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Dragomir MP, Fuentes-Mattei E, Winkle M, Okubo K, Bayraktar R, Knutsen E, Qdaisat A, Chen M, Li Y, Shimizu M, Pang L, Liu K, Liu X, Anfossi S, Zhang H, Koch I, Tran AM, Mohapatra S, Ton A, Kaplan M, Anderson MW, Rothfuss SJ, Silasi R, Keshari RS, Ferracin M, Ivan C, Rodriguez-Aguayo C, Lopez-Berestein G, Georgescu C, Banerjee PP, Basar R, Li Z, Horst D, Vasilescu C, Bertilaccio MTS, Rezvani K, Lupu F, Yeung SC, Calin GA. Anti-miR-93-5p therapy prolongs sepsis survival by restoring the peripheral immune response. J Clin Invest 2023:158348. [PMID: 37261908 DOI: 10.1172/jci158348] [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] [Indexed: 06/03/2023] Open
Abstract
Sepsis remains a leading cause of human death and currently has no pathogenesis-specific therapy. Hampered progress is partly due to a lack of insight into deep mechanistic processes. In the last decade, deciphering the functions of small non-coding microRNAs (miRNAs) in sepsis pathogenesis became a dynamic research topic. To screen for new miRNA targets for sepsis therapeutics, we used human samples for miRNA array from peripheral blood mononuclear cells from sepsis patients and controls, blood samples from two cohorts of sepsis patients, and multiple animal models: mouse cecum ligation-puncture (CLP)-induced sepsis, mouse viral miRNA challenge, and baboon Gram-positive and Gram-negative sepsis models. miR-93-5p met the criteria for a therapeutic target, being overexpressed in baboons that died early after induction of sepsis, downregulated in humans who survived after sepsis, and correlated with negative clinical prognosticators for sepsis. Therapeutically, inhibiting miR-93-5p prolonged the overall survival of mice with CLP-induced sepsis, with a stronger effect in older mice. Mechanistically, anti-miR-93-5p therapy reduced inflammatory monocytes and increased circulating effector memory T cells, especially the CD4+ subset. AGO2-immunoprecipitation in miR-93-knockout T cells identified important regulatory receptors, such as CD28, as direct miR-93-5p target genes. In conclusion, miR-93-5p is a potential therapeutic target in sepsis through regulating both innate and adaptive immunity with possibly more benefit for the elderly than the young patients.
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Affiliation(s)
- Mihnea P Dragomir
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Enrique Fuentes-Mattei
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Melanie Winkle
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Keishi Okubo
- Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Recep Bayraktar
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Erik Knutsen
- Department of Medical Biology, Faculty of Health Sciences, The Arctic University of Norway, Tromsø, Norway
| | - Aiham Qdaisat
- Department of Emergency Medicine, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Meng Chen
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Yongfeng Li
- Department of Breast Surgery, Institute of Cancer and Basic Medicine (ICBM), Zhejiang, China
| | - Masayoshi Shimizu
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Lan Pang
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Kevin Liu
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Xiuping Liu
- Department of Experimental Therapeutics, Healgen Scientific, Houston, United States of America
| | - Simone Anfossi
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Huanyu Zhang
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Shandong, China
| | - Ines Koch
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Anh M Tran
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Swati Mohapatra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Anh Ton
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Mecit Kaplan
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Matthew W Anderson
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Spencer J Rothfuss
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Robert Silasi
- Cardiovascular Biology, Oklahoma Medical Research Foundation, Oklahoma City, United States of America
| | - Ravi S Keshari
- Cardiovascular Biology, Oklahoma Medical Research Foundation, Oklahoma City, United States of America
| | - Manuela Ferracin
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Cristina Ivan
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Cristian Rodriguez-Aguayo
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Gabriel Lopez-Berestein
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Constantin Georgescu
- Genes and Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, United States of America
| | - Pinaki P Banerjee
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Rafet Basar
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Ziyi Li
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - David Horst
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Catalin Vasilescu
- Department of Surgery, Fundeni Clinical Hospital, Bucharest, Romania
| | - Maria Teresa S Bertilaccio
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Katayoun Rezvani
- Department of Stem Cell Transplantation and Cellular Therapy, The Univerisity of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Florea Lupu
- Oklahoma Medical Research Foundation, Oklahoma City, United States of America
| | - Sai-Ching Yeung
- Department of Emergency Medicine, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - George A Calin
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
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2
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Babakhanlou R, Larkin K, Hita AG, Stroh J, Yeung SC. Stoma-related complications and emergencies. Int J Emerg Med 2022; 15:17. [PMID: 35534817 PMCID: PMC9082897 DOI: 10.1186/s12245-022-00421-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/29/2022] [Indexed: 11/10/2022] Open
Abstract
AbstractStoma creations are common procedures in surgical specialties. They can be created either as a temporary or a permanent measure. Despite advancements in surgical technique and stoma care, complications are common. Patients experiencing stoma-related complications often present to the emergency department. Emergency physicians are not expected to be stoma experts, yet they are often the first point of contact for patients experiencing stoma-related complications. Accordingly, emergency physicians should be familiar with the types of stomas and complications and emergencies associated with them so that they can appropriately address the problems related to stomas. This article will provide a review of emergencies and complications associated with ileostomies, colostomies, and urostomies.
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3
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Kotla S, Imanishi M, Zhang A, Ko KA, Samanthapudi V, Savage H, Schadler K, Abe R, Deswal AM, Lin S, Reyes-Gibby C, Yeung SC, Pownall HJ, Fujiwara K, Hamilton D, Li S, Wang G, Le NT, Abe JI. Abstract 518: Erk5 S496 Phosphorylation, But Not Erk5 Kinase Or Transcriptional Activity, Is Responsible For Promoting Macrophage Inflammation And Mitochondrial Dysfunction Via Upregulating Novel Site Of Nrf2 K518 Sumoylation. Arterioscler Thromb Vasc Biol 2022. [DOI: 10.1161/atvb.42.suppl_1.518] [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: 12/03/2022]
Abstract
ERK5 is a dual kinase-transcription factor, which contains two transcriptional transactivation domains in the C-terminus and a kinase domain in the N-terminus. Many ERK5 kinase inhibitors have been developed, and are being tested in clinical studies for cancer and inflammatory diseases. Recent data has raised questions regarding the functional role of these ERK5 kinase inhibitors. Specifically, the possible link between blockade of pro-inflammatory ERK5 S496 phosphorylation and the anti-inflammatory effects of ERK5-specific kinase inhibitors has largely been neglected. In this study, we aimed to study the role and regulatory mechanisms of ERK5 S496 phosphorylation on macrophage inflammation and the impact of ERK5-specific kinase inhibitors. ATP binding site deletion mutant of ERK5b (a kinase-dead mutant) inhibited KLF2 induction but not oxidized LDL (oxLDL)-induced ERK5 S496 phosphorylation and TNFα expression. In contrast, both specific ERK5 kinase inhibitors (AX15836 and XMD8-92) and a dual phosphorylation site mutant of ERK5 (AEF) inhibited not only KLF2 but also oxLDL-induced ERK5 S496 phosphorylation and TNFα induction. These data suggested that ERK5 S496 phosphorylation, but not ERK5 kinase activity, plays a crucial role in ERK5-mediated pro-inflammatory effects. We also discovered a key effect of ERK5 S496 phosphorylation on SUMOylation at a novel site of NRF2 (i.e., K518), which inhibited NRF2 transcriptional activity without affecting ERK5 kinase activity, and antagonized oxLDL-induced macrophage inflammation. The role of NRF2 activation on the efficiency of oxidative phosphorylation (OXPHOS) and ATP synthesis had previously been reported, and we found that both ERK5 S496A and NRF2 K518R mutants abolished oxLDL-induced reduction of OXPHOS, ATP, and NAD
+
