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Han XY, Zhang L, Yang K, Chen JM, Zhou XG, Chen XM, Ma ZY, Qi LM, Wang P, Sun L. [Clinicopathological features of Sjogren's syndrome complicated with liver injury]. Zhonghua Bing Li Xue Za Zhi 2024; 53:377-383. [PMID: 38556822 DOI: 10.3760/cma.j.cn112151-20231005-00229] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Objective: To study the clinicopathological features of Sjogren's syndrome (SS) with liver injury and to improve the understanding of this disease. Methods: Forty-nine patients with SS complicated with liver injury were collected from Beijing Ditan Hospital, Capital Medical University from October 2008 to January 2022. All patients underwent ultrasound-guided liver biopsy, and all specimens were stained with HE. The histopathologic characteristics were observed and the pathologic indexes were graded. Immunohistochemical stains for CK7, CK19, CD38, MUM1 and CD10 were performed by EnVision method; and special histochemical stains for reticulin, Masson's trichrome, Rhodanine, Prussian blue, periodic acid Schiff (PAS) and D-PAS stains were conducted. Results: The age of patients ranged from 31 to 66 years, including 3 males and 46 females. SS combined with drug-induced liver injury was the most common (22 cases, 44.9%), followed by autoimmune liver disease (13 cases, 26.5%, including primary biliary cholangitis in eight cases, autoimmune hepatitis in 3 cases, and PBC-AIH overlap syndrome in 2 cases), non-alcoholic fatty liver disease (NAFLD, 9 cases, 18.4%) and other lesions (5 cases, 10.2%; including 3 cases of nonspecific liver inflammation, 1 case of liver amyloidosis, and 1 case of porto-sinusoidal vascular disease). Among them, 28 cases (57.1%) were associated with obvious interlobular bile duct injury, mainly in SS combined with PBC group and drug-induced liver injury group. Twenty-three cases (46.9%) were associated with hepatocyte steatosis of varying degrees. In SS with autoimmune liver disease group, ISHAK score, degree of fibrosis bile duct injury, bile duct remodeling, lymphocyte infiltration of portal area, and plasma cell infiltration, MUM1 and CD38 expression; serum ALP and GGT, IgM; elevated globulin; positive AMA, proportion of AMA-M2 positive and IgM positive were all significantly higher than those in other groups(all P<0.05). Serum ALT, direct bilirubin and SSA positive ratio in SS combined with drug liver group were significantly higher than those in other groups(all P<0.05). The serum total cholesterol level in SS combined with PBC group (P=0.006) and NALFD group (P=0.011) were significantly higher than those in other groups (P<0.05). Conclusions: The pathologic manifestations of SS patients with liver injury are varied. The inflammatory lesions of SS patients with autoimmune liver disease are the most serious, and the inflammatory lesions of SS patients with non-alcoholic fatty liver disease and non-specific inflammation are mild. Comprehensive analysis of liver histopathologic changes and laboratory findings is helpful for the diagnosis of SS complicated with different types of liver injury.
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Affiliation(s)
- X Y Han
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - L Zhang
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - K Yang
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - J M Chen
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - X G Zhou
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - X M Chen
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - Z Y Ma
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - L M Qi
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - P Wang
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - L Sun
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
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An R, Ma ZY, Zhu HY, Zhang LY, Li L, Wang C, Ding HY. [Clinicopathological analysis of benign mammary ductal cystic papillomatosis with loss of myoepithelial cells]. Zhonghua Bing Li Xue Za Zhi 2023; 52:902-906. [PMID: 37670618 DOI: 10.3760/cma.j.cn112151-20230209-00113] [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: 09/07/2023]
Abstract
Objective: To investigate the histopathological and immunohistochemical characteristics of benign apocrine cystic papillary hyperplasia of the breast with loss of myoepithelial cell layer. Methods: The clinical data, histopathological features and immunohistochemical profile of patients with benign apocrine cystic papillary hyperplasia of breast with loss of myoepithelial cell layer from January 2016 to December 2021 were examined, in which six patients were identified. Results: All six patients were female, aged 36-61 years (median 46 years), who presented with a breast mass; three cases were from the left breast and three cases were from the right breast. Microscopic examination of all cases showed breast hyperplasia with apocrine cysts, accompanied by different degrees of micropapillary and papillary hyperplasia of apocrine cells. One case was associated with lobular carcinoma in situ, and one case was associated with apocrine ductal carcinoma in situ with intraductal dissemination in adenosis. Immunohistochemical staining of CK5/6, p63, SMA, SMMHC, Calponin and CD10 showed complete absence of myoepithelial cell layer surrounding ducts in apocrine cystic papillary hyperplasia. Conclusions: The myoepithelial cells of apocrine cystic papillary hyperplasia of the breast may undergo abnormal changes and may even be completely lost. The diagnosis should be comprehensively considered along with cytomorphological and histological features to avoid overdiagnosis.
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Affiliation(s)
- R An
- Department of Pathology, Seventh Medical Center, Chinese PLA Ceneral Hospital, Beijing 100700, China
| | - Z Y Ma
- Department of Pathology, Seventh Medical Center, Chinese PLA Ceneral Hospital, Beijing 100700, China
| | - H Y Zhu
- Department of Pathology, Seventh Medical Center, Chinese PLA Ceneral Hospital, Beijing 100700, China
| | - L Y Zhang
- Department of Pathology, Daxing Teaching Hospital, Capital Medical University, Beijing 102600, China
| | - L Li
- Department of Pathology, Seventh Medical Center, Chinese PLA Ceneral Hospital, Beijing 100700, China
| | - C Wang
- Department of Pathology, Seventh Medical Center, Chinese PLA Ceneral Hospital, Beijing 100700, China
| | - H Y Ding
- Department of Pathology, Seventh Medical Center, Chinese PLA Ceneral Hospital, Beijing 100700, China
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Zhang ZA, Li F, Ma ZY, Li FD, Wang ZL, Li SR, Wang XJ, Li KD. Variability in chewing, ruminal fermentation, digestibility and bacterial communities between subacute ruminal acidosis-susceptible and acidosis-tolerant sheep. Animal 2023; 17:100902. [PMID: 37544054 DOI: 10.1016/j.animal.2023.100902] [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: 03/20/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 08/08/2023] Open
Abstract
Sorting behaviour is a common phenomenon observed in ruminants when they are provided with a total mixed ration, which contributes to variations in the severity of subacute ruminal acidosis (SARA). Pelleted total mixed ration (PTMR) reduces sorting, but high-grain content increases acidosis risk. However, whether the variability in the severity of SARA exists in sheep fed the same high-grain PTMR is less understood. This study aimed to investigate SARA variability among individual sheep offered a high-grain PTMR, considering chewing activity, ruminal fermentation, bacterial communities and nutrient digestibility. Twenty ruminally cannulated male Hu sheep were individually housed in cages and fed a PTMR comprising 80% concentrate mix and 20% roughage. A 14-day adaptation period to the diet and facilities was provided before a 10-day sample collection period. Continuous monitoring of ruminal pH was conducted for 48 h, during which time chewing activity was also recorded. Ruminal fluid samples were collected for analysis of volatile fatty acid and microbial DNA extraction. Faecal samples were collected to measure nutrient digestibility. Based on their acidosis index, the sheep were classified into two groups: SARA-susceptible group (n = 6) and SARA-tolerant group (n = 6). The SARA-susceptible sheep exhibited a lower ruminal mean pH and minimum pH than the SARA-tolerant sheep (P < 0.05). Additionally, the SARA-susceptible group increased the acidosis index, duration and areas of pH below 5.8 and 5.6 compared to the SARA-tolerant group (P < 0.05). The SARA-susceptible group also exhibited a longer ruminating time than the SARA-tolerant group (P < 0.05). The SARA-susceptible group exhibited a tendency to increase the relative abundance of Firmicutes (P = 0.089), while simultaneously decreasing the copy number of Fibrobacter succinogenes in the rumen, as well as the digestibility of NDF and ADF compared to the SARA-tolerant group (P < 0.05). The acidosis index was found to be positively correlated with ruminating time (min/kg DM intake (DMI)) and total chewing time (min/kg DMI), but negatively correlated with the copy number of Fibrobacter succinogenes and Ruminococcus albus in the rumen. These findings indicate that there exists variability in the SARA severity among sheep when fed a high-grain PTMR, as evidenced by varied chewing activity, bacterial communities and nutrient digestibility. Ruminating time, total chewing time per kilogram of DMI as well as the copy number of Fibrobacter succinogenes and Ruminococcus albus in the rumen hold potential as indicators for assessing the severity of SARA.
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Affiliation(s)
- Z A Zhang
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - F Li
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Z Y Ma
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - F D Li
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Z L Wang
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - S R Li
- Animal Husbandry and Veterinary Station, Minqin 733399, China
| | - X J Wang
- Animal Husbandry and Veterinary Station, Minqin 733399, China
| | - K D Li
- Agricultural and Rural Bureau Zhongxing Town Animal Husbandry and Veterinary Station, Minqin 733399, China
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Lu S, Yu XM, Hu YP, Ma ZY, Li XY, Li WD, Liu YP, Wang D, Wang XW, Wang ZH, Wu JX, Zhong DS, Li GF, He WY, Bao YY, Yuan Y, Fan JH. [Response characteristics of tislelizumab combined with chemotherapy in first-line treatment of locally advanced or metastatic non-squamous non-small cell lung cancer]. Zhonghua Zhong Liu Za Zhi 2023; 45:358-367. [PMID: 37078218 DOI: 10.3760/cma.j.cn112152-20220928-00662] [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: 04/21/2023]
Abstract
Objective: To investigate the response characteristics of patients with locally advanced/metastatic non-squamous non-small cell lung cancer (nsq-NSCLC) treated with tislelizumab in combination with chemotherapy in the first line. Methods: Patients with nsq-NSCLC who achieved complete or partial remission after treatment with tislelizumab in combination with chemotherapy or chemotherapy alone in the RATIONALE 304 study, as assessed by an independent review board, were selected to analyze the response characteristics and safety profile of the responders. Time to response (TTR) was defined as the time from randomization to the achievement of first objective response. Depth of response (DpR) was defined as the maximum percentage of tumor shrinkage compared with the sum of the baseline target lesion length diameters. Results: As of January 23, 2020, 128 patients treated with tislelizumab in combination with chemotherapy achieved objective tumor response (responders), representing 57.4%(128/223) of the intention-to-treat population, with a TTR of 5.1 to 33.3 weeks and a median TTR of 7.9 weeks. Of the responders (128), 50.8%(65) achieved first remission at the first efficacy assessment (week 6), 31.3%(40) at the second efficacy assessment (week 12), and 18.0%(23) at the third and subsequent tumor assessments. The percentages of responders who achieved a depth of tumor response of 30% to <50%, 50% to <70% and 70% to 100% were 45.3%(58/128), 28.1%(36/128) and 26.6%(34/128), respectively, with median progression-free survival (PFS) of 9.0 months (95% CI: 7.7 to 9.9 months), 11.5 months (95% CI: 7.7 months to not reached) and not reached (95% CI: 11.8 months to not estimable), respectively. Tislelizumab plus chemotherapy were generally well tolerated in responders with similar safety profile to the overall safety population. Conclusion: Among responders to tislelizumab in combination with chemotherapy for nsq-NSCLC, 82.0%(105/128) achieves response within the first two tumor assessments (12 weeks) and 18.0%(23/128) achieves response at later (18 to 33 weeks) assessments, and there is a trend toward prolonged PFS in responders with deeper tumor response.
