Related Experiment Video
Updated: Aug 15, 2026

Long-term Behavioral and Reproductive Consequences of Embryonic Exposure to Low-dose Toxicants
Published on: March 6, 2018
Endocrine-disrupting pesticides and selected hormonally dependent cancers
1Division of Epidemiology and Public Health, School of Community Health Sciences, University Hospital, Queens Medical Centre, Nottingham, United Kingdom. kenneth.muir@nottingham.ac.uk
Abstract:
Pesticides and other endocrine disrupters represent a credible "new" risk factor for hormonally dependent cancers. To date, most work has centered on breast cancer, and most studies have not shown increased risks. Additional epidemiologic investigations are warranted, but they would benefit from a better understanding of the mechanisms, dose, and co-factors involved.
Insights
Pesticides and endocrine disruptors may pose a risk for hormone-related cancers. Further research is needed to understand the mechanisms, dosage, and contributing factors for these environmental exposures.
Area of Science:
- Environmental Health
- Oncology
- Endocrinology
Background:
- Pesticides and endocrine-disrupting chemicals (EDCs) are emerging as potential risk factors for hormonally dependent cancers.
- Current research primarily focuses on breast cancer, with limited evidence of increased risk from EDCs.
Purpose of the Study:
- To highlight the role of pesticides and EDCs as potential risk factors for hormone-related cancers.
- To underscore the need for further epidemiologic studies on endocrine disruptors and cancer.
- To emphasize the importance of understanding mechanisms, dosage, and co-factors in EDC-cancer relationships.
Main Methods:
- Review of existing literature on pesticides, endocrine disruptors, and hormonally dependent cancers.
- Analysis of current research trends, particularly concerning breast cancer.
- Identification of knowledge gaps in the understanding of EDC-cancer links.
Main Results:
- Pesticides and EDCs are credible, yet understudied, risk factors for hormone-sensitive cancers.
- Most studies investigating EDCs and breast cancer have not demonstrated a significant increase in risk.
- There is a need for more comprehensive epidemiologic research.
Conclusions:
- Additional epidemiologic investigations are warranted to clarify the association between EDCs and cancer risk.
- Future studies should focus on elucidating the underlying mechanisms, relevant exposure doses, and potential co-factors.
- A deeper understanding of these factors is crucial for assessing the true risk posed by endocrine disruptors.
Related Concept Videos
Target Cell Response to Hormones
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
Major Hormones and Their Functions
Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and lactation.
Chemical Signaling in the Endocrine System
Lipid-soluble hormones, such as steroid hormones, demonstrate an intracellular action. These hormones traverse cell membranes due to their lipid nature. Once inside the target cell, they...
Secondary Messengers in Hormone Action
Many hormones bind to transmembrane G protein-coupled receptors that connect to regulatory G proteins. These G proteins can then activate enzymes such as adenylyl cyclase or phospholipase C. Adenylyl cyclase converts ATP to cAMP, activating...
Mitogens and the Cell Cycle
Regulation of Hormone Secretion
Humoral stimuli,...

