1
|
Wu Z, Li Q, Zhu K, Zheng S, Hu H, Hou M, Qi L, Chen S, Xu Y, Zhao B, Yan C. Cancer Radiosensitization Nanoagent to Activate cGAS-STING Pathway for Molecular Imaging Guided Synergistic Radio/Chemo/Immunotherapy. Adv Healthc Mater 2024:e2303626. [PMID: 38387885 DOI: 10.1002/adhm.202303626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 02/04/2024] [Indexed: 02/24/2024]
Abstract
Immunotherapy has emerged as an innovative strategy with the potential to improve outcomes in cancer patients. Recent evidence indicates that radiation-induced DNA damage can activate the cyclic-GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway to enhance the antitumor immune response. Even so, only a small fraction of patients currently benefits from radioimmunotherapy due to the radioresistance and the inadequate activation of the cGAS-STING pathway. Herein, this work integrates hafnium oxide (HfO2 ) nanoparticles (radiosensitizer) and 7-Ethyl-10-hydroxycamptothecin (SN38, chemotherapy drug, STING agonist) into a polydopamine (PDA)-coated core-shell nanoplatform (HfO2 @PDA/Fe/SN38) to achieve synergistic chemoradiotherapy and immunotherapy. The co-delivery of HfO2 /SN38 greatly enhances radiotherapy efficacy by effectively activating the cGAS-STING pathway, which then triggers dendritic cells maturation and CD8+ T cells recruitment. Consequently, the growth of both primary and abscopal tumors in tumor-bearing mice is efficiently inhibited. Moreover, the HfO2 @PDA/Fe/SN38 complexes exhibit favorable magnetic resonance imaging (MRI)/photoacoustic (PA) bimodal molecular imaging properties. In summary, these developed multifunctional complexes have the potential to intensify immune activation to realize simultaneous cancer Radio/Chemo/Immunotherapy for clinical translation.
Collapse
Affiliation(s)
- Zede Wu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qiuyu Li
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Kai Zhu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Shuting Zheng
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Honglei Hu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Meirong Hou
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Li Qi
- Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Siwen Chen
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yikai Xu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Bingxia Zhao
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Experimental Education/Administration Center, School of Basic Medical Science, Southern Medical University, Guangzhou, 510515, China
| | - Chenggong Yan
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| |
Collapse
|
2
|
Xu R, Hou M, Zhou D, Liu Y, Xie L, Zeng S. Visualizable intracardiac flow pattern in fetuses with congenital heart defect: pilot study of blood speckle-tracking echocardiography. Ultrasound Obstet Gynecol 2023; 62:688-694. [PMID: 37161638 DOI: 10.1002/uog.26243] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/21/2023] [Accepted: 05/01/2023] [Indexed: 05/11/2023]
Abstract
OBJECTIVES Blood-flow pattern is an essential factor in cardiovascular development. Recently, blood speckle-tracking echocardiography (BST) based on high-frame-rate ultrasound has emerged as a promising technique for the assessment of blood-flow patterns and properties. The objectives of this study were to determine the feasibility of BST in the fetus and to assess intracardiac blood-flow patterns of fetuses with a congenital heart defect (CHD) using this technique. METHODS This was a prospective study consisting of 35 normal fetuses, 35 fetuses with left-sided obstructive lesion (LSOL) and 35 fetuses with right-sided obstructive lesion (RSOL). BST images of fetal intracardiac regions of interest (ROIs), including the left ventricle (LV), right ventricle (RV), ascending aorta (AAo), aortic arch (AA), descending aorta (DAo) and pulmonary artery (PA), were obtained and analyzed. The feasibility of BST was assessed, and blood-flow pattern and number of vortices in the ROIs were recorded. RESULTS The median gestational age of the fetuses was 24.7 weeks (range, 19.6-34.3 weeks). BST was feasible in 81.6% of cases, and the cut-off value of depth for an adequate BST image was ≤ 7.9 cm. There were no differences in the presence of vortex/turbulent blood flow in the LV or RV among the three groups. Vortex/turbulent blood flow in the AAo was detected in 0% (0/35), 14.3% (5/35) and 57.1% (20/35) of cases in the control, LSOL and RSOL groups, respectively. The respective values were 5.7% (2/35), 14.3% (5/35) and 51.4% (18/35) for the AA; 0% (0/35), 48.6% (17/35) and 0% (0/35) for the DAo; and 0% (0/35), 40.0% (14/35) and 51.4% (18/35) for the PA. With the exception of the DAo in the RSOL group, vortex/turbulent flow in the great artery ROIs was significantly more common in the LSOL and RSOL groups than in controls (P < 0.01). In the LSOL group, the number of vortices in the AAo, AA, DAo and PA was significantly greater compared with that in controls (P < 0.01). In the RSOL group, the number of vortices in the LV, AAo, AA and PA was significantly greater compared with that in controls (P < 0.01). CONCLUSIONS Fetuses with CHD were more likely to exhibit vortex/turbulent blood flow and increased number of vortices in the great arteries compared with healthy controls. Further research is needed to determine the biomechanical effect of blood-flow patterns, especially vortex flow, on fetal cardiovascular structure and function. © 2023 International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- R Xu
- Department of Ultrasound, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - M Hou
- Department of Ultrasound, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Cardiovascular Surgery, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - D Zhou
- Department of Ultrasound, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Y Liu
- Department of Ultrasound, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - L Xie
- Department of Cardiovascular Surgery, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - S Zeng
- Department of Ultrasound, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
3
|
Yang JH, Xue MJ, Zhang XL, Wei ZC, Shao LL, Shi Y, Hou M. [Efficacy of decitabine in patients with glucocorticoid-resistant primary immune thrombocytopenia: factors influencing treatment responses]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:567-571. [PMID: 37749037 PMCID: PMC10509621 DOI: 10.3760/cma.j.issn.0253-2727.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Indexed: 09/27/2023]
Abstract
Objective: This study aimed to evaluate the efficacy of decitabine (DAC) and identify factors influencing treatment responses in patients with primary immune thrombocytopenia (ITP) who had failed glucocorticoid therapy. Methods: Clinical data of 61 patients with glucocorticoid-resistant ITP who received DAC therapy (5 mg·m(-2)·d(-1)×3 d via intravenous infusion) for at least three cycles with 3-4-week intervals at the Department of Hematology, Qilu Hospital of Shandong University, from November 2015 to June 2021 were analyzed retrospectively. Results: The 61 patients comprised 20 males and 41 females, with a median age of 45 years (range: 15-81 years). Among them, 43 patients were glucocorticoid-dependent (glucocorticoid-dependent group), while 18 patients were glucocorticoid-resistant (glucocorticoid-resistant group). Following DAC treatment, 12 patients (19.67% ) achieved complete response (CR), and 16 patients (26.23% ) exhibited response (R), resulting in an overall response (OR) rate of 45.90% (28/61). Comparison between the OR group (n=28) and the non-response (NR) group (n=33) revealed significant differences in responses to glucocorticoids (dependent or resistant) and platelet counts before treatment (χ(2)=8.789, P=0.003; z=-2.416, P=0.016). The glucocorticoid-dependent group showed higher platelet counts than the glucocorticoid-resistant group after the second and third cycles of DAC treatment (P=0.032, 0.024). Moreover, the OR rates after the first, second, and third cycles of DAC treatment in the glucocorticoid-dependent group were all higher than those in the glucocorticoid-resistant group (P=0.042, P=0.012, P=0.029). A significant correlation was observed between glucocorticoid dependence and responses to DAC treatment (OR=9.213, 95% CI 1.937-43.820, P=0.005) . Conclusion: DAC demonstrates definitive efficacy with mild adverse effects in a subset of patients with glucocorticoid-resistant primary ITP. Glucocorticoid dependence and higher platelet counts before treatment are associated with a favorable response to DAC therapy.
Collapse
Affiliation(s)
- J H Yang
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - M J Xue
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - X L Zhang
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Z C Wei
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - L L Shao
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Y Shi
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - M Hou
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| |
Collapse
|
4
|
Lin DP, Wang MQ, Hou M, Peng LW, Wei WJ, Wang GK, Wang YG. [Clinical management and prognosis for descending necrotizing mediastinitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:565-571. [PMID: 37339896 DOI: 10.3760/cma.j.cn115330-20221104-00660] [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: 06/22/2023]
Abstract
Objective: To investigate the clinical characteristics, treatment experiences and prognostic factors for descending necrotizing mediastinitis (DNM). Methods: A retrospective analysis was performed on the data of 22 patients with DNM diagnosed and treated in Henan Provincial People's Hospital from January 2016 to August 2022, including 16 males and 6 females, aged 29-79 years. After admission, all patients underwent CT scanning of the maxillofacial, cervical, and thoracic regions to confirm their diagnoses. Emergency incision and drainage were performed. The neck incision was treated with continuous vacuum sealing drainage. According to the prognoses, the patients were divided into cure group and death group, and the prognostic factors were analyzed. SPSS 25.0 software was used to analyze the clinical data. Rusults: The main complaints were dysphagia (45.5%, 10/22) and dyspnea (50.0%, 11/22). Odontogenic infection accounted for 45.5% (10/22) and oropharyngeal infection accounted for 54.5% (12/22). There were 16 cases in the cured group and 6 cases in the death group, with a total mortality rate of 27.3%. The mortality rates of DNM typeⅠand typeⅡwere respectively 16.7% and 40%. Compared with the cured group, the death group had higher incidences for diabetes, coronary heart disease and septic shock (all P<0.05). There were statistically significant differences between the cure group and the death group in procalcitonin level (50.43 (137.64) ng/ml vs 2.92 (6.33) ng/ml, M(IQR), Z=3.023, P<0.05) and acute physiology and chronic health evaluation Ⅱ(APACHEⅡ) score (16.10±2.40 vs 6.75±3.19, t=6.524, P<0.05). Conclution: DNM is rare, with high mortality, high incidence of septic shock, and the increased procalcitonin level and APACHE Ⅱ score combined diabetes and coronary heart disease are the poor prognostic factors for DNM. Early incision and drainage combined with continuous vacuum sealing drainage technique is a better way to treat DNM.
Collapse
Affiliation(s)
- D P Lin
- Department of Oral and Maxillofacial Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - M Q Wang
- Department of Oral and Maxillofacial Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - M Hou
- Department of Oral and Maxillofacial Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - L W Peng
- Department of Oral and Maxillofacial Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - W J Wei
- Department of Oral and Maxillofacial Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - G K Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - Y G Wang
- Department of Oral and Maxillofacial Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| |
Collapse
|
5
|
Li GM, Gu WP, Hou M, Jia SQ, Wang YY, Bai LL, Yin JW, Zhou YM, Fu XQ, Lu JX, Wu Y. [Study on the features of Clostridioides difficile infection among diarrhea patients in Kunming from 2018 to 2020]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:624-628. [PMID: 37147836 DOI: 10.3760/cma.j.cn112338-20220712-00624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Objective: We analyze the characteristics of Clostridioides difficile (C. difficile) infection among diarrhea patients in Kunming from 2018 to 2020 and provide evidence for follow-up surveillance and prevention. Methods: A total of 388 fecal samples of diarrhea patients from four sentinel hospitals in Yunnan Province from 2018 to 2020 were collected. Real-time quantitative PCR was used to detect the fecal toxin genes of C. difficile. The positive fecal samples isolated the bacteria, and isolates were identified by mass spectrometry. The genomic DNA of the strains was extracted for multi-locus sequence typing (MLST). The fecal toxin, strain isolation, and clinical patient characteristics, including co-infection with other pathogens, were analyzed. Results: Among the 388 fecal samples, 47 samples with positive reference genes of C. difficile were positive, with a total positive rate of 12.11%. There were 4 (8.51%) non-toxigenic and 43 (91.49%) toxigenic ones. A total of 18 strains C. difficile were isolated from 47 positive specimens, and the isolation rate of positive specimens was 38.30%. Among them, 14 strains were positive for tcdA, tcdB, tcdC, tcdR, and tcdE. All 18 strains of C. difficile were negative for binary toxins. The MLST results showed 10 sequence types (ST), including 5 strains of ST37, accounting for 27.78%; 2 strains of ST129, ST3, ST54, and ST2, respectively; and 1 strain of ST35, ST532, ST48, ST27, and ST39, respectively. Fecal toxin gene positive (tcdB+) results were statistically associated with the patient's age group and with or without fever before the visit; positive isolates were only statistically associated with the patient's age group. In addition, some C. difficile patients have co-infection with other diarrhea-related viruses. Conclusions: The infection of C. difficile in diarrhea patients in Kunming is mostly toxigenic strains, and the high diversity of strains was identified using the MLST method. Therefore, the surveillance and prevention of C. difficile should be strengthened.
Collapse
Affiliation(s)
- G M Li
- Microbiology Testing Department, Kunming Center for Disease Control and Prevention, Kunming 650228, China
| | - W P Gu
- Division of Acute Infectious Diseases, Yunnan Provincial Center for Disease Control and Prevention, Kunming 650022, China
| | - M Hou
- Microbiology Testing Department, Kunming Center for Disease Control and Prevention, Kunming 650228, China
| | - S Q Jia
- Division of Acute Infectious Diseases, Yunnan Provincial Center for Disease Control and Prevention, Kunming 650022, China
| | - Y Y Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - L L Bai
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J W Yin
- Division of Acute Infectious Diseases, Yunnan Provincial Center for Disease Control and Prevention, Kunming 650022, China
| | - Y M Zhou
- Division of Acute Infectious Diseases, Yunnan Provincial Center for Disease Control and Prevention, Kunming 650022, China
| | - X Q Fu
- Division of Acute Infectious Diseases, Yunnan Provincial Center for Disease Control and Prevention, Kunming 650022, China
| | - J X Lu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Wu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| |
Collapse
|
6
|
Zheng S, Hu H, Hou M, Zhu K, Wu Z, Qi L, Xia H, Liu G, Ren Y, Xu Y, Yan C, Zhao B. Proton pump inhibitor-enhanced nanocatalytic ferroptosis induction for stimuli-responsive dual-modal molecular imaging guided cancer radiosensitization. Acta Biomater 2023; 162:72-84. [PMID: 36931419 DOI: 10.1016/j.actbio.2023.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 02/19/2023] [Accepted: 03/08/2023] [Indexed: 03/17/2023]
Abstract
Although radiotherapeutic efficiency has been revealed to be positively correlated with ferroptosis, the neutral/alkaline cytoplasm pH value of tumor cells remains an intrinsic challenge for efficient Fenton/Fenton-like reaction-based ferroptosis induction. Herein, PEGylated hollow mesoporous organosilica nanotheranostics (HMON)-GOx@MnO2 nanoparticles (HGMP NPs) were designed as a ferroptosis inducer, which could specifically release Mn2+ in tumor cells to activate the Fenton-like reaction for ferroptosis induction. Proton pump inhibitors (PPIs) were synchronously administered for cytoplasm pH level regulation by inhibiting V-H+-ATPases activity, enhancing Fenton-like reaction-based ferroptosis induction. Moreover, reactive oxygen species production was facilitated via the glucose oxidase triggered cascade catalytic reaction by utilizing intracellular β-D-glucose for H2O2 self-supply and generation of additional cytoplasm H+. The PPI enhanced ferroptosis inducing nanosystem effectively inhibited tumor growth both in vitro and in vivo for tumor-specific ferroptosis induction and radiotherapy sensitization, suggesting that PPI administration could be an efficient adjuvant to reinforce Fenton/Fenton-like reaction-based ferroptosis induction for radiosensitization. STATEMENT OF SIGNIFICANCE: The cytoplasm pH value of tumor cells is typically neutral to alkaline, which is higher than that of the Fenton/Fenton-like reaction desired acidic environments, hindering its efficiency. In this study, PEGylated hollow mesoporous organosilica nanotheranostics (HMON)-GOx@MnO2 nanoparticles were synthesized as a ferroptosis inducer, which could specifically release Mn2+ via depleting glutathione and then activate the Fenton-like reaction in the tumor microenvironment. The glucose oxidase was applied for H2O2 self-supply and addition of cytoplasm H+ to further boost the Fenton-like reaction. We found that proton pump inhibitors (PPIs) increased intracellular acidification by inhibiting the activity of V-H+-ATPases to enhance the Fenton reaction-based ferroptosis induction, suggesting PPIs administration could be a feasible strategy to reinforce ferroptosis induction for radiosensitization.
Collapse
Affiliation(s)
- Shuting Zheng
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China; Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Honglei Hu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China; Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Meirong Hou
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China; Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Kai Zhu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China; Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Zede Wu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China; Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Li Qi
- Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, PR China
| | - Hui Xia
- Institute of Electrical Engineering Chinese Academy of Sciences, Beijing 100190, PR China
| | - Guoqiang Liu
- Institute of Electrical Engineering Chinese Academy of Sciences, Beijing 100190, PR China
| | - Yunyan Ren
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Yikai Xu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China.
| | - Chenggong Yan
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China.
| | - Bingxia Zhao
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, PR China; Experiment Education/Administration Center, School of Basic Medical Science, Southern Medical University, Guangzhou 510515, PR China.
| |
Collapse
|
7
|
Goldman RD, Hart RJ, Bone JN, Seiler M, Olson PG, Keitel K, Manzano S, Gualco G, Krupik D, Schroter S, Weigert RM, Chung S, Thompson GC, Muhammad N, Shah P, Gaucher NO, Hou M, Griffiths J, Lunoe MM, Evers M, Pharisa Rochat C, Nelson CE, Gal M, Baumer-Mouradian SH. Willingness to vaccinate children against COVID-19 declined during the pandemic. Vaccine 2023; 41:2495-2502. [PMID: 36889992 PMCID: PMC9977620 DOI: 10.1016/j.vaccine.2023.02.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 02/08/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023]
Abstract
OBJECTIVES To document the level of vaccine hesitancy in caregivers' of children younger than 12 years of age over the course of the pandemic in Pediatric Emergency Departments (ED). Study design Ongoing multicenter, cross-sectional survey of caregivers presenting to 19 pediatric EDs in the USA, Canada, Israel, and Switzerland during first months of the pandemic (phase1), when vaccines were approved for adults (phase2) and most recently when vaccines were approved for children (phase3). RESULTS Willingness to vaccinate rate declined over the study period (59.7%, 56.1% and 52.1% in the three phases). Caregivers who are fully vaccinated, who have higher education, and those worried their child had COVID-19 upon arrival to the ED, were more likely to plan to vaccinate in all three phases. Mothers were less likely to vaccinate early in the pandemic, but this hesitancy attenuated in later phases. Older caregivers were more willing to vaccinate, and caregivers of older children were less likely to vaccinate their children in phase 3. During the last phase, willingness to vaccinate was lowest in those who had a primary care provider but did not rely on their advice for medical decisions (34%). Those with no primary care provider and those who do and rely on their medical advice, had similar rates of willingness to vaccinate (55.1% and 52.1%, respectively). CONCLUSIONS COVID-19 vaccine hesitancy is widespread and growing over time, and public health measures should further try to leverage identified factors associated with hesitancy in order to enhance vaccination rates among children.
Collapse
Affiliation(s)
- R D Goldman
- The Pediatric Research in Emergency Therapeutics (PRETx) Program, Division of Emergency Medicine, Department of Pediatrics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada.
| | - R J Hart
- Division of Pediatric Emergency Medicine, Department of Pediatrics, University of Louisville, Louisville, KY, USA
| | - J N Bone
- Research Informatics, BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - M Seiler
- Emergency Department, University Children's Hospital Zurich, Zurich, Switzerland
| | - P G Olson
- Department of Pediatrics, Division of Emergency and Transport Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - K Keitel
- Pediatric Emergency Medicine, Inselspital University Hospital of Bern, Bern, Switzerland
| | - S Manzano
- Department of Pediatric Emergency Medicine, Geneva Children's Hospital, Geneva University Hospitals, and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - G Gualco
- Pediatric Emergency Department, Pediatric Institute of Italian part of Switzerland, Ticino, Switzerland
| | - D Krupik
- Pediatric Emergency Unit, Ziv Medical Center, and Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - S Schroter
- Division of Pediatric Emergency Medicine, Department of Pediatrics, University of California, San Diego, La Jolla, California and Rady Children's Hospital San Diego, San Diego, CA, USA
| | - R M Weigert
- Department of Pediatric Emergency Medicine, Children's Minnesota, Minneapolis, MN, USA
| | - S Chung
- Pediatric Emergency Medicine, Oregon Health & Science University, Portland, OR, USA
| | - G C Thompson
- Pediatrics and Emergency Medicine, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - N Muhammad
- Division of Pediatric Emergency Medicine, Advocate Children's Hospital, Oak Lawn, IL, USA
| | - P Shah
- Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas, USA
| | - N O Gaucher
- Department of Pediatric Emergency Medicine and Research Center, Department of Pediatrics, CHU Sainte-Justine, 3175 Ch Cote Sainte-Catherine, Montreal, Canada
| | - M Hou
- The Pediatric Research in Emergency Therapeutics (PRETx) Program, Division of Emergency Medicine, Department of Pediatrics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - J Griffiths
- The Pediatric Research in Emergency Therapeutics (PRETx) Program, Division of Emergency Medicine, Department of Pediatrics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - M M Lunoe
- Division of Pediatric Emergency Medicine, UPMC Children's Hospital of Pittsburgh, PA, USA
| | - M Evers
- Division of Pediatric Pediatric Emergency Medicine, UH Rainbow Babies and Children's Hospital, 11100 Euclid Ave, Cleveland, OH, USA
| | - C Pharisa Rochat
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Fribourg Hospital HFR, Fribourg, Switzerland
| | - C E Nelson
- Division of Emergency Medicine, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Wilmington, DE, USA
| | - M Gal
- Pediatric Emergency Department, Kaplan Medical Centre, Rehovot, Israel
| | | | | |
Collapse
|
8
|
Ouyang TB, Chen H, Liu SQ, Chen XC, Yang XS, Hou M, Zhao ZY. Development of a removable three-dimensional magnetic probe system for measuring field null on the NanChang Spherical Tokamak. Rev Sci Instrum 2023; 94:013509. [PMID: 36725596 DOI: 10.1063/5.0125948] [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: 09/14/2022] [Accepted: 12/27/2022] [Indexed: 06/18/2023]
Abstract
The field null configuration of a poloidal magnetic field is one of the critical conditions for achieving Ohmic breakdown during the initial discharge of a new tokamak. The issue of the Ohmic breakdown on the NanChang Spherical Tokamak (NCST) is still not solved satisfactorily although plasma currents of about 2 kA were found. Hence, a removable three-dimensional magnetic probe (RTMP) system consisting of 25 magnetic probes was designed, calibrated, and constructed on the NCST to evaluate the field null inside a vacuum vessel. After repeated tests, the RTMP system exhibited outstanding performance in terms of accuracy and stability with errors of about 1%. Meanwhile, the RTMP system successfully measured the toroidal field (TF) coil ripples at the magnetic axis. During experiments, the stray field arising from the TF coil implied a strong link between the flexible connection of the TF coil and the Ohmic breakdown on the NCST. After the field null was effectively modified by using a new flexible connection of the TF coil and controlling the induced current in the poloidal field coil, the NCST tokamak reproducibly obtained 20 kA plasma current with the limiter configuration during the plasma current flat-top phase.
