1
|
Wen H, Deng G, Shi X, Liu Z, Lin A, Cheng Q, Zhang J, Luo P. Body mass index, weight change, and cancer prognosis: a meta-analysis and systematic review of 73 cohort studies. ESMO Open 2024; 9:102241. [PMID: 38442453 PMCID: PMC10925937 DOI: 10.1016/j.esmoop.2024.102241] [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] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/19/2023] [Accepted: 01/09/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Identifying the association between body mass index (BMI) or weight change and cancer prognosis is essential for the development of effective cancer treatments. We aimed to assess the strength and validity of the evidence of the association between BMI or weight change and cancer prognosis by a systematic evaluation and meta-analysis of relevant cohort studies. METHODS We systematically searched the PubMed, Web of Science, EconLit, Embase, Food Sciences and Technology Abstracts, PsycINFO, and Cochrane databases for literature published up to July 2023. Inclusion criteria were cohort studies with BMI or weight change as an exposure factor, cancer as a diagnostic outcome, and data type as an unadjusted hazard ratio (HR) or headcount ratio. Random- or fixed-effects models were used to calculate the pooled HR along with the 95% confidence interval (CI). RESULTS Seventy-three cohort studies were included in the meta-analysis. Compared with normal weight, overweight or obesity was a risk factor for overall survival (OS) in patients with breast cancer (HR 1.37, 95% CI 1.22-1.53; P < 0.0001), while obesity was a protective factor for OS in patients with gastrointestinal tumors (HR 0.67, 95% CI 0.56-0.80; P < 0.0001) and lung cancer (HR 0.67, 95% CI 0.48-0.92; P = 0.01) compared with patients without obesity. Compared with normal weight, underweight was a risk factor for OS in patients with breast cancer (HR 1.15, 95% CI 0.98-1.35; P = 0.08), gastrointestinal tumors (HR 1.54, 95% CI 1.32-1.80; P < 0.0001), and lung cancer (HR 1.28, 95% CI 1.22-1.35; P < 0.0001). Compared with nonweight change, weight loss was a risk factor for OS in patients with gastrointestinal cancer. CONCLUSIONS Based on the results of the meta-analysis, we concluded that BMI, weight change, and tumor prognosis were significantly correlated. These findings may provide a more reliable argument for the development of more effective oncology treatment protocols.
Collapse
Affiliation(s)
- H Wen
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong
| | - G Deng
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong; The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong
| | - X Shi
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong
| | - Z Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing; Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - A Lin
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong.
| | - Q Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, China.
| | - J Zhang
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong.
| | - P Luo
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong.
| |
Collapse
|
2
|
Hirata H, Hinoda Y, Shahryari V, Deng G, Tanaka Y, Tabatabai ZL, Dahiya R. Editorial Expression of Concern: Genistein downregulates onco-miR-1260b and upregulates sFRP1 and Smad4 via demethylation and histone modification in prostate cancer cells. Br J Cancer 2023; 129:735. [PMID: 37507546 PMCID: PMC10421853 DOI: 10.1038/s41416-023-02365-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023] Open
Affiliation(s)
- H Hirata
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - Y Hinoda
- Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - V Shahryari
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - G Deng
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - Y Tanaka
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - Z L Tabatabai
- Department of Pathology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - R Dahiya
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA.
| |
Collapse
|
3
|
Li S, Du M, Deng J, Deng G, Li J, Song Z, Han H. Gene editing of Duchenne muscular dystrophy using biomineralization-based spCas9 variant nanoparticles. Acta Biomater 2022; 154:597-607. [PMID: 36243370 DOI: 10.1016/j.actbio.2022.10.015] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 09/23/2022] [Accepted: 10/06/2022] [Indexed: 02/08/2023]
Abstract
The CRISPR/Cas9 mediated genome editing have provided a promising strategy to correct multiple mutations of Duchenne muscular dystrophy (DMD). However, the delivery of CRISPR/Cas9 system into mammalian cell for DMD gene editing mainly relies on adeno associated virus (AAV)-mediated transport. Meanwhile, the protospacer adjacent motif (PAM) requirement of wild-typed Cas9 protein causing the target sites for exon splice acceptor site are restricted to limited regions. Here, we developed a biomineralized PAMLess Cas9 (SpRY) variant nanoparticles (Bm-SpRY NPs) for DMD gene editing in vitro and in vivo. This method described a facile synthesis of biomineralized NPs with high SpRY pDNA encapsulation efficiency. In vitro results show that the Bm-SpRY NPs have the obvious advantages of well biocompatibility and protecting SpRY pDNA from enzyme degradation and efficient delivery under high serum condition. Cell studies demonstrated that Bm-SpRY NPs enable rapid cellular uptake, endo-lysosomes escape and nucleus transport. Meanwhiles, the DMD gene editing via Bm-SpRY NPs pathway is transient process without genomic integration. We evaluated multiple target regions with different PAMs for the DMD exon 51 splice acceptor site through Bm-SpRY NPs method and found that the target region with TAG PAM has the highest editing efficiency and significant preferential mutation. In vivo results show that intramuscular injection of Bm-SpRY NPs enable DMD gene mutation in muscle tissue without tissue damage. This study may extend the advanced application of CRISPR system for DMD therapy. STATEMENT OF SIGNIFICANCE: The gene editing technology of CRISPR/Cas9 provides an effective treatment strategy for the Duchenne muscular dystrophy (DMD) therapy. However, the delivery of CRISPR system in mammalian cell mainly relies on viral mediated transport and the NGG or NAG requirement of wild-typed Cas9 protein limits the target region in DMD gene. Here, the present study provides a biomineralized PAM Less Cas9 (SpRY) variant nanoparticles (Bm-SpRY NPs) for DMD gene editing in vitro and in vivo. This study may extend the application of CRISPR system for DMD gene therapy.
Collapse
Affiliation(s)
- Shuojun Li
- State Key Laboratory of Agriculture Microbiology, College of life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Moqing Du
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiamin Deng
- State Key Laboratory of Agriculture Microbiology, College of life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Guiyun Deng
- State Key Laboratory of Agriculture Microbiology, College of life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiaying Li
- State Key Laboratory of Agriculture Microbiology, College of life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhiyong Song
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Heyou Han
- State Key Laboratory of Agriculture Microbiology, College of life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| |
Collapse
|
4
|
Li S, Li J, Du M, Deng G, Song Z, Han H. Efficient Gene Silencing in Intact Plant Cells Using siRNA Delivered By Functional Graphene Oxide Nanoparticles. Angew Chem Int Ed Engl 2022; 61:e202210014. [DOI: 10.1002/anie.202210014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Shuojun Li
- State Key Laboratory of Agricultural Microbiology College of Life Science and Technology Huazhong Agricultural University Wuhan 430070 China
| | - Jiaying Li
- State Key Laboratory of Agricultural Microbiology College of Life Science and Technology Huazhong Agricultural University Wuhan 430070 China
| | - Moqing Du
- State Key Laboratory of Agricultural Microbiology College of Science Huazhong Agricultural University Wuhan 430070 China
| | - Guiyun Deng
- State Key Laboratory of Agricultural Microbiology College of Life Science and Technology Huazhong Agricultural University Wuhan 430070 China
| | - Zhiyong Song
- State Key Laboratory of Agricultural Microbiology College of Science Huazhong Agricultural University Wuhan 430070 China
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology College of Life Science and Technology Huazhong Agricultural University Wuhan 430070 China
| |
Collapse
|
5
|
Deng G, Li Z. 1002P Compared with the difference in efficacy between EGFR-TKIs alone and EGFR-TKIs combined with craniocerebral radiotherapy in EGFR mutant lung adenocarcinoma patients with brain metastasis. A propensity-score matched analysis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
6
|
Li S, Li J, Du M, Deng G, Song Z, Han H. Efficient Gene Silencing in Intact Plant Cells Using siRNA Delivered By Functional Graphene Oxide Nanoparticles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shuojun Li
- Huazhong Agriculture University College of Life Sciences and Technology College of Life Science and Technology CHINA
| | - Jiaying Li
- Huazhong Agriculture University College of Life Sciences and Technology College of Life Science and Technology CHINA
| | - Moqing Du
- Huazhong Agriculture University College of Science College of Science CHINA
| | - Guiyun Deng
- Huazhong Agriculture University College of Life Sciences and Technology College of Life Science and Technology CHINA
| | - Zhiyong Song
- HZAU: Huazhong Agriculture University College of Science CHINA
| | - Heyou Han
- Huazhong Agriculture University: Huazhong Agricultural University College of Science No.1,Shizishan Street, Hongshan District, Wuhan Wuhan CHINA
| |
Collapse
|
7
|
Qiu P, Lin X, Deng G. [Talin1 is highly expressed in the fallopian tube and chorionic villi to promote trophoblast invasion in tubal pregnancy]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:610-617. [PMID: 35527499 DOI: 10.12122/j.issn.1673-4254.2022.04.19] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the expression of Talin1 in the fallopian tube and chorionic villi in patients with tubal pregnancy and its role in regulating invasion and migration of trophoblasts. METHODS Immunohistochemistry and Western blotting were used to detect the localization and expression level of Talin1 in the fallopian tube and chorionic villi in patients with tubal pregnancy and in women with normal pregnancy. In the cell experiment, HTR-8/SVneo cells was transfected with Talin1 siRNA and the changes in cell invasion and migration were assessed using scratch assay and Transwell assay. The expressions of MMP-2, MMP-9, N-cadherin and Snail in the transfected cells were detected by qRT-PCR and Western blotting. RESULTS Positive expression of Talin1 was detected in both normal fallopian tube tissues and tissues from women tubal pregnancy, and its expression was localized mainly in the cytoplasm of cilia cells. The expression level of Talin1 was significantly higher in both the fallopian tube and chorionic villi in women with tubal pregnancy than in normal fallopian tube and chorionic villi samples (P < 0.01). In HTR-8/SVneo cells, transfection with Talin1 siRNA significantly inhibited cell invasion (P < 0.01) and migration (P < 0.05), down-regulated the expression of N-cadherin, MMP-2 and Snail (P < 0.05), and up-regulated the expression of MMP-9 in the cells (P < 0.05). CONCLUSION The expression of Talin1 in the fallopian tube and chorionic villi is significantly increased in women with tubal pregnancy, suggesting the association of Talin1-regulated trophoblast cell invasion with the occurrence of tubal pregnancy.
