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1062 citation(s) found for "Yu, Kristin".

Prospective study of patient-reported depression, and cognitive and functional impairment, and impact on survival and induction mortality in fit adults age ≥60 years receiving intensive chemotherapy (IC) for Acute Myeloid Leukemia (AML): Prospective geriat
Foran, James M. , Luger, Selina M. , Sun, Zhuoxin , Rowe, Jacob M. , Paietta, Elisabeth , Racevskis, Janis, Altman, Jessica K. , Al‐Kali, Aref , Zheng, Hong , Pratz, Keith W. , O’Dwyer, Kristen M. , Broun, E. Randolph, Powell, Bayard, Litzow, Mark, Tallman, Martin S. , Chen, Li , Klepin, Heidi D. , Lai, Catherine , Claxton, David F. , Lazarus, Hillard M. , Arber, Daniel A. , Garrett-Bakelman, Francine E. , Zhang, Yanming , O'Dwyer, Kristin , Godwin, John E. , Ofran, Yishai , Dotan, Efrat , Wagner, Lynne I.

Blood | December 4, 2025 | Volume: 146 | Issue: Supplement 1 | Pages: 882-882

10.1182/blood-2025-882 Get It

Abstract Background We performed a prospective study evaluating a baseline GA battery and clinical outcomes in fit older adults (age ≥60 years) with AML and normal cardiac and renal function in the recent E-A NCTN E2906 phase 3 study. A patient-reported outcomes (PRO) assessment of Depression, Activities of Daily Living (ADL), Cognitive Function, Social Support (SS) domains, and comorbidity was performed at study registration to evaluate the prevalence of vulnerabilities and their impact on overall survival (OS) and 30-day induction mortality rates (IM) in this cohort selected for fitness to receive IC. Methods E2906 study design and results have been presented previously [n=727, age ≥60 years, randomized 1:1 to ‘standard 7&3‘ & high dose cytarabine (Arm A) vs. single agent clofarabine (CLO, Arm B), as remission induction (Step 1) and consolidation (Step 2)]. There was no difference in composite complete remission (CCR, 50%) or IM (8.5%), and CLO was inferior for OS. A baseline GA was a key secondary protocol objective, offered to all patients, and n=532 (73%) participated. We assessed Geriatric Depression Scale (GDS, none vs. any depressive symptoms, n=524); cognitive screen using Mini-Mental Exam Section (MMES, score 8/8 vs. <8, n=516); ADL & Instrumental ADL (iADL), (need for assistances vs. not n=526); a Medical Outcomes Study SS Survey (MOS-SS, measured as per unit increase, n=527); a Comorbidity survey ( ≤4 vs. ≥5 patient-reported comorbidities, n=530), patient-reported prescription medications use (PM, 0-3 vs. ≥4, n=519); and a survey of Sexual Desire (n=491) and Sexual Activity (n=477) within 4 weeks of AML diagnosis. Association of GA domains with OS, IM, and achievement of CCR was evaluated using the Chi-squared, Fisher's exact, and Wilcoxon rank sum test. Survival analysis was performed using the Cox proportional hazards models, adjusted for treatment arm. All p-values are 2-sided. Results The median age among those participating in GA battery was 67 yrs (range 60-85), including 38% age ≥70. There were 42% females, and ECOG performance status was 0 (28%), 1 (54%), 2 (16%), or 3 (2%). Central Cytogenetic review was classified (ELN2017) as Favorable (3%), Intermediate (66%), and Adverse (31%) risk. There was a notable rate of GA scores outside ‘normal’ clinical cutoff, including Depression (GDS 31%), cognitive and functional impairment [MMSE (37%), ADL (25%) and iADL (32%)], ≥5 Comorbidities (23%), and ≥4 PM's (44%). 