Abstract
Over the last decade, improved understanding of the mechanisms and structures of proteins integral to apoptosis have enabled therapeutic targeting of BCL2 to become more specific, less toxic and ultimately more clinically effective. The first BCL2-selective inhibitor, venetoclax, is now approved for use in patients with relapsed and refractory chronic lymphocytic leukemia (CLL) in multiple countries. Early phase clinical trials demonstrated an 80% overall response rates in patients with relapsed/refractory CLL, independent of traditional risk factors, without undue toxicity. Venetoclax is also highly active in other lymphoid malignancies that express high levels of its target, BCL2, such as mantle cell lymphoma. However, there is a cumulative incidence of disease progression while on therapy. Ongoing follow-up of the early phase trials is only now enabling elucidation of the incidence and risk factors for disease progression and treatment failure. Preventing development of resistance to BCL2 inhibition requires further research aimed at delineating the genetic and epigenetic drivers of disease progression. This will facilitate targeting of resistance mechanisms through the use of rational drug combinations, help to prospectively identify patients most likely to benefit and abet early identification of emerging resistance. These therapies are improving outcomes for patients with previously poor prognosis disease.
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- AML:
-
Acute myeloid leukemia
- BCL2:
-
B cell lymphoma 2
- BCR:
-
B cell receptor
- BH:
-
BCL2 homology
- BTK:
-
Burtons tyrosine kinase
- CI:
-
Confidence interval
- CLL:
-
Chronic lymphocytic leukemia
- CR:
-
Complete remission
- CRi:
-
Complete remission, incomplete count recovery
- Del11q:
-
Deletion 11q
- Del17p:
-
Deletion 17p
- DLBCL:
-
Diffuse large B cell lymphoma
- DLT:
-
Dose limiting toxicity
- DOR:
-
Duration of response
- EC50 :
-
Half maximal effective concentration
- EFS:
-
Event free survival
- FFP:
-
Freedom from progression
- FL:
-
Follicular lymphoma
- G:
-
Grade
- HL:
-
Hodgkin lymphoma
- IDH:
-
Isocitrate dehydrogenase
- IGVH:
-
Immunoglobulin variable region heavy chain
- IHC:
-
Immunohistochemistry
- MCL:
-
Mantle cell lymphoma
- MLL:
-
Mixed lineage leukemia
- MM:
-
Multiple myeloma
- MRD:
-
Minimal residual disease
- MTD:
-
Maximum tolerated dose
- MZL:
-
Marginal zone lymphoma
- NA:
-
Not applicable
- NHL:
-
Non-Hodgkin lymphoma
- nM:
-
Nano-molar
- ORR:
-
Overall response rate
- OS:
-
Overall survival
- PD:
-
Progressive disease
- PFS:
-
Progression free survival
- PI3κ:
-
Phosphoinositide 3 kinase
- PR:
-
Partial response
- RP2D:
-
Recommended phase 2 dose
- RT:
-
Richter’s transformation
- SLL:
-
Small lymphocytic lymphoma
- TLS:
-
Tumor lysis syndrome
- TTP:
-
Time to progression
- WM:
-
Waldenstrom’s macroglobulinemia
References
Coiffier B, Lepage E, Briere J, et al. CHOP chemotherapy plus rituximab compared with CHOP alone in elderly patients with diffuse large-B-cell lymphoma. N Engl J Med. 2002;346:235–42.
Byrd JC, Rai K, Peterson BL, et al. Addition of rituximab to fludarabine may prolong progression-free survival and overall survival in patients with previously untreated chronic lymphocytic leukemia: an updated retrospective comparative analysis of CALGB 9712 and CALGB 9011. Blood. 2005;105:49–53.
Döhner H, Stilgenbauer S, Benner A, et al. Genomic aberrations and survival in chronic lymphocytic leukemia. N Engl J Med. 2000;343:1910–6.
Mayr C, Speicher MR, Kofler DM, et al. Chromosomal translocations are associated with poor prognosis in chronic lymphocytic leukemia. Blood. 2006;107:742–51.
Tam CS, O'Brien S, Lerner S, et al. The natural history of fludarabine-refractory chronic lymphocytic leukemia patients who fail alemtuzumab or have bulky lymphadenopathy. Leuk Lymphoma. 2007;48:1931–9.
Zenz T, Gribben JG, Hallek M, et al. Risk categories and refractory CLL in the era of chemoimmunotherapy. Blood. 2012;119:4101–7.
