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Freret ME, Boire A. The anatomic basis of leptomeningeal metastasis. J Exp Med 2024; 221:e20212121. [PMID: 38451255 PMCID: PMC10919154 DOI: 10.1084/jem.20212121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 09/20/2022] [Accepted: 02/08/2024] [Indexed: 03/08/2024] Open
Abstract
Leptomeningeal metastasis (LM), or spread of cancer to the cerebrospinal fluid (CSF)-filled space surrounding the central nervous system, is a fatal complication of cancer. Entry into this space poses an anatomical challenge for cancer cells; movement of cells between the blood and CSF is tightly regulated by the blood-CSF barriers. Anatomical understanding of the leptomeninges provides a roadmap of corridors for cancer entry. This Review describes the anatomy of the leptomeninges and routes of cancer spread to the CSF. Granular understanding of LM by route of entry may inform strategies for novel diagnostic and preventive strategies as well as therapies.
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Affiliation(s)
- Morgan E. Freret
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Adrienne Boire
- Department of Neurology, Human Oncology and Pathogenesis Program, Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Freret ME, Tringale KR, Boe L, Imber BS, Joffe E, Yahalom J, Hajj C. Very low-dose radiotherapy for extranodal marginal zone lymphoma of bronchus-associated lymphoid tissue. Leuk Lymphoma 2023; 64:2195-2201. [PMID: 37706509 PMCID: PMC10962616 DOI: 10.1080/10428194.2023.2255706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/15/2023]
Abstract
Extranodal marginal zone lymphoma of bronchus-associated lymphoid tissue (BALT) is a rare cancer for which optimal treatment strategies are undefined. Retrospective analyses suggest excellent outcomes with surgical resection for localized BALT lymphoma; however, the role of radiotherapy remains underexplored. We report the largest-to-date single-center analysis of 13 primary BALT lymphoma patients treated with radiotherapy. Of 15 treated lesions, we report a 100% response rate with complete response (CR) achieved in 67% of lesions. Among 10 lesions treated with very low-dose radiotherapy (VLDRT; 4 Gray [Gy]), 6 (60%) achieved a CR; among 5 lesions treated with full-dose radiotherapy (24-36 Gy), 4 (80%) achieved a CR. There were no local recurrences. Only one patient, treated with 30 Gy, developed an acute grade 3/4 toxic effect. There were no events of radiation-induced secondary malignancies. Our institutional experience indicates that radiotherapy, including VLDRT, is a safe and effective treatment for primary BALT lymphoma.
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Affiliation(s)
- Morgan E. Freret
- Radiation Oncology, Memorial Sloan Kettering Cancer Center (MSKCC), New York, NY, USA
| | - Kathryn R. Tringale
- Radiation Oncology, Memorial Sloan Kettering Cancer Center (MSKCC), New York, NY, USA
| | - Lillian Boe
- Epidemiology and Biostatistics, MSKCC, New York, NY, USA
| | - Brandon S. Imber
- Radiation Oncology, Memorial Sloan Kettering Cancer Center (MSKCC), New York, NY, USA
| | - Erel Joffe
- Lymphoma Service, MSKCC, New York, NY, USA
| | - Joachim Yahalom
- Radiation Oncology, Memorial Sloan Kettering Cancer Center (MSKCC), New York, NY, USA
| | - Carla Hajj
- Radiation Oncology, Memorial Sloan Kettering Cancer Center (MSKCC), New York, NY, USA
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Dee EC, Freret ME, Brennan VS, Yamada Y, Gomez DR, McBride S, Xu AJ, Yerramilli D. Inpatient Simulation Resource Utilization for Inpatient Radiation Oncology Consults. Int J Radiat Oncol Biol Phys 2023; 117:e98. [PMID: 37786227 DOI: 10.1016/j.ijrobp.2023.06.864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Previous data have shown that inpatient radiation oncology consult services result in high-value care, with decreased length of stay, adoption and delivery of shorter fractionation schedules, and lower hospital costs. As such, institutions are increasingly creating inpatient radiation oncology services, although little is known about the allocation of limited resources for patients who may have limited prognosis, complex simulation requirements, and may have difficulty tolerating treatment. Thus, we sought to examine the utilization of simulation appointments for inpatient emergencies. MATERIALS/METHODS At our institution, inpatient consults are placed to a specialized inpatient palliative radiation oncology service, consisting of radiation oncologists specialized in metastatic and palliative RT, dedicated advanced practitioners, and nurses who specifically assess patients for medical appropriateness prior to simulation, including changes in disposition, medical stability, and adequate premedication. Electronic health record data was used to explore utilization trends of a