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Wormsbaecher C, Cumbia BM, Amurgis EG, Poska JM, Price MR, Mo XM, Knoblaugh SE, Kurita T, Burd CJ. Mammary gland development and EDC-driven cancer susceptibility in mesenchymal ERα-knockout mice. Endocr Relat Cancer 2023; 30:e230062. [PMID: 37855322 PMCID: PMC10698735 DOI: 10.1530/erc-23-0062] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 10/11/2023] [Indexed: 10/20/2023]
Abstract
Development of the mammary gland requires both proper hormone signaling and cross talk between the stroma and epithelium. While estrogen receptor (ERα) expression in the epithelium is essential for normal gland development, the role of this receptor in the stroma is less clear. Moreover, several lines of evidence suggest that mouse phenotypes of in utero exposure to endocrine disruption act through mesenchymal ERα in the developing fetus. We utilized a Twist2-cre mouse line to knock out mesenchymal ERα. Herein, we assessed mammary gland development in the context of mesenchymal ERα deletion. We also tested the effect of in utero bisphenol A (BPA) exposure to alter the tumor susceptibility in the mouse mammary tumor virus-neu (MMTV-neu) breast cancer mouse model. Mesenchymal ERα deletion resulted in altered reproductive tract development and atypical cytology associated with estrous cycling. The mammary gland demonstrated mature epithelial extension unlike complete ERα-knockout mice, but ductal extension was delayed and reduced compared to ERα-competent mice. Using the MMTV-Neu cancer susceptibility model, ERα-intact mice exposed to BPA had reduced tumor-free survival and overall survival compared to BPA-exposed mice having mesenchymal ERα deletion. This difference is specific for BPA exposure as vehicle-treated animals had no difference in tumor development between mice expressing and not expressing mesenchymal ERα. These data demonstrate that mesenchymal ERα expression is not required for ductal extension, nor does it influence cancer risk in this mouse model but does influence the cancer incidence associated with in utero BPA exposure.
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Affiliation(s)
- Clarissa Wormsbaecher
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Brittney M Cumbia
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Emma G Amurgis
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Jillian M Poska
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Madeline R Price
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Xiaokui M Mo
- Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Sue E Knoblaugh
- Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio, USA
| | - Takeshi Kurita
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
- Department of Cancer Biology and Genetics, The Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Craig Joseph Burd
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
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Morrish F, Gingras H, Noonan J, Huang L, Sweet IR, Kuok IT, Knoblaugh SE, Hockenbery DM. Mitochondrial diabetes in mice expressing a dominant-negative allele of nuclear respiratory factor-1 ( Nrf1 ) in pancreatic β-cells. bioRxiv 2023:2023.01.22.524153. [PMID: 38014068 PMCID: PMC10680558 DOI: 10.1101/2023.01.22.524153] [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: 11/29/2023]
Abstract
Genetic polymorphisms in nuclear respiratory factor-1 ( NRF1 ), a key transcriptional regulator of nuclear-encoded mitochondrial proteins, have been linked to diabetes. Homozygous deletion of Nrf1 is embryonic lethal in mice. Our goal was to generate mice with β-cell-specific reduction in NRF1 function to investigate the relationship between NRF1 and diabetes. We report the generation of mice expressing a dominant-negative allele of Nrf1 (DNNRF1) in pancreatic β-cells. Heterozygous transgenic mice had high fed blood glucose levels detected at 3 wks of age, which persisted through adulthood. Plasma insulin levels in DNNRF1 transgenic mice were reduced, while insulin sensitivity remained intact in young animals. Islet size was reduced with increased numbers of apoptotic cells, and insulin content in islets by immunohistochemistry was low. Glucose-stimulated insulin secretion in isolated islets was reduced in DNNRF1-mice, but partially rescued by KCl, suggesting that decreased mitochondrial function contributed to the insulin secretory defect. Electron micrographs demonstrated abnormal mitochondrial morphology in β- cells. Expression of NRF1 target genes Tfam , T@1m and T@2m , and islet cytochrome c oxidase and succinate dehydrogenase activities were reduced in DNNRF1-mice. Rescue of mitochondrial function with low level activation of transgenic c-Myc in β-cells was sufficient to restore β-cell mass and prevent diabetes. This study demonstrates that reduced NRF1 function can lead to loss of β-cell function and establishes a model to study the interplay between regulators of bi- genomic gene transcription in diabetes.
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Pita-Grisanti V, Dubay K, Lahooti A, Badi N, Ueltschi O, Gumpper-Fedus K, Hsueh HY, Lahooti I, Chavez-Tomar M, Terhorst S, Knoblaugh SE, Cao L, Huang W, Coss CC, Mace TA, Choueiry F, Hinton A, Mitchell JM, Schmandt R, Grinsfelder MO, Basen-Engquist K, Cruz-Monserrate Z. Physical Activity Delays Obesity-Associated Pancreatic Ductal Adenocarcinoma in Mice and Decreases Inflammation. bioRxiv 2023:2023.01.03.521203. [PMID: 36711764 PMCID: PMC9881853 DOI: 10.1101/2023.01.03.521203] [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] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND & AIMS Obesity is a risk factor for pancreatic ductal adenocarcinoma (PDAC), a deadly disease with limited preventive strategies. Lifestyle interventions to decrease obesity might prevent obesity-associated PDAC. Here, we examined whether decreasing obesity by increased physical activity (PA) and/or dietary changes would decrease inflammation in humans and prevent PDAC in mice. METHODS Circulating inflammatory-associated cytokines of overweight and obese subjects before and after a PA intervention were compared. PDAC pre-clinical models were exposed to PA and/or dietary interventions after obesity-associated cancer initiation. Body composition, tumor progression, growth, fibrosis, inflammation, and transcriptomic changes in the adipose tissue were evaluated. RESULTS PA decreased the levels of systemic inflammatory cytokines in overweight and obese subjects. PDAC mice on a diet-induced obesity (DIO) and PA intervention, had delayed weight gain, decreased systemic inflammation, lower grade pancreatic intraepithelial neoplasia lesions, reduced PDAC incidence, and increased anti-inflammatory signals in the adipose tissue compared to controls. PA had additional cancer prevention benefits when combined with a non-obesogenic diet after DIO. However, weight loss through PA alone or combined with a dietary intervention did not prevent tumor growth in an orthotopic PDAC model. Adipose-specific targeting of interleukin (IL)-15, an anti-inflammatory cytokine induced by PA in the adipose tissue, slowed PDAC growth. CONCLUSIONS PA alone or combined with diet-induced weight loss delayed the progression of PDAC and reduced systemic and adipose inflammatory signals. Therefore, obesity management via dietary interventions and/or PA, or modulating weight loss related pathways could prevent obesity-associated PDAC in high-risk obese individuals.
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Affiliation(s)
- Valentina Pita-Grisanti
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
- The Ohio State University Interdisciplinary Nutrition Program, The Ohio State University, Columbus, OH
| | - Kelly Dubay
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Ali Lahooti
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Niharika Badi
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Olivia Ueltschi
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Kristyn Gumpper-Fedus
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Hsiang-Yin Hsueh
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
- The Ohio State University Molecular, Cellular, and Developmental Biology Program, The Ohio State University, Columbus, OH
| | - Ila Lahooti
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Myrriah Chavez-Tomar
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Samantha Terhorst
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Sue E. Knoblaugh
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH
| | - Lei Cao
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Wei Huang
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Christopher C. Coss
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH
| | - Thomas A. Mace
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Fouad Choueiry
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
| | - Alice Hinton
- Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, OH
| | - Jennifer M Mitchell
- Department of Veterinary Medicine and Surgery, UT MD Anderson Cancer Center, Houston, TX
| | - Rosemarie Schmandt
- Department of Gynecologic Oncology and Reproductive Medicine, Division of Surgery, The University of Texas MD Anderson Cancer Center, UT MD Anderson Cancer Center, Houston, TX
| | - Michaela Onstad Grinsfelder
- Department of Gynecologic Oncology and Reproductive Medicine, Division of Surgery, The University of Texas MD Anderson Cancer Center, UT MD Anderson Cancer Center, Houston, TX
| | - Karen Basen-Engquist
- Department of Behavioral Science, Center for Energy Balance, The University of Texas MD Anderson Cancer Center, UT MD Anderson Cancer Center, Houston, TX
| | - Zobeida Cruz-Monserrate
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH
- The Comprehensive Cancer Center–Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH
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Burkhard MJ, Dawkins S, Knoblaugh SE, El-Khoury C, Coble D, Malbrue RA, Read EK, Greenhill LM, Moore RM. Supporting diversity, equity, inclusion, and belonging to strengthen and position the veterinary profession for service, sustainability, excellence, and impact. J Am Vet Med Assoc 2022; 260:1283-1290. [DOI: 10.2460/javma.21.11.0477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Advancing equality and equity in society is creating positive change, and the time has come to critically evaluate veterinary medicine, which, by all metrics, lacks diversity. To keep pace with increasingly diverse demographics and recent surges in pet ownership among all racial/ethnic groups, significant efforts to enhance diversity, equity, inclusion, and belonging (DEIB) must occur in veterinary colleges and the profession. Recruiting more underrepresented students, building pipelines for diverse faculty/staff, and creating inclusive, welcoming environments where all can thrive are critical steps toward enhancing DEIB within our organizations and profession. Our goal is to share experiences and lessons learned from our intentional commitment to strengthen DEIB, with the hope that our journey will be helpful to others. Increasing diversity in the veterinary profession will be facilitated through removing barriers, creating inclusive work environments where all people feel they belong, and ensuring fair and equitable hiring and personnel management practices. These steps should in turn improve access and quality of veterinary care, ensure we are more representative of the communities we serve, increase revenue, and preserve the human-animal bond.
