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. 2019 Oct 18;11(10):1591. doi: 10.3390/cancers11101591

Table 2.

Experimental strategies for resistance.

Author Drug Function Study Source Result Follow up p Ref
Takeshita, et al. Tamibarotene (TAM) RAR α agonist Clinical trial 270 Patients RFS %: TAM 94; ATRA 84 7- Year 0.027 [102]
Lo Coco, et al Gentuzumab Ozogamicin Anti CD33 + Calicamicin Prospective Study 16 Patients Relapse RFS % 43 ± 15% 31 month - [104]
Gale, et al CEP-701 (Lestaurtinib) FLT3 inhibitor In vitro Primary APL blast (n = 6) Greater effect on cell survival/proliferation in FLT3/ITD cells, but this inhibition was reduced in the presence of ATRA - - [105]
Mastrangelo, et al Ascorbate Megadose Pro-oxidant, In vitro Cells Lines (n = 6) Highly sensitive, with an average 50 % lethal concentration (LC50) of 3 mM Normal CD34+ not sensitive - - [108]
Noguera, et al Ascorbate Megadose Pro-oxidant, In vitro Primary APL (n = 9) and AML (n = 33) Blast; Cells Lines (n = 5) Higer sensitivity
ASC induce PML/RARa and PML degradation
ASC potenciate the effect of ATO
Normal CD34+ not sensitive
- < 0.001 [107]
Masciarelli, et al Tunicamycin Endoplasmic reticulum (ER) stress-inducing drug In vitro Primary APL Blast; ATRA sensitive and resistant APL cell lines ER stress + ATO induced apoptosis in RA-sensitive an RA-resistant APL cell lines - < 0.005 [114]
Gu, et al pharicin B, stabilizes RARα protein In vitro Primary APL Blast; ATRA sensitive and resistant APL cell lines Induced apoptosis in RA-sensitive and RA-resistant APL cell lines - < 0.001 [115]
Wang, et al LG-362B, caspases-mediated degradation of PML-RARα In vitro e in vivo Primary APL Blast; ATRA sensitive and resistant APL cell lines
Murin models
Inhibits the proliferation of APL in vitro and in vivo
Synergistic or additive differentiation effect with ATRA
Overcom ATRA resistance
- RTW: < 0.01 [116]
Ying, et al 2-bromopalmitate (2-Br) inhibitor of fatty acid oxidation In vitro Primary APL Blast; ATRA sensitive and resistant APL cell lines
Murin models
ATRA + 2Br to overcoming ATRA resistance - Blast: < 0.05 to < 0.001 (n = 7); > 0.05 (n = 4)
RTW: < 0.05
[118]
Ganesan et al ATO plus Bortezomib downregulation of the NFĸB pathway, PML-RARa degradation inhibition of the proteasome by bortezomib In vitro e in vivo ATO sensitive and resistant APL cell lines
Murin models
Synergistic effect in both ATO sensitive and ATO resistant APL cell lines
Reduce leukemic burden and induce long-term survival in an APL mouse model
- OS mouse: 0.0001 [82]
Hussain et al phenylarsine oxide (PAO) organic arsenic derivatives In vitro Cells Lines transfected with PLZF-RARa PLZF-RARa degradation - - [119]

RFS: relapse-free survival, RTW: reduction tumor weight, OS: overal survival.