Genital Chlamydia infections have increased over 4-fold in the last decade. Untreated infections lead to pelvic inflammatory disease, ectopic pregnancy and infertility. These conditions are due to the inflammatory immune response elicited by infections that cause scarring and oviduct blockage. The proposed studies will determine how the immune system causes tissue damage and how this damage can be avoided to enable the development a vaccine that protects women against infection and infertility.
Simultaneous Targeting Of Contraception And Sexually Transmitted Disease
Funder
National Health and Medical Research Council
Funding Amount
$681,380.00
Summary
This research will generate a completely novel topical contraceptive agent that becomes activated on contact with semen and will simultaneously protect the user against both unwanted fertility and sexually transmitted disease. A prototype compound has already been developed and patented. This research is aimed at the chemical optimization of this reagent, analysis of its mechanism-of-action and characterization of its anti-microbial activity against chlamydia, gonorrhoea, herpes simplex and HIV
Mechanisms And Utilisation Of IFN-epsilon-mediated Protection Against Chlamydia Reproductive Tract Infection
Funder
National Health and Medical Research Council
Funding Amount
$750,486.00
Summary
Chlamydia is a common cause of sexually transmitted diseases resulting in pelvic inflammatory disease, infertility and ectopic pregnancy. There are no vaccines that prevent infection or disease. We have discovered a new factor in the immune system (interferon-epsilon) that only occurs in the reproductive tract. If this factor is absent then Chlamydia infections are more severe. We will investigate how this factor protects against infection and if we can use it as a new agent against Chlamydia ST ....Chlamydia is a common cause of sexually transmitted diseases resulting in pelvic inflammatory disease, infertility and ectopic pregnancy. There are no vaccines that prevent infection or disease. We have discovered a new factor in the immune system (interferon-epsilon) that only occurs in the reproductive tract. If this factor is absent then Chlamydia infections are more severe. We will investigate how this factor protects against infection and if we can use it as a new agent against Chlamydia STDs.Read moreRead less
A Novel Reproductive Tract Factor That Protects Against Chlamydia
Funder
National Health and Medical Research Council
Funding Amount
$541,133.00
Summary
Chlamydia is a common cause of sexually transmitted diseases resulting in pelvic inflammatory disease, infertility and ectopic pregnancy. There are no vaccines that prevent infection or disease. We have discovered a new factor in the immune system (interferon-epsilon) that only occurs in the reproductive tract. If this factor is absent then Chlamydia infections are more severe. We will investigate how this factor protects against infection and if we can use it as a new agent against Chlamydia ST ....Chlamydia is a common cause of sexually transmitted diseases resulting in pelvic inflammatory disease, infertility and ectopic pregnancy. There are no vaccines that prevent infection or disease. We have discovered a new factor in the immune system (interferon-epsilon) that only occurs in the reproductive tract. If this factor is absent then Chlamydia infections are more severe. We will investigate how this factor protects against infection and if we can use it as a new agent against Chlamydia STDs.Read moreRead less
This study aims to determine the extent to which semen is important in initiating the maternal immune response to the fetus and placenta during pregnancy. We postulate that exposure to paternal proteins in sperm and other factors present in the semen may have a cumulative, beneficial effect in 'educating' the female immune system to respond in the correct way to the embryo when pregnancy occurs. To investigate this, the behaviour and movements of white blood cells responding to semen will be stu ....This study aims to determine the extent to which semen is important in initiating the maternal immune response to the fetus and placenta during pregnancy. We postulate that exposure to paternal proteins in sperm and other factors present in the semen may have a cumulative, beneficial effect in 'educating' the female immune system to respond in the correct way to the embryo when pregnancy occurs. To investigate this, the behaviour and movements of white blood cells responding to semen will be studied during the period after mating, in which the uterus prepares for and accommodates to pregnancy. In particular, the study will focus on the roles of a specific chemical messenger substance in semen, called transforming growth factor (TGF)-beta, which triggers the molecular changes leading to maternal immune tolerance. A deeper understanding of these events will have an important impact in human and veterinary medicine where implantation failure is a major cause of reproductive loss and inadequate placental growth poses a threat to the health of the conceptus both in utero and into adult life.Read moreRead less