Decidualisation: origin and role of associated cells

Area of Science:

• Reproductive Biology
• Developmental Biology
• Cell Biology

Background:

• Decidualisation is the transformation of the uterine endometrium during early pregnancy.
• This process is crucial for successful embryo implantation and development in mammals.
• It can be induced by natural stimuli (blastocyst) or artificial methods in pseudopregnant models.

Purpose of the Study:

• To review factors inducing decidualisation in the mammalian endometrium.
• To describe the structural characteristics of decidual cells and granulated metrial gland cells.
• To explore the origin and functional roles of decidualisation-associated cells.

Main Methods:

• Literature review of histophysiological and morphological studies.
• Analysis of factors influencing decidualisation.
• Discussion of cell origin and function based on existing research.

Main Results:

• Decidual cells arise from stromal cell proliferation stimulated by the blastocyst or artificial stimuli.
• Distinct morphological features differentiate decidual cells in different endometrial regions.
• Granulated metrial gland cells are a distinct cell type emerging in the endometrium, prominent in the mesometrial triangle.

Conclusions:

• Decidualisation involves complex histophysiological reactions and specific cell types.
• The origin and functional roles of decidual and metrial gland cells are linked to their structure and haemopoietic origins.
• Understanding these cells is vital for comprehending pregnancy establishment and maintenance.