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7546 citation(s) found for "Ku, Matthew".

Abstract LB082: Disrupting lipid metabolism in GBM: A systems biology approach to targeting treatment-resistant persister cells and tumor associated myeloid cell-mediated support
Chakraborty, Avirup , Yang, Changlin , Feier, Diana , Silver, Aryeh , Searl, Nyla, Anica, Miruna, Pittu, Avinash, West, Illena, Sobanjo, Olusegun O., Hodge, Ethan, Engelbart, Mia, Sengupta, Srabasti, Thomas, Nagheme, Rahman, Maryam, Sarkisian, Matthew R. , Huang, Jianping , Mitchell, Duane A. , Chakraborty, Avirup , Feier, Diana, West, Illena, Sengupta, Srabasti, Roemeling, Christina A. Von , Harrison, Jeffrey K. , Deleyrolle, Loic P.

Mayo Clinic

Cancer Research | April 25, 2025 | Volume: 85 | Issue: 8_Supplement_2 | Pages: LB082-LB082

10.1158/1538-7445.am2025-lb082 Get It

Abstract Introduction: Glioblastoma (GBM) tumors contain distinct cell lineages, including treatment-sensitive cells (TSCs) relying on aerobic glycolysis and treatment-resistant persister cells (TRPCs) dependent on lipid metabolism. Our systems biology-based, spatial multi-omics and multi-targeted approach decodes a critical node in GBM progression, lipid acquisition in TRPCs, and validates this through a retrospective analysis of statin-treated patients, offering clinical insights into the potential benefits of targeting lipid metabolism in high TRPC signature GBM patients. Methods: We performed spatial transcriptomics and proteomics, combined with 3D rendering of the tumor microenvironment (TME) and geospatially resolved single-cell neighborhood analysis of IHC-stained GBM tissues using our custom-developed SNAQ algorithm to investigate the immune microenvironment and lipid distribution specific to TSCs and TRPCs. To characterize lipid dynamics, we employed flow cytometry, time-lapse imaging, and holotomography to track lipid transfer from Tumor-Associated Myeloid Cells (TAMCs) to TRPCs. A critical node for GBM progression was identified through in vivo survival and tumor progression studies that assessed effects of genetic targeting of CCR2 and pharmacological targeting of CSF1R and FABP3. Retrospective analysis was conducted on 4,085 GBM patients to evaluate the effect of statin treatment on GBM outcomes based on their TRPC signature. Results: Our study establishes the skewed accumulation of TAMCs within the TRPC microenvironment through upregulation of the CCL2/7-CCR2 and CSF1-CSF1R pathways. TAMCs actively transfer lipids to TRPCs to fulfill their metabolic demands. Targeting elements responsible for lipid incorporation in TRPCs, such as CCR2, CSF1R, and FABP3 in vivo, resulted in tumor immune microenvironment remodeling, significant tumor growth reduction, and improved survival. This reinforces the critical role of metabolic communications via lipid trafficking in TRPCs as an essential node in GBM progression. Our retrospective study showed that GBM patients with elevated TRPC signatures, typically associated with shorter survival, had no significant survival differences when treated with lipid-lowering statins. This suggests statins may disrupt lipid metabolism in TRPCs, reducing TAMC lipid support and improving patient outcomes. Conclusion: Our study highlights lipid trafficking in TRPCs as a key mechanism in GBM progression, suggesting that targeting TAMC recruitment and lipid acquisition in TRPCs may offer a promising therapy. Additionally, our retrospective analysis highlights the potential of transcriptomic profiling for patient stratification based on TRPC signature expression levels, enabling the identification of patients to benefit from lipid metabolism-targeted therapies. Citation Format: Avirup Chakraborty, Changlin Yang, Diana Feier, Aryeh Silver, Nyla T. Searl, Miruna Anica, Avinash Pittu, Illena West, Olusegun O. Sobanjo, Ethan D. Hodge, Mia K. Engelbart, Srabasti Sengupta, Nagheme Thomas, Christina Von Roemeling, Maryam Rahman, Matthew Sarkisian, Jianping Huang, Jeffrey Harrison, Duane A. Mitchell, Loic P. Deleyrolle. Disrupting lipid metabolism in GBM: A systems biology approach to targeting treatment-resistant persister cells and tumor associated myeloid cell-mediated support [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2025; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2025 Apr 25-30; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2025;85(8_Suppl_2):Abstract nr LB082.
Abstract LB010: C5F2-hexyl-(cuban-1-yl-methyl)-biguanide (C5F2-HCB) overcomes an immune excluded tumor microenvironment (TME) and suppresses tumor growth in the ovarian dependent ER+HER2- SSM2ucd mammary carcinoma allograft model
Guo, Zhijun , Lei, Jianxun, McCarra, Joshua, Pryzbilla, Michael J., Koniar, Brenda, Norris, Beverly, Schumacher, Robert J., Hawse, John R. , D’Assoro, Antonino B. , Panigrahy, Dipak, Bruce, Hammock D., Ambrose, Elizabeth A. , Matthew, Goetz P., Cao, Qing , Jayaraman, Swaathi , Denisov, Ilia G. , Sligar, Stephen G. , Schwertfeger, Kathryn L. , Farrar, Michael A. , Bruce, Hammock D., Georg, Gunda I. , Potter, David A.