Collapse
Affiliation(s)
- T B Ouyang
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - H Chen
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - S Q Liu
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - X C Chen
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - X S Yang
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - M Hou
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - Z Y Zhao
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| |
Collapse
|
9
|
Affiliation(s)
- G J Luo
- Department of Rehabilitation, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - M Hou
- Department of Rehabilitation, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - A Y Yuan
- Department of Rehabilitation, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - Q Y Liu
- Department of Rehabilitation, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - J Chen
- Department of Rehabilitation, Qingdao Women and Children's Hospital, Qingdao 266034, China
| |
Collapse
|
10
|
Hou M. Optimal reduction and conversion of range-difference measurements for positioning. PLoS One 2022; 17:e0273617. [PMID: 36037206 PMCID: PMC9423659 DOI: 10.1371/journal.pone.0273617] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 08/12/2022] [Indexed: 11/18/2022] Open
Abstract
For positioning an object with m references, there are m−1 linearly independent range differences and measuring them is essential. However, none of m(m−1) possible range differences should be considered redundant unless their measurements are free of noise and locations of the references are exactly known. From all available range-difference measurements, m range measurements are obtained for positioning based on the least squares principle. The problem formulation treats missing and weighted range-difference measurements simultaneously. The exact relationships among several formulations of least squares positioning are established. A numerical example illustrates the results.
Collapse
Affiliation(s)
- M. Hou
- Department of Engineering, University of Hull, Hull, United Kingdom
- * E-mail:
| |
Collapse
|
11
|
Ren Z, Li Z, Zhang T, Fang W, Hu S, Pan H, Yen C, Hou J, Chen Y, Shao G, Hsu C, Bai Y, Meng Z, Hou M, Xie C, Liu Y, Wu J, Li B, Chica-Duque S, Cheng A. P-25 Tislelizumab monotherapy for patients with previously treated advanced hepatocellular carcinoma (HCC): RATIONALE-208 Chinese subpopulation. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
12
|
Melero I, Yau T, Kang Y, Kim T, Santoro A, Sangro B, Kudo M, Hou M, Matilla A, Tovoli F, Knox J, He A, El-Rayes B, Acosta-Rivera M, Lim H, Soleymani S, Yao J, Neely J, Tschaika M, Hsu C, El-Khoueiry A. SO-12 Nivolumab (NIVO) plus ipilimumab (IPI) combination therapy in patients with advanced hepatocellular carcinoma (aHCC): 5-year results from CheckMate 040. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
13
|
Huang QS, Xue J, Liu FQ, Chen Q, Zhang GC, Sun XY, Wang CC, Yang LP, Li YY, Wang QF, Peng J, Hou M, Huang XJ, Zhang XH. S290: ATRA CAN CORRECT DEFECTIVE HIF-1Α/S1P AXIS-MEDIATED CYTOSKELETAL REORGANIZATION IN PROPLATELET FORMATION OF ITP. Hemasphere 2022. [DOI: 10.1097/01.hs9.0000844052.04436.5f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
14
|
Hou M, Zhang LJ, Liu J, Hu HX, Zhao YL. CircRIP2 aggravates the deterioration of colorectal carcinoma by negatively regulating CBFB. Eur Rev Med Pharmacol Sci 2022; 26:3514-3521. [PMID: 35647832 DOI: 10.26355/eurrev_202205_28846] [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 This study aims to detect expression pattern and clinical significance of circRIP2 in colorectal carcinoma (CRC). In the meantime, the regulatory effect of circRIP2 on CRC cell functions is clarified. PATIENTS AND METHODS Relative levels of circRIP2 in 45 cases of CRC tissues and paracancerous tissues were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Its clinical significance in predicting pathological manifestations of CRC was analyzed. In vitro regulation of circRIP2 on proliferative and migratory abilities of Sw620 and HCT-116 cells was assessed by cell counting kit-8 (CCK-8), 5-Ethynyl-2'-deoxyuridine (EdU) and transwell assay, respectively. Dual-Luciferase reporter assay and rescue experiments were conducted to reveal the interaction between circRIP2 and its target gene CBFB, as well as their co-regulation on CRC cell functions. At last, in vivo regulation of circRIP2 on CRC growth in nude mice implanted with HCT-116 cells was explored. RESULTS CircRIP2 was upregulated in these samples of CRC tissues and cell lines. High level of circRIP2 predicted advanced staging, and high risk of distant metastasis of CRC. In vitro knockdown of circRIP2 weakened proliferative and migratory abilities in Sw620 and HCT-116 cells. CBFB was downregulated in CRC tissues, which was negatively regulated by circRIP2 as its target gene. The attenuated proliferative and migratory abilities in Sw620 and HCT-116 cells with circRIP2 knockdown were abolished by co-silence of circRIP2 and CBFB. Moreover, in vivo knockdown of circRIP2 slowed down CRC growth in nude mice, and upregulated positive expression of CBFB in xenografted CRC tissues. CONCLUSIONS CircRIP2 is a potential indicator for predicting tumor staging and distant metastasis of CRC. It aggravates the deterioration of CRC through negatively regulating CBFB.
Collapse
Affiliation(s)
- M Hou
- Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China.
| | | | | | | | | |
Collapse
|
15
|
Hou M, Kambhampati C. Locally fitting hyperplanes to high-dimensional data. Neural Comput Appl 2022. [DOI: 10.1007/s00521-022-06909-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AbstractProblems such as data compression, pattern recognition and artificial intelligence often deal with a large data sample as observations of an unknown object. An effective method is proposed to fit hyperplanes to data points in each hypercubic subregion of the original data sample. Corresponding to a set of affine linear manifolds, the locally fitted hyperplanes optimally approximate the object in the sense of least squares of their perpendicular distances to the sample points. Its effectiveness and versatility are illustrated through approximation of nonlinear manifolds Möbius strip and Swiss roll, handwritten digit recognition, dimensionality reduction in a cosmological application, inter/extrapolation for a social and economic data set, and prediction of recidivism of criminal defendants. Based on two essential concepts of hyperplane fitting and spatial data segmentation, this general method for unsupervised learning is rigorously derived. The proposed method requires no assumptions on the underlying object and its data sample. Also, it has only two parameters, namely the size of segmenting hypercubes and the number of fitted hyperplanes for user to choose. These make the proposed method considerably accessible when applied to solving various problems in real applications.
Collapse
|
16
|
Hu H, Zheng S, Hou M, Zhu K, Chen C, Wu Z, Qi L, Ren Y, Wu B, Xu Y, Yan C, Zhao B. Functionalized Au@Cu-Sb-S Nanoparticles for Spectral CT/Photoacoustic Imaging-Guided Synergetic Photo-Radiotherapy in Breast Cancer. Int J Nanomedicine 2022; 17:395-407. [PMID: 35115774 PMCID: PMC8800589 DOI: 10.2147/ijn.s338085] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 01/06/2022] [Indexed: 11/23/2022] Open
Abstract
Background Radiotherapy (RT) is clinically well-established cancer treatment. However, radioresistance remains a significant issue associated with failure of RT. Phototherapy-induced radiosensitization has recently attracted attention in translational cancer research. Methods Cu-Sb-S nanoparticles (NPs) coated with ultra-small Au nanocrystals (Au@Cu-Sb-S) were synthesized and characterized. The biosafety profiles, absorption of near-infrared (NIR) laser and radiation-enhancing effect of the NPs were evaluated. In vitro and in vivo spectral computed tomography (CT) imaging and photoacoustic (PA) imaging were performed in 4T1 breast cancer-bearing mice. The synergetic radio-phototherapy was assessed by in vivo tumor inhibition studies. Results Au@Cu-Sb-S NPs were prepared by in situ growth of Au NCs on the surface of Cu-Sb-S NPs. The cell viability experiments showed that the combination of Au@Cu-Sb-S+NIR+RT was significantly more cytotoxic to tumor cells than the other treatments at concentrations above 25 ppm Sb. In vitro and in vivo spectral CT imaging demonstrated that the X-ray attenuation ability of Au@Cu-Sb-S NPs was superior to that of the clinically used Iodine, particularly at lower KeV levels. Au@Cu-Sb-S NPs showed a concentration-dependent and remarkable PA signal brightening effect. In vivo tumor inhibition studies showed that the prepared Au@Cu-Sb-S NPs significantly suppressed tumor growth in 4T1 breast cancer-bearing mice treated with NIR laser irradiation and an intermediate X-ray dose (4 Gy). Conclusion These results indicate that Au@Cu-Sb-S integrated with spectral CT, PA imaging, and phototherapy-enhanced radiosensitization is a promising multifunctional theranostic nanoplatform for clinical applications.
Collapse
Affiliation(s)
- Honglei Hu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Shuting Zheng
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Meirong Hou
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Kai Zhu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Chuyao Chen
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Zede Wu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Li Qi
- Guangdong Provincial Key Laboratory of Medical Image Processing, Guangdong Province Engineering Laboratory for Medical Imaging and Diagnostic Technology, School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Yunyan Ren
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Bin Wu
- Institute of Respiratory Diseases, Respiratory Department, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, People’s Republic of China
| | - Yikai Xu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Chenggong Yan
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Bingxia Zhao
- Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, People’s Republic of China
- Experimental Education/Administration Center, School of Basic Medical Science, Southern Medical University, Guangzhou, 510515, People’s Republic of China
- Correspondence: Bingxia Zhao; Yikai Xu, Tel +86 20 61647272; +86 20 62787333, Email ;
| |
Collapse
|
17
|
Lu NN, Ma Y, Hou M, Zhao ZG. The function of floral traits and phenotypic selection in Aconitum gymnandrum (Ranunculaceae). Plant Biol (Stuttg) 2021; 23:931-938. [PMID: 34396652 DOI: 10.1111/plb.13305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
Floral evolution in angiosperms is thought to be driven by pollinator-mediated selection. Understanding flower integration and adaptation requires resolving the additive and nonadditive contributions of floral pollinator attraction and pollination efficiency traits to fitness components. In this study, a flower manipulation experiment with a factorial design was used to study the adaptive significance of galea height (a putative attraction trait) and entrance width (a putative efficiency trait) in Aconitum gymnandrum Maxim. flowers. Simultaneously, phenotypic selection analysis was conducted to examine selection by pollinators on galea height, entrance width, nectar production and plant height. Increased galea height increased the pollinator visitation rate, which confirmed its attractiveness function. Increasing floral entrance width by spreading the lower sepals increased the seed number per fruit without affecting pollinator visitation. This suggests a pollination efficiency role for the entrance width. The phenotypic selection analysis, however, did not provide evidence of pollinator-mediated selection for either of these traist, but it did for plant height. According to the manipulation treatment and correlational selection results, the combined variation in galea height and entrance width of A. gymnandrum flowers did not have nonadditive effects on female reproductive success. This study demonstrated the adaptive value of A. gymnandrum flowers through manipulation of an attractiveness trait and an efficiency trait. However, neither trait was associated with pollinator-mediated selection. A combination of manipulating traits and determining current phenotypic selection could help to elucidate the mechanism of selection on floral traits involved in different functions and flower integration.
