Allergy and Immunology Commons^™

Uncovering The Role Of Cancer Associated Fibroblasts In Tumor Immunosuppression, Kamal Amirneni, Kavitha Yaddanapudi

Posters-at-the-Capitol

Current advances in cancer immunotherapy are hindered by the immunosuppressive nature of the tumor microenvironment (TME). Cancer-associated fibroblasts (CAFs) are a key component of the TME that contribute to suppressing the immune response. Chemokines and cytokines released by CAFs, such as IL-6, attract circulating monocytes which are converted into myeloid-derived suppressor cells (MDSCs). MDSCs suppress T-cells and natural killer cell proliferation which inactivates the immune response and deters immunotherapy. Both Prostaglandin E₂ (PGE₂) and granulocyte-macrophage colony-stimulating factor (GM-CSF) have been implicated in the CAF immunosuppressive pathway, but a causal link has yet to be established. We hypothesized …

Does The Cdc Covid-19 Exposure Assessment Criteria For Healthcare Personnel Work In A Healthcare Setting In Pakistan?, Imran Hassan, Unab Khan, Shehreen Ali, Asif Hakim, Asad Ali

Department of Family Medicine

Objective: To evaluate the real-world performance of the CDC's "Interim US guidance for risk assessment and work restriction for healthcare personnel with exposure to COVID-19" at a private healthcare system in Pakistan.
Study design: Retrospective observational study.
Place and duration of study: The Aga khan University Hospital, Karachi, and its associated healthcare facilities in all four provinces of Pakistan, from February to September 2020.
Methodology: Healthcare personnel (HCPs) assessed and tested for exposures to COVID-19 were included in the study. An exposure category was assigned to each HCP presenting with exposure to COVID-19 based on the CDC criteria. Percentage positivity …

Diagnostic Accuracy Of Different Cut-Off Values Of Adenosine Deaminase Levels In Tuberculous Pleural Effusion, Kiran Iqbal Masood, Shayan Shahid, Kauser Jabeen, Joveria Farooqi, Sabeika Raza Kerawala, Muhammad Irfan

Department of Pathology and Laboratory Medicine

Objective: To assess the diagnostic accuracy of different cut-off values of pleural fluid adenosine deaminase levels as a diagnostic method for tuberculous pleural effusion.
Method: The prospective study was conducted from 2014 to 2016 at the Aga Khan University Hospital, Karachi, and comprised pleural fluid samples of adult patients with and without tuberculosis which were tested for adenosine deaminase levels, and divided into tuberculosis group A and non-tuberculosis group B. Sensitivity, specificity, negative predictive value and positive predictive value were calculated using different cut-offs. Data was analysed using IBM SPSS (Statistical Package for Social Sciences) version 21.0 (IBM Corp., Armonk, …

Agricultural Dust Derived Bacterial Extracellular Vesicle Mediated Inflammation Is Attenuated By Dha, Art J. Heires, Derrick R. Samuelson, Daniel Villageliu, Tara M. Nordgren, Debra J. Romberger

Journal Articles: Pulmonary & Critical Care Med

Dietary long-chain omega-3 polyunsaturated fatty acids (n-3 PUFA) and their pro-resolving metabolites are protective against atherosclerotic disease, and ameliorate systemic inflammatory conditions including lupus erythematosus, psoriasis, and bronchial asthma. Organic bioaerosol inhalation is a common and injurious hazard associated with agricultural occupations such as work in swine concentrated animal feeding operations (CAFOs) and is known to increase the risk for developing respiratory conditions such as asthma and COPD. Nearly all cells secrete membrane-bound vesicles (extracellular vesicles, EVs) that have the capacity to transmit protein, nucleic acid, and lipid signaling mediators between cells. Using a polymer-based isolation technique (ExoQuick, PEG) followed …

Suspected Anaphylactic Reaction Following Second Dose Of The Pfizer-Biontech (Bnt162b2) Coronavirus Vaccine In A Geriatric Female, Angelina Hong, Giezy Sardinas

HCA Healthcare Journal of Medicine

Anaphylaxis is a rare but serious adverse reaction that can occur following mRNA-based vaccination against coronavirus (COVID-19). This is a case of a geriatric patient presenting with hypotension and an urticarial rash with bullous lesions following a syncopal episode with incontinence. She received the second dose of the Pfizer-BioNTech (BNT162b2) COVID-19 vaccine three days prior, and first developed the skin abnormalities the morning after receiving the vaccine. She had no past history of anaphylaxis or allergies to vaccinations.

