1
|
Tam EH, Peng Y, Cheah MXY, Yan C, Xiao T. Neutralizing antibodies to block viral entry and for identification of entry inhibitors. Antiviral Res 2024; 224:105834. [PMID: 38369246 DOI: 10.1016/j.antiviral.2024.105834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/01/2024] [Accepted: 02/07/2024] [Indexed: 02/20/2024]
Abstract
Neutralizing antibodies (NAbs) are naturally produced by our immune system to combat viral infections. Clinically, neutralizing antibodies with potent efficacy and high specificity have been extensively used to prevent and treat a wide variety of viral infections, including Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), Human Immunodeficiency Virus (HIV), Dengue Virus (DENV) and Hepatitis B Virus (HBV). An overwhelmingly large subset of clinically effective NAbs operates by targeting viral envelope proteins to inhibit viral entry into the host cell. Binding of viral envelope protein to the host receptor is a critical rate limiting step triggering a cascade of downstream events, including endocytosis, membrane fusion and pore formation to allow viral entry. In recent years, improved structural knowledge on these processes have allowed researchers to also leverage NAbs as an indispensable tool in guiding discovery of novel antiviral entry inhibitors, providing drug candidates with high efficacy and pan-genus specificity. This review will summarize the latest progresses on the applications of NAbs as effective entry inhibitors and as important tools to develop antiviral therapeutics by high-throughput drug screenings, rational design of peptidic entry inhibitor mimicking NAbs and in silico computational modeling approaches.
Collapse
Affiliation(s)
- Ee Hong Tam
- School of Biological Sciences, Nanyang Technological University 637551, Singapore; Institute of Structural Biology, Nanyang Technological University 636921, Singapore
| | - Yu Peng
- School of Biological Sciences, Nanyang Technological University 637551, Singapore; Institute of Structural Biology, Nanyang Technological University 636921, Singapore
| | - Megan Xin Yan Cheah
- Institute of Molecular and Cell Biology, A*STAR (Agency of Science, Technology and Research) 138673, Singapore
| | - Chuan Yan
- Institute of Molecular and Cell Biology, A*STAR (Agency of Science, Technology and Research) 138673, Singapore
| | - Tianshu Xiao
- School of Biological Sciences, Nanyang Technological University 637551, Singapore; Institute of Structural Biology, Nanyang Technological University 636921, Singapore.
| |
Collapse
|
2
|
Prajapati K, Yan C, Yang Q, Arbitman S, Fitzgerald DP, Sharee S, Shaik J, Bosiacki J, Myers K, Paucarmayta A, Johnson DM, O’Neill T, Kundu S, Cusumano Z, Langermann S, Langenau DM, Patel S, Flies DB. The FLRT3-UNC5B checkpoint pathway inhibits T cell-based cancer immunotherapies. Sci Adv 2024; 10:eadj4698. [PMID: 38427724 PMCID: PMC10906930 DOI: 10.1126/sciadv.adj4698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 01/25/2024] [Indexed: 03/03/2024]
Abstract
Cancers exploit coinhibitory receptors on T cells to escape tumor immunity, and targeting such mechanisms has shown remarkable clinical benefit, but in a limited subset of patients. We hypothesized that cancer cells mimic noncanonical mechanisms of early development such as axon guidance pathways to evade T cell immunity. Using gain-of-function genetic screens, we profiled axon guidance proteins on human T cells and their cognate ligands and identified fibronectin leucine-rich transmembrane protein 3 (FLRT3) as a ligand that inhibits T cell activity. We demonstrated that FLRT3 inhibits T cells through UNC5B, an axon guidance receptor that is up-regulated on activated human T cells. FLRT3 expressed in human cancers favored tumor growth and inhibited CAR-T and BiTE + T cell killing and infiltration in humanized cancer models. An FLRT3 monoclonal antibody that blocked FLRT3-UNC5B interactions reversed these effects in an immune-dependent manner. This study supports the concept that axon guidance proteins mimic T cell checkpoints and can be targeted for cancer immunotherapy.
Collapse
Affiliation(s)
| | - Chuan Yan
- Molecular Pathology and Cancer Center, Massachusetts General Hospital Research Institute, Charlestown, MA 02129, USA
- Harvard Stem Cell Institute, Cambridge, MA 02139, USA
| | - Qiqi Yang
- Molecular Pathology and Cancer Center, Massachusetts General Hospital Research Institute, Charlestown, MA 02129, USA
- Harvard Stem Cell Institute, Cambridge, MA 02139, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | - David M. Langenau
- Molecular Pathology and Cancer Center, Massachusetts General Hospital Research Institute, Charlestown, MA 02129, USA
- Harvard Stem Cell Institute, Cambridge, MA 02139, USA
| | | | | |
Collapse
|
3
|
Yan C, Zhou L, Li J, Zhang G, Yang C, Gu J, Lu X, Zhang L, Zeng M. Improved small vessel visibility in diabetic foot arteriography using dual-energy CT. Clin Radiol 2024; 79:e424-e431. [PMID: 38101997 DOI: 10.1016/j.crad.2023.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 12/17/2023]
Abstract
AIM To test the feasibility and performance of dual-energy computed tomography (DECT) in foot arteriography of diabetic patients, where contrast medium is largely reduced within the small vessels. MATERIALS AND METHODS A total of 50 diabetic patients were enrolled prospectively, where DECT was acquired immediately after the CT angiography (CTA, group A) of the lower extremity. Two images were derived from the DECT data, one optimal virtual monochromatic image (VMI, group B) and one fusion image (group C), both of which were compared against the CTA image for visualising the foot arteries. The contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR) were evaluated. The arterial course and contrast were graded each using a five-point scale. The clarity of small vessel depiction was quantified by comparing the number of plantar metatarsal arteries found in the maximum intensity projection image. RESULTS The median CNRs and SNRs obtained in group B were approximately 45% and 20% higher than those in groups A and C, respectively (p<0.05). Group B also received higher subjective scores on the posterior tibial artery and the foot arteries (all >3) than groups A and C. The number of visible branches of the plantar metatarsal arteries was found to be substantially higher (p<0.05) in group B (median=6) than in groups A (median=2) and C (median=4). CONCLUSION DECT was found to be superior to conventional CTA in foot arteriography, and beyond the lower extremity, it might be a general favourable solution for imaging regions with small vessels and reduced contrast medium.
Collapse
Affiliation(s)
- C Yan
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - L Zhou
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - J Li
- United Imaging Healthcare, Shanghai, China
| | - G Zhang
- United Imaging Healthcare, Shanghai, China
| | - C Yang
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - J Gu
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - X Lu
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - L Zhang
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - M Zeng
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China.
| |
Collapse
|
4
|
Lei HP, Jakovlić I, Zhou S, Liu X, Yan C, Jin X, Wang B, Li WX, Wang GT, Zhang D. Geography, phylogeny and host switch drive the coevolution of parasitic Gyrodactylus flatworms and their hosts. Parasit Vectors 2024; 17:42. [PMID: 38291495 PMCID: PMC10825989 DOI: 10.1186/s13071-023-06111-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/26/2023] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND Gyrodactylus is a lineage of monogenean flatworm ectoparasites exhibiting many features that make them a suitable model to study the host-parasite coevolutionary dynamics. Previous coevolutionary studies of this lineage mainly relied on low-power datasets (a small number of samples and a single molecular marker) and (now) outdated algorithms. METHODS To investigate the coevolutionary relationship of gyrodactylids and their fish hosts in high resolution, we used complete mitogenomes (including two newly sequenced Gyrodactylus species), a large number of species in the single-gene dataset, and four different coevolutionary algorithms. RESULTS The overall coevolutionary fit between the parasites and hosts was consistently significant. Multiple indicators confirmed that gyrodactylids are generally highly host-specific parasites, but several species could parasitize either multiple (more than 5) or phylogenetically distant fish hosts. The molecular dating results indicated that gyrodactylids tend to evolve towards high host specificity. Speciation by host switch was identified as a more important speciation mode than co-speciation. Assuming that the ancestral host belonged to Cypriniformes, we inferred four major host switch events to non-Cypriniformes hosts (mostly Salmoniformes), all of which occurred deep in the evolutionary history. Despite their relative rarity, these events had strong macroevolutionary consequences for gyrodactylid diversity. For example, in our dataset, 57.28% of all studied gyrodactylids parasitized only non-Cypriniformes hosts, which implies that the evolutionary history of more than half of all included lineages could be traced back to these major host switch events. The geographical co-occurrence of fishes and gyrodactylids determined the host use by these gyrodactylids, and geography accounted for most of the phylogenetic signal in host use. CONCLUSIONS Our findings suggest that the coevolution of Gyrodactylus flatworms and their hosts is largely driven by geography, phylogeny, and host switches.
Collapse
Affiliation(s)
- Hong-Peng Lei
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, and College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Ivan Jakovlić
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, and College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Shun Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Xiang Liu
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, and College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Chuan Yan
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, and College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Xiao Jin
- College of Fishery, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Guangdong Ocean University, Zhanjiang, China
| | - Bo Wang
- Shapotou Desert Research and Experimental Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 320 Donggang West Road, Lanzhou, 730000, People's Republic of China
| | - Wen-Xiang Li
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, and State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China
| | - Gui-Tang Wang
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, and State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China
| | - Dong Zhang
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, and College of Ecology, Lanzhou University, Lanzhou, 730000, China.
| |
Collapse
|
5
|
Yang Q, Salim L, Yan C, Gong Z. Correction: Rapid Analysis of Effects of Environmental Toxicants on Tumorigenesis and Inflammation Using a Transgenic Zebrafish Model for Liver Cancer. Mar Biotechnol (NY) 2023; 25:1220-1221. [PMID: 37768407 DOI: 10.1007/s10126-023-10250-3] [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] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Affiliation(s)
- Qiqi Yang
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, Singapore
| | - Lyana Salim
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, Singapore
| | - Chuan Yan
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, Singapore.
| |
Collapse
|
6
|
Chen J, Chen H, Zheng D, Yan C, Ye R, Wen L, Li Y. LI-RADS category 3, 4, and M observations: a multiple parameters diagnostic model for hepatocellular carcinoma. Acta Radiol 2023; 64:2977-2986. [PMID: 37753552 DOI: 10.1177/02841851231203830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
BACKGROUND Hepatic lesions categorized as LR-3, LR-4, and LR-M are challenging to accurately assess and diagnose. PURPOSE To combine potential clinical and/or magnetic resonance imaging (MRI) features for a more comprehensive hepatocellular carcinoma (HCC) versus non-HCC diagnosis for patients with LR-3, LR-4, and LR-M graded lesions. METHODS Data were consecutively retrieved from 82 at-risk patients with LR-3 (n = 43), LR-4 (n = 20), and LR-M (n = 23) lesions. Significant findings for the differentiation of HCC and non-HCC, including MRI features and clinical factors, were identified with univariable and multivariable analyses. The variables for a prediction model were selected through stepwise use of Akaike's Information Criterion (AIC) to build multivariable logistic regression model. RESULTS Serum alpha-fetoprotein (AFP) >16.2 ng/mL (odds ratio [OR] = 22.4; P = 0.006), septum (OR = 52.1; P = 0.011), and hepatobiliary phase (HBP) hypointensity (OR = 40.2; P = 0.001) were confirmed as independent predictors of HCC. When combining the three predictors and mild-moderate T2 hyperintensity, the model (AIC = 50.91) showed good accuracy with a C-index of 0.948. CONCLUSION In at-risk patients with LR-3, LR-4, or LR-M lesions, integrating AFP, septum, HBP hypointensity, and mild-moderate T2 hyperintensity achieved high diagnostic performance for the diagnosis of HCC.
