Dysregulated Signaling Pathways in Canine Mammary Tumor and Human Triple Negative Breast Cancer: Advances and

Chen Mei1, Ying Liu1, Zhenyi Liu1

  • 1Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China.

Insights

Human breast cancer (HBC) and canine mammary tumors (CMTs) are prevalent globally. This review examines key signaling pathways and targeted drugs for HBC and CMT, aiding future drug development.

Area of Science:

  • Oncology
  • Comparative Pathology
  • Molecular Biology

Background:

  • Human breast cancer (HBC) and canine mammary tumors (CMTs) are common, aggressive malignancies with high mortality.
  • Tumorigenesis involves complex signaling pathways, necessitating targeted therapies.
  • Understanding shared pathways in HBC and CMT can inform dual-species therapeutic strategies.

Purpose of the Study:

  • To review dysregulated signaling pathways in HBC and CMT.
  • To identify targeted drugs for inhibiting tumor growth.
  • To provide a basis for developing more effective anti-cancer drugs.

Main Methods:

  • Literature review of signaling pathways in HBC and CMT.
  • Analysis of drug targets and therapeutic agents.
  • Comparative analysis of molecular mechanisms.

Main Results:

  • Key pathways including EGFR, PI3K/AKT/mTOR, Hippo, pyroptosis, and PD-1/PD-L1 are implicated in both HBC and CMT.
  • Various drugs targeting these pathways are utilized for tumor inhibition.
  • Shared pathway dysregulation suggests potential for cross-species therapeutic approaches.

Conclusions:

  • Targeting specific signaling pathways offers a promising strategy for treating HBC and CMT.
  • Further research into comparative pathway analysis can accelerate the development of novel, efficient anti-cancer drugs.
  • This review provides a foundation for developing dual-species therapies against mammary tumors.

Related Concept Videos

Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.2K
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...
7.2K
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
7.4K
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...
3.4K
Canonical Wnt Signaling Pathway02:54

Canonical Wnt Signaling Pathway

The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.7K
Mitogens and the Cell Cycle02:38

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.4K