Collapse
Affiliation(s)
- N-N Lu
- School of Life Science, North-West Normal University, Lanzhou, China
| | - Y Ma
- State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - M Hou
- State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Z-G Zhao
- State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, China
| |
Collapse
|
18
|
Hou M, Fagan MJ. Assessments of bilateral asymmetry with application in human skull analysis. PLoS One 2021; 16:e0258146. [PMID: 34614014 PMCID: PMC8494363 DOI: 10.1371/journal.pone.0258146] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 09/21/2021] [Indexed: 11/19/2022] Open
Abstract
As a common feature, bilateral symmetry of biological forms is ubiquitous, but in fact rarely exact. In a setting of analytic geometry, bilateral symmetry is defined with respect to a point, line or plane, and the well-known notions of fluctuating asymmetry, directional asymmetry and antisymmetry are recast. A meticulous scheme for asymmetry assessments is proposed and explicit solutions to them are derived. An investigation into observational errors of points representing the geometric structure of an object offers a baseline reference for asymmetry assessment of the object. The proposed assessments are applicable to individual, part or all point pairs at both individual and collective levels. The exact relationship between the developed treatments and the widely used Procrustes method in asymmetry assessment is examined. An application of the proposed assessments to a large collection of human skull data in the form of 3D landmark coordinates finds: (a) asymmetry of most skulls is not fluctuating, but directional if measured about a plane fitted to shared landmarks or side landmarks for balancing; (b) asymmetry becomes completely fluctuating if one side of a skull could be slightly rotated and translated with respect to the other side; (c) female skulls are more asymmetric than male skulls. The methodology developed in this study is rigorous and transparent, and lays an analytical base for investigation of structural symmetries and asymmetries in a wide range of biological and medical applications.
Collapse
Affiliation(s)
- M. Hou
- Department of Engineering, Medical and Biological Engineering, Faculty of Science & Engineering, University of Hull, Hull, United Kingdom
| | - M. J. Fagan
- Department of Engineering, Medical and Biological Engineering, Faculty of Science & Engineering, University of Hull, Hull, United Kingdom
| |
Collapse
|
19
|
Zhu P, Gan GF, Hou M, Pan C, Qiu HB. [The clinical application of esophageal pressure in critical patients]. Zhonghua Nei Ke Za Zhi 2021; 60:929-931. [PMID: 34551487 DOI: 10.3760/cma.j.cn112138-20201225-01050] [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)
- P Zhu
- Department of Critical Care Medicine, Affiliated Hospital of Qinghai University, Xining 810001, China
| | - G F Gan
- Department of Critical Care Medicine, Affiliated Hospital of Qinghai University, Xining 810001, China
| | - M Hou
- Department of Emergency Intensive Care Unit, Affiliated Hospital of Qinghai University, Xining 810001, China
| | - C Pan
- Department of Critical Care Medicine, Affiliated Hospital of Qinghai University, Xining 810001, China Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Nanjing 210009, China
| | - H B Qiu
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Nanjing 210009, China
| |
Collapse
|
20
|
Zhong H, Cheng S, Zhang X, Xu B, Chen J, Jiang X, Hu Y, Cui G, Wei J, Qian W, Huang X, Hou M, Yan F, Wang X, Song Y, Hu J, Liu Y, Ma X, Li F, Wu C, Chen J, Yu L, Bai O, Xu J, Zhu Z, Liu L, Zhou X, Huang L, Tong Y, Niu T, Wu D, Xiong J, Zhang H, Wang C, Ouyang B, Yi H, Cai G, Li B, Liu J, Li Z, Xiao R, Wang L, Jiang Y, Liu Y, Zheng X, Xu P, Huang H, Wang L, Chen S, Zhao W. ESA VERSUS MESA WITH SANDWICHED RADIOTHERAPY IN PATIENTS WITH EARLY‐STAGE NATURAL KILLER/T‐CELL LYMPHOMA: A MULTICENTRE, RANDOMISED, PHASE 3, NON‐INFERIORITY TRIAL. Hematol Oncol 2021. [DOI: 10.1002/hon.52_2879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
21
|
Wang RT, Liu XG, Hou Y, Hou M. [A physician-patient survey for primary immune thrombocytopenia: Chinese subgroup analysis of I-WISh International Survey]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:369-375. [PMID: 34218578 PMCID: PMC8293006 DOI: 10.3760/cma.j.issn.0253-2727.2021.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Indexed: 01/07/2023]
Abstract
Objective: To explore the impact of primary immune thrombocytopenia (ITP) on patient's quality of life and emotional well-being, and both the physician and the patient's perception of the treatment. Methods: This study was a Chinese Subgroup analysis of I-WISh survey, including 102 physicians and 286 ITP patients invited to complete the survey. A descriptive analysis of the results of the physician-patient survey was conducted in three parts: symptoms, impact of ITP on quality of life and emotion, and treatment perception. Results: Fatigue and anxiety about unstable platelet counts were the main symptoms after treatment. Physicians reported inadequate frequency of anxiety and fatigue. In terms of quality of life, over 90.0% of patients thought that ITP had a negative impact on their working life/studies, daily tasks, energy, capacity to exercise, and sexual life. With regard to emotion, 60.8% (174/286) patients thought that ITP had a greater impact on overall emotion, concerns about the fluctuation in platelet level (74.8%, 214/286) , disease itself (71.7%, 205/286) and disease progression (68.9%, 197/286) were the common issues, which were similar to the physicians' evaluations. Both physicians and patients agreed that reducing spontaneous bleeding, maintaining a healthy blood count and improving quality of life were the top three important treatment goals. Physicians considered reducing bleeding risk as the most important factor for decision making. Physicians believed that patients receiving glucocorticoid (54.9%, 56/102) were most likely to succeed in achieving sustained response while patients had the best response to thrombopoietin receptor agonist (TPO-RA) treatment, with about 83.9% (240/286) being satisfied with the overall effectiveness of TPO-RA. Conclusions: Physicians in the I-WISh Chinese subgroup had low awareness on patients' fatigue and anxiety. The quality of life and emotion of patients were significantly negatively affected by ITP. There are differences in the selection of treatments between physicians and patients, suggesting that physicians should raise concerns about the quality of life of ITP patients and make individualized treatment options through physician-patient shared decisions.
Collapse
Affiliation(s)
- R T Wang
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| | - X G Liu
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Y Hou
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| | - M Hou
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| |
Collapse
|
22
|
Hou M, Zhang YP, Liu QY, Niu HL, Zhang MY, Yang R, Lei QQ, Gong YB. [Clinicopathological study of infantile hemangioma]. Zhonghua Bing Li Xue Za Zhi 2021; 50:508-510. [PMID: 33915660 DOI: 10.3760/cma.j.cn112151-20201204-00901] [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)
- M Hou
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Y P Zhang
- Cancer Hospital Affiliated to Zhengzhou University, Zhengzhou 450000, China
| | - Q Y Liu
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - H L Niu
- Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
| | - M Y Zhang
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - R Yang
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Q Q Lei
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Y B Gong
- Department of Hemangioma, Henan Provincial People's Hospital, Zhengzhou 450003, China
| |
Collapse
|
23
|
Zheng XY, Liang AB, Yang XZ, Fu JF, Hou M, Sun AN, Lu H, Jin J, Hu JD. [Pharmacokinetic study of domestic caspofungin compared with original caspofungin for empirical therapy in patients with persistent fever and agranulocytosis]. Zhonghua Xue Ye Xue Za Zhi 2021; 41:1031-1034. [PMID: 33445852 PMCID: PMC7840557 DOI: 10.3760/cma.j.issn.0253-2727.2020.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- X Y Zheng
- Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fujian Provincial Key Laboratory of Hematology, Fuzhou 350001, China
| | - A B Liang
- Department of Hematology, Tongji Hospital, Tongji University, Shanghai 200065, China
| | - X Z Yang
- Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fujian Provincial Key Laboratory of Hematology, Fuzhou 350001, China
| | - J F Fu
- Department of Hematology, Tongji Hospital, Tongji University, Shanghai 200065, China
| | - M Hou
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| | - A N Sun
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - H Lu
- Department of Hematology, Jiangsu Province Hospital, Nanjing 210029, China
| | - J Jin
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - J D Hu
- Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fujian Provincial Key Laboratory of Hematology, Fuzhou 350001, China
| |
Collapse
|
24
|
Zhao HG, Liu F, Qin TJ, Bai H, Hou M, Yu K, Hu Y, Liu L, Li Y, Yu L. [Efficacy and safety of generic azacitidine in Chinese patients with higher-risk myelodysplastic syndromes: a multicenter, prospective, single-arm study]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:811-817. [PMID: 33190437 PMCID: PMC7656073 DOI: 10.3760/cma.j.issn.0253-2727.2020.10.004] [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] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Indexed: 11/29/2022]
Abstract
Objective: To evaluate the efficacy, safety, and pharmacokinetics of the generic azacitidine in Chinese patients with higher-risk myelodysplastic syndromes(MDS). Methods: Between October 2013 and 2016, 72 patients were eligible for enrollment at 9 sites from China received generic subcutaneous azacitidine 75 mg·m(-2)·d(-1) for 7 days per 28-day cycle, for ≥6 cycles. Pharmacokinetic blood samples were collected on day 1 of a single-dose. Results: For each patient at cycle 6 or at the time of study discontinuation, whichever came first, the overall response rate, which included complete remission (CR)and partial remission(PR), was 6.9%(5/72), the rate of patients who had the best effect with CR or PR during the treatment was 12.5%(9/72). Patients who were dependent on red-blood-cell transfusions and platelet transfusions at baseline became transfusion independent were 46.3%(19/41)and 41.2% (7/17), respectively. The median time of treatment was 6 cycles, and the median OS was 16.1 months (95%CI 10.9-20.6 months). For 36 patients(50%)received treatment at ≥6 cycles, and the median OS was 22.3 months(95%CI 16.1- not evaluative). Most common grade Ⅲ-Ⅳ hematologic treatment-emergent adverse events were neutropenia(55%), leukopenia(47%), and thrombocytopenia(61%). Pharmacokinetic profiles were similar for generic and original azacitidine in Chinese patients. Conclusion: Generic azacitidine treatment was favorable and safe and can be used as a standard treatment for patients with higher-risk MDS.
Collapse
Affiliation(s)
- H G Zhao
- Department of Hematology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - F Liu
- Department of Hematology, Xiyuan Hospital, Chinese Academy of Medical Sciences, Beijing 100091, China
| | - T J Qin
- National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - H Bai
- Department of Hematology, Chinese People's Liberation Army Joint Logistics Support Unit 940 Hospital, Lanzhou 730050, China
| | - M Hou
- Department of Hematology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - K Yu
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Y Hu
- Department of Hematology, Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022, China
| | - L Liu
- Department of Hematology, Tangdu Hospital, Air Force Medical University, Xi'an 710038, China
| | - Y Li
- Department of Hematology, Chinese PLA General Hospital, Beijing 100853, China
| | - L Yu
- Department of Hematology, Chinese PLA General Hospital, Beijing 100853, China; Department of Hematology-Oncology, International Cancer Center, Shenzhen University General Hospital, Shenzhen University Health Science Center, Shenzhen 518060, China
| |
Collapse
|
25
|
Liu Q, Hua M, Yan S, Zhang C, Wang R, Yang X, Han F, Hou M, Ma D. Immunorelated gene polymorphisms associated with acute myeloid leukemia. Clin Exp Immunol 2020; 201:266-278. [PMID: 32349161 PMCID: PMC7419888 DOI: 10.1111/cei.13446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 02/17/2020] [Revised: 04/14/2020] [Accepted: 04/23/2020] [Indexed: 12/11/2022] Open
Abstract
Although the pathogenesis of acute myeloid leukemia (AML) is still unknown, accumulating evidence has revealed that immune response plays a vital part in the pathogenesis. Here, we investigated the involvement of 21 single nucleotide polymorphisms (SNPs) of immunorelated genes, including cytokines [interleukin (IL)-2, IL-4, IL-9, IL-12A, IL-22, interferon (IFN-α) and transforming growth factor (TGF)-β1], transcriptional regulatory genes (TBX21, STAT1, STAT3, STAT5B, STAT6, GATA3, FOXP3 and IRF4) and others (IL2RA, IL6R, NFKBIA) in 269 AML in-patients and 200 healthy controls. Furthermore, we analyzed the relationship between the SNPs and clinical characteristics. Immunorelated SNP genotyping was performed on the Sequenom MassARRAY iPLEX platform. All the SNPs in healthy controls were consistent with Hardy-Weinberg equilibrium. All final P-values were adjusted by Bonferroni multiple testing. Our results showed that IL-22 (rs2227491) was significantly associated with the white blood cell (WBC) counts. Signal transducer and activator of transcription 5B (STAT-5B) (rs6503691) showed a close relationship with the recurrent genetic abnormalities in patients with AML. We verified the negatively independent effect of age and risk of cytogenetics on overall survival (OS). More importantly, the GG genotype of IL-12A (rs6887695) showed a negative impact on AML prognosis independently. Furthermore, the relative expression of IL-12 was decreased in GG genotype, no matter under a co-dominant or recessive model. However, no correlation was observed between the SNPs mentioned above and disease susceptibility, risk stratification and survival. Our findings suggest that immunorelated gene polymorphisms are associated with prognosis in AML, which may perform as novel inspection targets for AML patients.
Collapse
Affiliation(s)
- Q. Liu
- Department of HematologyQilu HospitalShandong UniversityJinanChina
- Department of HematologyQilu Hospital, Cheeloo College of MedicineShandong UniversityJinanChina
- Department of HematologyTaian Central HospitalTaianShandongChina
| | - M. Hua
- Department of HematologyQilu HospitalShandong UniversityJinanChina
| | - S. Yan
- Department of HematologyQilu HospitalShandong UniversityJinanChina
| | - C. Zhang
- Department of HematologyQilu HospitalShandong UniversityJinanChina
| | - R. Wang
- Department of HematologyQilu HospitalShandong UniversityJinanChina
| | - X. Yang
- Department of HematologyQilu HospitalShandong UniversityJinanChina
| | - F. Han
- Department of HematologyQilu HospitalShandong UniversityJinanChina
| | - M. Hou
- Department of HematologyQilu HospitalShandong UniversityJinanChina
| | - D. Ma
- Department of HematologyQilu HospitalShandong UniversityJinanChina
| |
Collapse
|
26
|
Zhao HY, Li DQ, Wang J, Hou Y, Sun L, Peng J, Hou M. [Effect and mechanism of low-dose chidamide on the treatment of primary immune thrombocytopenia]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:292-296. [PMID: 32447932 PMCID: PMC7364928 DOI: 10.3760/cma.j.issn.0253-2727.2020.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
目的 探讨低剂量(0.1 mg/kg)西达本胺治疗原发免疫性血小板减少症(ITP)的作用及机制。 方法 ①应用C57BL/6J小鼠建立ITP被动模型,灌胃给予0、0.01、0.1、0.5、5.0 mg/kg西达本胺,观察治疗前后ITP小鼠模型外周血血小板计数。②应用C57BL/6J小鼠建立ITP主动模型,灌胃给予0.1 mg/kg西达本胺,观察治疗前后ITP小鼠模型外周血血小板计数;4周后处死小鼠,流式细胞术检测脾细胞中CD4+CD25+Foxp3+自然调节性T细胞(nTreg)比例并应用ELISA方法检测小鼠外周血IL-6水平。③分离ITP患者外周血单个核细胞,与低剂量西达本胺共培养72 h后检测nTreg细胞比例;免疫磁珠法分离CD4+CD25+调节性T细胞(Treg细胞)以及CD4+CD25−效应T细胞,将二者以1∶4比例混合共培养,加入低剂量西达本胺干预,检测Treg细胞对效应T细胞增殖的抑制作用。 结果 ①低剂量西达本胺可明显提高ITP被动模型鼠外周血血小板水平。②低剂量西达本胺可显著提高ITP动物模型外周血血小板水平,降低出血相关死亡率。③低剂量西达本胺可显著提高ITP动物模型脾细胞中nTreg比例、降低血清IL-6水平。④低剂量西达本胺可显著提高ITP患者外周血单个核细胞培养体系中nTreg细胞比例、增强Treg细胞对效应T细胞增殖的抑制作用。 结论 低剂量西达本胺可促进nTreg生成、增强Treg细胞的免疫抑制功能、降低IL-6水平,促进免疫耐受,对ITP有较好的治疗作用。
Collapse
Affiliation(s)
- H Y Zhao
- Department of Hematology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan 250013
| | - D Q Li
- Department of Hematology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan 250013
| | - J Wang
- Department of Hematology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan 250013
| | - Y Hou
- Department of Hematology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan 250013
| | - L Sun
- Department of Hematology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan 250013
| | - J Peng
- Department of Hematology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan 250013
| | - M Hou
- Department of Hematology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan 250013
| |
Collapse
|
27
|
Yau T, Hsu C, Kang Y, Kim T, Hou M, Lim H, Chao Y, Kim Y, Ikeda M, Choo S, Neely J, Shen Y, Tschaika M, Kudo M. O-5 Efficacy and safety of nivolumab + ipilimumab in Asian patients with advanced hepatocellular carcinoma: Subanalysis of the CheckMate 040 study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
28
|
Gao G, Wang YZ, Zhang YP, Feng SE, Hou M, Xia QX. [Clinicopathological and molecular features of pulmonary enteric adenocarcinoma]. Zhonghua Bing Li Xue Za Zhi 2020; 49:544-549. [PMID: 32486530 DOI: 10.3760/cma.j.cn112151-20191018-00583] [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 molecular characteristics of pulmonary enteric adenocarcinoma (PEAC). Methods: The clinical and pathological data of 19 cases of PEAC in the Affiliated Cancer Hospital of Zhengzhou University were retrospectively collected from 2015 to 2019. Immunohistochemistry (IHC) was used to detect the relevant immunophenotypes, amplification refractory mutation system (ARMS) and fluorescence in situ hybridization (FISH) were used to detect the expression of EGFR, KRAS and ALK genes. The patients were followed up, and the relevant literature was reviewed and analyzed. Results: There were 19 cases, including 10 males and 9 females, with a mean age of 58 years (range 33-71 years). Microscopically, the tumors showed moderately to highly differentiated adenoid and/or papillary growth patterns. The tumor cells were highly columnar and sometimes showed pseudostratification. Inflammatory necrosis and scattered nuclear fragmentation were seen in some glandular lumens. IHC showed variable expression of CK7 (19/19), TTF1 (8/19), Napsin A (6/19), villin (17/19), CK20 (16/19) and CDX2 (10/19). Molecular testing showed KRAS mutation in nine cases (9/19), EGFR mutation in one case (1/19), and positive ALK split signal in one case (1/19). In the literature, the reported mutation rate of KRAS in PEAC was much higher than that of EGFR and ALK. All 19 cases underwent surgical resection and 11 cases were subjected to chemotherapy or radiotherapy. Conclusions: PEAC is a rare variant of invasive pulmonary adenocarcinoma, and has similar histological and cytological features to that of colorectal adenocarcinoma. However, detailed medical history, histologic heterogeneity, an IHC combination of CK7(+)/villin(+) and high KRAS mutation rate are the key points of diagnosis. The prognosis needs long-term follow-up and big data statistics.
Collapse
Affiliation(s)
- G Gao
- Department of Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Y Z Wang
- Department of Pathology, Shangcheng County People's Hospital, Henan Province, Shangcheng 465350, China
| | - Y P Zhang
- Department of Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - S E Feng
- Department of Pathology, Henan Provincial Hospital, Zhengzhou 451475, China
| | - M Hou
- Department of Pathology, Henan Provincial People's Hospital, Zhengzhou 450008, China
| | - Q X Xia
- Department of Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| |
Collapse
|
29
|
Liu XG, Hou M. [Interpretation of the updated international consensus report on the investigation and management of adult primary immune thrombocytopenia (version 2019)]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:89-92. [PMID: 32135622 PMCID: PMC7357941 DOI: 10.3760/cma.j.issn.0253-2727.2020.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- X G Liu
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| | | |
Collapse
|
30
|
Wang L, Hou M. [How I treat primary immune thrombocytopenia in pregnancy]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:977-979. [PMID: 32023725 PMCID: PMC7342684 DOI: 10.3760/cma.j.issn.0253-2727.2019.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- L Wang
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| | - M Hou
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| |
Collapse
|
31
|
Dong Y, Chen Z, Hou M, Qi L, Yan C, Lu X, Liu R, Xu Y. Mitochondria-targeted aggregation-induced emission active near infrared fluorescent probe for real-time imaging. Spectrochim Acta A Mol Biomol Spectrosc 2020; 224:117456. [PMID: 31419747 DOI: 10.1016/j.saa.2019.117456] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/05/2019] [Accepted: 08/05/2019] [Indexed: 06/10/2023]
Abstract
Mitochondria are essential organelles in eukaryotic cells and act as the energy powerhouse and biosynthetic compartment. Fluorescent dyes are widely used powerful molecular tools for analytical sensing and optical imaging. Low photostability, short excitation and emission wavelengths, and aggregation-induced quenching effects restrict the application of traditional commercial mitochondrial fluorescent probes for bioimaging. In this study, using rhodamine as the acceptor and phenothiazine as the donor, we synthesized a novel mitochondrial-targeted near infrared (NIR) fluorescent probe, MIT-PZR. Due to low cytotoxicity, great photostability and high specificity for mitochondria targeting, MIT-PZR has enormous potential for cell imaging. Furthermore, with a sizeable Stokes shift (emission peak at 705 nm), MIT-PZR penetrated tissues providing stable red fluorescence for imaging in vivo. The histological assessment of various tissues after treatment with MIT-PZR indicated that it has good biocompatibility. Thus, MIT-PZR is a promising mitochondrial NIR fluorescent probe for future application in clinical diagnosis and modern biological research.
Collapse
Affiliation(s)
- Yanjing Dong
- Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Zikang Chen
- Biomaterial Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, PR China
| | - Meirong Hou
- Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Li Qi
- Biomaterial Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, PR China
| | - Chenggong Yan
- Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Xiaodan Lu
- Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Ruiyuan Liu
- Biomaterial Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, PR China.
| | - Yikai Xu
- Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China.
| |
Collapse
|
32
|
Hou M, Brieger D, Hyun K, Kritharides L, Chew D, Amos D. 464 Comparison of Potent Anti-Platelet Agents in Acute Coronary Syndrome. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
33
|
Wang MQ, Hou M, Lin DP, Wang YG. [Proportion and role of CD45+ erythroid progenitor cells in patients with tongue cancer metastasis]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 54:445-449. [PMID: 31288323 DOI: 10.376/cma.j.issn.1002-0098.2019.07.003] [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: 11/08/2022]
Abstract
Objective: To investigate the proportion and role of CD45+ erythroid progenitor cells (EPC) in patients with tongue cancer metastasis. Methods: The initial treatment of tongue cancer patients (n=40) from January 2017 to June 2018 in He'nan Provincial People's Hospital was included in this study. According to the presence or absence of lymph node metastasis, they were divided into tumor group (no lymph node metastasis was found in imaging and pathology) and metastasis group (both imaging and pathology confirmed lymph node metastasis). The expression of Ki-67 was detected by immunohistochemistry and the proportion of CD45+CD71+TER119+EPC was detected by flow cytometry. EPC was sorted by flow cytometry, interleukin-10 (IL-10) and transforming growth factor-β (TGF-β) were detected by enzyme-linked immunosorbent assay (ELISA), and reactive oxygen species (ROS) was detected by flow cytometry. Transwell was used for tumor invasion test; methyl thiazolyltetrazolium (MTT) assay was used to detect proliferation level. Results: There were 20 cases in the tumor group and metastasis group. There was no significant difference between the two groups in terms of age, sex, time of onset and size of tumors. Flow cytometry showed that the ratio of CD45+EPC in peripheral blood of tumor group and metastasis group was (1.2±0.2)% and (3.1±0.2)% (t=7.823, P<0.001). Correlation analysis showed that the ratio of CD45+EPC was positively correlated with the proliferation index of Ki-67 cells (r=0.592, P=0.006). The results of flow cytometry showed that the mean fluorescence intensity (MFI) of ROS in EPC was 102.1±22.9 in tumor group and 530.0±67.2 in metastasis group (t=6.025,P<0.001). The results of ELISA showed that the mass concentrations of IL-10 and TGF-β in EPC supernatant of tumor group were (10.8±1.6) and (3.2±0.8) μg/L, respectively. The mass concentrations of IL-10 and TGF-beta in EPC supernatant of metastasis group were (26.9±3.7) and (6.4±0.9) μg/L, respectively (t=3.956, P=0.003; t=2.595, P=0.027). Transwell results showed that the proportion of invasive cells in the CD45+EPC group [(40.3±4.4)%] was higher than that in the control group [(17.5±2.2)%] (t=4.607, P=0.001). MTT proliferation experiment showed that the proliferation rate of the CD45+EPC group [(52.0±3.3)%] was higher than that of the control group [(30.5±1.9)%] (t=5.656, P<0.001). Conclusions: The proportion of CD45+EPC in patients with tongue cancer metastasis is significantly increased. CD45+EPC can promote the proliferation and metastasis of tongue cancer by secreting immunosuppressive molecules and ROS.