Collapse
Affiliation(s)
- Jianwei Chen
- Department of Radiology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian Province, PR China
| | - Huizhen Chen
- Department of Good Clinical Practice, Fuzhou Pulmonary Hospital, Fuzhou, Fujian Province, PR China
| | - Dechun Zheng
- Department of Radiology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian Province, PR China
| | - Chuan Yan
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, PR China
| | - Rongping Ye
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, PR China
| | - Liting Wen
- Department of Radiology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian Province, PR China
| | - Yueming Li
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, PR China
| |
Collapse
|
7
|
Yao HW, Zhang P, Yan C, Li ZY, Zhang ZT. [Promote the high-quality development of gastrointestinal surgery with technological concept innovation]. Zhonghua Wai Ke Za Zhi 2023; 62:10-15. [PMID: 38044601 DOI: 10.3760/cma.j.cn112139-20231113-00222] [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: 12/05/2023]
Abstract
In the past 30 years, gastrointestinal surgery in China has made significant progress, which is reflected in the gradual standardization of clinical diagnosis and treatment, significant improvement in surgical quality, improvement in short-term and long-term postoperative outcomes, and continuous development of high-quality clinical research. At present, the spectrum of disease in gastrointestinal surgery has changed from traditional benign diseases to malignant diseases represented by gastric cancer and colorectal cancer, metabolic diseases represented by obesity and diabetes, and immune diseases represented by inflammatory bowel disease. It is necessary to carry out full-cycle management for patients. In the new era full of opportunities and challenges, surgeons must be driven by innovation in surgical technology, guided by high-quality clinical research and guaranteed by standardized diagnosis and treatment of diseases, to continue to promote the high-quality development of gastrointestinal surgery in China.
Collapse
Affiliation(s)
- H W Yao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing 100050, China
| | - P Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing 100050, China
| | - C Yan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z Y Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z T Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing 100050, China
| |
Collapse
|
8
|
Yan C, Yang Q, Huo X, Li H, Zhou L, Gong Z. Retraction Note: Chemical inhibition reveals differential requirements of signaling pathways in krasV12- and Myc-induced liver tumors in transgenic zebrafish. Sci Rep 2023; 13:21031. [PMID: 38030883 PMCID: PMC10686997 DOI: 10.1038/s41598-023-48297-w] [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: 12/01/2023] Open
Affiliation(s)
- Chuan Yan
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- National University of Singapore graduate school for integrative sciences and engineering, National University of Singapore, Singapore, Singapore
| | - Qiqi Yang
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Xiaojing Huo
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Hankun Li
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Li Zhou
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore.
- National University of Singapore graduate school for integrative sciences and engineering, National University of Singapore, Singapore, Singapore.
| |
Collapse
|
9
|
Yan C, Guo B, Keller LM, Suh JH, Xia P. Dosimetric Quality of Artificial Intelligence Based Organ at Risk Segmentation. Int J Radiat Oncol Biol Phys 2023; 117:e493. [PMID: 37785555 DOI: 10.1016/j.ijrobp.2023.06.1728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) to compare dosimetric parameters between Artificial intelligence (AI) generated organ at risks (OAR) and Radiation Oncologist approved OARs and evaluation of appropriateness unedited AI- OARs in routine clinical plan optimization and evaluation. MATERIALS/METHODS The OARs (lung, spinal cord and heart) for twenty SBRT (stereotactic body radiotherapy) lung CT simulation datasets were derived by AI based segmentation algorithms. These AI- OARs were edited by a staff Radiation Oncologist and then subjected to our SBRT peer-review process at our institution. A SBRT plan based on the approved contours was created. Dosimetric parameters for the unedited AI-OARs and edited physician-approved OARs were then compared. RESULTS Lung V20 differences between AI- OAR and physician- OAR varied from 0.01% - 0.7% with a mean value of 0.1% difference (p-value 0.004). Spinal cord D0.03cc varied from 0.02 Gy - 0.9 Gy with a mean value of 0.3 Gy difference (p-value 0.002). Heart D0.03cc varied from 0.01 Gy - 4.3 Gy with mean value 0.9 Gy difference (p-value 0.02). CONCLUSION Dosimetric parameters for AI-based lung, spinal cord and heart OARs vs physician approved OARs were different, overall, the differences were generally small. These differences are likely on par with inter-observer differences seen between individual radiation oncologists. Unedited OARs have the promise for routine use in plan optimization and evaluation to further improve efficiency.
Collapse
Affiliation(s)
- C Yan
- Cleveland Clinic Foundation, Cleveland, OH
| | - B Guo
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | | | - J H Suh
- Department of Radiation Oncology, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH
| | - P Xia
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| |
Collapse
|
10
|
Liu R, Zhang Y, Zhang H, Cao L, Yan C. A global evaluation of the associations between long-term dynamics of seed falls and rodents. Integr Zool 2023; 18:831-842. [PMID: 35636774 DOI: 10.1111/1749-4877.12665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
One classic system of pulsed resource and animal population is mast seeding and population dynamics of seed-eating rodents in forests. However, we still lack an understanding of the global patterns regarding the contributions of seed falls to rodent outbreaks or population dynamics. We analyzed a global dataset of coupled long-term time series of seed abundances and rodent populations from published literature, including 66 and 89 time series (156 rodent-seed pairs from 37 studies) for rodent and seed abundances, respectively. We found only half of the examined rodent populations showed statistically significant coincidence between rodent outbreak and mast-seeding years. Over all the coupled time series, seed abundance was found to positively correlate with rodent abundance with a one-year lag, and the relative importance of seed abundance was much lower than that of density dependence in affecting rodent population growth rates. We also found the relative importance of seed abundance decreased, but that of rodent density dependence increased with the latitude of study. For the first time, our work provides a global pattern on the associations between seed falls and rodent population dynamics mostly in mid- and high-latitude forests, and highlights the necessity of more long-term studies on this subject in more forest ecosystems.
Collapse
Affiliation(s)
- Rui Liu
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology & School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Yongjun Zhang
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology & School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Hongmao Zhang
- Institute of Evolution and Ecology, College of Life Sciences, Central China Normal University, Wuhan, China
| | - Lin Cao
- College of Ecology and Environmental Science, Yunnan University, Kunming, China
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology and Institute of Biodiversity, Yunnan University, Kunming, China
| | - Chuan Yan
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology & School of Life Sciences, Lanzhou University, Lanzhou, China
| |
Collapse
|
11
|
Han Z, Dai H, Chen X, Gao L, Chen X, Yan C, Ye R, Li Y. Delta-radiomics models based on multi-phase contrast-enhanced magnetic resonance imaging can preoperatively predict glypican-3-positive hepatocellular carcinoma. Front Physiol 2023; 14:1138239. [PMID: 37601639 PMCID: PMC10435992 DOI: 10.3389/fphys.2023.1138239] [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: 01/05/2023] [Accepted: 07/14/2023] [Indexed: 08/22/2023] Open
Abstract
Objectives: The aim of this study is to investigate the value of multi-phase contrast-enhanced magnetic resonance imaging (CE-MRI) based on the delta radiomics model for identifying glypican-3 (GPC3)-positive hepatocellular carcinoma (HCC). Methods: One hundred and twenty-six patients with pathologically confirmed HCC (training cohort: n = 88 and validation cohort: n = 38) were retrospectively recruited. Basic information was obtained from medical records. Preoperative multi-phase CE-MRI images were reviewed, and the 3D volumes of interest (VOIs) of the whole tumor were delineated on non-contrast T1-weighted imaging (T1), arterial phase (AP), portal venous phase (PVP), delayed phase (DP), and hepatobiliary phase (HBP). One hundred and seven original radiomics features were extracted from each phase, and delta-radiomics features were calculated. After a two-step feature selection strategy, radiomics models were built using two classification algorithms. A nomogram was constructed by combining the best radiomics model and clinical risk factors. Results: Serum alpha-fetoprotein (AFP) (p = 0.013) was significantly related to GPC3-positive HCC. The optimal radiomics model is composed of eight delta-radiomics features with the AUC of 0.805 and 0.857 in the training and validation cohorts, respectively. The nomogram integrated the radiomics score, and AFP performed excellently (training cohort: AUC = 0.844 and validation cohort: AUC = 0.862). The calibration curve showed good agreement between the nomogram-predicted probabilities and GPC3 actual expression in both training and validation cohorts. Decision curve analysis further demonstrates the clinical practicality of the nomogram. Conclusion: Multi-phase CE-MRI based on the delta-radiomics model can non-invasively predict GPC3-positive HCC and can be a useful method for individualized diagnosis and treatment.
Collapse
Affiliation(s)
- Zewen Han
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
- School of Medical Imaging, Fujian Medical University, Fuzhou, China
| | - Hanting Dai
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
- School of Medical Imaging, Fujian Medical University, Fuzhou, China
| | - Xiaolin Chen
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Lanmei Gao
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Xiaojie Chen
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Chuan Yan
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Rongping Ye
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Yueming Li
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
- Key Laboratory of Radiation Biology (Fujian Medical University), Fujian Province University, Fuzhou, Fujian, China
| |
Collapse
|
12
|
Yang J, Bergdorf K, Yan C, Luo W, Chen SC, Ayers GD, Liu Q, Liu X, Boothby M, Weiss VL, Groves SM, Oleskie AN, Zhang X, Maeda DY, Zebala JA, Quaranta V, Richmond A. CXCR2 expression during melanoma tumorigenesis controls transcriptional programs that facilitate tumor growth. Mol Cancer 2023; 22:92. [PMID: 37270599 PMCID: PMC10239119 DOI: 10.1186/s12943-023-01789-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/16/2023] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND Though the CXCR2 chemokine receptor is known to play a key role in cancer growth and response to therapy, a direct link between expression of CXCR2 in tumor progenitor cells during induction of tumorigenesis has not been established. METHODS To characterize the role of CXCR2 during melanoma tumorigenesis, we generated tamoxifen-inducible tyrosinase-promoter driven BrafV600E/Pten-/-/Cxcr2-/- and NRasQ61R/INK4a-/-/Cxcr2-/- melanoma models. In addition, the effects of a CXCR1/CXCR2 antagonist, SX-682, on melanoma tumorigenesis were evaluated in BrafV600E/Pten-/- and NRasQ61R/INK4a-/- mice and in melanoma cell lines. Potential mechanisms by which Cxcr2 affects melanoma tumorigenesis in these murine models were explored using RNAseq, mMCP-counter, ChIPseq, and qRT-PCR; flow cytometry, and reverse phosphoprotein analysis (RPPA). RESULTS Genetic loss of Cxcr2 or pharmacological inhibition of CXCR1/CXCR2 during melanoma tumor induction resulted in key changes in gene expression that reduced tumor incidence/growth and increased anti-tumor immunity. Interestingly, after Cxcr2 ablation, Tfcp2l1, a key tumor suppressive transcription factor, was the only gene significantly induced with a log2 fold-change greater than 2 in these three different melanoma models. CONCLUSIONS Here, we provide novel mechanistic insight revealing how loss of Cxcr2 expression/activity in melanoma tumor progenitor cells results in reduced tumor burden and creation of an anti-tumor immune microenvironment. This mechanism entails an increase in expression of the tumor suppressive transcription factor, Tfcp2l1, along with alteration in the expression of genes involved in growth regulation, tumor suppression, stemness, differentiation, and immune modulation. These gene expression changes are coincident with reduction in the activation of key growth regulatory pathways, including AKT and mTOR.
Collapse
Affiliation(s)
- J Yang
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - K Bergdorf
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - C Yan
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - W Luo
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - S C Chen
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - G D Ayers
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - Q Liu
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - X Liu
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - M Boothby
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - V L Weiss
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - S M Groves
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - A N Oleskie
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - X Zhang
- Department of Genomic Medicine, MD Anderson Cancer Center, University of Texas, Houston, TX, 77030, USA
| | - D Y Maeda
- Syntrix Pharmaceuticals, Auburn, WA, 98001, USA
| | - J A Zebala
- Syntrix Pharmaceuticals, Auburn, WA, 98001, USA
| | - V Quaranta
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
- Department of Biochemistry, Vanderbilt University, TN, 37240, Nashville, USA
| | - A Richmond
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA.
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA.
| |
Collapse
|
13
|
Yang Q, Yan C, Gong Z. Author Correction: Activation of liver stromal cells is associated with male-biased liver tumor initiation in xmrk and Myc transgenic zebrafish. Sci Rep 2023; 13:8825. [PMID: 37258609 DOI: 10.1038/s41598-023-35711-6] [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: 06/02/2023] Open
Affiliation(s)
- Qiqi Yang
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Chuan Yan
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- National University of Singapore graduate school for integrative sciences and engineering, National University of Singapore, Singapore, Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore.
