Sources of hormones
Endocrinology terminology
• hormone:
• neuropeptide:
• non-peptide neurohormone:
• neurotransmitter:
Endocrinology terminology
• pheromone:
• lumone:
• growth factor:
• chalone:
• cytokine:
Classes of hormones
• Peptide hormones vary in size
Classes of hormones
• Peptide hormones vary in size
Classes of hormones
• Peptide hormones vary in form
Classes of hormones
• Peptide hormones vary in form
Classes of hormones
• Peptide hormones vary in subunits
Classes of hormones
• Tyrosine-derived hormones
Classes of hormones
• Sterol-derived hormones
• adrenal steroids
• gonadal steroids
cholesterol
Common steroid hormones
NGF
Growth factors
• usually stimulates cell proliferation and differentiation
Chalones
myo-/myo-myostatin wt myo+/myo-
Eicosanoids
• fatty acid-derived
Biosynthesis of eicosanoids
arachidonic acid
Some biological activities of eicosanoids
Anti-inflammatory drugs & eisosanoids
thromboxane leukotriene
arachidonic acid
fatty acids
Current research in eicosanoid function
Prostaglandin receptor
• PGE2 EP3 receptor
Cytokines
• Cytokines
Interleukins
IL-2
Interferons
IFN-beta
IFN-alpha
IFN-gamma
Tumor necrosis factors
TNF- associated with TNF receptor
Colony stimulating factors
GM-CSF