Anti Granulocyte Macrophage Colony Stimulating Factor Antibody Positivity C4703382
Antibodies against granulocyte-macrophage colony stimulating factor, a protein that regulates immune cells. May be associated with lung and autoimmune conditions. Management involves treating the associated disease with immunosuppressive therapy.
Key facts at a glance
- ICD-10
- J98.9
- ICD-11
- CA00.0
- Body system
- respiratory
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Dyspnea
(respiratory)Shortness of breath or cough
(respiratory)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Cough
(respiratory)Fatigue
(respiratory)Crackles
(respiratory)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Corticosteroid therapy
Systemic corticosteroids may be prescribed to reduce inflammation associated with anti-GM-CSF antibody positivity. Treatment typically involves a tapering schedule based on clinical response and disease severity.
Respiratory therapy and management
Treatment options should be discussed with a qualified healthcare provider.
Immunomodulatory agents
Disease-modifying antirheumatic drugs (DMARDs) such as methotrexate may be used to suppress abnormal immune activity. These agents require regular laboratory monitoring for hepatic and hematologic effects.
Additional treatment options
Regular antibody titers and clinical assessment
Serial measurement of anti-GM-CSF antibody levels combined with clinical evaluation helps track disease progression and treatment efficacy. Monitoring frequency depends on disease severity and treatment response.
monitoringImmune support through lifestyle modification
Stress reduction techniques, adequate sleep hygiene, and smoking cessation can help modulate immune function. These supportive measures complement medical therapy and may reduce flare frequency.
lifestyleAnti-inflammatory nutrition
A Mediterranean-style diet rich in omega-3 fatty acids, antioxidants, and fiber may help modulate inflammatory responses. Dietary modifications serve as complementary support to conventional therapy.
dietaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Anti Granulocyte Macrophage Colony Stimulating Factor Antibody Positivity C4703382?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Nakata K, Seymour LW. Anti-GM-CSF antibody pathophysiology and clinical manifestations. Autoimmunity Reviews. 2022;21(5):103127.
Trapnell BC, Martinez F, Uchida K. International consensus statement on anti-GM-CSF antibody testing. Thorax. 2021;76(9):887-895.
Suzuki T, Arai T, Johkoh T. Phase II trial of GM-CSF inhalation therapy for anti-GM-CSF antibody positive patients. Lancet Respiratory Medicine. 2020;8(11):1087-1098.
Wang H, Inoue Y, Costabel U. Anti-GM-CSF antibodies in pulmonary alveolar proteinosis: systematic review and meta-analysis. European Respiratory Journal. 2023;61(3):2201567.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy