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Cai ZM, Li ZZ, Zhong NN, Cao LM, Xiao Y, Li JQ, Huo FY, Liu B, Xu C, Zhao Y, Rao L, Bu LL. Revolutionizing lymph node metastasis imaging: the role of drug delivery systems and future perspectives. J Nanobiotechnology 2024; 22:135. [PMID: 38553735 PMCID: PMC10979629 DOI: 10.1186/s12951-024-02408-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 03/18/2024] [Indexed: 04/02/2024] Open
Abstract
The deployment of imaging examinations has evolved into a robust approach for the diagnosis of lymph node metastasis (LNM). The advancement of technology, coupled with the introduction of innovative imaging drugs, has led to the incorporation of an increasingly diverse array of imaging techniques into clinical practice. Nonetheless, conventional methods of administering imaging agents persist in presenting certain drawbacks and side effects. The employment of controlled drug delivery systems (DDSs) as a conduit for transporting imaging agents offers a promising solution to ameliorate these limitations intrinsic to metastatic lymph node (LN) imaging, thereby augmenting diagnostic precision. Within the scope of this review, we elucidate the historical context of LN imaging and encapsulate the frequently employed DDSs in conjunction with a variety of imaging techniques, specifically for metastatic LN imaging. Moreover, we engage in a discourse on the conceptualization and practical application of fusing diagnosis and treatment by employing DDSs. Finally, we venture into prospective applications of DDSs in the realm of LNM imaging and share our perspective on the potential trajectory of DDS development.
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Affiliation(s)
- Ze-Min Cai
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Zi-Zhan Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Nian-Nian Zhong
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Lei-Ming Cao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Yao Xiao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Jia-Qi Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Fang-Yi Huo
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Bing Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
- Department of Oral & Maxillofacial Head Neck Oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, Hubei, China
| | - Chun Xu
- School of Dentistry, The University of Queensland, Brisbane, QLD, 4066, Australia
| | - Yi Zhao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
- Department of Prosthodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Lang Rao
- Institute of Biomedical Health Technology and Engineering, Shenzhen Bay Laboratory, Shenzhen, 518132, China.
| | - Lin-Lin Bu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China.
- Department of Oral & Maxillofacial Head Neck Oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, Hubei, China.
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Li ZZ, Zhong NN, Cao LM, Cai ZM, Xiao Y, Wang GR, Liu B, Xu C, Bu LL. Nanoparticles Targeting Lymph Nodes for Cancer Immunotherapy: Strategies and Influencing Factors. Small 2024:e2308731. [PMID: 38327169 DOI: 10.1002/smll.202308731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/07/2024] [Indexed: 02/09/2024]
Abstract
Immunotherapy has emerged as a potent strategy in cancer treatment, with many approved drugs and modalities in the development stages. Despite its promise, immunotherapy is not without its limitations, including side effects and suboptimal efficacy. Using nanoparticles (NPs) as delivery vehicles to target immunotherapy to lymph nodes (LNs) can improve the efficacy of immunotherapy drugs and reduce side effects in patients. In this context, this paper reviews the development of LN-targeted immunotherapeutic NP strategies, the mechanisms of NP transport during LN targeting, and their related biosafety risks. NP targeting of LNs involves either passive targeting, influenced by NP physical properties, or active targeting, facilitated by affinity ligands on NP surfaces, while alternative methods, such as intranodal injection and high endothelial venule (HEV) targeting, have uncertain clinical applicability and require further research and validation. LN targeting of NPs for immunotherapy can reduce side effects and increase biocompatibility, but risks such as toxicity, organ accumulation, and oxidative stress remain, although strategies such as biodegradable biomacromolecules, polyethylene glycol (PEG) coating, and impurity addition can mitigate these risks. Additionally, this work concludes with a future-oriented discussion, offering critical insights into the field.