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Affiliation(s)
- S Lu
- Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - X M Yu
- Department of Thoracic Oncology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Y P Hu
- Department of Thoracic Oncology, Hubei Cancer Hospital, Wuhan 430079, China
| | - Z Y Ma
- Department of Respiratory Medicine, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou University, Zhengzhou 450003, China
| | - X Y Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W D Li
- Department of Medical Oncology, Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou 510095, China
| | - Y P Liu
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, China
| | - D Wang
- Department of Oncology, Army Sepcialty Medical Center, Chongqing 400042, China
| | - X W Wang
- Department of Medical Oncology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Z H Wang
- Department of Medical Oncology, Shandong Cancer Hospital, Jinan 250117, China
| | - J X Wu
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - D S Zhong
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - G F Li
- Department of Thoracic Surgery, Yunnan Cancer Hospital, Kunming 650118, China
| | - W Y He
- BeiGene (Beijing) Co., Ltd., Beijing 100022, China
| | - Y Y Bao
- BeiGene (Shanghai) Co., Ltd., Shanghai 200020, China
| | - Y Yuan
- BeiGene (Shanghai) Co., Ltd., Shanghai 200020, China
| | - J H Fan
- BeiGene (Beijing) Co., Ltd., Beijing 100022, China
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Ma ZY, Zhu YF, Liu ZH, Zhu HY, Li L, Liu AJ. [Expression of PD-L1 and tumor infiltrating lymphocyte markers in uterine cervical carcinoma]. Zhonghua Bing Li Xue Za Zhi 2022; 51:602-607. [PMID: 35750639 DOI: 10.3760/cma.j.cn112151-20220403-00252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the expression of PD-L1, CD4, CD8 and CXCL-13 in cervical carcinoma, and their clinicopathological significance was analyzed. Methods: A total of 77 patients with cervical carcinoma in the Seventh Medical Center, PLA General Hospital from January 2019 to December 2021 were included. All patients received radical surgical resection in the Seventh Medical Center of Chinese PLA General Hospital. The expression of PD-L1, CD4, CD8 and CXCL-13 was detected by immunohistochemical (IHC) method. The correlation between IHC markers and patients' clinicopathological parameters was analyzed. Results: There were 59 cases of squamous cell carcinoma and 18 cases of adenocarcinoma (ranging from 29 to 69 years) with an average of (49.4±9.8) years. PD-L1 was expressed in different degrees in cervical squamous cell carcinoma and adenocarcinoma (χ²=4.975, P=0.026); CD4+, CD8+and CXCL-13+tumor infiltrating lymphocytes (TIL) were observed in the carcinoma cell nests and peritumoral stroma. PD-L1 expression in cervical carcinoma was moderately correlated with the number of CD4+TIL in the carcinoma nests, and the number of CD8+, CXCL-13+TIL infiltration in the carcinoma nests and stroma, but not to the patient's age, histologic differentiation, presence or absence of vascular invasion, presence or absence of lymph node metastasis and FIGO stage (P>0.05). Conclusions: The high expression of PD-L1 in cervical carcinoma tissues is closely related to the number of TIL in the carcinoma nests and peritumor stroma, suggesting that they may have important reference value for predicting the response to immunotherapy in patients with cervical carcinoma.
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Affiliation(s)
- Z Y Ma
- Department of Clinical Pathology, School of Basic Medicine, Weifang Medical College, Weifang 102653, China Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - Y F Zhu
- Department of Clinical Pathology, School of Basic Medicine, Weifang Medical College, Weifang 102653, China Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - Z H Liu
- Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - H Y Zhu
- Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - L Li
- Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - A J Liu
- Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
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Ma ZY, Chen L, Xian RL, Fang HP, Wang J, Hu Y. [Clinical characteristics and influencing factors of children with parent-reported food allergy]. Zhonghua Er Ke Za Zhi 2022; 60:676-681. [PMID: 35768355 DOI: 10.3760/cma.j.cn112140-20211215-01047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To analyze the clinical characteristics and influencing factors of children with parent-reported food allergy (FA), thus providing empirical evidence for facilitating the effective utilization of medical history information and promoting better health education for parents. Methods: A cross-sectional study was conducted, recruiting all 596 children under 3 years of age who underwent physical examinations from July to August 2019 at the Department of Child Health Care, Children's Hospital of Chongqing Medical University. Children were carried out with questionnaires, skin prick test, and diagnosed with FA through oral food challenge (OFC) by pediatricians. The parent-reported incidence rate, symptoms of FA, and the possible influencing factors, including demographic characteristics, family history of allergy, in-utero exposure to smoke and antibiotic use, feeding methods after birth, and residential environment were collected by questionnaire. The differences of clinical characteristics between parent-reported FA and medically diagnosed FA were analyzed by chi-square test. Logistic regression was used to analyze the factors associated with parent-reported FA. Results: A total of 596 children (316 boys and 280 girls) were recruited for this study. The incidence rate of FA by parent-report (22.0%, 131/596) was higher than that by medical diagnosis (9.9%, 59/596) (χ²=32.46, P<0.001). There were 36.6% (48/131) of children with parent-reported FA and 2.4% (11/465) of children without parent-reported FA receiving medical diagnosis of FA. Among children with parent-reported allergic symptoms, 37.5% (24/64) of those with gastrointestinal symptoms and 31.5% (23/73) of those with skin symptoms received medical diagnosis of FA, respectively. Six out of 7 children with co-presenting cutaneous and gastrointestinal symptoms were diagnosed with FA. Univariate Logistic regression analysis showed that family history of allergy (OR=1.83 (95%CI 1.22-2.73), P=0.003) and damp living environments (OR=2.33 (95%CI 1.13-4.79), P=0.022) were associated with higher likelihood of parent-reported FA. Conclusions: The incidence rate of parent-reported FA is higher than medically diagnosed FA. Clinicians should be highly suspicious of the possibility of FA in children with both cutaneous and gastrointestinal symptoms. Family history of allergy and damp living environments may increase the possibility of parent-reported FA.
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Affiliation(s)
- Z Y Ma
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders (Chongqing), Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing 400014, China
| | - L Chen
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders (Chongqing), Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing 400014, China
| | - R L Xian
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders (Chongqing), Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing 400014, China
| | - H P Fang
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders (Chongqing), Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing 400014, China
| | - J Wang
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders (Chongqing), Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing 400014, China
| | - Y Hu
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders (Chongqing), Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing 400014, China
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Ding XH, Ma ZY, Wang YF, Dou FX, Yuan J, Tian X, Liu AJ. [Clinicopathological features of malignant mixed mesodermal tumor: analysis of 50 cases]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1008-1013. [PMID: 34496490 DOI: 10.3760/cma.j.cn112151-20210126-00083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinicpathological, immunohistochemical and molecular genetic features of malignant mixed mesodermal tumor (MMMT) in the female reproductive system. Methods: To analyze its histopathological characteristics, we performed a retrospective review of the MMMT cases diagnosed at PLA General Hospital, Beijing, China during 2005-2019 using its surgical and pathological databases. EnVision immunohistochemical staining was used to detect the expression of ER, PR, p16, p53 and MMR proteins. Results: Fifty cases were conformed to the diagnosis, including 29 cases originated in the uterus, 16 cases in ovary, 4 cases of synchronous occurrence in uterus and ovary, 1 case in cervix. The tumor was histologically composed of two components, namely carcinoma and sarcoma ones, with clear borderline or blend mutually. The proportion of cancer component in the whole tumor ranged from 5%-90%. The proportion of carcinoma was more than 50% in 76% of the cases, and less than 50% in 24% of cases, including 2 cases with<10% of carcinoma. In the cases of primary uterine MMMT, the main carcinoma type was high grade endometrioid carcinoma (55%, 16/29). In ovarian MMMT, the main carcinoma type was serous carcinoma (12/16), while that of cervical MMMT was squamous cell carcinoma. The others were clear cell carcinoma or the undifferentiated carcinoma. There was one carcinoma type in most cases, only 7 cases had two carcinoma types. Homologous sarcomas, including stromal sarcoma, leiomyosarcoma and high-grade spindle cell sarcomas, were more commonly found in uterine MMMT (72.4%, 21/29). While heterogenic sarcomas, including chondrosarcoma, osteosarcoma and rhabdomyosarcoma, were more commonly noted in ovarian MMMT (12/16) than MMMT of other sites. There were 10 cases that consisted of two types of sarcomas. The synchronous MMMT of uterus and ovary had similar morphology and the types of carcinoma and sarcoma. The tumor cells that spread or metastasized to lymph node, omentum, intestinal wall or skin were all carcinoma cells, and were morphologically consistent with the original tumors. Immunohistochemically, ER and PR were both negative (23/25 in uterine, 8/10 in ovarian tumors). p16 was strongly positive (11/11 in uterine tumors, and 6/6 in ovarian tumors), with similar expression patterns in the carcinoma and sarcoma components. p53 showed mutant-type staining (64%, 21/33) and expressed synchronously in carcinoma and sarcoma components. p53 mutation was found in 35% cases of endometrial carcinoma and 46.7% cases of non-endometrial carcinoma. p53 mutation was also found in only 31.8% cases of heterogenic sarcomas, but in 50% of non-heterogenic sarcomas. Twenty-eight cases (28/33, 85%) presented intact mismatch repair proteins, while 5 cases (5/33, 15%) presented deficient mismatch repair proteins. Conclusions: MMMT in female reproductive system is a rare high-grade biphasic tumor with complex and diverse morphology. The immunohistochemical features are characterized by negative ER/PR and strongly positive p16, mostly mutant p53 and proficient mismatch repair proteins. The patients with a high FIGO stage have worse prognosis.
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Affiliation(s)
- X H Ding
- Department of Pathology, the First Medical Center of PLA General Hospital, Beijing 100853, China
| | - Z Y Ma
- Department of Pathology, the Seventh Medical Center of PLA General Hospital, Beijing 100700, China
| | - Y F Wang
- Department of Pathology, the First Medical Center of PLA General Hospital, Beijing 100853, China
| | - F X Dou
- Department of Pathology, the First Medical Center of PLA General Hospital, Beijing 100853, China
| | - J Yuan
- Department of Pathology, the First Medical Center of PLA General Hospital, Beijing 100853, China
| | - X Tian
- Department of Pathology, the First Medical Center of PLA General Hospital, Beijing 100853, China
| | - A J Liu
- Department of Pathology, the Seventh Medical Center of PLA General Hospital, Beijing 100700, China
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Zhang GW, Cheng RR, Wang HJ, Zhang Y, Li P, Yan XT, Zhang MN, Zhang XJ, Yang JP, Ma ZY. [Therapeutic effect of nivolumab on non-small-cell lung cancer patients with brain metastases: a retrospective study]. Zhonghua Zhong Liu Za Zhi 2020; 42:961-965. [PMID: 33256309 DOI: 10.3760/cma.j.cn112152-20190130-00059] [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 preliminarily explore the treatment effect of nivolumab on Chinese non-small-cell lung cancer (NSCLC) patients with brain metastases, and further enrich the evidences of programmed death-ligand 1 (PD-1) monoclonal antibody in the treatment of NSCLC patients with brain metastases. Methods: The clinical and pathological data of 22 NSCLC patients with brain metastases treated with nivolumab were collected. The electronic imaging data were collected to confirm the treatment effect and time point of disease progression, and the survival data of the patients were obtained through follow-up. Results: Twenty-one patients were evaluated for the intracranial treatment effect. The intracerebral objective response rate (IORR) was 28.6%, the intracranial disease control rate (IDCR) was 47.6%. The median intracranial progression-free-survival (iPFS) of all the 22 patients was 5.2 months. Both the 1-year and 2-year survival rates were 56.7%. Conclusions: The treatment effect of PD-1 monoclonal antibody on NSCLC patients with brain metastases is similar as those without brain metastases.
