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Yu M, Qin K, Fan J, Zhao G, Zhao P, Zeng W, Chen C, Wang A, Wang Y, Zhong J, Zhu Y, Wagstaff W, Haydon RC, Luu HH, Ho S, Lee MJ, Strelzow J, Reid RR, He TC. The evolving roles of Wnt signaling in stem cell proliferation and differentiation, the development of human diseases, and therapeutic opportunities. Genes Dis 2024; 11:101026. [PMID: 38292186 PMCID: PMC10825312 DOI: 10.1016/j.gendis.2023.04.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 03/18/2023] [Accepted: 04/12/2023] [Indexed: 02/01/2024] Open
Abstract
The evolutionarily conserved Wnt signaling pathway plays a central role in development and adult tissue homeostasis across species. Wnt proteins are secreted, lipid-modified signaling molecules that activate the canonical (β-catenin dependent) and non-canonical (β-catenin independent) Wnt signaling pathways. Cellular behaviors such as proliferation, differentiation, maturation, and proper body-axis specification are carried out by the canonical pathway, which is the best characterized of the known Wnt signaling paths. Wnt signaling has emerged as an important factor in stem cell biology and is known to affect the self-renewal of stem cells in various tissues. This includes but is not limited to embryonic, hematopoietic, mesenchymal, gut, neural, and epidermal stem cells. Wnt signaling has also been implicated in tumor cells that exhibit stem cell-like properties. Wnt signaling is crucial for bone formation and presents a potential target for the development of therapeutics for bone disorders. Not surprisingly, aberrant Wnt signaling is also associated with a wide variety of diseases, including cancer. Mutations of Wnt pathway members in cancer can lead to unchecked cell proliferation, epithelial-mesenchymal transition, and metastasis. Altogether, advances in the understanding of dysregulated Wnt signaling in disease have paved the way for the development of novel therapeutics that target components of the Wnt pathway. Beginning with a brief overview of the mechanisms of canonical and non-canonical Wnt, this review aims to summarize the current knowledge of Wnt signaling in stem cells, aberrations to the Wnt pathway associated with diseases, and novel therapeutics targeting the Wnt pathway in preclinical and clinical studies.
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Affiliation(s)
- Michael Yu
- School of Medicine, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60064, USA
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Kevin Qin
- School of Medicine, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60064, USA
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Jiaming Fan
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, The School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Guozhi Zhao
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Piao Zhao
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Wei Zeng
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Department of Neurology, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, Guangdong 523475, China
| | - Connie Chen
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Annie Wang
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Yonghui Wang
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Department of Clinical Laboratory Medicine, Shanghai Jiaotong University School of Medicine, Shanghai 200000, China
| | - Jiamin Zhong
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, The School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yi Zhu
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Department of Orthopaedic Surgery, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - William Wagstaff
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Rex C. Haydon
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Hue H. Luu
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Sherwin Ho
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Michael J. Lee
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Jason Strelzow
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Russell R. Reid
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Laboratory of Craniofacial Suture Biology and Development, Department of Surgery Section of Plastic Surgery, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Laboratory of Craniofacial Suture Biology and Development, Department of Surgery Section of Plastic Surgery, The University of Chicago Medical Center, Chicago, IL 60637, USA
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Johnson CT, Batbold A, Benson D, Herman M, Lee MJ, Ramos E, El Dafrawy M. Civilian Ballistic Injuries to the Atlantoaxial Spine: A Single Institution Case Series. Clin Spine Surg 2024:01933606-990000000-00291. [PMID: 38637934 DOI: 10.1097/bsd.0000000000001627] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/28/2024] [Indexed: 04/20/2024]
Abstract
STUDY DESIGN Retrospective case series. OBJECTIVE Describe the injury characteristics of ballistic fractures involving the atlantoaxial spine. SUMMARY OF BACKGROUND DATA Civilian gunshot wounds to the spine are an increasingly common injury in the United States. Civilian studies have focused on ballistic injuries to the entire spine as opposed to a region-specific fashion. Only a single 10-patient case series investigating ballistic fractures to the upper cervical spine (C1 and C2) exists, leaving a large gap in the understanding of this injury complex. METHODS A retrospective chart review was performed. Extracted data included patient demographics, neurological status on presentation, fracture morphology, assessment of stability, other associated injuries, and surgical procedures performed. Proportional analysis was performed to characterize the fractures and their associated neurological injuries. RESULTS Thirty-six patients were identified, with 86% being male with an average patient age of 30.0 ± 10.36 years (mean ± SD). Fracture morphology was characterized using proportional analysis. Initial neurological exams were either ASIA A or ASIA E, without any incomplete injuries noted. Patients who sustained a transcanal injury did not show any neurological improvement. The initial in-hospital mortality rate was 5.6%, with a 1-year mortality rate of 8.3%. There is a high incidence of associated vascular injury (66%) and mandible fracture (33%). CONCLUSIONS Ballistic penetrating trauma to the atlantoaxial spine often results in complex injury patterns necessitating multidisciplinary care with high rates of morbidity and mortality. If neurological deficits are present initially, they are often complete. Two thirds of patients sustained an associated vascular injury, which should be screened for with CT angiography.
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Affiliation(s)
| | | | - Dillon Benson
- Departments of Orthopaedic Surgery and Rehabilitation
| | - Martin Herman
- Neurological Surgery, University of Chicago, Chicago, IL
| | - Michael J Lee
- Departments of Orthopaedic Surgery and Rehabilitation
| | - Edwin Ramos
- Departments of Orthopaedic Surgery and Rehabilitation
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Keenan RA, Nic An Riogh AU, Brennan D, Morrin M, Lee MJ, Davis NF, Ferede AA, Little DM. Lean body mass in living kidney donors impacts postoperative renal function. World J Urol 2024; 42:214. [PMID: 38581460 PMCID: PMC10998768 DOI: 10.1007/s00345-024-04908-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/26/2024] [Indexed: 04/08/2024] Open
Abstract
PURPOSE A living donor kidney transplant is the optimal treatment for chronic renal impairment. Our objective is to assess if lean skeletal muscle mass and donor factors such as body mass index, hypertension, and age impact on renal function following donor nephrectomy. METHODS Potential donors undergo CT angiography as part of their work-up in our institution. Using dedicated software (Horos®), standardized skeletal muscle area measured at the L3 vertebrae was calculated. When corrected for height, skeletal muscle index can be derived. Skeletal muscle mass index below predefined levels was classified as sarcopenic. The correlation of CT-derived skeletal muscle index and postoperative renal function at 12 months was assessed. Co-variables including donor gender, age, body mass index (BMI), and presence of pre-op hypertension were also assessed for their impact on postoperative renal function. RESULTS 275 patients who underwent living donor nephrectomy over 10 years were included. Baseline pre-donation glomerular filtration rate (GFR) and renal function at one year post-op were similar between genders. 29% (n = 82) of patients met the criteria for CT-derived sarcopenia. Sarcopenic patients were more likely to have a higher GFR at one year post-op (69.3 vs 63.9 mL/min/1.73 m2, p < 0.001). The main factors impacting better renal function at one year were the presence of sarcopenia and younger age at donation. CONCLUSION When selecting donors, this study highlights that patients with low skeletal mass are unlikely to underperform in terms of recovery of their renal function postoperatively at one year when compared to patients with normal muscle mass and should not be a barrier to kidney donation.
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Affiliation(s)
- Robert A Keenan
- Department of Surgical Affairs, Royal College of Surgeons, Dublin, Ireland.
- National Kidney Transplant Service, Beaumont Hospital, Dublin, Ireland.
| | - Aisling U Nic An Riogh
- Department of Surgical Affairs, Royal College of Surgeons, Dublin, Ireland
- National Kidney Transplant Service, Beaumont Hospital, Dublin, Ireland
| | - David Brennan
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - Martina Morrin
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - Michael J Lee
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - Niall F Davis
- Department of Surgical Affairs, Royal College of Surgeons, Dublin, Ireland
- National Kidney Transplant Service, Beaumont Hospital, Dublin, Ireland
| | - Atakelet A Ferede
- National Kidney Transplant Service, Beaumont Hospital, Dublin, Ireland
| | - Dilly M Little
- National Kidney Transplant Service, Beaumont Hospital, Dublin, Ireland
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Lee MJ. Time for IR to Change the Paradigm of Failure. Cardiovasc Intervent Radiol 2024; 47:527-528. [PMID: 38509338 DOI: 10.1007/s00270-024-03684-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 03/22/2024]
Affiliation(s)
- Michael J Lee
- Imaging and Interventional Radiology, Beaumont Hospital and Royal College of Surgeons in Ireland, St Stephens Green, Dublin 2, Ireland.
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Flynn MJ, Harper NW, Li R, Zhu LJ, Lee MJ, Benanti JA. Calcineurin promotes adaptation to chronic stress through two distinct mechanisms. bioRxiv 2024:2024.03.19.585797. [PMID: 38562881 PMCID: PMC10983906 DOI: 10.1101/2024.03.19.585797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Adaptation to environmental stress requires coordination between stress-defense programs and cell cycle progression. The immediate response to many stressors has been well characterized, but how cells survive in challenging environments long-term is unknown. Here, we investigate the role of the stress-activated phosphatase calcineurin (CN) in adaptation to chronic CaCl2 stress in Saccharomyces cerevisiae. We find that prolonged exposure to CaCl2 impairs mitochondrial function and demonstrate that cells respond to this stressor using two CN-dependent mechanisms - one that requires the downstream transcription factor Crz1 and another that is Crz1-independent. Our data indicate that CN maintains cellular fitness by promoting cell cycle progression and preventing CaCl2-induced cell death. When Crz1 is present, transient CN activation suppresses cell death and promotes adaptation despite high levels of mitochondrial loss. However, in the absence of Crz1, prolonged activation of CN prevents mitochondrial loss and further cell death by upregulating glutathione (GSH) biosynthesis genes thereby mitigating damage from reactive oxygen species. These findings illustrate how cells maintain long-term fitness during chronic stress and suggest that CN promotes adaptation in challenging environments by multiple mechanisms.
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Affiliation(s)
- Mackenzie J Flynn
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605
- Interdisciplinary Graduate Program, Morningside Graduate School of Biomedical Sciences, University of Massachusetts Chan Medical School, Worcester, MA 01605
| | - Nicholas W Harper
- Interdisciplinary Graduate Program, Morningside Graduate School of Biomedical Sciences, University of Massachusetts Chan Medical School, Worcester, MA 01605
- Department of Systems Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605
| | - Rui Li
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605
| | - Lihua Julie Zhu
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605
- Department of Genomics and Computational Biology, University of Massachusetts Chan Medical School, Worcester MA 01605
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester MA 01605
| | - Michael J Lee
- Department of Systems Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605
| | - Jennifer A Benanti
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605
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Honeywell ME, Isidor MS, Harper NW, Fontana RE, Birdsall GA, Cruz-Gordillo P, Porto SA, Jerome M, Fraser CS, Sarosiek KA, Guertin DA, Spinelli JB, Lee MJ. Functional genomic screens with death rate analyses reveal mechanisms of drug action. Nat Chem Biol 2024:10.1038/s41589-024-01584-7. [PMID: 38480981 DOI: 10.1038/s41589-024-01584-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 02/20/2024] [Indexed: 03/22/2024]
Abstract
A common approach for understanding how drugs induce their therapeutic effects is to identify the genetic determinants of drug sensitivity. Because 'chemo-genetic profiles' are performed in a pooled format, inference of gene function is subject to several confounding influences related to variation in growth rates between clones. In this study, we developed Method for Evaluating Death Using a Simulation-assisted Approach (MEDUSA), which uses time-resolved measurements, along with model-driven constraints, to reveal the combination of growth and death rates that generated the observed drug response. MEDUSA is uniquely effective at identifying death regulatory genes. We apply MEDUSA to characterize DNA damage-induced lethality in the presence and absence of p53. Loss of p53 switches the mechanism of DNA damage-induced death from apoptosis to a non-apoptotic death that requires high respiration. These findings demonstrate the utility of MEDUSA both for determining the genetic dependencies of lethality and for revealing opportunities to potentiate chemo-efficacy in a cancer-specific manner.
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Affiliation(s)
- Megan E Honeywell
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Marie S Isidor
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, USA
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Nicholas W Harper
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Rachel E Fontana
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Gavin A Birdsall
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Peter Cruz-Gordillo
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Sydney A Porto
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, USA
| | - Madison Jerome
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, USA
| | - Cameron S Fraser
- John B. Little Center for Radiation Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Kristopher A Sarosiek
- John B. Little Center for Radiation Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - David A Guertin
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, USA
| | - Jessica B Spinelli
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, USA
| | - Michael J Lee
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, USA.
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, USA.
