1
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Zhang P, Li W, Liu C, Qin F, Lu Y, Qin M, Hou Y. Molecular imaging of tumour-associated pathological biomarkers with smart nanoprobe: From "Seeing" to "Measuring". EXPLORATION (BEIJING, CHINA) 2023; 3:20230070. [PMID: 38264683 PMCID: PMC10742208 DOI: 10.1002/exp.20230070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/18/2023] [Indexed: 01/25/2024]
Abstract
Although the extraordinary progress has been made in molecular biology, the prevention of cancer remains arduous. Most solid tumours exhibit both spatial and temporal heterogeneity, which is difficult to be mimicked in vitro. Additionally, the complex biochemical and immune features of tumour microenvironment significantly affect the tumour development. Molecular imaging aims at the exploitation of tumour-associated molecules as specific targets of customized molecular probe, thereby generating image contrast of tumour markers, and offering opportunities to non-invasively evaluate the pathological characteristics of tumours in vivo. Particularly, there are no "standard markers" as control in clinical imaging diagnosis of individuals, so the tumour pathological characteristics-responsive nanoprobe-based quantitative molecular imaging, which is able to visualize and determine the accurate content values of heterogeneous distribution of pathological molecules in solid tumours, can provide criteria for cancer diagnosis. In this context, a variety of "smart" quantitative molecular imaging nanoprobes have been designed, in order to provide feasible approaches to quantitatively visualize the tumour-associated pathological molecules in vivo. This review summarizes the recent achievements in the designs of these nanoprobes, and highlights the state-of-the-art technologies in quantitative imaging of tumour-associated pathological molecules.
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Affiliation(s)
- Peisen Zhang
- College of Life Science and TechnologyBeijing University of Chemical TechnologyBeijingChina
- Department of ChemistryUniversity of TorontoTorontoOntarioCanada
| | - Wenyue Li
- College of Life Science and TechnologyBeijing University of Chemical TechnologyBeijingChina
| | - Chuang Liu
- College of Life Science and TechnologyBeijing University of Chemical TechnologyBeijingChina
| | - Feng Qin
- Department of Neurosurgery and National Chengdu Center for Safety Evaluation of DrugsState Key Laboratory of Biotherapy/Collaborative Innovation Center for BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Yijie Lu
- Department of ChemistryUniversity of TorontoTorontoOntarioCanada
| | - Meng Qin
- Department of Neurosurgery and National Chengdu Center for Safety Evaluation of DrugsState Key Laboratory of Biotherapy/Collaborative Innovation Center for BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Yi Hou
- College of Life Science and TechnologyBeijing University of Chemical TechnologyBeijingChina
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2
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Li N, Wang T, Wang N, Fan M, Cui X. A Substituted-Rhodamine-Based Reversible Fluorescent Probe for In Vivo Quantification of Glutathione. Angew Chem Int Ed Engl 2023; 62:e202217326. [PMID: 36564368 DOI: 10.1002/anie.202217326] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 12/25/2022]
Abstract
Quantifying glutathione (GSH) in cells and organisms is of great significance for understanding the mechanism of oxidative stress in various physiological and pathological processes. However, the quantification by fluorescence bioimaging in living tissues has much stricter requirements than the "Petri dish"-cultured cells in flat plates. Based on the evaluation of the electronic structure and steric hindrance-tuned reactivity of phospha-substituted rhodamine with GSH, a reversible Förster resonance energy transfer (FRET) probe ZpSiP with a distinct performance (Kd =4.9 mM, t1/2 =0.57 s, k=81 M-1 s-1 ) is developed for real time quantifying GSH in living cells. Furthermore, the near-infrared (NIR) probe succeeded in sensitively tracking the dynamics of GSH in the real organisms bearing tumors, chronic renal failure, and liver fibrosis for unveiling the related pathological processes. We believe that the advance in chemistry with quantitative analysis methods will initiate more promising progress and broad applications.