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Affiliation(s)
- G W Zhang
- Department of Medical Oncology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - R R Cheng
- The First Department of Respiratory, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - H J Wang
- Department of Medical Oncology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Y Zhang
- Department of Biotherapy, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - P Li
- Department of Medical Oncology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - X T Yan
- Department of Medical Oncology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - M N Zhang
- Department of Medical Oncology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - X J Zhang
- Department of Medical Oncology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - J P Yang
- Department of Medical Oncology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Z Y Ma
- Department of Medical Oncology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450003, China
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Ma ZY, Han JL, Li MZ. [Preeclampsia and mitral chordea tendinae rupture in case of twin pregnancy: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:782-784. [PMID: 32957763 DOI: 10.3760/cma.j.cn112148-20191021-00643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Z Y Ma
- Peking University School of Nursing, Beijing 100191, China; Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - J L Han
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - M Z Li
- Peking University School of Nursing, Beijing 100191, China
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Yuan WH, Liu HL, Wei WZ, Ma ZY, Hao P, Deng Z, Deng K, Zhang J, Lu ZH. In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence. J Vis Exp 2020. [PMID: 32597872 DOI: 10.3791/61175] [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: 10/31/2022] Open
Abstract
Accurate control of the polarization states of laser light is important in precision measurement experiments. In experiments involving the use of a vacuum environment, the stress-induced birefringence effect of the vacuum windows will affect the polarization states of laser light inside the vacuum system, and it is very difficult to measure and optimize the polarization states of the laser light in situ. The purpose of this protocol is to demonstrate how to optimize the polarization states of the laser light based on the fluorescence of ions in the vacuum system, and how to calculate the birefringence of vacuum windows based on azimuthal angles of external wave plates with Mueller matrix. The fluorescence of 25Mg+ ions induced by laser light that is resonant with the transition of |32P3/2,F = 4, mF = 4 → |32S1/2,F = 3, mF = 3 is sensitive to the polarization state of the laser light, and maximum fluorescence will be observed with pure circularly polarized light. A combination of half-wave plate (HWP) and quarter-wave plate (QWP) can achieve arbitrary phase retardation and is used for compensating the birefringence of the vacuum window. In this experiment, the polarization state of the laser light is optimized based on the fluorescence of 25Mg+ ion with a pair of HWP and QWP outside the vacuum chamber. By adjusting the azimuthal angles of the HWP and QWP to obtain maximum ion fluorescence, one can obtain a pure circularly polarized light inside the vacuum chamber. With the information on the azimuthal angles of the external HWP and QWP, the birefringence of the vacuum window can be determined.
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Affiliation(s)
- W H Yuan
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - H L Liu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology;
| | - W Z Wei
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - Z Y Ma
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - P Hao
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - Z Deng
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - K Deng
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - J Zhang
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - Z H Lu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology;
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Yang XD, Xu G, Song LH, Zhu H, Liu X, Li FH, Peng SK, Ma ZY, Zhou H. [Comparison of radiological and clinicopathological features of craniofacial fibro-osseous lesions]. Zhonghua Bing Li Xue Za Zhi 2020; 49:122-128. [PMID: 32074723 DOI: 10.3760/cma.j.issn.0529-5807.2020.02.004] [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 clinicopathological and radiological features of benign fibro-osseous lesion (BFOL). Methods: Sixty-five cases of craniofacial BFOL, eight cases of peripheral ossifying fibroma (POF) and one case of low-grade central osteosarcoma diagnosed at Sichuan Provincial People's Hospital between January 2010 and March 2019 were collected. The clinicopathologic features, hematoxylin-eosin and immunohistochemical (IHC) staining and radiographic features were analyzed. MDM2 gene amplification was detected by FISH in difficult borderline cases. Results: This cohort of BFOLs included 50 cases of fibrous dysplasia (FD), 12 cases of ossifying fibroma (OF), and three cases of juvenile psammomatoid ossifying fibroma (JPOF). The average ages of patients with FD,OF and JPOF were 31.7, 39.2 and 26.0 years respectively. The male to female ratio was 1.0∶1.8.The average age of POF was 47.0 years, with male to female ratio of 1∶7. Patient of low-grade central osteosarcoma was a 48-year-old man. Twenty-seven cases of FD were located in the jaw, and 23 cases were in other craniofacial bones. Nine cases of OF were located in the jaw, and three cases were in the nasal cavity. Two cases of JPOF were in the nasal sinus, and one was in the jaw. All POF were located in the gingiva, and low-grade central osteosarcoma was located in the mandible. The imaging features of FD were luffa-like or ground-glass like signal shadows with poorly defined borders with expansion. OF had clear borders or sclerosing margins. Both JOF and low-grade central osteosarcoma were expansile intraosseously and with focally invasive nodular masses with ground-glass like signal shadows; and POF showed soft tissue mass with bone formation. Histological features of BFOLs showed mixed fibrous and irregular osteoid lesions. FD had no clear relationship with the host bone and no osteoblasts surrounded the bone trabeculae. Osteoblasts rimming was found in OF, and the boundaries of the host bone were clear. JPOF and low-grade central osteosarcoma infiltrated the host bone focally, and the latter showed mild cellular atypia. MDM2 amplification was detected in low-grade central osteosarcoma. Conclusions: BFOLs are a group of fibro-osseous lesions with similar morphology in the head and neck and face, but their clinical features and prognosis are different; and their imaging and histological characteristics are also slightly different. Attentions should be given to the combination of clinical, imaging and pathologic features of BFOLs, especially the differential diagnosis between BFOLs and low-grade central osteosarcoma. Molecular detection could be used to assist the diagnosis in difficult cases.
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Affiliation(s)
- X D Yang
- Department of Pathology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - G Xu
- Department of Pathology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - L H Song
- Department of Pathology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - H Zhu
- Department of Pathology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - X Liu
- Department of Pathology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - F H Li
- Department of Pathology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - S K Peng
- Department of Radiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Z Y Ma
- Department of Otorhinolaryngology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - H Zhou
- Department of Maxillofacial Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
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Cao L, Suo XJ, Jiang W, Zhao D, Yan XJ, Yang J, Ma ZY. [Effects of heme oxygenase-1 knockdown on proliferation, invasion and metastasis of lung adenocarcinoma A549 cells and its mechanism]. Zhonghua Zhong Liu Za Zhi 2019; 41:813-819. [PMID: 31770847 DOI: 10.3760/cma.j.issn.0253-3766.2019.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 effects of heme oxygenase-1 (HO-1) knockdown on proliferation, invasion and migration of lung adenocarcinoma A549 cells and explore the mechanism. Methods: The expression levels of HO-1 mRNA in human bronchial epithelial cells (HBECs) and human lung cancer cell lines (A549, H1299, H358 and H1993) were detected by real-time quantitative polymerase chain reaction (RT-qPCR), and immunohistochemistry (IHC) was used to detect the expression level of HO-1 in human lung adenocarcinoma specimens. The HO-1 short hairpin RNA (shRNA) was transfected into A549 cells by RNA interference technique. HO-1 stably deleted A549 cells were selected (HO-1 shRNA group) and verified by RT-qPCR and western blot. HO-1 shRNA A549 cells and control shRNA A549 cells were treated with the inducer of autophagy Torin1 or its inhibitor Bafilomycin A1 (Baf A1), respectively. The expressions of autophagic markers LC3B and p62 were determined by western blot. The proliferation, invasion and migration abilities of each group of A549 cells were assessed by cell counting, Transwell and wound healing assays, respectively. Results: The expressions of HO-1 mRNA in lung cancer cell lines (A549, H1299, H358 and H1993) were significantly higher than that of HBECs, and HO-1 upregulated in human lung adenocarcinoma. The expression of p62 protein and the ratio of LC3B-Ⅱ/ LC3B-Ⅰ in no treatment group, Torin1 treatment group and Baf A1 treatment group were significantly higher than those of the corresponding control group (P<0.05). After 11 days of culture, the number of cells in HO-1 shRNA group were 41.8%, 30.4% and 14.0% of the corresponding control group, respectively. The number of lower chamber cells in HO-1 shRNA group were (35.7±2.1), (27.0±1.0) and (38.0±1.0)/field, respectively, which were lower than (66.0±9.2), (39.3±1.2) and (43.0±2.6)/field of the corresponding control group, respectively (P<0.05). The migration distances of HO-1 shRNA group were (7.47±0.91) mm, (4.23±0.82) mm and (5.42±0.24) mm, which were lower than (10.07±1.26) mm, (7.14±0.07) mm and (12.04±0.80) mm of the corresponding control groups, respectively (P<0.05). Conclusion: Knockdown of HO-1 inhibits the proliferation, invasion and migration of A549 cells by impeding autophagy.
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Affiliation(s)
- L Cao
- Department of Medical Imaging, the Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - X J Suo
- Department of Radiology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - W Jiang
- Department of Nuclear Medicine, Tianjin Medical University Cancer Hospital, Tianjin 300060, China
| | - D Zhao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300072, China
| | - X J Yan
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - J Yang
- Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300072, China
| | - Z Y Ma
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300072, China
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Yuan WH, Liu HL, Wei WZ, Ma ZY, Hao P, Deng Z, Deng K, Zhang J, Lu ZH. A simple method for in situ measurement of vacuum window birefringence. Rev Sci Instrum 2019; 90:113001. [PMID: 31779433 DOI: 10.1063/1.5121568] [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] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
We present a simple method to measure the degrees of circular polarization (DoCP) of laser light inside a vacuum chamber and the birefringence of a vacuum window by detecting the fluorescence emitted by Doppler cooled ions in an ion trap. Imperfect laser polarization will cause ions to be pumped to the dark state which will decrease the fluorescence rates of the ions. With a simulation based on the rate equations of the relevant energy levels of 25Mg+ ions, we find that the fluorescence rate is sensitive to the DoCP of the laser. Based on the simulation result, we present a new method to optimize the DoCP of the laser inside the vacuum chamber by adjusting fast axis azimuthal angles of a half-wave plate and a quarter-wave plate outside the vacuum chamber. The laser light is optimized to be circularly polarized with an uncertainty of the DoCP of 7.8 × 10-5. With the obtained polarization information on both sides of the vacuum window and treating the vacuum window as an unknown wave plate, the phase delay and the fast axis azimuthal angle of the vacuum window can be determined in the form of Mueller matrix. The phase delay is determined to be 197.60(39)°, and the fast axis azimuthal angle is determined to be 104.00(5)°.