Collapse
Affiliation(s)
- P Qiu
- Department of Gynecology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - X Lin
- First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - G Deng
- Department of Gynecology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| |
Collapse
|
8
|
Deng G, Wu Y, Song Z, Li S, Du M, Deng J, Xu Q, Deng L, Bahlol HS, Han H. Tea Polyphenol Liposomes Overcome Gastric Mucus to Treat Helicobacter Pylori Infection and Enhance the Intestinal Microenvironment. ACS Appl Mater Interfaces 2022; 14:13001-13012. [PMID: 35266695 DOI: 10.1021/acsami.1c23342] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Infection with Helicobacter pylori (Hp) is one of the leading causes of stomach cancer. The ability to treat Hp infection is hampered by a lack of stomach gastric acid environment. This work introduces a nanoliposome that can rapidly adjust the gastric acid environment to ensure a drug's optimal efficacy. We introduce CaCO3@Fe-TP@EggPC nanoliposomes (CTE NLs) that are composed of Fe3+ and tea polyphenols (TPs) forming complexes on the surface of internal CaCO3 and then with lecithin producing a phospholipid bilayer on the polyphenols' outer surface. Through the action of iron-TP chelate, the phospholipid layer can fuse with the bacterial membrane to eliminate Hp. Furthermore, CaCO3 can promptly consume the excessive gastric acid, ensuring an ideal operating environment for the chelate. TPs, on the other hand, can improve the inflammation and gut microbes in the body. The experimental results show that CTE NLs can quickly consume protons in the stomach and reduce the bacterial burden by 1.2 orders of magnitude while reducing the inflammatory factors in the body. The biosafety evaluation revealed that nanoliposomes have good biocompatibility and provide a new strategy for treating Hp infection.
Collapse
Affiliation(s)
- Guiyun Deng
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Yang Wu
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Zhiyong Song
- State Key Laboratory of Agriculture Microbiology, College of Science Huazhong Agricultural University, Wuhan 430070, China
| | - Shuojun Li
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Moqing Du
- State Key Laboratory of Agriculture Microbiology, College of Science Huazhong Agricultural University, Wuhan 430070, China
| | - Jiamin Deng
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Quan Xu
- State Key Laboratory of Agriculture Microbiology, College of Science Huazhong Agricultural University, Wuhan 430070, China
| | - Liu Deng
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Hagar Shendy Bahlol
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
- Department of Biochemistry, Faculty of Agriculture, Benha University, Moshtohor, Toukh 13736, Egypt
| | - Heyou Han
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
- State Key Laboratory of Agriculture Microbiology, College of Science Huazhong Agricultural University, Wuhan 430070, China
| |
Collapse
|
9
|
Wang J, Jarrold B, Zhao W, Deng G, Moulton L, Laughlin T, Hakozaki T. The combination of sucrose dilaurate and sucrose laurate suppresses HMGB1: an enhancer of melanocyte dendricity and melanosome transfer to keratinocytes. J Eur Acad Dermatol Venereol 2022; 36 Suppl 3:3-11. [PMID: 35014730 DOI: 10.1111/jdv.17846] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/22/2021] [Accepted: 11/26/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Hyperpigmented spots are common issues in all ethnicities, involving multiple intrinsic and extrinsic factors such as UVB exposure, hormone balance, inflammatory status and ageing. OBJECTIVES To determine (i) melanocyte dendricity in multiple facial spot types, (ii) impact of High Mobility Group Box 1 (HMGB1), and the combination of sucrose dilaurate and sucrose laurate (SDL) on melanogenesis and melanocyte dendricity, and (iii) SDL effect on facial spots in a human use test. METHODS Facial spot and adjacent non-spot skin biopsies were collected from Chinese women (age 20-70). Histological assessment of melanocyte dendricity was performed for 3 spot types (solar lentigo, melasma and postinflammatory hyperpigmentation) by immunofluorescent staining for c-kit/MITF. Keratinocyte, melanocyte and melanocyte-keratinocyte co-culture models were used to assess HMGB1 release by UVB radiation, the effects of HMGB1 and SDL on melanin production, melanocyte dendricity and melanosome transfer. The effect of an SDL-containing moisturizer on appearance of facial hyperpigmented spots was assessed against a vehicle control in an 8-week human use test. RESULTS Melanocytes in spot areas are more dendritic than melanocytes in adjacent non-spot skin across three investigated spot types. In cell culture models, a moderate UVB-radiation exposure caused release of HMGB1 from keratinocytes. HMGB1 did not alter melanin production in melanocytes, but enhanced melanocyte dendricity and melanosome transfer. SDL reduced HMGB1 release from keratinocytes, inhibited melanin production, reversibly suppressed melanocyte dendricity and reduced melanosome transfer. In the human use test, SDL-containing moisturizer reduced appearance of spots versus vehicle. CONCLUSION Increased melanocyte dendricity was observed in multiple types of facial spots. Addition of HMGB1 protein increased melanocyte dendricity and melanosome transfer in cell cultures, implicating potential involvement in spot formation. SDL suppressed melanin production, melanocyte dendricity and melanosome transfer in vitro and reduced appearance of spots in the use test, suggesting SDL is an effective solution to address hyperpigmented spot concerns.
Collapse
Affiliation(s)
- J Wang
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - B Jarrold
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - W Zhao
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - G Deng
- P&G Singapore Innovation Center, Singapore City, Singapore
| | - L Moulton
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - T Laughlin
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - T Hakozaki
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| |
Collapse
|
10
|
Liu Y, Deng G. Automating inventorying of blood stations: A system based on ultrahigh-frequency radio-frequency identification (UHF RFID) technology. Transfus Clin Biol 2021; 29:134-137. [PMID: 34929415 DOI: 10.1016/j.tracli.2021.12.003] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/14/2021] [Indexed: 10/19/2022]
Abstract
Inventorying blood products is an essential process in blood station management. Traditional methods need to integrate barcodes with refrigerators, which suffer from low time efficiency, high error rate and high labour cost. Several methods have been proposed to automate this process in blood stations. However, none of them is ideal enough. In this paper, we analyse the difficulties of automation in blood inventory, and propose an automated blood inventory system based on UHF RFID technology. Comparisons over our method with manual inventory and handheld RFID inventory are conducted. The result shows that our method is nearly 10 times higher than manual inventory in time efficiency while increases the accuracy to 100%.
Collapse
Affiliation(s)
- Y Liu
- The Ningbo Central Blood Station, Ningbo, China
| | - G Deng
- The Ningbo Central Blood Station, Ningbo, China.
| |
Collapse
|
11
|
Deng G. 1241P Effects of different brain radiotherapy strategies based on lung-molGPA stratification on the prognosis of patients with brain metastases of EGFR-mutant lung adenocarcinoma. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
12
|
Laughlin T, Tan Y, Jarrold B, Chen J, Li L, Fang B, Zhao W, Tamura M, Matsubara A, Deng G, Wang X, Hakozaki T. Autophagy activators stimulate the removal of advanced glycation end products in human keratinocytes. J Eur Acad Dermatol Venereol 2021; 34 Suppl 3:12-18. [PMID: 32557807 DOI: 10.1111/jdv.16453] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/04/2020] [Accepted: 03/27/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND The accumulation of advanced glycation end products (AGEs) can impact cellular homoeostasis and protein structure, thus is implicated in numerous skin conditions including yellow, dull appearance. AGE formation is irreversible; thus, understanding of the recycling process of AGEs in the skin is critical for addressing skin appearance conditions. OBJECTIVE To determine whether (i) accumulation of AGEs occurs in dull appearance group among young population (age 20-29) (ii) in vitro autophagy stimulation results in reduction of AGEs in keratinocytes. METHODS Facial cheek biopsies were collected from Chinese women (age 20-50) exhibiting either dull or non-dull appearing skin. Histological assessment of glycation was performed for representative subjects among the 20-29 years sub-group by immunofluorescence staining of AGEs. LC-MS methods and keratinocyte cell culture were used to assess impact of autophagy modulators and skin care materials on carboxymethyl lysine (CML) amount, a representative AGE. RESULTS Notable amounts of AGEs were observed in the epidermal samples among young females. Interestingly, the amount of AGEs was significantly higher among the dull skin appearance group. Treatment of keratinocytes with glyceraldehyde (GLA) enhanced CML in the cells, and postglycation treatment with autophagy activators reduced CML. Two skin care materials, Nymphaea alba flower extract (a.k.a. white water lily extract) and sucrose dilaurate, were identified based from in vitro autophagy activation and found to reduce CML in keratinocytes. CONCLUSION We found AGEs accumulate in the facial epidermis even among young people, correlating to a yellow and dull appearance. We also demonstrated in vitro activation of autophagy can reduce AGEs in keratinocytes, and autophagy activating skin care materials, N. alba flower extract and sucrose dilaurate, also reduce AGEs in the keratinocyte in vitro model. These data suggest epidermal AGEs contribute to the dull skin appearance, and autophagy activators may provide an effective solution to improve dull appearance by removing and recycling the accumulated glycation in the skin.
Collapse
Affiliation(s)
- T Laughlin
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - Y Tan
- Shanghai Skin Disease Hospital, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China.,NMPA Key Laboratory for Monitoring and Evaluation of Cosmetics, Shanghai, China
| | - B Jarrold
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - J Chen
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - L Li
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - B Fang
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - W Zhao
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - M Tamura
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| | - A Matsubara
- Procter & Gamble International Operations, Singapore Innovation Center, Singapore, Singapore
| | - G Deng
- Procter & Gamble International Operations, Singapore Innovation Center, Singapore, Singapore
| | - X Wang
- Shanghai Skin Disease Hospital, Shanghai, China
| | - T Hakozaki
- The Procter & Gamble Company, Mason Business Center, Mason, OH, USA
| |
Collapse
|
13
|
Wu Y, Song Z, Deng G, Jiang K, Wang H, Zhang X, Han H. Gastric Acid Powered Nanomotors Release Antibiotics for In Vivo Treatment of Helicobacter pylori Infection. Small 2021; 17:e2006877. [PMID: 33619851 DOI: 10.1002/smll.202006877] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/04/2021] [Indexed: 05/18/2023]
Abstract
Helicobacter pylori (H. pylori) infection has ≈75% probability of causing gastric cancer, so it is considered to be the strongest single risk factor for gastric malignancies. However, the harsh gastric acid environment has created obstacles to medical treatment. This work reports a nanomotor with a bottle-shaped container that can be loaded with small molecules of clarithromycin, nano calcium peroxide (CaO2 ), and Pt nanoparticles (Pt NPs) by ultrasound. Nanomotors can quickly consume gastric acid through the chemical reaction of CaO2 to temporarily neutralize gastric acid. The product hydrogen peroxide (H2 O2 ) is catalytically decomposed into a large amount of oxygen (O2 ) by Pt NPs. The local concentration gradient of O2 bubbles causes it to be expelled from the nanobottles through a narrow opening, and then push the nanobottles forward to provide maximum release and prodrug efficacy. Experiments in animal models show that 15 mg nanomotors can safely and quickly neutralize gastric acid in the stomach and simultaneously release prodrugs to achieve good therapeutic effects without causing acute toxicity. H. pylori burden in mice was 2.6 orders of magnitude lower than that in the control group. The stomach returns to normal pH within 1 d after administration.