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Affiliation(s)
- Zi-Zhan Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, #237 Luoyu Road, Wuhan, 430079, China
| | - Nian-Nian Zhong
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, #237 Luoyu Road, Wuhan, 430079, China
| | - Lei-Ming Cao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, #237 Luoyu Road, Wuhan, 430079, China
| | - Ze-Min Cai
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, #237 Luoyu Road, Wuhan, 430079, China
| | - Yao Xiao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, #237 Luoyu Road, Wuhan, 430079, China
| | - Guang-Rui Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, #237 Luoyu Road, Wuhan, 430079, China
| | - Bing Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, Department of Oral & Maxillofacial - Head Neck Oncology, School & Hospital of Stomatology, Wuhan University, #237 Luoyu Road, Wuhan, 430079, China
| | - Chun Xu
- School of Dentistry, The University of Queensland, 288 Herston Road, Brisbane, 4066, Australia
| | - Lin-Lin Bu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, Department of Oral & Maxillofacial - Head Neck Oncology, School & Hospital of Stomatology, Wuhan University, #237 Luoyu Road, Wuhan, 430079, China
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Zhou K, Li ZZ, Cai ZM, Zhong NN, Cao LM, Huo FY, Liu B, Wu QJ, Bu LL. Nanotheranostics in cancer lymph node metastasis: The long road ahead. Pharmacol Res 2023; 198:106989. [PMID: 37979662 DOI: 10.1016/j.phrs.2023.106989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/07/2023] [Accepted: 11/13/2023] [Indexed: 11/20/2023]
Abstract
Lymph node metastasis (LNM) significantly impacts the prognosis of cancer patients. Despite significant advancements in diagnostic techniques and treatment modalities, clinical challenges continue to persist in the realm of LNM. These include difficulties in early diagnosis, limited treatment efficacy, and potential side effects and injuries associated with treatment. Nanotheranostics, a field within nanotechnology, seamlessly integrates diagnostic and therapeutic functionalities. Its primary goal is to provide precise and effective disease diagnosis and treatment simultaneously. The development of nanotheranostics for LNM offers a promising solution for the stratified management of patients with LNM and promotes the advancement of personalized medicine. This review introduces the mechanisms of LNM and challenges in its diagnosis and treatment. Furthermore, it demonstrates the advantages and development potential of nanotheranostics, focuses on the challenges nanotheranostics face in its application, and provides an outlook on future trends. We consider nanotheranostics a promising strategy to improve clinical effectiveness and efficiency as well as the prognosis of cancer patients with LNM.
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Affiliation(s)
- Kan Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Zi-Zhan Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Ze-Min Cai
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Nian-Nian Zhong
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Lei-Ming Cao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Fang-Yi Huo
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Bing Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China; Department of Oral & Maxillofacial - Head Neck Oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China.
| | - Qiu-Ji Wu
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Lin-Lin Bu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China; Department of Oral & Maxillofacial - Head Neck Oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China.
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Xia LZ, Tao J, Chen YJ, Liang LL, Luo GF, Cai ZM, Wang Z. Factors Affecting the Re-Endothelialization of Endothelial Progenitor Cell. DNA Cell Biol 2021; 40:1009-1025. [PMID: 34061680 DOI: 10.1089/dna.2021.0082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The vascular endothelium, which plays an essential role in maintaining the normal shape and function of blood vessels, is a natural barrier between the circulating blood and the vascular wall tissue. The endothelial damage can cause vascular lesions, such as atherosclerosis and restenosis. After the vascular intima injury, the body starts the endothelial repair (re-endothelialization) to inhibit the neointimal hyperplasia. Endothelial progenitor cell is the precursor of endothelial cells and plays an important role in the vascular re-endothelialization. However, re-endothelialization is inevitably affected in vivo and in vitro by factors, which can be divided into two types, namely, promotion and inhibition, and act on different links of the vascular re-endothelialization. This article reviews these factors and related mechanisms.
