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Heumüller-Klug S, Maurer K, Tapia-Laliena MÁ, Sticht C, Christmann A, Mörz H, Khasanov R, Wink E, Schulte S, Greffrath W, Treede RD, Wessel LM, Schäfer KH. Impact of cryopreservation on viability, gene expression and function of enteric nervous system derived neurospheres. Front Cell Dev Biol 2023; 11:1196472. [PMID: 37377739 PMCID: PMC10291272 DOI: 10.3389/fcell.2023.1196472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Introduction: Impairment of both the central and peripheral nervous system is a major cause of mortality and disability. It varies from an affection of the brain to various types of enteric dysganglionosis. Congenital enteric dysganglionosis is characterized by the local absence of intrinsic innervation due to deficits in either migration, proliferation or differentiation of neural stem cells. Despite surgery, children's quality of life is reduced. Neural stem cell transplantation seems a promising therapeutic approach, requiring huge amounts of cells and multiple approaches to fully colonize the diseased areas completely. A combination of successful expansion and storage of neural stem cells is needed until a sufficient amount of cells is generated. This must be combined with suitable cell transplantation strategies, that cover all the area affected. Cryopreservation provides the possibility to store cells for long time, unfortunately with side effects, i.e., upon vitality. Methods: In this study we investigate the impact of different freezing and thawing protocols (M1-M4) upon enteric neural stem cell survival, protein and gene expression, and cell function. Results: Freezing enteric nervous system derived neurospheres (ENSdN) following slow-freezing protocols (M1-3) resulted in higher survival rates than flash-freezing (M4). RNA expression profiles were least affected by freezing protocols M1/2, whereas the protein expression of ENSdN remained unchanged after treatment with protocol M1 only. Cells treated with the most promising freezing protocol (M1, slow freezing in fetal calf serum plus 10% DMSO) were subsequently investigated using single-cell calcium imaging. Freezing of ENSdN did not alter the increase in intracellular calcium in response to a specific set of stimuli. Single cells could be assigned to functional subgroups according to response patterns and a significant shift towards cells responding to nicotine was observed after freezing. Discussion: The results demonstrate that cryopreservation of ENSdN is possible with reduced viability, only slight changes in protein/gene expression patterns and without an impact on the neuronal function of different enteric nervous system cell subtypes, with the exception of a subtle upregulation of cells expressing nicotinergic acetylcholine receptors. In summary, cryopreservation presents a good method to store sufficient amounts of enteric neural stem cells without neuronal impairment, in order to enable subsequent transplantation of cells into compromised tissues.
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Affiliation(s)
- Sabine Heumüller-Klug
- Department of Pediatric Surgery, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Kristina Maurer
- Department of Pediatric Surgery, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - María Á. Tapia-Laliena
- Department of Pediatric Surgery, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Carsten Sticht
- Medical Research Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Anne Christmann
- AGENS, University of Applied Sciences Kaiserslautern Campus Zweibrücken, Kaiserslautern, Germany
| | - Handan Mörz
- Mannheim Center for Translational Neuroscience (MCTN), Department of Neurophysiology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Rasul Khasanov
- Department of Pediatric Surgery, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Elvira Wink
- Department of Pediatric Surgery, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Steven Schulte
- AGENS, University of Applied Sciences Kaiserslautern Campus Zweibrücken, Kaiserslautern, Germany
| | - Wolfgang Greffrath
- Mannheim Center for Translational Neuroscience (MCTN), Department of Neurophysiology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Rolf-Detlef Treede
- Mannheim Center for Translational Neuroscience (MCTN), Department of Neurophysiology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Lucas M. Wessel
- Department of Pediatric Surgery, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Karl-Herbert Schäfer
- AGENS, University of Applied Sciences Kaiserslautern Campus Zweibrücken, Kaiserslautern, Germany
