Medical Specialties Commons^™

Standard Median Sternotomy Versus Minimally Invasive Approach For Atrial Septal Defect Closure In Adults, Ahmed S. Ali, Ahmed G. Abd El Fattah Fahmy, Hatem K. Madkour, Reham M. Salah Eldin Ahmed

Journal of Medicine in Scientific Research

Background

Atrial septal defects (ASDs) in adults and adolescents are not uncommon. Surgical ASD closure through a standard median sternotomy (SMS) has become less attractive approach in favor of minimally invasive techniques, especially in young female patients.

Objective

The aim was to compare early postoperative outcomes of surgically closed secundum ASDs through a SMS approach versus minimally invasive right anterolateral thoracotomy (MIRAT) approach in adults.

Patients and methods

The authors prospectively studied 60 adult patients who had their secundum ASD anomalies surgically closed at National Heart Institute between the period of September 2020 and February 2022. A total of 30 …

Molecular Detection Of Entamoeba Histolytica In Diarrheic Fecal Samples From Patients Attending National Hepatology And Tropical Medicine Research Institute, Azza Hasan Abbas, El Shahat Ahmed Elshahat, Heba Mohamed Abdelglil

Journal of Medicine in Scientific Research

Background: Amoebiasis is a worldwide disease caused by Entamoeba histolytica infection. The true prevalence is unknown due to the difficulty in distinguishing Entamoeba histolytica from non-pathogenic amoebas especially when microscopic diagnosis is performed, to overcome microscopy misidentification. Polymerase Chain Reaction (PCR) assay is necessary as a highly sensitive and specific technique. Objective: To determine the value of Real-Time PCR (RT.PCR) in the diagnosis of Entamoeba histolytica in the stool samples of diarrheic patients attending NHTMI versus microscopy, copro- antigen, and serum antibodies detection techniques. Subjects and Methods: A cross-sectional study was conducted on 150 diarrheic patients. Their stool samples were …

The Immune Response To Long Term Administration Of Dipravan Compare To Dormicum In Surgical Care Unit, Ashraf Abd El Hameed Soliman, Wael Abd Elateif El Hakeem, Raghad S. Abdellatif

Journal of Medicine in Scientific Research

Introduction : - Immune response may be affected by anesthesia and sedation. In anesthesia, the immue response is temporary as anesthesia is used for short time. However, the immune response more obvious in critical illness patients because of long time of sedation. Diprivan and dormicum are two commonly used medications for sedation and analgesia in critical care unit patients. Dipravan is a good medication for sedation in the surgical care unit. Dormicum in the surgical care unit, usually producing prolonged time of sedation when used for long time in surgical care unit. Patients and methods: - This article was done …

The Relation Between Heart Rate Response During Exercise And Angiographic Severity In Patients With Chronic Coronary Syndrome, Emmanuel Louka

Journal of Medicine in Scientific Research

Introduction Ellestad and colleagues, in 1975, reached to the conclusion that impaired heart rate response to exercise carries a similar risk for future coronary events such as ischemic ‘ST’ segment changes. Mc Neer and colleagues went beyond these observations to include a survival benefit in patients who achieve a higher peak heart rate (PHR), a more advanced level of exercise, and have a normal exercise electrocardiogram. Aim The aim of this work is to clarify the relation between the chronotropic response to exercise and the severity of coronary artery disease in patients with chronic coronary syndrome. Patients and methods The …

Dental And Oral Manifestations Of Rheumatoid Arthritis: Is It Related To General Disease Activity?, Omnia A. Abubakr, Ali M Youssef, Mohamed A Mohamed, Mohamed A Hamdy

Journal of Medicine in Scientific Research

Background: RA is a chronic immune-mediated systemic disorder; its pathogenesis is complex. Genetic, environmental, hormonal, and lifestyle are the main risk factors. The correlation between oral health and RA is rising. Oral manifestations in RA include temporomandibular joint disorder, secondary Sjögren’s syndrome, xerostomia, and periodontal disease. Previous studies suggest a bidirectional relationship between RA and periodontal diseases. This study aims to detect oral mucosal and dental disease in RA patients and its relation to demographic features, disease activity, and extra-articular manifestation. Patients and Methods: This cross-sectional study included 150 patients with RA allocated into two groups, 75 patients in each …

Comparative Study Between Intravenous Anesthesia (Propofol) And Inhalational Anesthesia (Sevoflurane) On The Cytokine’S Response To Abdominal Operation, Ashraf A.H. Mahmoud Soliman, Maisa M. Abdel Khalik, Wael A.E. El Hakeem, Raghad S. Abdellatif