“You cannot change any society unless you take responsibility for it, unless you see yourself belonging to it, and responsible for changing it.”
– Grace Lee Boggs
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Affiliation(s)
- Mary Jo Burkhard
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Sandra Dawkins
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Sue E. Knoblaugh
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | | | - Dondrae Coble
- Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH
| | - Raphael A. Malbrue
- Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH
| | - Emma K. Read
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | | | - Rustin M. Moore
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
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Dauch C, Shim S, Cole MW, Pollock NC, Beer AJ, Ramroop J, Klee V, Allain DC, Shakya R, Knoblaugh SE, Kulewsky J, Toland AE. KMT2D loss drives aggressive tumor phenotypes in cutaneous squamous cell carcinoma. Am J Cancer Res 2022; 12:1309-1322. [PMID: 35411237 PMCID: PMC8984905] [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] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 02/16/2022] [Indexed: 06/14/2023] Open
Abstract
Cutaneous squamous cell carcinoma (cSCC) is the second most lethal skin cancer. Due to ultraviolet light-induced damage, cSCCs have a high mutation rate, but some genes are more frequently mutated in aggressive cSCCs. Lysine-specific histone methyltransferase 2D (KMT2D) has a two-fold higher mutation frequency in metastatic cSCCs relative to primary non-metastatic associated cSCCs. The role of KMT2D in more aggressive phenotypes in cSCC is uncharacterized. Studies of other tumor types suggest that KMT2D acts to suppress tumor development. To determine whether KMT2D loss has an impact on tumor characteristics, we disrupted KMT2D in a cSCC cell line using CRISPR-cas9 and performed phenotypic analyses. KMT2D loss modestly increased cell proliferation and colony formation (1.4- and 1.6-fold respectively). Cells lacking KMT2D showed increased rates of migration and faster cell cycle progression. In xenograft models, tumors with KMT2D loss showed slight increases in mitotic indices. Collectively, these findings suggest that KMT2D loss-of-function mutations may promote more aggressive and invasive behaviors in cSCC, suggesting that KMT2D-related pathways could be targets for cancer therapies. Future studies to determine the downstream genes and mechanism of phenotypic effect are needed.
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Affiliation(s)
- Cara Dauch
- Department of Cancer Biology and Genetics, The Ohio State University College of MedicineColumbus, OH 43210, USA
| | - Sharon Shim
- Central Michigan University College of MedicineMount Pleasant, MI 48858, USA
| | - Matthew Wyatt Cole
- Department of Cancer Biology and Genetics, The Ohio State University College of MedicineColumbus, OH 43210, USA
- Department of Radiation Oncology, The Ohio State UniversityColumbus, OH 43210, USA
| | - Nijole C Pollock
- Department of Cancer Biology and Genetics, The Ohio State University College of MedicineColumbus, OH 43210, USA
| | - Abigail J Beer
- Department of Cancer Biology and Genetics, The Ohio State University College of MedicineColumbus, OH 43210, USA
| | - Johnny Ramroop
- Department of Cancer Biology and Genetics, The Ohio State University College of MedicineColumbus, OH 43210, USA
| | - Victoria Klee
- Department of Internal Medicine, Division of Human Genetics, The Ohio State UniversityColumbus, OH 43210, USA
| | - Dawn C Allain
- Department of Internal Medicine, Division of Human Genetics, The Ohio State UniversityColumbus, OH 43210, USA
| | - Reena Shakya
- Comprehensive Cancer Center, The Ohio State UniversityColumbus, OH 43210, USA
| | - Sue E Knoblaugh
- Department of Veterinary Biosciences, The Ohio State UniversityColumbus, OH 43210, USA
| | - Jesse Kulewsky
- Department of Pathology, The Ohio State University Wexner Medical CenterColumbus, OH 43210, USA
| | - Amanda Ewart Toland
- Department of Cancer Biology and Genetics, The Ohio State University College of MedicineColumbus, OH 43210, USA
- Department of Internal Medicine, Division of Human Genetics, The Ohio State UniversityColumbus, OH 43210, USA
- Comprehensive Cancer Center, The Ohio State UniversityColumbus, OH 43210, USA
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Moore RM, Buffington BC, Abraham SL, Reid K, Burkhard MJ, El-Khoury C, Fark AM, Gonya J, Hoying J, Jennings RN, Knoblaugh SE, Miller MB, Nielsen J, Read EK, Saia S, Silveus AM, Yardley J, Melnyk BM. BE WELL: Changing the culture of a college of veterinary medicine using a comprehensive and integrated approach to promote health and well-being. J Am Vet Med Assoc 2022; 260:844-852. [PMID: 35201997 DOI: 10.2460/javma.21.07.0344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Rustin M Moore
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Brenda C Buffington
- Office of the Chief Wellness Officer, The Ohio State University, Columbus, OH
| | | | - Katie Reid
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Mary Jo Burkhard
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | | | - Amanda M Fark
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Jenn Gonya
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | | | - Ryan N Jennings
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Sue E Knoblaugh
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Matthew B Miller
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Joelle Nielsen
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Emma K Read
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Sharon Saia
- Employee Assistance Program, The Ohio State University, Columbus, OH
| | - Aaron M Silveus
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Jonathan Yardley
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
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Richardson DS, Cole MW, Schafer RE, Spehar JM, Steck SA, Das M, Lian AW, Ray A, Shakya R, Knoblaugh SE, Timmers CD, Sizemore GM, Sizemore ST. Abstract P5-08-17: Small G protein RALA is a driver and potential therapeutic target in triple negative breast cancer. Cancer Res 2022. [DOI: 10.1158/1538-7445.sabcs21-p5-08-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Triple Negative Breast Cancer (TNBC) is the leading cause of cancer mortality in women, mostly due to the lack of targeted treatment for this subtype of breast cancer (BC). RALA and RALB are small GTPases implicated in tumor proliferation, survival, and metastasis in a variety of cancers. However, little is known of their roles in breast cancer. Utilizing 3D spheroid invasion assays, we identified that knockout (KO) of RALA greatly reduced the invasion of MDA-MB-231 spheroids in basement membrane extract (BME). Conversely, RALB-KO significantly increased 3D invasion of MDA-MB-231 cells. We further investigated roles for RALA and RALB in TNBC with cell viability assays, transwell assays, and 3D growth assays. Results indicate that KO or depletion of RALA in TNBC cell lines MDA-MB-231 and MDA-MB-468 reduces cell viability and cell migration capabilities in vitro. On the contrary, loss of RALB increased cell migration and viability. Treating TNBC cells with a small molecule inhibitor of both RAL isoforms (BQU57) reduced cell growth in vitro as well as tumor growth and metastasis in vivo. Furthermore, RALA expression, but not RALB expression, was predictive of response to chemotherapy in TNBC patients and RAL inhibitor sensitized TNBC cells to paclitaxel. Combined, these results highlight the importance of the RALs, particularly RALA, as a therapeutic targets in TNBC.
Citation Format: Dillon S. Richardson, Matthew W. Cole, Rachel E. Schafer, Jonathan M. Spehar, Sarah A. Steck, Manjusri Das, Arthur W. Lian, Alo Ray, Reena Shakya, Sue E. Knoblaugh, Cynthia D. Timmers, Gina M. Sizemore, Steven T. Sizemore. Small G protein RALA is a driver and potential therapeutic target in triple negative breast cancer [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P5-08-17.
