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Cho BC, Penkov K, Bondarenko I, Kurochkin A, Pikiel J, Ahn HK, Korożan ME, Osipov M, Odintsova S, Braiteh F, Ribas A, Grilley-Olson JE, Lugowska I, Bonato V, Damore MA, Yang W, Jacobs IA, Bowers M, Li M, Johnson ML. A phase Ib/II dose expansion study of subcutaneous sasanlimab in patients with locally advanced or metastatic non-small-cell lung cancer and urothelial carcinoma. ESMO Open 2023; 8:101589. [PMID: 37385154 PMCID: PMC10485400 DOI: 10.1016/j.esmoop.2023.101589] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 05/15/2023] [Accepted: 05/23/2023] [Indexed: 07/01/2023] Open
Abstract
BACKGROUND Sasanlimab is an antibody to the programmed cell death protein 1 receptor. We report updated data of subcutaneous sasanlimab in non-small-cell lung cancer (NSCLC) and urothelial carcinoma dose expansion cohorts from a first-in-human phase Ib/II study. PATIENTS AND METHODS Patients were ≥18 years of age with NSCLC or urothelial carcinoma, and no prior immunotherapies, who progressed on or were intolerant to systemic therapy, or for whom systemic therapy was refused or unavailable. Patients received subcutaneous sasanlimab at 300 mg every 4 weeks (q4w). Primary objectives were to evaluate safety, tolerability, and clinical efficacy by objective response rate (ORR). RESULTS Sixty-eight and 38 patients with NSCLC and urothelial carcinoma, respectively, received subcutaneous sasanlimab. Overall, sasanlimab was well tolerated; 13.2% of patients experienced grade ≥3 treatment-related adverse events. Confirmed ORR was 16.4% and 18.4% in the NSCLC and urothelial carcinoma cohorts, respectively. ORR was generally higher in patients with high programmed death-ligand 1 (PD-L1) expression (≥25%) and high tumor mutational burden (TMB; >75%). In the NSCLC and urothelial carcinoma cohorts, median progression-free survival (PFS) was 3.7 and 2.9 months, respectively; corresponding median overall survival (OS) was 14.7 and 10.9 months. Overall, longer median PFS and OS correlated with high PD-L1 expression and high TMB. Longer median PFS and OS were also associated with T-cell inflamed gene signature in the urothelial carcinoma cohort. CONCLUSIONS Subcutaneous sasanlimab at 300 mg q4w was well tolerated with promising clinical efficacy observed. Phase II and III clinical trials of sasanlimab are ongoing to validate clinical benefit. Subcutaneous sasanlimab may be a potential treatment option for patients with NSCLC or urothelial carcinoma.
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Affiliation(s)
- B C Cho
- Division of Medical Oncology, Yonsei Cancer Center, Seoul, Republic of Korea.
| | - K Penkov
- Private Healthcare Institution Clinical Hospital "RZhD-Medicine", St Petersburg, Russian Federation
| | - I Bondarenko
- Department of Oncology and Medical Oncology, Dnipropetrovsk City Multiple-Discipline Clinical Hospital, Dnipro, Ukraine
| | - A Kurochkin
- Municipal Non-profit Enterprise of Sumy Regional Council, Sumy Regional Clinical Oncology Dispensary, Sumy, Ukraine
| | - J Pikiel
- Poradnia Onkologiczna, Szpitale Pomorskie Sp. z o.o, Gdynia, Poland
| | - H K Ahn
- Division of Medical Oncology, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - M E Korożan
- Oddzial Onkologii Klinicznej, Szpital Grudziądz, Grudziądz, Poland
| | - M Osipov
- Sbhi "Lrcod", Vsevolozhsky District, Leningrad Region, Russian Federation
| | - S Odintsova
- Current Medical Technology, St Petersburg, Russian Federation
| | - F Braiteh
- Comprehensive Cancer Centers of Nevada, Las Vegas, USA
| | - A Ribas
- Jonsson Comprehensive Cancer Center, The University of California Los Angeles, Los Angeles, USA
| | | | - I Lugowska
- Early Phase Clinical Trials Unit, Maria Skłodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | | | | | - W Yang
- Pfizer Inc, San Diego, USA
| | | | | | - M Li
- Pfizer Inc, San Francisco, USA
| | - M L Johnson
- Sarah Cannon Research Institute, Tennessee Oncology PLLC, Nashville, USA.