levels. In summary, we discovered a novel mechanism in which ERK5 S496 phosphorylation directly inhibited NRF2 activity via SUMOylation of NRF2 at K518 and thereby induced macrophage inflammation and mitochondrial dysfunction. The often-neglected role of ERK S496 signaling should be carefully considered in the interpretation of prior reports of ERK5 knockdown and pharmacological kinase inhibition relative to cellular inflammation and mitochondrial dysfunction.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Nhat-Tu Le
- Univ of Texas MD Anderson Can, Houston, TX
| | | |
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4
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Imanishi M, Cheng H, Kotla S, Lin S, Deswal A, Ko K, Samanthapudi V, Le NT, Fujiwara K, Liao Z, Palaskas NL, Yusuf SW, Nurieva RI, Reyes-Gibby C, Yeung SC, Amir EAD, Burks JK, Kobayashi M, Yoshimoto M, Abe JI. Abstract 503: Multiparameter Mass Cytometry Reveals The Unique Response Of NaïVe B Cell Cd27
-
Subset With The Increase Of T-bet And Cd38 Expression After Radiation Therapy In Thoracic Cancer Patients. Arterioscler Thromb Vasc Biol 2022. [DOI: 10.1161/atvb.42.suppl_1.503] [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: 12/05/2022]
Abstract
Cancer Radiation therapy (RT) induces cardiovascular disease (CVD) even when the heart is shealed or not irradiated, but there is a paucity of available preventive measures for RT-induced CVD. Ionizing radiation (IR) induces senescence, which was originally discovered to suppress tumorigenesis by inducing cell cycle blockade and necrosis, and positioned IR as pro-senescence cancer therapy. IR-induced senescence cells secrete cytokines, growth factors, and reactive oxygen species (ROS), becoming so called senescence associated secretory phenotype (SASP), and we hypothesize that SASP induction in immune cells cause CVD after RT. Although the involvement of DNA damage response (DDR), efferocytosis, and clonal hematopoiesis drivers (CHD) to SASP induction has been suggested, the exact mechanisms through which RT induces SASP in a specific cell type remains unclear. We characterize most of the major human immune cell lineages in a single assay using mass cytometery (CyTOF). We generated a CyTOF panel which includes antibodies against various senescence phenotype, DDR, efferocytosis, and CHD. We isolated peripheral blood mononuclear cells (PBMCs) before and 3 month after RT from 16 thoracic cancer patients. First, we found the frequency of only B cell subtype was decreased after RT. Second, we obtained 138 functional profiling subsets by unsupervised clustering with our antibody set, and found that T-bet expression was increased in the largest B cell subset of naïve B Cell (CD27
-
) Ki67
lo
CD38
lo
DNMT3a
hi
after RT, which showed the good correlation with p-p90RSK expression in the samples from pre-RT and post-RT. Lastly, the significant increase of CD38 expression in the subsets of naïve B cell (CD27
-
) and CD8
+
T cell (EMRA) was detected. These data suggest the unique response of naïve B cell (CD27-) to RT with the increase of CD38 expression, and T-bet in the subset of B Cell (CD27
-
) Ki67
lo
CD38
lo
DNMT3a
hi
, and also the potential role of p90RSK activation in IR-induced T-bet expression. T-bet plays a role in developing the age-associated B cell (ABC), and the increase of CD38 expression promotes aging-related events. Therefore, the induction of T-bet and CD38 in naïve B (CD27
-
) cell after RT supports the novel role of naïve B cell in IR-induced SASP and subsequent CVD.
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Affiliation(s)
| | - Haizi Cheng
- The Univ of Texas Health Science Cntr at Houston, Houston, TX
| | | | | | | | - Kyung Ko
- MD Anderson Cancer Cntr, Houston, TX
| | | | - Nhat-Tu Le
- Houston Methodist Rsch institute, Houston, TX
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5
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Li S, Kotla S, Imanishi M, Ko KA, Samanthapudi V, Savage H, Schadler K, Deswal A, Lin S, Reyes-Gibby C, Yeung SC, Pownall HJ, Fujiwara K, Le NT, Wang G, Abe JI. Abstract 244: Differentially Expressed Genes Mediated By Erk5 S496 Phosphorylation In Hypercholesterolemia-induced Macrophage Reprogramming. Arterioscler Thromb Vasc Biol 2022. [DOI: 10.1161/atvb.42.suppl_1.244] [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: 12/05/2022]
Abstract
The crucial role of ERK5 S496 phosphorylation in reprogramming macrophage phenotype to pro-inflammatory senescent phenotype (PISP) has been reported, but the exact molecular mechanism remains unclear. This study focused on identifying the dysregulated molecular pathways and core genes that are differentially regulated in bone marrow derived macrophage (BMDMs) isolated from wild type and ERK5 S549A knock-in (KI) mice under normal or hypercholesterolemia (HC) after high-fat diet (HFD) and AAV-PCSK9 injection. The extent of atherosclerosis was inhibited in ERK5 S496A KI mice. We sequenced RNA-seq for wild type and ERK5 S549A KI mice and used Top Hat program (v2.0.12) with default parameters to map all reads to the mouse genome (Mus musculus GRCm38). Gene expression and significance of differential expression were calculated by Cuffdiff (v2.0.12). Differentially expressed genes (DEGs) were defined by Cuffdiff according to
Q
value ≤0.05 as a threshold. Hallmark analysis was performed by Gene Set Enrichment Analysis (GSEA v4.2.1). We used the R package “GOplot” to perform GO bubble plot, GO circle plot, and GO chord plot. We identified 784 DEGs regulated by HC-induced ERK5 S496 phosphorylation, and the GO analysis revealed that they are involved in critical senescent processes including cell cycle, cellular response to DNA damage stimulus, protein transport, and negative regulation of apoptotic process. Gene-annotation enrichment analysis (GOCircle) showed that Z-scores of both cell cycle and cellular response to DNA damage stimulus were negative in ERK5 S496A KI mice, suggesting the role of cell cycle and DNA damage response in inducing PISP. Interestingly, we only found 40 DEGs in BMDMs isolated from normal chow diet and HFD-fed wild type mice, and 15 out of 40 DEGs were significantly regulated by ERK5 S496 phosphorylation, supporting the critical role of ERK5 S496 phosphorylation in HC-mediated macrophage reprogramming. Our study identified 10 core genes (Ahr, Gclm, H3C3, H4c11, Lpar1, Megf9, Nfe2, Ppih, Rpl22l1, and Tpt1) that are regulated by HC-mediated ERK5 S496 phosphorylation, which might be crucial for HC-induced PISP. However, functional analysis is further needed to validate their roles in PISP induction.
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Affiliation(s)
- Shengyu Li
- Houston Methodist Rsch Institute, Houston, TX
| | | | | | | | | | | | | | | | | | | | | | | | | | - Nhat-Tu Le
- Houston Methodist Rsch Institute, Houston, TX
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6
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Liu W, Qdaisat A, Lopez G, Narayanan S, Underwood S, Spano M, Reddy A, Guo Y, Yeung SC, Bruera E, Cohen L. Association Between Acupoint Selection, Target Symptoms, and Traditional Chinese Medicine Diagnosis in Real-Time Clinical Practice in a Comprehensive Cancer Center. Integr Cancer Ther 2021; 19:1534735420928490. [PMID: 32508209 PMCID: PMC7287401 DOI: 10.1177/1534735420928490] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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] [Indexed: 11/23/2022] Open
Abstract
Background: Acupuncture intervention in actual practice is rarely
reported and may be different from that applied in acupuncture research.
Objectives: To review acupuncture practice in an integrative
medicine clinic and characterize the association between targeted symptoms,
traditional Chinese medicine (TCM) diagnosis, and acupoint selection.
Methods: We reviewed outpatient acupuncture records from March
2016 to April 2018. Statistical analyses were applied to characterize referral
symptoms and associated TCM diagnosis as well as acupoint selection.
Results: The final analysis included 5393 acupuncture records
(1264 patients). Twelve TCM diagnosis components were identified in the referral
symptoms of pain, neuropathy, xerostomia, and hot flashes. Pain was associated
with 78 different TCM diagnoses (combinations of TCM diagnosis components).
Total of 217 different acupoints were used in the acupuncture treatments (1739)
for neuropathy. The acupoint yintang was used in 73.8% of the visits for
neuropathy, yet only in 26.5% (P < .001) of the treatments
when patients had a TCM diagnosis of qi deficiency, qi stagnation, and blood
stagnation. Similarly, both consistencies and variations were seen in acupoint
selection with each targeted symptom and its associated TCM diagnoses.
Conclusions: TCM diagnosis was not homogeneous among
acupuncture treatments for a single referral symptom. In contrast to most of the
research on acupuncture for symptom control, there were considerable variations
in acupoint selection among treatments for the same symptom in a clinical
setting. Future research is needed to examine the clinical relevance of a fixed
intervention structure in acupuncture research and the value of individualized
acupuncture treatment.