Journal of Medicine in Scientific Research

Introduction These days, the need for more information and familiarity with the inflammatory response to different anesthetic drugs increase. Not only some patients suffering from immune reactions against some anesthetic drugs, but all surgical patients are liable to decrease in immunity postoperatively. This may increase the postoperative morbidity and mortality, affects healing, and spread of tumors postoperatively. This decrease in immunity is due to surgery trauma causing imbalance in cytokine response. Patients and methods This article was written on 40 patients, and patients were randomly classified into four equal classes. Class A: inhalational anesthesia on major operation. Class B: intravenous …

Angiotensin I-Converting Enzyme Insertion/Deletion Gene Polymorphism And Its Association With Diabetic Nephropathy In Type-2 Diabetes Mellitus Patients: An Egyptian Study, Yasmine M. Amrousy, Tamer M. Soliman, Haythem A. Tolba, Aisha Elshimy

Journal of Medicine in Scientific Research

Background Diabetic nephropathy (DN) is one of the most serious complications associated with type-2 diabetes mellitus (T2DM). With variable allele and genotype frequencies, the angiotensin I-converting enzyme (ACE) insertion–deletion (I/D) gene polymorphism has been suggested as a risk factor for DN. Objective The purpose of the study was to find whether ACE I/D polymorphism is associated with DN in Egyptian T2DM patients and its relation to ACE concentration and C-reactive protein quantitative level. Participants and methods A case–control study of 98 T2DM patients was divided into two groups: group 1, T2DM patients without DN, and group 2, T2DM patients with …

Effectiveness Of Management Program Of Chronic Functional Constipation In Children Who Are Attending The Pediatric Gastroenterology Clinic At Elbeheira Specialized Children's Hospital, Hamouda E. El-Gazzar, Sabreen Ahmed Ali Elsaka, Eman Adel Elsaid Elhaddad

Journal of Medicine in Scientific Research

Background: A chronic constipation is one of the most common functional gastrointestinal complaints in pediatric outpatient clinics. The prevalence of childhood constipation in the general population ranges widely from 0.7% to 29.6% internationally. Pediatric Gastroenterology Clinic at Elbeheira specialized children's Hospital is a referral center from the whole governorate. Objectives: To evaluate the current approach to management, risk factors associated, and clinical characteristics, the challenge of functional constipation in the pediatrics who are attending the Pediatric Gastroenterology Clinic at Elbeheira Specialized Children's Hospital. Methods: This retrospective study was conducted in Pediatric Gastroenterology Clinic at Elbeheira Children's Specialized Hospital for 6 …

Endovascular Management Of Vein Of Galen Aneurysmal Malformations: Case Series And Review Of The Literature, Mohammed A. El-Din Habiba, Sameh M. Saleh

Journal of Medicine in Scientific Research

Background Neonates with vein of Galen aneurysmal malformations (VGAMs) who present with heart failure have a high rate of morbidity and mortality, while those who present later in childhood have considerably better outcomes. Aim To determine the factors that have the greatest predictive value in predicting long-term results in children with VGAM. Patients and methods Between June 2015 and June 2020, 15 patients (seven infants, eight children) were diagnosed with symptomatic VGAMs, four of whom were suffering from intractable high-output heart failure and received initial endovascular treatment. All of them were treated by endovascular procedures. Staged transarterial route was the …

Different Modalities Of Tongue Tie Management, Wesam Ibrahem Homouda, Esayed Hussien Elmokadem, Mohamed Amr Hamdy Salem

Journal of Medicine in Scientific Research

Background: Tongue-tie or ‘ankyloglossia’ is a congenital anomaly characterized by presence of an abnormally tight lingual frenulum - a string like membrane – that attaches the tongue to the floor of the mouth. It affects the movement of the tongue. For symptomatizing ankyloglossia surgical treatment with different surgical techniques such as (Frenotomy, frenectomy/frenulectomy, and frenuloplasty) is the treatment of choice that gives satisfactory results. Objectives: We built our study to compare between different surgical techniques used for management of ankyloglossia. Patient and method: in our study 60 patients were included 33 were female and 27 were male with age ranging …

A Case Of Congenital Diaphragmatic Hernia Presenting In The Adult As Gastric Volvulus, Sajal Gupta, Ismail Khan, Indu B. Dubey, Mayank Verma

Journal of Medicine in Scientific Research

We report a case of an adult patient who was referred to the surgical emergency for the evaluation of acute abdominal pain and vomiting. Radiograph chest showed a left-sided cavity, which was misleading to lung pathology. A suspicion of gastric volvulus was kept in mind on seeing the stomach in the radiograph. Computed tomography confirmed the diagnosis of diaphragmatic hernia. The insertion of the Ryle’s tube corrected the gastric volvulus. An immediate laparotomy was done for the closure of the diaphragmatic gap and reduction of the herniated contents. The patient responded well and was discharged in a week.