81% & 76%, respectively, reported no sexual activity and low/none sexual desire. MOS-SS tended to be high in this cohort [mean (SD) score 87 (17)]. We observed a significant association of GA domains with OS & IM. For OS, absence of depressive symptoms [GDS, Hazard Ratio (HR) 0.79, 95% confidence Intervals (CI) 0.64-0.97, p=0.025)], MMES 8/8 (HR 0.78, 95%CI 0.64-0.96, p=0.016), requiring no assistance with ADLs (HR 0.65, 95%CI 0.52-0.82, p<0.001) and iADLs (HR 0.69, 95%CI 0.57-0.85, p<0.001), and ≤4 Comorbidities (HR 0.68, 95%CI 0.54-0.84, p=0.001) were significant for superior OS; use of ≥4 PM's was associated with inferior OS (HR 1.32, 95%CI 1.09-1.61, p=0.005). There was no association of sexual activity/desire, BMI ≥30 kg/m2, or MOS-SS with OS. IM was significantly higher among those with any depression symptoms (GDS, p=0.005), any ADL (p=0.010) or iADL (p=0.013) impairment, ≥5 comorbidities (p=0.037) and ≥4 PM's (p=0.001); there was no association with MOS-SS or MMES. There was no significant association of GA scores with cytogenetic risk group or with CCR rates. Only ADL independence (p=0.048), and possibly Comorbidity ≤4 (p=0.071), were associated with proceeding to Step 2. Conclusions In this large prospective cohort of fit older adults with AML selected to receive IC, we observed high rates of PRO-assessed GA vulnerability, which was significantly associated with inferior OS and higher IM rates, and (for ADL impairment) lower rates of proceeding to consolidation therapy. This suggests that functional and cognitive impairments are prevalent and can significantly impact outcome even in fit older adults. Despite potential long-term OS advantages of IC previously observed in E2906, efforts to systematically recognize those at higher risk based on GA PROs are needed to help identify patients who may be more appropriate for study of lower intensity treatment options to mitigate impact on IM and OS. SImilarly we plan to evaluate the potential benefit of GA-driven supportive care to improve patients' outcomes.
Acute Myeloid Leukemia (AML) with TP53 alteration and outcomes after allogeneic hematopoietic stem cell transplantation: A CIBMTR registry study
Gomez-Arteaga, Alexandra, Shallis, Rory M. , Guo, Landi, Oloyede, Temitope, Ahn, Kwang Woo , Byrne, Michael , Gowda, Lohith , Jakubowski, Ann A. , Litzow, Mark R. , Page, Kristin , Saber, Wael , Bejanyan, Nelli , Xu, Xinjie , Gomez-Arteaga, Alexandra , Nawas, Mariam T. , Guo, Landi, Bachanová, Veronika , Giralt, Sergio , Litzow, Mark R. , Milano, Filippo , Broglie, Larisa , Yared, Jean A.

