Critical Care Commons^™

Aryl Hydrocarbon Receptor Maintains Hepatic Mitochondrial Homeostasis In Mice, Mi Jeong Heo, Ji Ho Suh, Sung Ho Lee, Kyle L Poulsen, Yu A An, Bhagavatula Moorthy, Sean M Hartig, David D Moore, Kang Ho Kim

Faculty, Staff and Student Publications

OBJECTIVE: Mitophagy removes damaged mitochondria to maintain cellular homeostasis. Aryl hydrocarbon receptor (AhR) expression in the liver plays a crucial role in supporting normal liver functions, but its impact on mitochondrial function is unclear. Here, we identified a new role of AhR in the regulation of mitophagy to control hepatic energy homeostasis.

METHODS: In this study, we utilized primary hepatocytes from AhR knockout (KO) mice and AhR knockdown AML12 hepatocytes. An endogenous AhR ligand, kynurenine (Kyn), was used to activate AhR in AML12 hepatocytes. Mitochondrial function and mitophagy process were comprehensively assessed by MitoSOX and mt-Keima fluorescence imaging, Seahorse XF-based …

Ca2+ Efflux Facilitated By Co-Transport Of Inorganic Phosphate Anion In The H+/Ca2+ Antiporter Yfke, Wei Niu, Wenchang Zhou, Shuo Lu, Trung Vu, Vasanthi Jayaraman, José D Faraldo-Gómez, Lei Zheng

Faculty, Staff and Student Publications

Ca2+ is an important signaling messenger. In microorganisms, fungi, and plants, H+/Ca2+ antiporters (CAX) are known to play key roles in the homeostasis of intracellular Ca2+ by catalyzing its efflux across the cell membrane. Here, we reveal that the bacterial CAX homolog YfkE transports Ca2+ in two distinct modes: a low-flux H+/Ca2+ exchange mode and a high-flux mode in which Ca2+ and phosphate ions are co-transported (1:1) in exchange for H+. Coupling with phosphate greatly accelerates the Ca2+ efflux activity of YfkE. Our studies reveal that Ca2+ and phosphate bind to adjacent sites in a central translocation pathway and lead …

Sequential Absorption Of Two Photons Creates A Bistable Form Of Rubyacr Responsible For Its Strong Desensitization, Oleg A Sineshchekov, Elena G Govorunova, Hai Li, Yumei Wang, John L Spudich

Faculty, Staff and Student Publications

Channelrhodopsins with red-shifted absorption, rare in nature, are highly desired for optogenetics because light of longer wavelengths more deeply penetrates biological tissue. RubyACRs (Anion ChannelRhodopsins), a group of four closely related anion-conducting channelrhodopsins from thraustochytrid protists, are the most red-shifted channelrhodopsins known with absorption maxima up to 610 nm. Their photocurrents are large, as is typical of blue- and green-absorbing ACRs, but they rapidly decrease during continuous illumination (desensitization) and extremely slowly recover in the dark. Here, we show that long-lasting desensitization of RubyACRs results from photochemistry not observed in any previously studied channelrhodopsins. Absorption of a second photon by …

Effects Of Prenatal Pesticide Exposure On The Fetal Brain And Placenta Transcriptomes In A Rodent Model, Corina Lesseur, Kirtan Kaur, Sean D Kelly, Karen Hermetz, Randy Williams, Ke Hao, Carmen J Marsit, W Michael Caudle, Jia Chen

Faculty, Staff and Student Publications

Organophosphate and pyrethroid pesticides are among the most extensively used insecticides worldwide. Prenatal exposures to both classes of pesticides have been linked to a wide range of neurobehavioral deficits in the offspring. The placenta is a neuroendocrine organ and the crucial regulator of the intrauterine environment; early-life toxicant exposures could impact neurobehavior by disrupting placental processes. Female C57BL/6 J mice were exposed via oral gavage to an organophosphate, chlorpyrifos (CPF) at 5 mg/kg, a pyrethroid, deltamethrin (DM), at 3 mg/kg, or vehicle only control (CTL). Exposure began two weeks before breeding and continued every three days until euthanasia at gestational …

Structural Insights Into Ligand Recognition And Selectivity Of Somatostatin Receptors, Corey F Hryc, Venkata K P S Mallampalli, Evgeniy I Bovshik, Stavros Azinas, Guizhen Fan, Irina I Serysheva, Genevieve C Sparagna, Matthew L Baker, Eugenia Mileykovskaya, William Dowhan