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Affiliation(s)
- Wenli Liu
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Aiham Qdaisat
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gabriel Lopez
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Susan Underwood
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael Spano
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Akhila Reddy
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ying Guo
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sai-Ching Yeung
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Eduardo Bruera
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lorenzo Cohen
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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7
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Cheng C, Ho RTH, Guo Y, Zhu M, Yang W, Li Y, Liu Z, Zhuo S, Liang Q, Chen Z, Zeng Y, Yang J, Zhang Z, Zhang X, Monroe-Wise A, Yeung SC. Development and Feasibility of a Mobile Health-Supported Comprehensive Intervention Model (CIMmH) for Improving the Quality of Life of Patients With Esophageal Cancer After Esophagectomy: Prospective, Single-Arm, Nonrandomized Pilot Study. J Med Internet Res 2020; 22:e18946. [PMID: 32808933 PMCID: PMC7463393 DOI: 10.2196/18946] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/14/2020] [Accepted: 06/25/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Patients with esophageal cancer often experience clinically relevant deterioration of quality of life (QOL) after esophagectomy owing to malnutrition, lack of physical exercise, and psychological symptoms. OBJECTIVE This study aimed to evaluate the feasibility, safety, and efficacy of a comprehensive intervention model using a mobile health system (CIMmH) in patients with esophageal cancer after esophagectomy. METHODS Twenty patients with esophageal cancer undergoing the modified McKeown surgical procedure were invited to join the CIMmH program with both online and offline components for 12 weeks. The participants were assessed before surgery and again at 1 and 3 months after esophagectomy. QOL, depressive symptoms, anxiety, stress, nutrition, and physical fitness were measured. RESULTS Of the 20 patients, 16 (80%) completed the program. One month after esophagectomy, patients showed significant deterioration in overall QOL (P=.02), eating (P=.005), reflux (P=.04), and trouble with talking (P<.001). At the 3-month follow-up, except for pain (P=.02), difficulty with eating (P=.03), dry mouth (P=.04), and trouble with talking (P=.003), all other QOL dimensions returned to the preoperative level. There were significant reductions in weight (P<.001) and BMI (P=.02) throughout the study, and no significant changes were observed for physical fitness measured by change in the 6-minute walk distance between baseline and the 1-month follow-up (P=.22) or between baseline and the 3-month follow-up (P=.52). Depressive symptoms significantly increased 1 month after surgery (P<.001), while other psychological measures did not show relevant changes. Although there were declines in many measures 1 month after surgery, these were much improved at the 3-month follow-up, and the recovery was more profound and faster than with traditional rehabilitation programs. CONCLUSIONS The CIMmH was feasible and safe and demonstrated encouraging efficacy testing with a control group for enhancing recovery after surgery among patients with esophageal cancer in China. TRIAL REGISTRATION Chinese Clinical Trial Registry (ChiCTR-IPR-1800019900); http://www.chictr.org.cn/showprojen.aspx?proj=32811.
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Affiliation(s)
- Chao Cheng
- Department of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Rainbow Tin Hung Ho
- Department of Social Work & Social Administration, The University of Hong Kong, Hong Kong, China.,Centre on Behavioral Health, The University of Hong Kong, Hong Kong, China
| | - Yan Guo
- Department of Medical statistics, School of Public Health, Sun-Yat-Sen University, Guangzhou, China.,Sun Yat-sen Center for Migrant Health Policy, Guangzhou, China.,Sun Yat-sen Center for Global Health, Guangzhou, China
| | - Mengting Zhu
- Department of Medical statistics, School of Public Health, Sun-Yat-Sen University, Guangzhou, China
| | - Weixiong Yang
- Department of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yiran Li
- Department of Medical statistics, School of Public Health, Sun-Yat-Sen University, Guangzhou, China
| | - Zhenguo Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shuyu Zhuo
- Department of Clinical Nutrition, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qi Liang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhenghong Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yu Zeng
- Department of Medical statistics, School of Public Health, Sun-Yat-Sen University, Guangzhou, China
| | - Jiali Yang
- Department of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhanfei Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xu Zhang
- Department of Thoracic Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Aliza Monroe-Wise
- Department of Global Health, University of Washington, Seattle, WA, United States
| | - Sai-Ching Yeung
- Department of Emergency Medicine, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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8
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Cheng C, Yang W, You N, Jia M, Yeung SC, Yu M, Wang Y, Fu X, Liu Z, Zeng B, Ou Q, Wu X, Shao Y, Wang S. Circulating tumor DNA dynamics to predict cancer recurrence/metastasis in Chinese pathologic stage I lung adenocarcinoma. J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.15_suppl.3537] [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: 11/20/2022] Open
Abstract
3537 Background: Pathologic(p)stage I lung adenocarcinoma (LUAD) patients exhibit high levels of genetic heterogeneity and the association between the genomic characteristics of (p)stage I LUADs and tumor recurrence remains poorly understood. Circulating tumor DNA (ctDNA) monitoring after resection represents a useful tool to predict response to therapy and tumor recurrence but its application in (p)stage I LUAD patients remains controversial. In addition, it is of great clinical interest to decipher the difference of genetic features between ground-glass opacity (GGO) and solid nodules (non-GGO) subgroups. Methods: Tumor tissues and matched post-operative plasma samples were collected from a total of 86 Chinese (p)stage I LUAD patients who were enrolled in a clinical study (NCT03172156). Comprehensive genomic profiling was performed using capture-based hybrid next generation sequencing by targeting 422 cancer relevant genes. Results: EGFR and TP53 represent commonly mutated genes in this cohort of (p)stage I lung adenocarcinoma, followed by alterations in ALK, PIK3CA, STK11and MYC. For a median follow up period of 21.54 months after surgical resection, we observed that ctDNA positivity significantly correlated with an increased probability of early tumor recurrence or metastasis ( P= 0.03, HR = 7.9), and in particular, the EGFR mutation status of ctDNA samples rather than that of primary tumor samples significantly correlated with shorter disease-free survival (DFS). Further comparison between GGO and non-GGO subgroups indicated that the frequency of TP53 mutations in non-GGO was markedly higher than that in GGO (48% vs 20%, P< 0.05). In addition, pathway analysis showed that the epigenetic regulation pathway was more frequently affected in the GGO subgroup, while impaired apoptosis/cell cycle pathway was more enriched in the non-GGO LUADs. Conclusions: Our data show that ctDNA positivity, including the EGFR mutation status, significantly correlated with early relapse or metastasis after surgery, representing a useful tool to predict treatment response and tumor relapse in (p)stage I LUAD patients. Mutated TP53 was more abundant in non-GGO comparing to GGO (p)stage I LUADs that may act as potential oncogenic driver in LUAD development and/or disease progression. Clinical trial information: NCT03172156 .