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Affiliation(s)
| | | | | | | | | | | | | | - Alo Ray
- The Ohio State University, Columbus, OH
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Spehar JM, Thies KA, Cole MW, Schafer RE, Richardson DS, Steck SA, Das M, Lian AW, Ray A, Knoblaugh SE, Trimmers CD, Sizemore GM, Sizemore ST. Abstract PD3-05: The paradoxical role of RalA and RalB in triple negative breast cancer. Cancer Res 2022. [DOI: 10.1158/1538-7445.sabcs21-pd3-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast Cancer (BC) is the most common cancer and leading cause of cancer associated mortality in women worldwide. TNBC patients have the highest mortality mainly due to lack of receptors for targeted therapies. RalA and RalB are small GTPases that are known to regulate growth and metastasis in several cancers. However, roles for these GTPases in BC is poorly understood. The goal of this study was to investigate the contributions of RalA and RalB in TNBC. Methods: Control, RalA or RalB CRISPR knockout (KO) MDA-MB-231 cells were injected into the mammary gland of nod-skid-gamma (NSG) mice. Tumor growth was monitored and groups were taken as they met early removal criteria. Tumors and lungs were formalin-fixed and paraffin embedded. Tumors underwent immunohistochemical staining for Ki-67 and Cleaved caspase-3 and lungs were stained for hematoxylin and eosin and imaged on a Leica Aperio ScanScope XT to calculate lung metastasis. RalA or RalB were also depleted in MDA-MB-231 and MVT1 cells by shRNA. In addition, RalA depleted MDA-MB-231 cells were labeled with luciferase and injected into the tail vein of NSG mice and imaged on an IVIS spectrum to test seeding and lung colonization. Immunohistochemistry of patient TMAs was preformed on a Bond RX autostainer using RalA (Abcam, ab126627, 1:2000). Immunohistochemical stains were imaged on a PerkinElmer’s Vectra® Automatic Imaging System and quantified using inForm® Advanced Image Analysis software. Statistical significance of Kaplan-Meier survival curves were determined by log rank. Results: RalA knockout and depletion slowed primary orthotopic tumor growth in MDA-MB-231 and MVT1 cells. RalB KO had the opposite effect and increased growth rate compared to controls and RalA KO cells. Ki67 and cleaved caspase 3 IHC staining of tumors indicate KO of RalA decreased proliferation, whereas KO RalB increased proliferation with no change in apoptosis. RalA KO decreased the number and area of lung metastasis in both spontaneous and experimental metastasis assays. RalB KO or depletion caused an increase in the area and number of metastasis. Utilizing data from the METABRIC and TCGA BC datasets, elevated RALA, but not RALB, was prognostic of worse outcome in the overall BC populations and the TNBC populations specifically. RALA was shown to be more highly expressed in BC, particularly TNBC, relative to normal mammary tissue whereas RalB was decreased in BC and TNBC. IHC staining of a TMA comprised of all BC subtypes and a TMA of only TNBC samples confirmed RalA as a prognostic marker of patient outcome. Conclusions: RalA and RalB have important but paradoxical roles in TNBC.
Citation Format: Jonathan M. Spehar, Katie A. Thies, Matthew W. Cole, Rachel E. Schafer, Dillon S. Richardson, Sarah A. Steck, Manjusri Das, Arthur W. Lian, Alo Ray, Sue E. Knoblaugh, Cynthia D. Trimmers, Gina M. Sizemore, Steven T. Sizemore. The paradoxical role of RalA and RalB in triple negative breast cancer [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr PD3-05.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Alo Ray
- The Ohio State University, Columbus, OH
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9
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Thies KA, Cole MW, Schafer RE, Spehar JM, Richardson DS, Steck SA, Das M, Lian AW, Ray A, Shakya R, Knoblaugh SE, Timmers CD, Ostrowski MC, Chakravarti A, Sizemore GM, Sizemore ST. The small G-protein RalA promotes progression and metastasis of triple-negative breast cancer. Breast Cancer Res 2021; 23:65. [PMID: 34118960 PMCID: PMC8196523 DOI: 10.1186/s13058-021-01438-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 05/13/2021] [Indexed: 02/01/2023] Open
Abstract
Background Breast cancer (BC) is the most common cancer in women and the leading cause of cancer-associated mortality in women. In particular, triple-negative BC (TNBC) has the highest rate of mortality due in large part to the lack of targeted treatment options for this subtype. Thus, there is an urgent need to identify new molecular targets for TNBC treatment. RALA and RALB are small GTPases implicated in growth and metastasis of a variety of cancers, although little is known of their roles in BC. Methods The necessity of RALA and RALB for TNBC tumor growth and metastasis were evaluated in vivo using orthotopic and tail-vein models. In vitro, 2D and 3D cell culture methods were used to evaluate the contributions of RALA and RALB during TNBC cell migration, invasion, and viability. The association between TNBC patient outcome and RALA and RALB expression was examined using publicly available gene expression data and patient tissue microarrays. Finally, small molecule inhibition of RALA and RALB was evaluated as a potential treatment strategy for TNBC in cell line and patient-derived xenograft (PDX) models. Results Knockout or depletion of RALA inhibited orthotopic primary tumor growth, spontaneous metastasis, and experimental metastasis of TNBC cells in vivo. Conversely, knockout of RALB increased TNBC growth and metastasis. In vitro, RALA and RALB had antagonistic effects on TNBC migration, invasion, and viability with RALA generally supporting and RALB opposing these processes. In BC patient populations, elevated RALA but not RALB expression is significantly associated with poor outcome across all BC subtypes and specifically within TNBC patient cohorts. Immunohistochemical staining for RALA in patient cohorts confirmed the prognostic significance of RALA within the general BC population and the TNBC population specifically. BQU57, a small molecule inhibitor of RALA and RALB, decreased TNBC cell line viability, sensitized cells to paclitaxel in vitro and decreased tumor growth and metastasis in TNBC cell line and PDX models in vivo. Conclusions Together, these data demonstrate important but paradoxical roles for RALA and RALB in the pathogenesis of TNBC and advocate further investigation of RALA as a target for the precise treatment of metastatic TNBC. Supplementary Information The online version contains supplementary material available at 10.1186/s13058-021-01438-3.
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Affiliation(s)
- Katie A Thies
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Matthew W Cole
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Rachel E Schafer
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Jonathan M Spehar
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Dillon S Richardson
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Sarah A Steck
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Manjusri Das
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Arthur W Lian
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Alo Ray
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Reena Shakya
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Target Validation Shared Resource, The Ohio State University, Columbus, OH, 43210, USA
| | - Sue E Knoblaugh
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, 43210, USA
| | - Cynthia D Timmers
- The Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA.,Division of Hematology and Oncology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Michael C Ostrowski
- The Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA.,Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Arnab Chakravarti
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Gina M Sizemore
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Steven T Sizemore
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA. .,Department of Radiation Oncology, The Ohio State University, 646A TMRF, 420 W. 12th Avenue, Columbus, OH, 43210, USA.
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10
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Thies KA, Steck S, Knoblaugh SE, Sizemore ST. Pathological Analysis of Lung Metastasis Following Lateral Tail-Vein Injection of Tumor Cells. J Vis Exp 2020. [PMID: 32510518 DOI: 10.3791/61270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Metastasis, the primary cause of morbidity and mortality for most cancer patients, can be challenging to model preclinically in mice. Few spontaneous metastasis models are available. Thus, the experimental metastasis model involving tail-vein injection of suitable cell lines is a mainstay of metastasis research. When cancer cells are injected into the lateral tail-vein, the lung is their preferred site of colonization. A potential limitation of this technique is the accurate quantification of the metastatic lung tumor burden. While some investigators count macrometastases of a pre-defined size and/or include micrometastases following sectioning of tissue, others determine the area of metastatic lesions relative to normal tissue area. Both of these quantification methods can be exceedingly difficult when the metastatic burden is high. Herein, we demonstrate an intravenous injection model of lung metastasis followed by an advanced method for quantifying metastatic tumor burden using image analysis software. This process allows for investigation of multiple end-point parameters, including average metastasis size, total number of metastases, and total metastasis area, to provide a comprehensive analysis. Furthermore, this method has been reviewed by a veterinary pathologist board-certified by the American College of Veterinary Pathologists (SEK) to ensure accuracy.