Complete Dorsal Pancreatic Agenesis: A Case Report, Ritish Gupta, Ashima Mittal, Bhavna Arora, Riya Aggarwal

Journal of Medicine in Scientific Research

Complete agenesis of the dorsal pancreas (ADP), an extremely rare congenital anomaly, is caused as ‘the dorsal pancreatic bud fails in developing the body and tail of the pancreas at the time of embryological development.’ There are nearly 100 cases of dorsal pancreatic agenesis till date. Most of the individuals with ADP are without symptoms; however, few may present with clinical manifestations like pancreatitis, epigastric pain, hyperglycemia, and diabetes mellitus. This is a case report of a 19-year-old female with ADP, who was diagnosed incidentally while undergoing radiological assessment for abdominal pain in left hypochondrium. As complete ADP is very …

Prevalence Of Upper Limb Musculoskeletal Abnormalities In Type 2 Diabetic Patients And Its Relation To Glycemic Control And Associated Factors, Eslam Elsayed Ali Shohda, Amal Emam El-Maghraby, Hadeer Khaled Youssef Elhamid

Journal of Medicine in Scientific Research

Aim of the study: to investigate the prevalence of upper limb musculoskeletal abnormalities and their correlations to glycemic control and associated factors. Methods: A cross-sectional study was conducted at diabetes unit and internal medicine outpatient clinic at Al-ahrar teaching hospital, Zagazig, Egypt. 200 type 2 diabetic patient (T2DM) and 200 non-diabetic control patients of ages > 18 years were enrolled. Rheumatological diseases were excluded. Studied upper limb musculoskeletal abnormalities were Limited joint mobility (LJM), Dupuytren’s contracture (DC), Trigger finger (TF), De Quervain’s tenosynovitis (DQT), Lateral epicondylitis (LE), Medial epicondylitis (ME), Rotator’s cuff tendinitis (RCT) and Carpel tunnel syndrome susceptibility diagnosed by …

Assessment Of Carotid Intima-Media Thickness And Its Relation To Cardiovascular Risk Factors In Obese Children, Faten A.A. Fathi, Somaya M. Abd El Ghany, Ahmed A.H. Taha, Gihan F.A. Hassan, Eman Fouad

Journal of Medicine in Scientific Research

Background Childhood obesity is one of the most critical public health problems today. This study aims to assess the relation between carotid intima-media thickness (CIMT) and cardiovascular risk factors in obese children. Patients and methods This is a case–control study conducted on 80 Egyptian children aged 6–18 years; 40 children with simple obesity as defined by WHO (2011) and 40 healthy children age matched and sex matched were taken as a control group. Cases were selected from the National Nutritional Institute randomly from December 2017 to March 2018. All patients and control groups were subjected to the following: full history …

Outcome Of A Case Of Living Donor Kidney Transplant With High Levels Of Pre-Transplant Donor Specific Antibodies, Ahmed Hassan Elthakaby, Aza Elmenyawi

Journal of Medicine in Scientific Research

For patients with ESRD, kidney transplant offers significant survival and quality-of-life advantages compared with dialysis. Non-sensitized renal transplant recipients when compared to patients with preformed alloantibodies, the latter are at greater risk of cellular, humeral rejection and premature graft failure. In this paper we will present a successful case of young adult who has ESRD and maintained on regular hemodialysis and undergo live related renal transplant with high dose HLA class I and class II antibodies and negative cross match by CDC and flow cytometry.