- National University of Singapore graduate school for integrative sciences and engineering, National University of Singapore, Singapore, Singapore.
| |
Collapse
|
14
|
Rogers W, Keek SA, Beuque M, Lavrova E, Primakov S, Wu G, Yan C, Sanduleanu S, Gietema HA, Casale R, Occhipinti M, Woodruff HC, Jochems A, Lambin P. Towards texture accurate slice interpolation of medical images using PixelMiner. Comput Biol Med 2023; 161:106701. [PMID: 37244145 DOI: 10.1016/j.compbiomed.2023.106701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 08/06/2022] [Accepted: 11/23/2022] [Indexed: 05/29/2023]
Abstract
Quantitative image analysis models are used for medical imaging tasks such as registration, classification, object detection, and segmentation. For these models to be capable of making accurate predictions, they need valid and precise information. We propose PixelMiner, a convolution-based deep-learning model for interpolating computed tomography (CT) imaging slices. PixelMiner was designed to produce texture-accurate slice interpolations by trading off pixel accuracy for texture accuracy. PixelMiner was trained on a dataset of 7829 CT scans and validated using an external dataset. We demonstrated the model's effectiveness by using the structural similarity index (SSIM), peak signal to noise ratio (PSNR), and the root mean squared error (RMSE) of extracted texture features. Additionally, we developed and used a new metric, the mean squared mapped feature error (MSMFE). The performance of PixelMiner was compared to four other interpolation methods: (tri-)linear, (tri-)cubic, windowed sinc (WS), and nearest neighbor (NN). PixelMiner produced texture with a significantly lowest average texture error compared to all other methods with a normalized root mean squared error (NRMSE) of 0.11 (p < .01), and the significantly highest reproducibility with a concordance correlation coefficient (CCC) ≥ 0.85 (p < .01). PixelMiner was not only shown to better preserve features but was also validated using an ablation study by removing auto-regression from the model and was shown to improve segmentations on interpolated slices.
Collapse
Affiliation(s)
- W Rogers
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - S A Keek
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - M Beuque
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - E Lavrova
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands; GIGA Cyclotron Research Centre in Vivo Imaging, University of Liège, Liège, Belgium
| | - S Primakov
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - G Wu
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - C Yan
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - S Sanduleanu
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - H A Gietema
- Department of Radiology and Nuclear Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - R Casale
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands; Department of Radiology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - M Occhipinti
- Radiomics, Clos Chanmurly 13, 4000, Liege, Belgium
| | - H C Woodruff
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands; Department of Radiology and Nuclear Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - A Jochems
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - P Lambin
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands; Department of Radiology and Nuclear Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, the Netherlands.
| |
Collapse
|
15
|
Yan C, Shan F, Li ZY. [Prevalence of colorectal cancer in 2020: a comparative analysis between China and the world]. Zhonghua Zhong Liu Za Zhi 2023; 45:221-229. [PMID: 36944543 DOI: 10.3760/cma.j.cn112152-20221008-00682] [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] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective: To demonstrate the disease burden and epidemiological characteristics of colorectal cancer in different regions by analyzing the incidence and mortality data in China and worldwide in 2020. Methods: Estimation of the incidence and mortality data of colorectal cancer were obtained from the GLOBOCAN 2020 database. The incidence, death, age standardized incidence rate (ASIR) and age standardized mortality rate (ASMR) of colorectal cancer in China and 20 regions in the world were compared. The correlation between the Human Development Index (HDI) and ASIR/ASMR was analyzed. Results: In 2020, the number of new cases of colorectal cancer in the world reached 1 931 600, and the number of deaths reached 935 200. The incidence and mortality in all regions of the world continued to rise in the age group above 50 years old. The morbidity and mortality in male were higher than those in female. East Asia ranked the highest number of incidence cases and deaths in the world, which were 740 000 and 360 100 respectively. There were significant differences in incidence and mortality among regions in the world. The highest ASIR and ASMR were observed in Northern Europe (33.61/100 000) and Eastern Europe (14.53/100 000), whereas the lowest ASIR and ASMR were both observed in South-Central Asia (5.46/100 000 and 3.16/100 000). HDI had significant exponential relationship with ASIR (r(2)=0.59, P<0.001) and ASMR (r(2)=0.38, P<0.001). There were 555 500 new cases and 286 200 death cases of colorectal cancer in China, accounting for about 30% of the world and more than 75% of East Asia. The ASIR of China was 24.07/100 000, ranking at the medium level, while the ASMR was 12.07/100 000, ranking at the high level of world. Conclusion: The incidence and mortality of colorectal cancer are highly correlated with HDI. China is one of the countries with the heaviest disease burden of colorectal cancer in the world.
Collapse
Affiliation(s)
- C Yan
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - F Shan
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z Y Li
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| |
Collapse
|
16
|
Yang J, Bergdorf K, Yan C, Luo W, Chen SC, Ayers D, Liu Q, Liu X, Boothby M, Groves SM, Oleskie AN, Zhang X, Maeda DY, Zebala JA, Quaranta V, Richmond A. CXCR2 expression during melanoma tumorigenesis controls transcriptional programs that facilitate tumor growth. bioRxiv 2023:2023.02.22.529548. [PMID: 36865260 PMCID: PMC9980137 DOI: 10.1101/2023.02.22.529548] [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] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Background Though the CXCR2 chemokine receptor is known to play a key role in cancer growth and response to therapy, a direct link between expression of CXCR2 in tumor progenitor cells during induction of tumorigenesis has not been established. Methods To characterize the role of CXCR2 during melanoma tumorigenesis, we generated tamoxifen-inducible tyrosinase-promoter driven Braf V600E /Pten -/- /Cxcr2 -/- and NRas Q61R /INK4a -/- /Cxcr2 -/- melanoma models. In addition, the effects of a CXCR1/CXCR2 antagonist, SX-682, on melanoma tumorigenesis were evaluated in Braf V600E /Pten -/- and NRas Q61R /INK4a -/- mice and in melanoma cell lines. Potential mechanisms by which Cxcr2 affects melanoma tumorigenesis in these murine models were explored using RNAseq, mMCP-counter, ChIPseq, and qRT-PCR; flow cytometry, and reverse phosphoprotein analysis (RPPA). Results Genetic loss of Cxcr2 or pharmacological inhibition of CXCR1/CXCR2 during melanoma tumor induction resulted in key changes in gene expression that reduced tumor incidence/growth and increased anti-tumor immunity. Interestingly, after Cxcr2 ablation, Tfcp2l1 , a key tumor suppressive transcription factor, was the only gene significantly induced with a log 2 fold-change greater than 2 in these three different melanoma models. Conclusions Here, we provide novel mechanistic insight revealing how loss of Cxcr2 expression/activity in melanoma tumor progenitor cells results in reduced tumor burden and creation of an anti-tumor immune microenvironment. This mechanism entails an increase in expression of the tumor suppressive transcription factor, Tfcp2l1, along with alteration in the expression of genes involved in growth regulation, tumor suppression, stemness, differentiation, and immune modulation. These gene expression changes are coincident with reduction in the activation of key growth regulatory pathways, including AKT and mTOR.
Collapse
|
17
|
She W, Gu J, Holyoak M, Yan C, Qi J, Wan X, Liu S, Xu L, Roberts NJ, Zhang Z, Jiang G. Impacts of top predators and humans on the mammal communities of recovering temperate forest regions. Sci Total Environ 2023; 862:160812. [PMID: 36493822 DOI: 10.1016/j.scitotenv.2022.160812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/05/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Top predators are important drivers in shaping ecological community structure via top-down effects. However, the ecological consequences and mechanisms of top predator loss under accelerated human impacts have rarely been quantitatively assessed due to the limited availability of long-term community data. With increases in top predator populations in northern China over the past two decades, forests with varying densities of top predators and humans provide an opportunity to study their ecological effects on mammal communities. We hypothesized a priori of conceptual models and tested these using structural equation models (SEMs) with multi-year camera trap data, aiming to reveal the underlying independent ecological effects of top predators (tigers, bears, and leopards) and humans on mammal communities. We used random forest models and correlations among species pairs to validate results. We found that top predator reduction could be related to augmented populations of large ungulates ("large ungulate release") and mesopredators ("mesopredator release"), consistent with observations of mammal communities in other ecosystems. Additionally, top predator reduction could be related to reduced small mammal abundance. Hierarchical SEMs identified three bottom-up pathways from forest quality to human activities, large ungulates, and some small mammals, and five top-down pathways from human activities and top predators to some small mammals, large ungulates, and mesopredators. Furthermore, our results suggest that humans showed predominant top-down effects on multiple functional groups, partially replacing the role of top predators, rather than be mediated by them; effects of humans and top predators appeared largely independent. Effects of humans on top predators were non-significant. This study provides novel insights into the effects of top predators and humans as super-predators on mammal communities in forest ecosystems and presents cues of bottom-up effects that can be translated into actionable management plans for improving forest quality, thereby supporting top predator recovery and work/life activities of local people.
Collapse
Affiliation(s)
- Wen She
- Feline Research Center of National Forestry and Grassland Administration, College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Northeast Asia Biodiversity Research Center, Northeast Forestry University, Harbin 150040, China
| | - Jiayin Gu
- Feline Research Center of National Forestry and Grassland Administration, College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Northeast Asia Biodiversity Research Center, Northeast Forestry University, Harbin 150040, China
| | - Marcel Holyoak
- Department of Environmental Science and Policy, University of California, Davis, CA 95616, USA
| | - Chuan Yan
- Institute of Innovation Ecology, Lanzhou University, Lanzhou 730000, China
| | - Jinzhe Qi
- Feline Research Center of National Forestry and Grassland Administration, College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Northeast Asia Biodiversity Research Center, Northeast Forestry University, Harbin 150040, China
| | - Xinru Wan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shuyan Liu
- Feline Research Center of National Forestry and Grassland Administration, College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Northeast Asia Biodiversity Research Center, Northeast Forestry University, Harbin 150040, China
| | - Lei Xu
- Vanke School of Public Health, Tsinghua University, Beijing 100083, China
| | - Nathan James Roberts
- Feline Research Center of National Forestry and Grassland Administration, College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Northeast Asia Biodiversity Research Center, Northeast Forestry University, Harbin 150040, China
| | - Zhibin Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Guangshun Jiang
- Feline Research Center of National Forestry and Grassland Administration, College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Northeast Asia Biodiversity Research Center, Northeast Forestry University, Harbin 150040, China.
| |
Collapse
|
18
|
Zhao X, Qiu X, Xue H, Liu S, Liang D, Yan C, Chen W, Wang Y, Zhou G. Conjugated and Non-conjugated Polymers Containing Two-Electron Redox Dihydrophenazines for Lithium-Organic Batteries. Angew Chem Int Ed Engl 2023; 62:e202216713. [PMID: 36515468 DOI: 10.1002/anie.202216713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/15/2022]
Abstract
Organic p-type cathode materials have recently attracted increasing attention due to their higher redox potentials and rate capabilities in comparison to n-type cathodes. However, most of the p-type cathodes based on one-electron redox still suffer from limited stability and low specific capacity (<150 mAh g-1 ). Herein, two polymers, conjugated poly(diethyldihydrophenazine vinylene) (CPP) and non-conjugated poly(diethyldihydrophenazine ethylidene) (NCPP) containing two-electron redox dihydrophenazine, have been developed as p-type cathode materials. It is experimentally and theoretically found that the conjugated linkage among the redox centers in polymer CPP is more favorable for the effective charge delocalization on the conjugated polymer backbone and the sufficient oxidation in the higher potential region (3.3-4.2 V vs. Li/Li+ ). Consequently, the CPP cathode displays a higher reversible specific capacity of 184 mAh g-1 with excellent cycling stability.