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Affiliation(s)
- Katie A Thies
- Department of Radiation Oncology, Arthur G. James Comprehensive Cancer Center and Richard L. Solove Research Institute, The Ohio State University Medical Center
| | - Sarah Steck
- Department of Radiation Oncology, Arthur G. James Comprehensive Cancer Center and Richard L. Solove Research Institute, The Ohio State University Medical Center
| | - Sue E Knoblaugh
- Department of Veterinary Biosciences, Comparative Pathology and Digital Imaging Shared Resource, The Ohio State University
| | - Steven T Sizemore
- Department of Radiation Oncology, Arthur G. James Comprehensive Cancer Center and Richard L. Solove Research Institute, The Ohio State University Medical Center;
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11
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Knoblaugh SE, Hohl TM, La Perle KMD. Pathology Principles and Practices for Analysis of Animal Models. ILAR J 2019; 59:40-50. [PMID: 31053847 DOI: 10.1093/ilar/ilz001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 09/01/2017] [Revised: 01/03/2019] [Indexed: 12/18/2022] Open
Abstract
Over 60% of NIH extramural funding involves animal models, and approximately 80% to 90% of these are mouse models of human disease. It is critical to translational research that animal models are accurately characterized and validated as models of human disease. Pathology analysis, including histopathology, is essential to animal model studies by providing morphologic context to in vivo, molecular, and biochemical data; however, there are many considerations when incorporating pathology endpoints into an animal study. Mice, and in particular genetically modified models, present unique considerations because these modifications are affected by background strain genetics, husbandry, and experimental conditions. Comparative pathologists recognize normal pathobiology and unique phenotypes that animals, including genetically modified models, may present. Beyond pathology, comparative pathologists with research experience offer expertise in animal model development, experimental design, optimal specimen collection and handling, data interpretation, and reporting. Critical pathology considerations in the design and use of translational studies involving animals are discussed, with an emphasis on mouse models.
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Affiliation(s)
- Sue E Knoblaugh
- Department of Veterinary Biosciences, and Comparative Pathology & Mouse Phenotyping Shared Resource, The Ohio State University, Columbus, Ohio
| | - Tobias M Hohl
- Infectious Diseases Service, Memorial Sloan Kettering Cancer Center, New York City, New York
| | - Krista M D La Perle
- Department of Veterinary Biosciences, and Comparative Pathology & Mouse Phenotyping Shared Resource, The Ohio State University, Columbus, Ohio
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12
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Knoblaugh SE, Himmel LE. Keeping Score: Semiquantitative and Quantitative Scoring Approaches to Genetically Engineered and Xenograft Mouse Models of Cancer. Vet Pathol 2018; 56:24-32. [PMID: 30381015 DOI: 10.1177/0300985818808526] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 11/15/2022]
Abstract
There is a growing need to quantitate or "score" lesions in mouse models of human disease, for correlation with human disease and to establish their clinical relevance. Several standard semiquantitative scoring schemes have been adapted for nonneoplastic lesions; similarly, the pathologist must carefully select an approach to score mouse models of cancer. Genetically engineered mouse models with a continuum of precancerous and cancerous lesions and xenogeneic models of various derivations present unique challenges for the pathologist. Important considerations include experimental design, understanding of the human disease being modeled, standardized classification of lesions, and approaches for semiquantitative and/or quantitative scoring in the model being evaluated. Quantification should be considered for measuring the extent of neoplasia and expression of tumor biomarkers. Semiquantitative scoring schemes have been devised that include severity, frequency, and distribution of lesions. Although labor-intensive, scoring mouse models of cancer provides numerical data that enable statistical analysis and greater translational impact.
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Affiliation(s)
- Sue E Knoblaugh
- 1 Department of Veterinary Biosciences, Comparative Pathology and Mouse Phenotyping Shared Resource, The Ohio State University College of Veterinary Medicine, Columbus, OH, USA
| | - Lauren E Himmel
- 2 Department of Pathology, Microbiology and Immunology, Translational Pathology Shared Resource, Vanderbilt University Medical Center, Nashville, TN, USA
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13
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Morris SM, Davison J, Carter KT, O'Leary RM, Trobridge P, Knoblaugh SE, Myeroff LL, Markowitz SD, Brett BT, Scheetz TE, Dupuy AJ, Starr TK, Grady WM. Transposon mutagenesis identifies candidate genes that cooperate with loss of transforming growth factor-beta signaling in mouse intestinal neoplasms. Int J Cancer 2016; 140:853-863. [PMID: 27790711 DOI: 10.1002/ijc.30491] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 10/06/2016] [Accepted: 10/10/2016] [Indexed: 12/22/2022]
Abstract
Colorectal cancer (CRC) results from the accumulation of gene mutations and epigenetic alterations in colon epithelial cells, which promotes CRC formation through deregulating signaling pathways. One of the most commonly deregulated signaling pathways in CRC is the transforming growth factor β (TGF-β) pathway. Importantly, the effects of TGF-β signaling inactivation in CRC are modified by concurrent mutations in the tumor cell, and these concurrent mutations determine the ultimate biological effects of impaired TGF-β signaling in the tumor. However, many of the mutations that cooperate with the deregulated TGF-β signaling pathway in CRC remain unknown. Therefore, we sought to identify candidate driver genes that promote the formation of CRC in the setting of TGF-β signaling inactivation. We performed a forward genetic screen in mice carrying conditionally inactivated alleles of the TGF-β receptor, type II (Tgfbr2) using Sleeping Beauty (SB) transposon mediated mutagenesis. We used TAPDANCE and Gene-centric statistical methods to identify common insertion sites (CIS) and, thus, candidate tumor suppressor genes and oncogenes within the tumor genome. CIS analysis of multiple neoplasms from these mice identified many candidate Tgfbr2 cooperating genes and the Wnt/β-catenin, Hippo and MAPK pathways as the most commonly affected pathways. Importantly, the majority of candidate genes were also found to be mutated in human CRC. The SB transposon system provides an unbiased method to identify Tgfbr2 cooperating genes in mouse CRC that are functionally relevant and that may provide further insight into the pathogenesis of human CRC.
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Affiliation(s)
- Shelli M Morris
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Jerry Davison
- Public Health Sciences Division, Genomics and Bioinformatics Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Kelly T Carter
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Rachele M O'Leary
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Patty Trobridge
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Sue E Knoblaugh
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH
| | - Lois L Myeroff
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH
- Department of Medicine, Case Western Reserve University, Cleveland, OH
| | - Sanford D Markowitz
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH
- Department of Medicine, Case Western Reserve University, Cleveland, OH
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH
| | - Benjamin T Brett
- Center for Bioinformatics and Computational Biology, University of Iowa, Iowa City, IA
| | - Todd E Scheetz
- Center for Bioinformatics and Computational Biology, University of Iowa, Iowa City, IA
- Department of Ophthalmology and Visual Sciences, Roy J. & Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA
| | - Adam J Dupuy
- Department of Anatomy and Cell Biology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA
- Department of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA
| | - Timothy K Starr
- Department of Obstetrics, Gynecology & Women's Health, Masonic Cancer Center, University of Minnesota, Minneapolis, MN
- Department of Genetics, Cell Biology & Development, University of Minnesota, Minneapolis, MN
| | - William M Grady
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Department of Medicine, University of Washington School of Medicine, Seattle, WA
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14
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Baik FM, Hansen S, Knoblaugh SE, Sahetya D, Mitchell RM, Xu C, Olson JM, Parrish-Novak J, Méndez E. Fluorescence Identification of Head and Neck Squamous Cell Carcinoma and High-Risk Oral Dysplasia With BLZ-100, a Chlorotoxin-Indocyanine Green Conjugate. JAMA Otolaryngol Head Neck Surg 2016; 142:330-8. [PMID: 26892902 DOI: 10.1001/jamaoto.2015.3617] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
IMPORTANCE Surgical cure of head and neck squamous cell carcinoma (HNSCC) remains hampered by inadequately resected tumors and poor recognition of lesions with malignant potential. BLZ-100 is a chlorotoxin-based, tumor-targeting agent that has not yet been studied in HNSCC. OBJECTIVE To evaluate BLZ-100 uptake in models of HNSCC and oral dysplasia. DESIGN, SETTING, AND PARTICIPANTS This was an observational study (including sensitivity and specificity analysis) of BLZ-100 uptake in an orthotopic xenograft mouse model of HNSCC and a carcinogen-induced dysplasia model of hamster cheek pouches. INTERVENTIONS Various HNSCC xenografts were established in the tongues of NOD-scid IL2Rgammanull (NSG) mice. BLZ-100 was intravenously injected and fluorescence uptake was measured. To induce dysplasia, the carcinogen 7,12-dimethylbenz(a)anthracene (DMBA) was applied to the cheek pouch of Golden Syrian hamsters for 9 to16 weeks. BLZ-100 was subcutaneously injected, and fluorescence uptake was measured. MAIN OUTCOMES AND MEASURES The signal-to-background ratio (SBR) of BLZ-100 was measured in tumor xenografts. To calculate the sensitivity and specificity of BLZ-100 uptake, a digital grid was placed over tissue sections and correlative histologic sections to discretely measure fluorescence intensity and presence of tumor; a receiver operating characteristic (ROC) curve was then plotted. In the hamster dysplasia model, cheeks were graded according to dysplasia severity. The SBR of BLZ-100 was compared among dysplasia grades. RESULTS In HNSCC xenografts, BLZ-100 demonstrated a mean (SD) SBR of 2.51 (0.47). The ROC curve demonstrated an area under the curve (AUC) of 0.89; an SBR of 2.50 corresponded to 92% sensitivity and 74% specificity. When this analysis was focused on the tumor and nontumor interface, the AUC increased to 0.97; an SBR of 2.50 corresponded to 95% sensitivity and 91% specificity. DMBA treatment of hamster cheek pouches generated lesions representing all grades of dysplasia. The SBR of high-grade dysplasia was significantly greater than that of mild-to-moderate dysplasia (2.31 [0.71] vs 1.51 [0.34], P = .006). CONCLUSIONS AND RELEVANCE BLZ-100 is a sensitive and specific marker of HNSCC and can distinguish high-risk from low-risk dysplasia. BLZ-100 has the potential to serve as an intraoperative guide for tumor margin excision and identification of premalignant lesions.