Oral Mucosal And Dental Affection In Patients With Systemic Lupus Erythematosus: A Clinical Survey, Omnia A Abubakr, Ali M Youssef, Mohamed A Mohamed, Mohamed A Hamdy

Journal of Medicine in Scientific Research

Background: SLE is a chronic autoimmune disease predominantly affecting young females. Systemic involvement along with variable clinical presentations characterizes SLE. Various oral and dental manifestations have been described in SLE that include oral ulcerations, candida infection, and periodontal disease. We aimed to detect oral mucosal and dental disease in SLE patients and its relation to demographic features, general disease activity, and the extra-articular manifestation. Patients and Methods: 80 patients with SLE were included in this cross-sectional study. Patients were allocated into 2 groups, 40 patients in each group, according to SLE disease control with immunosuppressive medications: group A included patients …

Repair Vs. Conservative Treatment For Ischemic Patients With A Moderate Degree Of Mitral Incompetence, Ahmed Shafeek Ali, Mohamed Belal Mohamed Abd Elbaki, Haitham Alshahat Ramadan, Reham Mohammed Salah Eldin Ahmed

Journal of Medicine in Scientific Research

Background: Ischemic heart diseases are often associated with a moderate degree of mitral incompetence. The optimal treatment of this condition is still controversial. benefits of repairing moderate mitral incompetence in ischemic patients are uncertain. Objectives: compare outcomes of treating ischemic patients with moderate mitral incompetence either by isolated CABG versus CABG with mitral repair. Patients and methods: We prospectively studied 60 consecutive ischemic patients with a moderate degree of mitral incompetence who were surgically treated at the National Heart Institute between the period of April 2021 to March 2022. 30 patients had isolated CABG surgery while the other 30 patients …

Studying The Therapeutic Effect Of Umbilical Cord Stem Cell In Pneumonia Caused By Covid-19, Salama M. El- Shennawy, Abdalla Abo Hassen, Talal Ibrahim Hagag, Asherf I Zahra, Reham Salama, Mariam A. Fouad

Journal of Medicine in Scientific Research

Context: Coronavirus disease (COVID-19) with severe respiratory morbidity and mortality , rapidly spread all over the world, caused by an sever acute respiratory syndrome coronavirus 2 (SARS-CoV-2) varying from mild symptoms to pulmonary fibrosis( Li Z et al.,2020). Mesenchymal stem cells (MSCs) can have a critical role, by promoting the pulmonary parenchyma regeneration and subsequently decreasing the symptoms of COVID-19 and help immune system to act against the virus (WHO, 2020).Aim: to evaluate the efficacy and safety of using stem cell in the treatment of COVID-19patients.Setting and design: We performed this case control study during the period from November 2020 …

Assessing Serum Ferritin Together With Some Inflammatory Biomarkers In Overweight And Obese Hospital Care Workers At Elgalaa Teaching Hospital And Its Correlation With Metabolic Syndrome, Sahar Mohamed Said Elbayoumi, Hanan Farouk, Heba Abdelaziz

Journal of Medicine in Scientific Research

Obesity is known to be associated with elevated levels of inflammatory markers. One of the major problems associated with morbidity and mortality. The aim of the study was to assess the posing effect of obesity on the levels of serum ferritin, total cholesterol, HDL and LDL, triglycerides, HBA1C, CRP, and Uric acid with CBC, on random well-being colleague females. Patient and methods: 100 adult female health workers were categorized into three entities according to both BMI and waist circumference, as normal, overweight, and obese. Results: increased serum ferritin as an inflammatory marker might correlate to BMI, in juniors; and might …

Efficacy Of Native T1 Mapping In Differentiation Between Viable And Non-Viable Myocardium In Chronic Ischemia, Diab Mahmoud S, Gad Azza A.H, Abdel Lattif Reda A, Mahrous Mary R

Journal of Medicine in Scientific Research

Background Myocardial ischemia may lead to reversible or irreversible myocardial insult. A precise assessment of myocardial viability (MV) is of clinical relevance to determine the recovery potential of the affected segments. Contrast enhanced cardiac magnetic resonance (CE-CMR) with late gadolinium (Gd) sequences is the gold standard method for MV assessment. Our study tasted the accuracy of segmental native T1 mapping (NT1M) imaging as a non-contrast technique for assessing MV. Methods: Forty-three patients with chronic myocardial ischemia underwent 1.5 T CMR. Imaging protocol includes cine images to assess left ventricular (LV) function, and (LGE) images to detect and estimate the extension …

The Effects Of Sex On Zebrafish Bone Metabolism, Simon Bagatto

Williams Honors College, Honors Research Projects

I investigated the effects of diet and sex on zebrafish bone metabolism. Zebrafish were subjected to either a high-calorie or low-calorie diet over a five-week period. After this diet, zebrafish scales were used to measure alkaline phosphatase (ALP) and tartrate-resistant acid phosphatase (TRAP) enzyme activity with a fluorescent substrate. The enzyme activities were markers of the osteoblasts (ALP) and the osteoclasts (TRAP). These data were compared among sex and diet of the zebrafish using a repeated measures ANOVA statistical test. I also measured the number of resorption lacunae per scale (another indicator of osteoclast activity). The results showed higher TRAP …