Collapse
Affiliation(s)
- Yang Wu
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhiyong Song
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Guiyun Deng
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Kai Jiang
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Huajuan Wang
- State Key Laboratory of Agriculture Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Heyou Han
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
- State Key Laboratory of Agriculture Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| |
Collapse
|
14
|
Wu Y, Deng G, Jiang K, Wang H, Song Z, Han H. Photothermally triggered nitric oxide nanogenerator targeting type IV pili for precise therapy of bacterial infections. Biomaterials 2020; 268:120588. [PMID: 33307370 DOI: 10.1016/j.biomaterials.2020.120588] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/27/2020] [Accepted: 11/27/2020] [Indexed: 12/24/2022]
Abstract
Nitric oxide (NO) is an important biological messenger involved in the treatment of bacterial infections, but its controlled and targeted release in bacterial infections remains a major challenge. Herein, an intelligent NO nanogenerator triggered by near-infrared (NIR) light is constructed for targeted treatment of P. aeruginosa bacterial infection. Since maleimide can recognize and attach to the pilus of T4P of P. aeruginosa, we adopt this strategy to achieve the accurate release of therapeutic drugs at the infection site, i.e., after maleimide targets Gram-negative bacteria, the SNP@MOF@Au-Mal nanogenerator will release NO and generate ROS in situ from the inorganic photosensitizer gold nanoparticles under NIR irradiation to achieve synergistic antibacterial effect. In vivo experiments proved that the bacterial burden on the wound was reduced by 97.7%. Additionally, the nanogenerator was shown to promote the secretion of growth factors, which play a key role in regulating inflammation and inducing angiogenesis. This strategy has the advantage of generating a high concentration of NO in situ to promote the transfer of more NO and its derivatives (N2O3, ONOO-) to bacteria, thereby significantly improving the antibacterial effect. The multifunctional antibacterial platform has been demonstrated as a good carrier for gas therapy because of its simple and efficient gas release performance, indicating its great potential for the treatment of drug-resistant bacterial infections.
Collapse
Affiliation(s)
- Yang Wu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Guiyun Deng
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Kai Jiang
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Huajuan Wang
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhiyong Song
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China; State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| |
Collapse
|
15
|
Zhang P, Dai P, Deng G, Luo L, Huang Q, Cai L. Dosimetric Analysis of DVO and PO Algorithm in Pediatric Craniospinal Irradiation With Intensity-Modulated Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
16
|
Peng B, He SC, Zhu HD, Fang W, Du RJ, Wei TF, Guo JH, Deng G, Zhu GY, Chen L, Teng GJ. [Analysis of the effect of percutaneous vertebroplasty combined with (125)I seed implantation in the treatment of spinal metastatic epidural spinal cord compression]. Zhonghua Yi Xue Za Zhi 2020; 100:2940-2946. [PMID: 32993255 DOI: 10.3760/cma.j.cn112137-20200316-00780] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical efficacy of percutaneous vertebroplasty (PVP) combined with iodine-125 ((125)I) seed brachytherapy in the treatment of spinal metastatic epidural spinal cord compression (MESCC) and toassess the changes inthe grade of epidural spinal cord compression (ESCC) by magnetic resonance imaging (MRI). Methods: A total of 37 MESCC patients treated with PVP combined with (125)I seed brachytherapy in the interventional and vascular surgery department of Zhongda Hospital affiliated to Southeast University from January 2014 to June 2019 were retrospectively analyzed, including 23 cases of bilateral lower limbs paralysis. Total diseased vertebrae are 39 segments. Visual analogue scale (VAS) and paralysis of lower extremities were evaluated regularly before and after treatment, and VAS values at different follow-up time points were compared. At the same time, MRI was used to evaluate the changes of ESCC grade in the spinal canal and calculate the local lesion efficiency after operation. The postoperative local lesion efficiency at different follow-up times was compared. Results: PVP combined with (125)I seed implantation in all diseased vertebral bodies was successful. The average injection volume of polymethylmethacrylate (PMMA) was (3.2±1.3) ml/segment, the average number of (125)I seed implanted was (25.0±8.6) seeds/segment and the average radiation dose was (15.0±5.1) mCi/segment. The VAS before operation was 8.5, and postoperative VAS were respectively 3.6±1.3, 3.8±1.5, 3.4±1.4, 5.5±1.0, 5.9±1.4 at 5 days, 1 month, 3 months, 6 months, and 1 year after operation. The differences between all follow-up time points and preoperative VAS values were statistically significant (all P<0.001). Compared with 5 days, 1 month and 3 months after operation, VAS increased significantly at 6 months and 1 year after operation, and the difference was statistically significant (all P<0.001); there was no significant difference between the VAS value at 6 months after operation and 1 year after operation (P=0.405). At a follow-up of 3 months, 22 of 23 patients with paralysis of bilateral lower limbs regained the functions of autonomous walking and voiding; the effective rates of MESCC local lesions evaluated by MRI at 1 month, 3 months, 6 months, and>1 year were 89.7%, 91.9%, 90.6%, and 94.7%, respectively, and there was no statistically significant differences among those follow-up time points (all P>0.05). Conclusions: PVP combined with (125)I seed brachytherapy in the treatment of MESCC has significant improvement in immediate pain relief and spinal cord function. After combined treatment, MRI showed that the tumors around the spinal cord regressed dramatically, which could considerably reduce the MESCC grade and remain stable for a long time.
Collapse
Affiliation(s)
- B Peng
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - S C He
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - H D Zhu
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - W Fang
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - R J Du
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - T F Wei
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - J H Guo
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - G Deng
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - G Y Zhu
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - L Chen
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - G J Teng
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| |
Collapse
|
17
|
Ji C, Deng G, Guevara-Oquendo VH, Zhang X, Yan X, Zhang H, Yu P. Infrared attenuated total reflection spectroscopic analysis and quantitative detection of forage spectral features in ruminant systems. Spectrochim Acta A Mol Biomol Spectrosc 2020; 228:117630. [PMID: 31761542 DOI: 10.1016/j.saa.2019.117630] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 07/11/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
This study aimed to (1) access protein molecular structure profile and metabolic characteristics of model forages [Foreign sourced-origin (coded as: "FSO", n = 7 vs. Chinese sourced-origin alfalfa hay "CSO", n = 5] in ruminant systems; (2) Quantify the relationship between forage protein molecular structures and protein utilization and availability. Advanced non-invasive vibrational molecular spectroscopic technique (ATR-FTIR: Attenuated Total Reflection Fourier Transform Infrared spectroscopy) with chemometrics was applied to reveal forage protein molecular structure. Both univariate and multivariate molecular spectral analyses were applied to study molecular structure features in model forages. The molecular structure study provided the detailed protein structure profiles of Amide I and Amide II areas and height, total Amide I and II area ratios, Amide I to II height ratio as well as Amide I to II area ratio using ATR-FTIR spectroscopy. The results showed FSO and CSO had similar (P > 0.05) protein rumen degradation kinetics. However, FSO had superior quality than CSO in intestinal (IDP) and total digestible protein (TDP) and truly absorbed nutrient supply (P < 0.05). As intestinal digestion of protein, FSO was higher (P < 0.05) in protein digestion in terms of: intestinal digestibility of rumen undegraded protein (dIDP: 47.5 vs. 38.3 %RUP); Intestinal digestible protein (IDP: 17.6 vs. 13.7 %CP). As truly absorbed nutrient supply, FSO contained higher (P < 0.05) truly absorbed rumen synthesized microbial protein, absorbable rumen undegradable feed protein in the small intestine, total truly digested protein in the small intestine, metabolizable protein and Feed Milk Value (FMVDVE: 1.2 vs. 1.1 g/kg DM). The molecular structure-nutrition interactive relationship study showed that protein molecular structure profiles were highly associated to protein rumen degradation kinetics, significantly correlated to protein subfractions, protein intestinal digestion, and truly absorbed nutrient supply in ruminant systems.
Collapse
Affiliation(s)
- C Ji
- College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, 22 Jinjin Road, Tianjin 300384, China; Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - G Deng
- College of Life Science and Engineering, Foshan University, Guangdong, China; Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - V H Guevara-Oquendo
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - X Zhang
- College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, 22 Jinjin Road, Tianjin 300384, China.
| | - X Yan
- The Branch Academy of Animal Science, Jilin Academy of Agricultural Sciences, Gongzhuling, Jilin 136100, China
| | - H Zhang
- College of Life Science and Engineering, Foshan University, Guangdong, China
| | - P Yu
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada.
| |
Collapse
|
18
|
Abstract
Regulatory T cells (Tregs) are specialized in immune suppression and play a dominant role in peripheral immune tolerance. Treg cell lineage development and function maintenance is determined by the forkhead box protein 3 (FoxP3) transcriptional factor, whose activity is fine‐tuned by its post‐translational modifications (PTMs) and interaction partners. In this review, we summarize current studies in the crystal structures, the PTMs and interaction partners of FoxP3 protein, and discuss how these insights may provide a roadmap for new approaches to modulate Treg suppression, and new therapies to enhance immune tolerance in autoimmune diseases.