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Affiliation(s)
- Chao Cheng
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Weixiong Yang
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Na You
- Department of Statistical Science, School of Mathematics and Computational Science & Southern China Research Center of Statistical Science, Sun Yat-sen University, Guangzhou, China
| | - Minghan Jia
- Department of Breast Cancer, Cancer Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | | | - Man Yu
- Translational Medicine Research Institute, Geneseeq Technology Inc., Toronto, ON, Canada
| | | | - Xiayu Fu
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhenguo Liu
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Bo Zeng
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qiuxiang Ou
- Translational Medicine Research Institute, Geneseeq Technology Inc., Toronto, ON, Canada
| | - Xue Wu
- Translational Medicine Research Institute, Geneseeq Technology Inc., Toronto, ON, Canada
| | - Yang Shao
- Nanjing Geneseeq Technology Inc., Nanjing, China
| | - Siyu Wang
- Sun Yat-sen University Cancer Center, Guangzhou, China
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9
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Yeung SC, Qdaisat A, Kamal M, Al-Breiki A, Goswami B, Wu CC, Zhou S, Rice T, Alagapan K. CLO20-067: Clinical Characteristics, Management and Outcome of Incidental Pulmonary Embolism in Cancer Patients: A Case-Control Study. J Natl Compr Canc Netw 2020. [DOI: 10.6004/jnccn.2019.7407] [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: 11/17/2022]
Affiliation(s)
- Sai-Ching Yeung
- aThe University of Texas MD Anderson Cancer Center, Houston, TX
| | - Aiham Qdaisat
- aThe University of Texas MD Anderson Cancer Center, Houston, TX
| | - Mona Kamal
- aThe University of Texas MD Anderson Cancer Center, Houston, TX
| | - Aisha Al-Breiki
- aThe University of Texas MD Anderson Cancer Center, Houston, TX
| | - Biman Goswami
- aThe University of Texas MD Anderson Cancer Center, Houston, TX
| | - Carol C. Wu
- aThe University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - Terry Rice
- aThe University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kumar Alagapan
- aThe University of Texas MD Anderson Cancer Center, Houston, TX
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10
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Liu W, Qdaisat A, Lopez G, Narayanan S, Underwood S, Spano M, Reddy A, Guo Y, Zhou S, Yeung SC, Bruera E, Garcia MK, Cohen L. Acupuncture for Hot Flashes in Cancer Patients: Clinical Characteristics and Traditional Chinese Medicine Diagnosis as Predictors of Treatment Response. Integr Cancer Ther 2019; 18:1534735419848494. [PMID: 31046489 PMCID: PMC6501481 DOI: 10.1177/1534735419848494] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background: Acupuncture is a recognized integrative modality for managing hot flashes. However, data regarding predictors for response to acupuncture in cancer patients experiencing hot flashes are limited. We explored associations between patient characteristics, including traditional Chinese medicine (TCM) diagnosis, and treatment response among cancer patients who received acupuncture for management of hot flashes. Methods: We reviewed acupuncture records of cancer outpatients with the primary reason for referral listed as hot flashes who were treated from March 2016 to April 2018. Treatment response was assessed using the hot flashes score within a modified Edmonton Symptom Assessment Scale (0-10 scale) administered immediately before and after each acupuncture treatment. Correlations between TCM diagnosis, individual patient characteristics, and treatment response were analyzed. Results: The final analysis included 558 acupuncture records (151 patients). The majority of patients were female (90%), and 66% had breast cancer. The median treatment response was a 25% reduction in the hot flashes score. The most frequent TCM diagnosis was qi stagnation (80%) followed by blood stagnation (57%). Older age (P = .018), patient self-reported anxiety level (P = .056), and presence of damp accumulation in TCM diagnosis (P = .047) were correlated with greater hot flashes score reduction. Conclusions: TCM diagnosis and other patient characteristics were predictors of treatment response to acupuncture for hot flashes in cancer patients. Future research is needed to further explore predictors that could help tailor acupuncture treatments for these patients.
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Affiliation(s)
- Wenli Liu
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Aiham Qdaisat
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gabriel Lopez
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Susan Underwood
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael Spano
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Akhila Reddy
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ying Guo
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Shouhao Zhou
- 2 Pennsylvania State University, Hershey, PA, USA
| | - Sai-Ching Yeung
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Eduardo Bruera
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M Kay Garcia
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lorenzo Cohen
- 1 University of Texas MD Anderson Cancer Center, Houston, TX, USA
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11
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Schiff BA, McMurphy AB, Jasser SA, Younes MN, Doan D, Yigitbasi OG, Kim S, Zhou G, Mandal M, Bekele BN, Holsinger FC, Sherman SI, Yeung SC, El-Naggar AK, Myers JN. Editor's Note: Epidermal Growth Factor Receptor (EGFR) Is Overexpressed in Anaplastic Thyroid Cancer, and the EGFR Inhibitor Gefitinib Inhibits the Growth of Anaplastic Thyroid Cancer. Clin Cancer Res 2019; 25:4862. [PMID: 31371312 DOI: 10.1158/1078-0432.ccr-19-2052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Lee MH, Fang L, Chen B, Choi HH, Shin JH, Phan L, Yeung SC. ID:4003 COP9 signalosome in regulating EGFR oncogenic signals. Biomed Res Ther 2017. [DOI: 10.15419/bmrat.v4is.213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The constitutive photomorphogenesis 9 signalosome (CSN) regulates the stability of tumor suppressor and oncogenic proteins via proteasome-mediated protein degradation. The detailed regulatory mechanisms of CSN subunit expression in tumorigenesis remain to be illustrated. We demonstrated several important biological functions of CSN6: p53 signal transduction,neddylation regulation of Cullin, F-box protein ubiquitination, and Myc stability regulation. Biochemical studies demonstrated that CSN6 is involved in cell cycle regulator stability function and various cancer signaling pathways, including epidermal growth factor receptor (EGFR) pathway. We show that CSN6 overexpression is frequently observed in human colorectal cancers, which leads to drug resistance in anti-EGFR treatment and is correlated with poor clinical survival. We present amechanism for the role of CSN6 in ERK signaling cascade and provide new insights into the functional role of CSN6 deregulation during tumorigenesis.
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Dong H, Ma L, Gan J, Lin W, Chen C, Yao Z, Du L, Zheng L, Ke C, Huang X, Song H, Kumar R, Yeung SC, Zhang H. PTPRO represses ERBB2-driven breast oncogenesis by dephosphorylation and endosomal internalization of ERBB2. Oncogene 2017; 36:410-422. [PMID: 27345410 PMCID: PMC5269534 DOI: 10.1038/onc.2016.213] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 05/05/2016] [Accepted: 05/08/2016] [Indexed: 02/05/2023]
Abstract
The plasma membrane-associated tyrosine phosphatase PTPRO is frequently transcriptionally repressed in cancers and signifies poor prognosis of breast cancer patients. In this study, deletion of Ptpro in MMTV-Erbb2 transgenic mice dramatically shortened the mammary tumor latency and accelerated tumor growth due to loss of Ptpro within the breast cancer cells but not in surrounding tissue as confirmed by hetero-transplantation studies. Both in vitro and in vivo data demonstrated that the phosphatase activity was required for the inactivation of ERBB2 and its downstream signaling. PTPRO regulated the phosphorylation status of ERBB2 at Y1248. Co-immunoprecipitation and proximity ligation assay (Duolink) indicated that PTPRO directly physically interacted with ERBB2. Moreover, PTPRO phosphatase activity shortened the half-life of ERBB2 by increasing endocytotic degradation. PTPRO reexpression by demethylation treatment using 5-azacytidine reduced the proliferation and colony formation potential in ERBB2-positive breast cancer cells. Taken together, PTPRO inhibited ERBB2-driven breast cancer through dephosphorylation leading to dual effects of ERBB2 signaling suppression and endosomal internalization of ERBB2, Therefore, reexpression of PTPRO may be a potential therapy for ERBB2-overexpressing breast cancer.
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Affiliation(s)
- H Dong
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - L Ma
- Department of Gastroenterology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - J Gan
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - W Lin
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - C Chen
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - Z Yao
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - L Du
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - L Zheng
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - C Ke
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - X Huang
- MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - H Song
- Department of Cell Biology, Xi'an Jiaotong University Suzhou Academy, Suzhou, China
| | - R Kumar
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, George Washington University, Washington DC, USA
| | - S C Yeung
- Cancer Research Center, Shantou University Medical College, Shantou, China
- Department of Emergency Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA. E-mail:
| | - H Zhang
- Cancer Research Center, Shantou University Medical College, Shantou, China
- Department of Biotherapy, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, China
- Cancer Research Center, Shantou University Medical College, Xinling Road No. 22, Shantou 515041, ChinaE-mail:
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14
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Zhou DS, Wang HB, Zhou ZG, Zhang YJ, Zhong Q, Xu L, Huang YH, Yeung SC, Chen MS, Zeng MS. TACC3 promotes stemness and is a potential therapeutic target in hepatocellular carcinoma. Oncotarget 2016. [PMID: 26219398 PMCID: PMC4695177 DOI: 10.18632/oncotarget.4643] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Transforming acidic coiled-coil protein 3 (TACC3) is essential for cell mitosis and transcriptional functions. In the present study, we first demonstrated that both TACC3 protein and mRNA levels were elevated in HCC tissue samples compared with non-cancerous tissue biopsies according to western blot analyses, immunohistochemistry (IHC) and quantitative real-time PCR (qRT-PCR) assays. Moreover, high TACC3 expression was positively correlated with poor overall survival (OS) and disease-free survival (DFS) (p < 0.001). Using HCC cell lines, we then demonstrated that either TACC3 knockdown or treatment with the potential TACC3 inhibitor KHS101 suppressed cell growth and sphere formation as well as the expression of stem cell transcription factors, including Bmi1, c-Myc and Nanog. Silencing TACC3 may suppress the Wnt/β-catenin and PI3K/AKT signaling pathways, which regulate cancer stem cell-like characteristics. Taken together, these data suggest that TACC3 is enriched in HCC and that TACC3 down-regulation inhibits the proliferation, clonogenicity, and cancer stem cell-like phenotype of HCC cells. KHS101, a TACC3 inhibitor, may serve as a novel therapeutic agent for HCC patients with tumors characterized by high TACC3 expression.