Collapse
Affiliation(s)
- M Q Wang
- Department of Stomatology, He'nan Provincial People's Hospital, Zhengzhou 450000, China
| | | | | | | |
Collapse
|
34
|
Hou M, Bao X, Luo F, Chen X, Liu L, Wu M. HMGA2 Modulates the TGFβ/Smad, TGFβ/ERK and Notch Signaling Pathways in Human Lens Epithelial-Mesenchymal Transition. Curr Mol Med 2019; 18:71-82. [PMID: 29974827 DOI: 10.2174/1566524018666180705104844] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/24/2018] [Accepted: 07/02/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVE Multiple signaling pathways coordinately promote epithelial-mesenchymal transition (EMT) in lens epithelial cells (LECs), where transforming growth factor beta (TGFβ)-mediated signaling plays a central role. But the mechanism of crosstalk among these pathways remains obscure. The objective of this study is to investigate the regulatory effect of the high mobility group protein A2 (HMGA2) on the signaling pathways in lens fibrosis. METHODS The human anterior capsulorhexis specimens were collected. The human SRA01/04 LEC line was cultured and treated with recombinant human TGFβ2 (5ng/ml). For inhibition of signaling pathways, a selective inhibitor SB431542, U0126 or DAPT was added to LECs respectively. The specific small interfering RNA (siRNA) were transfected to LECs for gene silence. The mRNAs expressions were measured by realtime PCR and the proteins expressions were determined by western blot and immunofluorescent staining. RESULTS HMGA2 and EMT markers α-smooth muscle actin (SMA), fibronectin (FN) and collagen type I (Col I) were overexpressed in human ASC specimens and TGFβ2 stimulated EMT in LECs. While blockage of EMT by a selective inhibitor of TGFβ/Smad, TGFβ/extracellular signal-regulated kinase (ERK) or Notch signaling pathway could significantly inhibited HMGA2 protein expression. And silence of HMGA2 by siRNA could significantly inhibit TGFβ2 induced expression of EMT markers including FN, Col I, collagen type IV (Col IV), key transcription factors Snail and Slug, and remarkably upregulate the epithelial markers E-cadherin and tight junction protein (ZO-1). In addition, silence of HMGA2 gene could abrogate TGFβ2 induced phosphorylation of Smad2, Smad3 as well as ERK1/2. Blockage of HMGA2 could also inhibit the upregulation of Jagged1, Notch2, and Notch3 induced by TGFβ2. CONCLUSION This study indicated that HMGA2 functions as a shared effector in TGFβ2- induced lens fibrosis, modulating the signaling network necessary for EMT in a positive feedback loop.
Collapse
Affiliation(s)
- M Hou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - X Bao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.,Department of Ophthalmology, Ophthalmology & Optometry Center, Peking University People's Hospital, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, Beijing 100044, China
| | - F Luo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - X Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - L Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - M Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| |
Collapse
|
35
|
Yang F, Hou M. 320 Protective effect of ferulic acid on decreased involucrin expression in HaCaT caused by acrolein. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
36
|
|
37
|
Sun AN, Tian XP, Cao XS, Ouyang J, Gu J, Xu KL, Yu K, Zeng QS, Sun ZM, Chen GA, Gao SJ, Zhou J, Wang JH, Yang LH, Luo JM, Zhang M, Guo XH, Wang XM, Zhang X, Shi KQ, Sun H, Ding XM, Hu JD, Zheng RJ, Zhao HG, Hou M, Wang X, Chen FP, Zhu Y, Liu H, Huang DP, Liao AJ, Ma LM, Su LP, Liu L, Zhou ZP, Huang XB, Sun XM, Wu DP. [Efficacy and safety of IA regimen containing different doses of idarubicin in de-novo acute myeloid leukemia for adult patients]. Zhonghua Xue Ye Xue Za Zhi 2019; 38:1017-1023. [PMID: 29365393 PMCID: PMC7342198 DOI: 10.3760/cma.j.issn.0253-2727.2017.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
目的 探讨含不同剂量去甲氧柔红霉素(IDA 8、10、12 mg/m2)的IA方案诱导治疗成人初发急性髓系白血病(AML)(非急性早幼粒细胞白血病)的临床疗效和安全性。 方法 采用多中心、单盲、非随机、临床对照研究,纳入2011年5月至2015年3月苏州大学附属第一医院及其他36家单位收治的1 215例成人初发AML患者,根据诱导化疗方案中IDA的剂量对患者进行分组,分析不同剂量IDA联合阿糖胞苷(100 mg/m2)组成的IA方案在成人初发AML诱导治疗中的完全缓解(CR)率、血液学及非血液学不良事件。 结果 可纳入缓解率分析的AML患者共1 207例,IDA 8 mg/m2、10 mg/m2和12 mg/m2组的CR率分别为73.6%(215/292)、84.1%(662/787)和86.7%(111/128),差异有统计学意义(P<0.001);以IDA 8 mg/m2组为参照组,在调整了年龄、骨髓原始细胞比例、FAB分型、危险度分层后,IDA 10 mg/m2和IDA 12 mg/m2为影响患者CR的有利因素[OR=0.49(95% CI 0.34~0.70),P<0.001;OR=0.36(95%CI 0.18~0.71),P=0.003]。在中、低危组中三组CR率分别为76.5%(163/213)、86.9%(506/582)和86.1%(68/79),差异有统计学意义(P=0.007);在调整了年龄、骨髓原始细胞比例、FAB分型因素后,IDA 10 mg/m2为影响患者CR的有利因素[OR=0.47(95% CI 0.31~0.71),P<0.001]。在高危组中,三组CR率分别为50.0%(18/36)、60.6%(43/71)和81.8%(18/22),差异无统计学意义(P=0.089),但在调整了年龄、骨髓原始细胞比例、FAB分型因素后,IDA 12 mg/m2为影响患者CR的有利因素[OR=0.22(95% CI 0.06~0.80),P=0.022]。8 mg/m2、10 mg/m2和12 mg/m2组中性粒细胞≤0.5×109/L的中位持续时间分别为14(11~18)、15(11~20)和18(14~22)d,差异有统计学意义(P=0.012);三组PLT≤20×109/L的中位持续时间分别为14(7~17)、15(11~20)和17(15~21)d,差异有统计学意义(P=0.001);三组肺部感染发生率分别为9.8%、13.5%和25.2%,差异有统计学意义(P<0.001)。 结论 在中国成人(18~60岁)初发AML中,建议中、低危组患者采用含IDA 10 mg/m2的IA方案进行诱导治疗;而高危组AML建议选择含IDA 12 mg/m2的IA方案进行诱导治疗。
Collapse
Affiliation(s)
- A N Sun
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, Soochow University, Suzhou Institute of Blood and Marrow Transplantation, Suzhou 215006, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - D P Wu
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Collaborative Innovation Center of Hematology, Soochow University, Suzhou Institute of Blood and Marrow Transplantation, Suzhou 215006, China
| |
Collapse
|
38
|
Abstract
目的 前瞻性评价中华医学会血液学分会在《成人原发免疫性血小板减少症诊断与治疗中国专家共识(2016年版)》中推荐的原发免疫性血小板减少症(ITP)出血评分量表(2016版ITP出血评分量表)的临床应用价值。 方法 采用2016版ITP出血评分量表和ITP特异性出血评价工具(ITP-BAT)对88例ITP患者进行出血评分,分析血小板计数、性别、疾病分期与2016版ITP出血评分量表评分的关系和两种出血评分系统的一致性。在47例新诊断ITP患者大剂量地塞米松治疗前及治疗后1、2周分别进行2016版ITP出血评分量表评分及血小板计数检查,评估2016版ITP出血评分量表的反应度。 结果 出血评分和患者血小板计数呈负相关(r=−0.515,P<0.001),不同性别、疾病分期患者2016版ITP出血评分量表评分差异无统计学意义(F=4.255,P=0.382;F=5.251,P=0.753)。ITP出血评分量表与ITP-BAT具有很好的一致性。47例ITP患者大剂量地塞米松治疗前后出血评分比较差异具有统计学意义(z=−5.612,P<0.001),治疗后未达到完全反应的患者治疗前后出血评分比较差异具有统计学意义(z=−3.969,P<0.001)。两名医师背靠背评分完全相同的比例为94.4%(k=0.918)。应用2016版ITP出血评分量表进行评分耗时短于ITP-BAT评分系统[3(2~6)min对7(4~13)min,z=−8.213,P<0.001]。 结论 2016版ITP出血评分量表在临床应用中具有很好的反应度及评价一致性,与ITP-BAT评分系统具有很好的一致性,且采集信息耗时短,可作为病情判断、风险评估及疗效评价的有效工具。
Collapse
Affiliation(s)
- S Xiao
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| | | | | |
Collapse
|
39
|
|
40
|
Aumaître S, Behringer RP, Cazaubiel A, Clément E, Crassous J, Durian DJ, Falcon E, Fauve S, Fischer D, Garcimartín A, Garrabos Y, Hou M, Jia X, Lecoutre C, Luding S, Maza D, Noirhomme M, Opsomer E, Palencia F, Pöschel T, Schockmel J, Sperl M, Stannarius R, Vandewalle N, Yu P. An instrument for studying granular media in low-gravity environment. Rev Sci Instrum 2018; 89:075103. [PMID: 30068123 DOI: 10.1063/1.5034061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A new experimental facility has been designed and constructed to study driven granular media in a low-gravity environment. This versatile instrument, fully automatized, with a modular design based on several interchangeable experimental cells, allows us to investigate research topics ranging from dilute to dense regimes of granular media such as granular gas, segregation, convection, sound propagation, jamming, and rheology-all without the disturbance by gravitational stresses active on Earth. Here, we present the main parameters, protocols, and performance characteristics of the instrument. The current scientific objectives are then briefly described and, as a proof of concept, some first selected results obtained in low gravity during parabolic flight campaigns are presented.
Collapse
Affiliation(s)
- S Aumaître
- SPEC, DSM, CEA-Saclay, CNRS URA 2464, F-91191 Gif-sur-Yvette, France
| | - R P Behringer
- Department of Physics, Duke University, Durham, North Carolina 27708-0305, USA
| | - A Cazaubiel
- Université Paris Diderot, SPC, MSC, UMR 7057 CNRS, F-75013 Paris, France
| | - E Clément
- PMMH, ESPCI, UMR 7636 CNRS, F-75005 Paris, France
| | - J Crassous
- Université Rennes 1, IPR, UMR 6251 CNRS, F-35042 Rennes, France
| | - D J Durian
- University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, USA
| | - E Falcon
- Université Paris Diderot, SPC, MSC, UMR 7057 CNRS, F-75013 Paris, France
| | - S Fauve
- École Normale Supérieure, LPS, CNRS, UMR 8550, F-75005 Paris, France
| | - D Fischer
- IEP, Otto von Guericke Universität, D-39106 Magdeburg, Germany
| | - A Garcimartín
- DFMA, Universidad de Navarra, E-31080 Pamplona, Spain
| | - Y Garrabos
- CNRS, ICMCB, Université de Bordeaux, UMR 5026, F-33600 Pessac, France
| | - M Hou
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - X Jia
- Institut Langevin, ESPCI Paris, PSL, CNRS, F-75005 Paris, France
| | - C Lecoutre
- CNRS, ICMCB, Université de Bordeaux, UMR 5026, F-33600 Pessac, France
| | - S Luding
- MSM, University of Twente, 7500 AE Enschede, The Netherlands
| | - D Maza
- DFMA, Universidad de Navarra, E-31080 Pamplona, Spain
| | - M Noirhomme
- GRASP, Institute of Physics B5a, University of Liège, B-4000 Liège, Belgium
| | - E Opsomer
- GRASP, Institute of Physics B5a, University of Liège, B-4000 Liège, Belgium
| | - F Palencia
- CNRS, ICMCB, Université de Bordeaux, UMR 5026, F-33600 Pessac, France
| | - T Pöschel
- Friedrich-Alexander Universität, IMS, D-91052 Erlangen, Germany
| | - J Schockmel
- GRASP, Institute of Physics B5a, University of Liège, B-4000 Liège, Belgium
| | - M Sperl
- Institut für Materialphysik im Weltraum, DLR, D-51170 Köln, Germany
| | - R Stannarius
- IEP, Otto von Guericke Universität, D-39106 Magdeburg, Germany
| | - N Vandewalle
- GRASP, Institute of Physics B5a, University of Liège, B-4000 Liège, Belgium
| | - P Yu
- MSM, University of Twente, 7500 AE Enschede, The Netherlands
| |
Collapse
|
41
|
Wang X, Hou M, Xie X, Yu J, Wang X, Li X. Kinematic and kinetic effect during stair descending in knee osteoarthritis treated with electro-acupuncture. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
42
|
Hou M, Yan C, Chen Z, Zhao Q, Yuan M, Xu Y, Zhao B. Multifunctional NIR-responsive poly(vinylpyrrolidone)-Cu-Sb-S nanotheranostic agent for photoacoustic imaging and photothermal/photodynamic therapy. Acta Biomater 2018; 74:334-343. [PMID: 29753138 DOI: 10.1016/j.actbio.2018.05.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 05/03/2018] [Accepted: 05/09/2018] [Indexed: 01/31/2023]
Abstract
Ternary copper-based chalcogenide nanomaterials have become rather attractive due to the near-infrared (NIR) response in cancer theranostic fields. However, it is still challenging to further improve the theranostic efficiency of these nanomaterials. Herein, Cu-Sb-S nanoparticles (NPs) around 24 nm are synthesized facilely and functionalized with poly(vinylpyrrolidone) (PVP). Under the NIR irradiation, the resultant PVP-Cu-Sb-S NPs exhibit a relatively high photothermal conversion efficiency of 53.16% and a simultaneous reactive oxygen species (ROS) generation effect. Due to these outstanding photothermal/photodynamic effects, excellent tumor ablation results can be achieved by the combination of PVP-Cu-Sb-S NPs and 808 nm NIR laser treatments without obvious side effect. In addition, they show remarkable contrast enhancement according to in vitro and in vivo photoacoustic (PA) imaging. These PVP-Cu-Sb-S NPs could be served as a multifunctional nanotheranostic agent for PA imaging, photothermal/photodynamic cancer therapy. STATEMENT OF SIGNIFICANCE Highly theranostic efficiency ternary copper-based chalcogenide nanomaterials has not been fully developed yet. Herein we report the PVP-Cu-Sb-S nanoparticles (NPs) with relatively high photothermal efficiency, simultaneous reactive oxygen species generation effect and photoacoustic imaging capability. The photothermal conversion efficiency of PVP-Cu-Sb-S NPs is higher than most of copper-based chalcogenide nanomaterials reported before. These findings provide a new kind of ternary copper-based chalcogenide with an enhanced theranostic effect, which could be served as a promising multifunctional nanotheranostic agent in the field of biomedical application.
Collapse
|
43
|
Jin J, Du X, Zhou DB, Li JM, Li JY, Hou M, Liu T, Wu DP, Hu Y, Xiao ZJ. [Efficacy and safety of JAK inhibitor ruxolitinib in Chinese patients with myelofibrosis: results of a 1-year follow-up of A2202]. Zhonghua Xue Ye Xue Za Zhi 2018; 37:858-863. [PMID: 27801315 PMCID: PMC7364878 DOI: 10.3760/cma.j.issn.0253-2727.2016.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
目的 评价芦可替尼在中国骨髓纤维化患者中的疗效和安全性。 方法 63例中国骨髓纤维化患者纳入研究,男32例,女31例,中位年龄55(25~79)岁。芦可替尼起始剂量:基线PLT(100~200)×109/L者(25例)30 mg/d,基线PLT>200×109/L者(38例)40 mg/d。使用MRI/CT、欧洲癌症研究与治疗组织生活质量调查问卷核心30(EORTC QLQ-C30)和骨髓纤维化症状评估表(MFSAF)v2.0对患者进行脾脏体积、生活质量和症状评估。 结果 截至12个月随访结束,47例(74.6%)患者仍在继续治疗,25例(39.7%)患者脾脏体积较基线缩小超过35%,首次达到脾脏体积缩小≥35%的中位时间为12.71(95%CI 12.14~35.00)周。治疗期间,85.7%(54/63)的患者有不同程度的脾脏缩小,中位最佳脾脏体积缩小百分比为35.5%,48周时中位脾脏缩小体积为34.7%。治疗48周时53.1 %(26/49)的患者MFSAF症状评分降低超过50%,生活质量得到改善。最常见的血液学不良事件包括贫血和血小板计数降低,但极少造成停药。非血液学不良事件以1/2级为主。 结论 芦可替尼使中国骨髓纤维化患者的脾脏体积获得持续缩小、症状改善,不良反应可耐受。
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Z J Xiao
- Institute of Hematology and Blood Diseases Hospital, CAMS & PUMC, the State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| |
Collapse
|
44
|
Chen Z, Yan C, Yan S, Liu Q, Hou M, Xu Y, Guo R. Non-invasive monitoring of in vivo hydrogel degradation and cartilage regeneration by multiparametric MR imaging. Am J Cancer Res 2018; 8:1146-1158. [PMID: 29464005 PMCID: PMC5817116 DOI: 10.7150/thno.22514] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/25/2017] [Indexed: 12/26/2022] Open
Abstract
Numerous biodegradable hydrogels for cartilage regeneration have been widely used in the field of tissue engineering. However, to non-invasively monitor hydrogel degradation and efficiently evaluate cartilage restoration in situ is still challenging. Methods: A ultrasmall superparamagnetic iron oxide (USPIO)-labeled cellulose nanocrystal (CNC)/silk fibroin (SF)-blended hydrogel system was developed to monitor hydrogel degradation during cartilage regeneration. The physicochemical characterization and biocompatibility of the hydrogel were evaluated in vitro. The in vivo hydrogel degradation and cartilage regeneration of different implants were assessed using multiparametric magnetic resonance imaging (MRI) and further confirmed by histological analysis in a rabbit cartilage defect model for 3 months. Results: USPIO-labeled hydrogels showed sufficient MR contrast enhancement and retained stability without loss of the relaxation rate. Neither the mechanical properties of the hydrogels nor the proliferation of bone-marrow mesenchymal stem cells (BMSCs) were affected by USPIO labeling in vitro. CNC/SF hydrogels with BMSCs degraded more quickly than the acellular hydrogels as reflected by the MR relaxation rate trends in vivo. The morphology of neocartilage was noninvasively visualized by the three-dimensional water-selective cartilage MRI scan sequence, and the cartilage repair was further demonstrated by macroscopic and histological observations. Conclusion: This USPIO-labeled CNC/SF hydrogel system provides a new perspective on image-guided tissue engineering for cartilage regeneration.
Collapse
|
45
|
Hou M, Lu X, Zhang Z, Xia Q, Yan C, Yu Z, Xu Y, Liu R. Conjugated Polymer Containing Organic Radical for Optical/MR Dual-Modality Bioimaging. ACS Appl Mater Interfaces 2017; 9:44316-44323. [PMID: 29199819 DOI: 10.1021/acsami.7b15052] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Optical/MRI bimodal probes have attracted much attention due to palmary soft tissue resolution and high imaging sensitivity. In this study, poly[fluorene-co-alt-p-phenylene] containing organic radical (PFP-TEMPO+) is successfully developed for optical and MRI dual-modality bioimaging. PFP-TEMPO+ displays advanced properties such as fluorescence emission, high photostablilty, reasonable T1 relaxation effect, low cytotoxicity, and good biocompatibility. Moreover, the ability of PFP-TEMPO+ for tumor tissues imaging confirms that it could be used as an optical and MRI imaging probe for in vivo imaging. The results of the present work disclose the potential applications of PFP-TEMPO+ as an optical and MRI contrast agent.
Collapse
Affiliation(s)
- Meirong Hou
- Medical Imaging Center, Nanfang Hospital, ‡Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, and §School of Pharmaceutical Sciences, Southern Medical University , Guangzhou 510515, People's Republic of China
| | - Xiaodan Lu
- Medical Imaging Center, Nanfang Hospital, ‡Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, and §School of Pharmaceutical Sciences, Southern Medical University , Guangzhou 510515, People's Republic of China
| | - Zhide Zhang
- Medical Imaging Center, Nanfang Hospital, ‡Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, and §School of Pharmaceutical Sciences, Southern Medical University , Guangzhou 510515, People's Republic of China
| | - Qi Xia
- Medical Imaging Center, Nanfang Hospital, ‡Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, and §School of Pharmaceutical Sciences, Southern Medical University , Guangzhou 510515, People's Republic of China
| | - Chenggong Yan
- Medical Imaging Center, Nanfang Hospital, ‡Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, and §School of Pharmaceutical Sciences, Southern Medical University , Guangzhou 510515, People's Republic of China
| | - Zhiqiang Yu
- Medical Imaging Center, Nanfang Hospital, ‡Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, and §School of Pharmaceutical Sciences, Southern Medical University , Guangzhou 510515, People's Republic of China
| | - Yikai Xu
- Medical Imaging Center, Nanfang Hospital, ‡Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, and §School of Pharmaceutical Sciences, Southern Medical University , Guangzhou 510515, People's Republic of China
| | - Ruiyuan Liu
- Medical Imaging Center, Nanfang Hospital, ‡Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, and §School of Pharmaceutical Sciences, Southern Medical University , Guangzhou 510515, People's Republic of China
| |
Collapse
|
46
|
Cui D, Lu X, Yan C, Liu X, Hou M, Xia Q, Xu Y, Liu R. Gastrin-releasing peptide receptor-targeted gadolinium oxide-based multifunctional nanoparticles for dual magnetic resonance/fluorescent molecular imaging of prostate cancer. Int J Nanomedicine 2017; 12:6787-6797. [PMID: 28979118 PMCID: PMC5602459 DOI: 10.2147/ijn.s139246] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Bombesin (BBN), an analog of gastrin-releasing peptide (GRP), specifically binds to GRP receptors, which are overexpressed in human prostate cancer (PC). Here, we synthesized a BBN-modified gadolinium oxide (Gd2O3) nanoprobe containing fluorescein (Gd2O3-5(6)-carboxyfluorescein [FI]-polyethylene glycol [PEG]-BBN) for targeted magnetic resonance (MR)/optical dual-modality imaging of PC. The Gd2O3-FI-PEG-BBN nanoparticles exhibited a relatively uniform particle size with an average diameter of 52.3 nm and spherical morphology as depicted by transmission electron microscopy. The longitudinal relaxivity (r1) of Gd2O3-FI-PEG-BBN (r1 =4.23 mM−1s−1) is comparable to that of clinically used Magnevist (Gd-DTPA). Fluorescence microscopy and in vitro cellular MRI demonstrated GRP receptor-specific and enhanced cellular uptake of the Gd2O3-FI-PEG-BBN in PC-3 tumor cells. Moreover, Gd2O3-FI-PEG-BBN showed more remarkable contrast enhancement than the corresponding nontargeted Gd2O3-FI-PEG according to in vivo MRI and fluorescent imaging. Tumor immunohistochemical analysis further demonstrated improved accumulation of the targeted nanoprobe in tumors. BBN-conjugated Gd2O3 may be a promising nanoplatform for simultaneous GRP receptor-targeted molecular cancer diagnosis and antitumor drug delivery in future clinical applications.