Faculty, Staff and Student Publications

Cardiolipin is a hallmark phospholipid of mitochondrial membranes. Despite established significance of cardiolipin in supporting respiratory supercomplex organization, a mechanistic understanding of this lipid-protein interaction is still lacking. To address the essential role of cardiolipin in supercomplex organization, we report cryo-EM structures of a wild type supercomplex (IV

Therapeutic Plasma Exchange To Alleviate Ventricular Tachycardia After Diphenhydramine Ingestion, Kaushal Dosani, Lejla Music Aplenc, Stephen Pfeiffer

Research Days

Background: The Covid-19 pandemic has adversely affected the mental health of children causing an increased incidence of suicide attempts. Diphenhydramine is a common household medication and is frequently ingested by children. Toxic doses of diphenhydramine can affect the cardiovascular and central nervous system. In the heart, diphenhydramine blocks fast sodium channels and potassium channels which can result in conduction abnormalities including sinus tachycardia, widening of QRS duration, ventricular tachycardia and torsades de pointes. Massive ingestion can cause severe cardiovascular collapse which may require ECMO support

Objectives/Goal: To describe a novel method of clearing highly protein-bound diphenhydramine molecules from circulation after …

A Comparison Of Large Tbsa Scald Versus Flame Burns In Young Children, Ashley Daniel

Research Days

Background: It is generally accepted that of children with the same total body surface area of burns, those with flame burns seem to have longer lengths of stay and more complications than those with scald burns. Anecdotally we have seen the opposite to be true. Among a consortium of five US pediatric burn centers participating in the Pediatric Injury Quality Improvement Collaborative (PIQIC), young children with scald burns seem to experience disproportionately more frequent and severe complications compared to their older counterparts and compared to patients of a similar age with flame burns.

Objectives/Goal: In this multi-institutional study, we compared …

Icu Nurses’ Adherence To The Cdc’S Central Line Bundle: A Qualitative Study, Cherie Burke, Cherie Burke

Electronic Theses and Dissertations

Background: Central line associated bloodstream infections (CLABSIs) are one of the most common healthcare associated infections and result in prolonged hospital stays, significant morbidity, and increased costs to the healthcare system. Adherence to the CDC central line maintenance bundle has been shown to be effective in decreasing CLABSI yet these infections continue to be a problem. ICU nurses play a vital role in managing central lines and adhering to the maintenance guidelines, however different situations may arise during the care that may impact CLABSIs.

Objectives: 1) To determine nurses’ adherence to the CDC’s maintenance central line

bundle; 2) To determine …

Isolated Temazepam Overdose: A Unique Case Of An Unresponsive Female, Eric Doane

Rowan-Virtua Research Day

Cases of acute overdose presenting to the emergency department pose a great challenge given that history can sometimes be limited or at times be inaccurate. While naloxone is routinely given in the field to help reduce opiate’s sedating effects, the routine use of flumazenil has not been routinely adopted in cases of benzodiazepine overdose. This is because, unlike naloxone, there are many medications that act on the GABA receptor, and flumazenil is only specific for binding to the benzodiazepine/GABA receptor. This can lead to an unmasking of other medications that may be co-ingested that also effect the GABA receptor leading …

Characterization Of Antibiotic Susceptibility Profiles Of Extensively- And Pan-Drug Resistant Acinetobacter Baumannii Clinical Isolates, Rachel Carr, Justin Halim, Rebecca Fliorent, Henry Fraimow, Dejan Nikolic, Valerie Carabetta

Rowan-Virtua Research Day

Acinetobacter baumannii is an opportunistic pathogen common in intensive care units (ICUs), particularly among immunocompromised individuals. Nosocomial A. baumannii infections have become increasingly problematic in recent years, as these bacteria rapidly acquire antibiotic resistance, leading to the emergence of multidrug, extensively drug and pan drug-resistant (MDR, XDR, and PDR, respectively) isolates. Recently, Cooper University Hospital (CUH) experienced a large increase in highly drug-resistant A. baumannii infections, which had a mortality rate of 60%. Oftentimes, physicians had to turn to combinations of drugs with no experimental verification or historically shelved antibiotics, such as the polymyxins, in a desperate attempt to save …

Brief Review: Iv Fluid Choice In The Emergency Department, Kaywan Saed, James Espinosa, Alan Lucerna

Rowan-Virtua Research Day

Normal saline and balanced crystalloids, such as lactated Ringer's (LR) and Plasma-Lyte A, are commonly used in the emergency setting for fluid resuscitation. However, there has been growing interest in recent years in whether balanced crystalloids may be superior to normal saline, particularly in critically ill patients.

