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Patient preferences and factors affecting patient treatment decisions for chronic lymphocytic leukemia (CLL) in Japan
Shibayama, Hirohiko, Suzumiya, Junji, Matsuno, Kuniharu, Kiyose, Kazuki, Xue, Mei, Meng, Yan, Totev, Todor I., Chen, Zhuo, Yang, Keri, Ailawadhi, Sikander, Shibayama, Hirohiko, Suzumiya, Junji, Matsuno, Kuniharu, Kiyose, Kazuki, Xue, Mei, Meng, Yan, Totev, Todor I., Chen, Zhuo, Yang, Keri, Ailawadhi, Sikander

Mayo Clinic

Blood | December 4, 2025 | Volume: 146 | Issue: Supplement 1 | Pages: 4406-4406

10.1182/blood-2025-4406 Get It

Abstract Introduction: Bruton tyrosine kinase inhibitors (BTKis) have transformed the treatment landscape for CLL, offering significant improvement in patient outcomes. Despite the widespread adoption of BTKis and their proven clinical benefits, data on the treatment preferences and priorities of patients with CLL in Asia, particularly in Japan, are limited. Understanding patient preference is critical for optimizing clinical decision-making and tailoring treatment strategies for Japanese patients. A comprehensive quantitative analysis was conducted to evaluate patient preferences for covalent BTKi treatment attributes and trade-offs among these attributes. Methods: An online survey applying discrete choice experiment (DCE) methodology was administered between April 29 and June 30, 2025 to Japanese adults (≥18 years of year) diagnosed with CLL. The design of DCE attributes and levels was informed by literature review and clinical consultations. Treatment attributes included efficacy (i.e., progression-free survival [PFS]), safety (i.e., impacts of diarrhea, headache, atrial fibrillation, and hypertension on quality of life [QoL]), and convenience (i.e., formulation type including tablet or capsule, and dosing frequency including once daily or twice daily). A conditional logistic regression was applied to estimate preference weights, which were used to calculate the relative importance as well as willingness-to-tradeoff between BTKi treatment attributes. Results: The study included 50 patients (mean age: 62 years; 30% female; 38% employed full-time; 60% reported no comorbid conditions). More than half (60%) were diagnosed ≥5 years ago. Around one quarter (24%) were treatment naive, and 76% received ≥1 treatment (40% first-line, 26% second-line and 10% third-line or later). Most patients (82%) reported living with or near their caregiver. In terms of travel time to obtain CLL medication, 46% reported travel time of one hour, 40% traveled less than 30 minutes, and 14% traveled more than two hours. The majority of patients (66%) were using High-Cost Medical Expense Benefit, while an additional 10% were either currently applying or planning to apply. In general, patients preferred treatments with less impact of AEs on QoL, higher efficacy, and less dosing frequency (P<.05). The top three treatment attributes with the highest relative importance were the impact of atrial fibrillation (24.7%) and diarrhea (21.0%) on QoL, and PFS (15.8%), followed by impact of headache (15.7%) and hypertension (14.1%) on QoL, dosing frequency (7.8%), and formulation type (capsule or tablet) (0.9%). Patients were willing to trade off PFS for improved quality of life: accepting reductions of 3.1 years for less impact from atrial fibrillation, 2.7 years for diarrhea, 2.0 years for headache, and 1.8 years for hypertension (none or mild vs. significant impact). Additionally, they were willing to accept a reduction of 1.0 years of PFS to receive a treatment given once daily rather than twice daily.Conclusions: This is the first quantitative assessment of treatment preferences among Japanese patients with CLL using a DCE approach. Findings from this study provide valuable Japan-specific insights, highlighting that although efficacy is important, patients prioritize safety factors, such as the impact of atrial fibrillation and diarrhea on QoL. These findings support the integration of patient perspectives into treatment planning to enhance shared decision-making, personalize care, and promote better adherence to long-term therapies in CLL management.
KMT2Ar, but not other high-risk genetics, adversely impacts outcomes in adult patients with relapsed/refractory (R/R) Philadelphia chromosome negative B-cell acute lymphoblastic leukemia (B-ALL) treated with brexucabtagene autoleucel (Brexu-cel)
Leonard, Jessica, Ladha, Abdullah, Faramand, Rawan, Roloff, Gregory, Valtis, Yannis, Tan, Virginia, Miller, Katharine, Zhang, Amy, Grunwald, Michael, Kota, Vamsi, Boccucci, Jacob, Ulrickson, Matthew, Al-Darobi, Ali, Hill, LaQuisa, Muhsen, Ibrahim, Sasine, Joshua, Advani, Anjali, Sandhu, Karamjeet, Reshef, Ran, Luskin, Marlise, Chen, Evan, Lin, Chenyu, Cassaday, Ryan, Kopmar, Noam, Solh, Melhem, Lee, Catherine, Bobillo, Silvina Odstrcil, Tsai, Stephanie, O'Connor, Timothy, Hilal, Talal, Park, Jae, Vasu, Sumithira, Bezerra, Evandro, O'Dwyer, Kristen, Moore, Jozal, Wang, Eunice, McCauley, Ross, Majhail, Navneet, Ramakrishnan, Aravind, Mountjoy, Luke, Malik, Shahbaz, Battiwalla, Minoo, Shaughnessy, Paul, Mathews, John, Srinagesh, Hrishikesh, Sutherland, Katherine, Jamy, Omer, Mohty, Razan, Kumaran, Muthu, Hoeg, Rasmus, Oliai, Caspian, Lill, Georgia, Stock, Wendy, Schwartz, Marc, Othman, Tamer, Koura, Divya, Dykes, Kaitlyn, Logan, Aaron, Daunov, Michael, Byrd, Ken, Yalniz, Fevzi, Bachanova, Veronika, Tracy, Sean, Grover, Punita, Connor, Matthew, Yaghmour, George, Gatell, Vivian Irizarry, Jackson, Clayton, Oluwole, Olalekan, Dholaria, Bhagirathbhai, Frey, Noelle, Muffly, Lori, Shah, Bijal, Aldoss, Ibrahim, Muffly, Lori , Muffly, Lori , Leonard, Jessica, Ladha, Abdullah, Faramand, Rawan, Roloff, Gregory, Valtis, Yannis, Tan, Virginia, Miller, Katharine, Zhang, Amy, Grunwald, Michael, Kota, Vamsi, Boccucci, Jacob, Ulrickson, Matthew, Al-Darobi, Ali, Hill, LaQuisa, Muhsen, Ibrahim, Sasine, Joshua, Advani, Anjali, Sandhu, Karamjeet, Reshef, Ran, Luskin, Marlise, Chen, Evan, Lin, Chenyu, Cassaday, Ryan, Kopmar, Noam, Solh, Melhem, Lee, Catherine, Bobillo, Silvina Odstrcil, Tsai, Stephanie, O'Connor, Timothy, Hilal, Talal, Park, Jae, Vasu, Sumithira, Bezerra, Evandro, O'Dwyer, Kristen, Moore, Jozal, Wang, Eunice, McCauley, Ross, Majhail, Navneet, Ramakrishnan, Aravind, Mountjoy, Luke, Malik, Shahbaz, Battiwalla, Minoo, Shaughnessy, Paul, Mathews, John, Srinagesh, Hrishikesh, Sutherland, Katherine, Jamy, Omer, Mohty, Razan , Kumaran, Muthu, Hoeg, Rasmus, Oliai, Caspian, Lill, Georgia, Stock, Wendy, Schwartz, Marc, Othman, Tamer, Koura, Divya, Dykes, Kaitlyn, Logan, Aaron, Daunov, Michael, Byrd, Ken, Yalniz, Fevzi, Bachanova, Veronika, Tracy, Sean, Grover, Punita, Connor, Matthew, Yaghmour, George, Gatell, Vivian Irizarry, Jackson, Clayton, Oluwole, Olalekan, Dholaria, Bhagirathbhai, Frey, Noelle, Shah, Bijal, Aldoss, Ibrahim