Collapse
Affiliation(s)
- G Deng
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - X Song
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
| | - M I Greene
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| |
Collapse
|
19
|
Quillinan N, Dingman AL, Deng G, Tatum S, Orfila JE, Clevenger AC, Klawitter J, Traystman RJ, Herson PS. Single dose of 17β-estradiol provides transient neuroprotection in female juvenile mice after cardiac-arrest and cardiopulmonary resuscitation. Neurochem Int 2018; 127:80-86. [PMID: 30471325 DOI: 10.1016/j.neuint.2018.11.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/15/2018] [Accepted: 11/15/2018] [Indexed: 01/14/2023]
Abstract
Each year there are approximately 7000 out of hospital cardiac arrests in the pediatric population, with 30% resuscitation rate and a 6-10% rate of survival to hospital discharge. Survivors of cardiac arrest exhibit learning and memory deficits that are devastating during the school years. Delayed neuronal cell death occurs in the hippocampus following cardiac arrest and likely contributes to memory impairments. Circulating endogenous estrogen in young adult females has been shown to provide protection against ischemic cell death, as does chronic exogenous administration of 17β-estradiol (E2). Chronic estrogen benefit can have undesirable feminizing effects, particularly in pre-adolescents. Here, we tested if a single-dose of E2 is neuroprotective in our pediatric cardiac arrest mouse model performed in juvenile mice. We subjected P21P25 C57Blk6 male and female mice to 8 min of cardiac arrest followed by cardiopulmonary resuscitation (CA/CPR). This developmental stage preceded the hormonal onset and serum estradiol and testosterone levels were not different in males and females. A single dose of E2 (100μg/kg) or vehicle was administered 30 min after resuscitation. Neuronal cell death measured 3 days after CA/CPR showed reduced hippocampal cell death in E2-treated females, but not males. Benefit of E2 in females was blocked by the P38 MAPK inhibitor, SB203580. Hippocampal-dependent memory function was equally impaired in E2-and vehicle-treated females measured in the contextual fear conditioning task at 7 days. Our findings demonstrate female-specific transient neuroprotection with E2 that does not provide sustained functional benefit.
Collapse
Affiliation(s)
- N Quillinan
- Department of Anesthesiology, University of Colorado, Anschutz Medical Campus, USA
| | - A L Dingman
- Department of Pediatrics, Division of Child Neurology, Intensive Care Unit, University of Colorado, Anschutz Medical Campus, USA
| | - G Deng
- Department of Pharmacology, University of Colorado, Anschutz Medical Campus, USA
| | - S Tatum
- Department of Anesthesiology, University of Colorado, Anschutz Medical Campus, USA
| | - J E Orfila
- Department of Anesthesiology, University of Colorado, Anschutz Medical Campus, USA
| | - A C Clevenger
- Department of Pediatrics, Intensive Care Unit, University of Colorado, Anschutz Medical Campus, USA
| | - J Klawitter
- Department of Anesthesiology, University of Colorado, Anschutz Medical Campus, USA
| | - R J Traystman
- Department of Anesthesiology, University of Colorado, Anschutz Medical Campus, USA
| | - P S Herson
- Department of Anesthesiology, University of Colorado, Anschutz Medical Campus, USA; Department of Pharmacology, University of Colorado, Anschutz Medical Campus, USA.
| |
Collapse
|
20
|
Sun FH, He SC, Zhu HD, Fang W, Du RJ, Li SS, Guo JH, Deng G, Qin YL, Zhu GY, Teng GJ. [Cement augmentation for vertebral osteolytic metastatic lesions: an evaluation on postoperative CT]. Zhonghua Yi Xue Za Zhi 2018; 98:2661-2665. [PMID: 30220155 DOI: 10.3760/cma.j.issn.0376-2491.2018.33.010] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the effectiveness of cement augmentation on the osteolytic lesion in patients with vertebral metastasis. Methods: A total of consecutive 132 patients with 268 vertebral metastatic lesions treated with PVP from January 2008 to December 2016 in Zhongda Hospital were enrolled in this study. Retrospective analysis of preoperative, postoperative 3 days, 3 months, 6 months, 12 months and ≥ 18 months imaging data on CT, the local control and progression of the tumor were evaluated by MDA response criteria. The local control rates were compared between the groups with the different rate of cement filling by Chi2-test. Results: Vertebroplasty procedures were performed successfully in all 268 vertebrae under DSA guidance, and the mean volume of PMMA injected in each vertebra was 0.7-8.5(3.9±1.5)ml.The rate of local control at 3 months, 6 months, 12 months and ≥18 months after PVP was respectively 98.9%, 95.1%, 91.8%, and 85.2%, the difference was statistically significant(all P<0.05). The local control rate showed a statistically significant relationship to the groups with the rate of cement filling at 6 months, 12 months and ≥18 months after PVP, but there was no statistical difference at postoperative 3 months. The rate of local control was higher in 68 patients with lung or gastrointestinal cancer than in 17 patients with liver or kidney cancer at 3 months, 6 months and 12 months, the difference was statistically significant (P<0.05). Conclusion: Cement augmentation has a local anti-tumor effect on vertebral osteolytic metastatic lesion, and the anti-tumor effect will decrease as the follow-up time extended.
Collapse
Affiliation(s)
- F H Sun
- Department of Radiology, the Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Hirata H, Hinoda Y, Shahryari V, Deng G, Tanaka Y, Tabatabai ZL, Dahiya R. Correction: Genistein downregulates onco-miR-1260b and upregulates sFRP1 and Smad4 via demethylation and histone modification in prostate cancer cells. Br J Cancer 2018; 119:388. [PMID: 29930252 PMCID: PMC6068093 DOI: 10.1038/s41416-018-0146-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- H Hirata
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - Y Hinoda
- Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - V Shahryari
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - G Deng
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - Y Tanaka
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - Z L Tabatabai
- Department of Pathology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - R Dahiya
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA.
| |
Collapse
|
22
|
Zhang S, Zhang Y, Qu J, Che X, Fan Y, Hou K, Guo T, Deng G, Song N, Li C, Wan X, Qu X, Liu Y. Exosomes promote cetuximab resistance via the PTEN/Akt pathway in colon cancer cells. ACTA ACUST UNITED AC 2017; 51:e6472. [PMID: 29160412 PMCID: PMC5685060 DOI: 10.1590/1414-431x20176472] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 09/05/2017] [Indexed: 12/11/2022]
Abstract
Cetuximab is widely used in patients with metastatic colon cancer expressing wildtype KRAS. However, acquired drug resistance limits its clinical efficacy. Exosomes are nanosized vesicles secreted by various cell types. Tumor cell-derived exosomes participate in many biological processes, including tumor invasion, metastasis, and drug resistance. In this study, exosomes derived from cetuximab-resistant RKO colon cancer cells induced cetuximab resistance in cetuximab-sensitive Caco-2 cells. Meanwhile, exosomes from RKO and Caco-2 cells showed different levels of phosphatase and tensin homolog (PTEN) and phosphor-Akt. Furthermore, reduced PTEN and increased phosphorylated Akt levels were found in Caco-2 cells after exposure to RKO cell-derived exosomes. Moreover, an Akt inhibitor prevented RKO cell-derived exosome-induced drug resistance in Caco-2 cells. These findings provide novel evidence that exosomes derived from cetuximab-resistant cells could induce cetuximab resistance in cetuximab-sensitive cells, by downregulating PTEN and increasing phosphorylated Akt levels.
Collapse
Affiliation(s)
- S Zhang
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Y Zhang
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - J Qu
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - X Che
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Y Fan
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - K Hou
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - T Guo
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - G Deng
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - N Song
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - C Li
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - X Wan
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - X Qu
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Y Liu
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| |
Collapse
|
23
|
Chen F, Hu P, Liang N, Xie J, Yu S, Tian T, Zhang J, Deng G, Zhang J. Concurrent chemoradiotherapy with weekly nedaplatin versus radiotherapy alone in elderly patients with non-small-cell lung cancer. Clin Transl Oncol 2017; 20:294-301. [PMID: 28741074 DOI: 10.1007/s12094-017-1716-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 07/08/2017] [Indexed: 11/30/2022]
Abstract
PURPOSE We conduct this study to compare the efficacy and toxicity of intensity-modulated radiotherapy (IMRT) concurrent weekly nedaplatin (NDP) versus IMRT alone in the stage III/IV non-surgical elderly patients with non-small-cell lung cancer (NSCLC). METHODS 117 patients were enrolled into our study. The patients were assigned into two different groups: radiotherapy (RT) group and chemoradiotherapy (CRT) group. Patients in RT group were treated with IMRT at a single daily dose of 2 Gy for 5 days per week, totally 52-66 Gy. The CRT group, IMRT concurrent weekly NDP at a dose of 25 mg/m2. RESULTS In CRT group, the median survival was 11.0 months (95% confidence interval [CI], 8.894-13.106 months) and in RT group, it was 7.0 months (95% CI 5.771-8.229 months). The 1-year, 2-year, 3-year, survival rates in the combined treatment arm were higher than the radiation therapy arm (46.8 vs 25.9%, 25.1 vs 11.8%, 14.7 vs 8.0%; p < 0.001). The Cox's multiple regression analysis showed that CRT had significantly better overall survival than RT (HR 0.523; 95.0% CI 0.338-0.807; p = 0.003). The objective response rate provided that 73.3% treated with CRT compared with 51.1% (p = 0.018) received RT alone. Of the hematologic toxicities, leukocytes (35.0 vs 0%; p < 0.001), neutrophils (33.3 vs 0%; p < 0.001) were significantly more common in the CRT group than the RT group. CONCLUSIONS We first discovered that NDP concurrent IMRT for treating stage III/IV non-surgical elderly patients with NSCLC was good curative effect of better objective response rate and well-tolerated. However, within the low number of patients, only stage IV gained a survival benefit.