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Changes in telomere length and senescence markers during human ovarian tissue cryopreservation. Sci Rep 2021; 11:2238. [PMID: 33500500 PMCID: PMC7838193 DOI: 10.1038/s41598-021-81973-3] [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: 03/04/2020] [Accepted: 01/14/2021] [Indexed: 12/22/2022] Open
Abstract
Ovarian tissue cryopreservation is considered as a useful option to preserve fertility for cancer patients. This study purposed to evaluate the change of telomere length and senescence markers during human ovarian tissue cryopreservation. Ovarian tissues were obtained from women who underwent benign ovarian surgery in the gynecology research unit of a university hospital with prior consent and IRB approval. DNA was extracted from the ovarian tissues using a DNeasy tissue kit and telomere lengths in the DNA samples were determined by real time PCR before and after cryopreservation. All tissues were stained with hematoxylin–eosin and subjected to immunohistochemistry and TUNEL assays. Other senescence markers, including p53, p16, p21, and phospho-pRb proteins, were evaluated using western blot analysis. Ovarian tissues were collected from ten patients and prepared for slow freezing with the same size of diameter 4 mm and 1 mm thickness. Mean age of patients was 26.7 ± 6.2 years (range, 16–34 years), and ovarian tissues were cryopreserved and thawed 4 weeks after cryopreservation. The mean telomere length was significantly decreased after cryopreservation (9.57 ± 1.47 bp vs. 8.34 ± 1.83 bp, p = 0.001). Western blot analysis revealed that p53, p16, and p21 proteins increased and phospho-pRb protein expression decreased after ovarian tissue cryopreservation. Ovarian tissue cryopreservation and transplantation is regarded as one of promising options for fertility preservation. However, clinicians and researchers should be aware of possible irreversible DNA changes such as shortening of telomere length and alterations of other senescence markers in human ovarian tissues.
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Eini L, Naseri M, Karimi-Busheri F, Bozorgmehr M, Ghods R, Madjd Z. Primary colonospheres maintain stem cell-like key features after cryopreservation. J Cell Physiol 2019; 235:2452-2463. [PMID: 31578720 DOI: 10.1002/jcp.29150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 08/23/2019] [Indexed: 12/18/2022]
Abstract
The development of efficient and repeatable protocols for biobanking and prolonged storage of cancer stem cells (CSCs), with minimum alterations in biological function, is valuable and desired, particularly for retrospective analysis and clinical applications. In particular, data regarding the effect of cryopreservation on CSCs's functional features is scarce. In this regard, few studies have been shown that 3D spheroid structures, which enriched for CSCs, can keep their biological phenotype and genetic profiles. Here, for the first time, we present data on cryopreservation of CT-26 colonospheres, with the focus on essential stem cell-like properties after thawing. Tumor biopsy-derived colonospheres were frozen in standard freezing media (90% fetal bovine serum + 10% dimethyl sulfoxide) and stored in liquid nitrogen for 10 months. Then, cryopreservation effect on preservation of CSCs-related features was verified using real-time polymerase chain reaction for evaluation of stemness genes and flow cytometry for the putative colorectal CSC surface biomarkers. The self-renewal capacity of thawed spheres was also compared with their fresh counterparts using serial formation assay. Finally, tumorigenic capacity of both groups was evaluated in immunocompetence mouse model. Our data indicated that postthawed colonospheres had high viability without drastic alteration in biological and structural features and maintained self-renewal potential after sequential passages. Real-time analysis showed that both fresh and frozen colonospheres displayed similar expression pattern for key stemness genes: SOX2 and OCT4. Cryopreserved spheroids expressed CD133, CD166, and DCLK1 CSCs surface biomarkers at elevated levels when compared with parental as non-cryopreserved counterparts. Our electron scanning microscopy micrographs clearly demonstrated that postthawed colonospheres retain their integrity and cell surface morphology and characteristics. We also found that both fresh and frozen spheroids were equally tumorigenic. This study represented an effective strategy for reliable storage of intact CT-26 colonospheres; this can provide researchers with a functionally reliable repository of murine colorectal CSCs for their future CSCs projects.
