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Fig.1 A dendritic cell (blue) engages a T cell (yellow). 

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Fig. 2 Functionally specialized conventional and non-conventional dendritic cell subsets and related lineages.

cDC1

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Fig. 3 Illustration depicts the common signatures and shared signatures expressed by human and mouse conventional dendritic cell subset 1. The signature includes surface markers, transcription factors and major pattern recognition receptors. The signatures with * marks indicate tissue specific expression.

cDC2

cDC2ÊÇͨ¹ý¸ßˮƽ±í´ïMHC II¡¢CD11cºÍSIRPAÀ´Ê¶±ðµÄ¡£cDC2ÑÇȺÖ÷ÒªÒÀÀµÓÚIRF4ºÍZeb2½éµ¼µÄת¼µ÷¿Ø£¬¶øcdc1ÒÀÀµÓÚIRF8¡¢BATF3ºÍID2¡£cDC2ÊDZ£´æÓÚÈËÌå²î±ð×éÖ¯ºÍÆ÷¹ÙÖÐÖ÷ÒªµÄDCȺÌ壬ËüÃDZí´ïһϵÁÐTLRs£¬Äܹ»¶Ô´ÓºËÜÕËáµ½¶àÌǵÄÖÖÖÖΣÏÕÐźÅ×÷³ö·´Ó¦¡£ÓëÆäËûÎÈ̬DCÑÇȺÏà±È£¬ËüÃÇ»¹±í´ïÁ˸ßˮƽµÄNLRPsºÍÆäËûÑ×Ö¢Ïà¹ØÐźŷÖ×Ó£¬Åú×¢ËüÃǾßÓиÐÖª²î±ðΣÏÕÐźŵĹ¦Ð§¡£

Fig.  4 Illustration depicts the common signatures and shared signatures expressed by human and mouse conventional dendritic cell subset 2. The signature includes surface markers, transcription factors and major pattern recognition receptors. The signatures with * marks indicate tissue specific expression.

pDCs

µ±Óöµ½²¡¶¾Ñ¬È¾Ï¸°ûʱ£¬pDCs±»È·¶¨Îª±¬·¢×ÌÈÅËصÄϸ°ûÑÇȺ£¬ËüÃDZ¬·¢IÐÍ×ÌÈÅËغͼ¤»îЧӦϸ°ûµÄÄÜÁ¦ÔÚÆô¶¯¿¹²¡¶¾ÃâÒßÓ¦´ð·½Ãæ¾ßÓÐÒªº¦×÷Óá£pDCs¶ÔÐí¶àRNAºÍDNA²¡¶¾ÓÐÏìÓ¦£¬°üÀ¨VSVG, HCV, HAV, LCMV£¬µÇ¸ïÈȲ¡¶¾µÈ¡£

Fig. 5 Illustration depicts the common signatures and shared signatures expressed by human and mouse plasmacytoid dendritic cell. The signature includes surface markers, transcription factors and major pattern recognition receptors.

LCs

LCs×îÔçÓÚ19ÊÀ¼Í±»Paul Langerhans·¢Ã÷£¬Øʺó±»ÒÔΪÊÇDCϸ°ûµÄÒ»¸öÑÇϵ¡£ÀúÊ·ÉÏ£¬LCs±»ÒÔΪÊÇÊ÷ͻ״ϸ°û£¬ÓÉÓÚËüÃǾßÓе䷶µÄÊ÷ͻ״ϸ°ûǨáãµ½ÁÜͶºÏ¡¢³ÊµÝ¿¹Ô­ºÍ¼¤»îTϸ°ûµÄÌØÕ÷¡£LCsλÖÃÓÅÔ½£¬Î»ÓÚÍâ½çÇéÐεÄ×îÍⲿ£¬ÊÇÃâÒßϵͳµÄµÚÒ»µÀ·ÀµØ¡£

Fig. 6 Specialized functions of mouse classical dendritic cell subsets.

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Reference:

[1]Anderson D A ,  Dutertre C A ,  Ginhoux F , et al. Genetic models of human and mouse dendritic cell development and function[J]. Nature Reviews Immunology, 2020.

[2]Eisenbarth S C . Dendritic cell subsets in T cell programming: location dictates function[J]. Nature reviews. Immunology, 2018, 19(2).

[3]Balan S ,  Saxena M ,  Bhardwaj N . Dendritic cell subsets and locations[J]. International Review of Cell and Molecular Biology, 2019.

[4]Mueller,K. L . A dendritic cell target for immunotherapy[J]. Science, 2014, 346(6209):597-597.

[5]Steinman,  Ralph M . Decisions About Dendritic Cells: Past, Present, and Future[J]. Annual Review of Immunology, 2012, 30(1):1-22.

[6]Broz M L , Binnewies M , Boldajipour B , et al. Dissecting the Tumor Myeloid Compartment Reveals Rare Activating Antigen-Presenting Cells Critical for T Cell Immunity[J]. Cancer Cell, 2014, 26(5):638-652.

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