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Affiliation(s)
- W H Yuan
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - H L Liu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - W Z Wei
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z Y Ma
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - P Hao
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z Deng
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - K Deng
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - J Zhang
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z H Lu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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Li HX, Wang ZZ, Zhang GW, Zhang MN, Zheng XX, Yang JP, Ma ZY, Wang HJ. [Efficacy of first generation EGFR-TKIs and chemotherapy as first-line therapy in advanced lung adenocarcinoma patients with uncommon EGFR mutations]. Zhonghua Zhong Liu Za Zhi 2019; 41:783-791. [PMID: 31648503 DOI: 10.3760/cma.j.issn.0253-3766.2019.10.012] [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 effects of first generation epithelial growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) compared with platinum-based chemotherapy as first-line therapy in advanced lung adenocarcinoma patients with uncommon EGFR mutations. Methods: Clinical data of 4 276 patients diagnosed as advanced lung adenocarcinoma (ⅢB/Ⅳ) underwent EGFR gene detection at the Affiliated Cancer Hospital of Zhengzhou University from January 2012 to February 2018 were collected and 99 cases with uncommon EGFR mutations were selected. The clinical pathological features, treatment outcomes, treatment options and prognosis after first-line treatment of the 99 cases were analysed and compared with other patients with common EGFR mutations. Results: The objective response rates of patients with uncommon EGFR mutations receiving EGFR-TKIs or platinum-based chemotherapy were 33.0% and 27.1%, respectively. The disease control rates were 76.5% and 87.5%, respectively. The progression-free survival (PFS) of patients treated with EGFR-TKIs was 7.2 months, significantly superior than 4.9 months of patients receiving chemotherapy (P=0.009). The overall survival of patients treated with EGFR-TKIs was 14.3 months, significantly worse than 20.7 months of patients receiving chemotherapy (P=0.034). Multivariate analysis showed that distant metastases (P=0.001) and smoking history (P=0.013) were independent prognostic factors for OS of lung adenocarcinoma patients with EGFR uncommon mutations. Conclusions: Compared with chemotherapy, the usage of first generation of EGFR-TKIs as first-line therapy can improve the short-term efficacy of advanced lung adenocarcinoma patients with EGFR uncommon mutations. However, platinum-based chemotherapy shows a longer overall survival.
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Affiliation(s)
- H X Li
- Department of Respiratory Medicine, Henan Provincial People's Hospital/People's Hospital of Zhengzhou University/People's Hospital of Henan University, Zhengzhou 450003, China
| | - Z Z Wang
- Department of Respiratory Medicine, Henan Provincial People's Hospital/People's Hospital of Zhengzhou University/People's Hospital of Henan University, Zhengzhou 450003, China
| | - G W Zhang
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - M N Zhang
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - X X Zheng
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - J P Yang
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Z Y Ma
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - H J Wang
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
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Sun L, Zhang L, Chen XM, Li P, Zhao HX, Chen JM, Yang K, Ma ZY, Wang P. [Clinicopathological features of intestinal mucosal lesions in AIDS patients and their relation with CD4+ T lymphocytes]. Zhonghua Bing Li Xue Za Zhi 2019; 48:378-384. [PMID: 31104678 DOI: 10.3760/cma.j.issn.0529-5807.2019.05.009] [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 observe the histopathological features of different opportunistic infections and tumors of the intestinal mucosa in AIDS patients, and to explore the correlation between different lesions and CD4+ T lymphocyte levels. Methods: Colonic mucosal biopsy specimens of 263 patients with clinically diagnosed AIDS and abdominal pain, diarrhea, blood in the stool and other gastrointestinal symptoms were collected from Beijing Ditan Hospital from 2010 to 2018. There were 232 males and 31 females, with age range 10-81 (mean 40±13) years. HE staining, histochemical special staining, immunohistochemical staining, and in-situ hybridization were used to detect the expression of different opportunistic infection pathogens, tumors and CD4+ T lymphocytes. Peripheral blood was also taken for CD4+ T lymphocytes, CD8+ T lymphocytes, HIV viral load and routine indicators. Results: The cohort included 263 intestinal mucosal biopsy specimens. There were 175 cases (66.5%) of non-specific inflammation, and pathogens were detected in 41 cases (15.6%), including 20 cases(7.6%) of cytomegalovirus (CMV) infection, 12 cases (4.6%) of mycobacterial infection, eight cases (3.0%) of amoeba infestation, and one case (0.3%) of talaromycesmarneffei infection; there were also 41 (15.6%) neoplastic lesions including 25 cases (9.5%) of intraepithelial neoplasia, 10 cases (3.8%) of adenocarcinoma and squamous cell carcinoma, six cases (2.3%) of lymphoma; and six cases (2.3%) of ulcerative colitis. The peripheral blood CD4+T lymphocyte levels of patients with CMV, mycobacteria and talaromycesmarneffei were less than 200/μL; the peripheral blood CD4+ T lymphocyte level (P<0.01) and intestinal mucosa CD4+T lymphocytes (P<0.01) were all significantly lower than those in patients with non-specific inflammation. The peripheral red blood cells and hemoglobin levels of patients with CMV and mycobacterial infection (P<0.01), adenocarcinoma and squamous cell carcinoma (P<0.05) were significantly lower than those of non-specific inflammation patients. Conclusions: Pathologic examination of intestinal mucosa can identify specific infections and neoplastic lesions in AIDS patients; the most common lesions are non-specific inflammation, and CMV infection is the most common opportunistic infections; CMV, mycobacteria and talaromycesmarneffei infections are associated with decreased levels of CD4+ T lymphocytes in peripheral blood and intestinal mucosa; entamoeba histolytica infestation and non-HIV-related neoplastic lesions such as intraepithelial neoplasia, adenocarcinoma and squamous cell carcinoma are not associated with changes in AIDS immune function.
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Affiliation(s)
- L Sun
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing Institute of Infectious Diseases of Combined Chinese Traditional and Western Medicine, Beijing 100015, China
| | - L Zhang
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing Institute of Infectious Diseases of Combined Chinese Traditional and Western Medicine, Beijing 100015, China
| | - X M Chen
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing Institute of Infectious Diseases of Combined Chinese Traditional and Western Medicine, Beijing 100015, China
| | - P Li
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - H X Zhao
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - J M Chen
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing Institute of Infectious Diseases of Combined Chinese Traditional and Western Medicine, Beijing 100015, China
| | - K Yang
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing Institute of Infectious Diseases of Combined Chinese Traditional and Western Medicine, Beijing 100015, China
| | - Z Y Ma
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing Institute of Infectious Diseases of Combined Chinese Traditional and Western Medicine, Beijing 100015, China
| | - P Wang
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing Institute of Infectious Diseases of Combined Chinese Traditional and Western Medicine, Beijing 100015, China
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Qin YL, Zhao WW, Sun Z, Liu XY, Shi GL, Liu ZY, Ni DR, Ma ZY. Photocatalytic and adsorption property of ZnS–TiO2/RGO ternary composites for methylene blue degradation. ADSORPT SCI TECHNOL 2018. [DOI: 10.1177/0263617418810932] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The visible light–driven ZnS–TiO2/RGO nanocomposites, with good visible light–driven photocatalytic activity, utilizing graphene oxide as precursor, were successfully synthesized via a facile solvothermal thermal method with graphene oxide as precursor. Ti4+ ions were derived from titanium dioxide powder (TiO2, P25) and tetrabutyl titanate. S2− ions and Zn2+ ions were provided by sodium sulfide and zinc acetate, respectively. The photocatalytic and absorbance activity of the nanocomposites was investigated through the photocatalytic degradation of methylene blue in aqueous solution. The results showed that the ZnS–TiO2/RGO nanocomposite prepared by tetrabutyl titanate exhibited better photocatalytic and adsorbance activity for methylene blue under visible light irradiation and its photocatalytic efficiency reached 90% in 60-min light irradiation, almost 1.5 times that of the synthesized ZnS–TiO2/RGO by P25, which was attributed to a cooperative reaction because of an increase of photo-absorption effect of graphene sheets and photocatalytic effect of ZnS nanoparticles. The adsorbance activity for ZnS–TiO2/RGO–tetrabutyl titanate) reached 48%, which was almost 1.7 times higher than that of ZnS–TiO2/RGO-P25 and almost 3.7 times higher than that of ZnS/RGO.
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Affiliation(s)
| | | | - Z Sun
- School of Science, Shenyang Ligong University, Shenyang, China; Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - XY Liu
- School of Science, Shenyang Ligong University, Shenyang, China
| | - GL Shi
- Zolix Instruments Co., Ltd., Beijing, China
| | - ZY Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - DR Ni
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - ZY Ma
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
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Shi YK, Wang L, Han BH, Li W, Yu P, Liu YP, Ding CM, Song X, Ma ZY, Ren XL, Feng JF, Zhang HL, Chen GY, Han XH, Wu N, Yao C, Song Y, Zhang SC, Song W, Liu XQ, Zhao SJ, Lin YC, Ye XQ, Li K, Shu YQ, Ding LM, Tan FL, Sun Y. First-line icotinib versus cisplatin/pemetrexed plus pemetrexed maintenance therapy for patients with advanced EGFR mutation-positive lung adenocarcinoma (CONVINCE): a phase 3, open-label, randomized study. Ann Oncol 2017; 28:2443-2450. [PMID: 28945850 DOI: 10.1093/annonc/mdx359] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [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] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Icotinib has been previously shown to be non-inferior to gefitinib in non-selected advanced non-small-cell lung cancer patients when given as second- or further-line treatment. In this open-label, randomized, phase 3 CONVINCE trial, we assessed the efficacy and safety of first-line icotinib versus cisplatin/pemetrexed plus pemetrexed maintenance in lung adenocarcinoma patients with epidermal growth factor receptor (EGFR) mutation. PATIENTS AND METHODS Eligible participants were adults with stage IIIB/IV lung adenocarcinoma and exon 19/21 EGFR mutations. Participants were randomly allocated (1 : 1) to receive oral icotinib or 3-week cycle of cisplatin plus pemetrexed for up to four cycles; non-progressive patients after four cycles were maintained with pemetrexed until disease progression or intolerable toxicity. The primary end point was progression-free survival (PFS) assessed by independent response evaluation committee. Other end points included overall survival (OS) and safety. RESULTS Between January 2013 and August 2014, 296 patients were randomized, and 285 patients were treated (148 to icotinib, 137 to chemotherapy). Independent response evaluation committee-assessed PFS was significantly longer in the icotinib group (11.2 versus 7.9 months; hazard ratio, 0.61, 95% confidence interval 0.43-0.87; P = 0.006). No significant difference for OS was observed between treatments in the overall population or in EGFR-mutated subgroups (exon 19 Del/21 L858R). The most common grade 3 or 4 adverse events (AEs) in the icotinib group were rash (14.8%) and diarrhea (7.4%), compared with nausea (45.9%), vomiting (29.2%), and neutropenia (10.9%) in the chemotherapy group. AEs (79.1% versus 94.2%; P < 0.001) and treatment-related AEs (54.1% versus 90.5%; P < 0.001) were significantly fewer in the icotinib group than in the chemotherapy group. CONCLUSIONS First-line icotinib significantly improves PFS of advanced lung adenocarcinoma patients with EGFR mutation with a tolerable and manageable safety profile. Icotinib should be considered as a first-line treatment for this patient population.
