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2012•Advances in Bioscience and BiotechnologyOpen access

Microglia-conditioned medium promotes locomotor recovery and neuroprotection after rat spinal cord injury

May‐Jywan Tsai, Pei-Jou Ho, Yi-Lo Lin, Ming-Chao Huang, Meng‐Jen Lee, Dann-Ying Liou, Wen‐Cheng Huang, Yu-Show Fu, Henrich Cheng

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Abstract

This work examines whether microglia-conditioned medium (MCM) is beneficial in stressed spinal cord cells or tissues. MCM was separated into two fractions by 50 kDa molecular cut-off centrifugation. MCM not only promoted survival of neuronal and oligodendroglial cells but effectively reduced LPS stimulation in spinal cord cultures. We further utilized the NYU weight-drop device to induce contusive spinal cord injury (SCI) in rats. Immediately after dropping the impactor from a height of 25 mm onto thoracic spinal segment, MCM was intrathecally administered. At 6 weeks post-injury, SCI rats receiving MCM > 50 kDa treatment showed significant hind-limb improvement over MCM 50 kDa, of microglia was neuroprotective against spinal cord injury.

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What this paper is about

This work examines whether microglia-conditioned medium (MCM) is beneficial in stressed spinal cord cells or tissues. MCM was separated into two fractions by 50 kDa molecular cut-off centrifugation. MCM not only promoted survival of neuronal and oligodendroglial cells but effectively reduced LPS stimulation in spinal cord cultures. We further utilized the NYU weight-drop device to induce contusive spinal cord injury (SCI) in rats. Immediately after dropping the impactor from a height of 25 mm onto thoracic spinal segment, MCM was intrathecally administered. At 6 weeks post-injury, SCI rats receiving MCM > 50 kDa treatment showed significant hind-limb improvement over MCM 50 kDa, of microglia was neuroprotective against spinal cord injury.

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Available abstract

This work examines whether microglia-conditioned medium (MCM) is beneficial in stressed spinal cord cells or tissues. MCM was separated into two fractions by 50 kDa molecular cut-off centrifugation. MCM not only promoted survival of neuronal and oligodendroglial cells but effectively reduced LPS stimulation in spinal cord cultures. We further utilized the NYU weight-drop device to induce contusive spinal cord injury (SCI) in rats. Immediately after dropping the impactor from a height of 25 mm onto thoracic spinal segment, MCM was intrathecally administered. At 6 weeks post-injury, SCI rats receiving MCM > 50 kDa treatment showed significant hind-limb improvement over MCM 50 kDa, of microglia was neuroprotective against spinal cord injury.

Key concepts: Neuroprotection, Microglia, Spinal cord, Spinal cord injury, Medicine, Anesthesia, Hindlimb, Pharmacology

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Microglia-conditioned medium promotes locomotor recovery and neuroprotection after rat spinal cord injury — Research Paper | ScholarLens