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Affiliation(s)
- Dong-Sheng Zhou
- Sun Yat-sen University Cancer Center, State Key Laboratory of Southern China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China.,Shandong Provincial Qianfoshan Hospital, Jinan, P. R. China
| | - Hong-Bo Wang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Southern China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P. R. China
| | - Zhong-Guo Zhou
- Sun Yat-sen University Cancer Center, State Key Laboratory of Southern China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Yao-Jun Zhang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Southern China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Qian Zhong
- Sun Yat-sen University Cancer Center, State Key Laboratory of Southern China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Li Xu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Southern China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Yue-Hua Huang
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P. R. China
| | - Sai-Ching Yeung
- Department of General Internal Medicine, Ambulatory Treatment and Emergency Care, University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Min-Shan Chen
- Sun Yat-sen University Cancer Center, State Key Laboratory of Southern China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Mu-Sheng Zeng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Southern China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
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15
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Phan L, Chou PC, Velazquez-Torres G, Samudio I, Parreno K, Huang Y, Tseng C, Vu T, Gully C, Su CH, Wang E, Chen J, Choi HH, Fuentes-Mattei E, Shin JH, Shiang C, Grabiner B, Blonska M, Skerl S, Shao Y, Cody D, Delacerda J, Kingsley C, Webb D, Carlock C, Zhou Z, Hsieh YC, Lee J, Elliott A, Ramirez M, Bankson J, Hazle J, Wang Y, Li L, Weng S, Rizk N, Wen YY, Lin X, Wang H, Wang H, Zhang A, Xia X, Wu Y, Habra M, Yang W, Pusztai L, Yeung SC, Lee MH. The cell cycle regulator 14-3-3σ opposes and reverses cancer metabolic reprogramming. Nat Commun 2015; 6:7530. [PMID: 26179207 PMCID: PMC4507299 DOI: 10.1038/ncomms8530] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [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: 02/12/2015] [Accepted: 05/18/2015] [Indexed: 12/16/2022] Open
Abstract
Extensive reprogramming of cellular energy metabolism is a hallmark of cancer. Despite its importance, the molecular mechanism controlling this tumour metabolic shift remains not fully understood. Here we show that 14-3-3σ regulates cancer metabolic reprogramming and protects cells from tumourigenic transformation. 14-3-3σ opposes tumour-promoting metabolic programs by enhancing c-Myc poly-ubiquitination and subsequent degradation. 14-3-3σ demonstrates the suppressive impact on cancer glycolysis, glutaminolysis, mitochondrial biogenesis and other major metabolic processes of tumours. Importantly, 14-3-3σ expression levels predict overall and recurrence-free survival rates, tumour glucose uptake and metabolic gene expression in breast cancer patients. Thus, these results highlight that 14-3-3σ is an important regulator of tumour metabolism, and loss of 14-3-3σ expression is critical for cancer metabolic reprogramming. We anticipate that pharmacologically elevating the function of 14-3-3σ in tumours could be a promising direction for targeted anti-cancer metabolism therapy development in future.
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Affiliation(s)
- Liem Phan
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Ping-Chieh Chou
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Guermarie Velazquez-Torres
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Ismael Samudio
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Kenneth Parreno
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yaling Huang
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Chieh Tseng
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Thuy Vu
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Chris Gully
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Chun-Hui Su
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Edward Wang
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Jian Chen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Hyun-Ho Choi
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Enrique Fuentes-Mattei
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ji-Hyun Shin
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Christine Shiang
- 1] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA. [2] Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Brian Grabiner
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Marzenna Blonska
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Stephen Skerl
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yiping Shao
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Dianna Cody
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jorge Delacerda
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Charles Kingsley
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Douglas Webb
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Colin Carlock
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
| | - Zhongguo Zhou
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yun-Chih Hsieh
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jaehyuk Lee
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Andrew Elliott
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marc Ramirez
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jim Bankson
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - John Hazle
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yongxing Wang
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lei Li
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Shaofan Weng
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Nibal Rizk
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yu Ye Wen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Xin Lin
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Hua Wang
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Huamin Wang
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Aijun Zhang
- Methodist Hospital Research Institute, Houston, TX 77030, USA
| | - Xuefeng Xia
- Methodist Hospital Research Institute, Houston, TX 77030, USA
| | - Yun Wu
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mouhammed Habra
- Department of Endocrinology Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Wei Yang
- Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lajos Pusztai
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Sai-Ching Yeung
- 1] Department of Endocrinology Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Department of Emergency Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mong-Hong Lee
- 1] Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. [2] Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX 77030, USA
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16
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Wen YY, Chou PC, Phan L, Su CH, Chen J, Hsieh YC, Xue YW, Qu CJ, Gully C, Parreno K, Teng C, Hsu SL, Yeung SC, Wang H, Lee MH. DNA Damage-Mediated c-Myc Degradation Requires 14-3-3 Sigma. ACTA ACUST UNITED AC 2013. [DOI: 10.1166/ch.2013.1002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Esteva FJ, Moulder SL, Gonzalez-Angulo AM, Ensor J, Murray JL, Green MC, Koenig KB, Lee MH, Hortobagyi GN, Yeung SC. Phase I trial of exemestane in combination with metformin and rosiglitazone in nondiabetic obese postmenopausal women with hormone receptor-positive metastatic breast cancer. Cancer Chemother Pharmacol 2012; 71:63-72. [PMID: 23053261 DOI: 10.1007/s00280-012-1977-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 09/13/2012] [Indexed: 12/21/2022]
Abstract
PURPOSE Obese women with breast cancer have worse prognosis than women with normal body mass index. Endocrine therapy resistance is in part mediated by insulin resistance in obese women with breast cancer. We investigated the tolerability and pharmacokinetics of exemestane in combination with metformin and rosiglitazone in nondiabetic overweight and obese postmenopausal women with hormone receptor-positive metastatic breast cancer. METHODS Patients had previously received chemotherapy and endocrine therapy for breast cancer. Exemestane was given as 25 mg orally per day. Metformin (M) and rosiglitazone (R) were given twice daily. Dose level 1 consisted of M 1,500 mg/day and R 6 mg/day. Dose level 2 consisted of M 2,000 mg/day and R 8 mg/day. Plasma concentrations of exemestane were measured on days 1, 8, and 15. RESULTS Twenty patients were enrolled. Fourteen patients received exemestane, metformin, and rosiglitazone. Six patients received exemestane with metformin only (2,000 mg/day). Both regimens were well tolerated at the highest doses tested, and there were no notable changes in plasma exemestane levels. Six patients (30%) had stable disease for 6 months or longer. CONCLUSIONS Oral daily administration of exemestane (25 mg) and metformin (2,000 mg) with and without rosiglitazone (8 mg) daily was well tolerated. Exemestane pharmacokinetics were not altered by metformin and rosiglitazone.
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Affiliation(s)
- Francisco J Esteva
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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18
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Chan KH, Yeung SC, Yao TJ, Ip MSM, Cheung AHK, Chan-Yeung MMW, Mak JCW. Elevated plasma adiponectin levels in patients with chronic obstructive pulmonary disease. Int J Tuberc Lung Dis 2010; 14:1193-1200. [PMID: 20819268] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND Adiponectin is an anti-inflammatory adipokine that may play a role in chronic obstructive pulmonary disease (COPD) pathogenesis. OBJECTIVE To investigate the relationship between adiponectin, interleukin (IL) 6, IL-8 and C-reactive protein (CRP) and COPD by evaluating these biomarkers in ever-smokers with or without the disease. METHOD Plasma levels of adiponectin, IL-6, IL-8 and CRP were measured using commercially available kits in COPD patients (n = 71), healthy ever-smokers (n = 62) and non-smokers (n = 51). RESULTS There were significant increases in plasma adiponectin, IL-6 and CRP in COPD patients (median [IQR] 4.39 microg/ml [2.68-6.98], 4.19 pg/ml [<2.40-6.40], 8.75 mg/l [4.26-40.63], respectively) compared to healthy ever-smokers (1.90 microg/ml [0.86-2.86], <2.40 pg/ml [<2.40-2.77], 3.71 mg/l [1.97-10.37 mg/l], respectively, P < 0.001) and non-smokers (1.76 microg/ml [1.34-2.52], <2.40 pg/ml [<2.40-2.78], 3.12 mg/l [2.11-5.71], respectively, P < 0.001). COPD patients had lower plasma IL-8 levels than healthy ever-smokers. Among ever-smokers with or without COPD, plasma adiponectin, IL-6 and CRP levels were inversely correlated with forced expiratory volume in 1 second (% predicted) after adjustment for age, body mass index, smoking status and pack-years. CONCLUSION Our findings suggest that in COPD patients, adiponectin might be associated with COPD pathogenesis.