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Affiliation(s)
- Fred M Baik
- Department of Otolaryngology-Head and Neck Surgery, University of Washington, Seattle
| | | | - Sue E Knoblaugh
- Department of Veterinary Biosciences, The Ohio State University, Columbus
| | | | - Ryan M Mitchell
- Department of Otolaryngology-Head and Neck Surgery, University of Washington, Seattle
| | - Chang Xu
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - James M Olson
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | | | - Eduardo Méndez
- Department of Otolaryngology-Head and Neck Surgery, University of Washington, Seattle4Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington
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15
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Schietinger A, Philip M, Krisnawan VE, Chiu EY, Delrow JJ, Basom RS, Lauer P, Brockstedt DG, Knoblaugh SE, Hämmerling GJ, Schell TD, Garbi N, Greenberg PD. Tumor-Specific T Cell Dysfunction Is a Dynamic Antigen-Driven Differentiation Program Initiated Early during Tumorigenesis. Immunity 2016; 45:389-401. [PMID: 27521269 DOI: 10.1016/j.immuni.2016.07.011] [Citation(s) in RCA: 436] [Impact Index Per Article: 54.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 01/22/2016] [Accepted: 05/05/2016] [Indexed: 01/21/2023]
Abstract
CD8(+) T cells recognizing tumor-specific antigens are detected in cancer patients but are dysfunctional. Here we developed a tamoxifen-inducible liver cancer mouse model with a defined oncogenic driver antigen (SV40 large T-antigen) to follow the activation and differentiation of naive tumor-specific CD8(+) T (TST) cells after tumor initiation. Early during the pre-malignant phase of tumorigenesis, TST cells became dysfunctional, exhibiting phenotypic, functional, and transcriptional features similar to dysfunctional T cells isolated from late-stage human tumors. Thus, T cell dysfunction seen in advanced human cancers may already be established early during tumorigenesis. Although the TST cell dysfunctional state was initially therapeutically reversible, it ultimately evolved into a fixed state. Persistent antigen exposure rather than factors associated with the tumor microenvironment drove dysfunction. Moreover, the TST cell differentiation and dysfunction program exhibited features distinct from T cell exhaustion in chronic infections. Strategies to overcome this antigen-driven, cell-intrinsic dysfunction may be required to improve cancer immunotherapy.
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Affiliation(s)
- Andrea Schietinger
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Department of Immunology, University of Washington, Seattle, WA 98109, USA; Program of Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
| | - Mary Philip
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Division of Hematology, University of Washington, Seattle, WA 98195, USA
| | - Varintra E Krisnawan
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Edison Y Chiu
- Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Jeffrey J Delrow
- Genomics and Bioinformatics Shared Resources, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Ryan S Basom
- Genomics and Bioinformatics Shared Resources, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Peter Lauer
- Aduro BioTech, Inc., Berkeley, CA 94710, USA
| | | | - Sue E Knoblaugh
- Comparative Medicine Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Günter J Hämmerling
- Divisions of Cellular and Molecular Immunology, DKFZ, 69120 Heidelberg, Germany
| | - Todd D Schell
- Department of Microbiology & Immunology, Penn State Hershey College of Medicine, Hershey, PA 17033, USA
| | - Natalio Garbi
- Divisions of Cellular and Molecular Immunology, DKFZ, 69120 Heidelberg, Germany; Institutes of Molecular Medicine and Experimental Immunology, University of Bonn, 53127 Bonn, Germany
| | - Philip D Greenberg
- Department of Immunology, University of Washington, Seattle, WA 98109, USA; Program of Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
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16
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Metz HE, Kargl J, Busch SE, Kim KH, Kurland BF, Abberbock SR, Randolph-Habecker J, Knoblaugh SE, Kolls JK, White MF, Houghton AM. Insulin receptor substrate-1 deficiency drives a proinflammatory phenotype in KRAS mutant lung adenocarcinoma. Proc Natl Acad Sci U S A 2016; 113:8795-800. [PMID: 27439864 PMCID: PMC4978299 DOI: 10.1073/pnas.1601989113] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Insulin receptor substrate-1 (IRS-1) is a signaling adaptor protein that interfaces with many pathways activated in lung cancer. It has been assumed that IRS-1 promotes tumor growth through its ability to activate PI3K signaling downstream of the insulin-like growth factor receptor. Surprisingly, tumors with reduced IRS-1 staining in a human lung adenocarcinoma tissue microarray displayed a significant survival disadvantage, especially within the Kirsten rat sarcoma viral oncogene homolog (KRAS) mutant subgroup. Accordingly, adenoviral Cre recombinase (AdCre)-treated LSL-Kras/Irs-1(fl/fl) (Kras/Irs-1(-/-)) mice displayed increased tumor burden and mortality compared with controls. Mechanistically, IRS-1 deficiency promotes Janus kinase/signal transducers and activators of transcription (JAK/STAT) signaling via the IL-22 receptor, resulting in enhanced tumor-promoting inflammation. Treatment of Kras/Irs-1(+/+) and Kras/Irs-1(-/-) mice with JAK inhibitors significantly reduced tumor burden, most notably in the IRS-1-deficient group.
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Affiliation(s)
- Heather E Metz
- Department of Medicine, Fred Hutchinson Cancer Research Center, Seattle, WA 98109; Department of Pathology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109; Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109
| | - Julia Kargl
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109; Institute of Experimental and Clinical Pharmacology, Medical University of Graz, 8036 Graz, Austria
| | - Stephanie E Busch
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109
| | - Kyoung-Hee Kim
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109
| | - Brenda F Kurland
- University of Pittsburgh Cancer Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261; Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA 15261
| | - Shira R Abberbock
- University of Pittsburgh Cancer Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Julie Randolph-Habecker
- Experimental Histopathology Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, WA 98109
| | - Sue E Knoblaugh
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH 43210
| | - Jay K Kolls
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Morris F White
- Division of Endocrinology, Boston Children's Hospital, Boston, MA 02115
| | - A McGarry Houghton
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109; Department of Veterinary Biosciences, The Ohio State University, Columbus, OH 43210; Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109; Division of Pulmonary and Critical Care, University of Washington, Seattle, WA 98195
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17
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Fidel J, Kennedy KC, Dernell WS, Hansen S, Wiss V, Stroud MR, Molho JI, Knoblaugh SE, Meganck J, Olson JM, Rice B, Parrish-Novak J. Preclinical Validation of the Utility of BLZ-100 in Providing Fluorescence Contrast for Imaging Spontaneous Solid Tumors. Cancer Res 2016; 75:4283-91. [PMID: 26471914 DOI: 10.1158/0008-5472.can-15-0471] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
There is a need in surgical oncology for contrast agents that can enable real-time intraoperative visualization of solid tumors that can enable complete resections while sparing normal surrounding tissues. The Tumor Paint agent BLZ-100 is a peptide-fluorophore conjugate that can specifically bind solid tumors and fluoresce in the near-infrared range, minimizing light scatter and signal attenuation. In this study, we provide a preclinical proof of concept for use of this imaging contrast agent as administered before surgery to dogs with a variety of naturally occurring spontaneous tumors. Imaging was performed on excised tissues as well as intraoperatively in a subset of cases. Actionable contrast was achieved between tumor tissue and surrounding normal tissues in adenocarcinomas, squamous cell carcinomas, mast cell tumors, and soft tissue sarcomas. Subcutaneous soft tissue sarcomas were labeled with the highest fluorescence intensity and greatest tumor-to-background signal ratio. Our results establish a foundation that rationalizes clinical studies in humans with soft tissue sarcoma, an indication with a notably high unmet need.