Robak T, Dmoszynska A, Solal-Celigny P, et al. Rituximab plus fludarabine and cyclophosphamide prolongs progression-free survival compared with fludarabine and cyclophosphamide alone in previously treated chronic lymphocytic leukemia. J Clin Oncol. 2010;28:1756–65.
Keating MJ, O'Brien S, Kantarjian H, et al. Long-term follow-up of patients with chronic lymphocytic leukemia treated with fludarabine as a single agent. Blood. 1993;81:2878–84.
Tam CS, O'Brien S, Wierda W, et al. Long-term results of the fludarabine, cyclophosphamide, and rituximab regimen as initial therapy of chronic lymphocytic leukemia. Blood. 2008;112:975–80.
Hamblin TJ, Davis Z, Gardiner A, et al. Unmutated Ig V(H) genes are associated with a more aggressive form of chronic lymphocytic leukemia. Blood. 1999;94:1848–54.
Byrd JC, Furman RR, Coutre SE, et al. Targeting BTK with ibrutinib in relapsed chronic lymphocytic leukemia. N Engl J Med. 2013;369:32–42.
Brown JR, Byrd JC, Coutre SE, et al. Idelalisib, an inhibitor of phosphatidylinositol 3-kinase p110delta, for relapsed/refractory chronic lymphocytic leukemia. Blood. 2014;123:3390–7.
Gopal AK, Kahl BS, de Vos S, et al. PI3Kdelta inhibition by idelalisib in patients with relapsed indolent lymphoma. N Engl J Med. 2014;370:1008–18.
Burger JA, Tedeschi A, Barr PM, et al. Ibrutinib as initial therapy for patients with chronic lymphocytic leukemia. N Engl J Med. 2015;373:2425–37.
Hotchkiss RS, Strasser A, McDunn JE, Swanson PE. Cell death. N Engl J Med. 2009;361:1570–83.
Hanahan D, Weinberg RA. The hallmarks of cancer. Cell. 2000;100:57–70.
Hanahan D, Weinberg RA. Hallmarks of cancer: the next generation. Cell. 2011;144:646–74.
Strasser A, Harris AW, Jacks T, Cory S. DNA damage can induce apoptosis in proliferating lymphoid cells via p53-independent mechanisms inhibitable by Bcl-2. Cell. 1994;79:329–39.
Schmitt CA, Rosenthal CT, Lowe SW. Genetic analysis of chemoresistance in primary murine lymphomas. Nat Med. 2000;6:1029–35.
Huang DC, O'Reilly LA, Strasser A, Cory S. The anti-apoptosis function of Bcl-2 can be genetically separated from its inhibitory effect on cell cycle entry. EMBO J. 1997;16:4628–38.
Miyashita T, Reed JC. Bcl-2 gene transfer increases relative resistance of S49.1 and WEHI7.2 lymphoid cells to cell death and DNA fragmentation induced by glucocorticoids and multiple chemotherapeutic drugs. Cancer Res. 1992;52:5407–11.
Miyashita T, Reed JC. Bcl-2 oncoprotein blocks chemotherapy-induced apoptosis in a human leukemia cell line. Blood. 1993;81:151–7.
Kamesaki S, Kamesaki H, Jorgensen TJ, et al. Bcl-2 protein inhibits etoposide-induced apoptosis through its effects on events subsequent to topoisomerase II-induced DNA strand breaks and their repair. Cancer Res. 1993;53:4251–6.
Anderson MA, Huang D, Roberts A. Targeting BCL2 for the treatment of lymphoid malignancies. Semin Hematol. 2014;51:219–27.
Chen L, Willis SN, Wei A, et al. Differential targeting of prosurvival Bcl-2 proteins by their BH3-only ligands allows complementary apoptotic function. Mol Cell. 2005;17:393–403.
Veis DJ, Sorenson CM, Shutter JR, Korsmeyer SJ. Bcl-2-deficient mice demonstrate fulminant lymphoid apoptosis, polycystic kidneys, and hypopigmented hair. Cell. 1993;75:229–40.
Merino D, Khaw SL, Glaser SP, et al. Bcl-2, Bcl-x(L), and Bcl-w are not equivalent targets of ABT-737 and navitoclax (ABT-263) in lymphoid and leukemic cells. Blood. 2012;119:5807–16.
Mason KD, Carpinelli MR, Fletcher JI, et al. Programmed anuclear cell death delimits platelet life span. Cell. 2007;128:1173–86.
Peperzak V, Vikstrom I, Walker J, et al. Mcl-1 is essential for the survival of plasma cells. Nat Immunol. 2013;14:290–7.