Mayo Clinic

Blood | December 4, 2025 | Volume: 146 | Issue: Supplement 1 | Pages: 3365-3365

10.1182/blood-2025-3365 Get It

Abstract Introduction: Brexu-cel is a highly effective treatment for R/R B-ALL, with complete responses achieved in 71% of patients (pts) treated in the pivotal ZUMA-3 trial. Patients with B-ALL with high-risk (HR) genetics are known to have inferior outcomes with chemotherapy, but little is known about the influence of HR ALL genetics on responses to chimeric antigen receptor (CAR)-T in adults. In this study, we assessed the impact of HR ALL genetics on outcomes in a large cohort of adult patients treated with brexu-cel for R/R Philadelphia chromosome (Ph)-negative B-ALL. Methods: Patient characteristics and outcomes were obtained from the Real-World Outcomes Collaborative of CAR-T in Adult ALL (ROCCA) database which includes data from 40 U.S. centers. NCCN guidelines (NCCN Guidelines in Oncology, ALL v2.2025) were used to define HR B-ALL genetics; lack of HR genetics was defined as standard-risk (SR). The primary outcome was event-free survival (EFS), defined as lack of response, disease progression, or death from any cause. Secondary outcomes were overall survival (OS), relapse free survival (RFS) and response rates including complete response (CR), CR incomplete count recovery (CRi), measurable residual disease negative CR (MRD-) by flow or NGS and progressive disease (PD). Multivariable models were adjusted for age, pre-infusion blast percentage, prior allo-HCT, and post CAR-T allo-HCT (modeled as a time-varying covariate). Results: The cohort included 286 pts: 169 with HR and 117 with SR B-ALL. The HR cohort included TP53m (n=24, 14%), KMT2Ar (n=16, 9%), CRLF2r (n=65, 39%) and other HR genetics such as JAK2 and other Ph-like, IKZF1, complex cytogenetics (n=64, 38%). Relative to SR pts, HR pts were more commonly Hispanic (50% vs 28%). HR and SR pts had similar disease burden pre-apheresis (>5% blasts: 58% vs 53%), prior blinatumomab (60% vs 58%), prior inotuzumab (42% vs 46%), and prior allo HCT (27% vs 37%). The presence of CNS disease (11% HR vs 12% SR) and extramedullary disease (EMD, 22% HR vs 29% SR) at apheresis was also similar. CR/CRi was achieved in 90.5% of evaluable HR pts (n=147) and 90.2% of evaluable SR pts (n=102); MRD- rates were also similar between HR and SR pts at 78.9% and 78.2% respectively. In unadjusted analyses, EFS did not significantly differ between HR pts (median 9.6 mos; 1-yr: 46%, 95% CI 38%-54%) and SR pts (median 11.6 mos; 1-yr: 48%, 95% CI 38%- 58%). Median RFS (HR: 12.2 mos, SR: 13.3 mos) and median OS (HR: 22.4 mos, SR: 21.0 mos) were also similar. Multivariable models demonstrated no significant associations between HR B-ALL and EFS (HR 1.09, 95% CI 0.73-1.63), RFS (HR 1.13, 95% CI 0.71-1.80), or OS (HR 0.96, 95% CI 0.62- 1.48) relative to SR ALL. 28% of HR patients and 21% of SR patients underwent consolidative allo-HCT. Among the HR subgroup, CR/CRi rate was lowest in KMT2Ar (71%) relative to TP53m (95%), CRLF2r (95%), and other HR genetics (89%). The median EFS was lowest in KMT2Ar (4.1 mos), followed