Collapse
Affiliation(s)
- F Chen
- Department of Oncology, Weifang Medical College, Weifang, Shandong, China
| | - P Hu
- Department of Radiation Oncology, Qianfoshan Hospital Affiliated Shandong University, 16766 Jingshi Road, Jinan, 250014, Shandong, China
| | - N Liang
- Department of Radiation Oncology, Qianfoshan Hospital Affiliated Shandong University, 16766 Jingshi Road, Jinan, 250014, Shandong, China
| | - J Xie
- Department of Radiation Oncology, Qianfoshan Hospital Affiliated Shandong University, 16766 Jingshi Road, Jinan, 250014, Shandong, China
| | - S Yu
- Department of Radiation Oncology, Qianfoshan Hospital Affiliated Shandong University, 16766 Jingshi Road, Jinan, 250014, Shandong, China
| | - T Tian
- Department of Radiation Oncology, Qianfoshan Hospital Affiliated Shandong University, 16766 Jingshi Road, Jinan, 250014, Shandong, China
| | - Jingxin Zhang
- Department of Oncology, Weifang Medical College, Weifang, Shandong, China
| | - G Deng
- Department of Oncology, Shandong University School of Medicine, Jinan, Shandong, China
| | - Jiandong Zhang
- Department of Radiation Oncology, Qianfoshan Hospital Affiliated Shandong University, 16766 Jingshi Road, Jinan, 250014, Shandong, China.
| |
Collapse
|
24
|
Deng G, Ma J, Shen S, Li Q, Peng L, Meng S, Zhou J, Wu J, Liu D. Sofosbuvir Monotherapy for Asymptomatic and Noncirrhotic Hepatitis C Infection in a Renal Retransplantation Recipient: A Case Report. Transplant Proc 2017; 48:3120-3122. [PMID: 27932161 DOI: 10.1016/j.transproceed.2016.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/04/2016] [Indexed: 12/13/2022]
Abstract
Renal transplant recipients infected with hepatitis C virus (HCV) have a high risk of progressing to cirrhosis, end-stage liver diseases, and hepatocellular carcinoma. It is also considered as an independent risk for graft loss and is correlated with proteinuria, transplant glomerulopathy, HCV-associated glomerulonephritis, and chronic rejection. Previous therapy involving interferon alfa and ribavirin led to treatment complications, including toxicity, anemia, sepsis, and drug-drug interactions with calcineurin inhibitors, as well as reduced tolerability and efficacy. New direct-acting antiviral drugs simplify and shorten the treatment along with increasing tolerability and efficacy. Nevertheless, limited data and no specific regimen with direct-acting antiviral drugs have been described in the literature for renal transplant recipients with chronic HCV. We describe here the case of a 52-year-old Chinese man who diagnosed with chronic renal failure in 1997 and underwent renal transplantation the same year. In 2012, he was diagnosed with renal graft failure and again underwent hemodialysis. The patient then underwent his second renal transplantation and was administered an immunosuppressive cyclosporine-based regimen in 2015. During hemodialysis, he acquired asymptomatic genotype 1b HCV infection. Serologic test results reflecting liver cirrhosis were all negative, and ultrasound showed no abnormalities in the liver. The patient later required oral sofosbuvir monotherapy for 12 weeks after the second kidney transplantation. Curing HCV in renal transplant recipients is necessary. Although our treatment did not successfully result in a sustained virologic response, it suggests that genotype 1b HCV may have a poor response to a sofosbuvir monotherapy regimen. Specific and effective regimens for renal transplant recipients with HCV infection need to be confirmed in the future.
Collapse
Affiliation(s)
- G Deng
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - J Ma
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - S Shen
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - Q Li
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - L Peng
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - S Meng
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - J Zhou
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - J Wu
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - D Liu
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China.
| |
Collapse
|
25
|
Bucay N, Sekhon K, Yang T, Majid S, Shahryari V, Hsieh C, Mitsui Y, Deng G, Tabatabai ZL, Yamamura S, Calin GA, Dahiya R, Tanaka Y, Saini S. MicroRNA-383 located in frequently deleted chromosomal locus 8p22 regulates CD44 in prostate cancer. Oncogene 2016; 36:2667-2679. [PMID: 27893706 PMCID: PMC5426972 DOI: 10.1038/onc.2016.419] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 08/30/2016] [Accepted: 09/30/2016] [Indexed: 12/13/2022]
Abstract
A major genomic alteration in prostate cancer (PCa) is frequent loss of chromosome (chr) 8p with a common region of loss of heterozygosity (LOH) at chr8p22 locus. Genomic studies implicate this locus in the initiation of clinically significant PCa and with progression to metastatic disease. However, the genes within this region have not been fully characterized to date. Here we demonstrate for the first time that a microRNA component of this region –miR-383- is frequently downregulated in prostate cancer, plays a critical role in determining tumor initiating potential and is involved in prostate cancer metastasis via direct regulation of CD44, a ubiquitous marker of PCa tumor initiating cells (TICs)/ stem cells. Expression analyses of miR-383 in PCa clinical tissues established that low miR-383 expression is associated with poor prognosis. Functional data suggests that miR-383 regulates PCa tumor initiating/ stem-like cells via CD44 regulation. Ectopic expression of miR-383 inhibited tumor initiating capacity of CD44+ PCa cells. Also, ‘anti-metastatic’ effects of ectopic miR-383 expression were observed in a PCa experimental metastasis model. In view of our results, we propose that frequent loss of miR-383 at chr8p22 region leads to tumor initiation and prostate cancer metastasis. Thus, we have identified a novel finding that associates a long observed genomic alteration to PCa stemness and metastasis. Our data suggests that restoration of miR-383 expression may be an effective therapeutic modality against PCa. Importantly, we identified miR-383 as a novel PCa tissue diagnostic biomarker with a potential that outperforms that of serum PSA.
Collapse
Affiliation(s)
- N Bucay
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - K Sekhon
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - T Yang
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - S Majid
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - V Shahryari
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - C Hsieh
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - Y Mitsui
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - G Deng
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - Z L Tabatabai
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - S Yamamura
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - G A Calin
- Department of Experimental Therapeutics, Non-Coding RNA Center, MD Anderson Cancer Center, University of Texas, Houston, TX, USA
| | - R Dahiya
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - Y Tanaka
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| | - S Saini
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Fransisco, CA, USA
| |
Collapse
|
26
|
Liu X, Huang J, Liu S, Deng G, Wu C, Zhang L, Gao X, team E. A comparison of SOLPS5.0 and 3D code EMC3-EIRENE for EAST double null configuration. Fusion Engineering and Design 2016. [DOI: 10.1016/j.fusengdes.2016.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
27
|
Trillo S, Deng G, Biondini G, Klein M, Clauss GF, Chabchoub A, Onorato M. Experimental Observation and Theoretical Description of Multisoliton Fission in Shallow Water. Phys Rev Lett 2016; 117:144102. [PMID: 27740809 DOI: 10.1103/physrevlett.117.144102] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Indexed: 06/06/2023]
Abstract
We observe the dispersive breaking of cosine-type long waves [Phys. Rev. Lett. 15, 240 (1965)] in shallow water, characterizing the highly nonlinear "multisoliton" fission over variable conditions. We provide new insight into the interpretation of the results by analyzing the data in terms of the periodic inverse scattering transform for the Korteweg-de Vries equation. In a wide range of dispersion and nonlinearity, the data compare favorably with our analytical estimate, based on a rigorous WKB approach, of the number of emerging solitons. We are also able to observe experimentally the universal Fermi-Pasta-Ulam recurrence in the regime of moderately weak dispersion.
Collapse
Affiliation(s)
- S Trillo
- Dipartimento di Ingegneria, Università di Ferrara, Via Saragat 1, 44122 Ferrara, Italy
| | - G Deng
- State University of New York at Buffalo, Department of Physics, Buffalo, New York 14260-2900, USA
| | - G Biondini
- State University of New York at Buffalo, Department of Physics, Buffalo, New York 14260-2900, USA
- State University of New York at Buffalo, Department of Mathematics, Buffalo, New York 14260-2900, USA
| | - M Klein
- Ocean Engineering Division, Technical University of Berlin, Salzufer 17-19, 10587 Berlin, Germany
| | - G F Clauss
- Ocean Engineering Division, Technical University of Berlin, Salzufer 17-19, 10587 Berlin, Germany
| | - A Chabchoub
- Department of Mechanical Engineering, Aalto University, 02150 Espoo, Finland
- Department of Ocean Technology Policy and Environment, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8563, Japan
| | - M Onorato
- Dipartimento di Fisica, Università di Torino, Via P. Giuria, 1, 10125 Torino, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Via P. Giuria, 1, 10125 Torino, Italy
| |
Collapse
|
28
|
Dietz RM, Deng G, Orfila JE, Hui X, Traystman RJ, Herson PS. Therapeutic hypothermia protects against ischemia-induced impairment of synaptic plasticity following juvenile cardiac arrest in sex-dependent manner. Neuroscience 2016; 325:132-41. [PMID: 27033251 DOI: 10.1016/j.neuroscience.2016.03.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 03/18/2016] [Accepted: 03/22/2016] [Indexed: 10/22/2022]
Abstract
Pediatric cardiac arrest (CA) often leads to poor neurologic outcomes, including deficits in learning and memory. The only approved treatment for CA is therapeutic hypothermia, although its utility in the pediatric population remains unclear. This study analyzed the effect of mild therapeutic hypothermia after CA in juvenile mice on hippocampal neuronal injury and the cellular model of learning and memory, termed long-term potentiation (LTP). Juvenile mice were subjected to cardiac arrest and cardiopulmonary resuscitation (CA/CPR) followed by normothermia (37°C) and hypothermia (30°C, 32°C). Histological injury of hippocampal CA1 neurons was performed 3days after resuscitation using hematoxylin and eosin (H&E) staining. Field excitatory post-synaptic potentials (fEPSPs) were recorded from acute hippocampal slices 7days after CA/CPR to determine LTP. Synaptic function was impaired 7days after CA/CPR. Mice exposed to hypothermia showed equivalent neuroprotection, but exhibited sexually dimorphic protection against ischemia-induced impairment of LTP. Hypothermia (32°C) protects synaptic plasticity more effectively in females, with males requiring a deeper level of hypothermia (30°C) for equivalent protection. In conclusion, male and female juvenile mice exhibit equivalent neuronal injury following CA/CPR and hypothermia protects both males and females. We made the surprising finding that juvenile mice have a sexually dimorphic response to mild therapeutic hypothermia protection of synaptic function, where males may need a deeper level of hypothermia for equivalent synaptic protection.