Wei MC, Zong WX, Cheng EH, et al. Proapoptotic BAX and BAK: a requisite gateway to mitochondrial dysfunction and death. Science. 2001;292:727–30.
Zong WX, Lindsten T, Ross AJ, et al. BH3-only proteins that bind pro-survival Bcl-2 family members fail to induce apoptosis in the absence of Bax and Bak. Genes Dev. 2001;15:1481–6.
Tsujimoto Y, Cossman J, Jaffe E, Croce CM. Involvement of the bcl-2 gene in human follicular lymphoma. Science. 1985;228:1440–3.
Tsujimoto Y, Croce CM. Recent progress on the human bcl-2 gene involved in follicular lymphoma: characterization of the protein products. Curr Top Microbiol Immunol. 1988;141:337–40.
Robertson LE, Plunkett W, McConnell K, et al. Bcl-2 expression in chronic lymphocytic leukemia and its correlation with the induction of apoptosis and clinical outcome. Leukemia. 1996;10:456–9.
Calin GA, Dumitru CD, Shimizu M, et al. Frequent deletions and down-regulation of micro- RNA genes miR15 and miR16 at 13q14 in chronic lymphocytic leukemia. Proc Natl Acad Sci. 2002;99:15524–9.
Pettersson M, Jernberg-Wiklund H, Larsson LG, et al. Expression of the bcl-2 gene in human multiple myeloma cell lines and normal plasma cells. Blood. 1992;79:495–502.
Agarwal B, Naresh KN. Bcl-2 family of proteins in indolent B-cell non-Hodgkin's lymphoma: study of 116 cases. Am J Hematol. 2002;70:278–82.
Vijay A, Gertz MA. Waldenstrom macroglobulinemia. Blood. 2007;109:5096–103.
Aisenberg AC, Wilkes BM, Jacobson JO. The bcl-2 gene is rearranged in many diffuse B-cell lymphomas. Blood. 1988;71:969–72.
Lessene G, Czabotar PE, Colman PM. BCL-2 family antagonists for cancer therapy. Nat Rev Drug Discov. 2008;7:989–1000.
Shuker SB, Hajduk PJ, Meadows RP, Fesik SW. Discovering high-affinity ligands for proteins: SAR by NMR. Science. 1996;274:1531–4.
Oltersdorf T, Elmore SW, Shoemaker AR, et al. An inhibitor of Bcl-2 family proteins induces regression of solid tumours. Nature. 2005;435:677–81.
Tse C, Shoemaker AR, Adickes J, et al. ABT-263: a potent and orally bioavailable Bcl-2 family inhibitor. Cancer Res. 2008;68:3421–8.
Wilson WH, O'Connor OA, Czuczman MS, et al. Navitoclax, a targeted high-affinity inhibitor of BCL-2, in lymphoid malignancies: a phase 1 dose-escalation study of safety, pharmacokinetics, pharmacodynamics, and antitumour activity. Lancet Oncol. 2010;11:1149–59.
Roberts AW, Seymour JF, Brown JR, et al. Substantial susceptibility of chronic lymphocytic leukemia to BCL2 inhibition: results of a phase I study of navitoclax in patients with relapsed or refractory disease. J Clin Oncol. 2012;30:488–96.
Souers AJ, Leverson JD, Boghaert ER, et al. ABT-199, a potent and selective BCL-2 inhibitor, achieves antitumor activity while sparing platelets. Nat Med. 2013;19:202–8.
Roberts AW, Davids MS, Pagel JM, et al. Targeting BCL2 with Venetoclax in relapsed chronic lymphocytic leukemia. N Engl J Med. 2016;374:311–22.
van Delft MF, Wei AH, Mason KD, et al. The BH3 mimetic ABT-737 targets selective Bcl-2 proteins and efficiently induces apoptosis via Bak/Bax if Mcl-1 is neutralized. Cancer Cell. 2006;10:389–99.
Mason KD, Vandenberg CJ, Scott CL, et al. In vivo efficacy of the Bcl-2 antagonist ABT-737 against aggressive Myc-driven lymphomas. Proc Natl Acad Sci USA. 2008;105:17961–6.
Kang MH, Kang YH, Szymanska B, et al. Activity of vincristine, L-ASP, and dexamethasone against acute lymphoblastic leukemia is enhanced by the BH3-mimetic ABT-737 in vitro and in vivo. Blood. 2007;110:2057–66.
Kline MP, Rajkumar SV, Timm MM, et al. ABT-737, an inhibitor of Bcl-2 family proteins, is a potent inducer of apoptosis in multiple myeloma cells. Leukemia. 2007;21:1549–60.