Collapse
Affiliation(s)
- Xiang Zhao
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China
| | - Xuan Qiu
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Haodong Xue
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China
| | - Si Liu
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China
| | - Dingli Liang
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China
| | - Chuan Yan
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China
| | - Weinan Chen
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China
| | - Yonggang Wang
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Gang Zhou
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China
| |
Collapse
|
19
|
Chen W, Liu S, Ren Y, Xie S, Yan C, Zhou Z, Zhou G. Conjugation Extension and Halochromic Behaviors of S-Fused Polycyclic Aromatic Hydrocarbons Bearing Cyclopenta[b]thiopyran Moieties. Chemistry 2023; 29:e202203238. [PMID: 36376244 DOI: 10.1002/chem.202203238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 11/16/2022]
Abstract
Three S-fused polycyclic aromatic hydrocarbons (PAHs) bearing cyclopenta[b]thiopyran moieties have been designed and successfully synthesized. With the conjugation extension, the absorption onset of the longest PAH reaches 1110 nm. All the three S-fused PAHs exhibit significant halochromic properties in both solution and solid states. Upon protonation, the proton is incorporated on the cyclopentadiene ring while the positive charge is localized on the thiopyrylium ring. Moreover, no significant difference can be found for the two shorter PAHs upon the protonation by different organic acids, such as trifluoroacetic acid (TFA) and trifluoromethanesulfonic acid (TfOH), while the longest PAH can be only mono-protonated by TFA but di-protonated by stronger TfOH. Furthermore, after protonation, the non-emissive S-fused PAHs exhibit strong fluorescence and can be regenerated by simply neutralization with triethylamine. The enhanced emission of mono-protonated products stem from S2 →S0 transitions, which disobey the Kasha's rule.
Collapse
Affiliation(s)
- Weinan Chen
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Si Liu
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Yingjian Ren
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Shoudong Xie
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Chuan Yan
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Zhanglang Zhou
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Gang Zhou
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| |
Collapse
|
20
|
Yan C, Fan X, Fan J, Yu L, Wang N, Chen L, Li X. HyFormer: Hybrid Transformer and CNN for Pixel-Level Multispectral Image Land Cover Classification. Int J Environ Res Public Health 2023; 20:3059. [PMID: 36833777 PMCID: PMC9967485 DOI: 10.3390/ijerph20043059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
To effectively solve the problems that most convolutional neural networks cannot be applied to the pixelwise input in remote sensing (RS) classification and cannot adequately represent the spectral sequence information, we propose a new multispectral RS image classification framework called HyFormer based on Transformer. First, a network framework combining a fully connected layer (FC) and convolutional neural network (CNN) is designed, and the 1D pixelwise spectral sequences obtained from the fully connected layers are reshaped into a 3D spectral feature matrix for the input of CNN, which enhances the dimensionality of the features through FC as well as increasing the feature expressiveness, and can solve the problem that 2D CNN cannot achieve pixel-level classification. Secondly, the features of the three levels of CNN are extracted and combined with the linearly transformed spectral information to enhance the information expression capability, and also used as the input of the transformer encoder to improve the features of CNN using the powerful global modelling capability of the Transformer, and finally the skip connection of the adjacent encoders to enhance the fusion between different levels of information. The pixel classification results are obtained by MLP Head. In this paper, we mainly focus on the feature distribution in the eastern part of Changxing County and the central part of Nanxun District, Zhejiang Province, and conduct experiments based on Sentinel-2 multispectral RS images. The experimental results show that the overall accuracy of HyFormer for the study area classification in Changxing County is 95.37% and that of Transformer (ViT) is 94.15%. The experimental results show that the overall accuracy of HyFormer for the study area classification in Nanxun District is 95.4% and that of Transformer (ViT) is 94.69%, and the performance of HyFormer on the Sentinel-2 dataset is better than that of the Transformer.
Collapse
Affiliation(s)
- Chuan Yan
- School of Automation, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Xiangsuo Fan
- School of Automation, Guangxi University of Science and Technology, Liuzhou 545006, China
- Guangxi Collaborative Innovation Centre for Earthmoving Machinery, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Jinlong Fan
- National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China
| | - Ling Yu
- School of Automation, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Nayi Wang
- School of Automation, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Lin Chen
- School of Automation, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Xuyang Li
- School of Automation, Guangxi University of Science and Technology, Liuzhou 545006, China
| |
Collapse
|
21
|
Liao Y, Lei R, Weng X, Yan C, Fu J, Wei G, Zhang C, Wang M, Wang H. Uranium capture by a layered 2D/2D niobium phosphate/holey graphene architecture via an electro-adsorption and electrocatalytic reduction coupling process. J Hazard Mater 2023; 442:130054. [PMID: 36182892 DOI: 10.1016/j.jhazmat.2022.130054] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/12/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
As an energy-efficient and eco-friendly technique, capacitive deionization (CDI) has shown great potential for uranium (U(VI)) capture recently. However, extracting U(VI) with high kinetics, capacity and selectivity remains a major challenge due to the current surface active sites-based material and co-existing ions in aqueous solution. Here we rationally designed a layered 2D/2D niobium phosphate/holey graphene (HGNbP) electrode material, and originally demonstrated its efficient U(VI) capture ability via an electro-adsorption and electrocatalytic reduction coupling process. The less-accumulative loose layered architecture, open polycrystalline construction of niobium phosphate with active phosphate sites, and rich in-plane nano-pores on conductive graphene nanosheets endowed HGNbP with fast charge/ion transport, high electroconductivity and superior pseudocapacitance, which enabled U(VI) ions first to be electro-adsorbed, then physico-chemical adsorbed, and finally electrocatalysis reduced/deposited onto electrode surface without the limitation of active sites under a low potential of 1.2 V. Based on these virtues, the HGNbP exhibited a fast adsorption kinetics, with a high removal rate of 99.9% within 30 min in 50 mg L-1 U(VI) solution, and a high adsorption capacity up to 1340 mg g-1 in 1000 mg L-1 U(VI) solution. Furthermore, the good recyclability and selectivity towards U(VI) were also realized.
Collapse
Affiliation(s)
- Yun Liao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China; Hunan key laboratory for the design and application of actinide complexes, University of South China, Hengyang, Hunan 421001, PR China.
| | - Ruilin Lei
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Xiaofang Weng
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Chuan Yan
- School of Nuclear Science and Technology, University of South China, Hengyang, Hunan 421001, China
| | - Jiaxi Fu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Guoxing Wei
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Chen Zhang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Meng Wang
- School of Nuclear Science and Technology, University of South China, Hengyang, Hunan 421001, China.
| | - Hongqing Wang
- Hunan key laboratory for the design and application of actinide complexes, University of South China, Hengyang, Hunan 421001, PR China.
| |
Collapse
|
22
|
Zhao X, Qiu X, Xue H, Liu S, Liang D, Yan C, Chen W, Wang Y, Zhou G. Conjugated and Non‐conjugated Polymers Containing Two‐Electron Redox Dihydrophenazines for Lithium‐Organic Batteries. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202216713] [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: 12/15/2022]
Affiliation(s)
- Xiang Zhao
- Fudan University Lab of Advanced Materials CHINA
| | - Xuan Qiu
- Fudan University Department of Chemsitry CHINA
| | - Haodong Xue
- Fudan University Lab of Advanced Materials CHINA
| | - Si Liu
- Fudan University Lab of Advanced Materials CHINA
| | - Dingli Liang
- Fudan University Lab of Advanced Materials CHINA
| | - Chuan Yan
- Fudan University Lab of Advanced Materials CHINA
| | - Weinan Chen
- Fudan University Lab of Advanced Materials CHINA
| | - Yonggang Wang
- Fudan University Handan Road 220 200433 Shanghai CHINA
| | - Gang Zhou
- Fudan University Lab of Advanced Materials CHINA
| |
Collapse
|
23
|
Laukkanen S, Veloso A, Yan C, Oksa L, Alpert EJ, Do D, Hyvärinen N, McCarthy K, Adhikari A, Yang Q, Iyer S, Garcia SP, Pello A, Ruokoranta T, Moisio S, Adhikari S, Yoder JA, Gallagher K, Whelton L, Allen JR, Jin AH, Loontiens S, Heinäniemi M, Kelliher M, Heckman CA, Lohi O, Langenau DM. Therapeutic targeting of LCK tyrosine kinase and mTOR signaling in T-cell acute lymphoblastic leukemia. Blood 2022; 140:1891-1906. [PMID: 35544598 PMCID: PMC10082361 DOI: 10.1182/blood.2021015106] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 04/19/2022] [Indexed: 11/20/2022] Open
Abstract
Relapse and refractory T-cell acute lymphoblastic leukemia (T-ALL) has a poor prognosis, and new combination therapies are sorely needed. Here, we used an ex vivo high-throughput screening platform to identify drug combinations that kill zebrafish T-ALL and then validated top drug combinations for preclinical efficacy in human disease. This work uncovered potent drug synergies between AKT/mTORC1 (mammalian target of rapamycin complex 1) inhibitors and the general tyrosine kinase inhibitor dasatinib. Importantly, these same drug combinations effectively killed a subset of relapse and dexamethasone-resistant zebrafish T-ALL. Clinical trials are currently underway using the combination of mTORC1 inhibitor temsirolimus and dasatinib in other pediatric cancer indications, leading us to prioritize this therapy for preclinical testing. This combination effectively curbed T-ALL growth in human cell lines and primary human T-ALL and was well tolerated and effective in suppressing leukemia growth in patient-derived xenografts (PDX) grown in mice. Mechanistically, dasatinib inhibited phosphorylation and activation of the lymphocyte-specific protein tyrosine kinase (LCK) to blunt the T-cell receptor (TCR) signaling pathway, and when complexed with mTORC1 inhibition, induced potent T-ALL cell killing through reducing MCL-1 protein expression. In total, our work uncovered unexpected roles for the LCK kinase and its regulation of downstream TCR signaling in suppressing apoptosis and driving continued leukemia growth. Analysis of a wide array of primary human T-ALLs and PDXs grown in mice suggest that combination of temsirolimus and dasatinib treatment will be efficacious for a large fraction of human T-ALLs.
Collapse
Affiliation(s)
- Saara Laukkanen
- Tampere Center for Child, Adolescent, and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Alexandra Veloso
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Chuan Yan
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Laura Oksa
- Tampere Center for Child, Adolescent, and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Eric J. Alpert
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Daniel Do
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Noora Hyvärinen
- Tampere Center for Child, Adolescent, and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Karin McCarthy
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Abhinav Adhikari
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Qiqi Yang
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Sowmya Iyer
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Sara P. Garcia
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Annukka Pello
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | - Tanja Ruokoranta
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
| | - Sanni Moisio
- The Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Sadiksha Adhikari
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | - Jeffrey A. Yoder
- Department of Molecular Biomedical Sciences, Comparative Medicine Institute, and Center for Human Health and the Environment, North Carolina State University, Raleigh, NC
| | - Kayleigh Gallagher
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA
| | - Lauren Whelton
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - James R. Allen
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Alex H. Jin
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| | - Siebe Loontiens
- Cancer Research Institute Ghent and Center for Medical Genetics, Ghent, Belgium
| | - Merja Heinäniemi
- The Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Michelle Kelliher
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA
| | - Caroline A. Heckman
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | - Olli Lohi
- Tampere Center for Child, Adolescent, and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Tampere University Hospital, Tays Cancer Center, Tampere, Finland
| | - David M. Langenau
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, MA
- Harvard Stem Cell Institute, Boston, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
| |
Collapse
|
24
|
Ming B, Yan C, Xie S, Liu S, Ren Y, Zong H, Chen W, Zhou G. Facile Synthesis of
S‐Fused Multi‐Membered
Polycyclic Heterocycles: A Construction Strategy towards Thermally Stable Thiepine Derivatives. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Binbin Ming
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200438 P. R. China
| | - Chuan Yan
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200438 P. R. China
| | - Shoudong Xie
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200438 P. R. China
| | - Si Liu
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200438 P. R. China
| | - Yingjian Ren
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200438 P. R. China
| | - Hao Zong
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200438 P. R. China
| | - Weinan Chen
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200438 P. R. China
| | - Gang Zhou
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200438 P. R. China
| |
Collapse
|
25
|
Eng T, Wei Y, Qin Q, Yan C, Yang Q, Veloso A, McCarthy K, Langenau D. Abstract A002: Dynamic single cell imaging of cancer stem cells and clonality in fusion-negative rhabdomyosarcoma. Clin Cancer Res 2022. [DOI: 10.1158/1557-3265.sarcomas22-a002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Rhabdomyosarcoma (RMS) accounts for 50% of all soft-tissue childhood sarcomas and is characterized by tumor cells that molecularly and morphologically resemble undifferentiated skeletal muscle. Treatment involves an aggressive regimen of chemotherapy followed by surgical resection and/or radiation therapy. Although survival rates can be as high as 70-90% in low-risk or localized disease, patients with oligoclonal or relapsed disease have extremely poor prognoses. Thus, there is a clinical imperative to identify novel therapeutic targets, particularly ones that could reduce clonality and suppress cancer stem cell self-renewal. Our lab has recently shown that fusion-negative (FN-)RMS contain four dominant tumor cell states: proliferative, ground, mesenchymal cancer stem cells (mCSCs) and differentiated muscle. Importantly, the mCSCs are largely quiescent under normal growth conditions but re-enter the cell cycle to promote tumor growth following stress. This suggests that mCSCs are likely responsible for driving therapy resistance and relapse. Building on our previous successes in live imaging cancer stem cells using transgenic zebrafish models that express fluorophores under control of developmentally restricted muscle promoters, we are now developing similar approaches to drive fluorescent protein expression in human FN-RMS cell lines to trace lineage fate and to witness the division history of mCSCs in real time. Using a combination of CRISPR/Cas9 gene inactivation and these newly developed tools, we are poised to identify new self-renewal pathways by the direct, live-cell imaging of FN-RMS engrafted into optically clear, immune-deficient zebrafish. In addition, we are also using tumor clonality as a surrogate of increased tumor aggression and cancer stem cell potential in the zebrafish RAS-induced RMS model. We have adapted the transgenic zebrafish model of kRASG12D-induced RMS to analyze tumor clonality using multispectral Zebrabow and GESTALT, a CRISPR barcoding technique that tracks cell fate. Using RMS-specific gene expression datasets that are associated with cancer stem cells, we are now screening for genes that elevate tumor clonality, increase tumor penetrance and accelerate tumor growth. Ultimately, by developing these lineage tracing tools in both human RMS cell lines and our transgenic Zebrafish RMS model, we will identify new modulators of the mCSC transcriptional cell states and possible therapeutic targets.
