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Shi M, Ge Q, Wang X, Diao W, Yang B, Sun S, Wang G, Liu T, Chan AML, Gao Z, Wang Y, Wang Y. Functional analysis of the short splicing variant encoded by CHI3L1/YKL-40 in glioblastoma. Front Oncol 2022; 12:910728. [PMID: 36408158 PMCID: PMC9666495 DOI: 10.3389/fonc.2022.910728] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 10/10/2022] [Indexed: 12/04/2023] Open
Abstract
The glycoprotein YKL-40 has been well studied as a serum biomarker of prognosis and disease status in glioblastoma. YKL-40 is a chitinase-like protein with defective chitinase activity that plays an important role in promoting cell proliferation, migration, and metastasis in glioblastoma multiforme (GBM). The short variant (SV) of YKL-40, generated by an alternative splicing event that splices out exon 8, was reported in the early developing human musculoskeletal system, although its role in GBM is still unknown. Our results showed that individual glioblastoma cell lines displayed increased expression of the short variant of YKL-40 after low serum treatment. In addition, unlike the full-length (FL) version, which was localized to all cell compartments, the short isoform could not be secreted and was localized only to the cytoplasm. Functionally, FL YKL-40 promoted cell proliferation and migration, whereas SV YKL-40 suppressed them. Transcriptome analysis revealed that these opposing roles of the two isoforms may be modulated by differentially regulating several oncogenic-related pathways, including p53, the G2/M checkpoint, and MYC-related signaling. This study may provide new ideas for the development of targeted anti-YKL-40 therapy in GBM treatment.
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Affiliation(s)
- Mengqi Shi
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Qianyun Ge
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Xinrong Wang
- Community Healthcare Center, The Second People’s Hospital of Weifang, Weifang, China
| | - Wenbin Diao
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Ben Yang
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Sipeng Sun
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Guohui Wang
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Tian Liu
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Andrew Man-Lok Chan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Zhiqin Gao
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Yi Wang
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Yubing Wang
- School of Life Science and Technology, Weifang Medical University, Weifang, China
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Diao W, Yang B, Sun S, Wang A, Kou R, Ge Q, Shi M, Lian B, Sun T, Wu J, Bai J, Qu M, Wang Y, Yu W, Gao Z. PNA-Modified Liposomes Improve the Delivery Efficacy of CAPIRI for the Synergistic Treatment of Colorectal Cancer. Front Pharmacol 2022; 13:893151. [PMID: 35784721 PMCID: PMC9240350 DOI: 10.3389/fphar.2022.893151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/09/2022] [Indexed: 01/10/2023] Open
Abstract
Tumor-associated antigen mucin 1 (MUC1) is highly expressed in colorectal cancer and is positively correlated with advanced stage at diagnosis and poor patient outcomes. The combination of irinotecan and capecitabine is standard chemotherapy for metastatic colorectal cancer and is known as XELIRI or CAPIRI, which significantly prolongs the progression-free survival and overall survival of colorectal cancer patients compared to a single drug alone. We previously reported that peanut agglutinin (PNA)-conjugated liposomes showed enhanced drug delivery efficiency to MUC1-positive liver cancer cells. In this study, we prepared irinotecan hydrochloride (IRI) and capecitabine (CAP)-coloaded liposomes modified by peanut agglutinin (IRI/CAP-PNA-Lips) to target MUC1-positive colorectal cancer. The results showed that IRI/CAP-PNA-Lips showed an enhanced ability to target MUC1-positive colorectal cancer cells compared to unmodified liposomes. Treatment with IRI/CAP-PNA-Lips also increased the proportion of apoptotic cells and inhibited the proliferation of colorectal cancer cells. The targeting specificity for tumor cells and the antitumor effects of PNA-modified liposomes were significantly increased in tumor-bearing mice with no severe cytotoxicity to normal tissues. These results suggest that PNA-modified liposomes could provide a new delivery strategy for the synergistic treatment of colorectal cancer with clinical chemotherapeutic agents.