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Affiliation(s)
- Leila Eini
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Basic Science, Faculty of Veterinary, Science and Research Branch of Islamic Azad University, Tehran, Iran
| | - Marzieh Naseri
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.,Student Research Committee, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Mahmood Bozorgmehr
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Roya Ghods
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Madjd
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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Pelisek J, Hegenloh R, Bauer S, Metschl S, Pauli J, Glukha N, Busch A, Reutersberg B, Kallmayer M, Trenner M, Wendorff H, Tsantilas P, Schmid S, Knappich C, Schaeffer C, Stadlbauer T, Biro G, Wertern U, Meisner F, Stoklasa K, Menges AL, Radu O, Dallmann-Sieber S, Karlas A, Knipfer E, Reeps C, Zimmermann A, Maegdefessel L, Eckstein HH. Biobanking: Objectives, Requirements, and Future Challenges-Experiences from the Munich Vascular Biobank. J Clin Med 2019; 8:jcm8020251. [PMID: 30781475 PMCID: PMC6406278 DOI: 10.3390/jcm8020251] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/01/2019] [Accepted: 02/12/2019] [Indexed: 12/13/2022] Open
Abstract
Collecting biological tissue samples in a biobank grants a unique opportunity to validate diagnostic and therapeutic strategies for translational and clinical research. In the present work, we provide our long-standing experience in establishing and maintaining a biobank of vascular tissue samples, including the evaluation of tissue quality, especially in formalin-fixed paraffin-embedded specimens (FFPE). Our Munich Vascular Biobank includes, thus far, vascular biomaterial from patients with high-grade carotid artery stenosis (n = 1567), peripheral arterial disease (n = 703), and abdominal aortic aneurysm (n = 481) from our Department of Vascular and Endovascular Surgery (January 2004–December 2018). Vascular tissue samples are continuously processed and characterized to assess tissue morphology, histological quality, cellular composition, inflammation, calcification, neovascularization, and the content of elastin and collagen fibers. Atherosclerotic plaques are further classified in accordance with the American Heart Association (AHA), and plaque stability is determined. In order to assess the quality of RNA from FFPE tissue samples over time (2009–2018), RNA integrity number (RIN) and the extent of RNA fragmentation were evaluated. Expression analysis was performed with two housekeeping genes—glyceraldehyde 3-phosphate dehydrogenase (GAPDH) and beta-actin (ACTB)—using TaqMan-based quantitative reverse-transcription polymerase chain reaction (qRT)-PCR. FFPE biospecimens demonstrated unaltered RNA stability over time for up to 10 years. Furthermore, we provide a protocol for processing tissue samples in our Munich Vascular Biobank. In this work, we demonstrate that biobanking is an important tool not only for scientific research but also for clinical usage and personalized medicine.
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Affiliation(s)
- Jaroslav Pelisek
- DZHK (German Centre for Cardiovascular Research), Munich Heart Alliance, 80636 Munich, Germany.
| | - Renate Hegenloh
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Sabine Bauer
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Susanne Metschl
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Jessica Pauli
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Nadiya Glukha
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Albert Busch
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Benedikt Reutersberg
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Michael Kallmayer
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Matthias Trenner
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Heiko Wendorff
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Pavlos Tsantilas
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Sofie Schmid
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Christoph Knappich
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Christoph Schaeffer
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Thomas Stadlbauer
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Gabor Biro
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Uta Wertern
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Franz Meisner
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Kerstin Stoklasa
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Anna-Leonie Menges
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Oksana Radu
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Sabine Dallmann-Sieber
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Angelos Karlas
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Eva Knipfer
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Christian Reeps
- University Centre for Vascular Medicine and Department of Vascular Surgery, University Hospital Carl Gustav Carus, Dresden University of Technology, 01307 Dresden, Germany.
| | - Alexander Zimmermann
- Department of Vascular and Endovascular Surgery, Technische Universität München, 81675 Munich, Germany.
| | - Lars Maegdefessel
- DZHK (German Centre for Cardiovascular Research), Munich Heart Alliance, 80636 Munich, Germany.
| | - Hans-Henning Eckstein
- DZHK (German Centre for Cardiovascular Research), Munich Heart Alliance, 80636 Munich, Germany.