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Khan Z, Challand CP, Lee MJ. Management of acute colonic pseudo-obstruction: opportunities to improve care? Ann R Coll Surg Engl 2024. [PMID: 38445579 DOI: 10.1308/rcsann.2024.0017] [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: 03/07/2024] Open
Abstract
BACKGROUND Acute colonic pseudo-obstruction (ACPO) is a functional bowel obstruction characterised by colonic dilatation in the absence of mechanical obstruction on imaging. Complications include bowel ischaemia, perforation and death. The aim of this study was to explore outcomes for patients treated for ACPO and to assess adherence to current ACPO treatment guidelines. METHODS This is a retrospective service evaluation and included patients with a diagnosis of ACPO between 1 March 2018 and 31 March 2023. Process measures were identified following discussion with the clinical team from published guidance. Patients were identified using clinical coding and radiological text reports. Cases were eligible for inclusion if they had radiologically confirmed ACPO. Data were collected following review of patient notes into Microsoft Excel. Descriptive analysis was performed with no formal statistical assessment. RESULTS A total of 45 patients were identified, of whom 13 were admitted under general surgery. All patients received admission bloods (n=45). Nearly all patients had computed tomography imaging (43/45, 96%). Only 3/45 (6.7%) of the patients received optimal conservative management (intravenous infusion, nil by mouth, flatus tube, treatment of reversible causes). In all, 11/45 (24%) required further treatment, of whom 7 received this within 72 h. The leading (11/45) complication following diagnosis of ACPO was hospital-acquired pneumonia. Mortality was seen in 9/45. CONCLUSIONS ACPO is often managed remotely by general surgeons. This may impact on the quality of conservative management, and timeliness of endoscopic or pharmacological intervention. Further work is needed to optimise management.
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Affiliation(s)
- Z Khan
- University of Sheffield, UK
- Sheffield Teaching Hospitals, UK
| | | | - M J Lee
- University of Sheffield, UK
- Sheffield Teaching Hospitals, UK
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Rogava M, Aprati TJ, Chi WY, Melms JC, Hug C, Davis SH, Earlie EM, Chung C, Deshmukh SK, Wu S, Sledge G, Tang S, Ho P, Amin AD, Caprio L, Gurjao C, Tagore S, Ngo B, Lee MJ, Zanetti G, Wang Y, Chen S, Ge W, Melo LMN, Allies G, Rösler J, Gibney GT, Schmitz OJ, Sykes M, Creusot RJ, Tüting T, Schadendorf D, Röcken M, Eigentler TK, Molotkov A, Mintz A, Bakhoum SF, Beyaz S, Cantley LC, Sorger PK, Meckelmann SW, Tasdogan A, Liu D, Laughney AM, Izar B. Loss of Pip4k2c confers liver-metastatic organotropism through insulin-dependent PI3K-AKT pathway activation. Nat Cancer 2024; 5:433-447. [PMID: 38286827 DOI: 10.1038/s43018-023-00704-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 12/08/2023] [Indexed: 01/31/2024]
Abstract
Liver metastasis (LM) confers poor survival and therapy resistance across cancer types, but the mechanisms of liver-metastatic organotropism remain unknown. Here, through in vivo CRISPR-Cas9 screens, we found that Pip4k2c loss conferred LM but had no impact on lung metastasis or primary tumor growth. Pip4k2c-deficient cells were hypersensitized to insulin-mediated PI3K/AKT signaling and exploited the insulin-rich liver milieu for organ-specific metastasis. We observed concordant changes in PIP4K2C expression and distinct metabolic changes in 3,511 patient melanomas, including primary tumors, LMs and lung metastases. We found that systemic PI3K inhibition exacerbated LM burden in mice injected with Pip4k2c-deficient cancer cells through host-mediated increase in hepatic insulin levels; however, this circuit could be broken by concurrent administration of an SGLT2 inhibitor or feeding of a ketogenic diet. Thus, this work demonstrates a rare example of metastatic organotropism through co-optation of physiological metabolic cues and proposes therapeutic avenues to counteract these mechanisms.
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Affiliation(s)
- Meri Rogava
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Tyler J Aprati
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Wei-Yu Chi
- Department of Physiology, Biophysics, and Systems Biology, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
| | - Johannes C Melms
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Clemens Hug
- Laboratory for Systems Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Stephanie H Davis
- Laboratory for Systems Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Ethan M Earlie
- Department of Physiology, Biophysics, and Systems Biology, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- Tri-Institutional Training Program in Computational Biology and Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Charlie Chung
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | | | - Sharon Wu
- Caris Life Sciences, Phoenix, AZ, USA
| | | | - Stephen Tang
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Patricia Ho
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Amit Dipak Amin
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Lindsay Caprio
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Carino Gurjao
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
- Program for Mathematical Genomics, Department of Systems Biology, Columbia University, New York, NY, USA
| | - Somnath Tagore
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Program for Mathematical Genomics, Department of Systems Biology, Columbia University, New York, NY, USA
| | - Bryan Ngo
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Michael J Lee
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA
| | - Giorgia Zanetti
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Yiping Wang
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
- Program for Mathematical Genomics, Department of Systems Biology, Columbia University, New York, NY, USA
| | - Sean Chen
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - William Ge
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Luiza Martins Nascentes Melo
- Department for Dermatology, Venerology and Allergology, University Hospital Essen, NCT West, Campus Essen, German Cancer Consortium, Partner Site Essen & University Alliance Ruhr, Research Center One Health, Essen, Germany
| | - Gabriele Allies
- Department for Dermatology, Venerology and Allergology, University Hospital Essen, NCT West, Campus Essen, German Cancer Consortium, Partner Site Essen & University Alliance Ruhr, Research Center One Health, Essen, Germany
| | - Jonas Rösler
- Department for Dermatology, Venerology and Allergology, University Hospital Essen, NCT West, Campus Essen, German Cancer Consortium, Partner Site Essen & University Alliance Ruhr, Research Center One Health, Essen, Germany
| | - Goeffrey T Gibney
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
| | - Oliver J Schmitz
- Applied Analytical Chemistry, University of Duisburg-Essen, Essen, Germany
| | - Megan Sykes
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Rémi J Creusot
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Thomas Tüting
- Laboratory for Experimental Dermatology, Department of Dermatology, University of Magdeburg, Magdeburg, Germany
| | - Dirk Schadendorf
- Department for Dermatology, Venerology and Allergology, University Hospital Essen, NCT West, Campus Essen, German Cancer Consortium, Partner Site Essen & University Alliance Ruhr, Research Center One Health, Essen, Germany
| | - Martin Röcken
- Department of Dermatology, University Hospital Tuebingen, Tuebingen, Germany
| | - Thomas K Eigentler
- Department of Dermatology, Venerology and Allergology, Charité University Hospital, Berlin, Germany
| | - Andrei Molotkov
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Samuel F Bakhoum
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Semir Beyaz
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | | | - Peter K Sorger
- Laboratory for Systems Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Sven W Meckelmann
- Applied Analytical Chemistry, University of Duisburg-Essen, Essen, Germany
| | - Alpaslan Tasdogan
- Department for Dermatology, Venerology and Allergology, University Hospital Essen, NCT West, Campus Essen, German Cancer Consortium, Partner Site Essen & University Alliance Ruhr, Research Center One Health, Essen, Germany
| | - David Liu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Ashley M Laughney
- Department of Physiology, Biophysics, and Systems Biology, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
| | - Benjamin Izar
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos School of Physicians and Surgeons, New York, NY, USA.
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA.
- Program for Mathematical Genomics, Department of Systems Biology, Columbia University, New York, NY, USA.
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9
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Briody H, Kearns CA, Lee MJ. Mortality, Safety, and Effectiveness of Paclitaxel-Containing Balloons and Stents in the Femoropopliteal Artery: Systematic Review and Meta-Analysis of Randomized Controlled Trials since 2018. J Vasc Interv Radiol 2024:S1051-0443(24)00198-2. [PMID: 38428483 DOI: 10.1016/j.jvir.2023.12.574] [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] [Received: 07/12/2023] [Revised: 11/18/2023] [Accepted: 12/09/2023] [Indexed: 03/03/2024] Open
Abstract
PURPOSE To provide an updated systematic review and meta-analysis of safety and effectiveness outcomes with paclitaxel-containing devices. MATERIALS AND METHODS A systematic review and meta-analysis of randomized controlled trials (RCTs) investigating paclitaxel-containing balloons or stents in the treatment of femoropopliteal disease was performed. Pooled risk ratio (RR) was calculated using the inverse-variance, random-effects model in the assessment of primary patency, all-cause mortality, target limb major amputation, target lesion revascularization (TLR), and thrombosis. RESULTS In total, 19 RCTs were included comprising 4,284 participants. All-cause mortality rates did not differ significantly between the 2 arms at 12 months (RR, 1.06; 95% confidence interval [CI], 0.66-1.72; P = .80), 24 months (RR, 0.92; 95% CI, 0.56-1.50; P = .73), 36 months (RR, 1.21; 95% CI, 0.65-2.25; P = .55), or 48-60 months (RR, 0.95; 95% CI, 0.66-1.39; P = .81) after intervention. Primary patency was significantly higher at 12 months in the paclitaxel-containing arm: 80.92% (1,438/1,777) versus 57.48% (607/1,056) in the control arm (RR, 1.44; 95% CI, 1.30-1.59; P < .00001). CONCLUSIONS The present study demonstrates no statistically significant difference in all-cause mortality, target limb major amputation, or thrombosis with paclitaxel drug-eluting therapy to the femoropopliteal region. Additionally, improved and durable patency rates with a statistically significantly lower risk of clinically driven TLR with paclitaxel drug-eluting therapy have been demonstrated.
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Affiliation(s)
- Hayley Briody
- Department of Radiology, Beaumont Hospital, Dublin, Ireland.
| | | | - Michael J Lee
- Department of Radiology, Beaumont Hospital, Dublin, Ireland; Royal College of Surgeons in Ireland, Dublin, Ireland
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10
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Hernandez-Ono A, Zhao YP, Murray JW, Östlund C, Lee MJ, Shi A, Dauer WT, Worman HJ, Ginsberg HN, Shin JY. Dynamic regulation of hepatic lipid metabolism by torsinA and its activators. JCI Insight 2024; 9:e175328. [PMID: 38194265 DOI: 10.1172/jci.insight.175328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/21/2023] [Indexed: 01/10/2024] Open
Abstract
Depletion of torsinA from hepatocytes leads to reduced liver triglyceride secretion and marked hepatic steatosis. TorsinA is an atypical ATPase that lacks intrinsic activity unless it is bound to its activator, lamina-associated polypeptide 1 (LAP1) or luminal domain-like LAP1 (LULL1). We previously demonstrated that depletion of LAP1 from hepatocytes has more modest effects on liver triglyceride secretion and steatosis development than depletion of torsinA. We now show that depletion of LULL1 alone does not significantly decrease triglyceride secretion or cause steatosis. However, simultaneous depletion of both LAP1 and LULL1 leads to defective triglyceride secretion and marked steatosis similar to that observed with depletion of torsinA. Depletion of both LAP1 and torsinA from hepatocytes generated phenotypes similar to those observed with only torsinA depletion, implying that the 2 proteins act in the same pathway in liver lipid metabolism. Our results demonstrate that torsinA and its activators dynamically regulate hepatic lipid metabolism.
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Affiliation(s)
| | | | - John W Murray
- Department of Medicine
- Columbia Center for Human Development, and
| | - Cecilia Östlund
- Department of Medicine
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Michael J Lee
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Angsi Shi
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York, USA
| | - William T Dauer
- Peter O'Donnell Jr. Brain Institute
- Department of Neurology, and
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Howard J Worman
- Department of Medicine
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York, USA
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11
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Desai N, Kudose S, Remotti HE, Del Portillo A, Fazlollahi L, Lee MJ, Xiong Y, Moreira RK, Salomao M, Fiel MI, Gonzalez RS, Misdraji J, Gill RM, Hart J, Kleiner DE, Drebber U, Bellizzi AM, Lagana SM. Erythrophagocytosis is not a reproducible finding in liver biopsies, and is not associated with clinical diagnosis of hemophagocytic lymphohistiocytosis. Virchows Arch 2024; 484:61-69. [PMID: 37924345 DOI: 10.1007/s00428-023-03683-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/12/2023] [Accepted: 10/20/2023] [Indexed: 11/06/2023]
Abstract
Hemophagocytic lymphohistiocytosis (HLH) is a rare disease with high mortality. Liver involvement is common (based on elevated liver function tests) with most patients demonstrating acute hepatitis. Liver biopsies are frequently obtained in the setting of suspected HLH for the purpose of identification of erythrophagocytosis, and if present, this finding is thought to suggest or support the diagnosis of HLH. However, there are problems with this approach; in particular, we do not know whether this finding is reproducible or whether it is specific to HLH. Therefore, we conducted a multi-institutional study in which experienced liver pathologists reviewed images taken from liver biopsies from patients with normal liver, acute hepatitis, possible HLH, and clinical HLH to determine if there was agreement about the presence or absence of erythrophagocytosis, and to ascertain whether the finding corresponds to a clinical diagnosis of HLH. Twelve liver pathologists reviewed 141 images in isolation (i.e., no clinical information or diagnosis provided). These came from 32 patients (five normal, 17 acute hepatitis, six HLH, four possible HLH). The pathologists classified each image as negative, equivocal, or positive for erythrophagocytosis. Kappa was .08 (no agreement) for case-level and 0.1 for image-level (1.4% agreement, based on two images which were universally considered negative). There was no difference in the proportion of pathologists who diagnosed erythrophagocytosis among those with different diagnoses at case or image-level (p = 0.82 and p = 0.82, respectively). Thus, erythrophagocytosis is an entirely unreliable histologic parameter in liver, as it is irreproducible and not demonstrably associated with a clinical disease (namely, HLH). Unless and until more reliable guidelines can be established, pathologists should refrain from commenting on the presence or absence of erythrophagocytosis in liver biopsy.