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Affiliation(s)
- Wenbin Diao
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Ben Yang
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Sipeng Sun
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Anping Wang
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Rongguan Kou
- School of Life Science and Technology, Weifang Medical University, Weifang, China
| | - Qianyun Ge
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Mengqi Shi
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Bo Lian
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Tongyi Sun
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Jingliang Wu
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Jingkun Bai
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
| | - Meihua Qu
- Translational Medical Center, Second People’s Hospital of Weifang, Weifang, China
| | - Yubing Wang
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
- *Correspondence: Yubing Wang, ; Wenjing Yu, ; Zhiqin Gao,
| | - Wenjing Yu
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
- *Correspondence: Yubing Wang, ; Wenjing Yu, ; Zhiqin Gao,
| | - Zhiqin Gao
- School of Life Science and Technology, Weifang Medical University, Weifang, China
- Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang, China
- *Correspondence: Yubing Wang, ; Wenjing Yu, ; Zhiqin Gao,
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Jiang X, Liu J, Huang X, Liu L, Lin L, Wang Y, Diao W, Cai W, Lin C. PD-0651 SGRT with Innovative Open-face Mask and Mouth Bite: Management of Patient Motion in SRS and SRT. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02898-5] [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: 10/18/2022]
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Jiang B, Wang H, Li N, Yan Q, Wang W, Wang Y, Xue H, Ma S, Li X, Diao W, Pan R, Gao Z, Qu MH. Role of Proximal Intestinal Glucose Sensing and Metabolism in the Blood Glucose Control in Type 2 Diabetic Rats After Duodenal Jejunal Bypass Surgery. Obes Surg 2022; 32:1119-1129. [PMID: 35080701 DOI: 10.1007/s11695-021-05871-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 05/17/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Although gastric surgery can significantly improve blood glucose homeostasis in type 2 diabetes mellitus (T2DM), its mechanism remains unclear. This study evaluated the role of intestinal glucose sensing, glucose transport, and metabolism in the alimentary limb (A limb) of T2DM rats after duodenal jejunal bypass (DJB) surgery. METHODS A T2DM rat model was induced via a high-glucose high-fat diet and low-dose streptozotocin injection. The diabetic rats were divided into two groups: the DJB surgery (T2DM-DJB) group and the sham surgery (T2DM-Sham) group. Wistar rats were used as wild-type control (Control). Small animal PET was used to assess the change in glucose metabolic status in the intestine. The intestinal villi height and the number of EECs after DJB were evaluated. The expressions of sweet taste receptors (T1R2/T1R3), glucose transporters (SGLT1/GLUT2), and key enzymes involved in glucose metabolism (HK2, PFK2, PKM2, G6Pase, and PCK1) in the A limb after DJB was detected by Western blot and qRT-PCR. RESULTS Small animal PET analysis showed the intestinal glucose metabolism increased significantly 6 weeks after DJB surgery. The intestinal villi height and the number of EECs in the A limb 6 weeks after surgery increased significantly in T2DM-DJB rats comparing to T2DM-Sham rats. The mRNA and protein expression of T1R1/T1R3 and SGLT1/GLUT2 were downregulated in DJB-T2DM rats, while enzymes involved in glucose metabolism was upregulated in the A limb in T2DM-DJB rats. CONCLUSION Proximal intestinal glucose sensing and metabolism play an important role in blood glucose homeostasis by DJB.
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Affiliation(s)
- Bin Jiang
- Translational Medical Center, Weifang Second People's Hospital, Weifang, 261041, China
- School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Huaijie Wang
- Translational Medical Center, Weifang Second People's Hospital, Weifang, 261041, China
| | - Na Li
- Translational Medical Center, Weifang Second People's Hospital, Weifang, 261041, China
| | - Qingtao Yan
- Department of Pediatric Surgery, Weifang People's Hospital, The First Affiliated Hospital of Weifang Medical University, Weifang, 261041, China
| | - Weiyu Wang
- Translational Medical Center, Weifang Second People's Hospital, Weifang, 261041, China
| | - Yubing Wang
- School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Hantao Xue
- School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Shengyao Ma
- Translational Medical Center, Weifang Second People's Hospital, Weifang, 261041, China
- School of Pharmacy, Weifang Medical University, Weifang, 261053, China
| | - Xiaocheng Li
- School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Wenbin Diao
- School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Ruiyan Pan
- School of Pharmacy, Weifang Medical University, Weifang, 261053, China.
| | - Zhiqin Gao
- School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China.
| | - Mei-Hua Qu
- Translational Medical Center, Weifang Second People's Hospital, Weifang, 261041, China.
- School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China.