single-institution inpatient radiation oncology consult service in 2020. Data regarding the nature and timing of consults, subsequent simulations and treatments, and patient outcomes including 14-day mortality and 30-day mortality from radiation (RT) start were assessed. Descriptive statistics are presented. RESULTS From 1/1/2020-12/31/2020, 1557 consults were placed. These consults led to 220 (14.1%) inpatient simulations. Of these planned simulations, 210 (95.5%) simulations occurred (of which 10 [4.8%] were rescheduled and eventually completed) and 179 (85.2%) completed treatment. Of 169 with mortality data available, 16 (9.5%) died within 14 days of RT start, and 41 (24.5%) died within 30 days of RT start. Of those with scheduling data (N = 193), 122 were same-day simulations (63.2%), and 507 (93.8%) occurred within 7 days or fewer. CONCLUSION Of 1557 inpatient consultations in one year, with appropriate metastatic and palliative experience, only a minority of consultations required inpatient simulation (14.1%). With appropriate nursing assessment, over 95% were able to complete simulation, with nearly two-thirds completing simulation on the same day, and nearly all patients completing simulation within a week of consultation. Most of these patients completed treatment and survived 30 days from treatment start. Thus, with highly specialized radiation oncologist clinical judgment in conjunction with appropriate nursing assessment prior to simulation scheduling, patients booked for simulation represent high-value utilization of resources.
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Affiliation(s)
- E C Dee
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - M E Freret
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - V S Brennan
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Y Yamada
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - D R Gomez
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - S McBride
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - A J Xu
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - D Yerramilli
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
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Hajj C, Lee J, Boe LA, Fregonese B, Lebow ES, Wijetunga NA, Hubbeling HG, Tringale KR, Freret ME, Imber BS, Yahalom J. Very Low Dose Radiation Therapy for Indolent Lymphomas: Comparing "Big Boom" (4 Gy x 1) vs. "Boom Boom" (2 Gy x 2). Int J Radiat Oncol Biol Phys 2023; 117:S160. [PMID: 37784402 DOI: 10.1016/j.ijrobp.2023.06.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Indolent lymphomas are exquisitely sensitive to radiation therapy (RT). Programs of 2 Gy x 2 were shown to be highly effective in controlling irradiated site(s). During the COVID-19 pandemic, the International Lymphoma Radiation Oncology Group (ILROG) proposed guidelines that offered substitution of the Boom Boom (BB) (2 Gy x 2) regimen with Big Boom (Big B) of 4 Gy x 1. This report compares our center's experience with both regimens. MATERIALS/METHODS We included patients with indolent lymphomas in this retrospective single institution study. After April 2020 both options of very low dose and choice of a standard full dose of 24 Gy were discussed with the patient. Patients were treated with a definitive or palliative intent depending on disease stage and prior therapy exposure. Patients treated with 24 Gy are not included in this report. Toxicity was reported as per CTCAE v4.0. Overall response rate (ORR) was assessed with Lugano PET criteria at the initial post-RT imaging. Differences between the two groups were examined using the Fisher's exact test and Mann-Whitney test. RESULTS We evaluated a total of 471 lesions in 386 patients, including 172 lesions (37%) treated with 4 Gy x 1 and 299 lesions (63%) treated with 2 Gy x 2. Table 1 summarizes the patient and treatment characteristics. Age at the time of RT and sex were not significantly different between the two groups. The BB cohort was more likely to have follicular lymphomas (FL) (66% vs 54%, p = 0.011), though the proportion of higher-grade FL was similar between cohorts. The ORR was similar (Big B = 86%, BB = 87%) at the first post-RT evaluation (median of 2.23 months from RT for both cohorts). There was no significant difference in the rate of complete response, partial response, stable disease, or progressive disease between the cohorts at initial post-RT imaging. For both regimens, no directly related short-term side effects were observed. CONCLUSION Both the 4 Gyx1 and 2 Gyx2 regimens demonstrated excellent ORR at the initial post-RT imaging assessment among patients with indolent lymphomas. While longer term follow-up is required to confirm durability of these findings, our initial experience suggests that 4 Gyx1 regimen recommended by ILROG during the pandemic is an effective treatment approach.
