Volume 48, Issue 8 pp. 1236-1242
ORIGINAL ARTICLE

Long-term efficacy and safety of intravenous injection of clonal mesenchymal stem cells derived from bone marrow in five adults with moderate to severe atopic dermatitis

Hyun-Tae Shin

Hyun-Tae Shin

Department of Dermatology, Inha University School of Medicine, Incheon, Republic of Korea

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Si Hyub Lee

Si Hyub Lee

Department of Dermatology, Inha University School of Medicine, Incheon, Republic of Korea

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Hee Seong Yoon

Hee Seong Yoon

Department of Dermatology, Inha University School of Medicine, Incheon, Republic of Korea

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Ji Hye Heo

Ji Hye Heo

Department of Dermatology, Inha University School of Medicine, Incheon, Republic of Korea

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Seon Bok Lee

Seon Bok Lee

Department of Dermatology, Inha University School of Medicine, Incheon, Republic of Korea

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Ji Won Byun

Ji Won Byun

Department of Dermatology, Inha University School of Medicine, Incheon, Republic of Korea

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Jeonghyun Shin

Jeonghyun Shin

Department of Dermatology, Inha University School of Medicine, Incheon, Republic of Korea

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Yun-Kyoung Cho

Yun-Kyoung Cho

SCM Lifescience Co. Ltd., Incheon, Republic of Korea

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Eunkyung Chung

Eunkyung Chung

SCM Lifescience Co. Ltd., Incheon, Republic of Korea

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Myung-Shin Jeon

Myung-Shin Jeon

Program in Biomedical Science and Engineering, Graduate School, Inha University, Incheon, Republic of Korea

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Sun U. Song

Corresponding Author

Sun U. Song

SCM Lifescience Co. Ltd., Incheon, Republic of Korea

Program in Biomedical Science and Engineering, Graduate School, Inha University, Incheon, Republic of Korea

Correspondence

Sun U. Song, Department of Integrated Biomedical Sciences, Inha University School of Medicine, Inhang-ro 27, Jung-gu, Incheon 22332, Korea.

Email: [email protected]

Gwang Seong Choi, Department of Dermatology, Inha University School of Medicine, Inhang-ro 27, Jung-gu, Incheon 22332, Korea.

Email: [email protected]

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Gwang Seong Choi

Corresponding Author

Gwang Seong Choi

Department of Dermatology, Inha University School of Medicine, Incheon, Republic of Korea

Correspondence

Sun U. Song, Department of Integrated Biomedical Sciences, Inha University School of Medicine, Inhang-ro 27, Jung-gu, Incheon 22332, Korea.

Email: [email protected]

Gwang Seong Choi, Department of Dermatology, Inha University School of Medicine, Inhang-ro 27, Jung-gu, Incheon 22332, Korea.

Email: [email protected]

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First published: 14 May 2021
Citations: 4

Hyun-Tae Shin and Si Hyub Lee contributed equally to this work.

Abstract

Atopic dermatitis is a chronic and relapsing inflammatory skin disease that is treated with immunosuppressants. However, long-term use of immunosuppressants may cause toxicity and severe side-effects. To confirm the long-term efficacy and safety of clonal mesenchymal stem cell therapy, we performed investigator-initiated clinical trials and long-term observation in five adult patients with moderate to severe atopic dermatitis that was refractory to conventional treatments. The clinical response assessment values such as Eczema Area and Severity Index (EASI) improved significantly at 16 weeks, and 80% (4/5) of the patients achieved EASI-50 after one or two treatment cycles. Patients were observed for long-term efficacy and safety for an average of 38 weeks (range, 16–86) and showed no serious side-effects. Among the cytokines tested, CCL-17, interleukin (IL)-13, and IL-22 significantly decreased at the end-point of the five participants, two patients who maintained good clinical response over 84 weeks showed increased IL-17 cytokine levels in the blood.

CONFLICT OF INTEREST

None declared.

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