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You ML, Chen YJ, Chong QY, Wu MM, Pandey V, Chen RM, Liu L, Ma L, Wu ZS, Zhu T, Lobie PE. Trefoil factor 3 mediation of oncogenicity and chemoresistance in hepatocellular carcinoma is AKT-BCL-2 dependent. Oncotarget 2018; 8:39323-39344. [PMID: 28445151 PMCID: PMC5503616 DOI: 10.18632/oncotarget.16950] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 03/07/2017] [Indexed: 12/14/2022] Open
Abstract
The efficacious treatment of hepatocellular carcinoma (HCC) remains a challenge, partially being attributed to intrinsic chemoresistance. Previous reports have observed increased TFF3 expression in HCC. Herein, we investigated the functional role of TFF3 in progression of HCC, and in both intrinsic and acquired chemoresistance. TFF3 expression was observed to be upregulated in HCC and associated with poor clinicopathological features and worse patient survival outcome. Functionally, forced expression of TFF3 in HCC cell lines increased cell proliferation, cell survival, anchorage-independent and 3D matrigel growth, cell invasion and migration, and in vivo tumor growth. In contrast, depleted expression of TFF3 decreased the oncogenicity of HCC cells as indicated by the above parameters. Furthermore, forced expression of TFF3 decreased doxorubicin sensitivity of HCC cells, which was attributed to increased doxorubicin efflux and cancer stem cell-like behavior of Hep3B cells. In contrast, depletion of TFF3 increased doxorubicin sensitivity and decreased cancer stem cell-like behavior of Hep3B cells. Correspondingly, TFF3 expression was markedly increased in Hep3B cells with acquired doxorubicin resistance, while the depletion of TFF3 resulted in re-sensitization of the Hep3B cells to doxorubicin. The increased doxorubicin efflux and enhanced cancer stem cell-like behavior of the doxorubicin-resistant Hep3B cells was observed to be dependent on TFF3 expression. In addition, we determined that TFF3-stimulated oncogenicity and chemoresistance in HCC cells was mediated by AKT-dependent expression of BCL-2. Hence, therapeutic inhibition of TFF3 should be considered to hinder HCC progression and overcome intrinsic and acquired chemoresistance in HCC.
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Affiliation(s)
- Ming-Liang You
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore
| | - Yi-Jun Chen
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore
| | - Qing-Yun Chong
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore
| | - Ming-Ming Wu
- Hefei National Laboratory for Physical Sciences at Microscale Hefei, Anhui, China.,The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui, China
| | - Vijay Pandey
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore
| | - Ru-Mei Chen
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore
| | - Liang Liu
- Department of Oncology and Department of Radiology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Lan Ma
- Tsinghua Berkeley Shenzhen Institute (TBSI), Shenzhen, China
| | - Zheng-Sheng Wu
- Department of Pathology, Anhui Medical University, Hefei, Anhui, China
| | - Tao Zhu
- Hefei National Laboratory for Physical Sciences at Microscale Hefei, Anhui, China.,The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui, China
| | - Peter E Lobie
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore.,Tsinghua Berkeley Shenzhen Institute (TBSI), Shenzhen, China