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Affiliation(s)
- K H Chan
- Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
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Chen J, Kobayashi M, Darmanin S, Qiao Y, Gully C, Zhao R, Yeung SC, Lee MH. Pim-1 plays a pivotal role in hypoxia-induced chemoresistance. Oncogene 2009; 28:2581-92. [PMID: 19483729 DOI: 10.1038/onc.2009.124] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Hypoxia changes the responses of cancer cells to many chemotherapy agents, resulting in chemoresistance. The underlying molecular mechanism of hypoxia-induced drug resistance remains unclear. Pim-1 is a survival kinase, which phosphorylates Bad at serine 112 to antagonize drug-induced apoptosis. Here we show that hypoxia increases Pim-1 in a hypoxia-inducible factor-1alpha-independent manner. Inhibition of Pim-1 function by dominant-negative Pim-1 dramatically restores the drug sensitivity to apoptosis induced by chemotherapy under hypoxic conditions in both in vitro and in vivo tumor models. Introduction of siRNAs for Pim-1 also resensitizes cancer cells to chemotherapy drugs under hypoxic conditions, whereas forced overexpression of Pim-1 endows solid tumor cells with resistance to cisplatin, even under normoxia. Dominant-negative Pim-1 prevents a decrease in mitochondrial transmembrane potential in solid tumor cells, which is normally induced by cisplatin (CDDP), followed by the reduced activity of Caspase-3 and Caspase-9, indicating that Pim-1 participates in hypoxia-induced drug resistance through the stabilization of mitochondrial transmembrane potential. Our results demonstrate that Pim-1 is a pivotal regulator involved in hypoxia-induced chemoresistance. Targeting Pim-1 may improve the chemotherapeutic strategy for solid tumors.
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Affiliation(s)
- J Chen
- Division of Cancer-Related Genes, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
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20
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Abstract
Id3 (inhibitor of DNA binding/differentiation), a member of the Id helix-loop-helix protein family, has long been studied as a positive regulator of proliferation and a negative regulator of differentiation. In this study, we examined the expression pattern and cellular phenotypes of Id3 in postnatal and adult mouse retina. Id3 was mainly expressed in the early postnatal inner retina. From the late postnatal development towards adulthood, Id3 expression was confined to the ganglion cell layer and the inner nuclear layer. Colocalization analysis showed that Id3 positive cells were identified as retinal ganglion cells and amacrine cells. The differential expression profiles of Id3 provide the groundwork for the elucidation of its possible role in retinal development.
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Affiliation(s)
- S C Yeung
- Department of Anatomy, Faculty of Medicine, The University of Hong Kong, Hong Kong
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21
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Schiff BA, McMurphy AB, Jasser SA, Younes MN, Doan D, Yigitbasi OG, Kim S, Zhou G, Mandal M, Bekele BN, Holsinger FC, Sherman SI, Yeung SC, El-Naggar AK, Myers JN. Epidermal Growth Factor Receptor (EGFR) Is Overexpressed in Anaplastic Thyroid Cancer, and the EGFR Inhibitor Gefitinib Inhibits the Growth of Anaplastic Thyroid Cancer. Clin Cancer Res 2004; 10:8594-602. [PMID: 15623643 DOI: 10.1158/1078-0432.ccr-04-0690] [Citation(s) in RCA: 124] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE No effective treatment options currently are available to patients with anaplastic thyroid cancer (ATC), resulting in high mortality rates. Epidermal growth factor (EGF) has been shown to play a role in the pathogenesis of many types of cancer, and its receptor (EGFR) provides an attractive target for molecular therapy. EXPERIMENTAL DESIGN The expression of EGFR was determined in ATC in vitro and in vivo and in human tissue arrays of ATC. We assessed the potential of the EGFR inhibitor gefitinib ("Iressa," ZD1839) to inhibit EGFR activation in vitro and in vivo, inhibit ATC cellular proliferation, induce apoptosis, and reduce the growth of ATC cells in vivo when administered alone and in combination with paclitaxel. RESULTS EGFR was overexpressed in ATC cell lines in vitro and in vivo and in human ATC specimens. Activation of EGFR by EGF was blocked by the addition of gefitinib. In vitro studies showed that gefitinib greatly inhibited cellular proliferation and induced apoptosis in ATC cell lines and slowed tumor growth in a nude mouse model of thyroid carcinoma cells injected subcutaneously. CONCLUSIONS ATC cells consistently overexpress EGFR, rendering this receptor a potential target for molecular therapy. Gefitinib effectively blocks activation of EGFR by EGF, inhibits ATC cellular proliferation, and induces apoptosis in vitro. Our in vivo results show that gefitinib has significant antitumor activity against ATC in a subcutaneous nude mouse tumor model and therefore is a potential candidate for human clinical trials.
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Affiliation(s)
- Bradley A Schiff
- Department of Head and Neck Surgery, Baylor College of Medicine, Houston, Texas 77030, USA
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22
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Pan J, Xu G, Yeung SC. Cytochrome c release is upstream to activation of caspase-9, caspase-8, and caspase-3 in the enhanced apoptosis of anaplastic thyroid cancer cells induced by manumycin and paclitaxel. J Clin Endocrinol Metab 2001; 86:4731-40. [PMID: 11600533 DOI: 10.1210/jcem.86.10.7860] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We previously demonstrated that the combination of a farnesyltransferase inhibitor, manumycin A, and paclitaxel had a synergistic antineoplastic effect on anaplastic thyroid cancer. In this study we investigated the apoptosis pathway involved. In ARO and KAT-4 cells, manumycin- plus paclitaxel-induced DNA fragmentation was blocked by the inhibitors of caspase-9, caspase-8, and caspase-3. The drug combination enhanced the activation of caspase-9, caspase-8, and caspase-3 and cytochrome c release into the cytosol. Cytochrome c release was not affected by the inhibitors of caspase-9, caspase-8 and caspase-3. In a cell-free reconstitution assay, DNA fragmentation occurred after incubating nuclei purified from untreated KAT-4 cells with deoxy-ATP, exogenous cytochrome c and S-100 extracts from control KAT-4 cells, and also after incubation of purified KAT-4 nuclei with S-100 extracts from KAT-4 cells treated with manumycin-plus-paclitaxel. In both cases, the DNA fragmentation was blocked by the inhibitors of caspase-9, caspase-8 and caspase-3. We concluded that the cytochrome c release was upstream of the activation of caspase-9, caspase-8, and caspase-3 in the enhanced apoptosis of anaplastic thyroid cancer cells treated with manumycin plus paclitaxel, and that the interaction between manumycin and paclitaxel occurred at or upstream of cytochrome c in the apoptosis regulatory pathway in anaplastic thyroid cancer cells.
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Affiliation(s)
- J Pan
- Section of Endocrine Neoplasia and Hormonal Disorders, Department of Internal Medicine Specialties, University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
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Xu G, Pan J, Martin C, Yeung SC. Angiogenesis inhibition in the in vivo antineoplastic effect of manumycin and paclitaxel against anaplastic thyroid carcinoma. J Clin Endocrinol Metab 2001; 86:1769-77. [PMID: 11297616 DOI: 10.1210/jcem.86.4.7374] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Our laboratory has investigated the anticancer effects of combined manumycin (a farnesyltransferase inhibitor) and paclitaxel (a microtubule inhibitor) against anaplastic thyroid carcinoma (ATC). In this study we reported the in vivo efficacy of this combination against ATC cells and the lack of toxicity of this treatment in mice. We observed that manumycin-treated tumors looked paler than both control and paclitaxel-treated tumors. We hypothesized that angiogenesis inhibition mediated part of the in vivo effect of manumycin. This hypothesis was supported by the findings that manumycin significantly inhibited angiogenesis (as directly demonstrated by measurement of hemoglobin content and vascular area) in Matrigel implanted into mice, that manumycin decreased the vascular endothelial growth factor in hypoxic ATC cells, and that both manumycin and paclitaxel inhibited endothelial cell proliferation. Interestingly, inhibition of endothelial tubule formation in Matrigel was enhanced by combining manumycin and paclitaxel. As angiogenesis and tumor growth are continuous processes, we investigated the effect of sustained delivery of manumycin and found that paclitaxel plus slow release manumycin (13.25 mg/kg x week) inhibited ATC xenografts more than paclitaxel plus intermittent manumycin (15 mg/kg x week). In conclusion, manumycin plus paclitaxel is an effective combination against ATC, and inhibition of angiogenesis plays a role in the antineoplastic effect of this combination.