by TP53m (6.9 mos), CRLF2r (11.6 mos), and other HR (11.1 mos). Median OS was also lowest in KMT2Ar (6.8 mos) vs 22.4 mos in TP53m and not reached in CRLF2r or other HR. PD was highest in KMT2Ar pts (29%), as compared to 11% HR other, 10% SR, and 5% TP53 and CRLF2r. The rate of relapse among those that achieved CR across the groups was similar and ranged between 28% -40%. Rates of CD19 negative relapse were similar between all subgroups (13%-15%), however 21% of KMT2A pts underwent myeloid transformation as compared 0% for TP53 and CRLF2 pts, and 2% among other HR and SR pts. 25% of KMT2Ar patients underwent consolidative allo-HCT as compared to 32% CRLF2 pts, 29% TP53 pts, 25% other HR pts and 21% SR pts. Multivariable models evaluating the different genomic subgroups demonstrated that relative to SR B-ALL, only KMT2Ar was associated with inferior OS (HR 3.17, 95% CI 1.53-6.58, p=0020). No associations were seen between HR subgroups and EFS. Conclusion: To our knowledge, this analysis represents the largest examination of adult B-ALL recipients of CAR-T assessed by genomic risk group. We found that response rates and survival outcomes following brexu-cel were similar among HR and SR B-ALL pts, including pts with TP53m and CRLF2r. However, pts with KMT2Ar had lower response rates and dismal EFS and OS, with higher rates of PD and myeloid transformation at relapse, suggesting that alternative strategies are necessary to improve outcomes for patients with R/R KMT2Ar B-ALL.
Gene expression profiling reveals 2 overarching types of ALCL with distinct targetable biology: an LLMPP study
Feldman, Andrew L. , Dasari, Surendra, Scott, David W. , Oishi, Naoki , Hu, Guangzhen , Farinha, Pedro , Amador, Catalina , Campo, Elı́as , Cook, James R. , Fu, Kai , Greiner, Timothy C. , Iqbal, Javeed , Ondrejka, Sarah L. , Ott, G., Rosenwald, Andreas , Slack, Graham W. , Wright, George, Zeng, Yu , Yoshino, Tadashi, Wu, Xiaojun , Satou, Akira , Perry, Anamarija M. , Mou, Eric , Ko, Young Hyeh , Jiang, Liuyan , Gru, Alejandro A. , Chen, Weina , Chapman, Jennifer R. , Ansell, Stephen M. , Aljudi, Ahmed Assim , Scott, David W , Oishi, Naoki , Farinha, Pedro , Amador, Catalina , Campo, Elías , Cook, James R , Delabie, Jan , Greiner, Timothy C , Hilton, Laura K , Inghirami, Giorgio , Jaffe, Elaine S , Morin, Ryan D , Ondrejka, Sarah , Pittaluga, Stefania , Savage, Kerry J , Slager, Susan L , Wang, Hao-Wei , Wu, Xiaojun , Wilcox, Ryan A , Shi, Min , Miranda, Roberto N , Medeiros, L Jeffrey , Maurer, Matthew , Mou, Eric , Karube, Kennosuke , Gru, Alejandro , de Leval, Laurence , Chen, Weina , Cerhan, James R , Barrionuevo, Carlos , Aljudi, Ahmed Assim , Feldman, Andrew L , Iqbal, Javeed , Rimsza, Lisa M. , Chan, Wing C., Delabie, Jan , Hilton, Laura K. , Inghirami, Giorgio , Jaffe, Elaine S. , Pittaluga, Stefania , Raess, Philipp W. , Savage, Kerry J. , Slager, Susan L. , Song, Joo Y. , Wang, Hao‐Wei , Wilcox, Ryan A. , Wang, Xueju , Miranda, Roberto N. , Medeiros, L. Jeffrey , Maurer, Matthew J. , Karube, Kennosuke , Kahl, Brad S. , Jaye, David L. , Leval, Laurence de , Cerhan, James R.