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Key Issues Related to Cryopreservation and Storage of Stem Cells and Cancer Stem Cells: Protecting Biological Integrity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 951:1-12. [PMID: 27837550 DOI: 10.1007/978-3-319-45457-3_1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cryopreservation and biobanking of stem cells are becoming increasingly important as stem cell technology and application attract the interest of industry, academic research, healthcare and patient organisations. Stem cell are already being used in the treatment of some diseases and it is anticipated that stem cell therapy will play a central role in future medicine. Similarly, the discovery of both hematopoietic and solid tumor stem cells and their clinical relevance have profoundly altered paradigms for cancer research as the cancer stem cells are considered promising new targets against cancer. Consequently, long-term cryopreservation and banking of normal and malignant stem cells is crucial and will inevitably become a routine procedure that requires highly regulated and safe methods of specimen storage. There is, however, an increasing amount of evidence showing contradictory results on the impact of cryopreservation and thawing of stem cells, including extensive physical and biological stresses, apoptosis and necrosis, mitochondrial injuries, changes to basal respiration and ATP production, cellular structural damage, telomere shortening and cellular senescence, and DNA damage and oxidative stress. Notably, cell surface proteins that play a major role in stem cell fate and are used as the biomarkers of stem cells are more vulnerable to cold stress than other proteins. There are also data supporting the alteration in some biological features and genetic integrity at the molecular level of the post-thawed stem cells. This article reviews the current and future challenges of cryopreservation of stem cells and stresses the need for further rigorous research on the methodologies for freezing and utilizing cancer stem cells following long-term storage.
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Neural differentiation potential of sympathoadrenal progenitors derived from fresh and cryopreserved neonatal porcine adrenal glands. Cryobiology 2016; 73:152-61. [PMID: 27539465 DOI: 10.1016/j.cryobiol.2016.08.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 08/11/2016] [Accepted: 08/13/2016] [Indexed: 11/22/2022]
Abstract
Stem/progenitor cells are thought to have the potential in the treatment of severe neurodegenerative diseases. Recently, sympathoadrenal progenitors expressing specific markers of neural crest derivatives and capable to differentiate into neurons were discovered in adult bovine and human adrenal glands, but there was no reported data on cryopreservation of sympathoadrenal progenitors. The aim of the present study was to examine the neural differentiation potential of sympathoadrenal progenitors derived from fresh and cryopreserved neonatal porcine adrenal glands. Considering impact of various initial state of frozen biomaterial on cell recovery, we carried out a comparative estimation of cryopreservation outcome both for adrenal tissue fragments and isolated primary cells. The estimation consisted of determining cell yield, viability, ability to adhere, proliferate and differentiate in vitro. Cells isolated from the fresh adrenal glands were cultured until confluence. A formation of sympathoadrenal progenitors-embedded spherical cell colonies, whose cells are differentiated then into βIII-tubulin-positive cells with neuron-like morphology, was observed on the monolayer. The colonies were well preserved after cryopreservation of cell culture with a cooling rate of 1 °C/min in the cryoprotectant media containing 5-15% of dimethylsulfoxide. Adrenal tissue fragments were cryopreserved in the presence of 10% dimethylsulfoxide at the cooling rates of 0.3; 1: 5; 40 and > 100 °C/min. Sympathoadrenal progenitors were recovered after cryopreservation with 0.3 °C/min cooling rate but not higher.