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Affiliation(s)
- Niyati Desai
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 622 W 168th St.VC14-209A, New York, NY, 10032, USA
| | - Satoru Kudose
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 622 W 168th St.VC14-209A, New York, NY, 10032, USA
| | - Helen E Remotti
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 622 W 168th St.VC14-209A, New York, NY, 10032, USA
| | - Armando Del Portillo
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 622 W 168th St.VC14-209A, New York, NY, 10032, USA
| | - Ladan Fazlollahi
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 622 W 168th St.VC14-209A, New York, NY, 10032, USA
| | - Michael J Lee
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 622 W 168th St.VC14-209A, New York, NY, 10032, USA
| | - Yuqing Xiong
- Department of Pathology, Mass General Brigham, Boston, MA, USA
| | - Roger K Moreira
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - Maria Isabel Fiel
- Department of Pathology, Mount Sinai School of Medicine, New York, NY, USA
| | - Raul S Gonzalez
- Department of Pathology and Laboratory Medicine, Emory University Hospital, Atlanta, USA
| | | | - Ryan M Gill
- Department of Pathology, University of California, San Francisco, San Francisco, USA
| | - John Hart
- Department of Pathology, University of Chicago, Chicago, USA
| | - David E Kleiner
- Laboratory of Pathology, National Cancer Institute, Bethesda, USA
| | - Uta Drebber
- Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | | | - Stephen M Lagana
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, 622 W 168th St.VC14-209A, New York, NY, 10032, USA.
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12
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Lee MJ, Adam A. The Impact of the US IR/DR Primary Certificate on the Global Recognition of IR. J Vasc Interv Radiol 2023; 34:2085-2086. [PMID: 38008544 DOI: 10.1016/j.jvir.2023.08.009] [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] [Received: 04/10/2023] [Accepted: 08/12/2023] [Indexed: 11/28/2023] Open
Affiliation(s)
- Michael J Lee
- Department of Imaging and Interventional Radiology, Beaumont Hospital and Royal College of Surgeons Medical School, Dublin, Ireland.
| | - Andreas Adam
- Department of Interventional Radiology, King's College, London, England
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13
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Dixon SJ, Lee MJ. Quick tips for interpreting cell death experiments. Nat Cell Biol 2023; 25:1720-1723. [PMID: 37985871 DOI: 10.1038/s41556-023-01288-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Affiliation(s)
- Scott J Dixon
- Department of Biology, Stanford University, Stanford, CA, USA.
| | - Michael J Lee
- Department of Systems Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA.
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14
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Lee MJ, DiCarlo JJ. How well do rudimentary plasticity rules predict adult visual object learning? PLoS Comput Biol 2023; 19:e1011713. [PMID: 38079444 PMCID: PMC10754461 DOI: 10.1371/journal.pcbi.1011713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 12/28/2023] [Accepted: 11/27/2023] [Indexed: 12/29/2023] Open
Abstract
A core problem in visual object learning is using a finite number of images of a new object to accurately identify that object in future, novel images. One longstanding, conceptual hypothesis asserts that this core problem is solved by adult brains through two connected mechanisms: 1) the re-representation of incoming retinal images as points in a fixed, multidimensional neural space, and 2) the optimization of linear decision boundaries in that space, via simple plasticity rules applied to a single downstream layer. Though this scheme is biologically plausible, the extent to which it explains learning behavior in humans has been unclear-in part because of a historical lack of image-computable models of the putative neural space, and in part because of a lack of measurements of human learning behaviors in difficult, naturalistic settings. Here, we addressed these gaps by 1) drawing from contemporary, image-computable models of the primate ventral visual stream to create a large set of testable learning models (n = 2,408 models), and 2) using online psychophysics to measure human learning trajectories over a varied set of tasks involving novel 3D objects (n = 371,000 trials), which we then used to develop (and publicly release) empirical benchmarks for comparing learning models to humans. We evaluated each learning model on these benchmarks, and found those based on deep, high-level representations from neural networks were surprisingly aligned with human behavior. While no tested model explained the entirety of replicable human behavior, these results establish that rudimentary plasticity rules, when combined with appropriate visual representations, have high explanatory power in predicting human behavior with respect to this core object learning problem.
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Affiliation(s)
- Michael J. Lee
- Department of Brain and Cognitive Sciences, MIT, Cambridge, Massachusetts, United States of America
- Center for Brains, Minds and Machines, MIT, Cambridge, Massachusetts, United States of America
| | - James J. DiCarlo
- Department of Brain and Cognitive Sciences, MIT, Cambridge, Massachusetts, United States of America
- Center for Brains, Minds and Machines, MIT, Cambridge, Massachusetts, United States of America
- McGovern Institute for Brain Research, MIT, Cambridge, Massachusetts, United States of America
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15
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Lee RJ, Herlihy D, O'Neill DC, Madden-Doyle L, Morrin M, Lee MJ. CT imaging for occult malignancy in patients with unprovoked venous thromboembolism (VTE) in a tertiary centre: is it worthwhile? Ir J Med Sci 2023; 192:3081-3086. [PMID: 36849651 PMCID: PMC10692257 DOI: 10.1007/s11845-023-03317-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 02/13/2023] [Indexed: 03/01/2023]
Abstract
BACKGROUND Investigating patients with unprovoked venous thromboembolism (uVTE) for occult malignancy can prove a diagnostic dilemma and imaging is often used extensively in this patient group. AIMS The primary objective of this study was to determine the incidence of malignancy on CT and other imaging over a 10-year period. A secondary objective was to evaluate the role of laboratory and other non-imaging tests performed. METHODS A retrospective key word search of our hospital's imaging system was performed to identify patients with unprovoked DVT/PE over the last 10 years. All imaging, histology, endoscopy, laboratory tests, and clinical follow-up over 2 years were analysed. Patients with provoked VTE were excluded. RESULTS 150 patients had uVTE. 9 patients were diagnosed with occult malignancy by different investigations on index hospital admission (3 patients) or subsequently on clinical follow-up (6 patients). Mean age of patients was 62 years. 116 patients had CT body imaging. The incidence of malignancy diagnosed by initial CT imaging was 1.7% with a sensitivity of 22%, specificity 87%, and PPV 12.5%. Overall incidence of malignancy identified by imaging alone during the index hospital admission was 2%. Total incidence of malignancy including index admission and follow-up was 6%. Median time to cancer diagnosis was 12 months. CONCLUSION CT imaging had a low yield for diagnosing malignancy. Extensive imaging strategies increase cost and radiation exposure without improving mortality. Clinical follow-up, history taking, and physical examination guiding appropriate investigations remain the best tool for unmasking occult malignancy in patients with uVTE.
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Affiliation(s)
- Ronan J Lee
- Beaumont Hospital, Beaumont Road, Dublin 9, Dublin, Ireland.
| | | | | | | | - Martina Morrin
- Beaumont Hospital, Beaumont Road, Dublin 9, Dublin, Ireland
| | - Michael J Lee
- Beaumont Hospital, Beaumont Road, Dublin 9, Dublin, Ireland
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16
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Leylek O, Honeywell ME, Lee MJ, Hemann MT, Ozcan G. Functional genomics reveals an off-target dependency of drug synergy in gastric cancer therapy. bioRxiv 2023:2023.10.07.561351. [PMID: 37873383 PMCID: PMC10592690 DOI: 10.1101/2023.10.07.561351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
The rational combination of anticancer agents is critical to improving patient outcomes in cancer. Nonetheless, most combination regimens in the clinic result from empirical methodologies disregarding insight into the mechanism of action and missing the opportunity to improve therapy outcomes incrementally. Deciphering the genetic dependencies and vulnerabilities responsible for synergistic interactions is crucial for rationally developing effective anticancer drug combinations. Hence, we screened pairwise pharmacological interactions between molecular-targeted agents and conventional chemotherapeutics and examined the genome-scale genetic dependencies in gastric adenocarcinoma cell models. Since this type of cancer is mainly chemoresistant and incurable, clinical situations demand effective combination strategies. Our pairwise combination screen revealed SN38/erlotinib as the drug pair with the most robust synergism. Genome-wide CRISPR screening and a shRNA-based signature assay indicated that the genetic dependency/vulnerability signature of SN38/erlotinib is the same as SN38 alone. Additional investigation revealed that the enhanced cell death with improved death kinetics caused by the SN38/erlotinib combination is surprisingly due to erlotinib's off-target effect that inhibits ABCG2 but not its on-target effect on EGFR. Our results confirm that a genetic dependency signature different from the single-drug application may not be necessary for the synergistic interaction of molecular-targeted agents with conventional chemotherapeutics in gastric adenocarcinoma. The findings also demonstrated the efficacy of functional genomics approaches in unveiling biologically validated mechanisms of pharmacological interactions.
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Affiliation(s)
- Ozen Leylek
- Koç University Research Center for Translational Medicine, Istanbul, 34450 Turkiye
| | - Megan E Honeywell
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, 01605 USA
| | - Michael J Lee
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, 01605 USA
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, 01605 USA
| | - Michael T Hemann
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, 02139 USA
- MIT Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139 USA
- Broad Institute of MIT and Harvard, Cambridge, MA, 02139 USA
| | - Gulnihal Ozcan
- Koç University Research Center for Translational Medicine, Istanbul, 34450 Turkiye
- Department of Medical Pharmacology, Koç University School of Medicine, Istanbul, 34450 Turkiye
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17
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Jung Y, Lee SH, Lee MJ. Development of reference material for quality control of uranium analysis in marine sediments. Appl Radiat Isot 2023; 200:110979. [PMID: 37586247 DOI: 10.1016/j.apradiso.2023.110979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/28/2023] [Accepted: 08/10/2023] [Indexed: 08/18/2023]
Abstract
Environmental radioactivity monitoring is strengthening due to public concerns over radioactive contamination since the Fukushima nuclear power plant accident. Therefore, various research laboratories, institutes, and universities have been conducting environmental radioactivity surveys around nuclear power plants (NPPs). However, the reliability of the results continues to trigger controversy in society. This study was conducted to develop reference material (RM) for the quality control of 238U and 234U analyses in marine sediments. The RM was prepared according to ISO Guides 31, 34, and 35. A homogeneity test of the marine sediment RM was implemented by analyzing two batch samples from ten bottles using multiple acid digestion and alkali fusion, respectively. We found that the 238U and 234U reference values of the RM were 43.0 ± 1.7 Bq kg-1(k=1) and 41.5 ± 1.9 Bq kg-1(k=1), respectively. This marine sediment RM will be useful for the quality control of analytical methods for similar samples and proficiency tests.
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Affiliation(s)
- Y Jung
- Environmental Radioactivity Safety Team, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - S H Lee
- Environmental Radioactivity Safety Team, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea.
| | - M J Lee
- Environmental Radioactivity Safety Team, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
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18
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Lee SH, Jung Y, Lee MJ, Lee CH. Development of metal radioactive liquid reference material for proficiency test. Appl Radiat Isot 2023; 200:110970. [PMID: 37540991 DOI: 10.1016/j.apradiso.2023.110970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/21/2023] [Accepted: 07/31/2023] [Indexed: 08/06/2023]
Abstract
This study developed liquid reference materials containing various metals, to be used for quality assurance of radiation measurements of the most common metallic wastes generated during the operation or decommissioning of nuclear power plants. The liquid reference materials were prepared by assuming the dissolution of stainless-steel using acid and melting of the major metals present in the stainless steel, namely Fe, Ni, Cr, and Mn, along with the standard sources (134Cs, 137Cs, 60Co, 90Sr). The theoretical massic activity of the standard sources added to the samples and the measured reference values of the gamma and beta emitters in the samples were compared, and they showed good agreement within a one-sigma confidence interval (k = 1). Using the developed reference materials, a proficiency test was conducted on three domestic labs, and the results were evaluated using Z-score. While the evaluation results showed good agreement between the reference values and the reported values for 137Cs and 60Co, all participating labs reported lower values than the reference value for 134Cs. For 90Sr, two out of the three labs reported significantly higher values than the reference value. Based on the results of this study, the developed metal radioactive liquid reference material is expected to be registered as certified reference material (CRM) in the future. They will be used as the CRM for measuring and ensuring the quality of radioactive metal waste.