Mason KD, Khaw SL, Rayeroux KC, et al. The BH3 mimetic compound, ABT-737, synergizes with a range of cytotoxic chemotherapy agents in chronic lymphocytic leukemia. Leukemia. 2009;23:2034–41.
Ackler S, Mitten MJ, Foster K, et al. The Bcl-2 inhibitor ABT-263 enhances the response of multiple chemotherapeutic regimens in hematologic tumors in vivo. Cancer Chemother Pharmacol. 2010;66:869–80.
Roberts AW, Advani RH, Kahl BS, et al. Phase 1 study of the safety, pharmacokinetics, and antitumour activity of the BCL2 inhibitor navitoclax in combination with rituximab in patients with relapsed or refractory CD20+ lymphoid malignancies. Br J Haematol. 2015;170:669–78.
Kipps TJ, Eradat H, Grosicki S, et al. A phase 2 study of the BH3 mimetic BCL2 inhibitor navitoclax (ABT-263) with or without rituximab, in previously untreated B-cell chronic lymphocytic leukemia. Leuk Lymphoma. 2015;56:2826–33.
Kipps TJ, Swinnen LJ, Wierda WG, et al. Navitoclax (ABT-263) plus Fludarabine/Cyclophosphamide/Rituximab (FCR) or Bendamustine/Rituximab (BR): a phase 1 study in patients with relapsed/refractory Chronic Lymphocytic Leukemia (CLL). Blood. 2011;118:3904.
Zhang H, Nimmer PM, Tahir SK, et al. Bcl-2 family proteins are essential for platelet survival. Cell Death Differ. 2007;14:943–51.
Khaw SL, Merino D, Anderson MA, et al. Both leukaemic and normal peripheral B lymphoid cells are highly sensitive to the selective pharmacological inhibition of prosurvival Bcl-2 with ABT-199. Leukemia. 2014;28:1207–15.
Gong JN, Khong T, Segal D, et al. Hierarchy for targeting pro-survival BCL2 family proteins in multiple myeloma: pivotal role of MCL1. Blood. 2016;14:1834–44.
Vogler M, Dinsdale D, Dyer MJ, Cohen GM. ABT-199 selectively inhibits BCL2 but not BCL2L1 and efficiently induces apoptosis of chronic lymphocytic leukaemic cells but not platelets. Br J Haematol. 2013;163:139–42.
Anderson MA, Deng J, Seymour JF, et al. The BCL2 selective inhibitor venetoclax induces rapid onset apoptosis of CLL cells in patients via a TP53 independent mechanism. Blood. 2016;127(25):3215–24.
Chiron D, Dousset C, Brosseau C, et al. Biological rational for sequential targeting of Bruton tyrosine kinase and Bcl-2 to overcome CD40-induced ABT-199 resistance in mantle cell lymphoma. Oncotarget. 2015;6:8750–9.
Cao Y, Hunter ZR, Liu X, et al. CXCR4 WHIM-like frameshift and nonsense mutations promote ibrutinib resistance but do not supplant MYD88(L265P) -directed survival signalling in Waldenstrom macroglobulinaemia cells. Br J Haematol. 2015;168:701–7.
Touzeau C, Dousset C, Le Gouill S, et al. The Bcl-2 specific BH3 mimetic ABT-199: a promising targeted therapy for t(11;14) multiple myeloma. Leukemia. 2014;28:210–2.
Khaw SL, Suryani S, Evans K, et al. Venetoclax responses of pediatric ALL xenografts reveal sensitivity of MLL-rearranged leukemia. Blood. 2016;128:1382–95.
Benito JM, Godfrey L, Kojima K, et al. MLL-rearranged acute lymphoblastic Leukemias activate BCL-2 through H3K79 methylation and are sensitive to the BCL-2-specific antagonist ABT-199. Cell Rep. 2015;13:2715–27.
Pan R, Hogdal LJ, Benito JM, et al. Selective BCL-2 inhibition by ABT-199 causes on-target cell death in acute myeloid leukemia. Cancer Discov. 2014;4:362–75.
Chan SM, Thomas D, Corces-Zimmerman MR, et al. Isocitrate dehydrogenase 1 and 2 mutations induce BCL-2 dependence in acute myeloid leukemia. Nat Med. 2015;21:178–84.
Davids M, Roberts A, Seymour J, et al. A phase I first-in-human study of venetoclax in patients with relapsed or refractory non-Hodgkin lymphoma. J Clin Oncol. 2017;35(8):826–33.