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Affiliation(s)
- Y K Shi
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing.
| | - L Wang
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - B H Han
- Department of Pulmonology, Shanghai Chest Hospital, Shanghai
| | - W Li
- Department of Oncology, The First Hospital Affiliated to Jilin University, Changchun
| | - P Yu
- Department of Lung Cancer Medical Oncology, Sichuan Cancer Hospital, Chengdu
| | - Y P Liu
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang
| | - C M Ding
- Department of Respiratory Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang
| | - X Song
- Department of Respiratory Medicine, Shanxi Provincial Tumor Hospital, Taiyuan
| | - Z Y Ma
- Department of Oncology, Henan Cancer Hospital, Zhengzhou
| | - X L Ren
- Department of Respiratory Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an
| | - J F Feng
- Department of Oncology, Jiangsu Cancer Hospital, Nanjing
| | - H L Zhang
- Department of Oncology, Tangdu Hospital, The Fourth Military Medical University, Xi'an
| | - G Y Chen
- Department of Medical Oncology, The Affiliated Tumor Hospital of Harbin Medical University, Harbin
| | - X H Han
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - N Wu
- Department of Imaging Diagnosis, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - C Yao
- Department of Biostatistics, Peking University Clinical Research Institute, Beijing
| | - Y Song
- Department of Respiratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing
| | - S C Zhang
- Department of Medical Oncology, Beijing Chest Hospital, Capital Medical University, Beijing
| | - W Song
- Department of Radiology, Peking Union Medical College Hospital, Beijing
| | - X Q Liu
- Department of Pulmonary Oncology, The 307th Hospital of Chinese People's Liberation Army, Beijing
| | - S J Zhao
- Department of Imaging Diagnosis, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Y C Lin
- Department of Medical Oncology, Cancer Hospital of Shantou University Medical College, Shantou
| | - X Q Ye
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang
| | - K Li
- Department of Thoracic Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin
| | - Y Q Shu
- Department of Oncology, Jiangsu Provincial Hospital, Nanjing
| | - L M Ding
- Betta Pharmaceuticals Co., Ltd, Hangzhou, China
| | - F L Tan
- Betta Pharmaceuticals Co., Ltd, Hangzhou, China
| | - Y Sun
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
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18
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Zhang DM, Pan YX, Zhang Y, Li ZK, Wu LQ, Liu HW, Zhang GY, Wang XF, Ma ZY. Antisense expression of Gossypium hirsutum UDP-glucuronate decarboxylase in Arabidopsis leads to changes in cell wall components. Genet Mol Res 2016; 15:gmr7409. [PMID: 26909959 DOI: 10.4238/gmr.15017409] [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: 11/03/2022]
Abstract
UDP-glucuronate decarboxylase (UDP-xylose synthase; UXS, EC 4.1.1.35) is an essential enzyme of the non-cellulosic polysaccharide biosynthetic pathway. In the present study, using transient expression of fluorescently labeled Gossypium hirsutum UXS (GhUXS3) protein in onion epidermal cells, we observed that this protein was distributed in the cytoplasm. The GhUXS3 cDNA of cotton was expressed in an antisense orientation in Arabidopsis thaliana by Agrobacterium tumefaciens-mediated transformation. Homozygous plants showing down-regulation of UXS were analyzed with northern blots. Compared to the untransformed control, transgenic plant showed shorter roots, earlier blossom formation, and delayed senescence. Biochemical analysis indicated that levels of rhamnose, mannose, galactose, glucose, xylose, and cellulose were reduced in some of the down-regulated antisense plants. These results suggest that GhUXS3 regulates the conversion of non-cellulosic polysaccharides and modulates their composition in plant cell walls. We also discuss a possible cellular function for GhUXS in determining the quality of cotton fibers.
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Affiliation(s)
- D M Zhang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - Y X Pan
- North China University Science and Technology, Tangshan, China
| | - Y Zhang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - Z K Li
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - L Q Wu
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - H W Liu
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - G Y Zhang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - X F Wang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - Z Y Ma
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
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19
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Zhou C, Ma ZY, Zhu L, Guo JS, Zhu J, Wang JF. Overexpression of EsMcsu1 from the halophytic plant Eutrema salsugineum promotes abscisic acid biosynthesis and increases drought resistance in alfalfa (Medicago sativa L.). Genet Mol Res 2015. [PMID: 26681214 DOI: 10.4238/2015] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
The stress phytohormone abscisic acid (ABA) plays pivotal roles in plants' adaptive responses to adverse environments. Molybdenum cofactor sulfurases influence aldehyde oxidase activity and ABA biosynthesis. In this study, we isolated a novel EsMcsu1 gene encoding a molybdenum cofactor sulfurase from Eutrema salsugineum. EsMcus1 transcriptional patterns varied between organs, and its expression was significantly upregulated by abiotic stress or ABA treatment. Alfalfa plants that overexpressed EsMcsu1 had a higher ABA content than wild-type (WT) plants under drought stress conditions. Furthermore, levels of reactive oxygen species (ROS), ion leakage, and malondialdehyde were lower in the transgenic plants than in the WT plants after drought treatment, suggesting that the transgenic plants experienced less ROS-mediated damage. However, the expression of several stress-responsive genes, antioxidant enzyme activity, and osmolyte (proline and total soluble sugar) levels in the transgenic plants were higher than those in the WT plants after drought treatment. Therefore, EsMcsu1 overexpression improved drought tolerance in alfalfa plants by activating a series of ABA-mediated stress responses.
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Affiliation(s)
- C Zhou
- School of Life Science, Anhui Science and Technology University, Bengbu, China
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Z Y Ma
- School of Life Science, Anhui Science and Technology University, Bengbu, China
| | - L Zhu
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - J S Guo
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - J Zhu
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - J F Wang
- School of Life Science, Anhui Science and Technology University, Bengbu, China
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20
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Zhou C, Ma ZY, Zhu L, Guo JS, Zhu J, Wang JF. Overexpression of EsMcsu1 from the halophytic plant Eutrema salsugineum promotes abscisic acid biosynthesis and increases drought resistance in alfalfa (Medicago sativa L.). Genet Mol Res 2015; 14:17204-18. [PMID: 26681214 DOI: 10.4238/2015.december.16.20] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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 stress phytohormone abscisic acid (ABA) plays pivotal roles in plants' adaptive responses to adverse environments. Molybdenum cofactor sulfurases influence aldehyde oxidase activity and ABA biosynthesis. In this study, we isolated a novel EsMcsu1 gene encoding a molybdenum cofactor sulfurase from Eutrema salsugineum. EsMcus1 transcriptional patterns varied between organs, and its expression was significantly upregulated by abiotic stress or ABA treatment. Alfalfa plants that overexpressed EsMcsu1 had a higher ABA content than wild-type (WT) plants under drought stress conditions. Furthermore, levels of reactive oxygen species (ROS), ion leakage, and malondialdehyde were lower in the transgenic plants than in the WT plants after drought treatment, suggesting that the transgenic plants experienced less ROS-mediated damage. However, the expression of several stress-responsive genes, antioxidant enzyme activity, and osmolyte (proline and total soluble sugar) levels in the transgenic plants were higher than those in the WT plants after drought treatment. Therefore, EsMcsu1 overexpression improved drought tolerance in alfalfa plants by activating a series of ABA-mediated stress responses.
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Affiliation(s)
- C Zhou
- School of Life Science, Anhui Science and Technology University, Bengbu, China.,School of Life Science and Technology, Tongji University, Shanghai, China
| | - Z Y Ma
- School of Life Science, Anhui Science and Technology University, Bengbu, China
| | - L Zhu
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - J S Guo
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - J Zhu
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - J F Wang
- School of Life Science, Anhui Science and Technology University, Bengbu, China
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21
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Yang J, Yao MH, Du MS, Jin RM, Zhao DH, Ma J, Ma ZY, Zhao YD, Liu B. A near-infrared light-controlled system for reversible presentation of bioactive ligands using polypeptide-engineered functionalized gold nanorods. Chem Commun (Camb) 2015; 51:2569-72. [PMID: 25566852 DOI: 10.1039/c4cc09516b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A near-infrared light-controlled hybrid platform with polypeptide-engineered functionalized gold nanorods has been designed for reversible presentation of the immobilized ligands to cell surface receptors on the engineered materials.
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Affiliation(s)
- Jie Yang
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Hubei, Wuhan 430074, P. R. China.
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Bai LY, Yang XQ, An J, Zhang L, Zhao K, Qin MY, Fang BY, Li C, Xuan Y, Zhang XS, Zhao YD, Ma ZY. Multifunctional magnetic-hollow gold nanospheres for bimodal cancer cell imaging and photothermal therapy. Nanotechnology 2015; 26:315701. [PMID: 26177713 DOI: 10.1088/0957-4484/26/31/315701] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Multifunctional nanocomposites combining imaging and therapeutic functions have great potential for cancer diagnosis and therapy. In this work, we developed a novel theranostic agent based on hollow gold nanospheres (HGNs) and superparamagnetic iron oxide nanoparticles (SPIO). Taking advantage of the excellent magnetic properties of SPIO and strong near-infrared (NIR) absorption property of HGNs, such nanocomposites were applied to targeted magnetic resonance imaging (MRI) and photoacoustic imaging (PAI) of cancer cells. In vitro results demonstrated they displayed significant contrast enhancement for T2-weighted MRI and strong PAI signal enhancement. Simultaneously, the nanocomposites exhibited a high photothermal effect under the irradiation of the near-infrared laser and can be used as efficient photothermal therapy (PTT) agents for selective killing of cancer cells. All these results indicated that such nanocomposites combined with MRI-PAI and PTT functionality can have great potential for effective cancer diagnosis and therapy.
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Ma ZY, Liu YP, Bai LY, An J, Zhang L, Xuan Y, Zhang XS, Zhao YD. Folic acid-targeted magnetic Tb-doped CeF3fluorescent nanoparticles as bimodal probes for cellular fluorescence and magnetic resonance imaging. Dalton Trans 2015; 44:16304-12. [DOI: 10.1039/c5dt01984b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Folic acid-targeted magnetic Tb-doped CeF3nanoparticles were fabricated for cellular MRI and fluorescence dual mode imaging simultaneously.