Citation Format: Tiffany Eng, Yun Wei, Qian Qin, Chuan Yan, Qiqi Yang, Alexandra Veloso, Karin McCarthy, David Langenau. Dynamic single cell imaging of cancer stem cells and clonality in fusion-negative rhabdomyosarcoma [abstract]. In: Proceedings of the AACR Special Conference: Sarcomas; 2022 May 9-12; Montreal, QC, Canada. Philadelphia (PA): AACR; Clin Cancer Res 2022;28(18_Suppl):Abstract nr A002.
Collapse
Affiliation(s)
- Tiffany Eng
- 1Massachusetts General Hospital, Charlestown, MA,
| | - Yun Wei
- 1Massachusetts General Hospital, Charlestown, MA,
| | - Qian Qin
- 1Massachusetts General Hospital, Charlestown, MA,
| | - Chuan Yan
- 1Massachusetts General Hospital, Charlestown, MA,
| | - Qiqi Yang
- 1Massachusetts General Hospital, Charlestown, MA,
| | | | | | | |
Collapse
|
26
|
Yan C, Hui Z, Wang Q, Xiao S, Pu Y, Wang Q, Wang T, You J, Ren X. OA09.03 Single Cell Analyses Reveal Effects of Immunosenescence Cells in Neoadjuvant Immunotherapy of Lung Squamous cell Carcinoma Patients. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.048] [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: 10/14/2022]
|
27
|
Wan X, Holyoak M, Yan C, Le Maho Y, Dirzo R, Krebs CJ, Stenseth NC, Zhang Z. Broad-scale climate variation drives the dynamics of animal populations: a global multi-taxa analysis. Biol Rev Camb Philos Soc 2022; 97:2174-2194. [PMID: 35942895 DOI: 10.1111/brv.12888] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 01/07/2023]
Abstract
Climate is a major extrinsic factor affecting the population dynamics of many organisms. The Broad-Scale Climate Hypothesis (BSCH) was proposed by Elton to explain the large-scale synchronous population cycles of animals, but the extent of support and whether it differs among taxa and geographical regions is unclear. We reviewed publications examining the relationship between the population dynamics of multiple taxa worldwide and the two most commonly used broad-scale climate indices, El Niño-Southern Oscillation (ENSO) and North Atlantic Oscillation (NAO). Our review and synthesis (based on 561 species from 221 papers) reveals that population changes of mammals, birds and insects are strongly affected by major oceanic shifts or irregular oceanic changes, particularly in ENSO- and NAO-influenced regions (Pacific and Atlantic, respectively), providing clear evidence supporting Elton's BSCH. Mammal and insect populations tended to increase during positive ENSO phases. Bird populations tended to increase in positive NAO phases. Some species showed dual associations with both positive and negative phases of the same climate index (ENSO or NAO). These findings indicate that some taxa or regions are more or less vulnerable to climate fluctuations and that some geographical areas show multiple weather effects related to ENSO or NAO phases. Beyond confirming that animal populations are influenced by broad-scale climate variation, we document extensive patterns of variation among taxa and observe that the direct biotic and abiotic mechanisms for these broad-scale climate factors affecting animal populations are very poorly understood. A practical implication of our research is that changes in ENSO or NAO can be used as early signals for pest management and wildlife conservation. We advocate integrative studies at both broad and local scales to unravel the omnipresent effects of climate on animal populations to help address the challenge of conserving biodiversity in this era of accelerated climate change.
Collapse
Affiliation(s)
- Xinru Wan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Marcel Holyoak
- Department of Environmental Science and Policy, University of California, California, Davis, 95616, USA
| | - Chuan Yan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yvon Le Maho
- Institut Pluridisciplinaire Hubert Curien (IPHC), Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg, Strasbourg, 67000, France.,Centre Scientifique de Monaco, Monaco, 98000, Monaco
| | - Rodolfo Dirzo
- Department of Biology and Woods Institute for the Environment, Stanford University, Stanford, California, 94305, USA
| | - Charles J Krebs
- Department of Zoology, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Nils Chr Stenseth
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, N-0316, Norway
| | - Zhibin Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
28
|
Yan C, Zhao L, Geng S, Guo K. LB1000 Potential role of cold atmospheric plasma in improving drug resistance of BRAFi/MEKi and immune checkpoint blockade agents in melanoma cells. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.1026] [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: 10/17/2022]
|
29
|
Yan C, Yang Q, Gong Z. Corrigendum to “Activation of hepatic stellate cells during liver carcinogenesis requires fibrinogen/ integrin αvβ5 in zebrafish” Neoplasia 20(5):533–542. Neoplasia 2022; 33:100831. [PMID: 36175045 PMCID: PMC9522610 DOI: 10.1016/j.neo.2022.100831] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chuan Yan
- Department of Biological Sciences, National University of Singapore, Singapore; National University of Singapore Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore
| | - Qiqi Yang
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, Singapore; National University of Singapore Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore.
| |
Collapse
|
30
|
Wei Y, Qin Q, Yan C, Hayes MN, Garcia SP, Xi H, Do D, Jin AH, Eng TC, McCarthy KM, Adhikari A, Onozato ML, Spentzos D, Neilsen GP, Iafrate AJ, Wexler LH, Pyle AD, Suvà ML, Dela Cruz F, Pinello L, Langenau DM. Single-cell analysis and functional characterization uncover the stem cell hierarchies and developmental origins of rhabdomyosarcoma. Nat Cancer 2022; 3:961-975. [PMID: 35982179 PMCID: PMC10430812 DOI: 10.1038/s43018-022-00414-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 06/24/2022] [Indexed: 04/29/2023]
Abstract
Rhabdomyosarcoma (RMS) is a common childhood cancer that shares features with developing skeletal muscle. Yet, the conservation of cellular hierarchy with human muscle development and the identification of molecularly defined tumor-propagating cells has not been reported. Using single-cell RNA-sequencing, DNA-barcode cell fate mapping and functional stem cell assays, we uncovered shared tumor cell hierarchies in RMS and human muscle development. We also identified common developmental stages at which tumor cells become arrested. Fusion-negative RMS cells resemble early myogenic cells found in embryonic and fetal development, while fusion-positive RMS cells express a highly specific gene program found in muscle cells transiting from embryonic to fetal development at 7-7.75 weeks of age. Fusion-positive RMS cells also have neural pathway-enriched states, suggesting less-rigid adherence to muscle-lineage hierarchies. Finally, we identified a molecularly defined tumor-propagating subpopulation in fusion-negative RMS that shares remarkable similarity to bi-potent, muscle mesenchyme progenitors that can make both muscle and osteogenic cells.
Collapse
Affiliation(s)
- Yun Wei
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Qian Qin
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Chuan Yan
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Madeline N Hayes
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Sara P Garcia
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
| | - Haibin Xi
- Department of Microbiology, Immunology, and Molecular Genetics, University of California Los Angeles, Los Angeles, CA, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California Los Angeles, Los Angeles, CA, USA
| | - Daniel Do
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Alexander H Jin
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Tiffany C Eng
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Karin M McCarthy
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Abhinav Adhikari
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Maristela L Onozato
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
| | - Dimitrios Spentzos
- Center for Sarcoma and Connective Tissue Oncology, Department of Orthopedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Gunnlaugur P Neilsen
- Center for Sarcoma and Connective Tissue Oncology, Department of Orthopedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - A John Iafrate
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
| | - Leonard H Wexler
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - April D Pyle
- Department of Microbiology, Immunology, and Molecular Genetics, University of California Los Angeles, Los Angeles, CA, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California Los Angeles, Los Angeles, CA, USA
| | - Mario L Suvà
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Filemon Dela Cruz
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Luca Pinello
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA.
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA.
| | - David M Langenau
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA, USA.
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA.
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA.
- Harvard Stem Cell Institute, Cambridge, MA, USA.
| |
Collapse
|
31
|
Zhao L, Yan C, Zhang X, Jia T, Geng S, Guo K. LB1001 Effectiveness and differentially expressed genes analysis of melanoma cells treated with cold atmospheric plasma. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.1027] [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: 10/17/2022]
|
32
|
Li YM, Zhu YM, Gao LM, Han ZW, Chen XJ, Yan C, Ye RP, Cao DR. Radiomic analysis based on multi-phase magnetic resonance imaging to predict preoperatively microvascular invasion in hepatocellular carcinoma. World J Gastroenterol 2022; 28:2733-2747. [PMID: 35979164 PMCID: PMC9260872 DOI: 10.3748/wjg.v28.i24.2733] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/20/2022] [Accepted: 05/12/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The prognosis of hepatocellular carcinoma (HCC) remains poor and relapse occurs in more than half of patients within 2 years after hepatectomy. In terms of recent studies, microvascular invasion (MVI) is one of the potential predictors of recurrence. Accurate preoperative prediction of MVI is potentially beneficial to the optimization of treatment planning.
AIM To develop a radiomic analysis model based on pre-operative magnetic resonance imaging (MRI) data to predict MVI in HCC.
METHODS A total of 113 patients recruited to this study have been diagnosed as having HCC with histological confirmation, among whom 73 were found to have MVI and 40 were not. All the patients received preoperative examination by Gd-enhanced MRI and then curative hepatectomy. We manually delineated the tumor lesion on the largest cross-sectional area of the tumor and the adjacent two images on MRI, namely, the regions of interest. Quantitative analyses included most discriminant factors (MDFs) developed using linear discriminant analysis algorithm and histogram analysis with MaZda software. Independent significant variables of clinical and radiological features and MDFs for the prediction of MVI were estimated and a discriminant model was established by univariate and multivariate logistic regression analysis. Prediction ability of the above-mentioned parameters or model was then evaluated by receiver operating characteristic (ROC) curve analysis. Five-fold cross-validation was also applied via R software.
RESULTS The area under the ROC curve (AUC) of the MDF (0.77-0.85) outperformed that of histogram parameters (0.51-0.74). After multivariate analysis, MDF values of the arterial and portal venous phase, and peritumoral hypointensity in the hepatobiliary phase were identified to be independent predictors of MVI (P < 0.05). The AUC value of the model was 0.939 [95% confidence interval (CI): 0.893-0.984, standard error: 0.023]. The result of internal five-fold cross-validation (AUC: 0.912, 95%CI: 0.841-0.959, standard error: 0.0298) also showed favorable predictive efficacy.
CONCLUSION Noninvasive MRI radiomic model based on MDF values and imaging biomarkers may be useful to make preoperative prediction of MVI in patients with primary HCC.
