Câncer de Barretos, Rua Antenor Duarte Villela, 1331, Bairro Dr Paulo Prata, Barretos, São Paulo, 14.784-400, Brasil
- Centro de Pesquisa Molecular em Oncologia, Hospital de Câncer de Barretos, Barretos, Brasil
| | - Cristovam Scapulatempo-Neto
- Programa de Pós-Graduação em Oncologia, Hospital de Câncer de Barretos, Rua Antenor Duarte Villela, 1331, Bairro Dr Paulo Prata, Barretos, São Paulo, 14.784-400, Brasil
- Departamento de Patologia, Hospital de Câncer de Barretos, Barretos, Brasil
| | | | | | - Ligia Maria Kerr
- Departamento de Patologia, Hospital de Câncer de Barretos, Barretos, Brasil
| | - Maria Aparecida Azevedo Koike Folgueira
- Programa de Pós-Graduação em Oncologia, Departamento de Radiologia e Oncologia, Faculdade de Medicina, FMUSP Universidade de São Paulo, FMUSP, São Paulo, Brasil
| | - René Aloisio da Costa Vieira
- Programa de Pós-Graduação em Oncologia, Hospital de Câncer de Barretos, Rua Antenor Duarte Villela, 1331, Bairro Dr Paulo Prata, Barretos, São Paulo, 14.784-400, Brasil.
- Programa de Pós-Graduação em Ginecologia, Obstetricia e Mastologia, Faculdade de Medicina de Botucatu/UNESP, Botucatu, São Paulo, Brasil.
| |
Collapse
|
4
|
Tissue microarray (TMA) use in post mortem neuropathology. J Neurosci Methods 2020; 347:108963. [PMID: 33007345 DOI: 10.1016/j.jneumeth.2020.108963] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/16/2020] [Accepted: 09/26/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Tissue microarrays (TMAs), where each block (and thus section) contains multiple tissue cores from multiple blocks potentially allow more efficient use of tissue, reagents and time in neuropathology. NEW METHOD The relationship between data from TMA cores and whole sections was investigated using 'virtual' TMA cores. This involved quantitative assessments of microglial pathology in white matter lesions and motor neuron disease, alongside qualitative TDP-43 inclusion status in motor neuron disease cases. Following this, a protocol was developed for TMA construction. RESULTS For microglial pathology we found good concordance between virtual cores and whole sections for volume density using one 1.75 mm core (equivalent to a 2 mm core after accounting for peripheral tissue loss). More sophisticated microglial cell size and measures required two cores. Qualitative results of pTDP-43 pathology showed use of one 1.75 mm core gave a 100 % sensitivity and specificity within grey matter, and 88.3 % sensitivity and 100 % specificity within white matter. A method of producing the TMAs was suitable for immunohistochemistry both manually and by autostainer, with the minimal core loss from the microscope slide. COMPARISON WITH EXISTING METHODS TMAs have been used infrequently in post mortem neuropathology research. However, we believe TMAs give comparable tissue assessment results and can be constructed, sectioned and stained with relative ease. CONCLUSIONS We found TMAs could be used to assess both quantitative (microglial pathology) and qualitative pathology (TDP-43 proteinopathy) with greatly reduced quantities of tissue, time and reagents. These could be used for further work to improve data acquisition efficiency.
Collapse
|
5
|
Miranda-Azpiazu P, Svedberg M, Higuchi M, Ono M, Jia Z, Sunnemark D, Elmore CS, Schou M, Varrone A. Identification and in vitro characterization of C05-01, a PBB3 derivative with improved affinity for alpha-synuclein. Brain Res 2020; 1749:147131. [PMID: 32956648 DOI: 10.1016/j.brainres.2020.147131] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/24/2020] [Accepted: 09/14/2020] [Indexed: 11/25/2022]
Abstract
The neuropathological hallmark of Parkinsońs disease, multiple system atrophy and dementia with Lewy bodies is the accumulation of α-synuclein. The development of an imaging biomarker for α-synuclein is an unmet need. To date, no selective α-synuclein imaging agent has been identified, though initial studies suggest that the tau tracer [11C]PBB3 displays some degree of binding to α-synuclein. In this study, a series of compounds derived from the PBB3 scaffold were examined using fluorescence imaging and tissue microarrays (TMAs) derived from brain samples with different proteinopathies. One compound, C05-01, was selected based on its higher fluorescence signal associated with Lewy body aggregates compared with other PBB3 analogues. In vitro binding assays using human brain homogenates and recombinant fibrils indicated that C05-01 had higher affinity for α-synuclein (KD/Ki 25 nM for fibrils, Ki 3.5 nM for brain homogenates) as compared with PBB3 (KD 58 nM). In autoradiography (ARG) studies using fresh frozen human tissue and TMAs, [3H]C05-01 displayed specific binding in cases with α-synuclein pathology. C05-01 is the first PBB3 analogue developed as a potential compound targeting α-synuclein. Despite improved affinity for α-synuclein, C05-01 showed specific binding in AD tissue with Amyloid β and tau pathology, as well as relatively high non-specific and off-target binding. Additional efforts are needed to optimize the pharmacological and physicochemical properties of this series of compounds as ligands for α-synuclein. This study also showed that the construction of TMAs from different proteinopathies provides a tool for evaluation of fluorescent or radiolabelled compounds binding to misfolded proteins.