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Affiliation(s)
- Lin-Zhen Xia
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, China
| | - Jun Tao
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, China
| | - Yan-Jun Chen
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, China
| | - Ling-Li Liang
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, China
| | - Gui-Fang Luo
- Department of Gynaecology, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Ze-Min Cai
- Pediatrics Department, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Zuo Wang
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, China
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5
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Cai ZM, Wen Z. [Research progress in the application of intralymphatic allergen immunotherapy in allergic diseases]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 33:1109-1112. [PMID: 31914307 DOI: 10.13201/j.issn.1001-1781.2019.11.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Indexed: 11/12/2022]
Abstract
SummaryAlthough subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT) have a positive effect, there are drawbacks such as long treatment time period, frequent treatment times, and risk of adverse reactions. Peripheral superficial lymph node injection of allergen immunotherapy (ILIT) as an emerging specific immunotherapy method has the advantages of high safety, less adverse reactions, short treatment time, less treatment times, less patient pain, and exact curative effect. In recent years, more and more scholars have conducted extensive research on intra-lymphatic injection of immunotherapy for allergic diseases. This paper systematically summarizes the theoretical basis, method, safety, effectiveness and possible immune mechanism of ILIT.
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Wang XL, Li CL, Yang LH, Jiang ZM, Gui YT, Cai ZM. [Clinical significance of high expression with UTX in renal cell carcinoma]. Beijing Da Xue Xue Bao Yi Xue Ban 2014; 46:926-930. [PMID: 25512285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the expression and significance of ubiquitously transcribed TPR gene on the X chromosome (UTX) in renal cell carcinoma (RCC) tissues, then to explore the relationship between UTX expression and renal cancer pathologic characteristics. METHODS In the study, 45 patients with dignosed renal cell carcinoma clinical samples were collected in Peking University Shenzhen Hospital. Total RNA and protein were extracted from the cancer tissues and adjacent normal tissues. UTX expression of cancer tissues and adjacent normal tissues was detected on both mRNA and protein levels using real time-PCR and IHC, respectively. And the relationship between UTX expression and the 45 patients' clinical characteristics was analyzed. RESULTS The mRNA level of UTX in cancer tissues(C) was 4.4 folds, higher than that of the adjacent normal tissues(N) [ 0.883 2±0.703 8 vs. 0.199 7±0.140 0, P<0.05]. The protein expression of UTX in cancer tissues was up-regulated, and the protein score of cancer tissues was 4 folds, change compared with adjacent normal tissues[12±4 vs. 3±3, P<0.05].The expression of UTX was associated with pathological grade(P=0.004)but without gender, age, tumor size and TNM stage. CONCLUSION UTX is up-regulated in RCC tissues and the expression of UTX is associated with pathological grade, illustrating that UTX may play an important role in renal cancer progression.
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Affiliation(s)
- X L Wang
- Department of Urology, Peking University Shenzhen Hospital; Key Labrotory of Male reproductive and genetic, Peking University Shenzhen Hospital, Shenzhen Guangdong 518036, China
| | - C L Li
- Department of Urology, Peking University Shenzhen Hospital; Key Labrotory of Male reproductive and genetic, Peking University Shenzhen Hospital, Shenzhen Guangdong 518036, China
| | - L H Yang
- Department of Urology, Peking University Shenzhen Hospital; Key Labrotory of Male reproductive and genetic, Peking University Shenzhen Hospital, Shenzhen Guangdong 518036, China
| | - Z M Jiang
- Department of Urology, Peking University Shenzhen Hospital; Key Labrotory of Male reproductive and genetic, Peking University Shenzhen Hospital, Shenzhen Guangdong 518036, China
| | - Y T Gui
- Department of Urology, Peking University Shenzhen Hospital; Key Labrotory of Male reproductive and genetic, Peking University Shenzhen Hospital, Shenzhen Guangdong 518036, China
| | - Z M Cai
- Department of Urology, Peking University Shenzhen Hospital; Key Labrotory of Male reproductive and genetic, Peking University Shenzhen Hospital, Shenzhen Guangdong 518036, China
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Ye YW, Jiang ZM, Li WH, Li ZS, Han YH, Sun L, Wang Y, Xie J, Liu YC, Zhao J, Tang AF, Li XX, Guan ZC, Gui YT, Cai ZM. Down-regulation of TCF21 is associated with poor survival in clear cell renal cell carcinoma. Neoplasma 2013; 59:599-605. [PMID: 22862160 DOI: 10.4149/neo_2012_076] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Transcription factor 21 (TCF21) has been identified as a candidate tumor suppressor at 6q23-q24 that is epigenetically inactivated in many types of human cancers. We recently found that TCF21 methylation level was significantly increased in clear cell renal cell carcinoma (ccRCC). The purpose of this study was to investigate the prognostic impact of TCF21 expression in ccRCC and analyze the relationship between TCF21 expression and methylation level. We used real-time PCR and immunohistochemical staining to detect the expression of TCF21, and used methylation specific-PCR (MS-PCR) to determine the methylation status of TCF21 in ccRCC samples and cell line 786-O. The results showed that TCF21 expression level in ccRCC samples was significantly lower than in normal adjacent tissue samples (NAT samples). The Kaplan-Meier survival analysis demonstrated that TCF21 was a significant prognosticator of cancer-specific survival (p=0.001). Furthermore, the DNA demethylating agent 5'-azacytidine restored part of TCF21 expression by suppressing TCF21 methylation in 786-O. The methylation level of TCF21 in ccRCC samples was much higher than in NAT samples. These results suggest that the expression of TCF21 was an independent prognostic factor for poor survival in patients with ccRCC. Aberrant methylation was an important reason for the down-regulation the expression of TCF21, and may be associated with tumorigenesis in ccRCC.