Blood | December 4, 2025 | Volume: 146 | Issue: Supplement 1 | Pages: 1060-1060

10.1182/blood-2025-1060 Get It

Abstract Background: Acute myeloid leukemia (AML) with TP53 alteration (TP53alt), including deletion (TP53del) detected by cytogenetics (CG) (karyotype, FISH, or genomic microarray) and/or TP53 mutation (TP53mut) identified by next-generation sequencing, is associated with poor prognosis. However, a subset of patients may achieve long-term survival after allogeneic hematopoietic cell transplantation (allo-HCT). Patient-, disease-, and transplant-related variables may inform risk stratification and improve treatment decision-making in this high-risk population. We used the CIBMTR registry to investigate outcomes of patients with TP53alt AML undergoing allo-HCT. Methods: We included adult patients with 2017 ELN adverse-risk AML who underwent first allo-HCT between 2013–2019 and had available CG and molecular data. TP53del was centrally reviewed by expert cytogeneticist. Patients were stratified into three TP53alt groups: Group 1 (TP53mut+/ TP53del+), Group 2 (TP53mut −/ TP53del+), and Group 3 (TP53mut+/ TP53del −). The control group comprised patients with 2017 ELN adverse-risk AML negative for both TP53mut and TP53del. Patients from embargoed centers, lacking consent or comprehensive research data, or missing CG and molecular information were excluded. Results: Of 6,474 patients with adverse-risk AML, 703 patients with TP53alt met inclusion criteria: Group 1 (n=203), Group 2 (n=271), Group 3 (n=229). The control group included 2,763 patients. Median age was 58 years (44% ≥60); 44% were female; 16% had Karnofsky score <90, and 52% had HCT-CI ≥3. Secondary AML was more frequent in TP53alt groups (32%, 27%, 27%) versus control (21%) (p<.01). Complex and monosomal karyotypes were most common in Group 1 (61%), followed by Group 2 (54%), Group 3 (31%), and control (6%), p<.01. More patients in Groups 1 and 2 (28% each) underwent HCT in primary induction failure/relapse (PIF/Rel) versus Group 3 (19%) and control (19%), p<.01. Median time from diagnosis to transplant was 5 months (1-331). Donor type was matched related in 23%, matched or mismatched unrelated in 50%, haploidentical in 18%, and umbilical cord blood in 7%. Conditioning intensity was myeloablative (MA) in 51%; reduced-intensity (RIC) in 36% , and 13% non-MA (NMA). Post-transplant cyclophosphamide (PTCy) was used in 27%; and in vivo T-cell depletion (ATG or alemtuzumab) in 26%. After median follow-up of 66 months (3-130), 5-yr OS was 18% (Group 1), 18% (Group 2), 35% (Group 3) vs 46% in controls (p<0.001). 5-yr LFS was 14%, 15%, and 28%, respectively, vs 38% (p<0.001). 5-yr CIR was 69%, 66%, and 52% vs 43% (p<0.001). Transplant-related mortality (TRM) was similar across groups (1-year: 12–16%). On multivariate analysis, compared with controls, TP53del (with or without TP53mut) was independently associated with higher relapse risk: Group 1 HR 1.97, Group 2 HR 1.91, Group 3 HR 1.45 (all p<0.001). These findings translated into inferior OS (HR 1.94, 1.87, and 1.45, respectively, p<0.001). PIF/Rel and CR2+ were also associated with worse survival (HR 2.58 (p<0.001) and 1.18 (p<0.001, respectively). No significant difference was observed between MA and RIC for relapse, while non-myeloablative regimens (HR 1.65; p<0.001) were associated with higher CIR. In vivo T-cell depletion increased relapse risk (HR 1.22; p=0.004). TRM was not influenced by TP53alt status; it was impacted by age, KPS, time from diagnosis to HCT, and GVHD prophylaxis regiment (non-PTCy). Conclusions: This large, registry-based study with long term median follow-up showed that among patients with adverse-risk AML, TP53alt is a strong independent predictor of poor post-HCT outcomes in AML, particularly when TP53del is present. Patients with TP53del , with or without concurrent TP53mut, experienced the worst outcomes, followed by those with isolated TP53mut. Despite the limitations of registry data including lack of information on timing of TP53mut, variant allele frequency (VAF), number of mutations, or accurate information on measurable residual disease (MRD), these findings reinforce the adverse prognostic impact of TP53alt and support its inclusion in risk stratification frameworks. While some patients with TP53alt —particularly those with isolated mutations—may benefit from allo-HCT, relapse remains the dominant cause of failure. Future studies incorporating TP53 functional status, VAF, clonal architecture, specific CG, MRD, and novel transplant approaches are warranted.
Cefazolin versus alternative antibiotics for perioperative prophylaxis in patients labeled as cephalosporin allergic
Jackson, Jenna, Crockett, R. M., Loomis, Erica, Cole, Kristin, Schreier, Diana J., Hannan, Kellie Arensman, Corsini Campioli, Cristina , Crockett, Richard, Arensman Hannan, Kellie , Campioli, Cristina Corsini , Crockett, Richard, Cole, Kristin, Hannan, Kellie N. Arensman