A Rare Case Of Covid Encephalitis In A Vaccinated Patient, Christian Pena, Hari Movva, Hector Arredondo, Alberto Pena, Erik Hinojosa, Michael Rotko, Jorge Nadal, Michelle Lopez

MEDI 9331 Scholarly Activities Clinical Years

Background and Purpose: SARS-CoV-2 infection is known to cause primarily respiratory symptoms, however, neurological disorders such as anosmia and stroke have been seen. Encephalitis is a rare complication of COVID-19 with a reported incidence of less than 1%¹. Most patients develop both COVID-19 symptoms and encephalitis symptoms during the same period¹. In addition, the majority of reports are from patients with no prior vaccination. Here, we present a case of encephalitis 2 weeks after mild COVID-19 in a fully vaccinated male.

Case Presentation: A 68-year-old Hispanic male was brought to the ED due to new onset gaze deviation, generalized tonic …

Fatty Acid Therapy And Implications For Spinal Cord Injury Treatment: A Literature Review, Philippe J. Dentino

MEDI 9331 Scholarly Activities Clinical Years

Introduction: Spinal Cord Injuries (SCI) are catastrophic injury to spinal neurons that cause a tremendous socioeconomic and public health burden on individuals globally. The role of fatty acids in treatment of SCI is not well understood and poorly standardized across treatment provision. This review seeks to explore the role of fatty acids in neurorecovery and propose emerging themes in SCI treatment with fatty acids.

Methods: A PICO was designed and online databases were searched for relevant articles. A total of 55 studies were deemed appropriate for the review and summarized into thematic elements including ) Cellular Transport 2) Neuroprotection 3) …

Predictive Digital Twin For Optimizing Patient-Specific Radiotherapy Regimens Under Uncertainty In High-Grade Gliomas, Anirban Chaudhuri, Graham Pash, David A Hormuth, Guillermo Lorenzo, Michael Kapteyn, Chengyue Wu, Ernesto A B F Lima, Thomas E Yankeelov, Karen Willcox

Faculty, Staff and Student Publications

We develop a methodology to create data-driven predictive digital twins for optimal risk-aware clinical decision-making. We illustrate the methodology as an enabler for an anticipatory personalized treatment that accounts for uncertainties in the underlying tumor biology in high-grade gliomas, where heterogeneity in the response to standard-of-care (SOC) radiotherapy contributes to sub-optimal patient outcomes. The digital twin is initialized through prior distributions derived from population-level clinical data in the literature for a mechanistic model's parameters. Then the digital twin is personalized using Bayesian model calibration for assimilating patient-specific magnetic resonance imaging data. The calibrated digital twin is used to propose optimal …

The Short- And Long-Term Readmission Of Four Major Categories Of Digestive System Cancers: Does Obesity Or Metabolic Disorder Matter?, Yan Li, Xiaoqin Wu, Yongfeng Song, Peipei Wang, Bofei Zhang, Bingzhou Guo, Ziwei Liu, Yafei Wu, Shanshan Shao, Yiping Cheng, Honglin Guo, Xiude Fan, Jiajun Zhao

Faculty, Staff and Student Publications

Purpose: Patients with digestive system cancers (DSCs) are at a high risk for hospitalizations; however, the risk factors for readmission remain unknown. Here, we established a retrospective cohort study to assess the association between metabolic obesity phenotypes and readmission risks of DSC.

Experimental design: A total of 142,753 and 74,566 patients at index hospitalization were ultimately selected from the Nationwide Readmissions Database (NRD) 2018 to establish the 30-day and 180-day readmission cohorts, respectively. The study population was classified into four groups: metabolically healthy non-obese (MHNO), metabolically healthy obese (MHO), metabolically unhealthy non-obese (MUNO), and metabolically unhealthy obese (MUO). Multivariate Cox …

Receptor-Interacting Protein 1 And 3 Kinase Activity Are Required For High-Fat Diet Induced Liver Injury In Mice, Xiaoqin Wu, Rakesh K Arya, Emily Huang, Megan R Mcmullen, Laura E Nagy

Faculty, Staff and Student Publications

BACKGROUND: The RIP1-RIP3-MLKL-mediated cell death pathway is associated with progression of non-alcohol-associated fatty liver/steatohepatitis (NAFL/NASH). Previous work identified a critical role for MLKL, the key effector regulating necroptosis, but not RIP3, in mediating high fat diet-induced liver injury in mice. RIP1 and RIP3 have active N-terminus kinase domains essential for activation of MLKL and subsequent necroptosis. However, little is known regarding domain-specific roles of RIP1/RIP3 kinase in liver diseases. Here, we hypothesized that RIP1/RIP3 kinase activity are required for the development of high fat diet-induced liver injury.