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Affiliation(s)
- C Hajj
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - J Lee
- Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - L A Boe
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - B Fregonese
- Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - E S Lebow
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - N A Wijetunga
- Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - H G Hubbeling
- Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - K R Tringale
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - M E Freret
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - B S Imber
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - J Yahalom
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
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Bander ED, Garton AL, Pasquini L, Yildirim O, Ilica A, Freret ME, Donzelli M, Haque S, Souweidane MM. 213 A Positive Impact on Patterns of Relapse in Diffuse Intrinsic Pontine Glioma after Convection-Enhanced Delivery of Omburtamab. Neurosurgery 2023. [DOI: 10.1227/neu.0000000000002375_213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
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Freret ME, Wijetunga NA, Shamseddine AA, Higginson DS, Schmitt AM, Yamada Y, Lis E, Boire A, Yang JT, Xu AJ. Early Detection of Leptomeningeal Metastases Among Patients Undergoing Spinal Stereotactic Radiosurgery. Adv Radiat Oncol 2023; 8:101154. [PMID: 36845624 PMCID: PMC9943781 DOI: 10.1016/j.adro.2022.101154] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 12/15/2022] [Indexed: 12/27/2022] Open
Abstract
Purpose The management of patients with advanced solid malignancies increasingly uses stereotactic body radiation therapy (SBRT). Advanced cancer patients are at risk for developing leptomeningeal metastasis (LM), a fatal complication of metastatic cancer. Cerebrospinal fluid (CSF) is routinely collected during computed tomography (CT) myelography for spinal SBRT planning, offering an opportunity for early LM detection by CSF cytology in the absence of radiographic LM or LM symptoms (subclinical LM). This study tested the hypothesis that early detection of tumor cells in CSF in patients undergoing spine SBRT portends a similarly poor prognosis compared with clinically overt LM. Methods and Materials We retrospectively analyzed clinical records for 495 patients with metastatic solid tumors who underwent CT myelography for spinal SBRT planning at a single institution from 2014 to 2019. Results Among patients planned for SBRT, 51 (10.3%) developed LM. Eight patients (1.6%) had subclinical LM. Median survival with LM was similar between patients with subclinical versus clinically evident LM (3.6 vs 3.0 months, P = .30). Patients harboring both parenchymal brain metastases and LM (29/51) demonstrated shorter survival than those with LM alone (2.4 vs 7.1 months, P = .02). Conclusions LM remains a fatal complication of metastatic cancer. Subclinical LM detected by CSF cytology in spine SBRT patients has a similarly poor prognosis compared with standardly detected LM and warrants consideration of central nervous system-directed therapies. As aggressive local therapies are increasingly used for metastatic patients, more sensitive CSF evaluation may further identify patients with subclinical LM and should be evaluated prospectively.