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Affiliation(s)
- S H Lee
- Environmental Radioactivity Safety Team, Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea.
| | - Y Jung
- Environmental Radioactivity Safety Team, Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - M J Lee
- Environmental Radioactivity Safety Team, Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - C H Lee
- Nuclear Decommissioning Research Institute (NDRI), 17 Techno 4-ro, Yuseong-gu, Daejeon, 34013, Republic of Korea
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19
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Jung J, Moon SM, Kim DY, Kim SH, Lee WJ, Heo ST, Park JY, Bae S, Lee MJ, Kim B, Park SY, Jeong HW, Kim Y, Kwak YG, Song KH, Park KH, Park SH, Kim YK, Kim ES, Kim HB. Appropriateness of antibiotic use for patients with asymptomatic bacteriuria or urinary tract infection with positive urine culture: a retrospective observational multi-centre study in Korea. J Hosp Infect 2023; 140:79-86. [PMID: 37562596 DOI: 10.1016/j.jhin.2023.07.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/24/2023] [Accepted: 07/29/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Antibiotic resistance threatens public health worldwide, and inappropriate use of antibiotics is one of the main causes. AIM To evaluate qualitative use of antibiotics in asymptomatic bacteriuria (ABU) and urinary tract infection (UTI). METHODS Cases of positive urine culture (≥105 colony-forning units/mL) performed in inpatient, outpatient and emergency departments in April 2021 were screened in 26 hospitals in the Republic of Korea. The cases were classified as ABU, lower UTI and upper UTI. The appropriateness of antibiotic use was evaluated retrospectively by infectious disease specialists using quality indicators based on clinical guidelines for ABU and UTI. RESULTS This study included a total of 2697 patients with ABU or UTI. The appropriateness of antibiotic use was assessed in 1157 patients with ABU, and in 677 and 863 patients with lower and upper UTI, respectively. Among the 1157 patients with ABU, 251 (22%) were prescribed antibiotics without appropriate indications. In 66 patients with ABU in which antibiotics were prescribed with appropriate indications, the duration was adequate in only 23 (34.8%) patients. The appropriateness of empirical and definite antibiotics was noted in 527 (77.8%) and 353 (68.0%) patients with lower UTI, and 745 (86.3%) and 583 (78.2%) patients with upper UTI, respectively. The duration of antibiotics was adequate in 321 (61.8%) patients with lower UTI and 576 (78.7%) patients with upper UTI. CONCLUSIONS This nationwide qualitative assessment of antibiotic use in ABU and UTI revealed that antibiotics were often prescribed inappropriately, and the duration of antibiotics was unnecessarily prolonged.
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Affiliation(s)
- J Jung
- Division of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - S M Moon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D Y Kim
- Division of Infectious Diseases, Department of Internal Medicine, Kyung Hee University Hospital, Kyung Hee University School of Medicine, Seoul, Republic of Korea
| | - S-H Kim
- Division of Infectious Diseases, Samsung Changwon Hospital, Sungkyunkwan University, Changwon, Republic of Korea
| | - W J Lee
- Department of Internal Medicine, Hallym Hospital, Incheon, Republic of Korea
| | - S T Heo
- Division of Infectious Disease, Department of Internal Medicine, Jeju National University College of Medicine, Jeju, Republic of Korea
| | - J Y Park
- Department of Paediatrics, Chung-Ang University Hospital, Seoul, Republic of Korea
| | - S Bae
- Division of Infectious Diseases, Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - M J Lee
- Department of Internal Medicine, Inje University Sanggye Paik Hospital, Seoul, Republic of Korea
| | - B Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - S Y Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea; Department of Hospital Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea; Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea; Centres for Digital Health, Yongin Severance Hospital, Yonsei University Health System, Yongin, Republic of Korea
| | - H W Jeong
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Republic of Korea; Department of Internal Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Y Kim
- Department of Internal Medicine, Wonkwang University College of Medicine, Iksan, Republic of Korea
| | - Y G Kwak
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Republic of Korea
| | - K-H Song
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - K-H Park
- Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - S H Park
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y K Kim
- Department of Internal Medicine, Wonju College of Medicine, Yonsei University, Wonju, Republic of Korea
| | - E S Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H B Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
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20
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Pacheco RR, Kim H, Choi WT, Kook MC, Cho MY, Karamchandani DM, Lee MJ, Kim BH, Lee SH, Yang Z, Kim J, Lagana SM, Lee H. Unravelling interobserver variability in gastrointestinal glandular neoplasia: a contemporary study of US and Korean pathologists. J Clin Pathol 2023:jcp-2023-209048. [PMID: 37739770 DOI: 10.1136/jcp-2023-209048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/07/2023] [Indexed: 09/24/2023]
Abstract
AIMS Interobserver variability in the assessment of gastric neoplasia biopsies between most Western and Eastern (predominantly represented by Japanese in the literature) pathologists has been documented. It is unknown if such variability exists between the US and Korean pathologists in the current era. METHODS Ten gastrointestinal (GI) pathologists from the USA (n=5) and South Korea (n=5) evaluated 100 scanned images of gastric (n=50) and colorectal (n=50) neoplasia biopsies and answered multiple questionnaires. Consensus was defined as the answer chosen by the majority. Cohen's (κc) and Fleiss' kappa (κf) values were calculated between the consensus of the two groups and among the raters, respectively. RESULTS Both groups reached a consensus in the majority of cases (74%-100%) with slight to perfect intergroup (κc=0.049-1.000) and no to substantial intragroup (κf=-0.083 to 0.660) agreements. For gastric neoplasia, Korean pathologists relied heavily on cytoarchitectural atypia, whereas the US pathologists focused on stromal invasion when diagnosing adenocarcinoma. For colorectal neoplasia, the Korean pathologists identified concurrent intramucosal carcinoma when diagnosing invasive adenocarcinoma, while the presence of desmoplasia was a prerequisite for the diagnosis of invasive adenocarcinoma for the US pathologists. CONCLUSIONS For GI neoplasia biopsy interpretation, the diagnostic approach of Korean pathologists is similar to that of Eastern/Japanese pathologists. Consensus outperformed kappa statistics in capturing the magnitude of inter-rater and intergroup reliability, highlighting the potential benefit of consensus meetings to decrease the gap between Western and Eastern diagnostic approaches.
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Affiliation(s)
- Richard R Pacheco
- Pathology and Laboratory Medicine, Albany Medical Center, Albany, New York, USA
| | - Hyunki Kim
- Pathology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Won-Tak Choi
- Pathology, University of California, San Francisco, California, USA
| | - Myeong-Cherl Kook
- Pathology/Center for Gastric Cancer, National Cancer Center, Goyang, Korea
| | - Mee-Yon Cho
- Department of Pathology, Yonsei University College of Medicine, Wonju, Gangwon-do, Korea
| | - Dipti M Karamchandani
- Department of Pathology, Division of Anatomic Pathology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Michael J Lee
- Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
| | - Baek-Hui Kim
- Pathology, Korea University Guro Hospital, Seoul, Korea
| | - Sung-Hak Lee
- Hospital Pathology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Zhaohai Yang
- Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Jihun Kim
- Department of Pathology, University of Ulsan College of Medicine, Seoul, Korea
| | - Stephen M Lagana
- Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
| | - Hwajeong Lee
- Pathology and Laboratory Medicine, Albany Medical Center, Albany, New York, USA
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21
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Park SY, Moon SM, Kim B, Lee MJ, Song KH, Kim ES, Kim TH, Kim HB. Applicability and limitations of quality indicator-based assessment of appropriateness in antimicrobial use: a comparison with expert opinion. J Hosp Infect 2023; 139:93-98. [PMID: 37419187 DOI: 10.1016/j.jhin.2023.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/06/2023] [Accepted: 06/26/2023] [Indexed: 07/09/2023]
Abstract
BACKGROUND The effective implementation of antimicrobial stewardship requires an a-priori assessment of the appropriateness of antimicrobial prescriptions. AIM To evaluate the effectiveness of quality indicators (QIs) in determining the appropriateness of antimicrobial prescriptions compared to that of expert opinions. METHODS The study assessed antimicrobial use in 20 hospitals in Korea, with infectious disease specialists rating the appropriateness based on QIs and expert opinions. The selected QIs were (1) taking two blood cultures, (2) taking cultures from suspected sites of infection, (3) prescribing empirical antimicrobials according to guidelines, and (4) changing from empirical to pathogen-directed therapy for hospitalized patients and (2, 3, and 4) for ambulatory patients. Applicability, compliance with QIs, and agreement between QIs and expert opinions were investigated. FINDINGS Overall, 7999 therapeutic uses of antimicrobials were investigated at the study hospitals. The experts rated 20.5% (1636/7999) as inappropriate use. For hospitalized patients, antimicrobial use was assessed based on all four QIs in 28.8% (1798/6234) of the cases. For ambulatory care patients, only 7.5% (102/1351) of the antimicrobial use cases were assessed using all three QIs. The agreement between expert opinions and all four QIs for hospitalized patients was minimal (κ = 0.332), whereas that between expert opinions and all three QIs for ambulatory patients was weak (κ = 0.598). CONCLUSION QIs have limitations in determining the appropriateness of antimicrobial use, and the degree of agreement with expert opinions was low. Therefore, these QI limitations should be considered when determining the appropriateness of antimicrobial use.
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Affiliation(s)
- S Y Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea; Centres for Digital Health, Yongin Severance Hospital, Yonsei University Health System, Yongin, South Korea
| | - S M Moon
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - B Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - M J Lee
- Department of Internal Medicine, Inje University Sanggye Paik Hospital, Seoul, South Korea
| | - K-H Song
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - E S Kim
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - T H Kim
- Division of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, South Korea.
| | - H B Kim
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea.
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22
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Lee K, Lee YJ, Lee MJ, Han J, Ryu K, Kwon JA, Kim EJ, Kang H, Kim BH, Kim BJ, Lee SW. Structure-Controlled Carbon Hosts for Dendrite-Free Aqueous Zinc Batteries. Small 2023; 19:e2302334. [PMID: 37127856 DOI: 10.1002/smll.202302334] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/13/2023] [Indexed: 05/03/2023]
Abstract
The surging demand for environmental-friendly and safe electrochemical energy storage systems has driven the development of aqueous zinc (Zn)-ion batteries (ZIBs). However, metallic Zn anodes suffer from severe dendrite growth and large volume change, resulting in a limited lifetime for aqueous ZIB applications. Here, it is shown that 3D mesoporous carbon (MC) with controlled carbon and defect configurations can function as a highly reversible and dendrite-free Zn host, enabling the stable operation of aqueous ZIBs. The MC host has a structure-controlled architecture that contains optimal sp2 -carbon and defect sites, which results in an improved initial nucleation energy barrier and promotes uniform Zn deposition. As a consequence, the MC host shows outstanding Zn plating/stripping performance over 1000 cycles at 2 mA cm-2 and over 250 cycles at 6 mA cm-2 in asymmetric cells. Density functional theory calculations further reveal the role of the defective sp2 -carbon surface in Zn adsorption energy. Moreover, a full cell based on Zn@MC900 anode and V2 O5 cathode exhibits remarkable rate performance and cycling stability over 3500 cycles. These results establish a structure-mechanism-performance relationship of the carbon host as a highly reversible Zn anode for the reliable operation of ZIBs.
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Affiliation(s)
- Kyungbin Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Young Jun Lee
- Carbon Composite Materials Research Center, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea
| | - Michael J Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Junghun Han
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Kun Ryu
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jeong An Kwon
- Computataional Science & Engineering Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Eun Ji Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyewon Kang
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Byung-Hyun Kim
- Computataional Science & Engineering Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Seung Woo Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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23
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Emin MT, Lee MJ, Bhattacharya J, Hough RF. Mitochondria of lung venular capillaries mediate lung-liver cross talk in pneumonia. Am J Physiol Lung Cell Mol Physiol 2023; 325:L277-L287. [PMID: 37431588 PMCID: PMC10625830 DOI: 10.1152/ajplung.00209.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/02/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023] Open
Abstract
Failure of the lung's endothelial barrier underlies lung injury, which causes the high mortality acute respiratory distress syndrome (ARDS). Multiple organ failure predisposes to the mortality, but mechanisms are poorly understood. Here, we show that mitochondrial uncoupling protein 2 (UCP2), a component of the mitochondrial inner membrane, plays a role in the barrier failure. Subsequent lung-liver cross talk mediated by neutrophil activation causes liver congestion. We intranasally instilled lipopolysaccharide (LPS). Then, we viewed the lung endothelium by real-time confocal imaging of the isolated, blood-perfused mouse lung. LPS caused alveolar-capillary transfer of reactive oxygen species and mitochondrial depolarization in lung venular capillaries. The mitochondrial depolarization was inhibited by transfection of alveolar Catalase and vascular knockdown of UCP2. LPS instillation caused lung injury as indicated by increases in bronchoalveolar lavage (BAL) protein content and extravascular lung water. LPS or Pseudomonas aeruginosa instillation also caused liver congestion, quantified by liver hemoglobin and plasma aspartate aminotransferase (AST) increases. Genetic inhibition of vascular UCP2 prevented both lung injury and liver congestion. Antibody-mediated neutrophil depletion blocked the liver responses, but not lung injury. Knockdown of lung vascular UCP2 mitigated P. aeruginosa-induced mortality. Together, these data suggest a mechanism in which bacterial pneumonia induces oxidative signaling to lung venular capillaries, known sites of inflammatory signaling in the lung microvasculature, depolarizing venular mitochondria. Successive activation of neutrophils induces liver congestion. We conclude that oxidant-induced UCP2 expression in lung venular capillaries causes a mechanistic sequence leading to liver congestion and mortality. Lung vascular UCP2 may present a therapeutic target in ARDS.NEW & NOTEWORTHY We report that mitochondrial injury in lung venular capillaries underlies barrier failure in pneumonia, and venular capillary uncoupling protein 2 (UCP2) causes neutrophil-mediated liver congestion. Using in situ imaging, we found that epithelial-endothelial transfer of H2O2 activates UCP2, depolarizing mitochondria in venular capillaries. The conceptual advance from our findings is that mitochondrial depolarization in lung capillaries mediates liver cross talk through circulating neutrophils. Pharmacologic blockade of UCP2 could be a therapeutic strategy for lung injury.