Her presentation met the diagnostic criteria for anaphylaxis, according to the World Allergy Organization: she had acute onset illness involving the skin …

Tissue Resident Macrophages Drive Fibrosis During Pancreas Inflammatory Injury And Pancreatic Ductal Adenocarcinoma, John Baer

Arts & Sciences Electronic Theses and Dissertations

The immune system, and especially macrophages, are central in responding to infections, as well as providing a wide array of functions in other pathologies, especially in responding to inflammation. It is established that macrophages will accumulate within tissues during inflammation, many times secreting cytokines and chemokines central to the inflammatory response. This is particularly true during pancreatitis, or inflammation of the pancreas, where it has been shown that macrophages and monocytes accumulate in the pancreas to have various roles in further promoting inflammation. It is not well established, however, whether there are divergent roles for the distinct macrophage subsets that …

Malignancy Masquerading As Steroid Resistant Hypereosinophilic Syndrome, Sonya Parashar, Aarti Pandya

Posters

Introduction: Hypereosinophilia syndrome (HES) is defined as 1500 eosinophils/mL or above with evidence of end-organ damage due to the eosinophils at least 4 weeks apart. Case description: A 3-year-old male was admitted for newly found anterior mediastinal mass and left pleural effusion. About 6 weeks prior to admission, he was seen in his primary care office for difficulty breathing. Despite the appropriate treatment for his symptoms, the patient continued to have significant respiratory symptoms and a chest x-ray showed a large left pleural effusion. He was immediately transferred to a tertiary care center and a CT chest showed large left …

A Rare Cause Of Urticaria In An Nsaid Tolerant Patient, Thao Le, Mary K. Mcleod, Laurianne Wild

Posters

Introduction: Acetaminophen is one of the most used anti-pyretics to mitigate fever. Few cases have been reported of hypersensitivity reactions to acetaminophen without non-steroidal anti-inflammatory drug (NSAID) intolerance. It is recommended that if there is suspected drug hypersensitivity then the patient should undergo an oral drug challenge. Case Description: A 49-year-old male presented for evaluation of urticaria that occurred with acetaminophen ingestion. He reported several episodes where he developed diffuse urticaria within 15 minutes of ingestion, but no other symptoms concerning for anaphylaxis. He was unsure of the dose. He also noted urticaria with Excedrin migraine, which contains acetaminophen, aspirin, …

Innovative Therapeutic Approach To Chemical Burns Produced By Vesicants; An Experimental Study, Cristina Anca Secara, Otilia Liudmila Cinteza, Diana Popescu, Claudia Valentina Popa, Camelia Andreea Hirjeu, Oana Cristina Voinea, Luiza Georgia Serbanescu, Andreea Marilena Pauna, Mihail Tudosie

Journal of Mind and Medical Sciences

Vesicants are compounds that cause severe toxic effects on various tissues. Such chemical action causes tissue necrosis, with clinical expression of skin lesions with a burning character and characteristic blisters. Clinical toxic effects of cutaneous vesicles are correlated with the absorbed dose and exposure time. The goals of the study are to evaluate in vitro the skin toxicity produced by the vesicant chemical compound 2-chloroethyl-ethyl sulfide (CEES), to develop a complex antidote formula, and to optimize the therapeutic efficacy by inclusion in controlled release systems. The experimental protocol aims at the in vitro evaluation of the cytotoxicity of the vesicant …

Defining The Cooperation Between Mhc-I And Mhc-Ii Neoantigen-Driven T Cell Responses To Develop Effective Personalized Immunotherapies, Charmelle Williams

The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences Dissertations and Theses (Open Access)

Immune checkpoint therapy (ICT) (e.g. anti-CTLA-4 (α-CTLA-4), anti-PD-1 (α-PD-1)) enables durable T cell-dependent anti-tumor immunity in certain cancer patients. Since a subset of patients respond to ICT, this work aims at developing a more in-depth understanding of T-cell responses to MHC class I (MHC-I) and MHC class II (MHC-II) tumor antigens that are derived from aberrant expression of non-mutant antigens or driver and passenger somatic alterations that can function as tumor neoantigens. We used a poorly immunogenic Braf^v600e Pten^-/- Cdkn2a^-/- YUMM1.7 (Y1.7) murine melanoma line with a paucity of endogenous neoantigens that is unresponsive to ICT, and …