Mayo Clinic

Cancer Research | April 25, 2025 | Volume: 85 | Issue: 8_Supplement_2 | Pages: LB010-LB010

10.1158/1538-7445.am2025-lb010 Get It

Abstract Introduction: Heme-binding biguanides inhibit cytochrome P450 monooxygenase-mediated biosynthesis of the epoxy fatty acid (EpFA) (±)14,15-EET, which promotes progression of ER+HER2- breast cancer as well as regulatory T cell (Treg) proliferation. However, there are no known strategies to exploit this vulnerability. Metformin has shown promise but lacks sufficient potency and clinical utility. Through structure-based design, heme binding hexyl cubane derivatives of metformin were identified, which potently inhibited (±)14,15-EET biosynthesis. Fluorination of the hexyl moiety improved pharmacokinetics (PK) and reduced toxicity. Among the fluorinated derivatives, C5F2-HCB potently inhibited (±)14,15-EET biosynthesis (IC50=3.1 uM for C5F2-HCB vs. 5 mM for metformin). C5F2-HCB and metformin are candidate agents for TME activation from “cold” to “hot” due to their inhibition of EETs biosynthesis and EET-driven oxidative phosphorylation (OXPHOS) which promotes tumor hypoxia. We then tested whether C5F2-HCB or metformin could inhibit immune exclusion in the immunologically “cold” ovarian dependent STAT1 KO SSM2ucd mammary carcinoma model, in part, by reducing Tregs and/or increasing CD8 or CD4 tumor infiltrating T cells (TIL). We hypothesized that biguanides, by reducing EETs, would suppress Tregs and promote effector T cells in the TME. We also hypothesized that C5F2-HCB would be more effective than metformin in modulating the TME, based on greater potency for inhibition of (±)14,15-EET biosynthesis. Both biguanides were tested at their maximum tolerated dose (C5F2-HCB; 18 mg/kg daily and metformin; 50 mg/kg every other day). Results: In the SSM2ucd allograft, all combination treatment groups with biguanides reduced tumor growth relative to the IgG control at the endpoint (day 63) : metformin + IgG (51.5±9.8% of control), C5F2-HCB + IgG (53.3±12.8%), metformin + anti-PD-1 (50.4±11.5%), and C5F2-HCB + anti-PD-1 (49.6±12.8%) [(P < 0.05) for all comparisons]. In contrast, anti-PD-1 antibody alone failed to reduce tumor growth at the endpoint. Flow cytometry analysis of the TME revealed that only C5F2-HCB + IgG treatment increased CD8+ tumor-infiltrating lymphocytes (TILs) compared to all other treatment groups (>2-fold; P < 0.05). Additionally, only C5F2-HCB + anti-PD-1 reduced intratumoral Tregs (>3-fold; P < 0.05). C5F2-HCB in combination with IgG or anti-PD-1 reduced intratumoral macrophages by >50% (P < 0.001) and reduced the M2/M1 macrophage ratio by 32-61% (P < 0.05) relative to other groups. No effects on CD4+ T cells were observed. Furthermore, C5F2-HCB and IgG or anti-PD-1 increased intratumoral neutrophils by 75- 120% compared to the anti-PD-1 or IgG (P < 0.05). (Multiple comparisons tested by ANOVA). Conclusion: Relative to IgG alone, C5F2-HCB and metformin inhibited growth of the SSM2ucd allograft in combination with either anti-PD1 or IgG. In contrast to metformin, only C5F2-HCB modulated the TME, including increased CD8+ TILs with IgG, reduced Tregs with anti-PD-1, and decreased M2/M1 macrophage ratio with IgG and anti-PD-1. C5F2-HCB, in contrast tometformin, was effective in modulating an immune excluded TME and may contribute to a strategy for clinical translation. Citation Format: Zhijun Guo, Jianxun Lei, Joshua McCarra, Qing Cao, Michael J. Pryzbilla, Brenda Koniar, Beverly Norris, Robert J. Schumacher, Swaathi Jayaraman, John R. Hawse, Antonino B. D'Assoro, Ilia G. Denisov, Stephen G. Sligar, Kathryn L. Schwertfeger, Michael A. Farrar, Dipak Panigrahy, Hammock D. Bruce, Elizabeth A. Ambrose, Gunda I. Georg, Goetz P. Matthew, David A. Potter. C5F2-hexyl-(cuban-1-yl-methyl)-biguanide (C5F2-HCB) overcomes an immune excluded tumor microenvironment (TME) and suppresses tumor growth in the ovarian dependent ER+HER2- SSM2ucd mammary carcinoma allograft model [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2025; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2025 Apr 25-30; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2025;85(8_Suppl_2):Abstract nr LB010.
Abstract CT237: A randomized phase 2 non-inferiority trial of (Z)-endoxifen + goserelin and exemestane + goserelin as neoadjuvant treatment for premenopausal women with ER+/HER2- breast cancer (EVANGELINE)
López, Clàudia, Erickson, Hayley, Nguyen, Lonnissa, Mina, Lida A. , Advani, Pooja , Leon‐Ferre, Roberto A. , Flora, Daniel , Jones, Jason M. , Hunt, Katie N. , Buhrow, Sarah A. , Schellenberg, Matthew J. , Hawse, John R. , Goetz, Matthew P. , Suman, Vera J. , López, Claudia S. , Erickson, Hayley, Hammer, Sandra S. , Giridhar, Karthik V. , Batalini, Felipe , Bagegni, Nusayba , Piltin, Mara A. , Degnim, Amy C. , Ingle, James N. , Boughey, Judy C. , Reid, Joel M. , Quay, Steven C.