Collapse
Affiliation(s)
- Yue-Ming Li
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
- Key Laboratory of Radiation Biology (Fujian Medical University), Fujian Province University, Fuzhou 350005, Fujian Province, China
| | - Yue-Min Zhu
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
| | - Lan-Mei Gao
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
| | - Ze-Wen Han
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
| | - Xiao-Jie Chen
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
| | - Chuan Yan
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
| | - Rong-Ping Ye
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
| | - Dai-Rong Cao
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
| |
Collapse
|
33
|
Gao L, Xiong M, Chen X, Han Z, Yan C, Ye R, Zhou L, Li Y. Multi-Region Radiomic Analysis Based on Multi-Sequence MRI Can Preoperatively Predict Microvascular Invasion in Hepatocellular Carcinoma. Front Oncol 2022; 12:818681. [PMID: 35574328 PMCID: PMC9094629 DOI: 10.3389/fonc.2022.818681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 03/21/2022] [Indexed: 01/27/2023] Open
Abstract
Objectives Microvascular invasion (MVI) affects the postoperative prognosis in hepatocellular carcinoma (HCC) patients; however, there remains a lack of reliable and effective tools for preoperative prediction of MVI. Radiomics has shown great potential in providing valuable information for tumor pathophysiology. We constructed and validated radiomics models with and without clinico-radiological factors to predict MVI. Methods One hundred and fifteen patients with pathologically confirmed HCC (training set: n = 80; validation set: n = 35) who underwent preoperative MRI were retrospectively recruited. Radiomics models based on multi-sequence MRI across various regions (including intratumoral and/or peritumoral areas) were built using four classification algorithms. A clinico-radiological model was constructed individually and combined with a radiomics model to generate a fusion model by multivariable logistic regression. Results Among the radiomics models, the model based on T2WI and arterial phase (T2WI-AP model) in the volume of the liver-HCC interface (VOIinterface) exhibited the best predictive power, with AUCs of 0.866 in the training group and 0.855 in the validation group. The clinico-radiological model exhibited good efficacy (AUC: 0.819 and 0.717, respectively). The fusion model showed excellent predictive ability (AUC: 0.915 and 0.868, respectively), outperforming both the clinico-radiological and the T2WI-AP models in the training and validation sets. Conclusion The fusion model of multi-region radiomics achieves an enhanced prediction of the individualized risk estimation of MVI in HCC patients. This may be a beneficial tool for clinicians to improve decision-making in personalized medicine.
Collapse
Affiliation(s)
- Lanmei Gao
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Meilian Xiong
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xiaojie Chen
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Zewen Han
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China.,The School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian, China
| | - Chuan Yan
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Rongping Ye
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Lili Zhou
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yueming Li
- Department of Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China.,Key Laboratory of Radiation Biology (Fujian Medical University), Fujian Province University, Fuzhou, Fujian, China
| |
Collapse
|
34
|
Solman M, Blokzijl-Franke S, Piques F, Yan C, Yang Q, Strullu M, Kamel SM, Ak P, Bakkers J, Langenau DM, Cavé H, den Hertog J. Inflammatory response in hematopoietic stem and progenitor cells triggered by activating SHP2 mutations evokes blood defects. eLife 2022; 11:e73040. [PMID: 35535491 PMCID: PMC9119675 DOI: 10.7554/elife.73040] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 04/20/2022] [Indexed: 11/20/2022] Open
Abstract
Gain-of-function mutations in the protein-tyrosine phosphatase SHP2 are the most frequently occurring mutations in sporadic juvenile myelomonocytic leukemia (JMML) and JMML-like myeloproliferative neoplasm (MPN) associated with Noonan syndrome (NS). Hematopoietic stem and progenitor cells (HSPCs) are the disease propagating cells of JMML. Here, we explored transcriptomes of HSPCs with SHP2 mutations derived from JMML patients and a novel NS zebrafish model. In addition to major NS traits, CRISPR/Cas9 knock-in Shp2D61G mutant zebrafish recapitulated a JMML-like MPN phenotype, including myeloid lineage hyperproliferation, ex vivo growth of myeloid colonies, and in vivo transplantability of HSPCs. Single-cell mRNA sequencing of HSPCs from Shp2D61G zebrafish embryos and bulk sequencing of HSPCs from JMML patients revealed an overlapping inflammatory gene expression pattern. Strikingly, an anti-inflammatory agent rescued JMML-like MPN in Shp2D61G zebrafish embryos. Our results indicate that a common inflammatory response was triggered in the HSPCs from sporadic JMML patients and syndromic NS zebrafish, which potentiated MPN and may represent a future target for JMML therapies.
Collapse
Affiliation(s)
- Maja Solman
- Hubrecht Institute-KNAW and UMC UtrechtUtrechtNetherlands
| | | | - Florian Piques
- INSERM UMR_S1131, Institut de Recherche Saint-Louis, Université de ParisParisFrance
- Assistance Publique des Hôpitaux de Paris AP-HP, Hôpital Robert Debré, Département de GénétiqueParisFrance
| | - Chuan Yan
- Molecular Pathology Unit, Massachusetts General Hospital Research InstituteCharlestownUnited States
- Massachusetts General Hospital Cancer CenterCharlestownUnited States
- Center for Regenerative Medicine, Massachusetts General HospitalBostonUnited States
- Harvard Stem Cell InstituteCambridgeUnited States
| | - Qiqi Yang
- Molecular Pathology Unit, Massachusetts General Hospital Research InstituteCharlestownUnited States
- Massachusetts General Hospital Cancer CenterCharlestownUnited States
- Center for Regenerative Medicine, Massachusetts General HospitalBostonUnited States
- Harvard Stem Cell InstituteCambridgeUnited States
| | - Marion Strullu
- INSERM UMR_S1131, Institut de Recherche Saint-Louis, Université de ParisParisFrance
- Assistance Publique des Hôpitaux de Paris AP-HP, Hôpital Robert Debré, Service d’Onco-Hématologie PédiatriqueParisFrance
| | - Sarah M Kamel
- Hubrecht Institute-KNAW and UMC UtrechtUtrechtNetherlands
| | - Pakize Ak
- Hubrecht Institute-KNAW and UMC UtrechtUtrechtNetherlands
| | - Jeroen Bakkers
- Hubrecht Institute-KNAW and UMC UtrechtUtrechtNetherlands
- Department of Medical Physiology, Division of Heart and Lungs, UMC UtrechtUtrechtNetherlands
| | - David M Langenau
- Molecular Pathology Unit, Massachusetts General Hospital Research InstituteCharlestownUnited States
- Massachusetts General Hospital Cancer CenterCharlestownUnited States
- Center for Regenerative Medicine, Massachusetts General HospitalBostonUnited States
- Harvard Stem Cell InstituteCambridgeUnited States
| | - Hélène Cavé
- INSERM UMR_S1131, Institut de Recherche Saint-Louis, Université de ParisParisFrance
- Assistance Publique des Hôpitaux de Paris AP-HP, Hôpital Robert Debré, Département de GénétiqueParisFrance
| | - Jeroen den Hertog
- Hubrecht Institute-KNAW and UMC UtrechtUtrechtNetherlands
- Institute of Biology Leiden, Leiden UniversityLeidenNetherlands
| |
Collapse
|
35
|
Zhang Y, Yu F, Yi X, Zhou W, Liu R, Holyoak M, Cao L, Zhang M, Chen J, Zhang Z, Yan C. Evolutionary and ecological patterns of scatter- and larder-hoarding behaviours in rodents. Ecol Lett 2022; 25:1202-1214. [PMID: 35230727 DOI: 10.1111/ele.13992] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/28/2022] [Accepted: 02/10/2022] [Indexed: 11/26/2022]
Abstract
Scatter- and larder hoarding are the primary strategies of food-hoarding animals and have important implications for plant-animal interactions and plant recruitment. However, their origins and influencing factors have not been fully investigated across a wide range of taxa. Our systematic literature search amassed data for 183 seed-hoarding rodent species worldwide and tested relationships of seed-hoarding behaviours with phylogenetic signal, functional traits and environmental factors. We found that the evolution of hoarding strategies was not random in phylogeny, and scatter hoarding originated independently multiple times from larder hoarding. Rodents with higher encephalisation quotient (relative brain size), omnivorous diet (related to dependence on seeds) and inhabiting lower latitudes were disproportionately likely to scatter hoard. Despite body mass's potential relationship with competition through food defence, it was associated with food-hoarding strategy only in a few families. Our results show the need to study the community and ecological context of food-hoarding behaviours.
Collapse
Affiliation(s)
- Yongjun Zhang
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology & School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Fei Yu
- College of Life Sciences, Henan Normal University, Xinxiang, China
| | - Xianfeng Yi
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Weiwei Zhou
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology & School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Rui Liu
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology & School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Marcel Holyoak
- Department of Environmental Science and Policy, University of California, Davis, California, USA
| | - Lin Cao
- School of Ecology and Environmental Science, Yunnan University, Kunming, China
| | - Mingming Zhang
- College of Agriculture, Henan University of Science and Technology, Luoyang, China
| | - Jiani Chen
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology & School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Zhibin Zhang
- State Key Laboratory of Integrated Pest Management, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Chuan Yan
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology & School of Life Sciences, Lanzhou University, Lanzhou, China
| |
Collapse
|
36
|
Hakala S, Vakkari V, Bianchi F, Dada L, Deng C, Dällenbach KR, Fu Y, Jiang J, Kangasluoma J, Kujansuu J, Liu Y, Petäjä T, Wang L, Yan C, Kulmala M, Paasonen P. Observed coupling between air mass history, secondary growth of nucleation mode particles and aerosol pollution levels in Beijing. Environ Sci Atmos 2022; 2:146-164. [PMID: 35419523 PMCID: PMC8929417 DOI: 10.1039/d1ea00089f] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Atmospheric aerosols have significant effects on the climate and on human health. New particle formation (NPF) is globally an important source of aerosols but its relevance especially towards aerosol mass loadings in highly polluted regions is still controversial. In addition, uncertainties remain regarding the processes leading to severe pollution episodes, concerning e.g. the role of atmospheric transport. In this study, we utilize air mass history analysis in combination with different fields related to the intensity of anthropogenic emissions in order to calculate air mass exposure to anthropogenic emissions (AME) prior to their arrival at Beijing, China. The AME is used as a semi-quantitative metric for describing the effect of air mass history on the potential for aerosol formation. We show that NPF events occur in clean air masses, described by low AME. However, increasing AME seems to be required for substantial growth of nucleation mode (diameter < 30 nm) particles, originating either from NPF or direct emissions, into larger mass-relevant sizes. This finding assists in establishing and understanding the connection between small nucleation mode particles, secondary aerosol formation and the development of pollution episodes. We further use the AME, in combination with basic meteorological variables, for developing a simple and easy-to-apply regression model to predict aerosol volume and mass concentrations. Since the model directly only accounts for changes in meteorological conditions, it can also be used to estimate the influence of emission changes on pollution levels. We apply the developed model to briefly investigate the effects of the COVID-19 lockdown on PM2.5 concentrations in Beijing. While no clear influence directly attributable to the lockdown measures is found, the results are in line with other studies utilizing more widely applied approaches.