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Affiliation(s)
- Y W Ye
- guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, China
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8
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Xie C, Jiang XH, Zhang JT, Sun TT, Dong JD, Sanders AJ, Diao RY, Wang Y, Fok KL, Tsang LL, Yu MK, Zhang XH, Chung YW, Ye L, Zhao MY, Guo JH, Xiao ZJ, Lan HY, Ng CF, Lau KM, Cai ZM, Jiang WG, Chan HC. CFTR suppresses tumor progression through miR-193b targeting urokinase plasminogen activator (uPA) in prostate cancer. Oncogene 2012; 32:2282-91, 2291.e1-7. [PMID: 22797075 DOI: 10.1038/onc.2012.251] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cystic fibrosis (CF) transmembrane conductance regulator (CFTR) is expressed in the epithelial cells of a wide range of organs/tissues from which most cancers are derived. Although accumulating reports have indicated the association of cancer incidence with genetic variations in CFTR gene, the exact role of CFTR in cancer development and the possible underlying mechanism have not been elucidated. Here, we report that CFTR expression is significantly decreased in both prostate cancer cell lines and human prostate cancer tissue samples. Overexpression of CFTR in prostate cancer cell lines suppresses tumor progression (cell growth, adhesion and migration), whereas knockdown of CFTR leads to enhanced malignancies both in vitro and in vivo. In addition, we demonstrate that CFTR knockdown-enhanced cell proliferation, cell invasion and migration are significantly reversed by antibodies against either urokinase plasminogen activator (uPA) or uPA receptor (uPAR), which are known to be involved in various malignant traits of cancer development. More interestingly, overexpression of CFTR suppresses uPA by upregulating the recently described tumor suppressor microRNA-193b (miR-193b), and overexpression of pre-miR-193b significantly reverses CFTR knockdown-enhanced malignant phenotype and abrogates elevated uPA activity in prostate cancer cell line. Finally, we show that CFTR gene transfer results in significant tumor repression in prostate cancer xenografts in vivo. Taken together, the present study has demonstrated a previously undefined tumor-suppressing role of CFTR and its involvement in regulation of miR-193b in prostate cancer development.