Real-World Third Covid-19 Vaccine Dosing And Antibody Response In Patients With Hematologic Malignancies, Michael A. Thompson, Sigrun Hallmeyer, Veronica E. Fitzpatrick, Yunqi Liao, Michael P. Mullane, Stephen C. Medlin, Kenneth Copeland, James L. Weese

Journal of Patient-Centered Research and Reviews

Purpose: This study sought to describe the changes in immune response to a third dose of either Pfizer’s or Moderna’s COVID-19 mRNA vaccine (3V) among patients with hematologic malignancies, as well as associated characteristics

Methods: This retrospective cohort study analyzed pre-3V and post-3V data on 493 patients diagnosed with hematologic malignancies across a large Midwestern health system between August 28, 2021, and November 1, 2021. For antibody testing, S1 spike antigen of the SARS-CoV-2 virus titer was used to determine serostatus.

Results: Among 493 participants, 274 (55.6%) were seropositive both pre- and post-3V (+/+) while 115 (23.3%) seroconverted to positive …

Community-Based Asthma Assessment In Young Children: Adaptations For A Multicentre Longitudinal Study In South Asia, Mohammad Shahidul Islam, Samin Huq, Steven Cunningham, Jurgen Schwarze, Asmd Ashraful Islam, Mashal Amin, Farrukh Raza, Benazir Baloch, Muhammad Imran Nisar, Sajid Bashir Soofi

Department of Paediatrics and Child Health

Background: Systematic assessment of childhood asthma is challenging in low- and middle-income country (LMIC) settings due to the lack of standardised and validated methodologies. We describe the contextual challenges and adaptation strategies in the implementation of a community-based asthma assessment in four resource-constrained settings in Bangladesh, India, and Pakistan.
Method: We followed a group of children of age 6-8 years for 12 months to record their respiratory health outcomes. The study participants were enrolled at four study sites of the 'Aetiology of Neonatal Infection in South Asia (ANISA)' study. We standardised the research methods for the sites, trained field staff …

Urticarial Rash In A Patient With Alpha-Gal Syndrome Caused By Subcutaneous Heparin At Prophylactic Dosing: A Case Report, Russell G. Behmer, Randolph S. Thomas, Hani T. Jarawan

Journal of Maine Medical Center

Introduction: We report a patient with a history of red meat allergy, or alpha-gal syndrome, who had an urticarial rash after exposure to unfractionated heparin at a dose typically used for prophylaxis of deep venous thrombosis. Although anaphylactic reactions have been reported with systemic intravenous heparin, we believe this case is the first report of an immunoglobulin E–mediated reaction to subcutaneous heparin at prophylactic dosing.

Clinical Findings: An 85-year-old male had a 3-year history of red meat allergy and was intolerant of pork and beef. He developed an immunoglobulin E–mediated allergic reaction to subcutaneous heparin at a dose of 5000 …

Eight Tips For The Implementation Of The First Licenced Peanut Allergy Oral Immunotherapy Into Clinical Practice., Jay M. Portnoy, Christina E. Ciaccio, Janet Beausoleil, George Du Toit, Stanley Fineman, Stephen A. Tilles, June Zhang, Claire Lawrence, Mohamed Yassine, S Shahzad Mustafa

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Shared learnings from the early use of novel therapies can aid in their optimization. The recent introduction of peanut oral immunotherapy (peanut OIT; Palforzia [Peanut (Arachis hypogaea) Allergen Powder-dnfp]) for peanut allergy addresses a significant unmet need but also highlights the requirement for consideration of several factors by both prescribers and patients.

OBJECTIVE: To provide guidance for prescribers of licenced peanut OIT to facilitate treatment delivery and improve outcomes.

METHODS: Clinicians with experience of licenced peanut OIT (United States n = 6, United Kingdom n = 1) participated in a series of interviews and group discussions designed to elicit …

Likelihood Ratios For Reactions To Egg Based On Specific Ige And Oral Challenges, Melissa Anderson

Research Days

Background: Specific IgE (sIgE) to foods has been used to predict the risk of a systemic reaction (SR) when the food is ingested. An arbitrary cutoff of 0.35 is often used to separate a positive likelihood ratio (LR+) from a negative one (LR-), yet there is little evidence supporting the use of this value.