Collapse
Affiliation(s)
- Patricia Miranda-Azpiazu
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden.
| | - Marie Svedberg
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
| | - Makoto Higuchi
- Department of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Maiko Ono
- Department of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Zhisheng Jia
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
| | - Dan Sunnemark
- Offspring Biosciences, Sweden AB, Södertälje, Sweden; Applied Immunology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Charles S Elmore
- Early Chemical Development, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Magnus Schou
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden; PET Science Centre, Precision Medicine, Oncology R&D, AstraZeneca, Stockholm 17176, Sweden
| | - Andrea Varrone
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
| |
Collapse
|
6
|
Zhang ZZ, Yu WX, Zheng M, Liao XH, Wang JC, Yang DY, Lu WX, Wang L, Zhang S, Liu HK, Zhou XZ, Lu KP. PIN1 Inhibition Sensitizes Chemotherapy in Gastric Cancer Cells by Targeting Stem Cell-like Traits and Multiple Biomarkers. Mol Cancer Ther 2020; 19:906-919. [PMID: 31879364 DOI: 10.1158/1535-7163.mct-19-0656] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/25/2019] [Accepted: 12/19/2019] [Indexed: 11/16/2022]
Abstract
Gastric cancer is the third leading cause of cancer-related death worldwide. Diffuse type gastric cancer has the worst prognosis due to notorious resistance to chemotherapy and enrichment of cancer stem-like cells (CSC) associated with the epithelial-to-mesenchymal transition (EMT). The unique proline isomerase PIN1 is a common regulator of oncogenic signaling networks and is important for gastric cancer development. However, little is known about its roles in CSCs and drug resistance in gastric cancer. In this article, we demonstrate that PIN1 overexpression is closely correlated with advanced tumor stages, poor chemo-response and shorter recurrence-free survival in diffuse type gastric cancer in human patients. Furthermore, shRNA-mediated genetic or all-trans retinoic acid-mediated pharmaceutical inhibition of PIN1 in multiple human gastric cancer cells potently suppresses the EMT, cell migration and invasion, and lung metastasis. Moreover, PIN1 genetic or pharmaceutical inhibition potently eliminates gastric CSCs and suppresses their self-renewal and tumorigenicity in vitro and in vivo Consistent with these phenotypes, are that PIN1 biochemically targets multiple signaling molecules and biomarkers in EMT and CSCs and that genetic and pharmaceutical PIN1 inhibition functionally and drastically enhances the sensitivity of gastric cancer to multiple chemotherapy drugs in vitro and in vivo These results demonstrate that PIN1 inhibition sensitizes chemotherapy in gastric cancer cells by targeting CSCs, and suggest that PIN1 inhibitors may be used to overcome drug resistance in gastric cancer.
Collapse
Affiliation(s)
- Zhen-Zhen Zhang
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, Fujian Medical University, Fuzhou, Fujian, China.
- Department of Pathology of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Wei-Xing Yu
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Min Zheng
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Xin-Hua Liao
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Ji-Chuang Wang
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Da-Yun Yang
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Wen-Xian Lu
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Long Wang
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Sheng Zhang
- Department of Pathology of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - He-Kun Liu
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Xiao Zhen Zhou
- Division of Translational Therapeutics, Department of Medicine and Cancer Research Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Kun Ping Lu
- Division of Translational Therapeutics, Department of Medicine and Cancer Research Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
7
|
Tagit O, Hildebrandt N. Fluorescence Sensing of Circulating Diagnostic Biomarkers Using Molecular Probes and Nanoparticles. ACS Sens 2017; 2:31-45. [PMID: 28722447 DOI: 10.1021/acssensors.6b00625] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The interplay of photonics, nanotechnology, and biochemistry has significantly improved the identification and characterization of multiple types of biomarkers by optical biosensors. Great achievements in fluorescence-based technologies have been realized, for example, by the advancement of multiplexing techniques or the introduction of nanoparticles to biochemical and clinical research. This review presents a concise overview of recent advances in fluorescence sensing techniques for the detection of circulating disease biomarkers. Detection principles of representative approaches, including fluorescence detection using molecular fluorophores, quantum dots, and metallic and silica nanoparticles, are explained and illustrated by pertinent examples from the recent literature. Advanced detection technologies and material development play a major role in modern biosensing and consistently provide significant improvements toward robust, sensitive, and versatile platforms for early detection of circulating diagnostic biomarkers.