Mayo Clinic

Cancer Research | April 25, 2025 | Volume: 85 | Issue: 8_Supplement_2 | Pages: CT237-CT237

10.1158/1538-7445.am2025-ct237 Get It

Abstract Background: Endocrine therapy (ET) with aromatase inhibitors (AI) plus ovarian function suppression (OFS) is standard for premenopausal women with ER+/HER2- breast cancer. However, many premenopausal women are intolerant of AI + OFS, leaving tamoxifen (with or without OFS) as their only option. Extensive studies have demonstrated that premenopausal women treated with neoadjuvant ET whose tumors exhibit Ki-67 ≤ 10% following 4 weeks of therapy (defined as endocrine sensitive disease (ESD)) achieve 5-year distant disease-free survival > 96%. Problematically, only 41% of patients reach this ESD threshold with tamoxifen compared to 78% with AI+OFS (Nitz JCO 2022). (Z)-endoxifen (ENDX) is a potent selective estrogen receptor modulator (SERM) that inhibits ERα at plasma concentrations of 3-5 ng/ml and dually targets PKCβ1, a suspected oncogene in breast tumors, at concentrations ≥ 500 ng/ml. We therefore developed the EVANGELINE study (NCT05607004) is an open label, randomized neoadjuvant phase II study that includes a pharmacokinetic (PK) Run-in, aiming to evaluate whether ENDX +/- goserelin is non-inferior to exemestane plus goserelin with respect to ESD rate. Following the completed PK run-in portion of the study, where 40mg/day or 80mg/day ENDX were assessed, the 40 mg/day dose was selected for further evaluation in the second part of the trial. The second part is comprised of a randomized treatment cohort, for patients with a Ki-67% >10% at preregistration randomized to either 40mg (Z)-endoxifen + goserelin or exemestane + goserelin neoadjuvant treatment and a Single Arm Treatment Cohort for patients who have a Ki-67 ≤ 10% at pre-registration assigned to 40mg/day (Z)-endoxifen monotherapy neoadjuvant treatment. Methods: To investigate ENDX further in premenopausal women, a multicenter study in the United States, was designed(EVANGELINE; NCT05607004). This phase 2, open-label, randomized, neoadjuvant trial includes a PK run-in phase designed to assess whether the 4-week ESD rate with (Z)-endoxifen + goserelin is non-inferior to that of exemestane + goserelin in premenopausal women with Stage IIA or IIB ER+/HER2- breast cancer with diagnostic Ki67 > 10%. Additionally, a single arm Phase 2, open-label neoadjuvant Cohort was designed to assess the 4-week ESD rate with ENDX monotherapy in premenopausal women with Stage IIA or IIB ER+/HER2- BC with diagnostic Ki67 ≤10%. Subjects will undergo neoadjuvant treatment for six months before receiving surgical treatment in the involved breast. This study will additionally assess safety, tolerability, response rates, surgical outcomes, and monitor disease progression. Comprehensive biomarker evaluations will be conducted using paired tumor biopsies and blood samples collected at baseline and week four, as well as 6 month surgical specimens. Enrollment in the PK run-in phase (n-22) was completed in Fall 2024 with the second portion of the trial slated to begin early in 2025. Citation Format: Matthew P. Goetz, Vera J. Suman, Claudia Lopez, Hayley Erickson, Lonnissa Nguyen, Sandra S. Hammer, Lida Mina, Pooja Advani, Roberto Leon-Ferre, Karthik Giridhar, Felipe Batalini, Daniel Flora, Jason M. Jones, Nusayba A. Bagegni, Katie N. Hunt, Mara Piltin, Amy Degnim, James N. Ingle, Judy C. Boughey, Sarah A. Buhrow, Joel M. Reid, Matthew Schellenberg, John R. Hawse, Steven C. Quay. A randomized phase 2 non-inferiority trial of (Z)-endoxifen + goserelin and exemestane + goserelin as neoadjuvant treatment for premenopausal women with ER+/HER2- breast cancer (EVANGELINE) [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2025; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2025 Apr 25-30; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2025;85(8_Suppl_2):Abstract nr CT237.
