Neuroendocrine prostate cancer

Subtype of Prostate cancer

Clinical / Scientific

NEPC is a lineage-plastic, often AR-low state with TP53/RB1 loss, MYCN and epigenetic reprogramming. It should not inherit AR-targeted adjunct maps uncritically.

Core Biological Drivers

TP53 / RB1

Lineage-plasticity enablers.

MYCN / epigenetic rewiring

Neuronal programmes.

Key Pathways

p53

Scientific explanation

TP53 encodes a stress-responsive factor controlling cell-cycle arrest, and metabolic adaptation. Loss or mutation is among the most common cancer events.

MYC

Scientific explanation

MYC factors coordinate biomass accumulation, ribosome biogenesis, and glutamine use. Amplification or pathway activation is common.

Notch

Scientific explanation

Notch receptors undergo ligand-induced cleavage to NICD, altering lineage and stem/progenitor decisions. Context determines oncogenic versus tumour-suppressive roles.

Glycolysis

Scientific explanation

Aerobic (Warburg metabolism) supports ATP, biomass and redox buffering even when oxygen is available. Hexokinase, PKM2 and lactate export are frequent nodes.

BCL-2 family

Scientific explanation

BCL-2, BCL-XL, MCL-1 and BAX/BAK control outer-membrane permeabilization, a core checkpoint frequently skewed toward survival in lymphoid and solid tumours.

Autophagy

Scientific explanation

recycles organelles and can support survival under nutrient or therapy stress. Context determines tumour-suppressive versus therapy-protective roles.

Pathway Convergence

Target → pathway → downstream effect → biological consequence. Shared intersections are mechanistic maps, not protocols.

Energy stress

Energetic stress activates AMPK, which can restrain mTORC1. Biguanides and related tools map onto this axis in models.

Complex I / ATP stress
↓
AMPK
↓
mTOR restraint
↓
Reduced anabolism

Inflammatory survival

Chronic cytokine tone activates NF-κB and STAT3 transcriptional programmes that favour survival, invasion and sometimes immune evasion.

Cytokines
↓
NF-κB / STAT3
↓
Survival and invasion genes
↓
Therapy-tolerant phenotype

Metabolic Vulnerabilities

Aerobic supports ATP, biomass and acidification even when oxygen is available. Extent varies by tumour and remains a vulnerability hypothesis rather than a uniform target.

Glutamine anaplerosis and nucleotide nitrogen demand are prominent in MYC-high and rapidly proliferating tumours. Dependence is heterogeneous.

Tumor Microenvironment

Disordered vasculature creates , HIF-1α stabilization, induction and immune-suppressive adenosine/lactate milieus.

Metastasis Module

, protease-mediated invasion, , circulating tumour-cell survival and organ-specific colonization form the metastatic cascade. Pre-metastatic niches and vascular permeability influence tropism.

Resistance Biology

Intrinsic AR independence and apoptotic threshold change.

Cancer Stemness

Wnt, Notch, Hedgehog, ALDH and CD44-associated programmes can mark stem-like fractions with quiescence and therapy tolerance. These markers are not interchangeable across tumour types.

Mechanism-Based Adjunctive Strategies

Compounds appear only where a mechanistic overlap exists for this cancer. Evidence tiers are not equivalent. Nothing here is a treatment recommendation.

Hydroxychloroquine

Early ClinicalIn VivoIn Vitro

Target / Mechanism

Lysosomotropic agent that raises endosomal/autophagosomal pH, impairing flux. Combination trials in oncology have been mixed; blockade is not equivalent to proven benefit.

Cancer relevance

Lysosomal pH elevation impairs flux. Early combination trials exist; benefit is not established and toxicity/retinal risk remain labelled concerns.

Autophagy-modulation research combinations. Convergence: Autophagy.

Mebendazole

In VitroIn VivoMechanistically Plausible

Target / Mechanism

Benzimidazole that binds β-. Mammalian disruption, mitotic arrest and related signalling in cancer models are preclinical and are not an approved anticancer use.

Cancer relevance

disruption can trigger mitotic stress and in cell and animal models. This is not an established oncology use.

Experimental antimitotic / microtubule stress. Convergence: Apoptosis, p53.

Disulfiram

In VitroIn VivoEarly Clinical

Target / Mechanism

ALDH ; copper-complexed forms can inhibit proteasome and NF-κB-related survival programmes in models. Clinical oncology evidence remains limited.

Cancer relevance

ALDH and copper-dependent proteasome/NF-κB stress in models; clinical oncology remains limited.

ALDH / redox experimental context. Convergence: Cancer stemness, NF-κB, Oxidative stress.

Niclosamide

In VitroIn VivoMechanistically Plausible

Target / Mechanism

uncoupler in cestodes; mammalian models report , Wnt/β-catenin and modulation. Those host-signalling findings are investigational/preclinical.

Cancer relevance

Models report Wnt/β-catenin, and effects. Host signalling findings remain investigational.

Wnt / STAT3 signalling models. Convergence: Wnt/β-catenin, JAK/STAT, mTOR.

Research Context

  1. NEPC. Beltran H, et al. Divergent clonal evolution of castration-resistant neuroendocrine prostate cancer. Nat Med. 2016;22(3):298-305. https://doi.org/10.1038/nm.4045
  2. Hallmarks. Hanahan D, Weinberg RA. Hallmarks of cancer: the next generation. Cell. 2011;144(5):646-674. https://doi.org/10.1016/j.cell.2011.02.013

This oncology atlas is educational. Pathway maps, adjunctive strategies, and compound listings describe mechanistic relevance. They do not establish clinical efficacy, do not recommend treatment, and are not a substitute for oncology care. Evidence tiers are not equivalent.