Mayo Clinic

Blood | December 2, 2025 | Volume: 147 | Issue: 11 | Pages: 1199-1214

10.1182/blood.2024027700 | PMID 41329859 Get It

Abstract Anaplastic large cell lymphomas (ALCLs) are CD30+ T-cell lymphomas that share pathologic features but differ in presentation, outcome, and genetics. Current classification incorporates clinical presentation and anaplastic lymphoma kinase (ALK) status but inadequately addresses molecular heterogeneity and therapeutic vulnerabilities. We studied 689 patients with ALCL in the LLMPP (Lymphoma/Leukemia Molecular Profiling Project) and performed expert consensus review, genetic subtyping (ALK, DUSP22, TP63, and triple negative), and immunohistochemistry for phosphorylated STAT3Tyr705. RNA sequencing with unsupervised gene expression profiling in 393 patients identified 2 main molecular types of ALCL that could be predicted with 91% accuracy based on the presence (type I) or absence (type II) of phosphorylated STAT3Y705 expression. Type I ALCLs included ALK+ ALCL and a subset of triple-negative ALCLs (TN-I); type II ALCLs included tumors with DUSP22 and/or TP63 rearrangements and the remaining triple-negative ALCLs (TN-II). Type I ALCLs were enriched for JAK-STAT3, whereas type II ALCLs were enriched for non–tyrosine kinase pathways, particularly epigenetic regulators such as EZH2. Immunohistochemistry showed overexpression of EZH2 and its trimethylated substrate H3K27. Prognosis in systemic ALCL was favorable for DUSP22-rearranged ALCL (5-year overall survival, 95%) and ALK+ ALCL (88%), intermediate for triple-negative ALCL (TN-I, 52% and TN-II, 37%), and poor for TP63-rearranged ALCL (0%). We introduce an integrated molecular classification that preserves currently diagnosed ALCL entities but identifies 4 molecularly distinct ALK− ALCL subtypes (DUSP22-rearranged, TP63-rearranged, TN-I, and TN-II). This classification can be easily implemented on paraffin tissue in routine practice or clinical trials, and stratifies ALCL into diagnostically, prognostically, biologically, and potentially therapeutically relevant subtypes.
Abstract 147: Retinal Vascular Alterations Discriminate Subjects with Neurodegeneration in the UK Biobank
Wang, V. , Dumitrașcu, Oana , Chen, Kewei

Mayo Clinic

Stroke: Vascular and Interventional Neurology | December 2, 2025 | Volume: 5 | Issue: S1 | Pages: No page available

10.1161/svi270000_147 Get It

Background Retinal vascular imaging offers a non‐invasive window into the central nervous system health and has shown promise in the study of neurodegenerative diseases. Emerging evidence highlights that Parkinson's disease (PD) exhibits structural and functional changes in the retina, including vascular alterations. This pilot study evaluated whether retinal vascular morphological features, quantified using the deep learning tool Automorph, discriminate PD from non‐PD subjects in the UK Biobank cohort. Methods We analyzed color fundus photographs (CFPs) from 303 PD participants (mean age 62.6 ± 5.4 years, hypertension (HTN) = 67%, diabetes mellitus (DM) = 13%) and 516 non‐PD controls (age = 55.9±8.1, HTN = 22.8%, DM = 3%) enrolled in the UK Biobank. Six retinal vascular morphology features were quantified: fractal dimension, vessel density, average width, distance tortuosity, squared curvature tortuosity, and tortuosity density. General linear models were used to assess group differences while adjusting for age, hypertension, and diabetes. We also evaluated the association between retinal features and age, and the left‐right eye retinal fractal measures correlations using Pearson correlation and Fisher Z‐test. Results Compared to non‐PD individuals, PD patients showed significantly altered retinal vessel average width, both without (p = 0.001) and with (p = 0.002) vascular covariate adjustment. Group‐by‐age interaction effects were also significant for fractal dimension (p = 0.010) and vessel density (p = 0.023). Furthermore, inter‐eye correlation of vessel density differed significantly between groups (p = 0.034), suggesting altered bilateral vascular symmetry in PD. Conclusion Measurable alterations in retinal vascular morphology in PD support the potential of retina vascular imaging for non‐invasive neurodegenerative disease research. These results warrant further validation in larger cohorts, with improved analytic robustness and automated retinal vascular grading.
Evaluation of platelet dense granules by transmission electron microscopy in healthy pediatric donors and pediatric patients with suspected platelet disorders
Greenmyer, Jacob R. , Howell, Kyle G., Johnson, Brandi, Drapeau, Noelle, Stromback, Lindsay R., Charlesworth, Jon E. , Gossman, Susan C., Gamez, Jeffrey D., Pruthi, Rajiv K. , Chen, Dong , Fischer, Karen M. , Warad, Deepti

Mayo Clinic

Platelets | November 28, 2025 | Volume: 36 | Issue: 1 | Pages: No page available

10.1080/09537104.2025.2590752 | PMID 41312564 Get It

FLI1 -related thrombocytopenia: piecing together the story
Chen, Dong, Godby, Richard , Chen, Dong