Collapse
Affiliation(s)
- S Hakala
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - V Vakkari
- Finnish Meteorological Institute Erik Palmenin Aukio 1 Helsinki Finland
- Atmospheric Chemistry Research Group, Chemical Resource Beneficiation, North-West University Potchefstroom South Africa
| | - F Bianchi
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - L Dada
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
- Extreme Environments Research Laboratory, Ecole Polytechnique Fédérale de Lausanne (EPFL) Valais Sion 1951 Switzerland
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - C Deng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University Beijing China
| | - K R Dällenbach
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Y Fu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University Beijing China
| | - J Jiang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University Beijing China
| | - J Kangasluoma
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - J Kujansuu
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - Y Liu
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
| | - T Petäjä
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
- Joint International Research Laboratory of Atmospheric and Earth System Sciences, Nanjing University Nanjing China
| | - L Wang
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences Beijing 100029 China
| | - C Yan
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - M Kulmala
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
- Joint International Research Laboratory of Atmospheric and Earth System Sciences, Nanjing University Nanjing China
| | - P Paasonen
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| |
Collapse
|
37
|
Yan C. Nestedness interacts with subnetwork structures and interconnection patterns to affect community dynamics in ecological multilayer networks. J Anim Ecol 2022; 91:738-751. [DOI: 10.1111/1365-2656.13665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 01/03/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Chuan Yan
- State Key Laboratory of Grassland Agro‐ecosystems Institute of Innovation Ecology & College of Life Sciences Lanzhou University Lanzhou 730000 China
- Yuzhong Mountain Ecosystems Observation and Research Station Lanzhou University Lanzhou 730000 China
| |
Collapse
|
38
|
Li C, Yan C, Sun Q, Wang J, Yuan C, Mou Y, Shan S, Zhao X. Proteomic profiling of Arachis hypogaea in response to drought stress and overexpression of AhLEA2 improves drought tolerance. Plant Biol (Stuttg) 2022; 24:75-84. [PMID: 34694687 DOI: 10.1111/plb.13351] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Drought is the main factor restricting peanut growth, but the molecular mechanism underlying peanut drought tolerance remains unclear. Herein, the seedling stage of drought-resistant peanut cultivar J11 was subjected to drought stress, and its proteomic profile was systematically analysed by isobaric tags for relative and absolute quantification (iTRAQ), the results of which were further complemented with our previous transcriptome results. A total of 4,018 proteins were identified by proteomic analysis, which revealed that the expression levels of 69 proteins were altered under drought stress. Among the differentially expressed proteins (DEPs), 50 were upregulated, and 19 were downregulated. The most enriched metabolic pathways for these DEPs were those involving phenylpropanoid biosynthesis, flavonoid biosynthesis, and plant hormone signal transduction. The proteomic data and previous transcriptome results revealed 44 groups of genes/proteins with the same expression trend, including a LEA (Late embryogenesis abundant) gene, AhLEA2. Our present study showed that overexpression of the AhLEA2 gene enhanced the drought resistance of transgenic Arabidopsis plants, and the activities of related antioxidant enzymes in the transgenic plants significantly changed. The AhLEA2 gene was found to be located in the cytoplasm and cell membrane by subcellular localization experiments. This work systematically analysed the differentially expressed proteins in peanut in response to drought stress, providing important candidates for further functional analysis of the stress response of peanut. Our results also indicated that AhLEA2 plays an important role in the peanut response to drought stress.
Collapse
Affiliation(s)
- C Li
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - C Yan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - Q Sun
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - J Wang
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - C Yuan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - Y Mou
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - S Shan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - X Zhao
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| |
Collapse
|
39
|
Zhang S, Yan C, Millar DG, Yang Q, Heather JM, Langenbucher A, Morton LT, Sepulveda S, Alpert E, Whelton LR, Zarrella DT, Guo M, Minogue E, Lawrence MS, Rueda BR, Spriggs DR, Lu W, Langenau DM, Cobbold M. Antibody-peptide epitope conjugates for personalized cancer therapy. Cancer Res 2021; 82:773-784. [DOI: 10.1158/0008-5472.can-21-2200] [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] [Received: 07/09/2021] [Revised: 11/11/2021] [Accepted: 12/27/2021] [Indexed: 11/16/2022]
|
40
|
Yan C, Yang L, Mo X, Chen K, Niu W, Zhao Z, Li G. Dual Thermo- and Photo-Responsive Micelles Based on Azobenzene-Containing Random Copolymer. Materials (Basel) 2021; 15:2. [PMID: 35009149 PMCID: PMC8746059 DOI: 10.3390/ma15010002] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 01/14/2023]
Abstract
Amphiphilic random copolymer poly(methacrylamido-azobenzene)-ran-poly(2-hydroxyethylacrylate) (PMAAAB-ran-PHEA) was synthesized via hydrolysis of poly(methacrylamido-azobenzene)-ran-poly[2-((2'-tetrahydropyranyl)oxy)ethylacrylate] (PMAAAB-ran-P(THP-HEA)), which was prepared by conventional radical polymerization. PMAAAB-ran-PHEA micelles were then prepared via dialysis method against water with DMF as solvent. The structure, morphology, size, and low critical solution temperature (LCST) of PMAAAB-ran-PHEA and its micelles were determined by 1H-NMR, GPC, TEM, and DLS. The thermo- and photo-responsive behaviors of the resulting polymer micelles were investigated with Nile red as a fluorescence probe. The results showed that PMAAAB-ran-PHEA micelles were porous or bowl-shaped and its size was 135-150 nm, and its LCST was 55 °C when FMAAAB of the random copolymer was 0.5351; the hydrophobicity of the micellar core was changed reversibly under the irradiation of UV light and visible light without release of Nile red or disruption of micelles; the size and solubilization capacity of the micelles were dependent on temperature, and Nile red would migrate for many times between the water phase and the micelles, and finally increasingly accumulated during the repeated heating and cooling processes.
Collapse
Affiliation(s)
- Chuan Yan
- Guangxi Key Laboratory of Petrochemical Resource Processing & Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (C.Y.); (X.M.); (K.C.)
| | - Liqin Yang
- Hebei Functional Polymer Materials R&D and Engineering Application Technology Innovation Center, College of Chemistry & Chemical Engineering, Xingtai University, Xingtai 050041, China; (L.Y.); (W.N.)
| | - Xiangquan Mo
- Guangxi Key Laboratory of Petrochemical Resource Processing & Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (C.Y.); (X.M.); (K.C.)
| | - Keying Chen
- Guangxi Key Laboratory of Petrochemical Resource Processing & Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (C.Y.); (X.M.); (K.C.)
| | - Weiya Niu
- Hebei Functional Polymer Materials R&D and Engineering Application Technology Innovation Center, College of Chemistry & Chemical Engineering, Xingtai University, Xingtai 050041, China; (L.Y.); (W.N.)
| | - Zhiju Zhao
- Hebei Functional Polymer Materials R&D and Engineering Application Technology Innovation Center, College of Chemistry & Chemical Engineering, Xingtai University, Xingtai 050041, China; (L.Y.); (W.N.)
| | - Guanghua Li
- Guangxi Key Laboratory of Petrochemical Resource Processing & Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (C.Y.); (X.M.); (K.C.)
| |
Collapse
|
41
|
Yan C, An D, Chen W, Zhang N, Qiao Y, Fang J, Lu X, Zhou G, Liu Y. Stable Diarylamine-Substituted Tris(2,4,6-trichlorophenyl)methyl Radicals: One-Step Synthesis, Near-Infrared Emission, and Redox Chemistry. CCS Chem 2021. [DOI: 10.31635/ccschem.021.202101513] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Chuan Yan
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438
| | - Dongyue An
- Department of Materials Science, Fudan University, Shanghai 200438
| | - Weinan Chen
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438
| | - Ning Zhang
- Department of Materials Science, Fudan University, Shanghai 200438
| | - Yanjun Qiao
- Department of Materials Science, Fudan University, Shanghai 200438
| | - Jing Fang
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438
| | - Xuefeng Lu
- Department of Materials Science, Fudan University, Shanghai 200438
| | - Gang Zhou
- Lab of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438
| | - Yunqi Liu
- Department of Materials Science, Fudan University, Shanghai 200438
| |
Collapse
|
42
|
Wang M, Yan C, Luo A, Li Y, Chesters D, Qiao H, Chen J, Zhou Q, Ma K, Bruelheide H, Schuldt A, Zhang Z, Zhu C. Phylogenetic relatedness, functional traits, and spatial scale determine herbivore co‐occurrence in a subtropical forest. ECOL MONOGR 2021. [DOI: 10.1002/ecm.1492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ming‐Qiang Wang
- Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
- College of Biological Sciences University of Chinese Academy of Sciences No. 19A Yuquan Road Shijingshan District, Beijing 100049 China
| | - Chuan Yan
- Institute of Innovation Ecology Lanzhou University Lanzhou Gansu 730013 China
| | - Arong Luo
- Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
| | - Yi Li
- Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
- College of Biological Sciences University of Chinese Academy of Sciences No. 19A Yuquan Road Shijingshan District, Beijing 100049 China
| | - Douglas Chesters
- Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
| | - Hui‐Jie Qiao
- Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
| | - Jing‐Ting Chen
- Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
- College of Biological Sciences University of Chinese Academy of Sciences No. 19A Yuquan Road Shijingshan District, Beijing 100049 China
| | - Qing‐Song Zhou
- Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
| | - Keping Ma
- Institute of Botany Chinese Academy of Sciences Beijing 100093 China
| | - Helge Bruelheide
- Institute of Biology/Geobotany and Botanical Garden Martin Luther University Halle‐Wittenberg Am Kirchtor 1 Halle 06108 Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Puschstr. 4 Leipzig 04103 Germany
| | - Andreas Schuldt
- Forest Nature Conservation Georg‐August‐University Goettingen Buesgenweg 3 Goettingen 37077 Germany
| | - Zhibin Zhang
- College of Biological Sciences University of Chinese Academy of Sciences No. 19A Yuquan Road Shijingshan District, Beijing 100049 China
- State Key Laboratory of Integrated Pest Management Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
- CAS Center for Excellence in Biotic Interactions University of Chinese Academy of Sciences Beijing 100049 China
| | - Chao‐Dong Zhu
- Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
- College of Biological Sciences University of Chinese Academy of Sciences No. 19A Yuquan Road Shijingshan District, Beijing 100049 China
- State Key Laboratory of Integrated Pest Management Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
| |
Collapse
|
43
|
Yan C, Gajdos S, Ramalingam A, Fromm M, Suh J, Xia P. Comparing Collapsed Cone Convolution Algorithm With Acuros and Its Implication on NRG Clinical Trials. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.597] [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: 10/20/2022]
|
44
|
Cao L, Jansen PA, Wang B, Yan C, Wang Z, Chen J. Mutual cheating strengthens a tropical seed dispersal mutualism. Ecology 2021; 103:e03574. [PMID: 34706058 DOI: 10.1002/ecy.3574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 04/16/2021] [Accepted: 07/07/2021] [Indexed: 11/07/2022]
Abstract
While cheating can cause the degradation or collapse of mutualisms, mutualisms may theoretically stabilize or strengthen if the cheating is mutual. Here, we present an asymmetric two-player game model to explore the evolutionary dynamics of mutual cheating in a mutualistic interaction. We found that the interaction evolved towards mutual cheating if cheating can help both partners obtain higher benefits or if counter-cheating yields more benefits to victims than simply tolerating exploitation by partners. Then, we present empirical evidence for such mutual cheating strengthening a seed dispersal mutualism in which rodents disperse seeds by scatter hoarding, rodents sabotage seed germination by pruning radicles, and seeds escape rodents by resprouting. By tracking >8000 Pittosporopsis kerrii seeds throughout the dispersal process in a tropical forest in southwest China, we found that rodents provided better dispersal to seeds that they pruned, i.e., pruned seeds were dispersed farther and were more likely to establish seedlings than unpruned seeds. Compared to unpruned seeds, pruned seeds retained more of their nutrients, i.e., dry mass of pruned seeds was greater than that of unpruned seeds, and were stored for longer by rodents. These findings indicate that mutual cheating benefited both partners. Payoffs estimated from the field experiments indicated that mutual cheating was indeed favored in rodents and plants P. kerrii, and that neither partner was enslaved by the other under mutual cheating. Rather, the mutualism remained stable because the partners were able to exploit each other, and each partner attempted to gain the maximum benefits from the interaction. Our findings indicate that mutual cheating between two mutualists can enhance and stabilize mutualisms.
Collapse
Affiliation(s)
- Lin Cao
- School of Ecology and Environmental Science, Yunnan University, Kunming, 650091, China.,Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China.,State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, 100101, China
| | - Patrick A Jansen
- Department of Environmental Sciences, Wageningen University, PO Box 47, 6700 AA, Wageningen, The Netherlands.,Smithsonian Tropical Research Institute, Apartado, 0843-03092, Republic of Panama
| | - Bo Wang
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China.,School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
| | - Chuan Yan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.,State Key Laboratory of Grassland Agro-ecosystem, Institute of Innovation Ecology & College of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Zhenyu Wang
- College of Life Sciences, Jiangxi Normal University, Nanchang, 330022, China
| | - Jin Chen
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China
| |
Collapse
|
45
|
Qian Z, Yan C, Sijiu Y, Junfeng H, Yangyang P, Zhanchun B. Immunity cells in the small intestinal mucosa of newborn yaks. Folia Morphol (Warsz) 2021; 81:91-100. [PMID: 34642930 DOI: 10.5603/fm.a2021.0102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND This study aimed to characterize and evaluate the main markers of T lymphocytes, B lymphocytes, immunoglobulin (Ig) A and IgG plasmocytes, macrophages, and dendritic cells of the intestinal mucosa of newborn yaks. MATERIALS AND METHODS Ten newborn yaks (2-4 weeks old) were choosed. Immunohistochemistry and real-time quantitative polymerase chain reaction were used to analyze the immune cell distribution and specific markers at the mRNA expression level in the duodenum, jejunum, and ileum. RESULTS The results showed in the epithelium, CD3-positive T lymphocyte levels were higher than other immune cell levels (P<0.05). Additionally, in the lamina propria, the number of cells positive for CD3, CD68, and signal inhibitory regulatory protein alpha (SIRPα) were higher in the villi, while CD79α, IgA, and IgG cells were more common at the base of the crypt. Moreover, both in the epithelium and lamina propria, the number of CD3, CD68 and SIRPα were decreased from the duodenum to the ileum (P<0.05), additionally the number of CD79α, IgA and IgG positive cells were increased from the duodenum to the ileum of newborn yaks (P<0.05). Furthermore, the mRNA expression levels of CD3ε, CD68, and SIRPα increased from the duodenum to the ileum (P<0.05), while the mRNA expression levels of CD79α, IgA, and IgG decreased from the duodenum to the ileum. CONCLUSIONS Immunohistochemical characterization and expression levels of immune factors in the small intestinal mucosa of newborn yaks suggest that the intestinal mucosa is an important part of the natural barrier and provides useful references for immunity functions of newborn yak intestinal mucosa.