Collapse
Affiliation(s)
- R M Dietz
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA; Neuronal Injury Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - G Deng
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO, USA; Neuronal Injury Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - J E Orfila
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO, USA; Neuronal Injury Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - X Hui
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO, USA; Neuronal Injury Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - R J Traystman
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO, USA; Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, USA; Neuronal Injury Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - P S Herson
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO, USA; Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, USA; Neuronal Injury Program, University of Colorado School of Medicine, Aurora, CO, USA.
| |
Collapse
|
29
|
Xie J, Liang N, Zhang J, Qiao L, Luo H, Zhang J, Deng G. Concurrent Chemoradiation Therapy Versus Sequential Chemoradiation Therapy With Capecitabine in Patients 75 Years Old and Over With Locally Advanced Esophageal Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
30
|
Qiao L, Xie J, Cheng J, Liang N, Deng G, Zhang J, Zhang J, Luo H. SU-E-P-51: Dosimetric Comparison to Organs at Risk Sparing Using Volumetric-Modulated Arc Therapy Versus Intensity-Modulated Radiotherapy in Postoperative Radiotherapy of Left-Sided Breast Cancer. Med Phys 2015. [DOI: 10.1118/1.4923985] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
31
|
Deng G, Liang N, Xie J, Zhang J, Qiao L, Luo H, Zhang J. SU-E-P-33: Critical Role of T2-Weighted Imaging Combined with Diffusion-Weighted Imaging of MRI in Diagnosis of Loco-Regional Recurrent Esophageal Cancer After Radical Surgery. Med Phys 2015. [DOI: 10.1118/1.4923967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
32
|
Bildstein V, Garrett P, Ashley S, Ball G, Bianco L, Bandyopadhyay D, Bangay J, Crider B, Demand G, Deng G, Dillmann I, Finlay A, Garnsworthy A, Hackman G, Hadinia B, Krücken R, Leach K, Martin JP, McEllistrem M, Pearson C, Peters E, Prados-Estévez F, Radich A, Sarazin F, Sumithrarachchi C, Svensson C, Vanhoy J, Wong J, Yates S. DESCANT andβ-delayed neutron measurements at TRIUMF. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20159307005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
33
|
Orfila JE, Shimizu K, Garske AK, Deng G, Maylie J, Traystman RJ, Quillinan N, Adelman JP, Herson PS. Increasing small conductance Ca2+-activated potassium channel activity reverses ischemia-induced impairment of long-term potentiation. Eur J Neurosci 2014; 40:3179-88. [PMID: 25080203 DOI: 10.1111/ejn.12683] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 06/30/2014] [Accepted: 07/08/2014] [Indexed: 11/28/2022]
Abstract
Global cerebral ischemia following cardiac arrest and cardiopulmonary resuscitation (CA/CPR) causes injury to hippocampal CA1 pyramidal neurons and impairs cognition. Small conductance Ca(2+)-activated potassium channels type 2 (SK2), expressed in CA1 pyramidal neurons, have been implicated as potential protective targets. Here we showed that, in mice, hippocampal long-term potentiation (LTP) was impaired as early as 3 h after recovery from CA/CPR and LTP remained impaired for at least 30 days. Treatment with the SK2 channel agonist 1-Ethyl-2-benzimidazolinone (1-EBIO) at 30 min after CA provided sustained protection from plasticity deficits, with LTP being maintained at control levels at 30 days after recovery from CA/CPR. Minimal changes in glutamate release probability were observed at delayed times after CA/CPR, implicating post-synaptic mechanisms. Real-time quantitative reverse transcriptase-polymerase chain reaction indicated that CA/CPR did not cause a loss of N-methyl-D-aspartate (NMDA) receptor mRNA at 7 or 30 days after CA/CPR. Similarly, no change in synaptic NMDA receptor protein levels was observed at 7 or 30 days after CA/CPR. Further, patch-clamp experiments demonstrated no change in functional synaptic NMDA receptors at 7 or 30 days after CA/CPR. Electrophysiology recordings showed that synaptic SK channel activity was reduced for the duration of experiments performed (up to 30 days) and that, surprisingly, treatment with 1-EBIO did not prevent the CA/CPR-induced loss of synaptic SK channel function. We concluded that CA/CPR caused alterations in post-synaptic signaling that were prevented by treatment with the SK2 agonist 1-EBIO, indicating that activators of SK2 channels may be useful therapeutic agents to prevent ischemic injury and cognitive impairments.
Collapse
Affiliation(s)
- J E Orfila
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Gallagher P, Arter A, Deng G, Tallant E. Angiotensin-(1-7): A Peptide Hormone with Anti-Cancer Activity. Curr Med Chem 2014; 21:2417-23. [DOI: 10.2174/0929867321666140205133357] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 08/23/2013] [Accepted: 08/24/2013] [Indexed: 11/22/2022]
|
35
|
Liang W, Zhou J, Zhou S, Wang T, Yang L, Xu D, Deng G, Huang D, Mei C, He Y, Zhang Z. Val/Leu247 polymorphism of β2-glycoprotein I and thrombosis in Chinese patients with SLE. Int J Lab Hematol 2014; 37:22-8. [PMID: 24661363 DOI: 10.1111/ijlh.12209] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 01/13/2014] [Indexed: 12/01/2022]
Abstract
INTRODUCTION To determine the polymorphism at position 247 of the β2-glycoprotein I (β2GPI) gene in patients with systemic lupus erythematosus (SLE) and healthy controls in the Chinese Han Population and elucidate the relationship between β2GPI polymorphisms and anti-β2GPI levels, and furthermore investigate the correlation between β2GPI polymorphisms and thrombosis in patients with SLE. METHODS The β2GPI polymorphisms of 300 patients with SLE and 300 healthy controls were examined by single-specific-primer polymerase chain reaction (SSP-PCR), the efficacy of which was confirmed by sequencing technology. Anti-β2GPI antibodies were tested by enzyme-linked immunosorbent assay. β2GPI polymorphisms associated with thrombosis and the presence of anti-β2GPI antibodies were also statistically evaluated with SPSS software. RESULTS The genotype expressions and the allele frequencies were obtained in both patients with SLE and healthy controls. The SLE patients with thrombosis had significantly higher frequencies of the VV genotype and V allele than those without thrombosis and the controls, and there were no differences in VV genotype and V allele expression between the SLE patients without thrombosis and the controls. In contrast, the presence of anti-β2GPI antibody was related to the VV genotype of β2GPI, and the anti-β2GPI-positive patients had obviously higher frequencies of the VV genotype than the negative ones and the controls. CONCLUSION The study results suggested that the V/V genotype and the V-encoding allele at position 247 of the β2GPI gene had strong correlation with the occurrence of thrombosis and the production of the anti-β2GPI antibodies, showing that the Val(247) β2GPI allele may be one of the genetic risk factors for the development of thrombosis in patients with SLE.
Collapse
Affiliation(s)
- W Liang
- Institute of Blood Transfusion of Center Blood Station, Ningbo, Zhejiang, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Wong J, Bildstein V, Garrett P, Bandyopadhyay D, Bangay J, Bianco L, Demand G, Deng G, Finlay A, Hadinia B, Leach K, Liblong A, Svensson C, Sumithrarachchi C, Ball G, Churchman R, Garnsworthy A, Hackman G, Pearson C, Martin J, Ashley S, Crider B, McEllistrem M, Peters E, Prados-Estevez F, Yates S, Vanhoy J. The DEuterated SCintillator Array for Neutron Tagging. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146611040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
37
|
Deng G, Yonchek JC, Quillinan N, Strnad FA, Exo J, Herson PS, Traystman RJ. A novel mouse model of pediatric cardiac arrest and cardiopulmonary resuscitation reveals age-dependent neuronal sensitivities to ischemic injury. J Neurosci Methods 2013; 222:34-41. [PMID: 24192226 DOI: 10.1016/j.jneumeth.2013.10.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 10/21/2013] [Accepted: 10/26/2013] [Indexed: 01/28/2023]
Abstract
BACKGROUND Pediatric sudden cardiac arrest (CA) is an unfortunate and devastating condition, often leading to poor neurologic outcomes. However, little experimental data on the pathophysiology of pediatric CA is currently available due to the scarcity of animal models. NEW METHOD We developed a novel experimental model of pediatric cardiac arrest and cardiopulmonary resuscitation (CA/CPR) using postnatal day 20-25 mice. Adult (8-12 weeks) and pediatric (P20-25) mice were subjected to 6min CA/CPR. Hippocampal CA1 and striatal neuronal injury were quantified 3 days after resuscitation by hematoxylin and eosin (H&E) and Fluoro-Jade B staining, respectively. RESULTS Pediatric mice exhibited less neuronal injury in both CA1 hippocampal and striatal neurons compared to adult mice. Increasing ischemia time to 8 min CA/CPR resulted in an increase in hippocampal injury in pediatric mice, resulting in similar damage in adult and pediatric brains. In contrast, striatal injury in the pediatric brain following 6 or 8 min CA/CPR remained extremely low. As observed in adult mice, cardiac arrest causes delayed neuronal death in pediatric mice, with hippocampal CA1 neuronal damage maturing at 72 h after insult. Finally, mild therapeutic hypothermia reduced hippocampal CA1 neuronal injury after pediatric CA/CPR. COMPARISON WITH EXISTING METHOD This is the first report of a cardiac arrest and CPR model of global cerebral ischemia in mice. CONCLUSIONS Therefore, the mouse pediatric CA/CPR model we developed is unique and will provide an important new tool to the research community for the study of pediatric brain injury.
Collapse
Affiliation(s)
- G Deng
- Department of Pharmacology, University of Colorado Denver, Anschutz Medical Campus, 12800 E. 19th Ave., Aurora, CO 80045, United States
| | - J C Yonchek
- Department of Anesthesiology, University of Colorado Denver, Anschutz Medical Campus, 12800 E. 19th Ave., Aurora, CO 80045, United States
| | - N Quillinan
- Department of Anesthesiology, University of Colorado Denver, Anschutz Medical Campus, 12800 E. 19th Ave., Aurora, CO 80045, United States
| | - F A Strnad
- Department of Anesthesiology, University of Colorado Denver, Anschutz Medical Campus, 12800 E. 19th Ave., Aurora, CO 80045, United States
| | - J Exo
- Department of Pediatrics, University of Colorado Denver, Anschutz Medical Campus, 12800 E. 19th Ave., Aurora, CO 80045, United States
| | - P S Herson
- Department of Pharmacology, University of Colorado Denver, Anschutz Medical Campus, 12800 E. 19th Ave., Aurora, CO 80045, United States; Department of Anesthesiology, University of Colorado Denver, Anschutz Medical Campus, 12800 E. 19th Ave., Aurora, CO 80045, United States
| | - R J Traystman
- Department of Pharmacology, University of Colorado Denver, Anschutz Medical Campus, 12800 E. 19th Ave., Aurora, CO 80045, United States; Department of Anesthesiology, University of Colorado Denver, Anschutz Medical Campus, 12800 E. 19th Ave., Aurora, CO 80045, United States.