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Affiliation(s)
- Janean Fidel
- College of Veterinary Medicine, Washington State University, Pullman, Washington
| | - Katie C Kennedy
- College of Veterinary Medicine, Washington State University, Pullman, Washington
| | - William S Dernell
- College of Veterinary Medicine, Washington State University, Pullman, Washington
| | | | | | | | | | | | | | - James M Olson
- Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Brad Rice
- PerkinElmer, Inc., Waltham, Massachusetts
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18
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Frost SHL, Miller BW, Bäck TA, Santos EB, Hamlin DK, Knoblaugh SE, Frayo SL, Kenoyer AL, Storb R, Press OW, Wilbur DS, Pagel JM, Sandmaier BM. α-Imaging Confirmed Efficient Targeting of CD45-Positive Cells After 211At-Radioimmunotherapy for Hematopoietic Cell Transplantation. J Nucl Med 2015; 56:1766-73. [PMID: 26338894 DOI: 10.2967/jnumed.115.162388] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/20/2015] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED α-radioimmunotherapy targeting CD45 may substitute for total-body irradiation in hematopoietic cell transplantation (HCT) preparative regimens for lymphoma. Our goal was to optimize the anti-CD45 monoclonal antibody (mAb; CA12.10C12) protein dose for (211)At-radioimmunotherapy, extending the analysis to include intraorgan (211)At activity distribution and α-imaging-based small-scale dosimetry, along with immunohistochemical staining. METHODS Eight normal dogs were injected with either a 0.75 (n = 5) or 1.00 (n = 3) mg/kg dose of (211)At-B10-CA12.10C12 (11.5-27.6 MBq/kg). Two were euthanized and necropsied 19-22 h after injection, and 6 received autologous HCT 3 d after (211)At-radioimmunotherapy, after lymph node and bone marrow biopsies at 2-4 and/or 19 h after injection. Blood was sampled to study toxicity and clearance; CD45 targeting was evaluated by flow cytometry. (211)At localization and small-scale dosimetry were assessed using two α-imaging systems: an α-camera and an ionizing-radiation quantum imaging detector (iQID) camera. RESULTS (211)At uptake was highest in the spleen (0.31-0.61% injected activity [%IA]/g), lymph nodes (0.02-0.16 %IA/g), liver (0.11-0.12 %IA/g), and marrow (0.06-0.08 %IA/g). Lymphocytes in blood and marrow were efficiently targeted using either mAb dose. Lymph nodes remained unsaturated but displayed targeted (211)At localization in T lymphocyte-rich areas. Absorbed doses to blood, marrow, and lymph nodes were estimated at 3.1, 2.4, and 3.4 Gy/166 MBq, respectively. All transplanted dogs experienced transient hepatic toxicity. Liver enzyme levels were temporarily elevated in 5 of 6 dogs; one treated with 1.00 mg mAb/kg developed ascites and was euthanized 136 d after HCT. CONCLUSION (211)At-anti-CD45 radioimmunotherapy with 0.75 mg mAb/kg efficiently targeted blood and marrow without severe toxicity. Dosimetry calculations and observed radiation-induced effects indicated that sufficient (211)At-B10-CA12.10C12 localization was achieved for efficient conditioning for HCT.
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Affiliation(s)
- Sofia H L Frost
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Brian W Miller
- Pacific Northwest National Laboratory, Richland, Washington College of Optical Sciences, University of Arizona, Tucson, Arizona
| | - Tom A Bäck
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Erlinda B Santos
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Donald K Hamlin
- Department of Radiation Oncology, University of Washington, Seattle, Washington
| | - Sue E Knoblaugh
- Comparative Medicine Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, Washington; and
| | - Shani L Frayo
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Aimee L Kenoyer
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Rainer Storb
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington Department of Medicine, University of Washington, Seattle, Washington
| | - Oliver W Press
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington Department of Medicine, University of Washington, Seattle, Washington
| | - D Scott Wilbur
- Department of Radiation Oncology, University of Washington, Seattle, Washington
| | - John M Pagel
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington Department of Medicine, University of Washington, Seattle, Washington
| | - Brenda M Sandmaier
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington Department of Medicine, University of Washington, Seattle, Washington
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Park J, Wicki J, Knoblaugh SE, Chamberlain JS, Lee D. Multi-parametric MRI at 14T for muscular dystrophy mice treated with AAV vector-mediated gene therapy. PLoS One 2015; 10:e0124914. [PMID: 25856443 PMCID: PMC4391935 DOI: 10.1371/journal.pone.0124914] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 03/11/2015] [Indexed: 01/22/2023] Open
Abstract
The objective of this study was to investigate the efficacy of using quantitative magnetic resonance imaging (MRI) as a non-invasive tool for the monitoring of gene therapy for muscular dystrophy. The clinical investigations for this family of diseases often involve surgical biopsy which limits the amount of information that can be obtained due to the invasive nature of the procedure. Thus, other non-invasive tools may provide more opportunities for disease assessment and treatment responses. In order to explore this, dystrophic mdx4cv mice were systemically treated with a recombinant adeno-associated viral (AAV) vector containing a codon-optimized micro-dystrophin gene. Multi-parametric MRI of T2, magnetization transfer, and diffusion effects alongside 3-D volume measurements were then utilized to monitor disease/treatment progression. Mice were imaged at 10 weeks of age for pre-treatment, then again post-treatment at 8, 16, and 24 week time points. The efficacy of treatment was assessed by physiological assays for improvements in function and quantification of expression. Tissues from the hindlimbs were collected for histological analysis after the final time point for comparison with MRI results. We found that introduction of the micro-dystrophin gene restored some aspects of normal muscle histology and pathology such as decreased necrosis and resistance to contraction-induced injury. T2 relaxation values showed percentage decreases across all muscle types measured (tibialis anterior, gastrocnemius, and soleus) when treated groups were compared to untreated groups. Additionally, the differences between groups were statistically significant for the tibialis anterior as well. The diffusion measurements showed a wider range of percentage changes and less statistical significance while the magnetization transfer effect measurements showed minimal change. MR images displayed hyper-intense regions of muscle that correlated with muscle pathology in histological sections. T2 relaxation, alongside diffusion and magnetization transfer effects provides useful data towards the goal of non-invasively monitoring the treatment of muscular dystrophy.
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Affiliation(s)
- Joshua Park
- Department of Radiology, University of Washington, Seattle, Washington, United States of America
| | - Jacqueline Wicki
- Department of Neurology, University of Washington, Seattle, Washington, United States of America
| | - Sue E. Knoblaugh
- Comparative Medicine Shared Resources, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Jeffrey S. Chamberlain
- Department of Neurology, University of Washington, Seattle, Washington, United States of America
- Department of Biochemistry, University of Washington, Seattle, Washington, United States of America
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
| | - Donghoon Lee
- Department of Radiology, University of Washington, Seattle, Washington, United States of America
- * E-mail:
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20
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Knoblaugh SE. Book Review: Mouse Models of Cancer: A Laboratory Manual. Vet Pathol 2015. [DOI: 10.1177/0300985814566403] [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: 11/16/2022]
Affiliation(s)
- Sue E. Knoblaugh
- Comparative Medicine, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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Jhingran A, Kasahara S, Shepardson KM, Junecko BAF, Heung LJ, Kumasaka DK, Knoblaugh SE, Lin X, Kazmierczak BI, Reinhart TA, Cramer RA, Hohl TM. Compartment-specific and sequential role of MyD88 and CARD9 in chemokine induction and innate defense during respiratory fungal infection. PLoS Pathog 2015; 11:e1004589. [PMID: 25621893 PMCID: PMC4306481 DOI: 10.1371/journal.ppat.1004589] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 11/24/2014] [Indexed: 12/17/2022] Open
Abstract
Aspergillus fumigatus forms ubiquitous airborne conidia that humans inhale on a daily basis. Although respiratory fungal infection activates the adaptor proteins CARD9 and MyD88 via C-type lectin, Toll-like, and interleukin-1 family receptor signals, defining the temporal and spatial pattern of MyD88- and CARD9-coupled signals in immune activation and fungal clearance has been difficult to achieve. Herein, we demonstrate that MyD88 and CARD9 act in two discrete phases and in two cellular compartments to direct chemokine- and neutrophil-dependent host defense. The first phase depends on MyD88 signaling because genetic deletion of MyD88 leads to delayed induction of the neutrophil chemokines CXCL1 and CXCL5, delayed neutrophil lung trafficking, and fatal pulmonary damage at the onset of respiratory fungal infection. MyD88 expression in lung epithelial cells restores rapid chemokine induction and neutrophil recruitment via interleukin-1 receptor signaling. Exogenous CXCL1 administration reverses murine mortality in MyD88-deficient mice. The second phase depends predominately on CARD9 signaling because genetic deletion of CARD9 in radiosensitive hematopoietic cells interrupts CXCL1 and CXCL2 production and lung neutrophil recruitment beyond the initial MyD88-dependent phase. Using a CXCL2 reporter mouse, we show that lung-infiltrating neutrophils represent the major cellular source of CXCL2 during CARD9-dependent recruitment. Although neutrophil-intrinsic MyD88 and CARD9 function are dispensable for neutrophil conidial uptake and killing in the lung, global deletion of both adaptor proteins triggers rapidly progressive invasive disease when mice are challenged with an inoculum that is sub-lethal for single adapter protein knockout mice. Our findings demonstrate that distinct signal transduction pathways in the respiratory epithelium and hematopoietic compartment partially overlap to ensure optimal chemokine induction, neutrophil recruitment, and fungal clearance within the respiratory tract. Our understanding of how epithelial and hematopoietic cells in the lung coordinate immunity against inhaled fungal conidia (spores) remains limited. The mold Aspergillus fumigatus is a major cause of infectious mortality in immune compromised patients. Host defense against A. fumigatus involves the activation of two host signal transducers, MyD88 and CARD9, leading to neutrophil recruitment to the infection site. In this study, we define how MyD88- and CARD9-coupled signals operate in epithelial and hematopoietic compartments to regulate neutrophil-mediated defense against A. fumigatus. Our studies support a two-stage model in which MyD88 activation in epithelial cells, via the interleukin-1 receptor, supports the rapid induction of neutrophil-recruiting chemokines. This process is essential for the first phase of neutrophil recruitment. Mortality observed in MyD88-deficient mice can be significantly reversed by administration of a chemokine termed CXCL1 to infected airways. The second phase of neutrophil recruitment is initiated by CARD9 signaling in hematopoietic cells. Loss of both phases of chemokine induction and neutrophil recruitment dramatically increases murine susceptibility to tissue-invasive disease. In sum, our study defines a temporal sequence of events, initiated by interleukin-1 receptor/MyD88 signaling in the pulmonary epithelium and propagated by CARD9 signaling in hematopoietic cells, that induces protective immunity against inhaled fungal conidia.