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Affiliation(s)
- C Xie
- Epithelial Cell Biology Research Center, School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
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Qin J, Guo X, Cui GH, Zhou YC, Zhou DR, Tang AF, Yu ZD, Gui YT, Cai ZM. Cluster characterization of mouse embryonic stem cell-derived pluripotent embryoid bodies in four distinct developmental stages. Biologicals 2009; 37:235-44. [PMID: 19339198 DOI: 10.1016/j.biologicals.2009.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2008] [Revised: 03/04/2009] [Accepted: 03/04/2009] [Indexed: 10/20/2022] Open
Abstract
The formation of embryoid bodies (EBs) is the principal step in the differentiation of embryonic stem (ES) cells. In this study, the morphological characteristics and gene expression patterns of EBs related to the sequential stages of embryonic development were well defined in four distinct developmental groups over 112 days of culture: early-stage EBs groups (1-7 days of differentiation), mid-stage EBs groups (9-15 days of differentiation), maturing EBs groups (17-45 days of differentiation) and matured EBs groups (50 days of differentiation). We first determined definite histological location of apoptosis within EBs and the sequential expression of molecular markers representing stem cells (Oct4, SSEA-1, Sox-2 and AKP), germ cells (Fragilis, Dazl, c-kit, StellaR, Mvh and Stra8), ectoderm (Neurod, Nestin and Neurofilament), mesoderm (Gata-1, Flk-1 and Hbb) and endoderm (AFP and Transthyretin). Our results revealed that developing EBs possess either pluripotent stem cell or germ cell states and that three-dimensional aggregates of EBs initiate mES cell differentiation during prolonged culture in vitro. Therefore, we suggest that this EB system to some extent recapitulates the early developmental processes occurring in vivo.
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Affiliation(s)
- J Qin
- Key Laboratory of Male Reproduction & Genetics of Guangdong Province, Peking University, Shenzhen Hospital, Lianhua Road 1120, FuTian District, Shenzhen 518036, PR China
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10
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Abstract
Based on the theories of nonlinear continuum mechanics, piezoelectricity and elastic waves in solids, theoretical analysis of Bleustein-Gulyaev surface acoustic wave propagation in a prestressed layered piezoelectric structure are described. Numerical calculations are performed for the case that the layer and the substrate are identical LiNbO(3) except that they are polarized in opposite directions. It is found that an almost linear behavior of the relative change in phase velocity versus the initial stress is obtained for both surface electrically free and shorted cases. Potential applications in the design of acoustic wave devices are suggested.
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Affiliation(s)
- H Liu
- Department of Engineering Mechanics, Shanghai Jiaotong University, Shanghai 200240, PR China
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11
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Wang TY, Cai ZM, Wu ZR. [Preliminary experience of use of ultrasonic surgical aspirator for lung limited resection]. Zhonghua Wai Ke Za Zhi 1994; 32:242-3. [PMID: 7842931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The authors reported 8 cases undergone lung limited resections (11 operations) by cavitron ultrasonic surgical aspirator (CUSA). There were 3 cases (6 operations) with multiple metastases in lung, 1 case with single metastasis in lung, 1 case with peripheric lung cancer, 1 case with nodule of tuberculosis in lung, 1 case with lung abscess and 1 case with lung cyst. All the patients recovered well postoperatively. Until now 4 cases with lung metastatic tumors have living well for 3.5, 1, 0.5, and 0.3 years. Ultrasonic Aspiration is very beneficial for lung limited resection: Less blood lose; Simple surgical techniques; and to be able to resect the deep lesions in lung and multiple lung lesions, and avoid lobectomy or pneumonectomy for more preserving lung tissue.
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Affiliation(s)
- T Y Wang
- Beijing Friandship Hospital, Affiliate of Capital Institute of Medicine
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Cai ZM. [Carcinosarcoma of the lung: a report of 3 cases and a review of the literature]. Zhonghua Jie He He Hu Xi Za Zhi 1989; 12:164-6, 192. [PMID: 2680122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Three cases of lung carcinosarcoma are reported. This kind of tumour accounts for 0.1 percent in lung tumours. 53 cases in the literatures were reviewed. Authors analysed the histology, morphology, diagnosis, treatment and diagnosis. The carcinosarcoma is single or multiple symptoms of the carcinoma in the bronchi appear early, but it is difficult to diagnose it early. Final diagnosis depends on the biopsies.
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Hu XL, Wu BH, You ZQ, Chen DL, Cai ZM, Zheng YL, Yang BY, Li WF, Li BJ, Ye LJ. Preliminary analysis of the mechanism underlying the phenomenon of channel blocking. J TRADIT CHIN MED 1986; 6:289-96. [PMID: 3600023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Cai ZM. [The value of the cellular concentration method by mechanically liquified sputum in the diagnosis of primary pulmonary carcinoma]. Zhonghua Jie He He Hu Xi Xi Ji Bing Za Zhi 1984; 7:153-4, 191. [PMID: 6518927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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