Complex Metabolomic Changes in a Combined Defect of Glycosylation and Oxidative Phosphorylation in a Patient with Pathogenic Variants in PGM1 and NDUFA13
Radenkovic, Silvia , Adant, Isabelle , Bird, Matthew , Swinnen, Johannes V. , Cassiman, David , Ghesquière, Bart , Bird, Matthew J , Gruenert, Sarah C , Ghesquière, Bart , Kozicz, Tamás , Morava, Éva

Mayo Clinic

Cells | April 25, 2025 | Volume: 14 | Issue: 9 | Pages: 638

10.3390/cells14090638 | PMID 40358162 Get It

Inherited metabolic disorders (IMDs) are genetic disorders that occur in as many as 1:2500 births worldwide. Nevertheless, they are quite rare individually and even more rare is the co-occurrence of two IMDs in one individual. To better understand the metabolic cross-talk between glycosylation changes and deficient energy metabolism, and its potential effect on outcomes, we evaluated patient fibroblasts with likely pathogenic variants in PGM1 and pathogenic variants in NDUFA13 derived from a patient who passed away at 16 years of age. The patient presented with characteristic of PGM1-CDG including bifid uvula, muscle involvement, abnormal glycosylation in blood, and elevated liver transaminases. In addition, hearing loss, seizures, elevated plasma and CSF lactate and a Leigh-like MRI brain pattern were present, which are commonly associated with Leigh syndrome. PGM1-CDG has been reported in about 70 individuals, while NDUFA13 deficiency has so far only been reported in 13 patients. As abundant energy is essential for glycosylation, and both PGM1 and NDUFA13 are linked to energy metabolism, we sought to better understand the underlying biochemical cause of the patient’s clinical presentation. To do so, we performed extensive investigations including tracer metabolomics, lipidomics and enzymatic studies on the patient’s fibroblasts. We found a profound depletion of UDP-hexoses, consistent with PGM1-CDG. Complex I enzyme activity and mitochondrial function were also impaired, corroborating complex I deficiency and Leigh syndrome. Further, lipidomics analysis showed similarities with both PGM1-CDG and OXPHOS-deficient patients. Based on our results, the patient was diagnosed with both PGM1-CDG and Leigh syndrome. In summary, we present the first case of combined CDG and Leigh syndrome, caused by (likely) pathogenic variants in PGM1 and NDUFA13, and underline the importance of considering the synergistic effects of multiple disease-causing variants in patients with complex clinical presentation, leading to the patient’s early demise.
Abstract CT186: EVEREST-2: A seamless phase 1/2 study of A2B694, a logic-gated Tmod CAR T-cell therapy, in patients with mesothelin-expressing solid tumors with human leukocyte antigen-A*02 loss of heterozygosity
Molina, Julian R. , Dorigo, Oliver , Avila, Monica , Konecny, Gottfried E. , Ward, Jeffrey D. , Block, Matthew S. , Specht, Jennifer M. , Lou, Yanyan, Xuan, Jacqueline D., Eskander, Ramez N. , Ong, Gayanie, Langeberg, Wendy, Mardiros, Armen, Maloney, David G. , Welch, John S. , Hecht, J. Randolph, Specht, Jennifer , Hazim, Antonious , Punekar, Salman R. , Simeone, Diane M. , Kirtane, Kedar , Ward, Jeffrey, Boyd, Leslie R. , Park, Jong Chul , Xuan, Jacqueline D., Davila, Marco L , Maus, Marcela V , Locke, Frederick L. , Wise, Andrea