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Affiliation(s)
- Zhi-Ya Ma
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics – Hubei Bioinformatics & Molecular Imaging Key Laboratory
- Department of Biomedical Engineering
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Yu-Ping Liu
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics – Hubei Bioinformatics & Molecular Imaging Key Laboratory
- Department of Biomedical Engineering
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Ling-Yu Bai
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics – Hubei Bioinformatics & Molecular Imaging Key Laboratory
- Department of Biomedical Engineering
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Jie An
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics – Hubei Bioinformatics & Molecular Imaging Key Laboratory
- Department of Biomedical Engineering
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Lin Zhang
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics – Hubei Bioinformatics & Molecular Imaging Key Laboratory
- Department of Biomedical Engineering
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Yang Xuan
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics – Hubei Bioinformatics & Molecular Imaging Key Laboratory
- Department of Biomedical Engineering
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Xiao-Shuai Zhang
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics – Hubei Bioinformatics & Molecular Imaging Key Laboratory
- Department of Biomedical Engineering
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Yuan-Di Zhao
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics – Hubei Bioinformatics & Molecular Imaging Key Laboratory
- Department of Biomedical Engineering
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan 430074
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Ma ZY, Wang YX. [Establishment of bisphosphonate-related osteonecrosis of the jaw model in rats and preliminary analysis of its etiological mechanism]. Beijing Da Xue Xue Bao Yi Xue Ban 2014; 46:945-949. [PMID: 25512289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To establish bisphosphonate-related osteonecrosis of the jaw (BRONJ) model in rats and to make preliminary analysis of its etiological mechanisms. METHODS A BRONJ model was established in rats using pamidronate, dexamethasone combined with alveolar bone trauma (tooth extraction) method, and the ratios of CD4+ and CD90+ lymphocytes in splenocytes were also analyzed by flow cytometry in each group. For in vitro studies, the effects of pamidronate and dexamethasone on the proliferation of human osteosarcoma cell line MG-63 and mouse pre-osteoclasts cell line Raw 264.7 were investigated using CCK-8 assay. RESULTS The rat BRONJ model was successfully established using the method described above. Flow cytometry results showed that the ratios of CD4+ and CD90+ lymphocytes in splenocytes were much lower in the pamidronate and dexamethasone-treated rats than those in either pamidronte alone- or dexamethasone alone-treated rats. CCK-8 assay results showed that pamidronate could inhibit the proliferation of both MG-63 and Raw 264.7 cell lines, while dexamethasone could enhance the inhibitory effect of pamidronate on Raw 264.7 cells. CONCLUSION This study successfully established the BRONJ model in rats and verified that dexamethasone could enhance the inhibitory effect of pamidronate on pre-osteoclasts in vitro. At least three factors including alveolar bone trauma, infection and immune response induced by dexamethasone could be involved in the process of BRONJ.
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Affiliation(s)
- Z Y Ma
- Special Dental Department, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y X Wang
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China
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Zhou ZM, Feng Z, Zhou J, Fang BY, Qi XX, Ma ZY, Liu B, Zhao YD, Hu XB. Capillary electrophoresis-chemiluminescence detection for carcino-embryonic antigen based on aptamer/graphene oxide structure. Biosens Bioelectron 2014; 64:493-8. [PMID: 25299985 DOI: 10.1016/j.bios.2014.09.050] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/25/2014] [Accepted: 09/22/2014] [Indexed: 01/16/2023]
Abstract
A new strategy is proposed for determination of carcino-embryonic antigen (CEA) based on aptamer/graphene oxide (Apt/GO) by capillary electrophoresis-chemiluminescence (CE-CL) detection system. CEA aptamer conjugated with horseradish peroxidase (HRP) firstly mixes with GO, and the CL will be quenched because the stack of HRP-Apt on GO leads to chemiluminescence resonance energy transfer (CRET). When CEA exists, the specific combination of HRP-Apt and CEA can form HRP-Apt-CEA complex, which dissociates from GO. Then, the CL catalyzed by HRP-Apt-CEA complex can be detected without any CRET, and the content of CEA can be estimated by the CL intensity. It has been proved that the interference issue resulted from free HRP-Apt is solved well by mixing GO firstly with HRP-Apt, which blocks the free HRP-Apt's CL signal due to CL quenching effect of GO; and the interference resulted from GO to CL is also solved by CE, then the sensitivity and accuracy can be greatly improved. Results also showed that the CL intensity had a linear relationship with the concentration of CEA in the range from 0.0654 to 6.54 ng/mL, and the limit of detection was approximately 4.8 pg/mL (S/N = 3). This proposed method with high specificity offers a new way for separation and determination of biomolecule, and has good potential in application of biochemistry and bioanalysis.
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Affiliation(s)
- Zi-Ming Zhou
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zhe Feng
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Jun Zhou
- Department of Clinical Laboratory, Wuhan Commercial Staff Hospital, Wuhan 430021, PR China
| | - Bi-Yun Fang
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Xiao-Xiao Qi
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zhi-Ya Ma
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Bo Liu
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Yuan-Di Zhao
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Xue-Bin Hu
- Union Hospital, Tongji Medical College of Huazhong University of Science & Technology, Wuhan 430022, PR China.
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Chen J, Yang XQ, Meng YZ, Huang HH, Qin MY, Yan DM, Zhao YD, Ma ZY. In vitro and in vivo CT imaging using bismuth sulfide modified with a highly biocompatible Pluronic F127. Nanotechnology 2014; 25:295103. [PMID: 24990410 DOI: 10.1088/0957-4484/25/29/295103] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Probe bismuth sulfide modified with Pluronic F127 (Bi2S3-PF127), which has high biocompatibility and dispersibility, is synthesized using triblock copolymer Pluronic F127 to modify hydrophobic Bi2S3 nanoparticles that are prepared by a hot injection method. TEM results show that most of the probe has a length of about 14.85 ± 1.70 nm and a breadth of about 4.79 ± 0.63 nm. After injected into the tail vein of a mouse, the probe has obvious CT contrast enhancement capability from x-ray CT imaging results. Meanwhile, the probe's in vivo toxicity is also studied. It is found that hematoxylin and eosin stains of major organs have no change. A biochemical analysis (alanine aminotransferase and aspartate aminotransferase) prove the probe has no adverse effects. The results of a blood analysis (white blood cell count, red blood cell count, hemoglobin, and platelet count) are also normal. The biological distribution of Bi by ICP-AES shows that most of nanoparticles are cleaned out after injection 48 h, and the circulation half-life of the probe is 5.0 h, suggesting that Bi2S3-PF127 has a long circulation and indicating that the Bi2S3-PF127 probe has good biocompatibility and safety.
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Xia HX, Yang XQ, Song JT, Chen J, Zhang MZ, Yan DM, Zhang L, Qin MY, Bai LY, Zhao YD, Ma ZY. Folic acid-conjugated silica-coated gold nanorods and quantum dots for dual-modality CT and fluorescence imaging and photothermal therapy. J Mater Chem B 2014; 2:1945-1953. [PMID: 32261631 DOI: 10.1039/c3tb21591a] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Multifunctional nanoparticles (NPs) have great potential for multimodal cancer imaging and effective therapy. We have developed multifunctional NPs (GNR@SiO2@QDs) by incorporating gold nanorods (GNRs) and CdSe/ZnS quantum dots (QDs) into silica. Folic acid (FA) as a targeting ligand was covalently conjugated on the surfaces of GNR@SiO2@QDs with a silane coupling agent. Cell viability assay showed that these NPs had low cytotoxicity. And confocal fluorescence images illustrated that they could selectively target HeLa cells overexpressing folate receptors (FRs) rather than FR-deficient A549 cells. In vitro cell imaging experiments revealed that these NPs exhibited strong X-ray attenuation for X-ray computed tomography (CT) imaging and strong fluorescence for fluorescence imaging. They also showed an enhanced photothermal therapy (PTT) effect for cancer cells due to GNRs' high absorption coefficient in the near infrared (NIR) region and a better heat generation rate. All results show that they have great potential in theranostic applications such as for targeted tumor imaging and therapy.
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Affiliation(s)
- Hong-Xing Xia
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
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Chen J, Yang XQ, Meng YZ, Qin MY, Yan DM, Qian Y, Xu GQ, Yu Y, Ma ZY, Zhao YD. Reverse microemulsion-mediated synthesis of Bi2S3–QD@SiO2–PEG for dual modal CT–fluorescence imaging in vitro and in vivo. Chem Commun (Camb) 2013; 49:11800-2. [DOI: 10.1039/c3cc47710j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Zhang MZ, Yu RN, Chen J, Ma ZY, Zhao YD. Targeted quantum dots fluorescence probes functionalized with aptamer and peptide for transferrin receptor on tumor cells. Nanotechnology 2012; 23:485104. [PMID: 23138109 DOI: 10.1088/0957-4484/23/48/485104] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Quantum dots (QDs) fluorescent probes based on oligonucleotide aptamers and peptides with specific molecular recognition have attracted much attention. In this paper, CdSe/ZnS QDs probes for targeted delivery to mouse and human cells using aptamer GS24 and peptide T7 specific to mouse/human transferrin receptors were developed. Capillary electrophoresis analyses indicated that the optimal molar ratios of QDs to aptamer or peptide were 1:5. Fluorescence and confocal microscope imaging revealed QD-GS24 and QD-T7 probes were able to specifically recognize B16 cells and HeLa cells respectively. Quantitative flow cytometry analysis indicated the transportation of QD-GS24 or QD-T7 into cells could be promoted by corresponding free transferrin. Transmission electron microscopy confirmed the uptake of probes in cells and the effective intracellular delivery. MTT assay suggested the cytotoxicity of probes was related to the surface ligand, and aptamer GS24 (or peptide T7) could reduce the cytotoxicity of probes to a certain degree. The study has great significance for preparing QDs fluorescent probes using non-antibody target molecules.
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Affiliation(s)
- Ming-Zhen Zhang
- Britton Chance Center for Biomedical Photonics, Department of Biomedical Engineering, Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Wuhan, HuBei 430074, People's Republic of China
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Liu HW, Shi RF, Wang XF, Pan YX, Zang GY, Ma ZY. Cloning of a phosphatidylinositol 4-kinase gene based on fiber strength transcriptome QTL mapping in the cotton species Gossypium barbadense. Genet Mol Res 2012; 11:3367-78. [PMID: 22869083 DOI: 10.4238/2012.july.13.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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
Sea Island cotton (Gossypium barbadense) is highly valued for its superior fiber qualities, especially fiber strength. Based on a transcript-derived fragment originated from transcriptome QTL mapping, a fiber strength related candidate gene of phosphatidylinositol 4-kinase cDNA, designated as GbPI4K, was first cloned, and its expression was characterized in the secondary cell wall thickening stage of G. barbadense fibers. The ORF of GbPI4K was found to be 1926 bp in length and encoded a predicted protein of 641 amino acid residues. The putative protein contained a clear PI3/4K kinase catalytic domain and fell into the plant type II PI4K cluster in phylogenetic analysis. In this study, the expression of cotton PI4K protein was also induced in Escherichia coli BL21 (DE3) as a fused protein. Semi-quantitative RT-PCR analysis showed that the gene expressed in the root, hypocotyl and leaf of the cotton plants. Real-time RT-PCR indicated that this gene in Sea Island cotton fibers expressed 10 days longer than that in Upland cotton fibers, and the main expression difference of PI4K between Sea Island cotton and Upland cotton in fibers was located in the secondary cell wall thickening stage of the fiber. Further analysis indicated that PI4K is a crucial factor in the ability of Rac proteins to regulate phospholipid signaling pathways.