Collapse
Affiliation(s)
- Oya Tagit
- NanoBioPhotonics
(nanofret.com), Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, CEA, 91405 Orsay, France
- Department
of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Niko Hildebrandt
- NanoBioPhotonics
(nanofret.com), Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, CEA, 91405 Orsay, France
| |
Collapse
|
8
|
Zhao Q, Cai W, Zhang X, Tian S, Zhang J, Li H, Hou C, Ma X, Chen H, Huang B, Chen D. RYBP Expression Is Regulated by KLF4 and Sp1 and Is Related to Hepatocellular Carcinoma Prognosis. J Biol Chem 2016; 292:2143-2158. [PMID: 28028181 DOI: 10.1074/jbc.m116.770727] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Indexed: 01/01/2023] Open
Abstract
The expression of Ring1- and YY1-binding protein (RYBP) is reduced in several human cancers, but the molecular mechanism(s) have remained elusive. In this study, we used human hepatocellular carcinoma (HCC) cell lines and tissue specimens to study the mechanism and herein report several new findings. First, we cloned and characterized the basal promoter region of the human RYBP gene. We found that the decreased RYBP expression in HCC tissues was not due to promoter sequence variation/polymorphisms or CpG dinucleotide methylation. We identified two transcription factors, KLF4 and Sp1, which directly bind the promoter region of RYBP to induce and suppress RYBP transcription, respectively. We mapped the binding sites of KLF4 and Sp1 on the RYBP promoter. Studies in vitro showed that KLF4 suppresses whereas Sp1 promotes HCC cell growth through modulating RYBP expression. Deregulated KLF4 and Sp1 contributed to decreased expression of RYBP in HCC tumor tissues. Our studies of human HCC tissues indicated that a diminished RYBP level in the tumor (in association with altered KLF4 and Sp1 expression) was statistically associated with a larger tumor size, poorer differentiation, and an increased susceptibility to distant metastasis. These findings help to clarify why RYBP is decreased in HCC and indicate that deregulated KLF4, Sp1, and RYBP may lead to a poorer prognosis. Our findings support the idea that RYBP may represent a target for cancer therapy and suggest that it may be useful as a prognostic biomarker for HCC, either alone or in combination with KLF4 and Sp1.
Collapse
Affiliation(s)
- Qiaojiajie Zhao
- From the State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Weihua Cai
- the Department of Hepatobiliary Surgery, Nantong Third Hospital, Nantong University, Nantong, Jiangsu 226006, China, and
| | - Xuan Zhang
- From the State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Shuo Tian
- From the State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Junwen Zhang
- From the State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Haibo Li
- the Department of Clinical Laboratory Medicine, Nantong Maternal and Child Health Hospital, Nantong, Jiangsu 226018, China
| | - Congcong Hou
- From the State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Xiaoli Ma
- From the State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Hong Chen
- From the State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Bingren Huang
- From the State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China,
| | - Deng Chen
- From the State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China,
| |
Collapse
|
9
|
Roszkowiak L, Lopez C. PATMA: parser of archival tissue microarray. PeerJ 2016; 4:e2741. [PMID: 27920955 PMCID: PMC5136132 DOI: 10.7717/peerj.2741] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 10/31/2016] [Indexed: 02/04/2023] Open
Abstract
Tissue microarrays are commonly used in modern pathology for cancer tissue evaluation, as it is a very potent technique. Tissue microarray slides are often scanned to perform computer-aided histopathological analysis of the tissue cores. For processing the image, splitting the whole virtual slide into images of individual cores is required. The only way to distinguish cores corresponding to specimens in the tissue microarray is through their arrangement. Unfortunately, distinguishing the correct order of cores is not a trivial task as they are not labelled directly on the slide. The main aim of this study was to create a procedure capable of automatically finding and extracting cores from archival images of the tissue microarrays. This software supports the work of scientists who want to perform further image processing on single cores. The proposed method is an efficient and fast procedure, working in fully automatic or semi-automatic mode. A total of 89% of punches were correctly extracted with automatic selection. With an addition of manual correction, it is possible to fully prepare the whole slide image for extraction in 2 min per tissue microarray. The proposed technique requires minimum skill and time to parse big array of cores from tissue microarray whole slide image into individual core images.