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Affiliation(s)
- Ni Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Ting Wang
- Department of Organic Chemistry, College of Pharmacy, Naval Medical University, 800 Xiangyin Road, Shanghai, 200433, P. R. China
| | - Ning Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Mengting Fan
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Xiaoyan Cui
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
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3
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Zhang P, Zeng J, Li Y, Yang C, Meng J, Hou Y, Gao M. Quantitative Mapping of Glutathione within Intracranial Tumors through Interlocked MRI Signals of a Responsive Nanoprobe. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Peisen Zhang
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Bei Yi Jie 2, Zhong Guan Cun Beijing 100190 China
- School of Chemistry and Chemical Engineering Institution University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jianfeng Zeng
- Center for Molecular Imaging and Nuclear Medicine School for Radiological and Interdisciplinary Sciences (RAD-X) Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions State Key Laboratory of Radiation Medicine and Protection Soochow University Suzhou 215123 China
| | - Yingying Li
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Bei Yi Jie 2, Zhong Guan Cun Beijing 100190 China
- School of Chemistry and Chemical Engineering Institution University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Chen Yang
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Bei Yi Jie 2, Zhong Guan Cun Beijing 100190 China
- School of Chemistry and Chemical Engineering Institution University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Junli Meng
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Bei Yi Jie 2, Zhong Guan Cun Beijing 100190 China
- School of Chemistry and Chemical Engineering Institution University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yi Hou
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Bei Yi Jie 2, Zhong Guan Cun Beijing 100190 China
| | - Mingyuan Gao
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Bei Yi Jie 2, Zhong Guan Cun Beijing 100190 China
- School of Chemistry and Chemical Engineering Institution University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Center for Molecular Imaging and Nuclear Medicine School for Radiological and Interdisciplinary Sciences (RAD-X) Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions State Key Laboratory of Radiation Medicine and Protection Soochow University Suzhou 215123 China
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4
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Zhang P, Zeng J, Li Y, Yang C, Meng J, Hou Y, Gao M. Quantitative Mapping of Glutathione within Intracranial Tumors through Interlocked MRI Signals of a Responsive Nanoprobe. Angew Chem Int Ed Engl 2021; 60:8130-8138. [PMID: 33283373 DOI: 10.1002/anie.202014348] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/23/2020] [Indexed: 12/26/2022]
Abstract
Studies reveal that malignant tumors feature uneven distributions of some key biomarkers across the entire tumorous region. Nevertheless, only very limited progress has been made towards non-invasive and quantitative detection of tumor-specific biomarkers in vivo, especially with clinically compatible imaging modalities. Reported here is an Fe3 O4 nanoparticle-based glutathione (GSH) responsive magnetic resonance imaging (MRI) probe that can form particle aggregates within tumors in vivo to give rise to strong GSH concentration dependent interlocked relaxivities. A quantitative correlation between the interlocked MRI signals and local GSH concentration was established, and further applied for mapping the heterogeneous distribution of GSH within an intracranial tumor (2.4 mm × 1.6 mm) in vivo. This methodology will offer a practical route for quantitatively mapping tumor-specific biomarkers in vivo with unlimited detection depth, which largely challenges optical-imaging-based approaches.