Antimicrobial Stewardship & Healthcare Epidemiology | December 2, 2025 | Volume: 5 | Issue: 1 | Pages: No page available

10.1017/ash.2025.10221 | PMID 41446421 Get It

Evaluation of Emergency Medicine Pharmacist Participation in Time to Oral Anticoagulation Reversal: A Systematic Review and Meta‐Analysis
Brown, Caitlin S. , Engstrom, Kellyn , Faine, Brett , Mattson, Alicia E , Cole, Kristin, Acquisto, Nicole M. , Wieruszewski, Erin D. , Mercer, Kevin , Gerberi, Dana , Brown, Caitlin S , Faine, Brett A , Mattson, Alicia, Acquisto, Nicole M , Wieruszewski, Erin , Mercer, Kevin , Rech, Megan A , Gilbert, Brian W. , Cole, Kristin, Bellolio, Fernanda , Rabinstein, Alejandro A. , Rech, Megan A.

JACCP: JOURNAL OF THE AMERICAN COLLEGE OF CLINICAL PHARMACY | November 28, 2025 | Volume: 9 | Issue: 2 | Pages: No page available

10.1002/jac5.70156 | PMID 42009489 Get It

ABSTRACT Background Intracranial and extracranial hemorrhages are significant causes of morbidity and mortality. Emergency medicine pharmacists (EMPs) can play a crucial role in anticoagulation reversal by identifying patients on anticoagulation, selecting the optimal anticoagulation reversal agent, and ensuring adequate dosing and prompt administration. The goal of this systematic review and meta‐analysis was to determine the impact EMPs have on time to anticoagulation reversal and patient outcomes in anticoagulation‐associated hemorrhages. Methods A medical librarian performed a literature search in EBSCO CINAHL, Ovid Cochrane Central Register of Controlled Trials, Ovid Embase, Ovid Medline, Scopus, and Web of Science Core Collection from inception to January 2025 for all types of oral anticoagulants and for life‐threatening bleeding that required emergent reversal. Newcastle‐Ottawa was used to assess the risk of bias, and Grading of Recommendations Assessment, Development, and Evaluation (GRADE) was used to assess the level of certainty of the evidence. Random effects models estimating mean differences and 95% confidence intervals are reported. Results There were 2445 titles and abstracts screened, with 44 undergoing full‐text evaluation. Six observational studies including 219 patients who received an anticoagulation reversal agent with the presence of an EMP and 198 patients who received a reversal agent without an EMP were included. Time from emergency department (ED) presentation to anticoagulation reversal agent administration (75.60 min, 95% confidence interval [CI]: −101.7 to −49.5) and time from medication order to administration were faster with an EMP (−18.7 min, 95% CI: −23.5 to −14.0). There was no difference in short‐term mortality. The included studies had a high risk of bias and were deemed very low quality of evidence. Conclusion EMP involvement in patient care during anticoagulation reversal of acute hemorrhages improved time to anticoagulation reversal agent administration. Larger scale, higher‐quality studies are necessary to assess the value of EMPs in improving patient‐centered outcomes.
Lessons Learned in Clinical Trial Recruitment: A Partnership Between a Genomic Research Study and the Discover Together Biobank
Childers-Buschle, Kristin , Tracy, Morgan E, Myers, Melanie F. , McGowan, Michelle L. , Prows, Cynthia A. , Pauciulo, M., Myers, Melanie F

Biopreservation and Biobanking | November 22, 2025 | Volume: 24 | Issue: 4 | Pages: 291-300