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Affiliation(s)
- H W Liu
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Agricultural University of Hebei, Baoding, China
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Guan LY, Li YQ, Lin S, Zhang MZ, Chen J, Ma ZY, Zhao YD. Characterization of CdTe/CdSe quantum dots-transferrin fluorescent probes for cellular labeling. Anal Chim Acta 2012; 741:86-92. [PMID: 22840708 DOI: 10.1016/j.aca.2012.06.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 06/20/2012] [Accepted: 06/21/2012] [Indexed: 10/28/2022]
Abstract
In this paper, we prepared three types of transferrin-quantum dots conjugates (QDs-Tf) using three different methods (electrostatic interaction, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) coupling, denatured transferrin (dTf) coating). Fluorescence emission spectra, surface characteristics, zeta potentials of quantum dots (QDs) and QDs-Tf fluorescent probes were characterized by spectrophotometer, capillary electrophoresis, and dynamic light scattering. Fluorescent imaging of HeLa cells was also performed by QDs and QDs-Tf fluorescent probes. It was found that the fluorescence imaging performances of QDs-Tf probes prepared by electrostatic interaction and EDC coupling were better compared with the one prepared by dTf coating. Then a real-time single cell detection system was established to quantitatively evaluate cell labeling effects of QDs-Tf fluorescent probes. It was found that for cell labeling efficiency, the proportion of cells labeled by quantum dot probes to a group of cells, QDs-Tf probe prepared by EDC coupling showed the highest labeling efficiency (85.55±3.88%), followed by electrostatic interaction (78.86±9.57%), and dTf coating showed the lowest (40.09±10.2%). This efficiency order was confirmed by flow cytometry results. This study demonstrated the relationship between conjugation methods and the resultant QDs-Tf probes and provided a foundation for choosing appropriate QDs-Tf probes in cell labeling.
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Affiliation(s)
- Li-Yun Guan
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Department of Biomedical Engineering, Wuhan, HuBei 430074, PR China
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Zhang Y, Wang XF, Li ZK, Zhang GY, Ma ZY. Assessing genetic diversity of cotton cultivars using genomic and newly developed expressed sequence tag-derived microsatellite markers. Genet Mol Res 2012; 10:1462-70. [PMID: 21823096 DOI: 10.4238/vol10-3gmr1277] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Estimations of genetic diversity and of relationships between varieties are crucial for cotton breeding. The genetic diversity of 59 core cotton cultivars, most of which were collected from China's main cotton-growing areas, was analyzed based on genomic and newly developed expressed sequence tag-derived microsatellite markers, using total DNA extracted from fresh leaf tissue. Three hundred and two fragments were detected, of which 255 were polymorphic. The number of amplification products generated by each primer varied from 2 to 14, with a mean of 5.08 bands/primer. The polymorphism information content was 0.50 to 0.90, with a mean of 0.80. The genetic similarity coefficients were calculated and dendrograms were constructed by the unweighted pair group with arithmetic mean method; the resulting distance matrix gave a dendrogram with four main clusters. Some cultivars with similar pedigrees could be clustered. For example, Zhong206 and Shanmian4, both derived from Deltapine15, were clustered. The genetic similarity coefficient of the 59 core cultivars ranged from 0.53 to 0.99, with a mean of 0.72, indicating that there was a relatively high level of genetic variation.
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Affiliation(s)
- Y Zhang
- North China Key Laboratory for Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, China
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Li YQ, Guan LY, Zhang HL, Chen J, Lin S, Ma ZY, Zhao YD. Distance-dependent metal-enhanced quantum dots fluorescence analysis in solution by capillary electrophoresis and its application to DNA detection. Anal Chem 2011; 83:4103-9. [PMID: 21553809 DOI: 10.1021/ac200224y] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Here the distance dependence of metal-enhanced quantum dots (QDs) fluorescence in solution is studied systematically by capillary electrophoresis (CE). Complementary DNA oligonucleotides-modified CdSe/ZnS QDs and gold nanoparticles (Au NPs) were connected together in solution by the hybridization of complementary oligonucleotides, and a model system (QD-Au) for the study of metal-enhanced QDs fluorescence was constructed, in which the distance between the QDs and Au NPs was controlled by adjusting the base number of the oligonucleotide. In our CE experiments, the metal-enhanced fluorescence of the QDs solution was only observed when the distance between the QDs and Au NPs ranged from 6.8 to 18.7 nm, and the maximum enhancement by a factor of 2.3 was achieved at 11.9 nm. Furthermore, a minimum of 19.6 pg of target DNA was identified in CE based on its specific competition with the QD-DNA in the QD-Au system. This work provides an important reference for future study of metal-enhanced QDs fluorescence in solution and exhibits potential capability in nucleic acid hybridization analysis and high-sensitivity DNA detection.
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Affiliation(s)
- Yong-Qiang Li
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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Wei B, Lu L, Zhang ZY, Ma ZY. Bridging the gap between education and practice in public health, with particular reference to less-developed provinces in China. Public Health 2010; 125:25-29. [PMID: 21167538 PMCID: PMC7118756 DOI: 10.1016/j.puhe.2010.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ongoing healthcare system reform is one of the most important issues in China. There is an increasing awareness that public health education should be reformed to meet the demands of public health practice. This paper summarizes the current status of increasing public healthcare demand and public health service capacity in China, especially in less-developed provinces, and introduces the current public health educational system and public health administration structure. The paper also provides evidence for a considerable gap between public health education and practice, and suggests possible measures to bridge the gap.
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Affiliation(s)
- B Wei
- Guangxi Medical University, Nanning, China.
| | - L Lu
- School of Public Health, Kunming Medical College, Kunming, China; Centre for Disease Control and Prevention of Yunnan Province, Kunming, Yunnan, China
| | - Z Y Zhang
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Z Y Ma
- School of Public Health, Guangxi Medical University, Nanning, China
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Ma ZY, Qian JM, Rui XH, Wang FR, Wang QW, Cui YY, Peng ZH. Inhibition of matrix metalloproteinase-9 attenuates acute small-for-size liver graft injury in rats. Am J Transplant 2010; 10:784-795. [PMID: 20121733 DOI: 10.1111/j.1600-6143.2009.02993.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Ischemia/reperfusion (I/R) and portal hypertension have been implicated in small-for-size liver graft dysfunction. Matrix metalloproteinases-2 and -9 (MMP-2/9) are critically proposed to involve in hepatic I/R injury and activated by hemodynamic force. We hypothesized that MMP-2/9 overexpression played a crucial role in acute graft injury following small-for-size liver transplantation (LT). Rats were randomly assigned into four groups: 75% partial hepatectomy (PH); 100% LT; 25% LT and 25% LT treated with CTT peptide (MMP-2/9 inhibitor). ELISA, real-time PCR, gelatin zymography and immunohistochemistry were used to determine the expression pattern of MMP-2/9 in liver tissue. MMP-9 expression was significantly increased 6 h after reperfusion and reached a peak 12 h in the 25% LT group, whereas MMP-2 was expressed in all groups invariably. Compared with the 25% LT group, rats from CTT-treated group exhibited markedly decreased alanine aminotransferase and total bilirubin values, downregulated proinflammatory cytokines, attenuated malondialdehyde (MDA) and myeloperoxidase (MPO) activities, and improved liver histology. Likewise, MMP-9 inhibition significantly reduced number of TUNEL-positive cells and caspase-3 activity, along with decreased protein levels of Fas and Fas-L. Specifically, rat survival was also improved in the CTT-treated group. These results support critical function of MMP-9 involved in acute small-for-size livergraft injury.
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Affiliation(s)
- Z Y Ma
- Liver Transplant Section, Center for Organ Transplantation, Huashan Hospital, Fudan University, Shanghai, China
| | - J M Qian
- Liver Transplant Section, Center for Organ Transplantation, Huashan Hospital, Fudan University, Shanghai, China
| | - X H Rui
- Liver Transplant Section, Center for Organ Transplantation, Huashan Hospital, Fudan University, Shanghai, China
| | - F R Wang
- Liver Transplant Section, Center for Organ Transplantation, Huashan Hospital, Fudan University, Shanghai, China
| | - Q W Wang
- Liver Transplant Section, Center for Organ Transplantation, Huashan Hospital, Fudan University, Shanghai, China
| | - Y Y Cui
- Liver Transplant Section, Center for Organ Transplantation, Huashan Hospital, Fudan University, Shanghai, China
| | - Z H Peng
- Department of General Surgery, First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Abstract
The severe and often fatal disease in humans and birds caused by H5N1 influenza viruses has been attributed to aberrant pulmonary inflammatory responses. We investigated the role of macrophage migration inhibitory factor (MIF), a proinflammatory cytokine and a pivotal regulator of innate immunity, in H5N1 influenza virus pneumonia in murine model. We found increased MIF mRNA levels in the lungs and MIF protein levels in the serum of infected mice. Although the inhibition of MIF action by isoxazolone-1 (ISO-1) did not render mice more resistant to the lethality of infection, it caused a significant reduction in pulmonary inflammatory cytokines interleukin-1 beta (IL-1beta), IL-6 and tumor necrosis factor alpha (TNF-alphalfa) and chemokine interferon-inducible protein-10 (IP-10). These results indicate the involvement of MIF in inflammatory responses to H5N1 influenza virus infections by induction of pulmonary inflammatory cytokines and chemokines, and suggest that pharmacotherapeutic approaches targeting MIF may hold promise for the treatment of H5N1 influenza virus pneumonia.
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Affiliation(s)
- X Q Hou
- Jilin University, Changchun, PR China
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Huang R, Wang DQ, Ding HL, Wang X, Chen KJ, Xu J, Guo YQ, Song J, Ma ZY. Enhanced electroluminescence from SiN-based multilayer structure by laser crystallization of ultrathin amorphous Si-rich SiN layers. Opt Express 2010; 18:1144-1150. [PMID: 20173937 DOI: 10.1364/oe.18.001144] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Luminescent SiN-based multilayers were prepared in a plasma enhanced chemical vapor deposition system followed by subsequently laser crystallization of ultrathin amorphous Si-rich SiN sublayers. The cross-sectional TEM analysis reveals that grain size of Si nanocrystals embedded in the Si-rich SiN sublayers is independent of the laser fluence, while the grain density can be well controlled by the laser fluence. The devices containing the laser crystallized multilayers show a low turn-on voltage of 5 V and exhibit strong green light emission under both optical and electrical excitations. Moreover, the device after laser-irradiated at 554 mJ/cm(2) shows a significantly enhanced EL intensity as well as external quantum efficiency compared with the device without laser irradiation. The EL mechanism is suggested from the bipolar recombination of electron-hole pairs at Si nanocrystals. The improved performance of the devices was discussed.
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Affiliation(s)
- R Huang
- State Key Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, People's Republic of China.
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Zhou J, Chen GR, Liu Y, Xu J, Wang T, Wan N, Ma ZY, Li W, Song C, Chen KJ. Electroluminescent devices based on amorphous SiN/Si quantum dots/amorphous SiN sandwiched structures. Opt Express 2009; 17:156-162. [PMID: 19129883 DOI: 10.1364/oe.17.000156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A single layer of dense Si quantum dots with average size of 4 nm sandwiched in amorphous SiN layers was prepared by laser crystallization of ultrathin amorphous Si film followed by subsequently thermal annealing. The electroluminescent diodes were fabricated by evaporating Al electrodes on back sides of p-Si substrates and the top surface of samples. Room temperature electroluminescence can be detected with applying the negative voltage around 10V on the top gate electrode and the luminescent intensity is increased with increasing the applied voltage. It was found that the integrated luminescent intensity is linearly proportional to the injection current which suggested the intensity depends on the concentrations of injected carriers after Fowler-Nordheim tunneling through amorphous SiN barriers. The influence of the amorphous SiN with different band gap on the device performance was also discussed briefly.