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Wang H, Yang M, Lin L, Ren H, Lin C, Lin S, Shen G, Ji B, Meng C. HepG2 cells acquire stem cell-like characteristics after immune cell stimulation. Cell Oncol (Dordr) 2015; 39:35-45. [DOI: 10.1007/s13402-015-0249-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2015] [Indexed: 01/06/2023] Open
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Integration, Networking, and Global Biobanking in the Age of New Biology. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 864:1-9. [DOI: 10.1007/978-3-319-20579-3_1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Liao S, Xiao S, Zhu G, Zheng D, He J, Pei Z, Li G, Zhou Y. CD38 is highly expressed and affects the PI3K/Akt signaling pathway in cervical cancer. Oncol Rep 2014; 32:2703-9. [PMID: 25310288 DOI: 10.3892/or.2014.3537] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 09/02/2014] [Indexed: 11/06/2022] Open
Abstract
Cervical cancer is the second most common cancer and the fifth most deadly malignancy in females worldwide, affecting 500,000 individuals each year. It is the leading cause of cancer mortality among women in developing countries. Dysregulated activation of genes, such as CD44, SOX9 and SKP2, plays a role in cervical cancer. CD38 is known to be involved in activities typical of cell surface receptors, such as signaling for activation and proliferation events and heterotypic cell adhesion. CD38 contributes to disease progression and relapse in certain tumors, such as acute myeloid and chronic lymphocytic leukemia. To the best of our knowledge, there is currently no report on the relationship between CD38 and cervical cancer. Using qPCR, immunohistochemistry, and western blot analysis, the expression levels of CD38 were investigated and found to be upregulated in cervical cancer. CD38 was correlated with dysregulation of the phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathway in cervical cancer tissues in vitro. At the same time, CD38 overexpression affected the expression of PI3K, Akt, MDM2 and p53 in vivo. The results of the present study suggested that CD38 is highly expressed in cervical carcinoma tissues and play an important role in dysregulation of the PI3K/Akt signaling pathway.
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Affiliation(s)
- Shan Liao
- Hunan Provincial Tumor Hospital and The Tumor Hospital Affiliated to Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Songshu Xiao
- Department of Gynecology and Obstetrics, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Guangchao Zhu
- Hunan Provincial Tumor Hospital and The Tumor Hospital Affiliated to Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Danwei Zheng
- Hunan Provincial Tumor Hospital and The Tumor Hospital Affiliated to Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Junyu He
- Hunan Provincial Tumor Hospital and The Tumor Hospital Affiliated to Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Zhen Pei
- Hunan Provincial Tumor Hospital and The Tumor Hospital Affiliated to Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Guiyuan Li
- Hunan Provincial Tumor Hospital and The Tumor Hospital Affiliated to Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Yanhong Zhou
- Hunan Provincial Tumor Hospital and The Tumor Hospital Affiliated to Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
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11
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Karimi-Busheri F, Rasouli-Nia A, Zadorozhny V, Fakhrai H. CD24+/CD38- as new prognostic marker for non-small cell lung cancer. Multidiscip Respir Med 2013; 8:65. [PMID: 24094028 PMCID: PMC3844723 DOI: 10.1186/2049-6958-8-65] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 07/31/2013] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Lung cancer is the leading cause of death among cancers in the world. The annual death toll due to this disease exceeds the combined deaths caused by colon, breast, prostate, and pancreatic cancers. As a result, there has been a tremendous effort to identify new biomarkers for early detection and diagnosis of lung cancer. METHODS In this study we report the results of screening a panel of eight non-small cell lung cancer (NSCLC) cell lines originating from different subtypes of lung cancer in an attempt to identify potential biomarkers unique to this disease. We used real-time polymerase chain reaction and flow cytometry techniques to analyze the expression of ALDHA1, EpCAM, CD133, CD24, and CD38 in this panel. RESULTS We demonstrate for the first time that the majority of NSCLC cells do not express levels of CD38 that would qualify it as a new biomarker for the disease. In contrast, we found that CD24 is over-expressed in 6 out of 8 of the cell lines. The combined CD24+/CD38-/low phenotype was detected in 50% of the cell lines that are also positive for CD133 and EpCAM. CONCLUSIONS We report that CD24+/CD38-/low signature could potentially be used as a new biomarker for the early detection of NSCLC.