| |
Collapse
|
38
|
He Z, Deng G, Tian H, Xu Q, Van Tendeloo G. 90° Rotation of orbital stripes in bilayer manganite PrCa2Mn2O7 studied by in situ transmission electron microscopy. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.01.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
39
|
Xu F, Huang XH, Li LL, Deng G, Cheng H, Rong XF, Li JB, Cheng SY. Molecular cloning and characterization of GbDXS and GbGGPPS gene promoters from Ginkgo biloba. Genet Mol Res 2013; 12:293-301. [PMID: 23408416 DOI: 10.4238/2013.february.4.3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Ginkgolides are key pharmaceutical components in Ginkgo biloba leaves. 1-Deoxy-D-xylulose-5-phosphate synthase (GbDXS) and geranylgeranyl pyrophosphate (GbGGPPS) genes are critical genes involved in ginkgolide biosynthesis. In this study, the promoters of GbDXS and GGPPS, with 676 and 570 bp in length, respectively, were cloned by chromosome walking. The cis-elements of GbDXS and GbGGPPS promoters were predicted and analyzed by the plant cis-acting regulatory element (CARE) database. We found some major cis-elements in the sequence of GbDXS and GbGGPPS promoters. The GbDXS promoter has 3 TATA boxes, 10 CAAT boxes, 6 GATA boxes, and 1 I box. The GbGGPPS promoter has 1 TATA box, 6 CAAT boxes, 6 GATA boxes, and 4 I boxes. Furthermore, some stress-related cis-elements in the promoters of GbDXS and GbGGPPS were found to be light-regulated elements, including sequences over-represented in light-induced promoters (SORLIP1- AT), GATA box, and I box, a gibberellin-responsive element (WRKY), salicylic acid-induced (GT-1), cold- and dehydration-responsive (MYC-Core), and copper-inducible (CURE-Core). Further analyses of these cis-elements will aid in elucidating the molecular mechanisms regulating the expression of the GbDXS and GbGGPPS genes during ginkgolide accumulation in G. biloba.
Collapse
Affiliation(s)
- F Xu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Abstract
Various surveys show that interest in complementary and alternative medicine (cam) is high among cancer patients. Patients want to explore all options that may help their treatment. Many cam modalities offer patients an active role in their self-care, and the resulting sense of empowerment is very appealing. On the other hand, many unscrupulous marketeers promote alternative cancer “cures,” targeting cancer patients who are particularly vulnerable. Some alternative therapies can hurt patients by delaying effective treatment or by causing adverse effects or detrimental interactions with other medications. It is not in the best interest of cancer patients if they cannot get appropriate guidance on the use of cam from the health care professionals who are part of their cancer care team. The Integrative Medicine Service at Memorial Sloan–Kettering Cancer Center in New York was established in 1999 to address patient interest in cam, to incorporate helpful complementary therapies into each patient’s overall treatment management, to guide patients in avoiding harmful alternative therapies, and to develop prospective research to evaluate the efficacy of cam modalities.
Collapse
Affiliation(s)
- G Deng
- Memorial Sloan-Kettering Cancer Center, New York, NY, U.S.A.
| |
Collapse
|
41
|
Deng G, Powell AA, Zhang H, Krishnakumar S, Telli ML, Herrler M, Mindrinos M, Davis RW, Jeffrey SS. Abstract P3-03-03: DNA Mutation as a Biomarker for Tracking Circulating Tumor Cells and Disseminated Tumor Cells in Breast Cancer Metastases. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p3-03-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Most cancer deaths are caused by metastatic disease. Tumor cells exit the primary tumor and travel through blood and/or lymphatic channels to distant sites. Circulating tumor cells (CTCs) from blood and disseminated tumor cells (DTCs) from bone marrow may play key roles in the metastatic process. Primary tumor heterogeneity and how the metastatic process evolves over time may confound the study of metastatic biology. To better distinguish the cells of origin in metastases, we developed new methodologies to isolate single tumor cells from tissues, blood, and bone marrow for DNA and RNA analyses. We compared these analyses in individual cells from primary and metastatic tumors, CTCs and DTCs. Materials and Methods: Single tumor cell suspensions from primary and metastatic tissues were prepared from fresh human specimens or mouse xenografts. Single cells were isolated from blood, bone marrow, or single tumor cell suspensions from tissue using EpCAM-conjugated microbeads and the MagSweeper, a device invented by our group. Unbounded microbeads were removed and the single cells were placed into individual PCR tubes for further nucleic acid analyses. Live CTCs and DTCs from some breast cancer patients were cultured for further testing. Single cell DNA mutational analyses were performed by multiplex PCR sequencing. Single cell transcriptional profiling was performed by multiplex qRT-PCR. Single tumor cells with mutations were compared among multiple compartments: primary tumor, metastatic tumor, blood and bone marrow. Array CGH analysis was used to focus single cell analysis on genes in potential areas of DNA deletion or amplification. Xenograft mouse models were generated using primary or tumor tissues and single cells were compared.
Results: Single tumor cells from fresh or fixed solid tumor tissues were successfully isolated for nucleic acid analyses. CTCs and DTCs isolated by MagSweeper from breast cancer patients could be isolated live and cultured or injected for growth in xenografts. Single cell DNA mutation analysis of the PIK3CA gene was identified in 3/27 breast cancer patients, showing the mutation in only 45/178 single tumor cells. Sequential PIK3CA mutational analyses of CTCs, DTCs, and metastases showed that DTCs better reflected the mutational status of metastases at time points earlier in the metastatic process.
Discussion: Our results indicate that isolating single tumor cells from tumor tissues, blood, and bone marrow provides detailed information about different tumor compartments in individual cancer patients. Single cell DNA mutational analysis can provide a biomarker for tracking CTCs and DTCs over time during the metastatic process. Based on our initial findings, we postulate that the bone marrow serves as a tumor cell reservoir for early metastatic spread in breast cancer.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P3-03-03.
Collapse
Affiliation(s)
- G Deng
- Stanford University School of Medicine, CA; Stanford University School of Medicine, Palo Alto, CA; SciGene, Sunnyvale, CA
| | - AA Powell
- Stanford University School of Medicine, CA; Stanford University School of Medicine, Palo Alto, CA; SciGene, Sunnyvale, CA
| | - H Zhang
- Stanford University School of Medicine, CA; Stanford University School of Medicine, Palo Alto, CA; SciGene, Sunnyvale, CA
| | - S Krishnakumar
- Stanford University School of Medicine, CA; Stanford University School of Medicine, Palo Alto, CA; SciGene, Sunnyvale, CA
| | - ML Telli
- Stanford University School of Medicine, CA; Stanford University School of Medicine, Palo Alto, CA; SciGene, Sunnyvale, CA
| | - M Herrler
- Stanford University School of Medicine, CA; Stanford University School of Medicine, Palo Alto, CA; SciGene, Sunnyvale, CA
| | - M Mindrinos
- Stanford University School of Medicine, CA; Stanford University School of Medicine, Palo Alto, CA; SciGene, Sunnyvale, CA
| | - RW Davis
- Stanford University School of Medicine, CA; Stanford University School of Medicine, Palo Alto, CA; SciGene, Sunnyvale, CA
| | - SS. Jeffrey
- Stanford University School of Medicine, CA; Stanford University School of Medicine, Palo Alto, CA; SciGene, Sunnyvale, CA
| |
Collapse
|
42
|
Zaman MS, Chen Y, Deng G, Shahryari V, Suh SO, Saini S, Majid S, Liu J, Khatri G, Tanaka Y, Dahiya R. The functional significance of microRNA-145 in prostate cancer. Br J Cancer 2010; 103:256-64. [PMID: 20588276 PMCID: PMC2906737 DOI: 10.1038/sj.bjc.6605742] [Citation(s) in RCA: 132] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Background: MicroRNAs (miRNAs) are small noncoding RNAs that have important roles in numerous cellular processes. Recent studies have shown aberrant expression of miRNAs in prostate cancer tissues and cell lines. On the basis of miRNA microarray data, we found that miR-145 is significantly downregulated in prostate cancer. Methods and results: We investigated the expression and functional significance of miR-145 in prostate cancer. The expression of miR-145 was low in all the prostate cell lines tested (PC3, LNCaP and DU145) compared with the normal cell line, PWR-1E, and in cancerous regions of human prostate tissue when compared with the matched adjacent normal. Overexpression of miR-145 in PC3-transfected cells resulted in increased apoptosis and an increase in cells in the G2/M phase, as detected by flow cytometry. Investigation of the mechanisms of inactivation of miR-145 through epigenetic pathways revealed significant DNA methylation of the miR-145 promoter region in prostate cancer cell lines. Microarray analyses of miR-145-overexpressing PC3 cells showed upregulation of the pro-apoptotic gene TNFSF10, which was confirmed by real-time PCR and western analysis. Conclusion: One of the genes significantly upregulated by miR-145 overexpression is the proapoptotic gene TNFSF10. Therefore, modulation of miR-145 may be an important therapeutic approach for the management of prostate cancer.
Collapse
Affiliation(s)
- M S Zaman
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
You Y, Zhao W, Chen S, Tan W, Dan Y, Hao F, Deng G. Association of TBX21 gene haplotypes in a Chinese population with systemic lupus erythematosus. Scand J Rheumatol 2010; 39:254-8. [PMID: 20429676 DOI: 10.3109/03009740903347983] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE T-cell-specific T-box transcription factor (T-bet) is a member of the T-box family of transcription factors regulating type 1 T-helper (Th1) cell development and is thought to be linked with several autoimmune diseases including systemic lupus erythematosus (SLE). The aim of this study was to evaluate whether T-bet gene (TBX21) polymorphisms or its haplotypes are associated with SLE in a Chinese population. METHODS The study included 248 cases with SLE and 261 gender- and age-matched healthy controls. The polymorphisms T-1993C (rs4794067) and T-1514C (rs17250932) in the TBX21 promoter were identified by a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. RESULTS The frequency of both the -1993T and the -1514T allele were significantly higher in SLE patients than in controls. By haplotype analysis, there was significantly decreased frequency of the haplotype at positions -1993C/-1514C in the case group compared with the control group (p = 0.0002). Multifactorial logistic regression analysis showed that individuals with CC/CC haplotype homozygotes had a decreased susceptibility to SLE [p = 0.0004, odds ratio (OR) 0.316, 95% confidence interval (CI) 0.167-0.599]. CONCLUSION Our results suggest that the -1993C/-1514C haplotype may be a protective factor for genetic susceptibility to SLE in the Chinese population.