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Affiliation(s)
- Memet T Emin
- Department of Pediatrics, Pediatric Critical Care and Hospital Medicine, Columbia University Irving Medical Center, New York, New York, United States
| | - Michael J Lee
- Department of Pathology and Cell Biology, Columbia University, New York, New York, United States
| | - Jahar Bhattacharya
- Lung Biology Laboratory, Pulmonary Division, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, New York, United States
| | - Rebecca F Hough
- Department of Pediatrics, Pediatric Critical Care and Hospital Medicine, Columbia University Irving Medical Center, New York, New York, United States
- Lung Biology Laboratory, Pulmonary Division, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, New York, United States
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24
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Sheehan M, O'Brien C, Killick D, Briody H, Reid C, Keeling A, Given M, McGrath A, Lee MJ. An 8-year, single-centre experience of primary image-guided insertion of 'button' gastrostomy catheters: Technical and clinical results. J Med Imaging Radiat Oncol 2023; 67:519-525. [PMID: 36576081 DOI: 10.1111/1754-9485.13501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 12/07/2022] [Indexed: 12/29/2022]
Abstract
INTRODUCTION 'Button' gastrostomy insertion is traditionally a two-step procedure with an initial longer gastrostomy tube inserted followed by placement of the shorter 'button' gastrostomy in 6 weeks when the track is mature. The aim of this study is to assess whether the placement of a Button gastrostomy de novo is a safe and effective method of radiologically inserted gastrostomy (RIG) insertion. METHODS Using our Picture Archive and Communication System (PACS) and electronic patient charts we identified all patients who underwent primary 'button' gastrostomy over an 8-year period with at least a 1-year follow-up period. We evaluated technical success rate, indications for insertion, major and minor complications, 30-day mortality and the number of exchanges performed. RESULTS Overall, 482 patients underwent a primary button RIG insertion during this period with an overall success rate of 97.1%. Indications for RIG insertion included neurological and neurosurgical disorders 236 (48.9%), head and neck malignancy 182 (37.8%), oesophageal malignancy 27 (5.6%) and other indications in 37 (7.7%). The mean age was 59.55 years (range 18-88 years) with 290 men (60.2%) and 192 women (39.8%). Major complications were recorded in 0.8% and minor complications in 1.7%. A 30-day mortality of 1% was identified (five patients), mortality was directly related to the RIG insertion in one patient (0.2%). A total of 65 exchanges/replacements took place over this period of time, with 33 (50.1%) due to 'inadvertent removal'. CONCLUSION Primary button RIG insertion is a procedure that has a high success rate and low morbidity and mortality. We believe it is a safe and effective alternative to deliver enteral nutrition.
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Affiliation(s)
- Mark Sheehan
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
- Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Cormac O'Brien
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
- Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | - Hayley Briody
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - Conor Reid
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - Aoife Keeling
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - Mark Given
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - Andrew McGrath
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - Michael J Lee
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
- Royal College of Surgeons in Ireland, Dublin, Ireland
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25
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Hernandez-Ono A, Zhao YP, Murray JW, Östlund C, Lee MJ, Shi A, Dauer WT, Worman HJ, Ginsberg HN, Shin JY. Functional interaction of torsinA and its activators in liver lipid metabolism. bioRxiv 2023:2023.06.21.545957. [PMID: 37547008 PMCID: PMC10401926 DOI: 10.1101/2023.06.21.545957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
TorsinA is an atypical ATPase that lacks intrinsic activity unless it is bound to its activators lamina-associated polypeptide 1 (LAP1) in the perinuclear space or luminal domain-like LAP1 (LULL1) throughout the endoplasmic reticulum. However, the interaction of torsinA with LAP1 and LULL1 has not yet been shown to modulate a defined physiological process in mammals in vivo . We previously demonstrated that depletion of torsinA from mouse hepatocytes leads to reduced liver triglyceride secretion and marked steatosis, whereas depletion of LAP1 had more modest similar effects. We now show that depletion of LULL1 alone does not significantly decrease liver triglyceride secretion or cause steatosis. However, simultaneous depletion of both LAP1 and LULL1 from hepatocytes leads to defective triglyceride secretion and marked steatosis similar to that observed with depletion of torsinA. Our results demonstrate that torsinA and its activators dynamically regulate a physiological process in mammals in vivo .
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26
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Guest RL, Lee MJ, Wang W, Silhavy TJ. A periplasmic phospholipase that maintains outer membrane lipid asymmetry in Pseudomonas aeruginosa. Proc Natl Acad Sci U S A 2023; 120:e2302546120. [PMID: 37463202 PMCID: PMC10374164 DOI: 10.1073/pnas.2302546120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/17/2023] [Indexed: 07/20/2023] Open
Abstract
The outer membrane of Gram-negative bacteria is unique in both structure and function. The surface-exposed outer leaflet is composed of lipopolysaccharide, while the inner leaflet is composed of glycerophospholipids. This lipid asymmetry creates mechanical strength, lowers membrane permeability, and is necessary for virulence in many pathogens. Glycerophospholipids that mislocalize to the outer leaflet are removed by the Mla pathway, which consists of the outer membrane channel MlaA, the periplasmic lipid carrier MlaC, and the inner membrane transporter MlaBDEF. The opportunistic pathogen Pseudomonas aeruginosa has two proteins of the MlaA family: PA2800 and PA3239. Here, we show that PA2800 is part of a canonical Mla pathway, while PA3239 functions with the putative lipase PA3238. While loss of either pathway individually has little to no effect on outer membrane integrity, loss of both pathways weakens the outer membrane permeability barrier and increases production of the secondary metabolite pyocyanin. We propose that mislocalized glycerophospholipids are removed from the outer leaflet by PA3239 (renamed MlaZ), transferred to PA3238 (renamed MlaY), and degraded. This pathway streamlines recycling of glycerophospholipid degradation products by removing glycerophospholipids from the outer leaflet prior to degradation.
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Affiliation(s)
- Randi L Guest
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | - Michael J Lee
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | - Wei Wang
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544
| | - Thomas J Silhavy
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
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27
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Lee MJ. A review of liver fibrosis and cirrhosis regression. J Pathol Transl Med 2023; 57:189-195. [PMID: 37461143 PMCID: PMC10369136 DOI: 10.4132/jptm.2023.05.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/20/2023] [Accepted: 05/24/2023] [Indexed: 07/30/2023] Open
Abstract
Cirrhosis has traditionally been considered an irreversible process of end-stage liver disease. With new treatments for chronic liver disease, there is regression of fibrosis and cirrhosis, improvement in clinical parameters (i.e. liver function and hemodynamic markers, hepatic venous pressure gradient), and survival rates, demonstrating that fibrosis and fibrolysis are a dynamic process moving in two directions. Microscopically, hepatocytes push into thinning fibrous septa with eventual perforation leaving behind delicate periportal spikes in the portal tracts and loss of portal veins. Obliterated portal veins during progressive fibrosis and cirrhosis due to parenchymal extinction, vascular remodeling and thrombosis often leave behind a bile duct and hepatic artery within the portal tract. Traditional staging classification systems focused on a linear, progressive process; however, the Beijing classification system incorporates both the bidirectional nature for the progression and regression of fibrosis. However, even with regression, vascular lesions/remodeling, parenchymal extinction and a cumulative mutational burden place patients at an increased risk for developing hepatocellular carcinoma and should continue to undergo active clinical surveillance. It is more appropriate to consider cirrhosis as another stage in the evolution of chronic liver disease as a bidirectional process rather than an end-stage, irreversible state.
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Affiliation(s)
- Michael J. Lee
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY, USA
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28
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Yu Y, Zhong J, Chen C, Gou Y, Zhao G, Zhao P, Wang Y, Zeng W, Wang A, Wagstaff WD, Haydon RC, He TC, Reid RR, Lee MJ, Luu HH, Fan J. SV40 large T antigen-induced immortalization reprograms mouse cardiomyocyte progenitors with mesenchymal stem cell characteristics and osteogenic potential. Genes Dis 2023; 10:1161-1164. [PMID: 37397535 PMCID: PMC10311047 DOI: 10.1016/j.gendis.2022.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/23/2022] [Accepted: 10/11/2022] [Indexed: 12/12/2022] Open
Affiliation(s)
- Yichun Yu
- Emergency Department, Beijing Hospital, and The National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100051, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Jiamin Zhong
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the School of Laboratory Diagnostic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Connie Chen
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Yannian Gou
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the School of Laboratory Diagnostic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Guozhi Zhao
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Piao Zhao
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yonghui Wang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Department of Clinical Laboratory Medicine, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Wei Zeng
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Department of Neurology, The Second Affiliated Hospital of Jianghan University, Wuhan, Hubei 430050, China
| | - Annie Wang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - William D. Wagstaff
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Rex C. Haydon
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Laboratory of Craniofacial Suture Biology and Development, Department of Surgery Section of Plastic Surgery, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Russell R. Reid
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Laboratory of Craniofacial Suture Biology and Development, Department of Surgery Section of Plastic Surgery, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Michael J. Lee
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Hue H. Luu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Jiaming Fan
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the School of Laboratory Diagnostic Medicine, Chongqing Medical University, Chongqing 400016, China
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29
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Briody H, Sheehan M, Hanley M, O'Neill B, Dunne R, Lee MJ, Morrin MM. Biochemically recurrent prostate cancer: rationalisation of the approach to imaging. Clin Radiol 2023; 78:518-524. [PMID: 37085338 DOI: 10.1016/j.crad.2023.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 04/09/2023]
Abstract
AIM To assess the utility of magnetic resonance imaging (MRI) in addition to the additive benefit of the conventional imaging techniques, computed tomography (CT) and nuclear medicine (NM) bone scintigraphy, for investigation of biochemical recurrence (BCR) post-prostatectomy where access to prostate specific membrane antigen (PSMA) positron-emission tomography (PET)-CT is challenging. MATERIALS AND METHODS Relevant imaging over a 5-year period was reviewed. Ethical approval was granted by the internal review board. All patients with suspected BCR, defined as a PSA ≥0.2 ng/ml on two separate occasions, underwent a retrospective imaging review. This was performed on PACS archive search database in a single centre using search terms "PSA" and "prostatectomy" in the three imaging methods; MRI, CT, and NM bone scintigraphy. All PSMA PET CT performed were recorded. RESULTS One hundred and eighty-five patients were identified. Patients with an MRI pelvis that demonstrated distant metastases (i.e., pelvic bone metastases or lymph node involvement more cranial to the bifurcation of the common iliac arteries) were more likely to have a positive CT and/or NM bone scintigraphy. The Pearson correlation coefficient between the findings of M1 disease at MRI pelvis and the presence of distant metastases at CT thorax, abdomen, pelvis and NM bone scintigraphy was calculated at 0.81 (p<0.01) and 0.91 (p<0.01) respectively. CONCLUSION An imaging strategy based on risk stratification and technique-specific selection criteria leads to more appropriate use of resources, and in turn, increases the yield of conventional imaging methods. MRI prostate findings can be used to predict the additive value of CT/NM bone scintigraphy allowing a more streamlined approach to their use.
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Affiliation(s)
- H Briody
- Department of Medicine, Beaumont Hospital, Dublin, Ireland.
| | - M Sheehan
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - M Hanley
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - B O'Neill
- Department of Radiation Oncology, Beaumont Hospital, Dublin, Ireland
| | - R Dunne
- Department of Radiology, Beaumont Hospital, Dublin, Ireland
| | - M J Lee
- Department of Radiology, Beaumont Hospital, Dublin, Ireland; Royal College of Surgeons in Ireland, Dublin, Ireland
| | - M M Morrin
- Department of Radiology, Beaumont Hospital, Dublin, Ireland; Royal College of Surgeons in Ireland, Dublin, Ireland
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Lee MJ. A review of liver fibrosis and cirrhosis regression. J Pathol Transl Med 2023:jptm.2022.05.24. [PMID: 37332257 DOI: 10.4132/jptm.2022.05.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/24/2023] [Indexed: 06/20/2023] Open
Abstract
Cirrhosis has traditionally been considered an irreversible process of end-stage liver disease. With new treatments for chronic liver disease, there is regression of fibrosis and cirrhosis, improvement in clinical parameters (i.e. liver function and hemodynamic markers, hepatic venous pressure gradient), and survival rates, demonstrating that fibrosis and fibrolysis are a dynamic process moving in two directions. Microscopically, hepatocytes push into thinning fibrous septa with eventual perforation leaving behind delicate periportal spikes in the portal tracts and loss of portal veins. Obliterated portal veins during progressive fibrosis and cirrhosis due to parenchymal extinction, vascular remodeling and thrombosis often leave behind a bile duct and hepatic artery within the portal tract. Traditional staging classification systems focused on a linear, progressive process; however, the Beijing classification system incorporates both the bidirectional nature for the progression and regression of fibrosis. However, even with regression, vascular lesions/remodeling, parenchymal extinction and a cumulative mutational burden place patients at an increased risk for developing hepatocellular carcinoma and should continue to undergo active clinical surveillance. It is more appropriate to consider cirrhosis as another stage in the evolution of chronic liver disease as a bidirectional process rather than an end-stage, irreversible state.
