Novel Compound, ND-17, Regulates the JAK/STAT, PI3K/AKT, and MAPK Pathways and Restrains Human T-lymphoid Leukemia

Weina Ma1,2, Yanhong Liu1,2, Panpan Lei1,2

  • 1School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P.R. China.

Abstract

Insights

A novel compound, ND-17, shows significant promise as a Janus kinase 2 (JAK2) inhibitor for treating T cell acute lymphoblastic leukemia (T-ALL). ND-17 effectively suppresses T-ALL cell proliferation by targeting JAK2 signaling pathways.

Area of Science:

  • Hematology
  • Oncology
  • Molecular Biology

Background:

  • T cell acute lymphoblastic leukemia (T-ALL) is a serious hematological malignancy.
  • The Janus kinase-signal transducer and activator of transcription (JAK-STAT) pathway is crucial in T-ALL development.
  • Inhibiting the key molecule JAK2 shows potential for suppressing T-ALL cell proliferation.

Purpose of the Study:

  • To investigate the in vitro anti-tumor effects of a novel nilotinib derivative, ND-17.
  • To explore the interaction of ND-17 with JAK2 in cancer cell lines.

Main Methods:

  • Tetrazolium assay and flow cytometry were used to assess cell proliferation, cell cycle, and apoptosis.
  • Surface plasmon resonance and western blot analyses evaluated ND-17/JAK2 binding interactions.
  • JAK2 knockdown and transfection were performed to understand ND-17's mechanism.

Main Results:

  • ND-17 demonstrated potent inhibition of T-ALL cells, cell cycle arrest at the S phase, and apoptosis induction.
  • ND-17 bound to JAK2's ATP pocket with high affinity, inhibiting JAK2 phosphorylation.
  • ND-17 suppressed multiple signaling pathways including JAK/STAT, PI3K/AKT/mTOR, and MAPK/ERK.

Conclusions:

  • ND-17 exhibits significant anti-tumor activity against T-ALL cells.
  • ND-17 acts as a potent JAK2 inhibitor, offering a potential therapeutic strategy for T-ALL.
  • Further research into ND-17 as a JAK2 inhibitor for T-ALL treatment is warranted.

Related Concept Videos

The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
9.5K
PI3K/mTOR/AKT Signaling Pathway01:22

PI3K/mTOR/AKT Signaling Pathway

The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...
4.1K
MAPK Signaling Cascades01:07

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
6.4K
NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
7.9K
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.7K
Non-Canonical Wnt Signaling Pathways01:41

Non-Canonical Wnt Signaling Pathways

Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
7.6K