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Affiliation(s)
- Anupam Jhingran
- Infectious Disease Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America
| | - Shinji Kasahara
- Infectious Disease Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America
| | - Kelly M Shepardson
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth University, Hanover, New Hampshire, United States of America
| | - Beth A Fallert Junecko
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Lena J Heung
- Infectious Disease Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America
| | - Debra K Kumasaka
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Sue E Knoblaugh
- Comparative Medicine Shared Resources, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Xin Lin
- Department of Molecular and Cellular Oncology, University of Texas, MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Barbara I Kazmierczak
- Department of Medicine and Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Todd A Reinhart
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Robert A Cramer
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth University, Hanover, New Hampshire, United States of America
| | - Tobias M Hohl
- Infectious Disease Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America; Immunology Program, Sloan-Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America
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22
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Ngo LY, Kasahara S, Kumasaka DK, Knoblaugh SE, Jhingran A, Hohl TM. Inflammatory monocytes mediate early and organ-specific innate defense during systemic candidiasis. J Infect Dis 2013; 209:109-19. [PMID: 23922372 DOI: 10.1093/infdis/jit413] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [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: 12/20/2022] Open
Abstract
Candida albicans is a commensal fungus that can cause systemic disease in patients with breaches in mucosal integrity, indwelling catheters, and defects in phagocyte function. Although circulating human and murine monocytes bind C. albicans and promote inflammation, it remains unclear whether C-C chemokine receptor 2 (CCR2)- and Ly6C-expressing inflammatory monocytes exert a protective or a deleterious function during systemic infection. During murine systemic candidiasis, interruption of CCR2-dependent inflammatory monocyte trafficking into infected kidneys impaired fungal clearance and decreased murine survival. Depletion of CCR2-expressing cells led to uncontrolled fungal growth in the kidneys and brain and demonstrated an essential antifungal role for inflammatory monocytes and their tissue-resident derivatives in the first 48 hours postinfection. Adoptive transfer of purified inflammatory monocytes in depleted hosts reversed the defect in fungal clearance to a substantial extent, indicating a compartmentally and temporally restricted protective function that can be transferred to enhance systemic innate antifungal immunity.
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Affiliation(s)
- Lisa Y Ngo
- Vaccine and Infectious Diseases Division
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23
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Morris SM, Baek JY, Koszarek A, Kanngurn S, Knoblaugh SE, Grady WM. Transforming growth factor-beta signaling promotes hepatocarcinogenesis induced by p53 loss. Hepatology 2012; 55:121-31. [PMID: 21898503 PMCID: PMC3237853 DOI: 10.1002/hep.24653] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Accepted: 08/22/2011] [Indexed: 12/25/2022]
Abstract
UNLABELLED Hepatocellular carcinoma (HCC) results from the accumulation of deregulated tumor suppressor genes and/or oncogenes in hepatocytes. Inactivation of TP53 and inhibition of transforming growth factor-beta (TGF-β) signaling are among the most common molecular events in human liver cancers. Thus, we assessed whether inactivation of TGF-β signaling, by deletion of the TGF-β receptor, type II (Tgfbr2), cooperates with Trp53 loss to drive HCC formation. Albumin-cre transgenic mice were crossed with floxed Trp53 and/or floxed Tgfbr2 mice to generate mice lacking p53 and/or Tgfbr2 in the liver. Deletion of Trp53 alone (Trp53(KO) ) resulted in liver tumors in approximately 41% of mice by 10 months of age, whereas inactivation of Tgfbr2 alone (Tgfbr2(KO) ) did not induce liver tumors. Surprisingly, deletion of Tgfbr2 in the setting of p53 loss (Trp53(KO) ;Tgfbr2(KO) ) decreased the frequency of mice with liver tumors to around 17% and delayed the age of tumor onset. Interestingly, Trp53(KO) and Trp53(KO) ;Tgfbr2(KO) mice develop both HCC and cholangiocarcinomas, suggesting that loss of p53, independent of TGF-β, may affect liver tumor formation through effects on a common liver stem cell population. Assessment of potential mechanisms through which TGF-β signaling may promote liver tumor formation in the setting of p53 loss revealed a subset of Trp53(KO) tumors that express increased levels of alpha-fetoprotein. Furthermore, tumors from Trp53(KO) mice express increased TGF-β1 levels compared with tumors from Trp53(KO) ;Tgfbr2(KO) mice. Increased phosphorylated Smad3 and ERK1/2 expression was also detected in the tumors from Trp53(KO) mice and correlated with increased expression of the TGF-β responsive genes, Pai1 and Ctgf. CONCLUSION TGF-β signaling paradoxically promotes the formation of liver tumors that arise in the setting of p53 inactivation.
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Affiliation(s)
- Shelli M. Morris
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109 USA
| | - Ji Yeon Baek
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109 USA
,Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea
| | - Amanda Koszarek
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109 USA
| | - Samornmas Kanngurn
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109 USA
,Department of Pathology, Prince of Songkla University, Hat Yai, Thailand
| | - Sue E. Knoblaugh
- Animal Health Resources, Fred Hutchinson Cancer Research Center, Seattle, WA 98109 USA
| | - William M. Grady
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109 USA
,Department of Medicine, University of Washington Medical School, Seattle, WA 98195 USA
,Corresponding Author: William M. Grady, MD, Fred Hutchinson Cancer Research Center, Clinical Research Division, 1100 Fairview Ave. N, Mailstop D4-100, Seattle, WA 98109-1024, Phone: 206-667-1107, Fax: 206-667-2917,
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24
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Morris SM, Baek JY, Koszarek A, Kanngurn S, Knoblaugh SE, Grady WM. Transforming growth factor-beta signaling promotes hepatocarcinogenesis induced by p53 loss. Hepatology 2011. [PMID: 21898503 DOI: 10.1002/hep.2465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
UNLABELLED Hepatocellular carcinoma (HCC) results from the accumulation of deregulated tumor suppressor genes and/or oncogenes in hepatocytes. Inactivation of TP53 and inhibition of transforming growth factor-beta (TGF-β) signaling are among the most common molecular events in human liver cancers. Thus, we assessed whether inactivation of TGF-β signaling, by deletion of the TGF-β receptor, type II (Tgfbr2), cooperates with Trp53 loss to drive HCC formation. Albumin-cre transgenic mice were crossed with floxed Trp53 and/or floxed Tgfbr2 mice to generate mice lacking p53 and/or Tgfbr2 in the liver. Deletion of Trp53 alone (Trp53(KO) ) resulted in liver tumors in approximately 41% of mice by 10 months of age, whereas inactivation of Tgfbr2 alone (Tgfbr2(KO) ) did not induce liver tumors. Surprisingly, deletion of Tgfbr2 in the setting of p53 loss (Trp53(KO) ;Tgfbr2(KO) ) decreased the frequency of mice with liver tumors to around 17% and delayed the age of tumor onset. Interestingly, Trp53(KO) and Trp53(KO) ;Tgfbr2(KO) mice develop both HCC and cholangiocarcinomas, suggesting that loss of p53, independent of TGF-β, may affect liver tumor formation through effects on a common liver stem cell population. Assessment of potential mechanisms through which TGF-β signaling may promote liver tumor formation in the setting of p53 loss revealed a subset of Trp53(KO) tumors that express increased levels of alpha-fetoprotein. Furthermore, tumors from Trp53(KO) mice express increased TGF-β1 levels compared with tumors from Trp53(KO) ;Tgfbr2(KO) mice. Increased phosphorylated Smad3 and ERK1/2 expression was also detected in the tumors from Trp53(KO) mice and correlated with increased expression of the TGF-β responsive genes, Pai1 and Ctgf. CONCLUSION TGF-β signaling paradoxically promotes the formation of liver tumors that arise in the setting of p53 inactivation.
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Affiliation(s)
- Shelli M Morris
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109-1024, USA
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Morris SM, Baek JY, Koszarek A, Kanngurn S, Knoblaugh SE, Grady WM. Abstract 2415: TGF-ß signaling inactivation inhibits the formation of hepatocellular carcinomas induced by loss of p53. Cancer Res 2011. [DOI: 10.1158/1538-7445.am2011-2415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Hepatocellular carcinoma (HCC) is one of the most deadly forms of cancer and results from the accumulation of mutated or altered tumor suppressor genes and/or oncogenes. The tumor suppressor and oncogenes commonly affected include growth factors, receptors and downstream signaling components. Inactivation of the TGF-ß signaling pathway and mutation of TP53, the gene for p53, are common in HCCs suggesting they may cooperate in HCC formation. Thus, we assessed whether inactivation of TGF-ß signaling, by deletion of the TGF-ß receptor type II, TGFBR2, affects the formation of HCCs arising secondary to loss of p53.
Aim: To determine if loss of TGFBR2 and p53 cooperate in vivo to affect HCC formation.
Methods and Results: Albumin-cre (Alb-Cre) transgenic mice were crossed with mice homozygous for floxed Tgfbr2 (Tgfbr2flx/flx) and/or floxed Trp53 (Trp53flx/flx) to generate mice lacking TGFBR2 and/or p53 in the liver. Deletion of Tgfbr2 alone did not induce liver tumors, while inactivation of both Tgfbr2 and Trp53 resulted in a subset of mice (19%) that developed liver tumors by 65 weeks of age. Surprisingly, deletion of p53 alone, in the context of intact TGF-ß receptors, resulted in an increased number of mice developing tumors (38%), as well as increased morbidity (42 weeks of age). Interestingly, in both genotypes, Alb-Cre;Trp53flx/flx;Tgfbr2flx/flx and Alb-Cre;Trp53flx/flx;Tgfbr2wt/wt, the mice develop both hepatocellular carcinomas (HCC) and cholangiocarcinomas (CC), suggesting these tumors originate from a common liver stem cell population. Quantitative RT-PCR analysis of tumor and non-tumor tissue demonstrated a subset of Alb-Cre;Trp53flx/flx;Tgfbr2wt/wt (p53 null) tumors express significantly increased levels of alpha-fetoprotein mRNA, a clinical marker for HCC. Additionally, tumors from the Alb-Cre;Trp53flx/flx;Tgfbr2wt/wt displayed increased TGFβ-1 protein levels as compared to tumors from Trp53 and Tgfbr2 null mice. Furthermore, increased phosphorylated ERK1/2 expression was also present in the tumors from the p53 null mice and correlated with a slight up-regulation in beta-catenin expression, another common molecular event observed in human HCC.
Conclusions: The Alb-Cre;Trp53flx/flx;Tgfbr2flx/flx mouse model recapitulates many molecular features of human HCC and demonstrates that TGF-ß signaling is oncogenic in the setting of loss of p53 in the liver.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr 2415. doi:10.1158/1538-7445.AM2011-2415
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Affiliation(s)
| | - Ji Yeon Baek
- 1Fred Hutchinson Cancer Research Center, Seattle, WA
| | | | - Samornmas Kanngurn
- 2Prince of Songkla University, Department of Pathology, Hatyai, Thailand
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Goodman AG, Fornek JL, Medigeshi GR, Perrone LA, Peng X, Dyer MD, Proll SC, Knoblaugh SE, Carter VS, Korth MJ, Nelson JA, Tumpey TM, Katze MG. P58(IPK): a novel "CIHD" member of the host innate defense response against pathogenic virus infection. PLoS Pathog 2009; 5:e1000438. [PMID: 19461876 PMCID: PMC2677460 DOI: 10.1371/journal.ppat.1000438] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Accepted: 04/21/2009] [Indexed: 12/26/2022] Open
Abstract
To support their replication, viruses take advantage of numerous cellular factors and processes. Recent large-scale screens have identified hundreds of such factors, yet little is known about how viruses exploit any of these. Influenza virus infection post-translationally activates P58(IPK), a cellular inhibitor of the interferon-induced, dsRNA-activated eIF2alpha kinase, PKR. Here, we report that infection of P58(IPK) knockout mice with influenza virus resulted in increased lung pathology, immune cell apoptosis, PKR activation, and mortality. Analysis of lung transcriptional profiles, including those induced by the reconstructed 1918 pandemic virus, revealed increased expression of genes associated with the cell death, immune, and inflammatory responses. These experiments represent the first use of a mammalian infection model to demonstrate the role of P58(IPK) in the antiviral response. Our results suggest that P58(IPK) represents a new class of molecule, a cellular inhibitor of the host defense (CIHD), as P58(IPK) is activated during virus infection to inhibit virus-induced apoptosis and inflammation to prolong host survival, even while prolonging viral replication.
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Affiliation(s)
- Alan G. Goodman
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
- Graduate Program in Bioengineering, University of Washington, Seattle, Washington, United States of America
| | - Jamie L. Fornek
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
| | - Guruprasad R. Medigeshi
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Beaverton, Oregon, United States of America
| | - Lucy A. Perrone
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Xinxia Peng
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
| | - Matthew D. Dyer
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
| | - Sean C. Proll
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
| | - Sue E. Knoblaugh
- Animal Health Shared Resources, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Victoria S. Carter
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
| | - Marcus J. Korth
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
| | - Jay A. Nelson
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Beaverton, Oregon, United States of America
| | - Terrence M. Tumpey
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Michael G. Katze
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
- Washington National Primate Research Center, Seattle, Washington, United States of America
- * E-mail:
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Treuting PM, Linford NJ, Knoblaugh SE, Emond MJ, Morton JF, Martin GM, Rabinovitch PS, Ladiges WC. Reduction of age-associated pathology in old mice by overexpression of catalase in mitochondria. J Gerontol A Biol Sci Med Sci 2008; 63:813-22. [PMID: 18772469 DOI: 10.1093/gerona/63.8.813] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We describe the effects of mitochondrially targeted catalase (MCAT) expression on end-of-life pathology in mice using detailed semiquantitative histopathological evaluation. We previously reported that the median and maximum life spans of MCAT mice were extended relative to those of wild-type littermates. We now report that MCAT expression is associated with reduced malignant nonhematopoietic tumor burden, reduced cardiac lesions, and a trend toward reduced systemic inflammation, with no effect on hematopoietic neoplasia or glomerulonephropathy. Combined disease burden and comorbidity are also reduced, and MCAT expression is not associated with any detrimental clinical effects. The results suggest that oxidative damage is involved in aging of C57BL/6J mice via modulation of a subset of age-associated lesions. Antioxidant interventions targeting mitochondria may therefore be a viable strategy for prevention or postponement of some age-associated diseases. The variability of the MCAT effect across tissues, however, illustrates the importance of developing semiquantitative histopathology for assessment of comorbidity in life-span studies.
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Affiliation(s)
- Piper M Treuting
- Department of Comparative Medicine, University of Washington, Seattle, WA 98195-7190, USA.
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Sutherland BW, Knoblaugh SE, Kaplan-Lefko PJ, Wang F, Holzenberger M, Greenberg NM. Conditional Deletion of Insulin-like Growth Factor-I Receptor in Prostate Epithelium. Cancer Res 2008; 68:3495-504. [DOI: 10.1158/0008-5472.can-07-6531] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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