Mayo Clinic

Cancer Research | April 25, 2025 | Volume: 85 | Issue: 8_Supplement_2 | Pages: CT186-CT186

10.1158/1538-7445.am2025-ct186 Get It

Abstract Background: Chimeric antigen receptor T-cell (CAR T) therapies have demonstrated significant clinical efficacy in hematologic malignancies, but have proven challenging in solid tumors, in part owing to a lack of tumor-specific targets and unmanageable toxicity. Mesothelin (MSLN) expression normally is limited to the mesothelium of major body cavities but can be upregulated in diverse solid tumor types (cancer.gov/tcga), making it a potential target for cancer therapy. MSLN-targeted cell therapy approaches, including CAR T and T-cell receptor fusion therapies, have shown promising clinical activity; however, on-target, off-tumor toxicity including fatal events have occurred (Beatty, et al. Gastroenterology. 2018.; Haas, et al. Mol Ther. 2023.; Hong, et al. ESMO 2021. Abstract 9590.). A2B694 is an autologous logic-gated, MSLN-targeted Tmod CAR T therapy that addresses the challenges of on-target, off-tumor toxicity by combining 2 CARs: an activating and blocking receptor. The activator recognizes MSLN present on the surface of both tumor and normal cells; the blocker inhibits the CAR T activator when it binds human leukocyte antigen (HLA)-A*02, which is present in normal cells and often lost in tumor cells. Thus, in patients with tumor-associated HLA-A*02 loss of heterozygosity (LOH), the blocker prevents on-target, off-tumor toxicity on normal cells owing to retained HLA-A*02 expression (Hamburger, et al. Mol Immunol. 2020). Through this unique selective mechanism, A2B694 may provide a therapeutic window to treat patients with MSLN-expressing solid tumors exhibiting HLA-A*02 LOH. Methods: EVEREST-2 (NCT06051695) is a first-in-human, phase 1/2, open-label, nonrandomized study to evaluate the safety and efficacy of A2B694 in adults with recurrent unresectable, locally advanced, or metastatic cancers with MSLN expression, including non-small cell lung cancer, colorectal cancer, pancreatic cancer, ovarian cancer, mesothelioma, or other solid tumors with MSLN expression. Eligible patients must have progressed following standard of care therapy. Enrollment to EVEREST-2 occurs through the prescreening study BASECAMP-1 (NCT04981119), which identifies patients with tumor-associated HLA-A*02 LOH via next-generation sequencing (Tempus AI, Inc). Eligible patients enroll in the BASECAMP-1 study and undergo leukapheresis. A2B694 is manufactured from cryopreserved T cells when clinically appropriate for patients. The primary objective of phase 1 is to evaluate the safety and tolerability of A2B694 and identify the recommended phase 2 dose (RP2D). The dose-expansion phase will confirm RP2D and collect biomarker data to further characterize A2B694. Phase 2 will assess overall response rate per RECIST v1.1. The first patient was enrolled on EVEREST-2 in April 2024. Dose escalation is ongoing. Citation Format: Julian R. Molina, Antonious Hazim, Oliver Dorigo, Salman R. Punekar, Monica Avila, Diane M. Simeone, Kedar Kirtane, Gottfried E. Konecny, Jeffrey Ward, Matthew Block, Jennifer Specht, Leslie Boyd, Yanyan Lou, Jong Chul Park, Jacqueline D. Xuan, Ramez N. Eskander, Gayanie Ong, Marco Davila, Wendy Langeberg, Marcela Maus, Armen Mardiros, Frederick L. Locke, Andrea Wise, David G. Maloney, John Welch, J. Randolph Hecht. EVEREST-2: A seamless phase 1/2 study of A2B694, a logic-gated Tmod CAR T-cell therapy, in patients with mesothelin-expressing solid tumors with human leukocyte antigen-A*02 loss of heterozygosity [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2025; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2025 Apr 25-30; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2025;85(8_Suppl_2):Abstract nr CT186.
Building an Interdisciplinary Workforce in Geroscience: Aligning Perspectives and Educational Goals
Al‐Naggar, Iman M. , Quinn, Crystal G, LaHue, Sara C. , Ocañas, Sarah R. , Yousefzadeh, Matthew J. , Kozikowski, Chester, McAbee‐Sevick, Heather, Curran, Sean P. , Justice, Jamie N. , Orr, Miranda E. , Thatcher, Christine, Espinoza, Sara , Newman, John C. , Pignolo, Robert J. , Yousefzadeh, Matthew J , Curran, Sean P , Justice, Jamie N , Newman, John C , Espinoza, Sara , Quinn, Crystal G, Campellone, Kenneth G. , Kuchel, George A.