10.1177/19475535251391616 | PMID 41271210 Get It

Collaboration between biobanks and research teams is essential for advancing scientific research, particularly in studies involving human subjects; however, various challenges can hinder success. We shed light on key obstacles and challenges encountered during a partnership between a clinical trial and an institutional biobank at a pediatric hospital. In aiming to recruit pediatric biobank participants for a genomic clinical research study, key challenges included low-yield recruitment tactics, independent operations and structures of the biobank and research teams, and transition to a new biobank model resulting in struggles with participant reengagement. This article explores some of the obstacles experienced by the research and biobanks teams, while providing key lessons aimed at guiding others in planning future collaborations for trial recruitment, enrollment, and implementation. We also highlight the significant benefits that can arise when biobanks and research teams work together strategically.
Efficacy and Safety of Varied Bisphosphonate Therapy Dosing in Patients With Hypercalcemia of Malignancy
Schultz, Sydney , Barreto, Jason N. , Cole, Kristin C., Wang, Yucai , Choong, Grace M. , Leung, Nelson , Schultz, Sydney E , Leung, Nelson , Wang, Yucai , Choong, Grace M , Cole, Kristin C.

JCO Oncology Practice | November 21, 2025 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1200/op-25-00543 | PMID 41270242 Get It

PURPOSE The difference in time to serum calcium normalization and rates of subsequent refractory hypocalcemia between bisphosphonates requires further investigation. Our primary objective was to assess the difference in normalization of serum calcium between pamidronate and zoledronic acid during treatment of hypercalcemia of malignancy (HCM) and rates of subsequent, refractory hypocalcemia following therapy. METHODS A retrospective review of patients with cancer who received pamidronate or zoledronic acid inpatient at Mayo Clinic for treatment of HCM between January 2018 and January 2024 was conducted. Logistic regression evaluated the association between treatment groups and outcomes. Multivariable modeling was adjusted for baseline differences, including severity of hypercalcemia. RESULTS We evaluated 856 patients. The median age was 68 (IQR, 59-75) years, and 476 (55.6%) were male. The most common cancer diagnoses were lymphoma (n = 158, 18.5%), followed by multiple myeloma (n = 145, 16.9%) and lung cancer (n = 111, 13%). Overall, 292 (46.8%) patients and 154 (32.8%) patients achieved serum calcium normalization by hospital day 4 and day 7, respectively. The rate of normalization was similar between all bisphosphonates, regardless of pamidronate dose. Significantly higher rates of hypocalcemia were observed on day 4 for patients who received zoledronic acid 4 mg once compared with either dose (60 mg once and 90 mg once) of pamidronate (40.7% v 27.6% v 26.8%, P = .049, respectively). No significant difference in rates of hypocalcemia were observed on day 7 (56.8% v 50% v 42.9%, P = .26, respectively) and day 30 (39.1% v 39.0% v 37.5%, P = .50, respectively). CONCLUSION Bisphosphonates were equally efficacious in normalizing serum calcium in patients with HCM. Pamidronate 90 mg was not more efficacious than 60 mg. Rates of refractory hypocalcemia were similar.
Androgen loss weakens anti-tumor immunity and accelerates brain tumor growth 3761
Silver, Daniel J. , Swanson, Kristin R. , Sharifi, Nima , Lathia, Justin D. , Swanson, Kristin R , Lee, Juyeun , Chung, Yoon‐Mi , Hao, Yue , Curtin, Lee , Nicosia, Michael , Berens, Michael E.

The Journal of Immunology | November 21, 2025 | Volume: 214 | Issue: Supplement_1 | Pages: No page available

