Research

Neuroscience, immune, and neurodegeneration

Neurodegeneration and central immune

Behaviors of microglia and microglia-like cells during neuronal degeneration

Microglia and microglia-like cells play pivotal roles during neuronal degeneration by detecting, engulfing, and clearing degenerated neurons. This phagocytic process is tightly regulated but often accompanied by the release of proinflammatory signals. These behaviors contribute to both tissue cleanup and the neuroinflammatory milieu, influencing the progression and resolution of neurodegenerative conditions.

Stress, emotion and microglia

How microglia sense stress and regulate emotion

Microglia sense environmental stress through receptors for neurotransmitters and stress hormones such as norepinephrine and cortisol. By monitoring neuronal activity and synaptic changes, microglia respond to stress-induced signals. Their interactions with neural circuits involved in emotion suggest a role not only in sensing stress but potentially in modulating emotional states and resilience.

Intermittent fasting and cognitive function

How intermittent fasting benefits the body and promotes healthy aging

Intermittent fasting (IF) benefits the body by inducing metabolic shifts from glucose to ketone utilization, enhancing cellular stress resistance, and reducing inflammation. These changes improve central nervous system (CNS) function, promote neuroplasticity, and modulate microglial activity. Collectively, IF lowers the risk of age-related diseases and supports healthy aging across systems.

Anesthesia on central and peripheral immune

What the direct effect of anesthesia on central and peripheral immune system

The direct effects of anesthesia on central and peripheral immune cells remain poorly understood. While anesthetics may influence neuroimmune interactions and inflammatory responses, definitive cellular targets are unclear. This gap in knowledge complicates interpreting anesthesia-related outcomes in clinical practice, including postoperative cognitive dysfunction and infection risk, highlighting the need for targeted research.

Microglial homeostasis and heterogeneity

Intrinsic regulatory networks of microglia and their phenotypic heterogeneity

Microglial homeostasis involves intrinsic mechanisms that regulate their surveillance, activation states, and self-renewal, including the control of cell density. This ensures balanced responses to environmental cues. Population heterogeneity reflects diverse transcriptional and functional states across subsets, enabling context-specific adaptation and preserving neural integrity throughout different brain regions and conditions.

Technique

Featured approaches

Two-photon in vivo imaging

Enhanced by lab-innovated devices, to monitor long-term changes of the brain.

Electrophysiology

Whole-cell patch-clamp techniques in brain slices allow us to explore the brain's health and disease states, from ion channel function to synaptic transmission mechanisms.

Imaging guided patch-seq

Spatial and temporal RNA-seq on targeted cells of interest to analyze gene expression dynamics.

publication

Selected

Recent

2024

  • Xia Wang#, Han Zhan#, Bin Mou, Libo Hua, Zheng Zhao, Lang Huang, Jian Sima, Zongqin Xiang*, Yong U. Liu*. Chronic in vivo imaging of tau-induced neurodegeneration and microglial response using two-photon microscopy. Aging Research, 2024, 2(3): 9340035. DOI: 10.26599/AGR.2024.9340035
  • Zheng Zhao#, Jun-Liang Chen#, Han Zhan, Chang-Rong Fang, Li-Bo Hua, Hao-Yuan Deng, Zongqin Xiang, Ying Yang, Lang Huang*, Yong U Liu*. Noradrenergic projections from the locus coeruleus to the medial prefrontal cortex enhances stress coping behavior in mice following long-term intermittent fasting. Neuromolecular Medicine, 2024. 26, 47. DOI: 10.1007/s12017-024-08818-w

2022

  • Manling Xie# , Yong U. Liu*#, Shunyi Zhao, Lingxin Zhang, Dale B. Bosco, Yuan-Ping Pang, Jun Zhong, Udit Sheth, Yuka A. Martens, Na Zhao, Chia-Chen Liu, Yongxian Zhuang, Liewei Wang, Dennis W. Dickson, Mark P. Mattson, Guojun Bu, Long-Jun Wu*. TREM2 interacts with TDP-43 and mediates microglial neuroprotection against TDP-43-related neurodegeneration. Nature Neuroscience, 2021, Dec 16.

Previous

2017

  • Yong Liu#, Li-Jun Zhou#, Jun Wang#, Dai Li, Wen-Jie Ren, Jiyun Peng, Xiao Wei, Ting Xu, Wen-Jun Xin, Rui-Ping Pang, Yong-Yong Li, Zhi-Hai Qin, Madhuvika Murugan, Mark P Mattson, Long-Jun Wu*, Xian-Guo Liu*. TNF-α differentially regulates synaptic plasticity in the hippocampus and spinal cord by microglia-dependent mechanisms after peripheral nerve injury. Journal of Neuroscience, 2017. 37(4):871-881.