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Xue H, Qin L, Zhang L, Li X, Wu F, Wang W, Wang C, Diao W, Jiang B, Lian B, Wu J, Bai J, Sun T, Zhao C, Qu M, Yu W, Wang Y, Gao Z. Preparation of docetaxel-loaded, glycyrrhetinic acid-modified nanoparticles and their liver-targeting and antitumor activity. Exp Ther Med 2021; 22:1144. [PMID: 34471430 PMCID: PMC8404033 DOI: 10.3892/etm.2021.10578] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 06/25/2021] [Indexed: 01/06/2023] Open
Abstract
Liver cancer is one of the most common malignancies worldwide and poses a serious threat to human health. The most important treatment method, liver cancer chemotherapy, is limited due to its high toxicity and poor specificity. Targeted drug delivery systems have emerged as novel therapeutic strategies that deliver precise, substantial drug doses to target sites via targeting vectors and enhance the therapeutic efficacy. In the present study, glycyrrhetinic acid-modified hyaluronic acid (GA-HA) was used as a carrier for the model drug docetaxel (DTX) to prepare DTX-loaded GA-HA nanoparticles (DTX/GA-HA-NPs). The results indicated that the DTX/GA-HA-NPs exhibited high monodispersity (particle dispersity index, 0.209±0.116) and desirable particle size (208.73±5.0 nm) and zeta potential (-27.83±3.14 mV). The drug loading capacity and encapsulation efficiency of the NPs were 12.59±0.68 and 85.38±4.62%, respectively. Furthermore, it was determined that FITC-GA-HA was taken up by cells and distributed in the cytoplasm. DTX and DTX/GA-HA (just the DTX delivered by the nanoparticle) aggregated and altered the structure of cellular microtubules. Compared with DTX alone, DTX/GA-HA-NPs had a stronger inhibitory effect on HepG2 cell proliferation and promoted apoptosis of HepG2 cells. All experimental results indicated that DTX/GA-HA-NPs were successfully prepared and had liver-targeting and antitumor activities in vitro, which provided a foundation for future in vivo studies of the antitumor effects of DTX/GA-HA-NPs.
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Affiliation(s)
- Hantao Xue
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Liya Qin
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Longxiang Zhang
- Department of Pharmacology, Laboratory of Applied Pharmacology, College of Pharmacy, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Xiaocheng Li
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Fei Wu
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Weiyu Wang
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Chen Wang
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Wenbin Diao
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Bin Jiang
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Bo Lian
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Jingliang Wu
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Jingkun Bai
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Tongyi Sun
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Chunling Zhao
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Meihua Qu
- Department of Pharmacology, Laboratory of Applied Pharmacology, College of Pharmacy, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Wenjing Yu
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Yubing Wang
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Zhiqin Gao
- Shandong Key Laboratory of Medical and Health Sciences, Key Laboratory of Biotechnological Medicine in Universities of Shandong, School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
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Wu F, Xue H, Li X, Diao W, Jiang B, Wang W, Yu W, Bai J, Wang Y, Lian B, Feng W, Sun T, Qu M, Zhao C, Wang Y, Wu J, Gao Z. Enhanced targeted delivery of adenine to hepatocellular carcinoma using glycyrrhetinic acid-functionalized nanoparticles in vivo and in vitro. Biomed Pharmacother 2020; 131:110682. [PMID: 32947204 DOI: 10.1016/j.biopha.2020.110682] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 06/18/2020] [Revised: 08/15/2020] [Accepted: 08/20/2020] [Indexed: 12/24/2022] Open
Abstract
Hepatocellular carcinoma (HCC), a common malignancy in China and globally, is primarily treated through surgical resection and liver transplantation, with chemotherapy as a significant synergistic option. Adenine (Ade), a nucleobase, exhibits antitumor effects by blocking human hepatic carcinoma cells in S phase and inhibiting tumor cell proliferation. However, its use is limited owing to its low solubility, poor targeting ability, and nephrotoxicity. Therefore, liver-targeting drug delivery systems have attracted considerable attention for the treatment of HCC. In this study, we explored the liver-targeting efficacy and antitumor effect of adenine-loaded glycyrrhetinic acid-modified hyaluronic acid (Ade/GA-HA) nanoparticles in vitro and in vivo. The GA-HA nanoparticles possessed obvious targeting specificity toward liver cancer cells, which was mainly achieved by the specific binding of the GA ligand to the GA receptor that was highly expressed on the liver cell membrane. In vitro and in vivo results showed that Ade/GA-HA nanoparticles could inhibit liver cancer cell proliferation and migration, promote apoptosis, and significantly inhibit the growth of tumor tissues. Altogether, this study is the first to successfully demonstrate that the targeting activity and antitumor effect of Ade against HCC are enhanced by using GA-HA nanoparticles in vitro and in vivo.