Normal saline has been the traditional fluid of choice for decades due to its widespread availability, low cost, and presumed safety. However, normal saline has a high chloride concentration (154 mmol/L), which can lead to hyperchloremic metabolic acidosis and other adverse effects, such as renal vasoconstriction and reduced renal blood flow.

In contrast, …

Sigmoid Perforation Extending Into The Abdominal Wall, Zamran Masih, Wayne Tamaska, James Espinosa, Alan Lucerna

Rowan-Virtua Research Day

Sigmoid colon perforation and spread into the abdominal wall is a rare condition that can occur due to various causes such as diverticulitis, trauma, malignancy, or iatrogenic injury during surgery. Although rare, sigmoid colon perforation into the abdominal wall can result in significant morbidity and mortality if not promptly diagnosed and treated. Most common cause of diverticular disease leading to perforation is diverticulitis, accounting for 60% of all colonic perforations.

Does The Type Of Chronic Heart Failure Impact In-Hospital Outcomes For Aortic Valve Replacement Procedures?, Talha Mubashir, John Zaki, Sin Yeong An, Ismael A Salas De Armas, Yafen Liang, Travis Markham, Han Feng, Mehmet H Akay, Angelo Nascimbene, Bindu Akkanti, George W Williams, Fabricio Zasso, Maria Patarroyo Aponte, Igor D Gregoric, Biswajit Kar

Faculty, Staff and Student Publications

BACKGROUND: This study assessed in-hospital outcomes of patients with chronic systolic, diastolic, or mixed heart failure (HF) undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR).

METHODS: The Nationwide Inpatient Sample database was used to identify patients with aortic stenosis and chronic HF who underwent TAVR or SAVR between 2012 and 2015. Propensity score matching and multivariate logistic regression were used to determine outcome risk.

RESULTS: A cohort of 9,879 patients with systolic (27.2%), diastolic (52.2%), and mixed (20.6%) chronic HF were included. No statistically significant differences in hospital mortality were noted. Overall, patients with diastolic HF …

Evaluating The Accuracy And Quality Of The Information On Pulmonary Rehabilitation Videos Shared On Youtube Amidst The Covid-19 Pandemic, Payaum Fotovat-Ahmadi, Bilal M. Ali, Bhavinkumar Dalal

Posters

YouTube is a visual library that is growing at incredible pace, especially with the rise of COVID-19 pandemic. Pulmonary rehabilitation refers to the rehabilitation treatment of patients with chronic pulmonary diseases. YouTube has made it possible to practice remote rehabilitation, the effectiveness of which have been proven non-inferior to traditional approaches.

A Survey Of Medical Student Experiences During The Covid-19 Pandemic, Stephanie Gappy, Girish Nair, Dwayne Baxa

Posters

During the COVID-19 pandemic, medical students switched from an in-person to virtual curriculum. This shift placed stress on medical schools to find alternatives to train students. Students relied on recorded lectures, emails, and video-conferencing to stay up-to-date with schoolwork. Understanding student experiences during the pandemic will help prepare students and administrators for repeat lockdown events. The goal of this study is to understand the experiences of medical students during the pandemic.

Neurocope: A Novel Intervention To Increase Professional Fulfillment And Reduce Burnout By Connecting Neuro-Icu Healthcare Workers To Their Post-Recovery Patients, Angela Leclerc, Mary Sorcher, David Seder, Sara Penrod, Meghan Searight, Alison Daley, Sarah Hanken, Christine Lord, Whitney Trosper, Stephanie Chan, Jennifer Cote

Costas T. Lambrew Research Retreat 2023

Background:

Healthcare workers (HCWs) caring for patients with acute neurologic injury in the ICU rarely receive detailed information on the recovery of their patients. The missing connection between the period of acute neurologic injury and long-term outcomes is a psychological burden that contributes to moral fatigue and burnout.