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Shalhoub V, Shatzen EM, Ward SC, Young JI, Boedigheimer M, Twehues L, McNinch J, Scully S, Twomey B, Baker D, Kiaei P, Damore MA, Pan Z, Haas K, Martin D. Chondro/osteoblastic and cardiovascular gene modulation in human artery smooth muscle cells that calcify in the presence of phosphate and calcitriol or paricalcitol. J Cell Biochem 2011; 111:911-21. [PMID: 20665672 PMCID: PMC3470918 DOI: 10.1002/jcb.22779] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Vitamin D sterol administration, a traditional treatment for secondary hyperparathyroidism, may increase serum calcium and phosphorus, and has been associated with increased vascular calcification (VC). In vitro studies suggest that in the presence of uremic concentrations of phosphorus, vitamin D sterols regulate gene expression associated with trans-differentiation of smooth muscle cells (SMCs) to a chondro/osteoblastic cell type. This study examined effects of vitamin D sterols on gene expression profiles associated with phosphate-enhanced human coronary artery SMC (CASMC) calcification. Cultured CASMCs were exposed to phosphate-containing differentiation medium (DM) with and without calcitriol, paricalcitol, or the calcimimetic R-568 (10(-11)-10(-7) M) for 7 days. Calcification of CASMCs, determined using colorimetry following acid extraction, was dose dependently increased (1.6- to 1.9-fold) by vitamin D sterols + DM. In contrast, R-568 did not increase calcification. Microarray analysis demonstrated that, compared with DM, calcitriol (10(-8) M) + DM or paricalcitol (10(-8) M) + DM similarly and significantly (P < 0.05) regulated genes of various pathways including: metabolism, CYP24A1; mineralization, ENPP1; apoptosis, GIP3; osteo/chondrogenesis, OPG, TGFB2, Dkk1, BMP4, BMP6; cardiovascular, HGF, DSP1, TNC; cell cycle, MAPK13; and ion channels, SLC22A3 KCNK3. R-568 had no effect on CASMC gene expression. Thus, SMC calcification observed in response to vitamin D sterol + DM may be partially mediated through targeting mineralization, apoptotic, osteo/chondrocytic, and cardiovascular pathway genes, although some gene changes may protect against calcification. Further studies to determine precise roles of these genes in development of, or protection against VC and cardiovascular disease are required.
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Affiliation(s)
- V Shalhoub
- Department of Metabolic Disorders, Amgen, Inc., Thousand Oaks, California, USA.
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Teitell M, Damore MA, Sulur GG, Turner DE, Stern MH, Said JW, Denny CT, Wall R. TCL1 oncogene expression in AIDS-related lymphomas and lymphoid tissues. Proc Natl Acad Sci U S A 1999; 96:9809-14. [PMID: 10449776 PMCID: PMC22292 DOI: 10.1073/pnas.96.17.9809] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.6] [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] [Indexed: 11/18/2022] Open
Abstract
AIDS-related non-Hodgkin's lymphoma (AIDS NHL) comprises a diverse and heterogeneous group of high-grade B cell tumors. Certain classes of AIDS NHL are associated with alterations in oncogenes or tumor-suppressor genes or infections by oncogenic herpesviruses. However, the clinically significant class of AIDS NHL designated immunoblastic lymphoma plasmacytoid (AIDS IBLP) lacks any consistent genetic alterations. We identified the TCL1 oncogene from a set of AIDS IBLP-associated cDNA fragments generated by subtractive hybridization with non-AIDS IBLP. Aberrant TCL1 expression has been implicated in T cell leukemia/lymphoma development, and its expression also has been seen in many established B cell tumor lines. However, TCL1 expression has not been reported in AIDS NHL. We find that TCL1 is expressed in the majority of AIDS IBLP tumors examined. TCL1 protein expression is restricted to tumor cells in AIDS IBLP tissue samples analyzed with immunohistochemical staining. Hyperplastic lymph node and tonsil also exhibit strong TCL1 protein expression in mantle zone B cells and in rare interfollicular zone cells, whereas follicle-center B cells (centroblasts and centrocytes) show weaker expression. These results establish TCL1 as the most prevalent of all of the surveyed oncogenes associated with AIDS IBLP. They also indicate that abundant TCL1 expression in quiescent mantle zone B cells is down-regulated in activated germinal center follicular B cells in parallel to the known expression pattern of BCL-2. High-level expression in nonproliferating B cells suggests that TCL1 may function in protecting naïve preactivated B cells from apoptosis.