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Affiliation(s)
- Peisen Zhang
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing, 100190, China.,School of Chemistry and Chemical Engineering Institution, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jianfeng Zeng
- Center for Molecular Imaging and Nuclear Medicine, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, China
| | - Yingying Li
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing, 100190, China.,School of Chemistry and Chemical Engineering Institution, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chen Yang
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing, 100190, China.,School of Chemistry and Chemical Engineering Institution, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Junli Meng
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing, 100190, China.,School of Chemistry and Chemical Engineering Institution, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yi Hou
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing, 100190, China
| | - Mingyuan Gao
- Department Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing, 100190, China.,School of Chemistry and Chemical Engineering Institution, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.,Center for Molecular Imaging and Nuclear Medicine, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, China
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5
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Discrimination between HCV29 and T24 by controlled proliferation of cells co-cultured on substrates with different elasticity. J Mech Behav Biomed Mater 2018; 88:217-222. [DOI: 10.1016/j.jmbbm.2018.08.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/22/2018] [Accepted: 08/26/2018] [Indexed: 12/16/2022]
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6
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Xue W, Li W, Shang Y, Zhang Y, Lan X, Wang G, Li Z, Zhang X, Song Y, Wu B, Dong M, Wang X, Zhang M. One method to establish Epstein-Barr virus-associated NK/T cell lymphoma mouse models. J Cell Mol Med 2018; 23:1509-1516. [PMID: 30484952 PMCID: PMC6349153 DOI: 10.1111/jcmm.14057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 10/22/2018] [Accepted: 11/05/2018] [Indexed: 01/18/2023] Open
Abstract
Novel nude mice model of human NK/T cell lymphoma were established by subcutaneously injecting two NK/T cell lymphoma cell lines into the right axillary region of mice and successful passages were completed by injecting cell suspension which was obtained through a 70‐μm cell strainer. These mice models and corresponding cell clones have been successfully developed for more than 8 generations. The survival rates of both resuscitation and transplantation in NKYS and YT models were 90% and 70% correspondingly. Pathologically, the tumour cells in all passages of the lymphoma‐bearing mice and cell lines obtained from tumours were parallel to initial cell lines. Immunologically, the tumour cells expressed the characteristics of the primary and essential NK/T lymphomas. The novel mice models maintained the essential features of human NK/T cell lymphoma, and they would be ideal tools in vivo for further research of human NK/T cell lymphoma.
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Affiliation(s)
- Weili Xue
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Weiming Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Yufeng Shang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanjie Zhang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xuan Lan
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guannan Wang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhaoming Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Lymphoma Diagnosis and Treatment Center of Henan Province, Zhengzhou, China
| | - Xudong Zhang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Lymphoma Diagnosis and Treatment Center of Henan Province, Zhengzhou, China
| | - Yue Song
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Baopeng Wu
- The Boiler & Pressure Vessel Safety Inspection Institute of Henan Province, Zhengzhou, China
| | - Meng Dong
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xinhua Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Lymphoma Diagnosis and Treatment Center of Henan Province, Zhengzhou, China
| | - Mingzhi Zhang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Jonint International Research Laboratory of Lymphoma, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Lymphoma Diagnosis and Treatment Center of Henan Province, Zhengzhou, China
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7
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Mondal AM, Zhou H, Horikawa I, Suprynowicz FA, Li G, Dakic A, Rosenthal B, Ye L, Harris CC, Schlegel R, Liu X. Δ133p53α, a natural p53 isoform, contributes to conditional reprogramming and long-term proliferation of primary epithelial cells. Cell Death Dis 2018; 9:750. [PMID: 29970881 PMCID: PMC6030220 DOI: 10.1038/s41419-018-0767-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/25/2018] [Accepted: 06/08/2018] [Indexed: 12/12/2022]
Abstract
We previously developed the technique of conditional reprogramming (CR), which allows primary epithelial cells from fresh or cryopreserved specimens to be propagated long-term in vitro, while maintaining their genetic stability and differentiation potential. This method requires a combination of irradiated fibroblast feeder cells and a Rho-associated kinase (ROCK) inhibitor. In the present study, we demonstrate increased levels of full-length p53 and its natural isoform, Δ133p53α, in conditionally reprogrammed epithelial cells from primary prostate, foreskin, ectocervical, and mammary tissues. Increased Δ133p53α expression is critical for CR since cell proliferation is rapidly inhibited following siRNA knockdown of endogenous Δ133p53α. Importantly, overexpression of Δ133p53α consistently delays the onset of cellular senescence of primary cells when cultured under non-CR conditions in normal keratinocyte growth medium (KGM). More significantly, the combination of Δ133p53α overexpression and ROCK inhibitor, without feeder cells, enables primary epithelial cells to be propagated long-term in vitro. We also show that Δ133p53α overexpression induces hTERT expression and telomerase activity and that siRNA knockdown of hTERT causes rapid inhibition of cell proliferation, indicating a critical role of hTERT for mediating the effects of Δ133p53α. Altogether, these data demonstrate a functional and regulatory link between p53 pathways and hTERT expression during the conditional reprogramming of primary epithelial cells.