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Affiliation(s)
- Morgan E. Freret
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - N. Ari Wijetunga
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Achraf A. Shamseddine
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Daniel S. Higginson
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Adam M. Schmitt
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Yoshiya Yamada
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Eric Lis
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Adrienne Boire
- Department of Neurology, Human Oncology and Pathogenesis Program, Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jonathan T. Yang
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Amy J. Xu
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
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Phillips GS, Freret ME, Friedman DN, Trelles S, Kukoyi O, Freites-Martinez A, Unger RH, Disa JJ, Wexler LH, Tinkle CL, Mechalakos JG, Dusza SW, Beal K, Wolden SL, Lacouture ME. Assessment and Treatment Outcomes of Persistent Radiation-Induced Alopecia in Patients With Cancer. JAMA Dermatol 2021; 156:963-972. [PMID: 32756880 DOI: 10.1001/jamadermatol.2020.2127] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Importance Persistent radiation-induced alopecia (pRIA) and its management have not been systematically described. Objective To characterize pRIA in patients with primary central nervous system (CNS) tumors or head and neck sarcoma. Design, Setting, and Participants A retrospective cohort study of patients from January 1, 2011, to January 30, 2019, was conducted at 2 large tertiary care hospitals and comprehensive cancer centers. Seventy-one children and adults diagnosed with primary CNS tumors or head and neck sarcomas were evaluated for pRIA. Main Outcomes and Measures The clinical and trichoscopic features, scalp radiation dose-response relationship, and response to topical minoxidil were assessed using standardized clinical photographs of the scalp, trichoscopic images, and radiotherapy treatment plans. Results Of the 71 patients included (median [range] age, 27 [4-75] years; 51 female [72%]), 64 (90%) had a CNS tumor and 7 (10%) had head and neck sarcoma. Alopecia severity was grade 1 in 40 of 70 patients (56%), with localized (29 of 54 [54%]), diffuse (13 of 54 [24%]), or mixed (12 of 54 [22%]) patterns. The median (range) estimated scalp radiation dose was 39.6 (15.1-50.0) Gy; higher dose (odds ratio [OR], 1.15; 95% CI, 1.04-1.28) and proton irradiation (OR, 5.7; 95% CI, 1.05-30.8) were associated with greater alopecia severity (P < .001), and the dose at which 50% of patients were estimated to have severe (grade 2) alopecia was 36.1 Gy (95% CI, 33.7-39.6 Gy). Predominant trichoscopic features included white patches (16 of 28 [57%]); in 15 patients, hair-shaft caliber negatively correlated with scalp dose (correlation coefficient, -0.624; P = .01). The association between hair density and scalp radiation dose was not statistically significant (-0.381; P = .16). Twenty-eight of 34 patients (82%) responded to topical minoxidil, 5% (median follow-up, 61 [interquartile range, 21-105] weeks); 4 of 25 (16%) topical minoxidil recipients with clinical images improved in severity grade. Two patients responded to hair transplantation and 1 patient responded to plastic surgical reconstruction. Conclusions and Relevance Persistent radiation-induced alopecia among patients with primary CNS tumors or head and neck sarcomas represents a dose-dependent phenomenon that has distinctive clinical and trichoscopic features. The findings of this study suggest that topical minoxidil and procedural interventions may have benefit in the treatment of pRIA.
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Affiliation(s)
- Gregory S Phillips
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Morgan E Freret
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | | | - Sabrina Trelles
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Oluwaseun Kukoyi
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Azael Freites-Martinez
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.,Dermatology Service, Hospital Ruber Juan Bravo and Universidad Europea, Madrid, Spain
| | - Robin H Unger
- Department of Dermatology, Mount Sinai Medical Center, New York, New York
| | - Joseph J Disa
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Leonard H Wexler
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Christopher L Tinkle
- Department of Radiation Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - James G Mechalakos
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Stephen W Dusza
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kathryn Beal
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Suzanne L Wolden
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Mario E Lacouture
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