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Affiliation(s)
- M Teitell
- Molecular Biology Institute, University of California, Los Angeles School of Medicine, Los Angeles, CA 90095, USA.
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Abstract
The IRG-47 gene is the prototype for a new family of genes encoding guanine nucleotide binding proteins (G-proteins) which are selectively induced in different cell lineages in response to activation signals. The IRG-47 gene is rapidly and transiently induced by interferon-gamma (IFN-gamma) in cells of the B lymphocyte lineage and in stromal cells and fibroblasts. Here we report features controlling the uninduced and IFN-gamma-induced expression of the IRG-47 gene. The minimal IFN-gamma-inducible IRG-47 gene promoter is 96 bp long and contains a TATA box and an ISRE motif with an internal IRF-1/IRF-2 motif. Mutation of the ISRE motif abolishes IFN-gamma induction by the minimal promoter. Constitutively expressed IRF-2 and IFN-gamma-induced IRF-1 factors specifically bind to the wild-type, but not the mutated ISRE motif. An upstream region containing two tandemly repeated YY1 motifs represses the expression of the IRG-47 promoter in uninduced cells and determines the magnitude of IRG-47 promoter activity in IFN-gamma-induced cells. The IRG-47 minimal promoter has the same functional features and organization as the IFN-gamma-inducible promoters of the unrelated murine GBP G-protein multigene family.
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Affiliation(s)
- M Gilly
- Department of Microbiology and Immunology, School of Medicine, University of California, Los Angeles 90095, USA
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Damore MA, Omori SA, Wall R. IFN-gamma induces the kappa intron enhancer via an IFN-stimulated response element. J Immunol 1996; 156:2451-7. [PMID: 8786304] [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] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
IFN-gamma is a potent inducer of Ig kappa light chain gene transcription in 70Z/3 pre-B cells, but the mechanism of this induction has not been elucidated. The kappa intron enhancer contains a sequence closely resembling the IFN-stimulated response element (ISRE). We have determined that the kappa intron enhancer is IFN-gamma inducible in 70Z/3 cells and that the ISRE is required for this induction. The kappa intron ISRE specifically bound IFN response factor-1 (IRF-1) and the constitutively expressed IRF-2. This ISRE is a multifunctional motif that also binds the LPS-inducible factor kappaBF-A and is located within the kappaBS region, which confers B cell specific activity to this enhancer. However, since the expression of IRF-1 is not restricted to B cells, it must not be sufficient for the induction of kappa transcription. Furthermore, in the pre-B cell line 38B9, which is representative of an earlier stage in pre-B cell development than the 70Z/3 cell line, the kappa intron enhancer was not induced by IFN-gamma despite the activation of IRF-1. These findings suggest that IFN-gamma activation of kappa gene transcription during B cell maturation may be developmentally controlled by elements that restrict the activity of the ISRE within the context of the intron enhancer.
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Affiliation(s)
- M A Damore
- Molecular Biology Insitute, University of California, Los Angeles 90095, USA
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Damore MA, Omori SA, Wall R. IFN-gamma induces the kappa intron enhancer via an IFN-stimulated response element. The Journal of Immunology 1996. [DOI: 10.4049/jimmunol.156.7.2451] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
IFN-gamma is a potent inducer of Ig kappa light chain gene transcription in 70Z/3 pre-B cells, but the mechanism of this induction has not been elucidated. The kappa intron enhancer contains a sequence closely resembling the IFN-stimulated response element (ISRE). We have determined that the kappa intron enhancer is IFN-gamma inducible in 70Z/3 cells and that the ISRE is required for this induction. The kappa intron ISRE specifically bound IFN response factor-1 (IRF-1) and the constitutively expressed IRF-2. This ISRE is a multifunctional motif that also binds the LPS-inducible factor kappaBF-A and is located within the kappaBS region, which confers B cell specific activity to this enhancer. However, since the expression of IRF-1 is not restricted to B cells, it must not be sufficient for the induction of kappa transcription. Furthermore, in the pre-B cell line 38B9, which is representative of an earlier stage in pre-B cell development than the 70Z/3 cell line, the kappa intron enhancer was not induced by IFN-gamma despite the activation of IRF-1. These findings suggest that IFN-gamma activation of kappa gene transcription during B cell maturation may be developmentally controlled by elements that restrict the activity of the ISRE within the context of the intron enhancer.