2019

  • Yong U. Liu, Yanlu Ying, Yujiao Li, Ukpong B. Eyo, Tingjun Chen, Jiaying Zheng, Anthony D. Umpierre, Jia Zhu, Dale B. Bosco, Hailong Dong, Long-Jun Wu*. Neuronal network activity controls microglial process surveillance in awake mice via norepinephrine signaling. Nature Neuroscience, 2019, 22:1771–1781.
  • Yong Liu*#, Aiwu Cheng#, Yu-Jiao Li, Ying Yang, Yuki Kishimoto, Shi Zhang, Yue Wang, Ruiqian Wan, Sophia M. Raefsky, Daoyuan Lu, Takashi Saito, Takaomi Saido, Jian Zhu, Long-Jun Wu, Mark P. Mattson*. SIRT3 mediates hippocampal synaptic adaptations to intermittent fasting and ameliorates deficits in APP mutant mice. Nature Communications, 2019. 10(1):1886.

Member

Current

Team Member

Liu, Yong U.

PhD, LNHD 2020-

Principal Investigator, two-photon imaging, whole-cell patch, animal behavior

Team Member

Huang, Lang

PhD, LNHD 2022-

Principal Investigator, Electrophysiology, Patch-seq, Animal behavior

Team Member

Xiang, Zongqin

PhD, LNHD 2022-

Research Scientist, Two-photon imaging, Animal behavior

Team Member

Ye, Jinfeng

BS, LNHD 2023-

Lab manager, Postdoctoral Fellow

Team Member

Wang, Xia

PhD, LNHD 2022-

Two-photon imaging, Biochemistry, Animal behavior

Team Member

Han, Jianbang

MD, PhD, LNHD 2024-

Two-photon imaging, Cell culture

Team Member

Sun, Kaijian

MD, PhD, LNHD 2024-

Bioinformatics, Residency standardization training in Neurosurgery

Team Member

Mou, Bin

PhD student, 2022-

Animal behavior, Immunohistochemistry

Team Member

Hua, Libo

PhD student, 2023-

Animal behavior, Immunohistochemistry

Team Member

Chen, Junliang

PhD student, 2024-

Animal behavior, Immunohistochemistry

Team Member

Zhang, Liting

MS-PhD student, 2023-

Bioinformatics

Team Member

Zhang, Yaping

MS student, 2022-

Animal behavior, Immunohistochemistry

Team Member

Li, Miaoting

MS student, 2024-

Immunohistochemistry, Animal behavior

Team Member

Deng, Haoyuan

MS student, 2024-

Immunohistochemistry, Animal behavior

Team Member

Cao, Haihong

PhD student, SYSU, 2023-

Cell culture, Immunohistochemistry

Team Member

Zhao, Zheng

PhD student, SYSU, 2025-

Animal behavior, Immunohistochemistry

Team Member

Deng, Wenyuan

MS student, SYSU, 2024-

MDMI and anesthesia, Cell culture

Team Member

Gu, Yu

MS student, USC, 2023-

MDMI and monocyte, Cell culture

Team Member

Du, Zixin

PhD student, 2025-

Bioinformatics

Team Member

Wang, Caiyun

PhD student, 2025-

MDMI and anesthesia, Cell culture

Team Member

Chen, Luo

MS student, 2025-

Animal behavior

Team Member

Chen, Zishun

MS student, 2025-

Bioinformatics

Lab Alumini

  • Fang, Changrong, MS, MS student, 2022-2025

  • Zhan, Han, MS, MS student, 2022-2025

  • Ling, Jiangyue, MS, MS student, 2024-2025

  • Bu, Shimiao, MS, MS student, 2021-2024
    Current: Residency standardization training in Ophthalmology at Guangzhou First People's Hospital

  • Liang, Jiade, MS, Research assistant, 2023-2024
    Current: MS, PhD student at Hainan University

  • Zhang, Renyue, MS, MS student, 2021-2024
    Current: MS, Research assistant at Guangzhou First People's Hospital

    • Miao, Tianze, BS, MS student, 2021-2024; Research assistant, 2022-2023

  • Xie, Tao, MS, Research assistant, 2021-2022
    Current: PhD student at University of Technology Sydney

Collaborator

Intramural (Clinician)

  • Zhang, Yuehong, MD, PhD, Ophthalmologist, Diabetic retinopathy

  • Zheng, Bin, MD, PhD, Anesthesiologist, Cognitive function

  • Ying, Yanlu, MD, PhD, Anesthesiologist, Neuro-immune interaction

  • Lu, Chengxiang, MD, Anesthesiologist

Intramural

  • Zheng, Jiajun, PhD, Research Scientist, Electrophysiology in vivo and in vitro, Animal behavior

  • Liu, Yufeng, PhD, Principal investigator, Immunologist

Extramural

  • Zhang, Guangyan, MD, Anesthesiologist, Morphine tolerance