Objectives/Goal: The objective of this project was to establish a more accurate method for estimating the probability of food allergy to egg.

Methods/Design: Egg-sIgEs were measured and open oral egg challenges were performed on 155 children with a clinical history of egg allergy. Logistic regression (LR) …

Myopericarditis In A Patient With Recent Covid-19 Mrna Vaccine, Zamran Masih, Wayne Tamaska, Nicholas Tomasello

Stratford Campus Research Day

Myopericarditis after Covid-19 mRNA vaccination is not well described. However, there have been several cases described throughout the pandemic suggesting some correlation between Covid-19 vaccination and myopericarditis. We describe such a case where a patient developed myopericarditis after receiving Johnson & Johnson vaccine.

Migratory Dermatographic Urticaria Following Covid-19 Vaccine Booster In Young Adult Male, Richard A. Maiella, Kelly Staples, Ashok Veldanda

Stratford Campus Research Day

With the recent approval of booster vaccinations in the United States for adults who already received their primary vaccinations, millions of adults have been administered the Pfizer-BioNTech or Moderna booster vaccines.

Adverse events related to these vaccines continue to be reported and are majority self-limited. In this case report, we present a young male who acquired chronic, migratory dermatographic urticaria two weeks after administration of the Moderna mRNA-1273 COVID-19 vaccine booster.

Development Of New Treatments For Asthma And Neuropathic Pain Based On Ɣ-Aminobutyric Acid A Receptor (Gabaar) Ligands, Nicolas Mark Zahn

Theses and Dissertations

The γ-aminobutyric acid A receptor (GABAAR) is a ligand-gated pentameric chloride channel consisting of several identified subunits: α1-6, β1-3, γ1-3, δ, ε, π, θ, ρ1-3.1-2 Typical arrangement of subunits consists of two α subunits, two β subunits, and one γ subunit.3 GABAARs have two binding sites for the endogenous ligand γ-aminobutyric acid (GABA), between the α and β subunits. GABAARs also have a binding site for positive allosteric modulators, such as benzodiazepines, between the α and γ subunits.4-5 Due to their ability to treat anxiety, epilepsy, insomnia, and muscle relaxation, benzodiazepines are widely prescribed pharmaceuticals.6-7 Still, adverse effects result from …

Use Of Long-Acting Injectable Cabotegravir And Rilpivirine As An Alternative For Treatment In Hiv Positive Patients, Aravindh Nirmalan

Clinical Research in Practice: The Journal of Team Hippocrates

A clinical decision report using

Mantsios A, Murray M, Karver TS, et al. Efficacy and Freedom: Patient Experiences with the Transition from Daily Oral to Long-Acting Injectable Antiretroviral Therapy to Treat HIV in the Context of Phase 3 Trials. AIDS Behav. 2020;24(12):3473-3481. https://doi.org/10.1007/s10461-020-02918-x

for a young adult patient struggling with adherence.

Laboratory Findings In Covid-19 - Alterations Of Hematological, Immunological, Biochemical, Hormonal And Other Lab Panels: A Narrative Review, Yousef Rasmi, Lucas Paulo Jacinto Saavedra, Matei-Alexandru Cozma, Heba El-Nashar, Shaza Aly, Nouran Fahmy, Omayma Eldahshan, Mohamed El-Shazly, Elena Codruța Dobrică, Hamed Kord-Varkaneh, Camelia Cristina Diaconu, Mihnea Alexandru Găman

Journal of Mind and Medical Sciences

Up to the present date, according to the official reports of the World Health Organization (WHO), 205,338,159 patients have been confirmed with the coronavirus disease (COVID-19) and 4,333,094 have died as a consequence of this infectious disorder. The majority of COVID-19 patients will develop hematological, biochemical, immunological, hormonal and other complex alterations of their laboratory data which may be diagnosed using different biomarkers. In this paper, we review the alterations of the hematology, immunology, biochemistry, hormonal and other laboratory panels discovered in the subjects diagnosed with SARS-CoV-2 infection, based on the available data in the literature.