Abnormal expression of HADH, an enzyme of fatty acid oxidation, affects tumor development and prognosis (Review)
- Xiaoqing Wang
- Honghao Song
- Junyu Liang
- Yang Jia
- Yongfei Zhang
Affiliations: Department of Pediatric Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250021, P.R. China, Department of Thoracic Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250021, P.R. China, Post‑doctoral Research Station of Clinical Medicine, Liaocheng People's Hospital, Jinan, Shandong 252004, P.R. China, Department of Dermatology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250021, P.R. China
- Published online on: October 13, 2022 https://doi.org/10.3892/mmr.2022.12871
Copyright: © Wang
et al. This is an open access article distributed under the
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Tumor occurrence and progression are closely associated with abnormal energy metabolism and energy metabolism associated with glucose, proteins and lipids. The reprogramming of energy metabolism is one of the hallmarks of cancer. As a form of energy metabolism, fatty acid metabolism includes fatty acid uptake, de novo synthesis and β‑oxidation. In recent years, the role of abnormal fatty acid β‑oxidation in tumors has gradually been recognized. Mitochondrial trifunctional protein (MTP) serves an important role in fatty acid β‑oxidation and HADH (two subtypes: α subunit, HADHA and β subunit, HADHB) are important subunits of MTP. HADH participates in the steps of 2, 3 and 4 fatty acid β‑oxidation. However, there is no review summarizing the specific role of HADH in tumors. Therefore, the present study focused on HADH as the main indicator to explore the changes in fatty acid β‑oxidation in several types of tumors. The present review summarized the changes in HADH in 11 organs (cerebrum, oral cavity, esophagus, liver, pancreas, stomach, colorectum, lymph, lung, breast, kidney), the effect of up‑ and downregulation and the relationship of HADH with prognosis. In summary, HADH can be either a suppressor or a promoter depending on where the tumor is located, which is closely associated with prognostic assessment. HADHA and HADHB have similar prognostic roles in known and comparable tumors.