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Affiliation(s)
- J Zhou
- Department of Physics, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
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Han PG, Ma ZY, Wang ZB, Zhang X. Photoluminescence from intermediate phase silicon structure and nanocrystalline silicon in plasma enhanced chemical vapor deposition grown Si/SiO(2) multilayers. Nanotechnology 2008; 19:325708. [PMID: 21828830 DOI: 10.1088/0957-4484/19/32/325708] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Amorphous Si/SiO(2) multilayers (MLs) on silicon wafers were fabricated in a plasma enhanced chemical vapor deposition system via cycles of silicon deposition and plasma oxidation. The structural and optical properties of the MLs were characterized using transmission electron microscopy, Raman scattering and room temperature photoluminescence (PL) measurements. Intermediate phase silicon structure (IPSS), which is intermediate in order between the continuous random network amorphous phase and the well ordered crystalline phase, was found in the a-Si sublayers around the crystallization onset temperature. Red-near infrared wavelength region PL from recombination via structural defects inside the IPSS and Si = O at the surface of both nanocrystal Si (nc-Si) and IPSS was observed. In the samples with IPSS and nc-Si coexisting, the IPSS was found to be about five times more efficient as regards PL than nc-Si.
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Affiliation(s)
- P G Han
- Laser Research Institute and Department of Physics, Qufu Normal University, Qufu 273165, People's Republic of China
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Wang XF, Ma J, Wang WS, Zheng YM, Zhang GY, Liu CJ, Ma ZY. Construction and characterization of the first bacterial artificial chromosome library for the cotton species Gossypium barbadense L. Genome 2006; 49:1393-8. [PMID: 17426754 DOI: 10.1139/g06-113] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
As the second most widely cultivated cotton, Gossypium barbadense is well known for its superior fiber properties and its high levels of resistance to Fusarium and Verticillium wilts. To enhance our ability to exploit these properties in breeding programs, we constructed the first bacterial artificial chromosome (BAC) library for this species. The library contains 167 424 clones (49 920 BamHI and 117 504 HindIII clones), with an estimated average insert size of 130 kb. About 94.0% of the clones had inserts over 100 kb, and the empty clones accounted for less than 4.0%. Contamination of the library with chloroplast clones was very low (0.2%). Screening the library with locus-specific probes showed that BAC clones represent 6.5-fold genome equivalents. This high-quality library provides an additional asset with which to exploit genetic variation for cotton improvement.
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Affiliation(s)
- X F Wang
- Key Laboratory of Crop Germplasm Resources of Hebei Province, Agricultural University of Hebei, Baoding 071001, China
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Ma ZY, Guan YP, Liu HZ. Affinity adsorption of albumin on Cibacron Blue F3GA-coupled non-porous micrometer-sized magnetic polymer microspheres. REACT FUNCT POLYM 2006. [DOI: 10.1016/j.reactfunctpolym.2005.10.014] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ma ZY, Liu XQ, Guan YP, Liu HZ. Synthesis of magnetic silica nanospheres with metal ligands and application in affinity separation of proteins. Colloids Surf A Physicochem Eng Asp 2006. [DOI: 10.1016/j.colsurfa.2005.04.045] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ma ZY, Guan YP, Liu XQ, Liu HZ. Synthesis of magnetic chelator for high-capacity immobilized metal affinity adsorption of protein by cerium initiated graft polymerization. Langmuir 2005; 21:6987-94. [PMID: 16008413 DOI: 10.1021/la050504g] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A novel magnetic chelator with high adsorption capacity of protein by immobilized metal affinity adsorption was prepared by cerium (IV) initiated graft polymerization of tentacle-type polymer chains with iminodiacetic acid (IDA) chelating group on magnetic particles with hydroxyl groups. The micron-sized magnetic poly(vinyl acetate-divinylbenzene) (PVAc-DVB) particles were prepared by a modified suspension polymerization in the presence of oleic acid-coated magnetite nanoparticles and subsequently modified by ester exchange reaction to introduce functional hydroxyl groups. Bovine hemoglobin (BHb) was selected as a model protein to investigate the adsorption capacity of these magnetic particles. The magnetic particles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), superconducting quantum interference device (SQUID) magnetometry, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), and X-ray diffraction (XRD). The results showed that the magnetic particles had an average size of 5 microm and superparamagnetism with saturation magnetization of 20.0 emu/g at room temperature. The protein adsorption indicated that the graft polymerization of tentacle type polymer chains on the magnetic particles could produce magnetic adsorbents with high adsorption capacity (1428.21 mg/g) and low nonspecific adsorption of protein. The magnetic particles with grafted tentacle polymer chains have potential application in large-scale affinity separation of proteins.
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Affiliation(s)
- Z Y Ma
- Laboratory of Separation Science and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing 100080, P. R. China
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Ma ZY, Guan YP, Liu XQ, Liu HZ. Preparation and characterization of micron-sized non-porous magnetic polymer microspheres with immobilized metal affinity ligands by modified suspension polymerization. J Appl Polym Sci 2005. [DOI: 10.1002/app.21688] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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46
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Ma ZY, Guan YP, Liu HZ. Synthesis of monodisperse nonporous crosslinked poly(glycidyl methacrylate) particles with metal affinity ligands for protein adsorption. POLYM INT 2005. [DOI: 10.1002/pi.1875] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Miyagi M, Humphry M, Ma ZY, Lambrides CJ, Bateson M, Liu CJ. Construction of bacterial artificial chromosome libraries and their application in developing PCR-based markers closely linked to a major locus conditioning bruchid resistance in mungbean (Vigna radiata L. Wilczek). Theor Appl Genet 2004; 110:151-6. [PMID: 15490104 DOI: 10.1007/s00122-004-1821-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2004] [Accepted: 09/12/2004] [Indexed: 05/03/2023]
Abstract
Bacterial artificial chromosome (BAC) libraries have been widely used in different aspects of genome research. In this paper we report the construction of the first mungbean (Vigna radiata L. Wilczek) BAC libraries. These BAC clones were obtained from two ligations and represent an estimated 3.5 genome equivalents. This correlated well with the screening of nine random single-copy restriction fragment length polymorphism probes, which detected on average three BACs each. These mungbean clones were successfully used in the development of two PCR-based markers linked closely with a major locus conditioning bruchid (Callosobruchus chinesis) resistance. These markers will be invaluable in facilitating the introgression of bruchid resistance into breeding programmes as well as the further characterisation of the resistance locus.
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Affiliation(s)
- M Miyagi
- CSIRO Plant Industry, Queensland Bioscience Precinct, 306 Carmody Road, Brisbane, QLD 4067, Australia
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48
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Gao LF, Jing RL, Huo NX, Li Y, Li XP, Zhou RH, Chang XP, Tang JF, Ma ZY, Jia JZ. One hundred and one new microsatellite loci derived from ESTs (EST-SSRs) in bread wheat. Theor Appl Genet 2004; 108:1392-400. [PMID: 14968301 DOI: 10.1007/s00122-003-1554-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2003] [Accepted: 11/21/2003] [Indexed: 05/08/2023]
Abstract
Four hundred and seventy-eight microsatellite markers derived from expressed sequence tags (EST-SSRs) were screened among three mapping populations (W-7984xOpata 85, WOpop; LumaixHanxuan, LHpop; WenmaixShanhongmai, WSpop). The number of polymorphic EST-SSR primer pairs found in WOpop, LHpop and WSpop was 92, 58 and 29 respectively. A total of 101 EST-SSR loci amplified from 88 primer sets were distributed over the 20 chromosomes of the reference maps (no markers were located on chromosome 4B). These 101 mapped EST-SSR markers add to the existing 450 microsatellite loci previously mapped in bread wheat. Seventy-four of the 101 loci showed significant similarities to known genes, including 24 genes involved in metabolism, 4 in cellular structures, 9 in stress resistance, 12 in transcription, 2 in development, 2 transporters and 21 storage proteins. Besides gliadin and glutenin, most of the 53 genes with putative functions were mapped for the first time by EST-SSR markers in bread wheat. Sequence alignment of the mapped wheat EST-SSR loci allowed tentative assignment of functionality to the other members of grasses family. Colinearity combined with homology information offers an attractive approach to comparative genomics.
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Affiliation(s)
- L F Gao
- Key Laboratory of Crop Germplasm and Biotechnology, Ministry of Agriculture, Institute of Crop Germplasm Resources, Chinese Academy of Agricultural Sciences, 100081 Beijing, China
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Abstract
Melanoma antigens (MAGE) are thought to induce a tumor-specific immune response and to be potential therapeutical targets for cancer immunotherapy. We have earlier identified the cDNA of feline melanoma antigen 1 (fMAGE-1), but its product was not characterized in detail. We have expressed the recombinant fMAGE-1 protein and have generated monoclonal antibodies (mAbs) against it, to identify the native fMAGE-1 protein in feline lymphoma cell lines and tumor tissues. The fMAGE-1 protein was found to be approximately 39 kDa in molecular mass on sodium dodecyl-sulphate-polycrylamide gel electrophoresis (SDS-PAGE), and it was found to be located in the cytoplasm of the cells by immunofluorescence. Immunoblotting analysis detected the fMAGE-1 gene product in the fMAGE-1-mRNA-positive cells, but not in the fMAGE-1-mRNA-negative cells. An interesting finding of the present study was the distribution of the fMAGE-1 protein, which was found to have a spindle-like distribution, with filaments twining around the nucleus, suggesting that the fMAGE-1 protein may be associated with or form some cytoplasmic filaments. This type of finding is so far the first report of its kind, and to the best of our knowledge it has not been reported in either human or mouse MAGE proteins until now. It most probably implies the major diversity of the MAGE family genes.
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Affiliation(s)
- Z Y Ma
- Laboratory of Veterinary Internal Medicine, Faculty of Agriculture, Yamaguchi Univeristy, Japan
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50
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Sun F, Tsuritani I, Honda R, Ma ZY, Yamada Y. Association of genetic polymorphisms of alcohol-metabolizing enzymes with excessive alcohol consumption in Japanese men. Hum Genet 1999; 105:295-300. [PMID: 10543395 DOI: 10.1007/s004399900133] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
To evaluate the independent and interactive contributions of alcohol dehydrogenase-2 (ADH2), aldehyde dehydrogenase-2 (ALDH2) and ethanol-induced isozyme cytochrome P450-2E1 (CYP2E1) genes to alcohol consumption large enough to induce health problems, 643 healthy Japanese men aged between 23 and 64 years, recruited from two different occupational groups, were analyzed for genotype and drinking habits. The frequency of excessive alcohol consumers (EAC) who drank 90 ml or more alcohol more than 3 days a week was significantly higher in subjects possessing the ALDH2(1)/ALDH2(1) genotype than in those having ALDH2(1)/ALDH2(2) or ALDH2(2)/ALDH2(2) genotypes. A significant difference was also found in the different genotypes of CYP2E1. Moreover, a borderline significant interaction between the ALDH2 and CYP2E1 genotypes on excessive alcohol consumption was observed, i.e., the group of subjects having the c2 allele of CYP2E1 had a higher frequency of EAC than those having c1/c1 genotypes in the genotype subgroup ALDH2(1)/ALDH2(1), whereas these were not found in the heterozygote and homozygote subgroups of the ALDH2(2) allele. Neither the independent nor interactive genetic effect of ADH2 on excessive alcohol consumption was obvious. In conclusion, Japanese men with the ALDH2(1)/ALDH2(1) genotype and the c2 allele of CYP2E1 are at higher risk of showing excessive alcohol consumption.
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Affiliation(s)
- F Sun
- Department of Hygiene, Kanazawa Medical University, Uchinada, Ishikawa, Japan.
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