Volume 34, Issue 10 pp. 1766-1776
Experimental Gastroenterology

The suppressive role of HYAL1 and HYAL2 in the metastasis of colorectal cancer

Zhiming Jin

Zhiming Jin

Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China

Zhiming Jin and Guoliang Zhang contributed equally to this work.Search for more papers by this author
Guoliang Zhang

Guoliang Zhang

Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China

Zhiming Jin and Guoliang Zhang contributed equally to this work.Search for more papers by this author
Yiwen Liu

Yiwen Liu

Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China

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Yiqing He

Yiqing He

Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China

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Cuixia Yang

Cuixia Yang

Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China

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Yan Du

Yan Du

Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China

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Feng Gao

Corresponding Author

Feng Gao

Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China

Department of Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China

Correspondence

Dr Feng Gao, Department of Molecular Biology and Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China.

Email: [email protected]

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First published: 14 March 2019
Citations: 19
Declaration of conflict of interest: All the authors declare that they have no conflicts of interest.
Financial support: This work was funded by the National Natural Science Foundation of China (81702852, 81502491, 81572821, 81502490, and 81672843), Shanghai Municipal Education Commission—Gaofeng Clinical Medicine Grant Support (20171924), and the Program of Shanghai Leading Talents (2013-038).

Abstract

Background

Hyaluronidases (HAases), enzymes that degrade hyaluronan, have been widely investigated in cancer biology. However, whether HAases serve as tumor promoters or suppressors has been controversial in different cancers, and the exact role of HAases in colorectal cancer (CRC) has not been elucidated.

Methods

The expression levels of HYAL1, HYAL2, and HYAL3 in cancer and corresponding normal tissues from CRC patients were examined via immunohistochemistry. Then the correlation between HAases levels and pathological characteristics of CRC patients was analyzed. To verify the clinical data, HYAL1 and HYAL2 were downregulated or overexpressed in colon cancer cells LOVO and HCT116 to observe their influences on cell invasion and migration. For the mechanism study, we investigated the effects of HYAL1 and HYAL2 on the expression of matrix metalloproteases (MMPs)/tissue inhibitor of metalloproteases (TIMPs) and distribution of F-actin.

Results

All the three HAases were abnormally elevated in cancer tissues. Interestingly, HYAL1 and HYAL2, but not HYAL3, were negatively correlated with lymphatic metastasis and TNM stage. When HYAL1 and HYAL2 were knocked down, the invasion and migration abilities of colon cancer cells were accelerated, whereas overexpression of HYAL1 and HYAL2 had the opposite effects. In addition, colon cancer cells with HYAL1 and HYAL2 downregulation showed increased levels of MMP2 and MMP9, decreased levels of TIMP1 and TIMP2, and more intense F-actin stress fibers.

Conclusions

Our study suggests that HYAL1 and HYAL2 suppress CRC metastasis through regulating MMPs/TIMPs balance and rearranging F-actin distribution, further inhibiting invasion and migration of cancer cells.

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