Mayo Clinic

The Journals of Gerontology, Series A: Biological Sciences and Medical Sciences | April 24, 2025 | Volume: 80 | Issue: 9 | Pages: No page available

10.1093/gerona/glaf090 | PMID 40850699 Get It

Abstract The National Institute on Aging-funded Geroscience Education and Training Network held the “Building an Interdisciplinary Workforce in Geroscience: Aligning Perspectives and Educational Goals” preconference workshop at the 2023 Gerontological Society of America’s Annual Meeting. Parties involved in geroscience education and interested stakeholders addressed the development of didactic educational materials, training, and career development opportunities to equip learners with the skills to meet the demands of the emerging field of geroscience, from research to clinic and industry. Recent successes were presented, existing opportunities, gaps, and challenges identified and discussed, and solutions and future directions described.
A mixed methods survey of research education requirements for residents in internal medicine, neurology and transitional programs
O’Shea, Michael , Ashcherkin, Nikita, Biondi, Matt , Chaffin, Hally, Umar, Sarah B. , Delafield, Nathan, Chhabra, Nikita, Hoerth, Matthew T., Starling, Amaal J. , Valles, Brittane T., Wu, Christina, Taylor, Gretchen, Hawkins, Camille, Persons, Patress , Biondi, Matthew, Umar, Sarah, Hoerth, Matthew, Starling, Amaal, Valles, Brittane, Karikalan, Suganya Arunachalam , Biondi, Matt , Sharma, Umesh

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Medical Education Online | April 24, 2025 | Volume: 30 | Issue: 1 | Pages: No page available

10.1080/10872981.2025.2494579 | PMID 40271579 Get It

Approach to Lung Transplantation in Pulmonary Arterial Hypertension: A Delphi Consensus on Behalf of the Transplant Task Force of the Pulmonary Vascular Research Institute
Levine, Deborah J. , Castillo, Howard, Arcasoy, Selim M. , Benvenuto, Luke , Cevasco, Marisa , Demarest, Caitlin T. , Dewachter, Céline , Erasmus, Michiel E. , Glanville, Allan R. , Granton, John , Khangoora, Vikramjit, Krishnan, Sheila , Miltiades, Andrea , Murphy, Edward L. , Robbins, Ivan M. , Rahaghi, Franck , Saddoughi, Sahar A. , Vachiéry, Jean-Luc, Whitford, Helen, Girgis, Reda E. , Kolaitis, Nicholas A , Arcasoy, Selim M , Mercier, Olaf , Montani, David , Robbins, Ivan , Barnes, Hayley , Bacchetta, Matthew , Rosenzweig, Erika B. , Keshavjee, Shaf , Saddoughi, Sahar A. , Savale, Laurent , Simon, Marc A. , Vachiéry, Jean‐Luc , Ventetuolo, Corey E.