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Affiliation(s)
- Abdul M Mondal
- Center for Cell Reprograming, Department of Pathology, Georgetown University Medical Center, Georgrtown, WA, 20057, USA
| | - Hua Zhou
- Center for Cell Reprograming, Department of Pathology, Georgetown University Medical Center, Georgrtown, WA, 20057, USA.,Guizhou Medical University, Guiyang, Guizhou, China
| | - Izumi Horikawa
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Frank A Suprynowicz
- Center for Cell Reprograming, Department of Pathology, Georgetown University Medical Center, Georgrtown, WA, 20057, USA
| | - Guangzhao Li
- Center for Cell Reprograming, Department of Pathology, Georgetown University Medical Center, Georgrtown, WA, 20057, USA
| | - Aleksandra Dakic
- Center for Cell Reprograming, Department of Pathology, Georgetown University Medical Center, Georgrtown, WA, 20057, USA
| | - Bernard Rosenthal
- Center for Cell Reprograming, Department of Pathology, Georgetown University Medical Center, Georgrtown, WA, 20057, USA
| | - Lin Ye
- Center for Cell Reprograming, Department of Pathology, Georgetown University Medical Center, Georgrtown, WA, 20057, USA.,Shenzhen Eye Hospital, Shenzhen, Guangdong, China
| | - Curtis C Harris
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Richard Schlegel
- Center for Cell Reprograming, Department of Pathology, Georgetown University Medical Center, Georgrtown, WA, 20057, USA.
| | - Xuefeng Liu
- Center for Cell Reprograming, Department of Pathology, Georgetown University Medical Center, Georgrtown, WA, 20057, USA. .,Second Xianya Hospital (Adjunct Position), Zhongnan University, Changsha, Huna, China. .,Affiliated Cancer Hospital & Institute (Adjunct Position), Guangzhou Medical University, Guangzhou, Guangdong, China.
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8
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Liu X, Krawczyk E, Suprynowicz FA, Palechor-Ceron N, Yuan H, Dakic A, Simic V, Zheng YL, Sripadhan P, Chen C, Lu J, Hou TW, Choudhury S, Kallakury B, Tang DG, Darling T, Thangapazham R, Timofeeva O, Dritschilo A, Randell SH, Albanese C, Agarwal S, Schlegel R. Conditional reprogramming and long-term expansion of normal and tumor cells from human biospecimens. Nat Protoc 2017; 12:439-451. [PMID: 28125105 PMCID: PMC6195120 DOI: 10.1038/nprot.2016.174] [Citation(s) in RCA: 213] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Historically, it has been difficult to propagate cells in vitro that are derived directly from human tumors or healthy tissue. However, in vitro preclinical models are essential tools for both the study of basic cancer biology and the promotion of translational research, including drug discovery and drug target identification. This protocol describes conditional reprogramming (CR), which involves coculture of irradiated mouse fibroblast feeder cells with normal and tumor human epithelial cells in the presence of a Rho kinase inhibitor (Y-27632). CR cells can be used for various applications, including regenerative medicine, drug sensitivity testing, gene expression profiling and xenograft studies. The method requires a pathologist to differentiate healthy tissue from tumor tissue, and basic tissue culture skills. The protocol can be used with cells derived from both fresh and cryopreserved tissue samples. As approximately 1 million cells can be generated in 7 d, the technique is directly applicable to diagnostic and predictive medicine. Moreover, the epithelial cells can be propagated indefinitely in vitro, yet retain the capacity to become fully differentiated when placed into conditions that mimic their natural environment.