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Bander ED, Freret ME, Wembacher-Schroeder E, Wolden SL, Souweidane MM. DIPG-49. BRAINSTEM AND PONTINE VOLUMETRIC ANALYSIS AS A SURROGATE MEASURE OF LOCAL DISEASE CONTROL IN CHILDREN WITH DIFFUSE INTRINSIC PONTINE GLIOMA (DIPG). Neuro Oncol 2020. [PMCID: PMC7715859 DOI: 10.1093/neuonc/noaa222.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Response-assessment in pediatric neuro-oncology (RAPNO) criteria designed to describe treatment outcomes are poorly implemented in diffuse intrinsic pontine glioma (DIPG), due to inter-observer variability in measurement of tumor volume, lack of tumor enhancement, and undefined relationships between radiographic parameters and survival. Given these issues, this study assessed whether anatomically defined brainstem and pontine volumes can serve as surrogate measures of local disease burden and response to therapy in DIPG. METHODS Thirty-two consecutive patients with newly diagnosed DIPG were treated with standard definitive radiation therapy (RT) between 2010 and 2016 at a single institution. MRI brain scans throughout treatment course were analyzed using iPlan® Flow software (Brainlab AG, Munich, Germany). Semi-automated 3D measurements of the brainstem and pons were calculated using a built-in knowledge-based segmentation approach and manually adjusted. RESULTS Mean age at diagnosis was 6.5+/-0.5 years (range 2–12 years). Median follow up time was 317 days. Average brainstem volume at diagnosis (Vdiag) was 52.7+/-2.1mL with subsequent decrease at first post-RT MRI to 41.4+/-2.0mL (p < 0.0001). By time of last follow up, brainstem volume increased to 51.9+/-3.3, no longer significantly different as compared to Vdiag (p=0.61). The same relationships were found for pontine volume. CONCLUSIONS Volumetric changes in the brainstem and pons occur in response to treatment and correlate with local disease burden and response to therapy. This surrogate may be a useful standardized measure in ongoing and future trials involving localized delivery of therapeutics in DIPG that require evaluation of local-regional disease control in addition to survival.
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Affiliation(s)
- Evan D Bander
- Weill Cornell Medical College/NY Presbyterian Hospital, New York, NY, USA
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | | | | | - Mark M Souweidane
- Weill Cornell Medical College/NY Presbyterian Hospital, New York, NY, USA
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Dee EC, Freret ME, Wo JY. Chemoradiation for Patients with Resected Biliary Tract Cancers in the Adjuvant Setting: Reply to a Letter to the Editor. Ann Surg Oncol 2020; 27:937-939. [DOI: 10.1245/s10434-020-09130-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 11/18/2022]
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Dee EC, Freret ME, Wo JY. ASO Author Reflections: Adjuvant Chemoradiation for Patients with Resected Biliary Tract Cancers. Ann Surg Oncol 2020; 27:5173-5174. [PMID: 32748150 DOI: 10.1245/s10434-020-08970-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 01/04/2023]
Affiliation(s)
| | - Morgan E Freret
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jennifer Y Wo
- Harvard Medical School, Boston, MA, USA. .,Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, 100 Blossom St., Boston, MA, 02114, USA.
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Dee EC, Freret ME, Horick N, Raldow AC, Goyal L, Zhu AX, Parikh AR, Ryan DP, Clark JW, Allen JN, Ferrone CR, Fernandez-Del Castillo C, Tanabe KK, Drapek LC, Hong TS, Qadan M, Wo JY. Patterns of Failure and the Need for Biliary Intervention in Resected Biliary Tract Cancers After Chemoradiation. Ann Surg Oncol 2020; 27:5161-5172. [PMID: 32740733 DOI: 10.1245/s10434-020-08967-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 06/10/2020] [Indexed: 01/04/2023]
Abstract
BACKGROUND This study assessed patterns of failure and rates of subsequent biliary intervention among patients with resected biliary tract cancers (BTCs) including gallbladder carcinoma (GBC) and extra- and intrahepatic cholangiocarcinoma (eCCA and iCCA) treated with adjuvant chemoradiation therapy (CRT). METHODS In this single-institution retrospective analysis of 80 patients who had GBC (n = 29), eCCA (n = 43), or iCCA (n = 8) treated with curative-intent resection and adjuvant CRT from 2007 to 2017, the median radiation dose was 50.4 Gy (range 36-65 Gy) with concurrent 5-fluorouracil (5-FU) chemotherapy. All but two of the patients received adjuvant chemotherapy. The 2-year locoregional failure (LRF), 2-year recurrence-free survival (RFS), and 2-year overall survival (OS), and univariate predictors of LRF, RFS, and OS were calculated for the entire cohort and for a subgroup excluding patients with iCCA (n = 72). The predictors of biliary interventions also were assessed. RESULTS Of the 80 patients (median follow-up period, 30.5 months; median OS, 33.9 months), 54.4% had American Joint Committee on Cancer (AJCC) stage 1 or 2 disease, 57.1% were lymph node-positive, and 66.3% underwent margin-negative resection. For the entire cohort, 2-year LRF was 23.8%, 2-year RFS was 43.7%, and 2-year OS was 62.1%. When patients