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Affiliation(s)
- Michael J Lee
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY, USA
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Lee MJ. Interventional Radiology in the Era of Value-Based Healthcare. Cardiovasc Intervent Radiol 2023:10.1007/s00270-023-03473-3. [PMID: 37264290 DOI: 10.1007/s00270-023-03473-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/19/2023] [Indexed: 06/03/2023]
Affiliation(s)
- Michael J Lee
- Emeritus Professor of Imaging and Interventional Radiology, Beaumont Hospital and Royal College of Surgeons in Ireland, Dublin, Ireland.
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Uberoi R, Lee MJ. The CIRSE EBIR Curriculum: The Third Age. Cardiovasc Intervent Radiol 2023:10.1007/s00270-023-03475-1. [PMID: 37264288 DOI: 10.1007/s00270-023-03475-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/03/2023]
Affiliation(s)
- Raman Uberoi
- John Radcliffe Hospital, Oxford University Hospitals, Headley Way, Headington, Oxford, OX3 9DU, England.
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Lee MJ, Folan AM, Baker DM, Blackwell S, Wootton R, Robinson K, Sebastian S, Brown SR, Jones GL, Lobo AJ. A survey of patient informational preferences when choosing between medical and surgical therapy for ulcerative colitis: a sub-study from the DISCUSS project. Colorectal Dis 2023. [PMID: 37237447 DOI: 10.1111/codi.16625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 12/31/2022] [Accepted: 04/01/2023] [Indexed: 05/28/2023]
Abstract
AIM People living with ulcerative colitis (UC) have two broad treatment avenues, namely medical or surgical therapy. The choice between these can depend on patient preference as well as the receipt of relevant information. The aim of this study was to define the informational needs of patients with UC. METHOD A postal survey was designed to capture respondent demographics, treatment experienced within the previous 12 months and informational preferences by rating a long list of items. It was delivered through two hospitals that provide tertiary inflammatory bowel disease services. Descriptive analyses were performed to describe demographics and experiences. Principal component analysis was carried out using a varimax rotation to investigate informational needs. RESULTS A total of 101 responses were returned (20.1% response rate). The median age of respondents was 45 years and the median time since diagnosis was 10 years. Control preferences skewed towards shared (42.6%) or patient-led but clinician-informed (35.6%). Decision regret was low for the population (median 12.5/100, range 0-100). Key informational needs related to medical therapy were benefits and risks of long-term therapy, burden of hospital attendance, reproductive health, need for steroid treatment and impact on personal life. For surgery, these were stoma information, effect on daily life, effect on sexual and reproductive health, risks and benefits and disruption of life due to surgery. CONCLUSION This study has identified key areas for discussion when counselling patients about treatment decisions around medical therapy and surgery for UC.
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Affiliation(s)
- M J Lee
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
- Academic Directorate of General Surgery, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - A M Folan
- Department of Psychology, School of Social Sciences, Leeds Beckett University, Leeds, UK
| | - D M Baker
- Academic Directorate of General Surgery, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | | | - R Wootton
- Academic Directorate of General Surgery, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - K Robinson
- Department of Gastroenterology, Hull and East Yorkshire Hospitals, Hull, UK
| | - S Sebastian
- Sheffield Inflammatory Bowel Disease Centre, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - S R Brown
- Academic Directorate of General Surgery, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - G L Jones
- Department of Psychology, School of Social Sciences, Leeds Beckett University, Leeds, UK
| | - A J Lobo
- Department of Gastroenterology, Hull and East Yorkshire Hospitals, Hull, UK
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Honeywell ME, Isidor MS, Harper NW, Fontana RE, Cruz-Gordillo P, Porto SA, Fraser CS, Sarosiek KA, Guertin DA, Spinelli JB, Lee MJ. p53 controls choice between apoptotic and non-apoptotic death following DNA damage. bioRxiv 2023:2023.01.17.524444. [PMID: 36712034 PMCID: PMC9882237 DOI: 10.1101/2023.01.17.524444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
DNA damage can activate apoptotic and non-apoptotic forms of cell death; however, it remains unclear what features dictate which type of cell death is activated. We report that p53 controls the choice between apoptotic and non-apoptotic death following exposure to DNA damage. In contrast to the conventional model, which suggests that p53-deficient cells should be resistant to DNA damage-induced cell death, we find that p53-deficient cells die at high rates following DNA damage, but exclusively using non-apoptotic mechanisms. Our experimental data and computational modeling reveal that non-apoptotic death in p53-deficient cells has not been observed due to use of assays that are either insensitive to cell death, or that specifically score apoptotic cells. Using functional genetic screening - with an analysis that enables computational inference of the drug-induced death rate - we find in p53-deficient cells that DNA damage activates a mitochondrial respiration-dependent form of cell death, called MPT-driven necrosis. Cells deficient for p53 have high basal respiration, which primes MPT-driven necrosis. Finally, using metabolite profiling, we identified mitochondrial activity-dependent metabolic vulnerabilities that can be targeted to potentiate the lethality of DNA damage specifically in p53-deficient cells. Our findings reveal how the dual functions of p53 in regulating mitochondrial activity and the DNA damage response combine to facilitate the choice between apoptotic and non-apoptotic death.
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Affiliation(s)
- Megan E Honeywell
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, 01605 USA
| | - Marie S Isidor
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, 01605 USA
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Nicholas W Harper
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, 01605 USA
| | - Rachel E Fontana
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, 01605 USA
| | - Peter Cruz-Gordillo
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, 01605 USA
| | - Sydney A Porto
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, 01605 USA
| | - Cameron S Fraser
- John B. Little Center for Radiation Sciences, Harvard TH Chan School of Public Health, Boston, MA, 02115 USA
| | - Kristopher A Sarosiek
- John B. Little Center for Radiation Sciences, Harvard TH Chan School of Public Health, Boston, MA, 02115 USA
| | - David A Guertin
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, 01605 USA
| | - Jessica B Spinelli
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, 01605 USA
| | - Michael J Lee
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, 01605 USA
- Program in Molecular Medicine, UMass Chan Medical School, Worcester, MA, 01605 USA
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O'Connor T, MacKenzie L, Clarke RW, Bradburn M, Wilson TR, Lee MJ. Screening for malnutrition in emergency laparotomy patients: a comparison of three tools. Ann R Coll Surg Engl 2023; 105:413-421. [PMID: 36541125 PMCID: PMC10149256 DOI: 10.1308/rcsann.2022.0077] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
INTRODUCTION Malnourished patients undergoing emergency laparotomy are at risk of significant morbidity. The optimum screening tool to identify such patients in practice and research is yet to be determined. This study aims to compare the performance of three nutrition risk tools in predicting time without enteral nutrition in this population. METHODS A prospective cohort study (NCT04696367) was conducted across two sites, recruiting patients undergoing National Emergency Laparotomy Audit eligible procedures. Data collected included demographics, diagnosis, procedure and outcomes. Nutrition risk was assessed using three tools: Malnutrition Universal Screening Tool (MUST) score, Nutritional Risk Index (NRI) and Nutritional Risk Score 2002 (NRS-2002). Complications were assessed with the Comprehensive Complication Index. Quality of life was measured at baseline and 5 days postsurgery using EQ-5D-5L. RESULTS A total of 59 patients were recruited. Median age was 69 years. Of the 59 participants, 23 were judged high risk using MUST score, 13 using NRS and 8 using NRI. Median time to restart enteral intake was 7 days (interquartile range 7-14). Time without intake was correlated with increasing score using MUST (r=0.463, p<0.001) and NRS-2002 (r=0.296, p=0.03) but not NRI (r=-0.121, p=0.38). High-risk nutritional groups also had increased length of hospital stay, but not complication scores. CONCLUSIONS Patients undergoing emergency laparotomy spend a prolonged time without enteral nutrition. Although all nutritional tools demonstrated some propensity to identify patients at higher risk of needing nutritional support, their performance was variable. Nevertheless, some may be useful in future clinical studies.
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Affiliation(s)
- T O'Connor
- Sheffield Teaching Hospitals NHS Foundation Trust, UK
| | - L MacKenzie
- Sheffield Teaching Hospitals NHS Foundation Trust, UK
| | - R W Clarke
- Doncaster and Bassetlaw Teaching Hospitals NHS Foundation Trust, UK
| | - M Bradburn
- Clinical Trials Research Unit, University of Sheffield, UK
| | - T R Wilson
- Doncaster and Bassetlaw Teaching Hospitals NHS Foundation Trust, UK
| | - M J Lee
- Sheffield Teaching Hospitals NHS Foundation Trust, UK
- The Medical School, University of Sheffield, UK
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Briody H, Duong D, Yeoh SW, Hodgson R, Yong TL, Hannah A, Lee MJ, Leong S, Maingard J, Asadi H, Kok HK. Radioembolization for hepatocellular carcinoma – Current evidence and patterns of utilization. J Vasc Interv Radiol 2023:S1051-0443(23)00254-3. [PMID: 37001638 DOI: 10.1016/j.jvir.2023.03.020] [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] [Received: 10/05/2022] [Revised: 02/16/2023] [Accepted: 03/22/2023] [Indexed: 03/31/2023] Open
Abstract
Primary liver malignancy, of which hepatocellular carcinoma (HCC) is the most common type, is the second most common cause of death due to cancer worldwide. Given the historically poor prognosis of liver cancer, there has been major research on its treatment options, with significant advancements over the last decade. Transarterial radioembolization (TARE) is a locoregional treatment option for HCC that involves transarterial delivery of the β-emitter yttrium-90 via resin or glass microspheres to arterialized tumor vasculature, delivering a tumoricidal dose to the tumor. The recent 2022 update of the Barcelona Clinic Liver Cancer (BCLC) treatment algorithm has featured a more prominent role of locoregional treatment, including the incorporation of radioembolization for very-early-stage (BCLC 0) and early-stage (BCLC A) diseases. This review provides a contemporary summary of the evolving role of TARE in HCC treatment in light of recent and upcoming trials.
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Affiliation(s)
- Hayley Briody
- Interventional Radiology Service, Department of Radiology, Northern Health, Melbourne, Australia. https://twitter.com/BriodyHayley
| | - David Duong
- Interventional Radiology Service, Department of Radiology, Northern Health, Melbourne, Australia
| | - Sern Wei Yeoh
- Department of Gastroenterology and Hepatology, Northern Health, Melbourne, Australia
| | - Russell Hodgson
- Department of Hepatopancreatobiliary Surgery, Northern Health, Melbourne, Australia
| | - Tuck Leong Yong
- Department of Hepatopancreatobiliary Surgery, Northern Health, Melbourne, Australia
| | - Anthony Hannah
- Department of Nuclear Medicine, Northern Health, Melbourne, Australia
| | - Michael J Lee
- Department of Radiology, Beaumont Hospital and Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Sum Leong
- Department of Vascular and Interventional Radiology, Singapore General Hospital, Singapore
| | - Julian Maingard
- Interventional Radiology Service, Austin Health, Melbourne, Australia; Interventional Radiology Service, St Vincent's Hospital, Melbourne, Australia
| | - Hamed Asadi
- Interventional Radiology Service, Austin Health, Melbourne, Australia; Interventional Radiology Service, St Vincent's Hospital, Melbourne, Australia; Interventional Radiology Service, Monash Health, Melbourne, Australia
| | - Hong Kuan Kok
- Interventional Radiology Service, Department of Radiology, Northern Health, Melbourne, Australia; Interventional Radiology Service, St Vincent's Hospital, Melbourne, Australia.