METHODS:Rip1K45A/K45A and Rip3K51A/K51A kinase-dead mice on a C57BL/6J background and their littermate …

Acute Myeloid Leukemia With Concurrent Npm1 And Runx1 Mutations, Zhuang Zuo, L Jeffrey Medeiros, C Cameron Yin

Faculty, Staff and Student Publications

NPM1 mutation, as a founding genetic event, cooperates with other gene mutations, such as DNMT3A and FLT3, to promote the development of acute myeloid leukemia. NPM1 mutation, however, has been reported to be mutually exclusive with RUNX1 mutation in acute myeloid leukemia cases. In this study, we analyzed mutation panel testing data from a relatively large cohort of rare AML cases with both NPM1 and RUNX1 mutations. We describe the dynamic process of the emergence of these mutations, as well as molecular genetic features and clinical outcome of these patients. We show that concurrence of both mutations in acute …

Integrated Clinical Genotype-Phenotype Characteristics Of Early T-Cell Precursor Acute Lymphoblastic Leukemia, Matthew T Ye, Yi Wang, Zhuang Zuo, Steliana Calin, Hua He, Zhenya Tang, Elias J Jabbour, Gautam Borthakur, Yizhuo Zhang, Yaling Yang, M James You

Faculty, Staff and Student Publications

Background: Early T-cell precursor acute lymphoblastic leukemia (ETP-ALL) is a distinct subtype of T-ALL with a unique immunophenotype and high treatment failure rate. The molecular genetic abnormalities and their prognostic impact in ETP-ALL patients are poorly understood.

Methods: The authors performed systematic analyses of the clinicopathologic features with an emphasis on molecular genetic aspects of 32 patients with ETP-ALL.

Results: The median age was 43 years (range, 16-71). The blasts were positive for cytoplasmic CD3 and CD7 and negative for CD1a and CD8. Other markers expressed included CD34 (88%), CD33 (72%), CD117 (68%), CD13 (58%), CD5 (partial, 56%), CD2 (38%), …

Revolutionizing Bone Regeneration: Advanced Biomaterials For Healing Compromised Bone Defects, Kamal Awad, Neelam Ahuja, Ahmed S Yacoub, Leticia Brotto, Simon Young, Antonios Mikos, Pranesh Aswath, Venu Varanasi

Faculty, Staff and Student Publications

In this review, we explore the application of novel biomaterial-based therapies specifically targeted towards craniofacial bone defects. The repair and regeneration of critical sized bone defects in the craniofacial region requires the use of bioactive materials to stabilize and expedite the healing process. However, the existing clinical approaches face challenges in effectively treating complex craniofacial bone defects, including issues such as oxidative stress, inflammation, and soft tissue loss. Given that a significant portion of individuals affected by traumatic bone defects in the craniofacial area belong to the aging population, there is an urgent need for innovative biomaterials to address the …

Ribonuclease 1 Enhances Antitumor Immunity Against Breast Cancer By Boosting T Cell Activation, Ying-Nai Wang, Heng-Huan Lee, Zhou Jiang, Li-Chuan Chan, Gabriel N Hortobagyi, Dihua Yu, Mien-Chie Hung

Faculty, Staff and Student Publications

The secretory enzyme human ribonuclease 1 (RNase1) is involved in innate immunity and anti-inflammation, achieving host defense and anti-cancer effects; however, whether RNase1 contributes to adaptive immune response in the tumor microenvironment (TME) remains unclear. Here, we established a syngeneic immunocompetent mouse model in breast cancer and demonstrated that ectopic RNase1 expression significantly inhibited tumor progression. Overall changes in immunological profiles in the mouse tumors were analyzed by mass cytometry and showed that the RNase1-expressing tumor cells significantly induced CD4+ Th1 and Th17 cells and natural killer cells and reduced granulocytic myeloid-derived suppressor cells, supporting that RNase1 favors an antitumor …