Mayo Clinic

Pulmonary Circulation | April 24, 2025 | Volume: 15 | Issue: 2 | Pages: No page available

10.1002/pul2.70088 | PMID 40276473 Get It

ABSTRACTLung transplantation is indicated for selected patients with advanced pulmonary arterial hypertension (PAH). We used a modified Delphi process to develop recommendations on care of patients with PAH undergoing lung transplantation. This Delphi panel was recruited from the Pulmonary Vascular Research Institute's Innovative Drug Discovery Initiative ‐ Lung Transplantation Workstream, consisting of clinical and research experts in PAH and lung transplantation. In this process, 29 panelists were given open‐ended questions, querying topics related to lung transplantation in PAH. A steering group converted the responses into discrete statements. Panelists then rated agreement using a Likert scale in two further survey rounds: −5 (strongly disagree) to 5 (strongly agree). Consensus was defined as mean ≥ 2.5 or ≤ −2.5, with a standard deviation not crossing zero. Consensus was reached on 141 of 223 statements. Notable areas of consensus were for early discussions about transplantation, and agreement with previously published referral and listing criteria. There was agreement that lung transplantation could be offered in sick candidates, including those with concurrent renal or hepatic insufficiency. Bilateral lung transplantation was considered the procedure of choice for most patients, with rare indications for heart‐lung transplantation. Consensus on bridging strategies included use of veno‐arterial extracorporeal membrane oxygenation and preemptive awake cannulation in those with severe right ventricular dysfunction. Consensus was also achieved on intraoperative use of invasive hemodynamic monitoring, and prolonged postoperative circulatory support guided by hemodynamic response and echocardiography. Patients with PAH undergoing transplantation require specialized management, which differs somewhat from other candidates.
Aβ 42/40 and p-tau 181 as disease biomarkers in atypical Alzheimer's disease
Singh, Neha Atulkumar , Graff‐Radford, Jonathan , Li, Danni , Mielke, Michelle M. , Machulda, Mary M. , Schwarz, Christopher G. , Senjem, Matthew L. , Jack, Clifford R. , Lowe, Val J. , Josephs, Keith A. , Whitwell, Jennifer L. , Singh, Neha Atulkumar , Jack, Clifford R , Schwarz, Christopher G , Mielke, Michelle M , Senjem, Matthew L , Machulda, Mary M

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Journal of Alzheimer’s Disease | April 23, 2025 | Volume: 105 | Issue: 3 | Pages: 923-931

10.1177/13872877251333450 | PMID 40267266 Get It

Background Studies suggest that plasma Alzheimer's disease (AD) biomarkers may aid in the overall diagnosis of AD, but their utility among patients with atypical clinical presentations of AD are unknown. Objective The main objective of this study was to determine the relationship between amyloid-β (Aβ) and tau plasma biomarkers and PET measures of both Aβ and tau in atypical AD. The secondary objective was to determine if plasma biomarkers could differentiate patients with different atypical AD phenotypes and whether they were related to measures of disease severity. Methods We assessed whether plasma p-tau 181 and Aβ 42/40 were associated with Aβ and tau PET uptake, clinical phenotype and severity in 77 patients with PET biomarker-confirmed atypical AD. Results Plasma Aβ 42/40 ratio showed positive associations with tau PET uptake, with higher (more normal) Aβ 42/40 ratio associated with higher tau uptake; the ratio was not associated with Aβ PET. No associations were noted with plasma p-tau 181. Plasma Aβ 42/40 ratio and p-tau 181 concentrations were not associated with AD phenotype or cognitive severity. Conclusion Plasma Aβ 42/40 ratio and p-tau 181 concentrations are not associated with amyloid or tau PET or with clinical severity among individuals presenting with atypical AD.
Multidisciplinary collaborative guidance on the assessment and treatment of patients with Long COVID : A compendium statement
Cheng, Abby L. , Herman, Eric, Abramoff, Benjamin , Anderson, Jordan , Baratta, John M. , Bartels, Matthew N. , Bhavaraju‐Sanka, Ratna, Fine, Jeffrey S., Herrera, Joseph E., Karnik, Rasika, Kurylo, Monica, Longo, Michele, McCauley, Mark , Melamed, Esther , Miglis, Mitchell G. , Neal, Jacqueline D., Oleson, Christina V. , Rydberg, Leslie , Terzic, Carmen M., Niehaus, William , Baratta, John M , Fleming, Talya K , Verduzco-Gutierrez, Monica , Rydberg, Leslie , Silver, Julie , Miglis, Mitchell G , Azola, Alba Miranda , Blitshteyn, Svetlana , Fleming, Talya K. , Verduzco‐Gutierrez, Monica , Putrino, David F. , Silver, Julie K. , Whiteson, Jonathan H.