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O’Connor OM, Burns FA, Proctor VK, Green SK, Sayers AE, Smart NJ, Lee MJ. Clinician preferences in the treatment of acutely symptomatic hernia: the 'MASH' survey. Ann R Coll Surg Engl 2023; 105:225-230. [PMID: 35196151 PMCID: PMC9974343 DOI: 10.1308/rcsann.2021.0304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2021] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION There is limited high-quality evidence to guide the management of acute hernia presentation. The aim of this study was to survey surgeons to assess current trends in assessment, treatment strategy and operative decisions in the management of acutely symptomatic hernia. METHODS A survey was developed with reference to current guidelines, and reported according to Checklist for Reporting Results of Internet E-Surveys guidelines. Ethical approval was obtained from the University of Sheffield (UREC:034047). The survey explored practice in groin, umbilical/paraumbilical and incisional hernia presenting acutely. It captured respondent demographics, and preferences for investigations, treatment strategies and repair techniques for each hernia type, using a five-point Likert scale. RESULTS Some 145 responses were received, of which 39 declared a specialist hernia practice. Essential investigations included urea and electrolytes (58.6%) and inflammatory markers (55.6%). Computed tomography scan of the abdomen was essential for assessment of incisional hernia (90.9%), but not for other hernia types. Bowel compromise drives early surgery, and increasing American Society of Anesthesiology score pushes towards non-operative management. Type of repair was driven by hernia contents, with increasing contamination associated with increased rates of suture repair. Where mesh was proposed in contaminated settings, biological types were preferred. There was variation in the potential use of laparoscopy for groin hernia. CONCLUSIONS This survey provides a snapshot of current trends in the management of acutely symptomatic hernia. It demonstrates variation across aspects of assessment and repair technique. Additional data are required to inform practice in these areas.
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Affiliation(s)
- OM O’Connor
- Chesterfield Royal Hospital NHS Foundation Trust, UK
| | - FA Burns
- North Cumbria Integrated Care NHS Foundation Trust, UK
| | - VK Proctor
- Doncaster and Bassetlaw Teaching Hospitals NHS Foundation Trust, UK
| | - SK Green
- York and Scarborough Teaching Hospitals NHS Foundation Trust, UK
| | - AE Sayers
- Sheffield Teaching Hospitals NHS Foundation Trust, UK
| | - NJ Smart
- Royal Devon and Exeter NHS Foundation Trust, UK
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Rogers MR, Zeng W, Zhang X, Li R, Wei Q, Kong Y, Zhao P, Zhao G, Wang Y, Zhong J, Zhu Y, Haydon RC, Luu HH, Reid RR, Peterson DA, Lee MJ, He TC. Bone Morphogenic Protein 9 (BMP9)/Growth Differentiation Factor 2 (GDF2) modulates mouse adult hippocampal neurogenesis by regulating the survival of early neural progenitors. Genes Dis 2023. [DOI: 10.1016/j.gendis.2023.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
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Yan S, Zhang R, Wu K, Cui J, Huang S, Ji X, An L, Yuan C, Gong C, Zhang L, Liu W, Feng Y, Zhang B, Dai Z, Shen Y, Wang X, Luo W, Liu B, Haydon RC, Lee MJ, Reid RR, Wolf JM, Shi Q, Luu HH, He TC, Weng Y. Corrigendum to “Characterization of the essential role of bone morphogenetic protein 9 (BMP9) in osteogenic differentiation of mesenchymal stem cells (MSCs) through RNA interference” [ 5(2018):172–184]. Genes Dis 2023; 10:632-637. [DOI: 10.1016/j.gendis.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
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Abstract
This invited article reviews the current status of Interventional Radiology (IR), in terms of its status as a speciality, and outlines the conditions needed for IR to function optimally within healthcare settings. Guidance is offered in terms of developing an IR department, ensuring high-quality practice, dealing with administrative and political challenges, dealing with industry and creating a legacy.
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Affiliation(s)
- Adrian P Brady
- 36860Mercy University Hospital and University College Cork, Cork, Ireland
| | - Raman Uberoi
- 6397Oxford University Hospitals Trust, Oxford, UK
| | - Michael J Lee
- 57978Beaumont Hospital and Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | - Andreas Adam
- Professor Emeritus of Interventional Radiology, 405987King's College London, London, UK
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Han J, Lee MJ, Lee K, Lee YJ, Kwon SH, Min JH, Lee E, Lee W, Lee SW, Kim BJ. Role of Bicontinuous Structure in Elastomeric Electrolytes for High-Energy Solid-State Lithium-Metal Batteries. Adv Mater 2023; 35:e2205194. [PMID: 36349804 DOI: 10.1002/adma.202205194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Solid-state lithium (Li)-metal batteries (LMBs) are garnering attention as a next-generation battery technology that can surpass conventional Li-ion batteries in terms of energy density and operational safety under the condition that the issue of uncontrolled Li dendrite is resolved. In this study, various plastic crystal-embedded elastomer electrolytes (PCEEs) are investigated with different phase-separated structures, prepared by systematically adjusting the volume ratio of the phases, to elucidate the structure-property-electrochemical performance relationship of the PCEE in the LMBs. At an optimal volume ratio of elastomer phase to plastic-crystal phase (i.e., 1:1), bicontinuous-structured PCEE, consisting of efficient ion-conducting, plastic-crystal pathways with long-range connectivity within a crosslinked elastomer matrix, exhibits exceptionally high ionic conductivity (≈10-3 S cm-1 ) at 20 °C and excellent mechanical resilience (elongation at break ≈ 300%). A full cell featuring this optimized PCEE, a 35 µm thick Li anode, and a high loading LiNi0.83 Mn0.06 Co0.11 O2 (NMC-83) cathode delivers a high energy density of 437 Wh kganode+cathode+electrolyte -1 . The established structure-property-electrochemical performance relationship of the PCEE for solid-state LMBs is expected to inform the development of the elastomeric electrolytes for various electrochemical energy systems.
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Affiliation(s)
- Junghun Han
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Michael J Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Kyungbin Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Young Jun Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Seung Ho Kwon
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Ju Hong Min
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Eunji Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Wonho Lee
- Department of Polymer Science and Engineering, Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi, 39177, Republic of Korea
| | - Seung Woo Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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Sheahan KP, Tong E, Lee MJ. A review of inferior vena cava filters. Br J Radiol 2023; 96:20211125. [PMID: 35856774 PMCID: PMC10997026 DOI: 10.1259/bjr.20211125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 04/20/2022] [Accepted: 07/16/2022] [Indexed: 11/05/2022] Open
Abstract
The care of patients with venous thromboembolism (VTE) is delivered via a multidisciplinary team. The primary treatment for VTE is anticoagulation; however, placement of filter devices in the inferior vena cava (IVC) to prevent embolisation of deep venous thrombosis (DVT) is a well-established secondary treatment option. Many controversies remain regarding utilisation and management of filters.
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Affiliation(s)
| | - Emma Tong
- Department of Radiology, Beaumont Hospital,
Dublin, Ireland
| | - Michael J. Lee
- Department of Radiology, Beaumont Hospital,
Dublin, Ireland
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Lee JR, Terauds A, Carwardine J, Shaw JD, Fuller RA, Possingham HP, Chown SL, Convey P, Gilbert N, Hughes KA, McIvor E, Robinson SA, Ropert-Coudert Y, Bergstrom DM, Biersma EM, Christian C, Cowan DA, Frenot Y, Jenouvrier S, Kelley L, Lee MJ, Lynch HJ, Njåstad B, Quesada A, Roura RM, Shaw EA, Stanwell-Smith D, Tsujimoto M, Wall DH, Wilmotte A, Chadès I. Threat management priorities for conserving Antarctic biodiversity. PLoS Biol 2022; 20:e3001921. [PMID: 36548240 PMCID: PMC9778584 DOI: 10.1371/journal.pbio.3001921] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/16/2022] [Indexed: 12/24/2022] Open
Abstract
Antarctic terrestrial biodiversity faces multiple threats, from invasive species to climate change. Yet no large-scale assessments of threat management strategies exist. Applying a structured participatory approach, we demonstrate that existing conservation efforts are insufficient in a changing world, estimating that 65% (at best 37%, at worst 97%) of native terrestrial taxa and land-associated seabirds are likely to decline by 2100 under current trajectories. Emperor penguins are identified as the most vulnerable taxon, followed by other seabirds and dry soil nematodes. We find that implementing 10 key threat management strategies in parallel, at an estimated present-day equivalent annual cost of US$23 million, could benefit up to 84% of Antarctic taxa. Climate change is identified as the most pervasive threat to Antarctic biodiversity and influencing global policy to effectively limit climate change is the most beneficial conservation strategy. However, minimising impacts of human activities and improved planning and management of new infrastructure projects are cost-effective and will help to minimise regional threats. Simultaneous global and regional efforts are critical to secure Antarctic biodiversity for future generations.
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Affiliation(s)
- Jasmine R. Lee
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
- CSIRO, Dutton Park, Queensland, Australia
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
- British Antarctic Survey, NERC, High Cross, Cambridge, United Kingdom
- * E-mail:
| | - Aleks Terauds
- Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
| | | | - Justine D. Shaw
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
- Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
| | - Richard A. Fuller
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Hugh P. Possingham
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
- The Nature Conservancy, Arlington, Virginia, United States of America
| | - Steven L. Chown
- Securing Antarctica’s Environmental Future, School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Peter Convey
- British Antarctic Survey, NERC, High Cross, Cambridge, United Kingdom
- Department of Zoology, University of Johannesburg, Johannesburg, South Africa
| | - Neil Gilbert
- Constantia Consulting, Christchurch, New Zealand
| | - Kevin A. Hughes
- British Antarctic Survey, NERC, High Cross, Cambridge, United Kingdom
| | - Ewan McIvor
- Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
| | - Sharon A. Robinson
- Centre for Sustainable Ecosystem Solutions, School of Earth, Atmosphere and Life Sciences and Global Challenges Program, University of Wollongong, Wollongong, New South Wales, Australia
- Securing Antarctica’s Environmental Future, University of Wollongong, Wollongong, New South Wales, Australia
| | - Yan Ropert-Coudert
- Centre d’Etudes Biologiques de Chizé, La Rochelle Université − CNRS, UMR 7372, Villiers en Bois, France
| | - Dana M. Bergstrom
- Australian Antarctic Division, Department of Climate Change, Energy, the Environment and Water, Kingston, Tasmania, Australia
- Department of Zoology, University of Johannesburg, Johannesburg, South Africa
- Centre for Sustainable Ecosystem Solutions, School of Earth, Atmosphere and Life Sciences and Global Challenges Program, University of Wollongong, Wollongong, New South Wales, Australia
| | - Elisabeth M. Biersma
- British Antarctic Survey, NERC, High Cross, Cambridge, United Kingdom
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
| | - Claire Christian
- Antarctic and Southern Ocean Coalition, Washington DC, United States of America
| | - Don A. Cowan
- Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
| | - Yves Frenot
- University of Rennes 1, CNRS, EcoBio (Ecosystèmes, biodiversité, évolution)—UMR 6553, Rennes, France
| | - Stéphanie Jenouvrier
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, United States of America
| | - Lisa Kelley
- International Association of Antarctica Tour Operators (IAATO), South Kingstown, Rhode Island, United States of America
| | | | - Heather J. Lynch
- Department of Ecology and Evolution, Stony Brook University, Stony Brook, New York, United States of America
| | | | - Antonio Quesada
- Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain
| | - Ricardo M. Roura
- Antarctic and Southern Ocean Coalition, Washington DC, United States of America
| | - E. Ashley Shaw
- Institute of Ecology and Evolution, University of Oregon, Eugene, Oregon, United States of America
| | - Damon Stanwell-Smith
- International Association of Antarctica Tour Operators (IAATO), South Kingstown, Rhode Island, United States of America
- Viking Expeditions, Basel, Switzerland
| | - Megumu Tsujimoto
- Faculty of Environment and Information Studies, Keio University, Fujisawa, Kanagawa Japan
- National Institute of Polar Research, Tachikawa, Tokyo, Japan
| | - Diana H. Wall
- Department of Biology and School of Global Environmental Sustainability, Colorado State University, Fort Collins, Colorado, United States of America
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Jung A, Lee MJ, Lee SW, Cho J, Son JG, Yeom B. Phase Separation-Controlled Assembly of Hierarchically Porous Aramid Nanofiber Films for High-speed Lithium-Metal Batteries. Small 2022; 18:e2205355. [PMID: 36333117 DOI: 10.1002/smll.202205355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/12/2022] [Indexed: 06/16/2023]
Abstract
The growth of lithium (Li) dendrites reduces the lifespan of Li-metal batteries and causes safety issues. Herein, hierarchically porous aramid nanofiber separators capable of effectively suppressing the Li dendrite growth while maintaining highly stable cycle performances at high charge/discharge rates are reported. A two-step solvent exchange process combined with reprotonation-mediated self-assembly is utilized to control the bimodal porous structure of the separators. In particular, when ethanol and water are used sequentially, aramid nanofibers form hierarchical porous structures containing nanopores in macroporous polymer frameworks to yield a mechanically robust membrane with high porosity of 97% or more. The optimized samples exhibit high ionic conductivities of 1.87-4.04 mS cm-1 and high Li-ion transference numbers of 0.77-0.84 because of the ultrahigh porosity and selective affinity to anions. Li-metal symmetric cells do not show any noticeable presence of dendrites after 100 cycles, and they operate stably for more than 1500 cycles even under extreme conditions with a high current density of >20 mA cm-2 . In addition, the LiFePO4 /Li full cell retains 86.3% of its capacity after 1000 cycles at a charge rate of 30 C.