Collapse
Affiliation(s)
- Y You
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | | | | | | | | | | | | |
Collapse
|
44
|
Yan Z, Tan W, Zhao W, Dan Y, Wang X, Mao Q, Wang Y, Deng G. Regulatory polymorphisms in the IL-10 gene promoter and HBV-related acute liver failure in the Chinese population. J Viral Hepat 2009; 16:775-83. [PMID: 19413695 DOI: 10.1111/j.1365-2893.2009.01139.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Recent reports indicated that high levels of interleukin 10 (IL-10) contribute to the monocytes paralysis and poor clinical outcome in acute liver failure (ALF). Polymorphisms in the promoter region of IL-10 affect IL-10 production and confer susceptibility to inflammatory diseases. The aim of this study was to determine the possible association of the three polymorphisms (A-1082G, T-819C, A-592C) in the IL-10 gene promoter with the susceptibility to hepatitis B virus (HBV)-related ALF in a Chinese population. The IL-10 gene promoter polymorphisms were genotyped in 414 unrelated healthy blood donors, 367 asymptomatic HBV carriers and 345 HBV-related ALF patients. Functional analyses were conducted to verify the biological significances of the associated genetic variations. The allele frequencies of IL-10-592C and -819C were significantly higher in HBV-related ALF patients than in blood donors and asymptomatic HBV carriers. Logistic regression analysis and stratification analysis with adjustment for age and sex indicated that the polymorphisms of A-592C and T-819C were associated with susceptibility to HBV-related ALF (P = 6.9 x 10(-7)), and the -1082A-819C-592C haplotype in the IL-10 gene promoter were associated with an increased susceptibility to ALF in HBV carriers (dominant model, P = 0.0002, odds ratio = 1.60, 95% CI 1.25-2.07). Functional analyses showed that the A-592C polymorphism is a nuclear proteins binding site, and the disease susceptible -592C allele had a higher transcription activity compared with -592A allele. This study emphasizes the importance of IL-10 in the pathophysiology of HBV-related ALF on the population level.
Collapse
Affiliation(s)
- Z Yan
- Department of Infectious Diseases, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | | | | | | | | | | | | | | |
Collapse
|
45
|
Abstract
OBJECTIVE Hypoadiponectinemia has been proved to be closely related to endothelial dysfunction in peripheral arteries and is thought to be an independent risk factor for cardiovascular disease. The objective of this study was to investigate whether adiponectin might independently improve endothelial dysfunction in aorta isolated from high-fat-diet-induced obese. Sprague-Dawley rat and to study the mechanism involved. RESEARCH DESIGN AND SUBJECTS Male Sprague-Dawley rats were fed with a regular or a high-fat diet for 6 weeks. The aorta was isolated, and vascular segments were incubated with vehicle or the globular adiponectin (globular domain (gAD); 2 mg ml(-1)) for 2 h. The effect of gAD on endothelial function and nitric oxide (NO) production was determined. Human aortic endothelial cells in primary culture were treated with vehicle or gAD (4 mg ml(-1)). The effect of gAD on the level of phosphorylation of endothelial nitric oxide synthase (eNOS) at Ser1177, AMPK at Thr176 and Akt at Ser473 in endothelial cells were determined. RESULTS Severe endothelial dysfunction was observed in high-fat diet fed rat aortic segments. After gAd incubation, the endothelium-dependent relaxation was partly improved and total production of nitric oxide as result of enhanced eNOS activity was also increased. In the cultured endothelial cell line HUVEC, globular adiponectin increased the activity of eNOS through activating AMPK by stimulating its phosphorylation at Thr176 but not Akt. CONCLUSION The demonstration in the current study that adiponectin reverses endothelial dysfunction through increasing NO production by eNOS phosphorylation, and decreasing NO inactivation by blocking superoxide production provides a new direction in the prevention of vascular injury in the obesity population.
Collapse
Affiliation(s)
- G Deng
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu City, Sichuan Province, China
| | | | | | | |
Collapse
|
46
|
Li J, Xu X, Zhang Q, Wang X, Deng G, Fang X, Gao X, Ren H, Xu S. Association between Single Nucleotide Polymorphisms in the Dgat2 Gene and Beef Carcass and Quality Traits in Commercial Feedlot Steers. Asian Australas J Anim Sci 2009. [DOI: 10.5713/ajas.2009.70457] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
47
|
Deng G, Mishaeli M, Miller M, Zayed AA, Huntsman D, Gelmon K, Yerushalmi R, Manna E, Krag D, Habib I, Williamson J, Burke J. A new enrichment model for high sensitivity detection and downstream analyses of circulating tumor cells in breast cancer patients. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-4162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract #4162
The detection of circulating tumor cells (CTCs) in breast cancer patients have the potential to improve prognostication and the monitoring of response to treatment. Most CTC enrichment technologies are based on binding to anti-EpCAM antibodies. The sensitivity of such assays is limited by tumors that express no or undetectable levels of EpCAM. Improvements in CTC detection coupled with the development of systems to interrogate CTCs for therapeutic target expression could lead to novel applications for patient monitoring, clinical diagnosis and treatment. In this study, we describe a sensitive and reproducible enrichment method for CTCs. We defined cells as circulating tumor cells with three criteria: Positive for cytokeratin (CK+) and DAPI (nuclear) (DAPI+) and negative staining for CD45 (CD45-). We have previously reported that this system has a higher sensitivity for circulating tumor cell detection and provides a better platform for CTC downstream analyses compare to the methods currently available in the market. Herein, we describe the use of this platform for the evaluation of breast cancer biomarkers in CTCs. Blood samples from patients with metastatic breast cancer were used for CellSearch™ assay (Veridex , LLC ) and our CTC assay (A1000 CTC enrichment and detection kit, Genetix). We performed the CTC enrichment assay using the combination of anti-CK and anti-EpCAM antibodies. CTCs were identified with brightfield and fluorescence labeled anti-CK, anti-CD45 and DAPI (nuclear stain) images. The Ariol® system (Applied Imaging Corporation) was employed for automated cell image capture and analysis of CTCs on glass slides. CTCs enriched on the glass slides were used for CTC downstream analysis. Our CTC enrichment model is designed to have the capability to enrich all the three types of CTCs including CK+ & EpCAM+, CK+ & EpCAM-/low and CK-/low & EpCAM+ cells. Compared to the enrichment methods using anti-EpCAM or anti-cytokeratin antibody alone, a higher CTC detection rate and a larger dynamic CTC detected range were obtained with our new enrichment model. Interestingly there were clear CTC number differences with enrichment methods in the higher CTC count patient samples which indicate that the different enrichment methods may enrich different types of CTCs from patient blood samples.
 Results of DNA and RNA FISH analyses on enriched CTCs indicate that the CTCs on glass slides can be used for its downstream analyses directly or indirectly. Our method may have better performance on enrichment of heterogeneous CTCs and provide a better platform for CTCs profiling for biomarker evaluations and CTC downstream analyses.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 4162.
Collapse
Affiliation(s)
- G Deng
- 1 Genetix USA Inc, San Jose, CA
| | - M Mishaeli
- 2 BC Cancer Agency, Vancouver, BC, Canada
| | - M Miller
- 2 BC Cancer Agency, Vancouver, BC, Canada
| | - AA Zayed
- 2 BC Cancer Agency, Vancouver, BC, Canada
| | - D Huntsman
- 2 BC Cancer Agency, Vancouver, BC, Canada
| | - K Gelmon
- 2 BC Cancer Agency, Vancouver, BC, Canada
| | | | - E Manna
- 3 University of Vermont, College of Medicine, Burlington, VT
| | - D Krag
- 3 University of Vermont, College of Medicine, Burlington, VT
| | - I Habib
- 1 Genetix USA Inc, San Jose, CA
| | | | - J Burke
- 4 Genetix, New Milton, Hampshire, UK
| |
Collapse
|
48
|
Deng G, Smith-Jones HL, Seidman AD, Fornier M, D'Andrea G, Wesa K, Cunningham-Rundles S, Yeung KS, Vickers A, Cassileth BR. A phase I/II trial of a polysaccharide extract from Grifola frondosa (Maitake mushroom) in breast cancer patients. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.3024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
49
|
Pfister D, Vickers A, Deng G, Lee JS, Garrity D, Lee N, Kraus D, Shaha A, Shah J, Cassileth BR. Acupuncture for pain and dysfunction after neck dissection: preliminary results of a randomized controlled trial. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.6016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
50
|
Abstract
1. B- and M-mode echocardiography was used to compare cardiac function in broilers with spontaneous ascites syndrome with that of normal chickens. 2. Thirty ascitic chickens and 15 normal chickens aged three, 4, 5, and 6 weeks from the same flock (180 birds in total) were examined. They were restrained gently in a natural standing position, and echocardiographs were obtained from a 7.0-MHz linear transducer placed on the left pectoral apterium. Indices of cardiac structure and functioning were calculated from the echocardiographs, and some were normalised to body weight. Heart rate was also measured. 3. All cardiac structural indices in both ascitic and normal chickens increased with age. Compared with normal chickens, right ventricular diameter at the end of systole in ascitic chickens was greater at 4, 5 and 6 weeks of age. Ventricular septal thickness at the end of both systole and diastole was greater in ascitic chickens at 5 and 6 weeks. Left ventricular free wall thickness at the end of diastole was less in ascitic chickens at 3 weeks. However, all the structural indices decreased with age after normalisation with body weight. 4. The heart rate of ascitic chickens was lower at 4, 5 and 6 weeks. Normalised left ventricular fractional shortening was lower in ascitic chickens at 4, 5 and 6 weeks, as was normalised right ventricular fractional shortening. Incrassation of the ventricular septum (Delta T), which changed little in normal chickens, was less at 4, 5 and 6 weeks in ascitic chickens. Left ventricular fractional shortening, right ventricular fractional shortening and Delta T were all negatively correlated with ascites heart index at all ages. 5. Taken together the results suggest heart failure of both ventricle, but that right ventricular dysfunction is more extensive than left ventricular dysfunction. We suggest that secondary pulmonary hypertension would result in these ascitic chickens due to volume overload.
Collapse
Affiliation(s)
- G Deng
- Veterinary Medical College of Huazhong Agricultural University, Wuhan 430070, P.R. China.
| | | | | | | | | |
Collapse
|