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Blutwerte · Marker

AFP

Alpha-Fetoprotein · AFP

Tumormarker & Screening
Einheit:
ng/mL

AFP quantifies the level of alpha-fetoprotein, a glycoprotein associated with fetal development and liver pathology.

Reference Ranges

Reference
010ng/mL
0
10
LowNormalHigh
Reference
Unit · ng/mL

Reference ranges may vary slightly based on laboratory standards and patient demographics.

Overview

Übersicht

Alpha-fetoprotein (AFP) is a glycoprotein primarily produced during fetal development, playing a crucial role in immune regulation and maintaining immune balance during pregnancy. Postnatally, AFP expression is typically suppressed, except in cases of hepatocyte injury, regeneration, or malignant transformation, where its levels may rise. Clinically, AFP is a well-established biomarker for hepatocellular carcinoma (HCC), used in screening, prognosis, and monitoring treatment response. It is also associated with certain germ cell tumors. Researchers have developed various biosensing technologies to enhance AFP detection, offering increased sensitivity and real-time monitoring. In the context of athletic performance, biohacking, or longevity, AFP does not have a direct application. However, monitoring AFP levels could be relevant for individuals with liver health concerns, as it may reflect liver function and potential malignancies. Caveats in AFP testing include variability due to liver necroinflammation, the etiology of liver disease, and the need for standardized cut-off values. Additionally, factors such as recent intense exercise or biotin supplementation may interfere with test results, necessitating careful interpretation.

Klinische Bedeutung

Elevated AFP levels can indicate liver diseases such as hepatocellular carcinoma or germ cell tumors. Low levels are typical in healthy adults postnatally.

Dynamics

Trend Interpretation

Rising Values

Progressively rising AFP levels suggest worsening liver pathology or malignancy. Retest every 4 weeks if levels are outside the optimal range.

Falling Values

Progressively falling AFP levels may indicate effective treatment or resolution of liver pathology.

Re-test Interval

4 weeks if outside optimal range

Etiology

Causes — High & Low

Cause

Elevated Levels

  • Hepatocellular carcinoma
  • Liver cirrhosis
  • Germ cell tumors
  • Liver regeneration
  • Hepatitis
Cause

Low Levels

  • Healthy adult postnatal state
  • Effective cancer treatment
  • Resolved liver inflammation
  • Normal liver function
  • Non-malignant liver conditions
Protocol

How to Optimize

Lever

Lifestyle

  • Regular liver function monitoring
  • Avoidance of alcohol and hepatotoxins
  • Engagement in regular physical activity
Lever

Nutrition

  • Balanced diet rich in antioxidants
  • Adequate protein intake
  • Reduction of processed foods

Note:

Consult a healthcare provider for personalized advice, especially if liver disease is suspected.

Testing Guidelines

Fasting Not Required
Not Time-Sensitive

Testing Frequency

Every 6 months for high-risk individuals or those with liver disease.

Interfering Factors

  • Recent intense exercise
  • Biotin supplementation
  • Acute liver inflammation

Open Research Questions

Current research suggests that the optimal cut-off levels for AFP in different populations and disease states remain debated, particularly regarding its accuracy in liver disease contexts. Researchers have not yet established the full utility of combining AFP with other biomarkers like PIVKA-II for early HCC detection, especially in AFP-negative patients. Additionally, clinical questions remain unanswered about the long-term prognostic value of AFP in post-transplant settings and its effectiveness in monitoring treatment responses across diverse patient demographics.

20 Research Publications

1,429

Total Citations

4

Human/RCT

5.5

Avg. Influence

2025

Latest

Sort
Filter
#01

The Performance of AFP, AFP-3, DCP as Biomarkers for Detection of Hepatocellular Carcinoma (HCC): A Phase 3 Biomarker Study in the United States.

Tayob Nabihah, et al. · Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2023

HumanInfluence17.0
190
This phase 3 study evaluated the performance of AFP, AFP-L3, and DCP for hepatocellular carcinoma (HCC) detection. Researchers found that GALAD had the highest true positive rate for HCC detection but also increased false-positive results. The study concluded that while GALAD improved sensitivity, its performance was modest compared to other biomarkers.

Key findings

  1. 01GALAD demonstrated a higher true positive rate for detecting HCC compared to individual biomarkers.
  2. 02The use of GALAD resulted in an increased rate of false positives.
  3. 03The performance of GALAD was not significantly better than that of AFP-L3 alone or the HES scoring system.
View on PubMed
#02

PIVKA-II serves as a potential biomarker that complements AFP for the diagnosis of hepatocellular carcinoma.

HumanInfluence6.0
158
This study evaluated the diagnostic value of PIVKA-II as a complement to alpha-fetoprotein (AFP) for hepatocellular carcinoma (HCC). Researchers found that combining PIVKA-II with AFP improved diagnostic efficiency, especially for AFP-negative patients.
View on PubMed
#03

Elevated alpha-fetoprotein: differential diagnosis - hepatocellular carcinoma and other disorders.

ReviewInfluence3.0
153
This study focused on the differential diagnosis of elevated alpha-fetoprotein (AFP) levels in hepatocellular carcinoma (HCC) and other disorders. Researchers found that combining AFP-L3 with DCP can improve risk assessment for HCC. The findings suggest that monitoring these biomarkers can help predict disease progression and recurrence.
View on PubMed
#04

Alpha-fetoprotein: a renaissance.