Collapse
Affiliation(s)
- Danting Cui
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Xiaodan Lu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Chenggong Yan
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Xiang Liu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Meirong Hou
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Qi Xia
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, People's Republic of China
| | - Yikai Xu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Ruiyuan Liu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, People's Republic of China.,School of Biomedical Engineering, Southern Medical University, Guangzhou, People's Republic of China
| |
Collapse
|
47
|
Feng Q, Xu M, Yu YY, Hou Y, Mi X, Sun YX, Ma S, Zuo XY, Shao LL, Hou M, Zhang XH, Peng J. High-dose dexamethasone or all-trans-retinoic acid restores the balance of macrophages towards M2 in immune thrombocytopenia. J Thromb Haemost 2017; 15:1845-1858. [PMID: 28682499 DOI: 10.1111/jth.13767] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [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: 01/13/2017] [Indexed: 01/08/2023]
Abstract
Essentials M1/M2 imbalance is involved in many autoimmune diseases, and could be restored. The expressions and functions of M1 and M2 were investigated in an in vitro culture system. A preferred M1 polarization is involved in the pathogenesis of immune thrombocytopenia (ITP). High-dose dexamethasone or all-trans-retinoic acid restores M1/M2 balance in ITP patients. SUMMARY Background Immune thrombocytopenia (ITP) is an autoimmune disorder. Deficiency of immune tolerance in antigen-presenting cells and cross-communication between antigen-presenting cells and T cells are involved in the pathogenesis of ITP. Macrophages can polarize into proinflammatory M1 or anti-inflammatory M2 phenotypes in response to different environmental stimuli, and have diverse immunologic functions. Objectives To investigate the M1/M2 imbalance in ITP and whether high-dose dexamethasone (HD-DXM) or all-trans-retinoic acid (ATRA) could restore this imbalance. Methods The numbers of M1 and M2 macrophages in the spleens of ITP patients and patients with traumatic spleen rupture were analyzed by immunofluorescence. Monocyte-derived macrophages were cultured and induced with cytokines and drugs. The expression of M1 and M2 markers and functions of M1 and M2 macrophages before and after modulation by HD-DXM or ATRA were evaluated with flow cytometry and ELISA. Results There was preferred M1 polarization in ITP spleens as compared with healthy controls. Monocyte-derived macrophages from ITP patients had increased expression of M1 markers and impaired immunosuppressive functions. Either HD-DXM or ATRA corrected this imbalance by decreasing the expression of M1 markers and increasing the expression of M2 markers. Moreover, HD-DXM-modulated or ATRA-modulated macrophages suppressed both CD4+ and CD8+ T-cell proliferation and expanded CD4+ CD49+ LAG3+ type 1 T-regulatory cells. HD-DXM or ATRA modulated macrophages to shift the T-cell cytokine profile towards Th2. Treating patients with HD-DXM or ATRA revealed that macrophages induced from responders showed a predominant M2-like phenotype and immunosuppressive function. Conclusions Aberrant macrophage polarization is involved in the pathogenesis of ITP. Either HD-DXM or ATRA is able to correct this imbalance.
Collapse
MESH Headings
- Adolescent
- Adult
- Aged
- Biomarkers/metabolism
- CD8-Positive T-Lymphocytes/drug effects
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Case-Control Studies
- Cell Proliferation/drug effects
- Cells, Cultured
- Coculture Techniques
- Cytokines/metabolism
- Dexamethasone/adverse effects
- Dexamethasone/therapeutic use
- Female
- Humans
- Immunologic Factors/adverse effects
- Immunologic Factors/therapeutic use
- Lymphocyte Activation/drug effects
- Macrophage Activation/drug effects
- Macrophages/drug effects
- Macrophages/immunology
- Macrophages/metabolism
- Male
- Middle Aged
- Phagocytosis/drug effects
- Phenotype
- Purpura, Thrombocytopenic, Idiopathic/drug therapy
- Purpura, Thrombocytopenic, Idiopathic/immunology
- Purpura, Thrombocytopenic, Idiopathic/metabolism
- Spleen/drug effects
- Spleen/immunology
- Spleen/metabolism
- T-Lymphocytes, Helper-Inducer/drug effects
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Treatment Outcome
- Tretinoin/adverse effects
- Tretinoin/therapeutic use
- Young Adult
Collapse
Affiliation(s)
- Q Feng
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - M Xu
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Y Y Yu
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - Y Hou
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - X Mi
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - Y X Sun
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - S Ma
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - X Y Zuo
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - L L Shao
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - M Hou
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Jinan, China
| | - X H Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - J Peng
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| |
Collapse
|
48
|
Hou M, Yan G, Ma X, Luo J, Hou X, Zhou M, Pu C, Han X, Zhang W, Zhang M, Shi J, Li R. Identification of hit compounds for squalene synthase: Three-dimensional quantitative structure-activity relationship pharmacophore modeling, virtual screening, molecular docking, binding free energy calculation, and molecular dynamic simulation. Journal of Chemometrics 2017. [DOI: 10.1002/cem.2923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- M. Hou
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| | - G. Yan
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| | - X. Ma
- Jiyuan Vocational and technical College; Jiyuan 459000 China
| | - J. Luo
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| | - X. Hou
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| | - M. Zhou
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| | - C. Pu
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| | - X. Han
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| | - W. Zhang
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| | - M. Zhang
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| | - J. Shi
- Individualized Medication Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine; University of Electronic Science and Technology of China; Chengdu 610072 Sichuan China
| | - R. Li
- Cancer center, Collaborative Innovation Center for Biotherapy, West China Hospital; Sichuan University; Sichuan 610041 China
| |
Collapse
|
49
|
Lu X, Zhang Z, Xia Q, Hou M, Yan C, Chen Z, Xu Y, Liu R. Glucose functionalized carbon quantum dot containing organic radical for optical/MR dual-modality bioimaging. Mater Sci Eng C Mater Biol Appl 2017; 82:190-196. [PMID: 29025647 DOI: 10.1016/j.msec.2017.08.074] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 08/16/2017] [Accepted: 08/16/2017] [Indexed: 12/18/2022]
Abstract
The organic paramagnetic compounds nitroxides have great potential as magnetic resonance imaging (MRI) contrast agents. Herein, we report the synthesis and characterization of glucose modified carbon quantum dot containing 2,2,6,6-tetramethyl-piperidinooxy (TEMPO) for targeted bimodal MR/optical imaging of tumor cells. CQD-TEMPO-Glu shows the greatest potentials for bioimaging applications in view of low cytotoxicity, good biocompatibility, green fluorescence emission and high T1 relaxivities. The in vitro MR and optical imaging results confirm enhanced cellular internalization of CQD-TEMPO-Glu in cancer cells through GLUT mediated endocytosis. These results confirm that CQD-TEMPO-Glu is expected to be widely exploited as dual-modal contrast for cancer imaging.
Collapse
Affiliation(s)
- Xiaodan Lu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Zhide Zhang
- Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, PR China
| | - Qi Xia
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Meirong Hou
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Chenggong Yan
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Zelong Chen
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Yikai Xu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China.
| | - Ruiyuan Liu
- Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, PR China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China.
| |
Collapse
|
50
|
Ma J, Zhu J, Shi Y, Huang H, Jiang W, Li W, Wang J, Xu W, Hou M, Jin Z, Liu T, Liu P, Zhao W, Zhang H, Yang H, Zhang X, Jin J, Li Z, Qiu L, Dong M, Wang X, Zhou J, Shen J, Chen X, Song Y. A POST-MARKETING SURVEILLANCE STUDY OF 703 PATIENTS TREATED WITH CHIDAMIDE FOR PERIPHERAL T-CELL LYMPHOMA (PTCL) IN CHINA. HDAC STUDY GROUP OF UNION FOR CHINA LYMPHOMA INVESTIGATORS (UCLI). Hematol Oncol 2017. [DOI: 10.1002/hon.2438_114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- J. Ma
- Hematology & Oncology Department; Harbin Institute of Hematology & Oncology; Harbin China
| | - J. Zhu
- Lymphoma Division; Beijing Cancer Hospital; Beijing China
| | - Y.K. Shi
- Medical Oncology Department; Cancer Hospital Chinese Academy of Medicical Sciences; Beijing China
| | - H.Q. Huang
- Medical Oncology Department; Sun Yat-sen University Cancer Center; Guangzhou China
| | - W.Q. Jiang
- Medical Oncology Department; Sun Yat-sen University Cancer Center; Guangzhou China
| | - W.Y. Li
- Lymphoma Division, Guangdong General Hospital; Guangzhou China
| | - J.H. Wang
- Medical Oncology Department; Nanjing General Hospital; Nanjing China
| | - W. Xu
- Hematology Department; Jiangsu Provincial Hospital; Nanjing China
| | - M. Hou
- Hematology Department; Qilu Hospital of Shandong University; Jinan China
| | - Z.M. Jin
- Hematology Department; The First Affiliated Hospital of Soochow University; Suzhou China
| | - T. Liu
- Hematology Department; West China Hospital; Chengdu China
| | - P. Liu
- Hematology Department; Zhongshan Hospital; Shanghai China
| | - W.L. Zhao
- Hematology Department; Institute of Hematology Shanghai Rui Jin Hospital; Shanghai China
| | - H.L. Zhang
- Medical Oncology Department; Tianjin Medical University Cancer Institute and Hospital; Tianjin China
| | - H.Y. Yang
- Medical Oncology Department; Zhejiang Cancer Hospital; Hangzhou China
| | - X. Zhang
- Hematology Department; Xinqiao Hospital; Chongqing China
| | - J. Jin
- Hematology Department; The First Affiliated Hospital of Zhejiang University; Hangzhou China
| | - Z.M. Li
- Lymphoma Division; Sun Yat-sen University Cancer Center; Guangzhou China
| | - L.G. Qiu
- Lymphatic Cancer Center, Blood Diseases Hospital; Chinese Academy of Medical Sciences; Tianjin China
| | - M. Dong
- Medical Oncology Department; Caner Hospital Chinese Academy of Medical Sciences; Beijing China
| | - X. Wang
- Hematology Department; Shandong Provincial Hospital; Jinan China
| | - J.F. Zhou
- Hematology Department; Tongji Hospital; Wuhan China
| | - J.Z. Shen
- Hematology Department, Union Hospital; Fujian Medical University; Fuzhou China
| | - X.Q. Chen
- Hematology Department, Xijin Hospital; The fourth Military Medical University; Xi'an China
| | - Y.Q. Song
- Lymphoma Division; Beijing Cancer Hospital; Beijing China
| |
Collapse
|