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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Sep 2014, 35 (5)                                                                                                             Back

nstantaneous and historical temperature effects on a-pinene

Isolation and characterization of head kidney derived

macrophages of Labeo rohita 


Abhishek Awasthi1, Gaurav Rathore2*, P.K. Pradhan1, S.C. Rebello1, M.Y. Khan3 and W.S. Lakra2

1National Bureau of Fish Genetic Resources, Lucknow-226 002, India

2Central Institute of Fisheries Education, Mumbai-400 061, India

3Baba Saheb Bhimrao Ambedkar University, Lucknow-226 025, India

*Corresponding Authors Email :




Publication Data

Paper received:

24 May 2013


Revised received:

05 September 2013



12 September 2013




Macrophages play a significant role in non-specific defense mechanisms of all vertebrates against pathogens. One critical element in the area of fish immunology is the unavailability of in-vitro model of immune cells. Therefore, it is essential to develop methods for harvesting and culture of macrophages for assessing innate immune functions of rohu, Labeo rohita, an important culture fish of India. Head kidney leukocytes from were isolated by density gradient sedimentation, so as to exclude other cells. Among isolated leukocytes, only macrophages showed the unique property of sustained adherence on plastic surfaces. These cells exhibited optimum growth at 28 C in L-15 containing 20% FBS. Cultured head kidney macrophages (HKM) demonstrated the property of phagocytosis as evidenced by engulfment of yeast cells. Bacterial lipopolysaccharide (20g/ml) resulted in functional activation of macrophages as seen by enhanced reactive oxygen and nitrite production; and lysosomal enzyme activity. These results show that in-vitro model of HKM cells can be used to study the role of macrophages in innate immune responses against various immunomodulators. 


Key words

Head kidney, Labeo rohita, Macrophage, Phagocytosis



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