Apoptosis and the Fas/Fas Ligand system in the normal Reproductive tissues: Development and Cancer

6/23/01


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Table of Contents

Apoptosis and the Fas/Fas Ligand system in the normal Reproductive tissues: Development and Cancer

The Cellular Default Condition is Cell Death or Apoptosis

Survival signals are delivered by growth factors and hormones that actively stimulates proliferation and suppress default death pathways or apoptosis

Tissue Homeostasis

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An imbalance between these two process can result in either unwanted tissue atrophy or tissue growth

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The Fas/Fas Ligand System

The Fas/FasL System

T-cell Activation

T-cell Activation: Fas/Fas Ligand Mediated Apoptosis

Fas/Fas Ligand Mediated Apoptosis

Apoptosis

Apoptosis

Fas/Fas Ligand System

The Fas/FasL System

Immune Privilege

Immune Privilege

The Fas/FasL system in Immune Privilege Organs

FasL expression in trophoblast Cells

FasL expression in Human Placenta

FasL and the Trophoblast Immune Privilege Status

FasL and the Trophoblast Immune Privilege Status

Evidence against the role of FasL in the immune privilege status of the placenta

Fas expression in human placenta

Fas expression in human placenta

FasL expression in Human Choriocarcinoma cells

Immune Privilege status of the Tumor

Immune Surveillance

Increased tumor incidence in immune-suppressed patients

How tumor cells fool the immune system ?

Hypothesis

Immune privilege status of the tumor

Fas Ligand expression in Breast Cancer

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Immunological Reaction to a Breast Carcinoma

Fas Expression in Human Breast Cancer

MCF-7 cells Fas/FasL-mediated cytolytic activity

Conclusion

Fas and Fas Ligand Expression in Reproductive Tissues

The Fas/FasL system and Reproductive Tissue Remodeling

Mammary Gland Remodeling

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Conclusion

Fas Ligand Expression

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Tissue Remodeling

Tissue Remodeling (2)

The Fas/FasL System in the Normal Mammary Gland

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Regulation of FasL Expression by Sex Hormones

The Fas Ligand Promoter

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Tamoxifen: Dose Response

Induction of apoptosis by MCF-7 cells on Fas Positive Jurkat cells

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SERMS Profile

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Apoptosis Following Hormone Ablation

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Hormonal Ablation

Dead men may tell no tales,

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Apoptosis, Macrophages and Immune Protection

Apoptosis, Macrophages and Immune protection (2)

Apoptosis and Macrophages

Apoptosis and Macrophages

The Fas/FasL System

THE LAB

Author: Dr. Gil Mor

Email: gil.mor2yale.edu

Home Page: http://info.med.yale.edu/obgyn/reproimmuno

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