Collapse
Affiliation(s)
- Lukasz Roszkowiak
- Laboratory of Processing Systems of Microscopic Image Information, Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland
| | - Carlos Lopez
- Molecular Biology & Research Laboratory (IISPV, URV), Hospital de Tortosa Verge de la Cinta, Tortosa, Spain
| |
Collapse
|
10
|
Elkablawy MA, Albasri AM. High quality tissue miniarray technique using a conventional TV/radio telescopic antenna. Asian Pac J Cancer Prev 2015; 16:1129-33. [PMID: 25735343 DOI: 10.7314/apjcp.2015.16.3.1129] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The tissue microarray (TMA) is widely accepted as a fast and cost-effective research tool for in situ tissue analysis in modern pathology. However, the current automated and manual TMA techniques have some drawbacks restricting their productivity. Our study aimed to introduce an improved manual tissue miniarray (TmA) technique that is simple and readily applicable to a broad range of tissue samples. MATERIALS AND METHODS In this study, a conventional TV/radio telescopic antenna was used to punch tissue cores manually from donor paraffin embedded tissue blocks which were pre-incubated at 40oC. The cores were manually transferred, organized and attached to a standard block mould, and filled with liquid paraffin to construct TmA blocks without any use of recipient paraffin blocks. RESULTS By using a conventional TV/radio antenna, it was possible to construct TmA paraffin blocks with variable formats of array size and number (2-mm x 42, 2.5-mm x 30, 3-mm x 24, 4-mm x 20 and 5-mm x 12 cores). Up to 2-mm x 84 cores could be mounted and stained on a standard microscopic slide by cutting two sections from two different blocks and mounting them beside each other. The technique was simple and caused minimal damage to the donor blocks. H and E and immunostained slides showed well-defined tissue morphology and array configuration. CONCLUSIONS This technique is easy to reproduce, quick, inexpensive and creates uniform blocks with abundant tissues without specialized equipment. It was found to improve the stability of the cores within the paraffin block and facilitated no losses during cutting and immunostaining.
Collapse
Affiliation(s)
- Mohamed A Elkablawy
- Pathology Department, Faculty of Medicine, Menoufyia University, Shibeen Elkom, Egypt E-mail :
| | | |
Collapse
|
11
|
Shi Y, He D, Hou Y, Hu Q, Xu C, Liu Y, Jiang D, Su J, Zeng H, Tan Y. An alternative high output tissue microarray technique. Diagn Pathol 2013; 8:9. [PMID: 23336116 PMCID: PMC3599403 DOI: 10.1186/1746-1596-8-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 01/08/2013] [Indexed: 11/10/2022] Open
Abstract
Background Tissue microarray (TMA) is a high throughput research tool, which has greatly facilitated and accelerated in situ tissue analyses. However, its productivity has been restricted due to the confined thickness of traditional donor block. Here, we introduce an improved high output TMA method that is applicable to a broader range of tissue samples. Methods In this method, a 3.6 cm long and 2.7 cm wide recipient block with 88 square lattices (3 mm in width) was first prepared using several commercial instruments. A 2 mm wide and 6 mm long tissue rod was then prepared using a self-made blade-shaped knife from each paraffin embedded donor block of gastrointestinal stromal tumors. These rods were manually arrayed one by one into the corresponding lattices of the 60°C pre-softened recipient block with the guide of holes drilled with a steel needle. A 70-rod TMA was made to testify this method. Results The prepared TMA had well defined array configurations, good tissue morphology and fully preserved proteins and DNA. A total of 500–1000 TMA sections could be easily obtained from a TMA block. Conclusion This low-cost and time-saving method provides an alternative sampling tool for high output TMA. Virtual Slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1979605867857990
Collapse
Affiliation(s)
- Yuan Shi
- Department of Pathology, Zhongshan Hospital, Fudan University, Fenglin Road #180, Shanghai, P.R. China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Abstract
Tissue microarrays (TMAs) enable high-throughput tissue analysis by selecting a large number of -paraffin-embedded donor tissue block cores and transferring these tissue cores into a positionally encoded array in the recipient TMA block. Once TMAs are constructed, a variety of analysis may be performed on the arrays including histochemical, immunohistochemical, or immunofluorescent staining, and in situ hybridization for DNA or RNA. TMAs offer a cost-effective method for performing parallel analysis of a large number of tissue samples. In this chapter we outline the method of TMA construction with an emphasis on providing useful information in the analysis of a variety of pancreatic neoplasms, including pancreatic adenocarcinomas and pre-invasive lesions. The technique of TMA construction in this chapter is restricted to the use of formalin-fixed paraffin-embedded tissue.
Collapse
Affiliation(s)
- Helen Remotti
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY, USA.
| |
Collapse
|