Mayo Clinic

Blood | November 27, 2025 | Volume: 146 | Issue: 22 | Pages: 2728-2728

10.1182/blood.2025030799 | PMID 41307932 Get It

Tissue Microarray-Based Digital Spatial Profiling of Benign Breast Lobules and Breast Cancers: Feasibility, Biological Coherence, and Cross-Platform Benchmarks
Carter, Jodi C., Vierkant, Robert A. , Pacheco-Spann, Laura M. , Vachon, Celine M. , Jensen, Matthew R. , Thompson, E. Aubrey , Kachergus, Jennifer M., Shi, Ji , Radisky, Derek C. , Vierkant, Robert A , Stallings-Mann, Melody, Pacheco-Spann, Laura M , Kachergus, Jennifer, Shi, Ji , Radisky, Derek C , Sherman, Mark E. , Carter, Jodi C., Stallings‐Mann, Melody , Winham, Stacey J. , Vachon, Celine M. , Wang, Chen , Troester, Melissa A. , Degnim, Amy C.

Mayo Clinic

Cancers | November 27, 2025 | Volume: 17 | Issue: 23 | Pages: 3797

10.3390/cancers17233797 | PMID 41374998 Get It

Background: Discovering risk biomarkers in small benign breast disease (BBD) biopsies is constrained by scarce tissue and microanatomic heterogeneity of terminal duct lobular units (TDLUs). We tested whether tissue-sparing tissue microarray (TMA)–based Digital Spatial Profiling (DSP) can deliver reproducible, biologically coherent protein measurements across benign lobules and breast cancers (BCs), and how well DSP aligns with standard immunoassays. Methods: We performed a pilot using tissues from the Mayo Clinic BBD cohort using TMAs representing four contexts: terminal duct lobular units (TDLUs) from BBD biopsies preceding BC and matched BBD-controls, subsequent BCs, and BC-associated TDLUs. We profiled 79 proteins by DSP (37 retained after QC) and benchmarked against chromogenic IHC and OPAL immunofluorescence. Reproducibility was evaluated using intraclass correlation coefficients (ICCs), cross-platform agreement (weighted kappa), marker correlations, and mixed-effects models with false-discovery-rate (FDR) control. Results: We analyzed 368 BBD-TDLU cores (88 cases; 88 controls), 204 BC cores and 110 BC-associated TDLU cores. ICCs were highest in BC tissues, and lower in BC-associated TDLUs and BBD-TDLUs. Agreement was slight–to-fair in TDLUs but moderate (ER/PR) to substantial (BCL2) in BC. DSP recapitulated expected immunologic correlations (CD45 with T-cell, B-cell, and macrophage markers) and tissue-type gradients (BC > BC-associated TDLUs > BBD-TDLUs). Exploratory case–control differences in BBD-TDLUs did not persist after FDR control. Conclusions: TMA-based DSP is feasible in archival breast tissues and yields biologically coherent, cross-platform-benchmarked profiles that are particularly robust in BC, while conserving scarce TDLUS and clarifying current limits of single-marker risk stratification from benign lobules. These data provide a foundation for refined sampling and expanded panels in future TDLU-focused studies.
A Ciliary Phosphoinositide Pathway Regulates the Dosage of Polycystins in Primary Cilia
Wang, Zhifei , Ellis, Madilyn R. , Ji, Biyun , Sieben, Cynthia J. , Haycraft, Courtney J. , Croyle, Mandy J. , Aghevli, Ariana, Xu, Qingwen , Robichaud, Jielu Hao, Huang, Yan , Yoder, Bradley K. , Hu, Jinghua , Yu, Yong , Ling, Kun , Chen, Chuan , Wang, Zhifei , Gao, Yue, Ellis, Madilyn R , Ji, Biyun , Sieben, Cynthia J , Croyle, Mandy , Xu, Qingwen , Robichaud, Jielu H, He, Kai , Huang, Yan , Yoder, Bradley K , Harris, Peter C , Yu, Yong , Ling, Kun , Chen, Chuan , Gao, Yue , Hao, Jielu , He, Kai , Chen, Chunhua , Harris, Peter C.