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Affiliation(s)
- Xuefeng Liu
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
- Correspondence should be addressed to X.L. () or R.S. ()
| | - Ewa Krawczyk
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
- Correspondence should be addressed to X.L. () or R.S. ()
| | - Frank A Suprynowicz
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Nancy Palechor-Ceron
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Hang Yuan
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Aleksandra Dakic
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Vera Simic
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Yun-Ling Zheng
- Department of Oncology, Georgetown University Medical Center, Washington, DC, USA
| | - Praathibha Sripadhan
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Chen Chen
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Jie Lu
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Tung-Wei Hou
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Sujata Choudhury
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Bhaskar Kallakury
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Dean G Tang
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Smithville, Texas, USA
| | - Thomas Darling
- Department of Dermatology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Rajesh Thangapazham
- Department of Dermatology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Olga Timofeeva
- Department of Oncology, Georgetown University Medical Center, Washington, DC, USA
- Department of Radiation Medicine, Georgetown University Medical Center, Washington, DC, USA
| | - Anatoly Dritschilo
- Department of Radiation Medicine, Georgetown University Medical Center, Washington, DC, USA
| | - Scott H Randell
- Department of Cell Biology and Physiology, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Christopher Albanese
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
- Department of Oncology, Georgetown University Medical Center, Washington, DC, USA
| | - Seema Agarwal
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
| | - Richard Schlegel
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
- Center for Cell Reprogramming, Georgetown University Medical Center, Washington, DC, USA
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9
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Čunderlíková B. Clinical significance of immunohistochemically detected extracellular matrix proteins and their spatial distribution in primary cancer. Crit Rev Oncol Hematol 2016; 105:127-44. [DOI: 10.1016/j.critrevonc.2016.04.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 04/03/2016] [Accepted: 04/27/2016] [Indexed: 02/07/2023] Open
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10
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Horilova J, Cunderlikova B, Marcek Chorvatova A. Time- and spectrally resolved characteristics of flavin fluorescence in U87MG cancer cells in culture. JOURNAL OF BIOMEDICAL OPTICS 2015; 20:51017. [PMID: 25521208 DOI: 10.1117/1.jbo.20.5.051017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 11/11/2014] [Indexed: 06/04/2023]
Abstract
Early detection of cancer is crucial for the successful diagnostics of its presence and its subsequent treatment. To improve cancer detection, we tested the progressive multimodal optical imaging of U87MG cells in culture. A combination of steady-state spectroscopic methods with the time-resolved approach provides a new insight into the native metabolism when focused on endogenous tissue fluorescence. In this contribution, we evaluated the metabolic state of living U87MG cancer cells in culture by means of endogenous flavin fluorescence. Confocal microscopy and time-resolved fluorescence imaging were employed to gather spectrally and time-resolved images of the flavin fluorescence. We observed that flavin fluorescence in U87MG cells was predominantly localized outside the cell nucleus in mitochondria, while exhibiting a spectral maximum under 500 nm and fluorescence lifetimes under 1.4 ns, suggesting the presence of bound flavins. In some cells, flavin fluorescence was also detected inside the cell nuclei in the nucleoli, exhibiting longer fluorescence lifetimes and a red-shifted spectral maximum, pointing to the presence of free flavin. Extra-nuclear flavin fluorescence was diminished by 2-deoxyglucose, but failed to increase with 2,4-dinitrophenol, the uncoupler of oxidative phosphorylation, indicating that the cells use glycolysis, rather than oxidative phosphorylation for functioning. These gathered data are the first step toward monitoring the metabolic state of U87MG cancer cells.