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12
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Banerjee A, Qian P, Wu ZS, Ren X, Steiner M, Bougen NM, Liu S, Liu DX, Zhu T, Lobie PE. Artemin stimulates radio- and chemo-resistance by promoting TWIST1-BCL-2-dependent cancer stem cell-like behavior in mammary carcinoma cells. J Biol Chem 2012; 287:42502-15. [PMID: 23095743 DOI: 10.1074/jbc.m112.365163] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Artemin (ARTN) has been reported to promote a TWIST1-dependent epithelial to mesenchymal transition of estrogen receptor negative mammary carcinoma (ER-MC) cells associated with metastasis and poor survival outcome. We therefore examined a potential role of ARTN in the promotion of the cancer stem cell (CSC)-like phenotype in mammary carcinoma cells. Acquired resistance of ER-MC cells to either ionizing radiation (IR) or paclitaxel was accompanied by increased ARTN expression. Small interfering RNA (siRNA)-mediated depletion of ARTN in either IR- or paclitaxel-resistant ER-MC cells restored cell sensitivity to IR or paclitaxel. Expression of ARTN was enriched in ER-MC cells grown in mammospheric compared with monolayer culture and was also enriched along with BMI1, TWIST1, and DVL1 in mammospheric and ALDH1+ populations. ARTN promoted mammospheric growth and self-renewal of ER-MC cells and increased the ALDH1+ population, whereas siRNA-mediated depletion of ARTN diminished these CSC-like cell behaviors. Furthermore, increased ARTN expression was significantly correlated with ALDH1 expression in a cohort of ER-MC patients. Forced expression of ARTN also dramatically enhanced tumor initiating capacity of ER-MC cells in xenograft models at low inoculum. ARTN promotion of the CSC-like cell phenotype was mediated by TWIST1 regulation of BCL-2 expression. ARTN also enhanced mammosphere formation and the ALDH1+ population in estrogen receptor-positive mammary carcinoma (ER+MC) cells. Increased expression of ARTN and the functional consequences thereof may be one common adaptive mechanism used by mammary carcinoma cells to promote cell survival and renewal in hostile tumor microenvironments.
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Affiliation(s)
- Arindam Banerjee
- Liggins Institute, University of Auckland, Auckland 1023, New Zealand
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Issues of banking breast cancer cells to generate mammospheres. Cell Tissue Bank 2012; 14:153-8. [DOI: 10.1007/s10561-012-9320-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Accepted: 05/23/2012] [Indexed: 01/06/2023]
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Karimi-Busheri F, Zadorozhny V, Carrier E, Fakhrai H. Molecular integrity and global gene expression of breast and lung cancer stem cells under long-term storage and recovery. Cell Tissue Bank 2012; 14:175-86. [PMID: 22592563 PMCID: PMC3663207 DOI: 10.1007/s10561-012-9315-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Accepted: 04/20/2012] [Indexed: 12/12/2022]
Abstract
Cryopreservation is a common procedure widely used in biological and clinical sciences. Similar protocols are also applied in preserving cancer stem cells, a field with high promises and challenges. Specific cell surface membrane proteins are considered to be biomarkers of cancer stem cells and they may play a critical role in differentiating stem cells from non stem cells. We have looked at the possible effect of long-term cryopreservation on the molecular integrity of breast MCF7 and lung, A549 and H460, cancer stem cells and to assess if these cells are more sensitive to long-term storage process. We analyzed the expression of CD24 and CD38 as two potent biomarkers of lung cancer stem cells and EpCAM and ALDH that are used as biomarkers of a wide range of cancer stem cells. We also selected three genes essential for the normal functioning of the cells, Fos, MUC1, and HLA. Our results indicate a pattern of down-regulation in the expression of the genes following freezing, in particular among cell surface marker proteins. Global gene expression of the post-thaw breast and lung cancer stem cells also reveals a significant down-regulation in freeze-thaw cells independent from each other. Analyzing the canonical pathways between two populations reveals a significant alteration in the gene expression of the pathways involved in cell cycle, mitosis, and ataxia telangiectasia mutated pathways. Overall, our results indicate that current protocols for long-term storage of lung and breast cancer stem cells may substantially influence the activity and function of genes.
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