We hypothesize that attending an Interprofessional conference series through which patients describe their acute brain injury and recovery to Neuro-ICU HCWs may ease moral fatigue, increasing professional fulfillment and reducing burnout.

Impact Of Structured Reporting Template On The Quality Of Hrct Radiology Reports For Interstitial Lung Disease, Han G. Ngo, Girish B. Nair, Sayf Al-Katib

Posters

This QI study compared the completeness of HRCT radiology reports before and after the implementation of a disease-specific structured reporting template for suspected cases of interstitial lung disease (ILD).

Evaluation Of Phenobarbital In The Treatment Of Alcohol Withdrawal In The Intensive Care Unit, Sienna J. Ringgenberg, Vishal K. Patel

Posters

Alcohol withdrawal syndrome (AWS) is typically managed using the Clinical Institute Withdrawal Assessment (CIWA) protocol which includes benzodiazepines, supportive care, and close clinical monitoring. Alternatives to benzodiazepines such as phenobarbital provide several advantages including less frequent dosing, longer tapering off of doses, and additional glutamate inhibition. The purpose of this study is to evaluate the effectiveness and potential benefit to using phenobarbital in addition to CIWA protocol in the treatment of AWS at Beaumont, Royal Oak.

Critical Review Of Oncologic Medical Malpractice Claims Against Orthopaedic Surgeons, William Davis, Shravya Kichena, Michael D Eckhoff, Benjamin R Childs, Rajiv Rajani, Matthew E Wells, Sean P Kelly

Faculty, Staff and Student Publications

INTRODUCTION: The purpose of this study was to determine the most common allegations for malpractice litigation brought against orthopaedic surgeons for oncologic matters and the resulting verdicts.

METHODS: The Westlaw Legal research database was queried for malpractice cases filed against orthopaedic surgeons for oncologic matters in the United States after 1980. Plaintiff demographics, state of filing, allegations, and outcomes of lawsuits were recorded and reported accordingly.

RESULTS: A total of 36 cases met the inclusion and exclusion criteria and were subsequently included in the final analysis. The overall rate of cases filed remained consistent through the past four decades and …

Exploring 5-Minute Heart Rate Variability In Spinal Cord Injury During Acute Inpatient Rehabilitation, Argyrios Stampas, Colton Malesovas, Michael Burke, Sahira Farooq, Mani Singh, Radha Korupolu, Sheng Li

Faculty, Staff and Student Publications

To explore the use of 5-minute heart rate variability (HRV) during inpatient rehabilitation in the acute phase of traumatic spinal cord injury (SCI). Longitudinal observational study. Acute inpatient rehabilitation (AIR). 10 patients with acute traumatic SCI. 5-minute HRV supine recordings twice daily on three different days per patient. HRV values were evaluated (1) within a single day (Early versus Late); (2) across the inpatient admission (initial, mid, and discharge); (3) by SCI phenotypes and by clinical outcomes (ex. pressure injuries (PI)). Patients had an average age of 38 years, 80% male, and 40% with tetraplegia. There were no HRV differences …

Does The Type Of Chronic Heart Failure Impact In-Hospital Outcomes For Aortic Valve Replacement Procedures?, Talha Mubashir, John Zaki, Sin Yeong An, Ismael A Salas De Armas, Yafen Liang, Travis Markham, Han Feng, Mehmet H Akay, Angelo Nascimbene, Bindu Akkanti, George W Williams, Fabricio Zasso, Maria Patarroyo Aponte, Igor D Gregoric, Biswajit Kar

Faculty, Staff and Student Publications

BACKGROUND: This study assessed in-hospital outcomes of patients with chronic systolic, diastolic, or mixed heart failure (HF) undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR).

METHODS: The Nationwide Inpatient Sample database was used to identify patients with aortic stenosis and chronic HF who underwent TAVR or SAVR between 2012 and 2015. Propensity score matching and multivariate logistic regression were used to determine outcome risk.