10.1093/jimmun/vkaf283.1526 Get It

Abstract Description Many cancers, including glioblastoma (GBM), exhibit a male-biased incidence and outcome disparity, partially driven by sex hormones. While androgens are known to suppress anti-tumor T cell immunity in certain solid tumors, we found that androgens instead enhance anti-tumor immunity in brain tumors. Upon castration, tumor growth was accelerated in brain tumor models, while the opposite effect was observed for tumors located outside the brain. Decreased T cell function was observed in both tumors and peripheral lymphoid organs in castrated mice, indicated by reduced anti-tumor cytokines and increased T cell exhaustion. Mechanistically, this systemic immunosuppression was driven by hyperactivation of the hypothalamus-pituitary-adrenal (HPA) axis in castrated mice with brain tumors. Blocking glucocorticoid receptors reversed the accelerated tumor growth in these mice, confirming the role of HPA axis dysregulation. This mechanism was brain-specific rather than GBM-specific, as hyperactivation of the HPA axis was also observed with intracranial implantation of non-GBM tumors. Furthermore, elevated production of proinflammatory cytokines (IL-1β, TNF) in the brain of castrated mice was identified as a driver of HPA axis activation. Taken together, these findings reveal unique endocrine-mediated mechanisms by which brain tumor modulate systemic immunity in the androgen-deprived setting and highlight the importance of organ-specific effects of anti-tumor immunity. Funding Sources NIH P01CA245705; NIH R35NS127083; American Brain Tumor Association; Cleveland Clinic; Case comprehensive cancer center Topic Categories Tumor Immunology: Cellular Responses and Tumor Microevironment (TIME)
Antithrombin Supplementation in Extracorporeal Membrane Oxygenation: A Systematic Review With Meta‐Analysis
Elliott, Abigail G., Brinkman, Hannah M. , Seelhammer, Troy G. , Gerberi, Dana , Cole, Kristin C., Wittwer, Erica D. , Wieruszewski, Patrick M. , Klompas, Allan M. , Wieruszewski, Patrick M , Elliott, Abigail G., Cole, Kristin C.

Artificial Organs | November 20, 2025 | Volume: 50 | Issue: 6 | Pages: 797-808

10.1111/aor.70057 | PMID 41263426 Get It

ABSTRACT Background The Extracorporeal Life Support Organization recommends daily antithrombin monitoring and supplementation to achieve > 50%–80% activity during extracorporeal membrane oxygenation (ECMO). Evidence supporting this practice is uncertain, and whether it confers clinical benefit or harm is unclear. Methods This was a systematic review with meta‐analysis to evaluate the safety and efficacy of antithrombin supplementation during ECMO. We systematically searched databases and registers for studies comparing patients on ECMO who received antithrombin supplementation to those who did not. Random effects meta‐analysis was performed. Risk of bias was independently assessed by two investigators. A priori subgroup and sensitivity analyses were performed to explore reasons for heterogeneity. Results A total of 11 studies were identified. In the pooled meta‐analysis, antithrombin supplementation resulted in no difference in bleeding events (OR 1.38, 95% CI, 0.88–2.17, p = 0.16), thrombotic events (OR 1.57, 95% CI, 0.84–2.90, p = 0.15), or mortality (OR 1.21, 95% CI, 0.81–1.81, p = 0.35) when compared to those who did not receive antithrombin. Subgroup analysis revealed no difference in bleeding events or mortality in pediatric or adult patients; however, pediatric patients that received antithrombin were more likely to experience a thrombotic event (OR 1.70, 95% CI, 1.51–1.91). Sensitivity analysis in only low risk of bias studies confirmed these findings. Conclusions Antithrombin supplementation was not associated with differences in mortality or hemostatic outcomes during ECMO support and may be associated with harm in pediatric patients on ECMO.
TMET-53. Characterizing the metabolic landscape of high-grade glioma with respect to transcriptional subtype and imaging region
Singleton, Kyle , Canoll, Peter, Swanson, Kristin R. , Swanson, Kristin R , Curtin, Lee , Jackson, Pamela

Neuro-Oncology | November 11, 2025 | Volume: 27 | Issue: Supplement_5 | Pages: v440-v440