Collapse
Affiliation(s)
- Z Qian
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China.
| | - C Yan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Y Sijiu
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - H Junfeng
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - P Yangyang
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - B Zhanchun
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| |
Collapse
|
46
|
Yan C, Yang Q, Zhang S, Millar DG, Alpert EJ, Do D, Veloso A, Brunson DC, Drapkin BJ, Stanzione M, Scarfò I, Moore JC, Iyer S, Qin Q, Wei Y, McCarthy KM, Rawls JF, Dyson NJ, Cobbold M, Maus MV, Langenau DM. Single-cell imaging of T cell immunotherapy responses in vivo. J Exp Med 2021; 218:e20210314. [PMID: 34415995 PMCID: PMC8383813 DOI: 10.1084/jem.20210314] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/19/2021] [Accepted: 07/09/2021] [Indexed: 12/22/2022] Open
Abstract
T cell immunotherapies have revolutionized treatment for a subset of cancers. Yet, a major hurdle has been the lack of facile and predicative preclinical animal models that permit dynamic visualization of T cell immune responses at single-cell resolution in vivo. Here, optically clear immunocompromised zebrafish were engrafted with fluorescent-labeled human cancers along with chimeric antigen receptor T (CAR T) cells, bispecific T cell engagers (BiTEs), and antibody peptide epitope conjugates (APECs), allowing real-time single-cell visualization of T cell-based immunotherapies in vivo. This work uncovered important differences in the kinetics of T cell infiltration, tumor cell engagement, and killing between these immunotherapies and established early endpoint analysis to predict therapy responses. We also established EGFR-targeted immunotherapies as a powerful approach to kill rhabdomyosarcoma muscle cancers, providing strong preclinical rationale for assessing a wider array of T cell immunotherapies in this disease.
Collapse
Affiliation(s)
- Chuan Yan
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Qiqi Yang
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Songfa Zhang
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
| | - David G. Millar
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
| | - Eric J. Alpert
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Daniel Do
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Alexandra Veloso
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Dalton C. Brunson
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Benjamin J. Drapkin
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
| | - Marcello Stanzione
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
| | - Irene Scarfò
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
| | - John C. Moore
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Sowmya Iyer
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Qian Qin
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Yun Wei
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - Karin M. McCarthy
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| | - John F. Rawls
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC
| | - Nick J. Dyson
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
| | - Mark Cobbold
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Early Oncology R&D, AstraZeneca, Gaithersburg, MD
| | - Marcela V. Maus
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
| | - David M. Langenau
- Molecular Pathology Unit, Massachusetts General Research Institute, Charlestown, MA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
| |
Collapse
|
47
|
Zhao M, Yang F, Sang C, Yan C, Wang Z. BGL3 inhibits papillary thyroid carcinoma progression via regulating PTEN stability. J Endocrinol Invest 2021; 44:2165-2174. [PMID: 33543443 DOI: 10.1007/s40618-021-01519-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 01/23/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE BGL3, a novel long non-coding RNA (lncRNA) that plays a crucial role in several human malignancies. However, the clinical significance and biological function of BGL3 in papillary thyroid carcinoma (PTC) have not been explored. Herein, we aimed to investigate the role of BGL3 in human PTC. METHODS A total of 85 pairs of PTC and normal tissues were collected for clinicopathological analysis. Expression of BGL3 was determined by quantitative real-time polymerase chain reaction (qRT-PCR). The effects of BGL3 on PTC cells ware determined by CCK-8, colony formation, EdU and wound healing assays. The molecular mechanism underlying BGL3 was tested by ChIP, Co-IP, RNA pull-down and luciferase reporter assays. In vivo experiments were conducted using xenografts in nude mice. RESULTS BGL3 was significantly decreased in PTC tissues compared to adjacent normal thyroid tissues, and it was transcriptionally repressed by oncogene Myc. Low BGL3 is positively related to larger tumor size, lymph node metastasis, later TNM stage and poor prognosis. Overexpression of BGL3 inhibited PTC cell proliferation and migration in vitro, and reduced tumor size and lung metastasis nodules in vivo. BGL3 was mainly located in the cytoplasm, in which interacted with PTEN and recruited OTUD3, enhancing the de-ubiquitination effect of OTUD3 on PTEN, resulting in increasing PTEN protein stability and inactivating carcinogenic PI3K/AKT signaling. CONCLUSIONS Our data underscore the critical tumor-inhibiting role of BGL3 in PTC via post-translational regulation of PTEN protein stability, which may serve as a novel therapeutic target and prognostic biomarker in human PTC.
Collapse
Affiliation(s)
- M Zhao
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - F Yang
- Department of Orthopedics, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - C Sang
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - C Yan
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - Z Wang
- Department of General Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China.
| |
Collapse
|
48
|
Yan C, Wang M, Sun F, Cao L, Jia B, Xia Y. Macrophage M1/M2 ratio as a predictor of pleural thickening in patients with tuberculous pleurisy. Infect Dis Now 2021; 51:590-595. [PMID: 34581278 DOI: 10.1016/j.idnow.2020.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 11/23/2020] [Accepted: 11/27/2020] [Indexed: 10/22/2022]
Abstract
We evaluated the association between macrophage polarization and the development of pleural thickening in patients with tuberculous pleurisy. Patients with tuberculous pleurisy admitted to our hospital between October 2018 and March 2019 were prospectively recruited. Pleural fluid samples were obtained before treatment for detection of adenosine deaminase (ADA) and macrophage phenotype (M1: CD14+ CD86+; M2: CD14+ CD163+). Peripheral blood samples were subjected to interferon gamma release assay (IGRA). All subjects were administered standard anti-tuberculosis regimen (2HREZ/4HR); high-resolution CT was performed to determine pleural thickening (thickness>2mm) after completion of treatment. Pleural effusion in patients with thickened pleura had significantly more M1 but fewer M2 macrophages, and higher ADA level, as compared to those with normal pleura (P<0.05). No significant between-group difference was observed with respect to IGRA. In receiver operating characteristic (ROC) curve analysis, the optimal cut-off level of M1/M2 ratio for predicting pleural thickening was 1.149 (area under the curve: 0.842; sensitivity: 88.6%; specificity: 69.2%; positive predictive value: 86.3%; negative predictive value: 81.7%). M1/M2 ratio in the pleural fluid is a promising marker for predicting the development of pleural thickening in patients with tuberculous pleurisy. Macrophage-mediated immune response may play an important role in the pathogenesis of tuberculous pleurisy.
Collapse
Affiliation(s)
- C Yan
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - M Wang
- Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - F Sun
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China.
| | - L Cao
- Department of Clinical Laboratory, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - B Jia
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - Y Xia
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| |
Collapse
|
49
|
Chen J, Chen L, Yan C, Yu Z, Zou Y, Sun YH. Are cognition and personality related in budgerigars? Curr Zool 2021; 68:315-323. [PMID: 35592343 PMCID: PMC9113357 DOI: 10.1093/cz/zoab069] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/17/2021] [Indexed: 11/27/2022] Open
Abstract
In recent years, researchers have been attempting to relate differences in personality (e.g., boldness, aggressiveness, exploration tendency) to variation in cognition (performances in tasks that require learning, reasoning, attention, or memory, etc.) both theoretically and empirically. However, it is unclear on what basis personality and cognition might be associated with each other. Previous theory suggests a connection between fast–slow personality types and cognitive speed–accuracy tradeoffs. In this study, we tested this hypothesis in budgerigars and found that, in their 1st associative learning, birds with fast personality (less fearful of handling stress) were fast learners in the beginning, while slow personality individuals improved faster, but both types of birds did not differ in accuracy. However, these relationships were context-dependent. No significant relationship was found in subsequent learning tasks (reversal learning and a 2nd associative learning) in the familiar context (task setup and apparatus similar to the 1st associative learning). We then conducted a problem-solving experiment with novel setup and apparatus to test 1 possible explanation that the association between personality and cognition in the 1st associative learning might be caused by noncognitive constraint, such as fearfulness when facing novel task setup and apparatus. We found that fast individuals interacted more with the problem box and solved it, whereas the slow birds were not. We suggest that personalities can influence cognitive performances and trigger a cognitive speed-improvement tradeoff under the novel context. However, there are no consistent cognitive styles that co-varied with different personalities.
Collapse
Affiliation(s)
- Jiani Chen
- Institute of Innovation Ecology, Lanzhou University, Lanzhou 730000, China
- Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Lu Chen
- College of Life Science, Hebei University, Baoding 071002, China
| | - Chuan Yan
- Institute of Innovation Ecology, Lanzhou University, Lanzhou 730000, China
| | - Zibo Yu
- School of Natural Conservation, Beijing Forestry University, Beijing 100083, China
| | - Yuqi Zou
- Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yue-Hua Sun
- Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| |
Collapse
|
50
|
Wang Z, Cao L, Yan C, Niu Y, Chong K, Zhang Z. Cloning capacity helps seeds of Garcinia xanthochymus counter animal predation. Ecol Evol 2021; 11:12639-12650. [PMID: 34594527 PMCID: PMC8462166 DOI: 10.1002/ece3.8008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 07/06/2021] [Accepted: 07/13/2021] [Indexed: 11/16/2022] Open
Abstract
Seed predators have the potential to act as agents of natural selection that influence seed traits and seed fates, which in turn affect the whole plant population dynamic. Accordingly, plants deploy a variety of mechanisms (e.g., resistance and tolerance strategies) to lessen the impact of predation on seed crop or on an individual seed. In this study, we described a novel mechanism, seed cloning strategy, in a tropical plant species in countering animal predation. By conducting field- and laboratory-based germination experiments, we found that both rodent damaged and artificially damaged seed fragments of a large-seeded tree Garcinia xanthochymus (Clusiaceae) could successfully germinate and establish as seedlings. Tissue culture experiments revealed that G. xanthochymus has no endosperm in seeds, and its seed fragments own strong capacity of differentiation and cloning. Seed damage negatively affected seedling growth and germination, but the seed germination rate was remarkably high. Our study suggests that, seed cloning capacity, adopted by the large-seeded tree G. xanthochymus may act as a novel strategy counteract for seed predation and would play a significant role in stabilizing the mutualism between plant and animals.
Collapse
Affiliation(s)
- Zhen‐yu Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents in AgricultureInstitute of ZoologyChinese Academy of SciencesBeijingChina
- Key Laboratory of Poyang Lake Wetland and Watershed Research (Ministry of Education)College of Life SciencesJiangxi Normal UniversityNanchangChina
| | - Lin Cao
- College of Ecology and Environmental ScienceInstitute of Ecology and GeobotanyYunnan UniversityKunmingChina
| | - Chuan Yan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents in AgricultureInstitute of ZoologyChinese Academy of SciencesBeijingChina
| | - Yu‐da Niu
- Institute of BotanyChinese Academy of SciencesBeijingChina
| | - Kang Chong
- Institute of BotanyChinese Academy of SciencesBeijingChina
| | - Zhi‐bin Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents in AgricultureInstitute of ZoologyChinese Academy of SciencesBeijingChina
| |
Collapse
|