with iCCA were excluded, the 2-year LRF was 22.6%, the 2-year RFS was 43.9%, and the 2-year OS was 59.2%. In the overall and subgroup univariate analyses, lymph node positivity was associated with greater LRF, whereas resection margin was not. Biliary intervention was required for 12 (63.2%) of the 19 patients with LRF versus 11 (18%) of the 61 patients without LRF (P < 0.001). Of the 12 patients with LRF who required biliary intervention, 4 died of biliary complications. CONCLUSIONS The LRF rates remained significant despite adjuvant CRT. Lymph node positivity may be associated with increased risk of LRF. Positive margins were not associated with greater LRF, suggesting that CRT may mitigate LRF risk for this group. An association between LRF and higher rates of subsequent biliary interventions was observed, which may yield significant morbidity. Novel strategies to decrease the rates of LRF should be considered.
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Affiliation(s)
| | - Morgan E Freret
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nora Horick
- Biostatistics Center, Massachusetts General Hospital, Boston, MA, USA
| | - Ann C Raldow
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Lipika Goyal
- Department of Medical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrew X Zhu
- Department of Medical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Aparna R Parikh
- Department of Medical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - David P Ryan
- Department of Medical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jeffrey W Clark
- Department of Medical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jill N Allen
- Department of Medical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Cristina R Ferrone
- Department of General and Gastrointestinal Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Carlos Fernandez-Del Castillo
- Department of General and Gastrointestinal Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Kenneth K Tanabe
- Department of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Lorraine C Drapek
- Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Theodore S Hong
- Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Motaz Qadan
- Department of General and Gastrointestinal Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jennifer Y Wo
- Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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Freret ME, Anastasaki C, Gutmann DH. Independent NF1 mutations underlie café-au-lait macule development in a woman with segmental NF1. Neurol Genet 2018; 4:e261. [PMID: 30065955 PMCID: PMC6066364 DOI: 10.1212/nxg.0000000000000261] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 04/24/2018] [Indexed: 01/27/2023]
Affiliation(s)
- Morgan E Freret
- Department of Neurology (M.E.F., C.A., D.H.G.), Washington University School of Medicine, Saint Louis, MO; and Harvard Medical School (M.E.F.), Boston, MA
| | - Corina Anastasaki
- Department of Neurology (M.E.F., C.A., D.H.G.), Washington University School of Medicine, Saint Louis, MO; and Harvard Medical School (M.E.F.), Boston, MA
| | - David H Gutmann
- Department of Neurology (M.E.F., C.A., D.H.G.), Washington University School of Medicine, Saint Louis, MO; and Harvard Medical School (M.E.F.), Boston, MA
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Freret ME, Gutmann DH. Insights into optic pathway glioma vision loss from mouse models of neurofibromatosis type 1. J Neurosci Res 2018; 97:45-56. [PMID: 29704429 DOI: 10.1002/jnr.24250] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 04/09/2018] [Indexed: 12/12/2022]
Abstract
Neurofibromatosis type 1 (NF1) is a common cancer predisposition syndrome caused by mutations in the NF1 gene. The NF1-encoded protein (neurofibromin) is an inhibitor of the oncoprotein RAS and controls cell growth and survival. Individuals with NF1 are prone to developing low-grade tumors of the optic nerves, chiasm, tracts, and radiations, termed optic pathway gliomas (OPGs), which can cause vision loss. A paucity of surgical tumor specimens and of patient-derived xenografts for investigative studies has limited our understanding of human NF1-associated OPG (NF1-OPG). However, mice genetically engineered to harbor Nf1 gene mutations develop optic gliomas that share many features of their human counterparts. These genetically engineered mouse (GEM) strains have provided important insights into the cellular and molecular determinants that underlie mouse Nf1 optic glioma development, maintenance, and associated vision loss, with relevance by extension to human NF1-OPG disease. Herein, we review our current understanding of NF1-OPG pathobiology and describe the mechanisms responsible for tumor initiation, growth, and associated vision loss in Nf1 GEM models. We also discuss how Nf1 GEM and other preclinical models can be deployed to identify and evaluate molecularly targeted therapies for OPG, particularly as they pertain to future strategies aimed at preventing or improving tumor-associated vision loss in children with NF1.