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Affiliation(s)
- M A Damore
- Molecular Biology Insitute, University of California, Los Angeles 90095, USA
| | - S A Omori
- Molecular Biology Insitute, University of California, Los Angeles 90095, USA
| | - R Wall
- Molecular Biology Insitute, University of California, Los Angeles 90095, USA
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Thompson AA, Wood WJ, Gilly MJ, Damore MA, Omori SA, Wall R. The promoter and 5' flanking sequences controlling human B29 gene expression. Blood 1996; 87:666-73. [PMID: 8555489] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The product of the B-cell-specific B29 gene (B29, Ig beta, CD79b) is essential for Ig-mediated B-cell activation via the B-cell antigen receptor complex (BCR) on human and murine B lymphocytes. To better understand the regulation of this pivotal gene, we have analyzed the human genomic DNA sequence upstream of the B29 ATG start codon for transcriptional control activity. The human B29 gene lacks either a TATA or a CAAT box and transcription is initiated at multiple sites. The minimal promoter of the human B29 gene is contained within a 193-bp region 5' of these multiple start sites. This minimal promoter exhibits B-cell-specific activity and contains SP1, ETS, OCT, and IKAROS/LYF-1 transcription factor motifs. All these motifs are strikingly conserved in sequence and placement relative to the previously characterized murine B29 promoter. Additional upstream gene segments dramatically affected B29 minimal promoter activity. A newly identified motif called the B29 conserved sequence (BCS), found upstream of both human and murine B29 promoters, appears to stimulate B29 transcription through a novel mechanism. A single BCS had little effect either on the minimal B29 promoter or on a heterologous promoter. Instead, the BCS stimulated transcription by counteracting 5' negative regulatory DNA sequences that block the activity of the B29 minimal promoter in its absence. These findings indicate that B29 gene expression is controlled by the complex interplay of positive and negative regulatory elements.
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Affiliation(s)
- A A Thompson
- Department of Pediatrics, Gwynne Hazen Cherry Memorial Laboratories, Los Angeles, CA, USA
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Law RE, Stimmel JB, Damore MA, Carter C, Clarke S, Wall R. Lipopolysaccharide-induced NF-kappa B activation in mouse 70Z/3 pre-B lymphocytes is inhibited by mevinolin and 5'-methylthioadenosine: roles of protein isoprenylation and carboxyl methylation reactions. Mol Cell Biol 1992; 12:103-11. [PMID: 1729592 PMCID: PMC364073 DOI: 10.1128/mcb.12.1.103-111.1992] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [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] [Indexed: 12/28/2022] Open
Abstract
We show that both the lipopolysaccharide (LPS)-induced activation of NF-kappa DNA binding and kappa gene expression are blocked by treating murine pre-B lymphocyte 70Z/3 cells with 5'-methylthioadenosine (MTA), an inhibitor of several S-adenosylmethionine-dependent methylation reactions. We further show that the LPS-induced incorporation of radioactivity from [methyl-3H]methionine into methyl ester-like linkages on a group of membrane polypeptides is also inhibited by MTA treatment, suggesting the involvement of protein methylation reactions in the LPS signal transduction pathway. We also find that NF-kappa B and kappa gene activation in LPS-treated 70Z/3 cells is blocked by mevinolin, an inhibitor that prevents protein isoprenylation. Interestingly, mevinolin-treated cells also exhibited a marked reduction in the methylation of membrane proteins. Neither MTA nor mevinolin significantly inhibited NF-kappa B activation by phorbol myristate acetate, suggesting that these agents act early in signal transduction. These results provide the first evidence that carboxyl methylated and/or isoprenylated proteins play an essential role in the LPS-signaling pathway.
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Affiliation(s)
- R E Law
- Department of Microbiology and Immunology, University of California, Los Angeles 90024
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