Seymour J, Ma S, Phase BD. 1b study of venetoclax plus rituximab in relapsed or refractory chronic lymphocytic leukaemia. Lancet Oncol. 2017;18(2):230–40.
Stilgenbauer S, Eichhorst B, Schetelig J, et al. Venetoclax in relapsed or refractory chronic lymphocytic leukaemia with 17p deletion: a multicentre, open-label, phase 2 study. Lancet Oncol. 2016;17(6):768–78.
Edwards SK, Han Y, Liu Y, et al. Signaling mechanisms of bortezomib in TRAF3-deficient mouse B lymphoma and human multiple myeloma cells. Leuk Res. 2016;41:85–95.
Qin JZ, Ziffra J, Stennett L, et al. Proteasome inhibitors trigger NOXA-mediated apoptosis in melanoma and myeloma cells. Cancer Res. 2005;65:6282–93.
Moreau P, Chanan-Khan A, Roberts AW, et al. Safety and efficacy of Venetoclax (ABT-199/GDC-0199) in combination with Bortezomib and dexamethasone in relapsed/refractory multiple myeloma: phase 1b results. Blood. 2015;126:3038–8.
DiNardo C, Pollyea D, Pratz K, et al. A phase 1b study of Venetoclax (ABT-199/GDC-0199) in combination with Decitabine or Azacitidine in treatment-naive patients with acute Myelogenous leukemia who are ≥ to 65 years and not eligible for standard induction therapy. Blood. 2015;126:327.
Lew TE, Anderson MA, Tam CS, et al. Clinicopathological features and outcomes of progression for Chronic Lymphocytic Leukaemia (CLL) treated with the BCL2 inhibitor venetoclax. Blood. 2016;128:3223.
Davids MS, Roberts AW, Seymour JF, et al. Safety, efficacy and immune effects of venetoclax 400 mg daily in patients with relapsed chronic lymphocytic leukemia (CLL). J Clin Oncol (Meeting Abstracts). 2016;34:7527.
Fresquet V, Rieger M, Carolis C, et al. Acquired mutations in BCL2 family proteins conferring resistance to the BH3 mimetic ABT-199 in lymphoma. Blood. 2014;123:4111–9.
Bodo J, Zhao X, Durkin L, et al. Acquired resistance to venetoclax (ABT-199) in t(14;18) positive lymphoma cells. Oncotarget. 2016;7:70000–10.
Punnoose EA, Leverson JD, Peale F, et al. Expression profile of BCL-2, BCL-XL, and MCL-1 predicts pharmacological response to the BCL-2 selective antagonist Venetoclax in multiple myeloma models. Mol Cancer Ther. 2016;15:1132–44.
Choudhary GS, Tat TT, Misra S, et al. Cyclin E/Cdk2-dependent phosphorylation of Mcl-1 determines its stability and cellular sensitivity to BH3 mimetics. Oncotarget. 2015;6:16912–25.
Bojarczuk K, Sasi BK, Gobessi S, et al. BCR signaling inhibitors differ in their ability to overcome Mcl-1-mediated resistance of CLL B cells to ABT-199. Blood. 2016;127:3192–201.
Thijssen R, Slinger E, Weller K, et al. Resistance to ABT-199 induced by microenvironmental signals in chronic lymphocytic leukemia can be counteracted by CD20 antibodies or kinase inhibitors. Haematologica. 2015;100:e302–6.
Chiron D, Bellanger C, Papin A, et al. Lymphoid-like environment, which promotes proliferation and induces resistance to BH3-Mimetics, is counteracted by Obinutuzumab in MCL: biological rationale for the oasis clinical trial. Blood. 2016;128:1096.
Kumar S, Vij R, Kaufman J, et al. Phase 1 study of Venetoclax monotherapy for relapsed/refractory multiple myeloma. In Haematologica. Ferrata Storti Foundation Via Giuseppe Belli 4, 27100 Pavia, Italy 2016:328–328.
Konopleva M, Pollyea DA, Potluri J, et al. Efficacy and biological correlates of response in a phase II study of Venetoclax monotherapy in patients with acute Myelogenous leukemia. Cancer Discov. 2016;6:1106–17.
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Anderson, M.A., Roberts, A.W., Seymour, J.F. (2018). BCL2 Inhibitors: Insights into Resistance. In: Ferreri, A. (eds) Resistance of Targeted Therapies Excluding Antibodies for Lymphomas. Resistance to Targeted Anti-Cancer Therapeutics, vol 17. Springer, Cham. https://doi.org/10.1007/978-3-319-75184-9_2
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