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Affiliation(s)
- G Xu
- Section of Endocrine Neoplasia and Hormonal Disorders, Department of Internal Medicine Specialties, University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA
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24
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Yeung SC, Eton O, Burton DW, Deftos LJ, Vassilopoulou-Sellin R, Gagel RF. Hypercalcemia due to parathyroid hormone-related protein secretion by melanoma. Horm Res 2000; 49:288-91. [PMID: 9623520 DOI: 10.1159/000023188] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
About 1-2% of melanoma patients develop hypercalcemia. We report hypercalcemia without bone metastasis in a 46-year-old woman with advanced melanoma. The hypercalcemia was associated with elevated serum parathyroid hormone-related protein (PTHrP) levels. An even higher concentration (10 times the serum level) in pleural effusion caused by pleural metastases implied that the source of the increased circulating PTHrP was the melanoma. Immunohistochemical staining of paraffin sections, performed using a monoclonal antibody (9H7) against the peptide sequence 109-141 of human PTHrP, detected PTHrP in the cytoplasm and nucleoli of melanoma cells in an autopsy specimen but not in specimens from this patient prior to onset of hypercalcemia. Considering the evidence, it is very likely that PTHrP production by melanoma caused hypercalcemia in this patient.
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Affiliation(s)
- S C Yeung
- Division of Endocrinology, Department of Medicine, Baylor College of Medicine, Houston, Tex, USA
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25
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Yeung SC. HIV infection and periodontal disease. Ann R Australas Coll Dent Surg 2000; 15:331-4. [PMID: 11709967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Human Immunodeficiency Virus (HIV) has profoundly affected the clinical practice of dentistry since the early 1980s. Acute lesions such as linear gingival erythema (LGE) and necrotizing ulcerative periodontitis (NUP) were described as HIV-related oral lesions. The behaviour of chronic gingivitis and periodontitis as well as other practice-related issues are discussed in this paper.
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Yeung SC, Xu G, Pan J, Christgen M, Bamiagis A. Manumycin enhances the cytotoxic effect of paclitaxel on anaplastic thyroid carcinoma cells. Cancer Res 2000; 60:650-6. [PMID: 10676649] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Despite the current multimodal approach to treatment of anaplastic thyroid cancer (ATC), the prognosis for patients with the disease is poor. New effective therapy for ATC is desperately needed. Thus, we investigated the effects of manumycin (a farnesyl:protein transferase inhibitor), alone and in combination with other drugs frequently used to treat ATC, in six human ATC cell lines: ARO, C643, DRO, Hth-74, KAT-4, and KAT-18. By means of a formazan dye-based spectrophotometric assay of cell viability and light microscopy, manumycin was shown to decrease the number of viable cells in all six of the cell lines though to a lesser degree in DRO and C643 cells than in ARO, Hth-74, KAT-4, and KAT-18 cells. In combination, manumycin enhanced the effect of paclitaxel in all six of the cell lines. The mechanism of cell death was investigated by measuring caspase-3 activity, immunoblotting with anti-poly-(ADP-ribose)polymerase (PARP) antibody and electrophoresis of DNA. After an 18-h incubation, manumycin plus paclitaxel caused enhanced activation of caspase-3 activity, cleavage of PARP into Mr 89,000 and 28,000 fragments, and internucleosomal fragmentation of DNA (all of which are characteristic of apoptotic cell death). In contrast, neither manumycin alone, paclitaxel alone, doxorubicin alone, nor doxorubicin plus manumycin produced significant specific cleavage of PARP and internucleosomal DNA fragmentation after 18 h of incubation. The in vivo effect and toxicity of combined manumycin and paclitaxel treatments were evaluated in a nude mouse xenograft model using ARO and KAT-4 cells. Drugs were injected i.p. on days 1 and 3 of a 7-day cycle for three cycles. Both manumycin (7.5 mg/kg/dose) and paclitaxel (20 mg/kg/dose) had significant inhibitory effects on tumor growth. Combined manumycin and paclitaxel treatments seemed as effective as manumycin against ARO cells and more effective than either manumycin or paclitaxel alone against KAT-4 cells. No significant morbidity or mortality was caused by the treatments. In conclusion, manumycin can inhibit the growth of ATC both in vitro and in vivo. Manumycin plus paclitaxel has enhanced cytotoxic effects and increased apoptotic cell death in ATC cells in vitro compared with either drug by itself. The combination of manumycin and paclitaxel is also effective in vivo with no significant toxicity observed. The lack of synergy observed in this in vivo experiment may be due to a ceiling effect, and further experimentation is warranted to ascertain the optimal way to combine these two agents for maximal therapeutic effects.
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Affiliation(s)
- S C Yeung
- Section of General Internal Medicine, M.D. Anderson Cancer Center, University of Texas, Houston 77030, USA.
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27
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Liao W, Yeung SC, Chan L. Proteasome-mediated degradation of apolipoprotein B targets both nascent peptides cotranslationally before translocation and full-length apolipoprotein B after translocation into the endoplasmic reticulum. J Biol Chem 1998; 273:27225-30. [PMID: 9765244 DOI: 10.1074/jbc.273.42.27225] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.1] [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] [Indexed: 11/06/2022] Open
Abstract
A major portion of newly synthesized apolipoprotein B (apoB) is degraded intracellularly. This degradation has been demonstrated to be mediated largely by the ubiquitin-proteasome pathway. We examined whether nascent apoB polypeptides or full-length apoB is selectively retrotranslocated from the endoplasmic reticulum into the cytosol for degradation. Herein, we found that full-length apoB as well as partial-length apoB peptides are ubiquitinated in HepG2 cells, and ubiquitination is an exclusively cytosolic process. Calnexin, which binds specifically to glycoproteins, has been postulated to promote apoB folding and complete translocation; we found that ubiquitinated apoB is bound to calnexin, suggesting that ubiquitinated apoB is glycosylated. In addition to calnexin binding, we have other pieces of evidence that the full-length intracellular ubiquitinated apoB is glycosylated, because (i) it binds to concanavalin A, and (ii) glycan can be demonstrated in the full-length ubiquitinated apoB by a chemical detection method involving oxidation of adjacent hydroxyl groups in the glycan moiety. Because glycosylation occurs inside the endoplasmic reticulum, the full-length glycosylated apoB must have been retrotranslocated into the cytosol for ubiquitination and proteasome-mediated degradation. Next we synchronized translation in HepG2 cells by puromycin treatment. A pulse-chase experiment using [35S]methionine labeling of intracellular apoB in these synchronized cells demonstrated that nascent partial-length apoB peptides are also ubiquitinated cotranslationally. We conclude that the ubiquitin proteasome-mediated degradation of apoB targets both nascent peptides cotranslationally before translocation as well as full-length apoB after its translocation into the endoplasmic reticulum.
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Affiliation(s)
- W Liao
- Departments of Medicine and Cell Biology, Division of Endocrinology, Baylor College of Medicine, Houston, Texas 77030, USA
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28
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Affiliation(s)
- S C Yeung
- Joint Baylor College of Medicine-The University of Texas M. D. Anderson Cancer Center Endocrinology Fellowship Program, Houston 77030, USA
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29
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Yeung SC, Anderson J, Kobayashi K, Oka K, Chan L. Production of rabbit polyclonal antibody against apobec-1 by genetic immunization. J Lipid Res 1997; 38:2627-32. [PMID: 9458285] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Circulating apolipoprotein B (apoB) exists in two forms; apoB-100 and apoB-48. ApoB-48 is a truncated form of apoB resulting from RNA editing. The editing enzyme, called apobec-1, converts a cytidine (C) at nucleotide 6666 in apoB 100 mRNA to a uridine (U) and changes a CAA codon to an in-frame stop codon, UAA. We have produced a specific rabbit polyclonal antiserum against apobec-1 by genetic immunization. The cDNA of mouse apobec-1 was inserted downstream and in-frame at the BamH I site in the last exon of human growth hormone cDNA driven by a cytomegalovirus promoter. This plasmid was injected together with another plasmid expressing granulocyte macrophage colony-stimulating factor into the thigh muscles of a rabbit. The resulting antiserum demonstrated high specificity on Western blots, and inhibited the apoB mRNA editing activity of mouse liver extract in a dose-dependent manner. This report demonstrates that DNA immunization is a powerful technique that can be readily applied to other sparse or difficult-to-purify proteins in lipid metabolism.