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Affiliation(s)
- Arum Jung
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Michael J Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Seung Woo Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jinhan Cho
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Jeong Gon Son
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
- Soft Hybrid Materials Research Center, Korea Institute of Science and Technology (KIST), 5 Hwarangno 14-gil, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Bongjun Yeom
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
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45
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Lee MJ, Lee SH, Jung Y. Development of concrete reference material for quality assurance/quality control of gamma radioactivity measurement for nuclear power plant decommissioning waste. J Environ Radioact 2022; 255:107031. [PMID: 36191508 DOI: 10.1016/j.jenvrad.2022.107031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 08/11/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
The Korea Research Institute of Standards and Science has developed a new concrete reference material (RM) for measuring gamma-emitting radionuclides, such as 134Cs, 137Cs, 65Zn, 241Am, and 60Co, to improve and maintain the quality assurance and quality control of the radioactivity measurement in radioactive waste generated during the decommissioning of nuclear power plants. In this study, cement, SiO2, and bentonite, which are the main components of concrete, were mixed in an appropriate ratio with radionuclides. For certification and homogeneity assessment, 10 bottles were randomly selected, two sub-samples were collected from each bottle, and radionuclides were measured via HPGe gamma spectrometry. The results of the homogeneity tests using a one-way analysis of variance on 241Am, 134Cs, 137Cs, 65Zn, and 60Co in the concrete RM fulfilled the requirements of ISO Guide 35. Coincidence summing and self-absorption correction were performed on measurement results by introducing the Monte Carlo efficiency transfer code and Monte Carlo N-Particle transport code. The reference values for five radionuclides (60Co, 65Zn, 241Am, 134Cs, and 137Cs) in the RM were in the range of 15-40 Bq/kg, and the expanded uncertainty was within 10% (k = 2). To the best of our knowledge, this was the first study to develop concrete RM for measuring gamma-emitting radionuclides.
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Affiliation(s)
- M J Lee
- Korea Research Institute of Standards and Science, Daejeon, 34113, Republic of Korea
| | - S H Lee
- Korea Research Institute of Standards and Science, Daejeon, 34113, Republic of Korea.
| | - Y Jung
- Korea Research Institute of Standards and Science, Daejeon, 34113, Republic of Korea
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46
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Choi SH, Park SD, Lee MJ, Lee KJ. Comparison of trans-radial access and femoral access in cardiogenic shock patient who had undergone primary percutaneous coronary intervention from SMART RESCUE trial. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1246] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Introduction
Throughout the years of percutaneous coronary intervention (PCI), the debate regarding access route, whether it being trasns-radial or femoral, is an ongoing agenda yet to be solved. Recent guidelines suggest trans-radial approach as an option to be considered in acute coronary syndrome (ACS). However, data on cardiogenic shock patients undergoing PCI is relatively sparse.
Purpose
Compare the clinical implication of trans-radial and femoral approach in cardiogenic shock patients who had undergone PCI.
Method
Cardiogenic shock patients who had undergone PCI from January 2014 to December of 2018 were enrolled. Patients were divided according to their access route respectfully. Primary outcome was composite endpoints including all-cause death, re-admission due to heart failure, myocardial infarction (MI) and cerebrovascular accident.
Result
A total of 694 (572 via femoral approach, 122 via radial approach) cardiogenic shock patients who received PCI were enrolled. Mean age femoral and radial groups was 66.59±12.51 and 66.66±12.8 respectfully. Disease severity was higher for femoral patients compared to radial patients as represented by their LM involvement, mechanical organ support (extracorporeal membrane oxygenation, continuous renal replacement therapy, mechanical ventilation), left ventricular ejection fraction (LVEF) and vasoactive inotropic score. Cox regression analysis after adjusting for conventional risk factors showed that femoral route was a poor prognosticator with respect to composite endpoints (HR=2.059, 95% CI 1.249–3.397, p value = 0.005). Radial approach patients had higher survival probability compared to femoral approach patients (Figure 1).
Conclusion
Radial approach in cardiogenic shock patients who are in need for PCI with relatively less severe clinical condition could be a reasonable option for access route.
Funding Acknowledgement
Type of funding sources: Private hospital(s). Main funding source(s): Inha University Hospital
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Affiliation(s)
- S H Choi
- Inha University Hospital, Cardiology , Incheon , Korea (Republic of)
| | - S D Park
- Inha University Hospital, Cardiology , Incheon , Korea (Republic of)
| | - M J Lee
- Inha University Hospital, Critical Care Medicine , Incheon , Korea (Republic of)
| | - K J Lee
- Inha University Hospital, Cardiology , Incheon , Korea (Republic of)
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Choi SH, Park SD, Lee MJ, Ko YG, Yu CW, Chun WJ, Jang WJ, Kim HJ, Bae JW, Kwon SU, Kim JS, Lee WS, Jeong JO, Lim SH, Yang JH. Prognostic impact of plasma glucose on cardiogenic shock patients with or without diabetes ellitus: smart rescue trial. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1442] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Even though the presence of hyperglycemia has shown to affect the clinical outcome of cardiogenic shock patients, the extent of hyperglycemia and its association with prognosis have not been fully addressed in large population
Purpose
Investigate the clinical relationship between hyperglycemic status and in-hospital mortality in cardiogenic shock patients
Method
A total of 1,177 consecutive cardiogenic shock patients were enrolled from January 2014 to December of 2018 at 12 hospitals in South Korea. The primary outcome was in-hospital mortality. Patients were divided into four groups according to their initial plasma glucose level in each of diabetes patients (n=752) and non-diabetes patients (n=425); group 1 (≤8 mmol/L), group 2 (8–12 mmol/L), group 3 (12–16 mmol/L) and group 4 (≥16 mmol/L).
Results
The groups with higher admission plasma glucose were associated with lower systolic blood pressure and higher lactic acid level in both diabetic and non-diabetic patients. In-hospital mortality increased in groups with higher admission plasma glucose level in non-diabetic patients (group-1:24.2%, group-2: 28.6%, group-3: 38.1%, group-4: 49.0%, p<0.01) whereas in diabetic patients, mortality and admission plasma glucose level showed no significant association (group-1: 45%, group-2: 35.4%, group-3: 33.3%, group-4: 43.1%, p=0.26). Even after Multivariate analysis, high plasma glucose was an independent predictor of in-hospital mortality in non-diabetic patients
Conclusion
In cardiogenic shock patients, plasma glucose obtained at admission was associated with in-hospital mortality in non-diabetic patients
Funding Acknowledgement
Type of funding sources: Private hospital(s). Main funding source(s): Inha University hospital
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Affiliation(s)
- S H Choi
- Inha University Hospital, Cardiology , Incheon , Korea (Republic of)
| | - S D Park
- Inha University Hospital, Cardiology , Incheon , Korea (Republic of)
| | - M J Lee
- Inha University Hospital, Cardiology , Incheon , Korea (Republic of)
| | - Y G Ko
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Cardiology , Seoul , Korea (Republic of)
| | - C W Yu
- Korea University Anam Hospital, Cardiology , Seoul , Korea (Republic of)
| | - W J Chun
- Samsung Changwon Hospital, Cardiology , Changwon , Korea (Republic of)
| | - W J Jang
- Ewha Womans University Seoul Hospital, Cardiology , Seoul , Korea (Republic of)
| | - H J Kim
- Konkuk University Hospital, Cardiology , Seoul , Korea (Republic of)
| | - J W Bae
- Chungbuk National University College of Medicine, Cardiology , Cheongju , Korea (Republic of)
| | - S U Kwon
- Inje University Ilsan Paik hospital, Cardiology , Goyang , Korea (Republic of)
| | - J S Kim
- Sejong General Hospital, Cardiology , Bucheon , Korea (Republic of)
| | - W S Lee
- Chung-Ang University Hospital, Cardiology , Seoul , Korea (Republic of)
| | - J O Jeong
- Chungnam National University hospital , Daejeon , Korea (Republic of)
| | - S H Lim
- Dankook University, Cardiology , Cheonan-si , Korea (Republic of)
| | - J H Yang
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
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Leighow SM, Landry B, Lee MJ, Peyton SR, Pritchard JR. Agent-Based Models Help Interpret Patterns of Clinical Drug Resistance by Contextualizing Competition Between Distinct Drug Failure Modes. Cell Mol Bioeng 2022; 15:521-533. [PMID: 36444351 PMCID: PMC9700548 DOI: 10.1007/s12195-022-00748-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 10/26/2022] [Indexed: 11/16/2022] Open
Abstract
Introduction Modern targeted cancer therapies are carefully crafted small molecules. These exquisite technologies exhibit an astonishing diversity of observed failure modes (drug resistance mechanisms) in the clinic. This diversity is surprising because back of the envelope calculations and classic modeling results in evolutionary dynamics suggest that the diversity in the modes of clinical drug resistance should be considerably smaller than what is observed. These same calculations suggest that the outgrowth of strong pre-existing genetic resistance mutations within a tumor should be ubiquitous. Yet, clinically relevant drug resistance occurs in the absence of obvious resistance conferring genetic alterations. Quantitatively, understanding the underlying biological mechanisms of failure mode diversity may improve the next generation of targeted anticancer therapies. It also provides insights into how intratumoral heterogeneity might shape interpatient diversity during clinical relapse. Materials and Methods We employed spatial agent-based models to explore regimes where spatial constraints enable wild type cells (that encounter beneficial microenvironments) to compete against genetically resistant subclones in the presence of therapy. In order to parameterize a model of microenvironmental resistance, BT20 cells were cultured in the presence and absence of fibroblasts from 16 different tissues. The degree of resistance conferred by cancer associated fibroblasts in the tumor microenvironment was quantified by treating mono- and co-cultures with letrozole and then measuring the death rates. Results and Discussion Our simulations indicate that, even when a mutation is more drug resistant, its outgrowth can be delayed by abundant, low magnitude microenvironmental resistance across large regions of a tumor that lack genetic resistance. These observations hold for different modes of microenvironmental resistance, including juxtacrine signaling, soluble secreted factors, and remodeled ECM. This result helps to explain the remarkable diversity of resistance mechanisms observed in solid tumors, which subverts the presumption that the failure mode that causes the quantitatively fastest growth in the presence of drug should occur most often in the clinic. Conclusion Our model results demonstrate that spatial effects can interact with low magnitude of resistance microenvironmental effects to successfully compete against genetic resistance that is orders of magnitude larger. Clinical outcomes of solid tumors are intrinsically connected to their spatial structure, and the tractability of spatial agent-based models like the ones presented here enable us to understand this relationship more completely.
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Affiliation(s)
- Scott M. Leighow
- Department of Biomedical Engineering, 211 Wartik Laboratory, Pennsylvania State University, University Park, State College, PA 16802 USA
| | - Ben Landry
- Department of Systems Biology, University of Massachusetts Medical School, Worcester, MA USA
| | - Michael J. Lee
- Department of Systems Biology, University of Massachusetts Medical School, Worcester, MA USA
| | - Shelly R. Peyton
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA USA
| | - Justin R. Pritchard
- Department of Biomedical Engineering, 211 Wartik Laboratory, Pennsylvania State University, University Park, State College, PA 16802 USA
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49
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Jin S, Allam O, Lee K, Lim J, Lee MJ, Loh SH, Jang SS, Lee SW. Carbon Quantum Dot Modified Reduced Graphene Oxide Framework for Improved Alkali Metal Ion Storage Performance. Small 2022; 18:e2202898. [PMID: 35927029 DOI: 10.1002/smll.202202898] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/03/2022] [Indexed: 06/15/2023]
Abstract
Organic materials with redox-active oxygen functional groups are of great interest as electrode materials for alkali-ion storage due to their earth-abundant constituents, structural tunability, and enhanced energy storage properties. Herein, a hybrid carbon framework consisting of reduced graphene oxide and oxygen functionalized carbon quantum dots (CQDs) is developed via the one-pot solvothermal reduction method, and a systematic study is undertaken to investigate its redox mechanism and electrochemical properties with Li-, Na-, and K-ions. Due to the incorporation of CQDs, the hybrid cathode delivers consistent improvements in charge storage performance for the alkali-ions and impressive reversible capacity (257 mAh g-1 at 50 mA g-1 ), rate capability (111 mAh g-1 at 1 A g-1 ), and cycling stability (79% retention after 10 000 cycles) with Li-ion. Furthermore, density functional theory calculations uncover the CQD structure-electrochemical reactivity trends for different alkali-ion. The results provide important insights into adopting CQD species for optimal alkali-ion storage.
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Affiliation(s)
- Shikai Jin
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Omar Allam
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Kyungbin Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jeonghoon Lim
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Michael J Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Sze Hou Loh
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Seung Soon Jang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Seung Woo Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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50
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Lee MJ, Han J, Lee K, Lee YJ, Kim BG, Jung KN, Kim BJ, Lee SW. Addendum: Elastomeric electrolytes for high-energy solid-state lithium batteries. Nature 2022; 609:E11. [PMID: 36042333 DOI: 10.1038/s41586-022-05207-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Michael J Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Junghun Han
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Kyungbin Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Young Jun Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Byoung Gak Kim
- Division of Advanced Materials, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Kyu-Nam Jung
- Renewable Energy Institute, Korea Institute of Energy Research, Daejeon, Republic of Korea
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
| | - Seung Woo Lee
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
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