RESULTS: A cohort of 9,879 patients with systolic (27.2%), diastolic (52.2%), and mixed (20.6%) chronic HF were included. No statistically significant differences in hospital mortality were noted. Overall, patients with diastolic HF …

Interleukin-33 Facilitates Liver Regeneration Through Serotonin-Involved Gut-Liver Axis, Yankai Wen, Christoph Emontzpohl, Long Xu, Constance L Atkins, Jong-Min Jeong, Yang Yang, Kangho Kim, Chuan Wu, Shizuo Akira, Cynthia Ju

Faculty, Staff and Student Publications

BACKGROUND AND AIMS: Insufficient liver regeneration causes post-hepatectomy liver failure and small-for-size syndrome. Identifying therapeutic targets to enhance hepatic regenerative capacity remains urgent. Recently, increased IL-33 was observed in patients undergoing liver resection and in mice after partial hepatectomy (PHx). The present study aims to investigate the role of IL-33 in liver regeneration after PHx and to elucidate its underlying mechanisms.

APPROACH AND RESULTS: We performed PHx in IL-33 -/- , suppression of tumorigenicity 2 (ST2) -/- , and wild-type control mice, and found deficiency of IL-33 or its receptor ST2 delayed liver regeneration. The insufficient liver regeneration could be …

Death Due To Drug Reaction With Eosinophilia And Systemic Symptoms (Dress) Syndrome: A Case Report, Samantha P. Sternad, Jane Pangburn, Chad Johnston, David Rowe

HCA Healthcare Journal of Medicine

Background

Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a life-threatening, multi-organ adverse drug reaction with an incidence of 1 in 1000 to 1 in 10 000 highrisk drug exposures.

Case Presentation

An elderly female presented to the hospital with progressive weakness and a diffuse erythematous macular rash covering most of her body that started 3 days prior. Over the next 3 days, the patient quickly deteriorated, developing disorientation with acute onset left-sided weakness, leukocytosis, thrombocytopenia, eosinophilia, liver and kidney failure, and hypoxia. Clinical and histological changes supported the diagnosis of DRESS syndrome caused by intravenous (IV) ampicillin …

Cloning A Profibrotic Stem Cell Variant In Idiopathic Pulmonary Fibrosis, Shan Wang, Wei Rao, Ashley Hoffman, Jennifer Lin, Justin Li, Tao Lin, Audrey-Ann Liew, Matthew Vincent, Tinne C J Mertens, Harry Karmouty-Quintana, Christopher P Crum, Mark L Metersky, David A Schwartz, Peter J A Davies, Clifford Stephan, Soma S K Jyothula, Ajay Sheshadri, Erik Eddie Suarez, Howard J Huang, John F Engelhardt, Burton F Dickey, Kalpaj R Parekh, Frank D Mckeon, Wa Xian

Faculty, Staff and Student Publications

Idiopathic pulmonary fibrosis (IPF) is a progressive, irreversible, and rapidly fatal interstitial lung disease marked by the replacement of lung alveoli with dense fibrotic matrices. Although the mechanisms initiating IPF remain unclear, rare and common alleles of genes expressed in lung epithelia, combined with aging, contribute to the risk for this condition. Consistently, single-cell RNA sequencing (scRNA-seq) studies have identified lung basal cell heterogeneity in IPF that might be pathogenic. We used single-cell cloning technologies to generate "libraries" of basal stem cells from the distal lungs of 16 patients with IPF and 10 controls. We identified a major stem cell …

Acute Lithiasis Cholecystitis; Particularities Of Diagnosis And Treatment In The Elderly, Adrian Silaghi, Bogdan Socea, Petrisor Banu, Vlad Dumitru Baleanu, Dragos Epistatu, Ioana Paunica, Vlad Denis Constantin

Journal of Mind and Medical Sciences

Objectives. The incidence of acute cholecystitis increases with age, when patients usually associate additional comorbidities. Such comorbidities and the late presentation to the doctor make the treatment more complex, associating higher rates of complications. The present study aims to evaluate the methods of diagnosis and treatment applied to a group of older patients with acute cholecystitis. Materials and Methods. 585 patients were enrolled in the study between 2019 and 2023. The inclusion criteria in the study were represented by the presence of the diagnosis of acute cholecystitis in patients over 65 years of age, while patients who presented complex locoregional …

Chronic Wound Management; Surgical Therapy And Complementary Nursing With Manuka Honey, Georgeta Paunică-Panea, Sergiu Teodorescu, Aurelia Preda, Laura Elena Gligor, Adrian Silaghi, Vlad Denis Constantin