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Affiliation(s)
- Julia Horilova
- International Laser Centre, Department of Biophotonics, Ilkovicova 3, Bratislava 841 04, SlovakiabPavol Jozef Safarik University, Department of Biophysics, Faculty of Science, Jesenna 5, Kosice 040 01, Slovakia
| | - Beata Cunderlikova
- International Laser Centre, Department of Biophotonics, Ilkovicova 3, Bratislava 841 04, SlovakiacComenius University, Institute of Medical Physics, Biophysics, Informatics and Telemedicine, Faculty of Medicine, Sasinkova 2, Bratislava 813 72, Slovakia
| | - Alzbeta Marcek Chorvatova
- International Laser Centre, Department of Biophotonics, Ilkovicova 3, Bratislava 841 04, SlovakiadUniversity of Ss. Cyril and Methodius, Department of Biotechnology, Faculty of Natural Sciences, Nám. J. Herdu 2, Trnava 917 01, Slovakia
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11
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Sivanathan L, Chow A, Wong A, Hoang VC, Emmenegger U. In vivo passage of human prostate cancer cells in mice results in stable gene expression changes affecting numerous cancer-associated biological processes. Prostate 2014; 74:537-46. [PMID: 24435653 DOI: 10.1002/pros.22774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 12/23/2013] [Indexed: 11/09/2022]
Abstract
BACKGROUND While therapeutic resistance is difficult to model in vitro in its entirety, in vivo passage and re-derivation of treatment resistant prostate cancer cell variants is a strategy to study therapeutic resistance more comprehensively. However, the process of in vivo passage itself may result in gene expression changes that could confound the analysis of such resistant cell variants compared to their parental cell lines. METHODS We compared the expression profiles of parental PC-3 human prostate cancer cells and PC-3 cells re-derived after in vivo passage in athymic nude mice. Whole transcriptome information was obtained using the SOLiD 4 system (Applied Biosystems). Differentially expressed genes were mapped to genes in the Database for Annotation, Visualization and Integrated Discovery for gene enrichment and functional annotation analysis. The expression of a panel of these genes was validated using quantitative RT-PCR. RESULTS Altogether, 21,032 distinct transcripts were found in PC-3 and/or NS1.1. Of these, 906 were differentially regulated (≥2-fold) in NS1.1 versus PC-3. 337 transcripts were upregulated, and 569 were downregulated, including genes previously associated with various aspects of prostate carcinogenesis such as TLR4 and IGFBP5, respectively. Gene ontology analysis of the differentially expressed transcripts revealed enrichment for biological processes such as cell adhesion, migration, and angiogenesis. CONCLUSIONS When using in vivo as opposed to in vitro derived prostate cancer cell variants for comparative genetic studies of complex traits such as therapeutic resistance, one may be better served to use similarly in vivo passaged control cell variants instead of parental cell lines.
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Affiliation(s)
- Lavarnan Sivanathan
- Biological Sciences Platform, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
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Peterson CW, Younan P, Jerome KR, Kiem HP. Combinatorial anti-HIV gene therapy: using a multipronged approach to reach beyond HAART. Gene Ther 2013; 20:695-702. [PMID: 23364313 DOI: 10.1038/gt.2012.98] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 11/19/2012] [Accepted: 11/22/2012] [Indexed: 12/11/2022]
Abstract
The 'Berlin Patient', who maintains suppressed levels of HIV viremia in the absence of antiretroviral therapy, continues to be a standard bearer in HIV eradication research. However, the unique circumstances surrounding his functional cure are not applicable to most HIV(+) patients. To achieve a functional or sterilizing cure in a greater number of infected individuals worldwide, combinatorial treatments, targeting multiple stages of the viral life cycle, will be essential. Several anti-HIV gene therapy approaches have been explored recently, including disruption of the C-C chemokine receptor 5 (CCR5) and CXC chemokine receptor 4 (CXCR4) coreceptor loci in CD4(+) T cells and CD34(+) hematopoietic stem cells. However, less is known about the efficacy of these strategies in patients and more relevant HIV model systems such as non-human primates (NHPs). Combinatorial approaches, including genetic disruption of integrated provirus, functional enhancement of endogenous restriction factors and/or the use of pharmacological adjuvants, could amplify the anti-HIV effects of CCR5/CXCR4 gene disruption. Importantly, delivering gene disruption molecules to genetic sites of interest will likely require optimization on a cell type-by-cell type basis. In this review, we highlight the most promising gene therapy approaches to combat HIV infection, methods to deliver these therapies to hematopoietic cells and emphasize the need to target viral replication pre- and post-entry to mount a suitably robust defense against spreading infection.
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Affiliation(s)
- C W Peterson
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
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