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Affiliation(s)
- Morgan E Freret
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri
| | - David H Gutmann
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri
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Okaty BW, Freret ME, Rood BD, Brust RD, Hennessy ML, deBairos D, Kim JC, Cook MN, Dymecki SM. Multi-Scale Molecular Deconstruction of the Serotonin Neuron System. Neuron 2015; 88:774-91. [PMID: 26549332 DOI: 10.1016/j.neuron.2015.10.007] [Citation(s) in RCA: 146] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 08/06/2015] [Accepted: 09/28/2015] [Indexed: 02/01/2023]
Abstract
Serotonergic (5HT) neurons modulate diverse behaviors and physiology and are implicated in distinct clinical disorders. Corresponding diversity in 5HT neuronal phenotypes is becoming apparent and is likely rooted in molecular differences, yet a comprehensive approach characterizing molecular variation across the 5HT system is lacking, as is concomitant linkage to cellular phenotypes. Here we combine intersectional fate mapping, neuron sorting, and genome-wide RNA-seq to deconstruct the mouse 5HT system at multiple levels of granularity-from anatomy, to genetic sublineages, to single neurons. Our unbiased analyses reveal principles underlying system organization, 5HT neuron subtypes, constellations of differentially expressed genes distinguishing subtypes, and predictions of subtype-specific functions. Using electrophysiology, subtype-specific neuron silencing, and conditional gene knockout, we show that these molecularly defined 5HT neuron subtypes are functionally distinct. Collectively, this resource classifies molecular diversity across the 5HT system and discovers sertonergic subtypes, markers, organizing principles, and subtype-specific functions with potential disease relevance.
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Affiliation(s)
- Benjamin W Okaty
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - Morgan E Freret
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - Benjamin D Rood
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - Rachael D Brust
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - Morgan L Hennessy
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - Danielle deBairos
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - Jun Chul Kim
- Psychology Department, University of Toronto, 100 St. George Street, Toronto ON, M5S 3G3, Canada
| | - Melloni N Cook
- Department of Psychology, University of Memphis, 400 Innovation Drive, Memphis, TN 38152, USA
| | - Susan M Dymecki
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA.
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Abstract
Optic pathway glioma (OPG), seen in 15% to 20% of individuals with neurofibromatosis type 1 (NF1), account for significant morbidity in young children with NF1. Overwhelmingly a tumor of children younger than 7 years, OPG may present in individuals with NF1 at any age. Although many OPG may remain indolent and never cause signs or symptoms, others lead to vision loss, proptosis, or precocious puberty. Because the natural history and treatment of NF1-associated OPG is different from that of sporadic OPG in individuals without NF1, a task force composed of basic scientists and clinical researchers was assembled in 1997 to propose a set of guidelines for the diagnosis and management of NF1-associated OPG. This new review highlights advances in our understanding of the pathophysiology and clinical behavior of these tumors made over the last 10 years. Controversies in both the diagnosis and management of these tumors are examined. Finally, specific evidence-based recommendations are proposed for clinicians caring for children with NF1.
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Affiliation(s)
| | - David H. Gutmann
- To whom correspondence should be addressed: Telephone: 314-362-7379, Facsimile: 314-362-2388,
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