10.1093/neuonc/noaf201.1744 Get It

Abstract High-grade glioma (HGG) continues to have a dismal prognosis owing in part to its heterogeneous and invasive nature both within and between patients. The most aggressive form of high-grade glioma, called glioblastoma, portends a median survival of around 15 months. Like many cancers, high-grade glioma rewires metabolism towards its own benefit, shifting away from the typical reliance of brain tissue on glucose towards other sources such as fatty acids and acetate. Using a cohort of image-localized high-grade glioma biopsies collected from diverse imageable regions with associated transcriptomics (58 patients, 202 biopsies), we are able to assess the spatial transcriptomic landscape of HGG. We have previously shown that the transcriptome of HGG can be characterized into a continuous transition between states, and we have shown that the cellular ecosystem follows a similar pattern, using a combination of trajectory inference and cellular deconvolution. These patterns are strongly associated with the non-enhancing and contrast-enhancing regions of the tumors, which are typically considered for treatment planning and progression assessment. Here, we applied differential expression of hallmark pathways to determine how metabolism factors into this paradigm. As expected, we find overall higher levels of metabolism-associated pathway expression in the contrast enhancing regions compared to the non-enhancing regions. Interestingly, we found metabolic expression differs between the ecologies associated with transcriptional subtypes of high-grade glioma. For example, fatty acid (p=0.003), xenobiotic (p<0.0001) and heme (p<0.0001) metabolism pathways were significantly upregulated for mesenchymal tumor samples, while significantly downregulated for proliferative tumor samples (p=0.02, p<0.0001, p<0.0001, respectively). As we continue to further understand the complex spatial and temporally heterogeneous landscape of these aggressive tumors, it is important to consider the metabolites on which they depend, to better inform prognosis and develop new treatments.
IMG-140. A network-based approach links novel patterns of multiparametric MRI to clinically relevant molecular signatures in high-grade glioma
Kenaston, Matthew W. , Flick, Matthew J. , Sereduk, Christopher, LaFond, Gabe, Langworthy, Jazlynn , Spahiu, Albana, Turkmani, Ali , Krishna, Chandan , Patra, Devi P. , Zimmerman, Richard S. , Swanson, Kristin R. , Tran, Nhan L. , Hu, Leland , Swanson, Kristin R , Tran, Nhan L , Flick, Matthew, Sereduk, Chris , Curtin, Lee , Baxter, Leslie C. , Bendok, Bernard R. , Kannan, Kasthuri S. , Ceccarelli, Michele

Neuro-Oncology | November 11, 2025 | Volume: 27 | Issue: Supplement_5 | Pages: v308-v308

10.1093/neuonc/noaf201.1218 Get It

Abstract High-grade gliomas (HGG) have significant spatial heterogeneity, complicating therapeutic approaches. While multiparametric MRI (mpMRI) enables noninvasive assessment of this heterogeneity, most predictive models lack biological interpretability when used to classify or predict outcomes. Here, we developed an unsupervised framework that identifies novel mpMRI feature patterns through dimensional reduction, linking them to clinically relevant molecular signatures. We analyzed 18 advanced mpMRI features from 73 stereotactic biopsies across 20 HGG patients. Imaging data were normalized, followed by dimensional reduction using an iterative UMAP across varying parameters. Density-based clustering was used to generate stable image-derived clusters through consensus co-clustering. RNA-seq data from matched biopsies were analyzed using DESeq2 and GSEA to identify differentially expressed genes and enriched pathways. We then constructed a network linking specific imaging features to these transcriptional signatures. Validation was performed in an independent cohort, allowing us to extend clusters across full brain mpMRI. Unsupervised clustering of mpMRI features produced nine stable image-based clusters. These clusters were not fully explained by contrast enhancement, metabolic class, or tumor purity, shown by intraclass correlation (ICC) analyses, suggesting they capture novel biological variation. Transcriptomic analysis showed each cluster was associated with distinct gene expression patterns and enriched biological pathways, including neuronal differentiation, immune chemotaxis, and chromatin remodeling. Key imaging features (sRCBV, MTT, K2)—combined in cluster-specific patterns—enabled construction of an interpretable imaging–transcriptomic network. This was validated in an independent cohort. We then applied to full brain mpMRI, mapping spatially distinct regions to biological trends and patient outcomes. Addressing a research gap in imaging HGG, we present an interpretable network that connects specific patterns of mpMRI to clinically meaningful molecular signatures. This approach advances our understanding of tumor heterogeneity and supports future translational work in precision patient care.