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Bendamustine and rituximab as frontline therapy in extranodal marginal zone lymphoma:a single-institution experience

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Oncology Research 2024年第6期32卷 1031-1036页

作者： CONSTANTINE N.LOGOTHETIS NATHAN P.HORVAT TONY KURIAN CELESTE BELLO JULIO CHAVEZ LEIDY ISENALUMHE BIJAL SHAH LUBOMIR SOKOL HAYDER SAEED javier pinilla SAMEH GABALLA Department of Internal Medicine University of South FloridaTampaFL33602USA College of Medicine University of South Florida MorsaniTampaFL33602USA H.Lee Moffitt Cancer Center and Research Institute TampaFL33612USA

Extranodal marginal zone lymphoma(EMZL)encompasses 70%of cases of marginal zone *** bendamustine and rituximab(BR)were derived from trials involving other indolent non-Hodgkin’s *** one trial has evaluated frontline BR prospectively in *** retrospective study reports outcomes among EMZL patients receiving frontline ***-five patients were included with a median age of 69 years(40–81).Five(20.0%)patients had stage Ⅰ/Ⅱ disease,and 20(80.0%)had stage Ⅲ/Ⅳ *** median number of cycles was 6.0(3.0–6.0).Maintenance rituximab was administered to 10(41.7%)*** response rate(ORR)was 100.0%(60.0%complete response,40.0%partial response).Medians of overall survival and progression-free survival were not *** estimated 2-year progression-free survival was 85.2%and overall survival was 100.0%.Four(16.6%)patients had infections related to treatment;3(12.0%)transformed to diffuse large B-cell lymphoma;5(20.8%)had a relapse or progression of EMZL;and 3(12.0%)died unrelated to *** is an efficacious and well-tolerated front-line regimen for EMZL with response data consistent with existing literature.

关键词： Extranodal marginal zone lymphoma Bendamustine Rituximab Front-line therapy

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STING regulates BCR signaling in normal and malignant B cells

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Cellular & Molecular Immunology 2021年第4期18卷 1016-1031页

作者： Chih-Hang Anthony Tang Avery C.Lee Shiun Chang Qin Xu Andong Shao Yun Lo Walker T.Spalek javier A.pinilla-lbarz Juan R.Del Valle Chih-Chi Andrew Hu The Wistar Institute 3601 Spruce StreetPhiladelphiaPA 19104USA Department of Malignant Hematology H.Lee Moffitt Cancer Center&Research InstituteTampaFL 33612USA Department of Chemistry&Biochemistry University of Notre DameNotre DameIN 46556USA

STING is an endoplasmic reticulum(ER)-resident protein critical for sensing cytoplasmic DNA and promoting the production of type Ⅰ interferons;however,the role of STING in B cell receptor(BCR)signaling remains *** generated STING V154M knock-in mice and showed that B cells carrying constitutively activated STING specifically degraded membrane-bound IgM,Ig a and Igβ via SEL1L/HRD1-mediated ER-associated degradation(ERAD).B cells with activated STING were thus less capable of responding to BCR activation by phosphorylating Igα and Syk than those without activated *** immunized with T-independent antigens,STING V154M mice produced significantly fewer antigen-specific plasma cells and antibodies than immunized wild-type(WT)*** further generated B cell-specific STING^(KO) mice and showed that STING^(KO) B cells indeed responded to activation by transducing stronger BCR signals than their STING-proficient *** B cell-specific STING^(KO) mice were T-independently immunized,they produced significantly more antigen-specific plasma cells and antibodies than immunized STIN^(WT)*** both human and m ouse IGHV-unmutated malignant chronic lymphocytic leukemia(CLL)cells downregulated the expression of STING,we explored whether STING downregulation could contribute to the well-established robust BCR signaling phenotype in malignant CLL *** generated a STING-deficient CLL mouse model and showed that STING-deficient CLL cells were indeed more responsive to BCR activation than their STING-proficient *** results revealed a novel B cell-intrinsic role of STING in negatively regulating BCR signaling in both normal and malignant B cells.

关键词： STING BCR ER-associated degradation CLL Plasma cells

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