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Affiliation(s)
- S C Yeung
- Department of Cell Biology, Baylor College of Medicine, Houston, TX 77030, USA
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30
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Abstract
We administered potassium iodide and propylthiouracil per rectum, in conjunction with intravenous dexamethasone and propranolol, for emergent treatment of a patient in thyroid storm with small bowel obstruction. Shortly after initiation of this treatment, the patient successfully underwent two emergent surgical procedures for resection of an intestinal volvulus with advanced peritonitis. Serum levels of iodide and propylthiouracil showed substantial absorption of these drugs via the rectal route. Measurement of 24-h urinary-free iodide indicated that the bioavailability of potassium iodide delivered by retention enema was at least 40%. Parenteral iodide preparations have been unavailable in the past, and continue to be difficult to obtain emergently. Rectal administration of inorganic iodide is an effective, readily available and less expensive alternative to parenteral sodium iodide for patients in thyroid storm with upper gastrointestinal tract dysfunction.
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Affiliation(s)
- S C Yeung
- Division of Endocrinology, Baylor College of Medicine, Houston, Texas 77030, USA
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31
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Raju U, Nunez-Regueiro M, Cook R, Kaetzel MA, Yeung SC, Eskin A. Identification of an annexin-like protein and its possible role in the Aplysia eye circadian system. J Neurochem 1993; 61:1236-45. [PMID: 8376982 DOI: 10.1111/j.1471-4159.1993.tb13614.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [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] [Indexed: 01/30/2023]
Abstract
Light and serotonin regulate the phase of the circadian rhythm of the isolated eye of Aplysia. To screen for possible protein components of the eye circadian oscillator, we identified a number of proteins whose synthesis was altered in opposite ways by light and serotonin. The cellular function of one of these proteins was investigated by obtaining a partial amino acid sequence of it and by examining its immunoreactivity. A 38-amino acid sequence was obtained from a 40-kDa (isoelectric point 5.6) protein. A greater than 60% amino acid identity existed between this sequence and sequences of a family of calcium/phospholipid-binding proteins called annexins. Furthermore, the 40-kDa protein reacted with antibodies generated against a conserved amino acid sequence of annexins and with antibodies raised against human annexin I. The identification of the 40-kDa, light- and serotonin-regulated protein as an annexin led us to hypothesize that arachidonic acid metabolism plays a role in the Aplysia eye circadian system. To test this hypothesis, we examined the ability of an inhibitor of the arachidonic acid metabolic pathway to perturb the eye rhythm. Pulse treatments of isolated eyes with a lipoxygenase inhibitor, nordihydroguaiaretic acid, phase shifted the rhythm. The phase-shifting ability of nordihydroguaiaretic acid suggests that arachidonic acid and some of its metabolites may play a role in the eye circadian system. The results of our studies raise the possibility that links may exist between the 40-kDa annexin-like protein, arachidonic acid metabolism, and the circadian oscillator.
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Affiliation(s)
- U Raju
- Department of Biochemical and Biophysical Sciences, University of Houston, TX 77204-5934
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32
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Abstract
Data from cross-sectional studies suggest that periodontitis in HIV-infected patients is a more destructive form of disease in contrast to the slowly progressing form of adult periodontitis in the general population. We studied prospectively over an 18-month period 30 HIV infected, but asymptomatic, patients and compared the rate of periodontal attachment loss with that of a healthy control group (n = 10) matched for age and plaque index. Every 6 months, each subject was assessed for their clinical status by a physician and CD4+ cell count determined. The proliferative response of peripheral blood lymphocytes was determined by in vitro cultures with PHA and Con A. The periodontal health status was assessed by scoring with plaque index (PI), gingival index (GI), and periodontal disease index (PDI). The control subjects were assessed for periodontal status only. Of the 30 HIV-positive patients whose data were analyzed 14 received Zidovudine (AZT) while the remaining 16 did not. There was no correlation between any clinical parameter measured and periodontal status as determined by PI or GI. However, a significant difference in the change of periodontal disease index (PDI) was observed between the HIV-infected and control groups (P = 0.005). We concluded that HIV-infected patients with pre-existing periodontitis tend to experience a greater rate of attachment loss over time compared with controls.
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Affiliation(s)
- S C Yeung
- Department of Preventive Dentistry, University of Sydney, Westmead Hospital, Australia
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33
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Yeung SC, Kazazi F, Randle CG, Howard RC, Rizvi N, Downie JC, Donovan BJ, Cooper DA, Sekine H, Dwyer DE. Patients infected with human immunodeficiency virus type 1 have low levels of virus in saliva even in the presence of periodontal disease. J Infect Dis 1993; 167:803-9. [PMID: 8450244 DOI: 10.1093/infdis/167.4.803] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
In two consecutive studies, 80 subjects human immunodeficiency virus (HIV)-1-seropositive (21 asymptomatic, 6 persistent generalized lymphadenopathy, 13 AIDS-related complex, and 40 AIDS) were examined for oral lesions. Paired serum and saliva specimens were tested for HIV isolation, DNA, and antigen. HIV antigen was detected in sera from 31 patients, but not in saliva. HIV was isolated from blood mononuclear cells of 83% and saliva supernatants of 21%. In the second study of 25 patients, HIV was detected in plasma of 56% (titers, 1/10 to > 1/1000) but not in diluted saliva supernatants, even in those with severe periodontal disease. HIV DNA was detected using polymerase chain reaction in 2 of 7 saliva cell pellets and 4 of 5 blood samples. Hence, infectious HIV and DNA was found at very low concentrations in 21% and 28% of HIV-seropositive patients, respectively, at all stages of HIV infection.
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Affiliation(s)
- S C Yeung
- Department of Virology, Westmead Hospital, Australia
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Abstract
The gingival and periodontal health of 62 adolescent orthodontic patients was assessed before and again after orthodontic treatment in a controlled clinical study. Before the commencement of orthodontic treatment, the experimental group received an oral hygiene program consisting of 4 weekly sessions of oral health education, instruction on plaque-control techniques and reviews in plaque removal performance. The control group did not receive this program. It was found that there was a general trend in the study population for improved gingival health as measured by the bleeding index, gingival index, plaque index and gingival crevicular fluid volume. Furthermore, the oral hygiene program induced in the experimental group significantly lower scores in the measured clinical indices compared to the control group. However, no significant difference was noted in the measured probing depths in all subjects before or after the study period.
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Affiliation(s)
- S C Yeung
- Dental Clinical School, Westmead Hospital, Australia
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35
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Yeung SC. Shortness of breath and right upper quadrant pain. Semin Roentgenol 1986; 21:5-6. [PMID: 2937149 DOI: 10.1016/0037-198x(86)90004-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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36
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Levine RB, Yeung SC, Ruttenberg N. Submucosal colonic edema--urticaria of the colon. Am J Gastroenterol 1985; 80:227-31. [PMID: 3976640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Radiographically, colonic urticaria presents a non-specific pattern of submucosal edema. Previously unreported diverticulitis with colonic distention resulting in the flat, polygonal, mosaic pattern typical of this entity is described.
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Yeung SC, Juorio AV. The effects of estradiol and progesterone on the concentration of striatal dopamine and tyramine in ovariectomized mice. Gen Pharmacol 1985; 16:517-9. [PMID: 4054576 DOI: 10.1016/0306-3623(85)90015-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The concentration of homovanillic acid and p-tyramine in the female corpus striatum were increased after ovariectomy. The increases were reversed by chronic administration of estradiol benzoate and potentiated by progesterone. It is proposed that these changes are the consequence of concomitant variations in p-tyrosine availability.
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38
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Yeung SC, Park C, Kramer N. Diaphragmatic herniation of the liver in a newborn demonstrated by liver scan. Clin Nucl Med 1984; 9:729. [PMID: 6509850 DOI: 10.1097/00003072-198412000-00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Abstract
Previously unrecognized insolation variations on Mars are a consequence of periodic variations in eccentricity, first established by the theory of Brouwer and Van Woerkom (1950). Such annual insolation variations, characterized by both 95,000-year and 2,000,000-year periodicities, may actually be recorded in newly discovered layered deposits in the polar regions of Mars. An additional north-south variation in seasonal insolation, but not average annual insolation, exists with 51,000-year and 2,000,000-year periodicities.
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