Mayo Clinic

Journal of the American Society of Nephrology | November 25, 2025 | Volume: 37 | Issue: 5 | Pages: 944-958

10.1681/asn.0000000942 | PMID 41563398 Get It

Key Points Inositol polyphosphate-5-phosphatase E (INPP5E) and type Ig phosphatidylinositol-4-phosphate 5-kinase (PIPKIγ) coordinated the homeostasis of phosphatidylinositol-4-phosphate and phosphatidylinositol-4,5-bisphosphate in primary cilia. Modulating INPP5E or PIPKIγ activity changed the level of polycystin-1 and polycystin-2 in primary cilia. INPP5E inhibition increased the hypomorphic PKD1 variants (PC1-R3277C) in cilia and reduced cystogenesis in the kidney in vitro . Background Autosomal dominant polycystic kidney disease is mainly caused by mutations in PKD1 and PKD2 , which encode polycystin-1 (PC1) and polycystin-2 (PC2), respectively. PC1 and PC2 assemble a cation channel complex enriched in primary cilium, a sensory organelle associated with various developmental diseases, including polycystic kidney disease (PKD). Accumulating evidence supports the necessity of functional polycystin (PC) complex in cilia to prevent cystogenesis in the kidney, indicating that improving their ciliary levels may ameliorate defects underlying PKD pathogenesis. Yet, molecular mechanisms underlying the ciliary targeting and homeostasis of the PC complex are not fully understood. Methods Indirect immunofluorescence microscopy was used to monitor ciliary levels of PC1 and PC2 in renal epithelial cells. Electrophysiology analysis in oocytes was used to determine the channel activity of the PC complex. Cystogenesis in the kidney was measured using in vitro 3D-Matrigel cell models and ex vivo mouse embryonic kidney models. Results Suppressing inositol polyphosphate-5-phosphatase E (INPP5E) or activating type Ig phosphatidylinositol-4-phosphate 5-kinase raised ciliary levels of the PC complex in both normal renal epithelial cells and cells carrying autosomal dominant polycystic kidney disease mutations that interrupt the trafficking of PCs into cilia, including GANAB inactivation and the trafficking PKD1 mutation p.Arg3277Cys (RC). PC1 RC formed a complex with PC2 and exhibited normal channel activity in vitro . An INPP5E that increases PC1 and PC2 in cilia, suppressed in vitro forskolin-induced cystogenesis of inner medullary collecting duct epithelial cell line 3 cells in 3D Matrigel and ex vivo cyst formation in embryonic Pkd1 RC/RC mouse kidneys. Conclusions Our results demonstrated that increasing the ciliary level of PCs, by manipulating a ciliary phosphoinositide signaling axis, enhanced the functionality of PCs and suppressed cystogenesis of renal epithelial cells in vitro .
Deep Learning for CT Synthesis in Radiotherapy
Guo, Yike, Luo, Yi , Hooshangnejad, Hamed , Zhang, Rui , Feng, Xue , Chen, Quan , Ngwa, Wilfred , Ding, Kai , Chen, Quan , Feng, Xue , Ding, Kai , Guo, Yike

Mayo Clinic

Bioengineering | November 25, 2025 | Volume: 12 | Issue: 12 | Pages: 1297

10.3390/bioengineering12121297 | PMID 41463594 Get It

With the rapid development of artificial intelligence (AI), various deep learning (DL) methods have been introduced into radiation oncology. Among them, the generation of synthetic Computed Tomography (sCT) images has attracted increasing attention, as it supports different clinical scenarios, from image-guided adaptive radiotherapy (IGART) to the simulation-free workflow. This review provides a comprehensive overview of recent studies on DL-based sCT synthesis in radiotherapy from multiple imaging modalities, including Cone-Beam CT (CBCT), Magnetic Resonance Imaging (MRI), and diagnostic CT, and discusses their clinical applications in CBCT-based online adaptive radiotherapy, MRI-guided radiotherapy, and simulation-free workflows. We also examine the architectures of representative DL models such as convolutional neural networks (CNNs) and generative adversarial networks (GANs) and summarize emerging training strategies. Finally, we discuss current challenges of clinical translation of DL algorithms into clinical practice and suggest potential directions for future research. Overall, this paper highlights the potential of AI-driven sCT generation to advance treatment planning by reducing imaging burden, improving dose accuracy, and accelerating workflow efficiency, thus ultimately improving the treatment outcome of patient care.