Journal of Mind and Medical Sciences

Objectives. This study aims to analyze the evolution of chronic wounds treated both surgically and by complementary nursing using Manuka honey. The parameters monitored were: presence/persistence of bacterial infection, the duration of healing, the recovery period and the patients' quality of life. Materials and Methods. The study group and the control group each consisted of 10 patients, aged between 50-60 years, with chronic wounds of various etiologies but without other significant systemic pathologies. Data collection was carried out through anamnesis, physical examination and analysis of medical documents. Results. In the study group, the depth of the wound was reduced rapidly …

Diagnosis And Management Of Colon Cancer Patients Presenting In Advanced Stages Of Complications, Vlad Denis Constantin, Adrian Silaghi, Dragos Epistatu, Anca Silvia Dumitriu, Stana Paunica, Daniela Gabriela Bălan, Bogdan Socea

Journal of Mind and Medical Sciences

Colorectal cancer is an important health problem with a significant impact on the individual and society. Malignancy (including colorectal cancer) is usually slightly symptomatic in its initial stages. This causes cancer to be discovered in some patients accidentally (either through screening tests in predisposed individuals or during routine investigations for other diseases), while in other patients the colorectal cancer is discovered in late stages, when the symptoms are much more intense due to complications. Unfortunately, such advanced cases of the disease have high rates of morbidity and mortality even with treatment. Current treatment methods are usually complex, interdisciplinary, causing significant …

Impact Of Risk Factors On The Evolution Of Severe Acute Pancreatitis, Andra Maria Trotea, Raluca Grigorescu, Dragos Serban, Radu Palade, Simona Balasescu, Cristian Mihai Branescu, Daniel Radu, Corneliu Tudor, Tiberiu Alexandru Trotea

Journal of Mind and Medical Sciences

Introduction. Severe acute pancreatitis (SAP) is an acute inflammatory condition of the pancreas with increasing incidence and mortality rates in recent years. The aim of this study was to evaluate the impact of age, comorbidities, and different scoring systems on the complications and outcomes of SAP. Materials and Methods. A retrospective study was conducted on 161 patients diagnosed and treated for SAP at the Bucharest University Hospital in the intensive care unit (ICU), in the period 2014-2021. The impact of risk factors for the development of SAP, occurrence of complications (respiratory, cardiac, etc.), length of hospital stays and mortality was …

Zoster-Associated Prothrombotic Plasma Exosomes And Increased Stroke Risk, Andrew N Bubak, Christina Coughlan, Janelle Posey, Anthony J Saviola, Christy S Niemeyer, Serena W R Lewis, Sara Bustos Lopez, Adriana Solano, Stephen K Tyring, Cassidy Delaney, Keith B Neeves, Ravi Mahalingam, Kirk C Hansen, Maria A Nagel

Faculty, Staff and Student Publications

Herpes zoster (HZ; shingles) caused by varicella zoster virus reactivation increases stroke risk for up to 1 year after HZ. The underlying mechanisms are unclear, however, the development of stroke distant from the site of zoster (eg, thoracic, lumbar, sacral) that can occur months after resolution of rash points to a long-lasting, virus-induced soluble factor (or factors) that can trigger thrombosis and/or vasculitis. Herein, we investigated the content and contributions of circulating plasma exosomes from HZ and non-HZ patient samples. Compared with non-HZ exosomes, HZ exosomes (1) contained proteins conferring a prothrombotic state to recipient cells and (2) activated platelets …

Dpp8 Selective Inhibitor Tominostat As A Novel And Broad-Spectrum Anticancer Agent Against Hematological Malignancies, Shohei Kikuchi, Akinori Wada, Yusuke Kamihara, Kosuke Okazaki, Paras Jawaid, Mati Ur Rehman, Eiji Kobayashi, Takeshi Susukida, Tomoki Minemura, Yoshimi Nabe

Department of Biological & Biomedical Sciences

DPP8/9 inhibition induces either pyroptotic or apoptotic cell death in hematological malignancies. We previously reported that treatment with the DPP8/9 inhibitor 1G244 resulted in apoptotic cell death in myeloma, and our current study further evaluates the mechanism of action of 1G244 in different blood cancer cell lines. Specifically, 1G244 inhibited DPP9 to induce GSDMD-mediated-pyroptosis at low concentrations and inhibited DPP8 to cause caspase-3-mediated-apoptosis at high concentrations. HCK expression is necessary to induce susceptibility to pyroptosis but does not participate in the induction of apoptosis. To further characterize this DPP8-dependent broad-spectrum apoptosis induction effect, we evaluated the potential antineoplastic role for …