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Affiliation(s)
- Fei Wu
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Hantao Xue
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Xiaocheng Li
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Wenbin Diao
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Bin Jiang
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Weiyu Wang
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Wenjing Yu
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Jingkun Bai
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Yi Wang
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Bo Lian
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Weiguo Feng
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Tongyi Sun
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Meihua Qu
- Translational Medical Center, Weifang Second People's Hospital, Weifang Respiratory Disease Hospital, Weifang 261041, China
| | - Chunling Zhao
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China
| | - Yubing Wang
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China.
| | - Jingliang Wu
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China.
| | - Zhiqin Gao
- School of Bioscience and Technology, Weifang Medical University, Weifang, Shandong Province, China.
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Korir NK, Diao W, Tao R, Li X, Kayesh E, Li A, Zhen W, Wang S. Genetic diversity and relationships among different tomato varieties revealed by EST-SSR markers. Genet Mol Res 2014; 13:43-53. [PMID: 24446286 DOI: 10.4238/2014.january.8.3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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
The genetic diversity and relationship of 42 tomato varieties sourced from different geographic regions was examined with EST-SSR markers. The genetic diversity was between 0.18 and 0.77, with a mean of 0.49; the polymorphic information content ranged from 0.17 to 0.74, with a mean of 0.45. This indicates a fairly high degree of diversity among these tomato varieties. Based on the cluster analysis using unweighted pair-group method with arithmetic average (UPGMA), all the tomato varieties fell into 5 groups, with no obvious geographical distribution characteristics despite their diverse sources. The principal component analysis (PCA) supported the clustering result; however, relationships among varieties were more complex in the PCA scatterplot than in the UPGMA dendrogram. This information about the genetic relationships between these tomato lines helps distinguish these 42 varieties and will be useful for tomato variety breeding and selection. We confirm that the EST-SSR marker system is useful for studying genetic diversity among tomato varieties. The high degree of polymorphism and the large number of bands obtained per assay shows that SSR is the most informative marker system for tomato genotyping for purposes of rights/protection and for the tomato industry in general. It is recommended that these varieties be subjected to identification using an SSR-based manual cultivar identification diagram strategy or other easy-to-use and referable methods so as to provide a complete set of information concerning genetic relationships and a readily usable means of identifying these varieties.
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Affiliation(s)
- N K Korir
- College of Horticulture, Nanjing Agricultural University, Weigang, Nanjing, China
| | - W Diao
- Vegetable Research Institute, Jiangsu Provincial Academy of Agricultural Sciences, Nanjing, China
| | - R Tao
- College of Horticulture, Nanjing Agricultural University, Weigang, Nanjing, China
| | - X Li
- College of Horticulture, Nanjing Agricultural University, Weigang, Nanjing, China
| | - E Kayesh
- College of Horticulture, Nanjing Agricultural University, Weigang, Nanjing, China
| | - A Li
- College of Horticulture, Nanjing Agricultural University, Weigang, Nanjing, China
| | - W Zhen
- College of Horticulture, Nanjing Agricultural University, Weigang, Nanjing, China
| | - S Wang
- Vegetable Research Institute, Jiangsu Provincial Academy of Agricultural Sciences, Nanjing, China
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Qian J, Xu X, Diao W. [Analysis of extracorporeal circulation on ventricular septal defect complicated by severe pulmonary hypertension in 53 children]. Zhonghua Wai Ke Za Zhi 1996; 34:270-2. [PMID: 9387700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Extracorporeal circulation and myocardial protection in 53 children with ventricular septal defect associated with severe pulmonary hypertension were reported. The average aortic cross-clamping time was 45.5 minutes. The hearts were defibrillated spontaneously in 35 patients. We emphasized that full understanding of the pathophysiological characteristics of ventricular septal defect associated with severe pulmonary hypertension in children is fairly important to the use of various extracorporeal circulation techniques during surgical intervention.
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Affiliation(s)
- J Qian
- Department of Cardiovascular Surgery, Shanghai Chest Hospital
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