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PM&R | April 22, 2025 | Volume: 17 | Issue: 6 | Pages: 684-708

10.1002/pmrj.13397 | PMID 40261198 Get It

Abstract Background In 2021, the American Academy of Physical Medicine and Rehabilitation established the Multi‐Disciplinary Post‐Acute Sequelae of SARS‐CoV‐2 Infection Collaborative to provide guidance from established Long COVID clinics for the evaluation and management of Long COVID. The collaborative previously published eight Long COVID consensus guidance statements using a primarily symptom‐based approach. However, Long COVID symptoms most often do not occur in isolation. Aims This compendium aims to equip clinicians with an efficient, up‐to‐date clinical resource for evaluating and managing adults experiencing Long COVID symptoms. The primary intended audience includes physiatrists, primary care physicians, and other clinicians who provide first‐line assessment and management of Long COVID symptoms, especially in settings where subspecialty care is not readily available. This compendium provides a holistic framework for assessment and management, symptom‐specific considerations, and updates on prevalence, health equity, disability considerations, pathophysiology, and emerging evidence regarding treatments under investigation. Because Long COVID closely resembles other infection‐associated chronic conditions (IACCs) such as myalgic encephalomyelitis/chronic fatigue syndrome, the guidance in this compendium may also be helpful for clinicians managing these related conditions. Methods Guidance in this compendium was developed by the collaborative's established modified Delphi approach. The collaborative is a multidisciplinary group whose members include physiatrists, primary care physicians, pulmonologists, cardiologists, psychiatrists, neuropsychologists, neurologists, occupational therapists, physical therapists, speech and language pathologists, patients, and government representatives. Over 40 Long COVID centers are represented in the collaborative. Results Long COVID is defined by the National Academies of Sciences, Engineering, and Medicine as “an IACC that occurs after SARS‐CoV‐2 infection and is present for at least 3 months as a continuous, relapsing and remitting, or progressive disease state that affects one or more organ systems.” The current global prevalence of Long COVID is estimated to be 6%. Higher prevalence has been identified among female gender, certain racial and ethnic groups, and individuals who live in nonurban areas. However, anyone can develop Long COVID after being infected with the SARS‐CoV‐2 virus. Long COVID can present as a wide variety of symptom clusters. The most common symptoms include exaggerated fatigue and diminished energy windows, postexertional malaise (PEM)/postexertional symptom exacerbation (PESE), cognitive impairment (brain fog), dysautonomia, pain/myalgias, and smell and taste alterations. Holistic assessment should include a traditional history, physical examination, and additional diagnostic testing, as indicated. A positive COVID‐19 test during acute SARS‐CoV‐2 infection is not required to diagnose Long COVID, and currently, there is no single laboratory finding that is definitively diagnostic for confirming or ruling out the diagnosis of Long COVID. A basic laboratory assessment is recommended for all patients with possible Long COVID, and consideration for additional labs and diagnostic procedures is guided by the patient's specific symptoms. Current management strategies focus on symptom‐based supportive care. Critical considerations include energy conservation strategies and addressing comorbidities and modifiable risk factors. Additionally, (1) it is essential to validate the patient's experience and provide reassurance that their symptoms are being taken seriously because many patients have had their symptoms dismissed by loved ones and clinicians; (2) physical activity recommendations must be carefully tailored to the patient's current activity tolerance because overly intense activity can trigger PEM/PESE and worsened muscle damage; and (3) treatment recommendations should be delivered with humility because there are many persistent unknowns related to Long COVID. To date, there are limited data to guide medication management specifically in the context of Long COVID. As such, medication use generally follows standard practice regarding indications and dosing, with extra attention to prioritize (1) patient preference via shared decision‐making and (2) cautious use of medications that may improve some symptoms (eg, cognitive/attention impairment) but may worsen other symptoms (eg, PEM/PESE). Numerous clinical trials are investigating additional treatments. The return‐to‐work process for individuals with Long COVID can be challenging because symptoms can fluctuate, vary in nature, affect multiple functional areas (eg, physical and cognitive), and often manifest as an “invisible disability” that may not be readily acknowledged by employers or coworkers. Clinicians can help patients return to work by identifying suitable workplace accommodations and resources, providing necessary documentation, and recommending occupational or vocational therapy when needed. If these efforts are unsuccessful and work significantly worsens Long COVID symptoms or impedes recovery, applying for disability may be warranted. Long COVID is recognized as a potential disability under the Americans with Disabilities Act. Conclusion To contribute to the overall health and well‐being for all patients, Long COVID care should be delivered in a holistic manner that acknowledges challenges faced by the patient and uncertainties in the field. For more detailed information on assessment and management of specific Long COVID symptoms, readers can reference the collaborative's symptom‐specific consensus guidance statements.