ReviewInfluence3.0
140
This review summarized the advancements in alpha-fetoprotein (AFP) research over the past 50 years. Researchers found that while AFP is a significant tumor-associated protein, its biological role and mechanisms remain unclear, necessitating further investigation.
View on PubMed
#05

Effects of alpha-fetoprotein on the occurrence and progression of hepatocellular carcinoma.

ReviewInfluence6.0
139
This review examined the effects of alpha-fetoprotein (AFP) on the progression of hepatocellular carcinoma (HCC). Researchers found that elevated AFP levels are common in HCC patients and that AFP plays a complex role in regulating cell proliferation and immune response. The study suggests further exploration of AFP's role in HCC development.
View on PubMed
#06

Utility of combining PIVKA-II and AFP in the surveillance and monitoring of hepatocellular carcinoma in the Asia-Pacific region.

UnknownInfluence5.0
134
A panel of experts discussed the combined use of PIVKA-II and AFP for monitoring hepatocellular carcinoma (HCC). Researchers found that PIVKA-II could enhance detection of early HCC, particularly in AFP-negative patients, but noted the need for further evidence.
View on PubMed
#07

AFP-L3 and DCP strongly predict early hepatocellular carcinoma recurrence after liver transplantation.

Norman Joshua S, et al. · Journal of hepatology · 2023

HumanInfluence14.0
132
This study investigated the predictive capabilities of AFP-L3 and DCP in identifying hepatocellular carcinoma (HCC) recurrence after liver transplantation. Researchers found that a dual-biomarker combination of AFP-L3 and DCP strongly predicted post-transplant HCC recurrence, outperforming AFP alone.

Key findings

  1. 01AFP-L3 and DCP outperformed AFP in predicting liver cancer recurrence after transplantation.
  2. 02A combination of AFP-L3 ≥15% and DCP ≥7.5 predicted 61.1% of recurrences.
  3. 03Patients with high levels of both biomarkers had a significantly lower chance of remaining cancer-free after three years.
View on PubMed
#08

Alpha-fetoprotein: a review.

ReviewInfluence2.0
120
This review discussed the historical and clinical significance of alpha-fetoprotein (AFP) in various conditions. Researchers found that elevated AFP levels can indicate fetal abnormalities and certain malignancies, and highlighted its utility in monitoring cancer recurrence.
View on PubMed
#09

Alpha-fetoprotein: Past, present, and future.

ReviewInfluence2.0
73
This review examined the role of alpha-fetoprotein (AFP) in immune regulation, its use as a prognostic biomarker for hepatocellular carcinoma (HCC), and its potential as a therapeutic target. Researchers found that AFP is a powerful prognostic biomarker for HCC and is useful in monitoring treatment responses.
View on PubMed
#10

Alpha-fetoprotein for Diagnosis, Prognosis, and Transplant Selection.

Trevisani Franco, et al. · Seminars in liver disease · 2019

ReviewInfluence2.0
68
This review analyzed the utility of alpha-fetoprotein (AFP) as a biomarker for hepatocellular carcinoma (HCC) diagnosis and prognosis. Researchers found that AFP remains the most utilized biomarker for HCC and is valuable in selecting candidates for liver transplantation. The study emphasizes its importance in predicting cancer recurrence.

Key findings

  1. 01AFP remains the most widely used biomarker for diagnosing hepatocellular carcinoma (HCC).
  2. 02The study emphasizes AFP's significance in assessing prognosis for patients receiving treatment for HCC.
  3. 03Incorporating AFP into transplant criteria can help identify patients at higher risk of cancer recurrence.
View on PubMed

Clinical Trials (6)

6

Total Trials

2,969

Total Enrolled

STOP HCC-GAAD-APAC-Thailand

NCT07319299ENROLLING_BY_INVITATION
Sponsor

Mahidol University

Enrollment

2,100

Started

2025

Primary outcome

True Positive Rate (Sensitivity) of Ultrasound, AFP, and GAAD Score as Standalone Surveillance Modalities

Hepatecellular CarcinomaCirrhosisHBV Infection

Evaluation of AKR1B10 as a New Marker for Interventional Therapy of Hepatocellular Carcinoma

Sponsor

Hebei Medical University Third Hospital

Enrollment

200

Started

2024

Primary outcome

comparison of liver cancer markers AKR1B10, AFP, AFP-L3% and DCP before and after TACE

Hepatocellular Carcinoma

Diagnostic Accuracy of APAC, ASAP and GALAD Scores in Hepatocellular Carcinoma Among Cirrhotic Patients

Sponsor

Sohag University

Enrollment

90

Started

2023

Primary outcome

serum level of AFP-L3.

Hepatocellular Carcinoma

PD-1 Antibody + Apatinib Mesylate in 2+ Line Serum AFP-elevated Gastric Adenocarcinoma

NCT04006821Phase 2UNKNOWN
Sponsor

China Medical University, China

Enrollment

30

Started

2019

Primary outcome

Objective response rate (ORR)

Gastric CancerAFP

Maternal Serum Alpha-fetoprotein Level May Predict the Presence of Morbid Adherent Placenta

Sponsor

rasha medhat abdul-hady

Enrollment

150

Started

2017

Primary outcome

Maternal serum alpha-fetoprotein

Placenta Accreta

A Study of Ramucirumab (LY3009806) Versus Placebo in Participants With Hepatocellular Carcinoma and Elevated Baseline Alpha-Fetoprotein

NCT02435433Phase 3COMPLETED
Sponsor

Eli Lilly and Company

Enrollment

399

Started

2015

Primary outcome

Overall Survival (OS)

Hepatocellular Carcinoma

Publication Trend

Research publications about AFP over time

9total
1
'81
1
'13
1
'21
2
'23
2
'24
2
'25

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