Publications by authors named "Michael Lawrence"

Somma, M and Lawrence, MA. Reliability and accuracy of Stryd to detect changes in vertical displacement of the center of mass while running. J Strength Cond Res XX(X): 000-000, 2024-The purpose of this study was to determine if Stryd can reliably and accurately detect changes in vertical displacement of the center of mass (VCoM) that are produced when cadence was increased by 5 and 10%.

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Follicular lymphoma (FL) is the most common indolent type of B-cell non-Hodgkin lymphoma. Advances in treatment have improved overall survival, but early relapse or transformation to aggressive disease is associated with inferior outcome. To identify early genetic events and track tumor clonal evolution, we performed multi-omics analysis of 94 longitudinal biopsies from 44 FL patients; 22 with transformation (tFL) and 22 with relapse without transformation (nFL).

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Article Synopsis
  • The study analyzed the pass/fail rate of performance validity tests (PVT) among 183 presurgical epilepsy candidates to see how validity relates to cognitive performance and mood.
  • It found that a 10% failure rate on PVT was linked to lower scores on various cognitive measures, highlighting its importance in evaluating neurocognitive function.
  • Additionally, they discovered that PVT outcomes were not significantly influenced by demographic factors like sex, race, age, education, or clinical history, suggesting it could reliably indicate performance validity in this population.
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Introduction: Mild cognitive impairment (MCI) is a significant public health concern and a potential precursor to Alzheimer's disease (AD). This study leverages electronic health record (EHR) data to explore rural-urban differences in MCI incidence, risk factors, and healthcare navigation in West Michigan.

Methods: Analysis was conducted on 1,528,464 patients from Corewell Health West, using face-to-face encounters between 1/1/2015 and 7/31/2022.

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Biliary tract cancers (BTCs) are a group of deadly malignancies encompassing intrahepatic and extrahepatic cholangiocarcinoma, gallbladder carcinoma, and ampullary carcinoma. Here, we present the integrative analysis of 63 BTC cell lines via multi-omics clustering and genome- scale CRISPR screens, providing a platform to illuminate BTC biology and inform therapeutic development. We identify dependencies broadly enriched in BTC compared to other cancers as well as dependencies selective to the anatomic subtypes.

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  • The rise of omic data brings new challenges in how we handle, analyze, and integrate this information, which is crucial for biological research.
  • Bioconductor serves as a comprehensive platform for community-driven analysis of biological data, while tidy R programming introduces an innovative approach for organizing and manipulating data.
  • The tidyomics software ecosystem connects Bioconductor with tidy R practices, aiming to simplify omic analysis and facilitate collaboration across different scientific disciplines, as evidenced by its successful application in analyzing a large dataset from the Human Cell Atlas.
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Purpose: Total pancreatectomy with islet autotransplantation (TPIAT) is an effective treatment for patients with chronic pancreatitis (CP) when other interventions are unsuccessful. CP has many etiologies including heredity. Metabolic and pain relief outcomes after TPIAT are presented among patients with a genetic CP etiology compared with those with a nongenetic etiology in a large cohort of patients who underwent this procedure at our center.

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Article Synopsis
  • - The increasing amount of omic data creates challenges in how to manage, analyze, and integrate this information.
  • - Bioconductor offers a community-driven platform for biological data analysis, while tidy R programming introduces a new standard for organizing and manipulating data.
  • - This software ecosystem connects Bioconductor with tidy R, aiming to simplify omic analysis and foster collaborations, demonstrated through the analysis of 7.5 million cells from the Human Cell Atlas.
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Cysteine-focused chemical proteomic platforms have accelerated the clinical development of covalent inhibitors for a wide range of targets in cancer. However, how different oncogenic contexts influence cysteine targeting remains unknown. To address this question, we have developed "DrugMap," an atlas of cysteine ligandability compiled across 416 cancer cell lines.

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  • Acute pancreatitis is a serious and painful inflammatory disease caused by factors like genetics, alcohol, and gallstones, leading to high rates of illness and death.
  • It involves immune responses characterized by the infiltration of neutrophils and M1 macrophages, which contribute to inflammation and tissue damage.
  • The review focuses on the role of Toll-like receptor 4 (TLR4) in acute pancreatitis, highlighting its interaction with harmful substances and potential as a therapeutic target to improve patient outcomes.
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Circulating Tumor Cells (CTCs), interrogated by sampling blood from patients with cancer, contain multiple analytes, including intact RNA, high molecular weight DNA, proteins, and metabolic markers. However, the clinical utility of tumor cell-based liquid biopsy has been limited since CTCs are very rare, and current technologies cannot process the blood volumes required to isolate a sufficient number of tumor cells for in-depth assays. We previously described a high-throughput microfluidic prototype utilizing high-flow channels and amplification of cell sorting forces through magnetic lenses.

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The APOBEC3 enzymes convert cytosines in single-stranded DNA to uracils to protect against viruses and retrotransposons but can contribute to mutations that diversify tumors. To understand the mechanism of mutagenesis, we map the uracils resulting from expression of APOBEC3B or its catalytic carboxy-terminal domain (CTD) in Escherichia coli. Like APOBEC3A, the uracilomes of A3B and A3B-CTD show a preference to deaminate cytosines near transcription start sites and the lagging-strand replication templates and in hairpin loops.

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Antiviral DNA cytosine deaminases APOBEC3A and APOBEC3B are major sources of mutations in cancer by catalyzing cytosine-to-uracil deamination. APOBEC3A preferentially targets single-stranded DNAs, with a noted affinity for DNA regions that adopt stem-loop secondary structures. However, the detailed substrate preferences of APOBEC3A and APOBEC3B have not been fully established, and the specific influence of the DNA sequence on APOBEC3A and APOBEC3B deaminase activity remains to be investigated.

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Islet transplantation is a therapeutic option to replace β-cell mass lost during type 1 or type 3c diabetes. Innate immune responses, particularly the instant blood-mediated inflammatory reaction and activation of monocytes, play a major role in the loss of transplanted islet tissue. In this study, we aimed to investigate the inhibition of toll-like receptor 4 (TLR4) on innate inflammatory responses.

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Unlabelled: Small cell lung cancer (SCLC) presents as a highly chemosensitive malignancy but acquires cross-resistance after relapse. This transformation is nearly inevitable in patients but has been difficult to capture in laboratory models. Here, we present a preclinical system that recapitulates acquired cross-resistance, developed from 51 patient-derived xenograft (PDX) models.

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Article Synopsis
  • - PAR4 is a potential target for developing new antithrombotic drugs that could reduce bleeding risks compared to current treatments.
  • - Researchers discovered a promising compound through high-throughput screening (HTS) and improved it using structural optimizations, resulting in a new series that effectively blocks PAR4.
  • - The leading compound showed exceptional potency (2 nM IC) against PAR4 and significant selectivity, making it highly effective in preventing thrombosis with minimal bleeding side effects in monkey models.
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  • HPV-associated oropharyngeal cancer (HPV+OPSCC) is the most common HPV-related cancer in the U.S., but it currently lacks a screening method, making early detection challenging, despite the disease developing years before diagnosis.* -
  • Researchers created an HPV whole genome sequencing test called HPV-DeepSeek, showing 99% sensitivity and specificity, which successfully identified 79% of HPV+OPSCC cases from plasma samples collected up to 10.8 years prior to cancer diagnosis.* -
  • The study indicates that blood-based screening can detect HPV-associated cancers years before clinical diagnosis, emphasizing the promise of using circulating tumor DNA (ctDNA) for early cancer detection.*
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Mutation signatures associated with apolipoprotein B mRNA editing catalytic polypeptide-like 3A/B (APOBEC3A/B) cytidine deaminases are prevalent across cancers, implying their roles as mutagenic drivers during tumorigenesis and tumor evolution. APOBEC3A (A3A) expression induces DNA replication stress and increases the cellular dependency on the ataxia telangiectasia and Rad3-related (ATR) kinase for survival. Nonetheless, how A3A induces DNA replication stress remains unclear.

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Burgeoning evidence demonstrates that effects of environmental exposures can be transmitted to subsequent generations through the germline without DNA mutations. This phenomenon remains controversial because underlying mechanisms have not been identified. Therefore, understanding how effects of environmental exposures are transmitted to unexposed generations without DNA mutations is a fundamental unanswered question in biology.

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Cysteine-focused chemical proteomic platforms have accelerated the clinical development of covalent inhibitors of a wide-range of targets in cancer. However, how different oncogenic contexts influence cysteine targeting remains unknown. To address this question, we have developed , an atlas of cysteine ligandability compiled across 416 cancer cell lines.

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The mismatch repair (MMR) deficiency of cancer cells drives mutagenesis and offers a useful biomarker for immunotherapy. However, many MMR-deficient (MMR-d) tumors do not respond to immunotherapy, highlighting the need for alternative approaches to target MMR-d cancer cells. Here, we show that inhibition of the ATR kinase preferentially kills MMR-d cancer cells.

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Programmed cell death protein 1 (PD-1) immune checkpoint blockade therapy has revolutionized cancer treatment. Although PD-1 blockade is effective in a subset of patients with cancer, many fail to respond because of either primary or acquired resistance. Thus, next-generation strategies are needed to expand the depth and breadth of clinical responses.

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