This document discusses graft versus host disease (GVHD), a condition that can occur after stem cell or organ transplantation where the donated cells or organ is rejected by the recipient's body. There are two main types of GVHD - acute and chronic. Acute GVHD develops within 100 days after transplantation and can affect the skin, gastrointestinal tract, or liver. Chronic GVHD can involve single or multiple organs and is a leading cause of health problems and death after stem cell transplants. While acute GVHD is often treated successfully with corticosteroids, chronic GVHD may require additional treatments such as Ibrutinib, Belumosudil, or Ruxolitinib that have been approved
History
Introduction
Classification of grafts
The Immunology of Allogeneic Transplantation
Genetics of graft rejection
Types of rejection
Recognition of Alloantigens
Effector Mechanisms of Allograft Rejection
Prevention of graft rejection
Graft versus host reaction
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People with specific cancers may go through a stem cell transplant. Graft vs host disease symptoms might appear when the donor cells attack the recipient’s cells.
History
Introduction
Classification of grafts
The Immunology of Allogeneic Transplantation
Genetics of graft rejection
Types of rejection
Recognition of Alloantigens
Effector Mechanisms of Allograft Rejection
Prevention of graft rejection
Graft versus host reaction
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consists of three pathways: 1. alternative
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3. lectin pathway
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People with specific cancers may go through a stem cell transplant. Graft vs host disease symptoms might appear when the donor cells attack the recipient’s cells.
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2. Transplant immunology
• Transplant immunology is the study of the immune response
that occurs when an organ or tissue is moved (grafted) from one
individual to another.
• A major problem following transplantation is that the immune
system of the recipient sees the grafted tissue as 'foreign' and
attacks and destroys it.
3. A condition that occurs when donated stem cells or bone
marrow (the graft) see the healthy tissues in the patient’s body
(the host) as foreign and attack them. It can also occur after an
organ transplant.
Graft-versus-host disease can cause damage to the host’s
tissues and organs, especially the skin, liver, intestines, eyes,
mouth, hair, nails, joints, muscles, lungs, kidneys, and genitals.
The signs and symptoms may be severe and life threatening.
Graft-versus-host disease can occur within the first few months
after transplant (acute) or much later (chronic). Also called
GVHD.
4. Types
• There are two main categories of GVHD:
Acute graft-versus-host disease
Chronic graft-versus-host disease
5. Acute graft-versus-host disease
This usually develops within the first 100 days after transplantation, but it can occur
later.
Acute GVHD can affect the skin, the gastrointestinal tract or the liver. Symptoms
may include,
A rash, with burning and redness of the skin.
Nausea, vomiting, abdominal cramps, loss of appetite and diarrhea indicate
involvement of the gastrointestinal tract.
Jaundice (yellowing of the skin or eyes) may indicate that GVHD has injured the
liver. Abnormalities of liver function would be noticed on blood test results.
6. Treatement
• Many patients who develop acute GVHD are successfully
treated with increased immunosuppression in the form of
corticosteroids (medicines such as prednisone,
methylprednisolone, dexamethasone, beclomethasone and
budesonide).
• The Food and Drug Administration (FDA) has approved the
drug Ruxolitinib (Jakafi®) for the treatment of steroid-
refractory acute GVHD in adult and pediatric patients 12 years
and older.
7. Chronic graft-versus-host disease
• This is a syndrome that may involve a single organ or several
organs. It is one of the leading causes of medical problems and
death after an allogeneic stem cell transplantation.
• Symptoms may include.
Mouth (A very dry mouth,Difficulty eating,Gum disease and tooth decay)
Skin (A rash,Dry, tight, itchy skin,A change in skin color)
Nails (Changes in nail texture,Hard, brittle nails,Nail loss)
Scalp and Body Hair (Loss of hair on the head,Premature gray hair,Loss of
body hair)
8. Cont...
Gastrointestinal Tract (Loss of appetite,Unexplained weight
loss,Nausea,Vomiting,Diarrhea,Stomach pain)
Lungs (Shortness of breath and difficulty breathing,Wheezing)
Liver (Abdominal swelling,Jaundice)
Muscles and Joints (Muscle weakness and cramps,Joint stiffness causing
difficult full extension of fingers, wrists, elbows, knees, ankles.)
9. Treatment
Prednisone is the standard first-line therapy for chronic GVHD
Food and Drug Administration (FDA) has approved three drugs
as second-line treatments:
Ibrutinib (Imbruvica®)
Belumosudil (Rezurock™)
Ruxolitinib (Jakafi®)